/* Russian Email — homepage mockup (desktop + mobile)
   System: Antonio (display) / IBM Plex Sans (body) / IBM Plex Mono (eyebrow)
   Palette: graphite #080A0D · panel #11151B · steel #9EA7B3 · bone #F3EFE7 · steel-blue #6F8FAF
*/

const CH = {
  ink:    '#F3EFE7',
  inkDim: 'rgba(243,239,231,0.62)',
  inkLow: 'rgba(243,239,231,0.34)',
  inkFaint:'rgba(243,239,231,0.12)',
  bg:     '#080A0D',
  panel:  '#11151B',
  elev:   '#171C24',
  steel:  '#9EA7B3',
  brass:  '#6F8FAF',
  brassDim:'rgba(111,143,175,0.55)',
  gold:   '#D8C7A2',
  crimson:'#9B2F3F',
};

// Public site config. Claude should update site-config.js for each domain.
const SITE = {
  domain: 'russianemail.com',
  brandName: 'Russian Email',
  category: 'Russian-language email client concept',
  inquiryApi: 'https://inquiries.brianhaberstroh.com/api/inquiry',
  successMessage: 'Thanks — your inquiry for RussianEmail.com has been sent.',
  messagePlaceholder: 'Tell us how you would use RussianEmail.com.',
  ...(window.SITE_CONFIG || {}),
};

/* ---------- shared bits ---------- */

const grainSVG = "url(\"data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='240' height='240'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0  0 0 0 0 0  0 0 0 0 0  0 0 0 0.45 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>\")";

const Grain = ({ opacity = 0.55, blend = 'overlay' }) => (
  <div style={{
    position: 'absolute', inset: 0, pointerEvents: 'none',
    backgroundImage: grainSVG,
    opacity, mixBlendMode: blend,
  }} />
);

/* Photo placeholder plate — looks like an art-directed dark photo slot.
   When `image` is set, uses a real photo instead of the placeholder gradient. */
const Plate = ({ mood = 'deep', caption, image, imagePos = 'center', children, style = {}, id }) => {
  const moods = {
    deep: `
      radial-gradient(ellipse 70% 55% at 50% 18%, rgba(111,143,175,0.26), transparent 62%),
      radial-gradient(ellipse 50% 40% at 18% 78%, rgba(70,90,120,0.20), transparent 70%),
      radial-gradient(ellipse 40% 30% at 82% 70%, rgba(10,14,22,0.5), transparent 70%),
      linear-gradient(180deg, #141923 0%, #0a0d12 55%, #050608 100%)`,
    metal: `
      radial-gradient(ellipse 80% 60% at 50% 50%, rgba(158,167,179,0.16), transparent 65%),
      linear-gradient(115deg, #0c0e12 0%, #181c24 50%, #07090c 100%)`,
    road: `
      radial-gradient(ellipse 90% 30% at 50% 100%, rgba(111,143,175,0.18), transparent 60%),
      linear-gradient(180deg, #050608 0%, #0a0d12 60%, #141923 100%)`,
    leather: `
      radial-gradient(ellipse 70% 50% at 60% 40%, rgba(90,116,146,0.22), transparent 62%),
      linear-gradient(160deg, #141a23 0%, #07090d 100%)`,
    workshop: `
      radial-gradient(circle 320px at 70% 30%, rgba(111,143,175,0.30), transparent 60%),
      radial-gradient(circle 220px at 20% 80%, rgba(70,90,120,0.18), transparent 65%),
      linear-gradient(180deg, #11151b 0%, #06070900 100%), #060709`,
  };
  return (
    <div id={id} style={{
      position: 'relative', overflow: 'hidden',
      background: image
        ? `#050403 url("${image}") ${imagePos} / cover no-repeat`
        : (moods[mood] || moods.deep),
      ...style,
    }}>
      <Grain opacity={image ? 0.25 : 0.55} />
      {/* faint vignette */}
      <div style={{
        position: 'absolute', inset: 0, pointerEvents: 'none',
        background: image
          ? 'radial-gradient(ellipse 95% 80% at 50% 50%, transparent 60%, rgba(0,0,0,0.45) 100%)'
          : 'radial-gradient(ellipse 90% 70% at 50% 50%, transparent 55%, rgba(0,0,0,0.55) 100%)',
      }} />
      {caption && (
        <div style={{
          position: 'absolute', bottom: 14, right: 18,
          fontFamily: 'IBM Plex Mono, monospace', fontSize: 9.5,
          letterSpacing: 1.4, textTransform: 'uppercase',
          color: 'rgba(235,229,216,0.42)',
        }}>{caption}</div>
      )}
      {children}
    </div>
  );
};

const Eyebrow = ({ children, style = {} }) => (
  <div style={{
    fontFamily: 'IBM Plex Mono, monospace',
    fontSize: 10.5, letterSpacing: 2.2, textTransform: 'uppercase',
    color: CH.brass,
    display: 'inline-flex', alignItems: 'center', gap: 10,
    ...style,
  }}>
    <span style={{ width: 22, height: 1, background: CH.brass, opacity: 0.85 }} />
    <span>{children}</span>
  </div>
);

/* RE envelope mark */
const CHMark = ({ size = 56, color = CH.ink, accent = CH.brass }) => (
  <svg viewBox="0 0 64 64" width={size} height={size} style={{ display: 'block' }}>
    {/* hairline frame */}
    <rect x="1.5" y="1.5" width="61" height="61" fill="none" stroke={color} strokeOpacity="0.35" strokeWidth="1" />
    {/* envelope body */}
    <rect x="16" y="22" width="32" height="22" fill="none" stroke={color} strokeWidth="2.4" />
    {/* envelope flap */}
    <path d="M 16 22 L 32 35 L 48 22"
          fill="none" stroke={color} strokeWidth="2.4" strokeLinecap="square" strokeLinejoin="round" />
    {/* accent tick */}
    <rect x="30" y="54" width="4" height="4" fill={accent} />
  </svg>
);

/* Wordmark — Antonio, condensed, set tight */
const Wordmark = ({ size = 22, color = CH.ink }) => (
  <span style={{
    fontFamily: 'Antonio, "Saira Condensed", sans-serif',
    fontWeight: 600, fontSize: size, letterSpacing: 0.5,
    color, lineHeight: 1, textTransform: 'none',
    display: 'inline-flex', alignItems: 'baseline', gap: size * 0.18,
  }}>
    <span>Russian</span><span style={{ fontWeight: 400, opacity: 0.78 }}>Email</span>
  </span>
);

/* ──────────── Shared form logic ──────────── */

const INQUIRY_API_URL = SITE.inquiryApi;

function useInquiryForm() {
  const [values, setValues] = React.useState({
    name: '', email: '', message: '', website: ''
  });
  const [status, setStatus] = React.useState('idle');
  const [errorMsg, setErrorMsg] = React.useState('');

  const set = field => e => setValues(v => ({ ...v, [field]: e.target.value }));

  const handleSubmit = async e => {
    e.preventDefault();
    if (status === 'submitting') return;
    if (!values.name.trim() || !values.message.trim()) {
      setStatus('error'); setErrorMsg('Name and Message are required.'); return;
    }
    if (!/^[^\s@]+@[^\s@]+\.[^\s@]+$/.test(values.email)) {
      setStatus('error'); setErrorMsg('Please enter a valid email address.'); return;
    }
    setStatus('submitting');
    try {
      const res = await fetch(INQUIRY_API_URL, {
        method: 'POST',
        headers: { 'Content-Type': 'application/json' },
        body: JSON.stringify({
          name: values.name,
          email: values.email,
          message: values.message,
          website: values.website,
          domain: SITE.domain,
          category: SITE.category,
          pageUrl: window.location.href,
          referrer: document.referrer,
          submittedAt: new Date().toISOString(),
        }),
      });
      if (res.ok) {
        setStatus('success');
      } else {
        const d = await res.json().catch(() => ({}));
        setStatus('error');
        setErrorMsg(d.error || d.message || 'Something went wrong. Please try again.');
      }
    } catch {
      setStatus('error');
      setErrorMsg('Something went wrong sending your inquiry. Please try again or contact the owner directly.');
    }
  };

  return { values, status, errorMsg, set, handleSubmit };
}

const MobileContactForm = () => {
  const { values, status, errorMsg, set, handleSubmit } = useInquiryForm();
  const fields = [
    { l: 'Name',    n: 'name',    t: 'text',  r: true, h: 'Required',          p: 'First & last' },
    { l: 'Email',   n: 'email',   t: 'email', r: true, h: 'Required',          p: 'you@example.com' },
    { l: 'Message', n: 'message', t: 'area',  r: true, h: 'How you would use it', p: SITE.messagePlaceholder },
  ];
  return (
    <form onSubmit={handleSubmit} style={{ marginTop: 36, position: 'relative' }}>
      <div style={{ position: 'absolute', left: '-9999px', height: 0, overflow: 'hidden' }} aria-hidden="true">
        <input type="text" name="website" value={values.website} onChange={set('website')} tabIndex={-1} autoComplete="off" />
      </div>
      {status === 'success' ? (
        <div style={{ padding: '40px 0', fontFamily: 'IBM Plex Mono, monospace',
          fontSize: 10.5, letterSpacing: 2, textTransform: 'uppercase', color: CH.brass, lineHeight: 1.8 }}>
          {SITE.successMessage}
        </div>
      ) : (
        <>
          {status === 'error' && (
            <div style={{ marginBottom: 16, fontFamily: 'IBM Plex Mono, monospace',
              fontSize: 10, letterSpacing: 1.6, textTransform: 'uppercase',
              color: 'rgba(200,90,60,0.9)', lineHeight: 1.6 }}>
              {errorMsg}
            </div>
          )}
          {fields.map(f => (
            <div key={f.l} style={{ marginBottom: 22 }}>
              <div style={{
                fontFamily: 'IBM Plex Mono, monospace', fontSize: 9.5,
                letterSpacing: 2, textTransform: 'uppercase', color: CH.brass,
                marginBottom: 10, display: 'flex', justifyContent: 'space-between',
              }}>
                <span>{f.l}</span>
                <span style={{ color: CH.inkLow }}>{f.h}</span>
              </div>
              {f.t === 'area' ? (
                <textarea name={f.n} value={values[f.n]} onChange={set(f.n)}
                  placeholder={f.p} required={f.r}
                  style={{
                    background: 'none', border: 'none', width: '100%',
                    borderBottom: `1px solid ${CH.inkFaint}`, paddingBottom: 12,
                    minHeight: 100, resize: 'vertical',
                    fontFamily: 'Antonio, sans-serif', fontSize: 20,
                    color: CH.ink, lineHeight: 1.3, letterSpacing: 0,
                    outline: 'none', caretColor: CH.brass,
                  }}
                />
              ) : (
                <input type={f.t} name={f.n} value={values[f.n]} onChange={set(f.n)}
                  placeholder={f.p} required={f.r}
                  style={{
                    background: 'none', border: 'none', width: '100%',
                    borderBottom: `1px solid ${CH.inkFaint}`, paddingBottom: 12,
                    fontFamily: 'Antonio, sans-serif', fontSize: 20,
                    color: CH.ink, letterSpacing: 0,
                    outline: 'none', caretColor: CH.brass,
                  }}
                />
              )}
            </div>
          ))}
          <button type="submit" disabled={status === 'submitting'} style={{
            display: 'inline-flex', alignItems: 'center', gap: 12, marginTop: 12,
            padding: '14px 22px',
            fontFamily: 'IBM Plex Mono, monospace', fontSize: 10.5,
            letterSpacing: 2.2, textTransform: 'uppercase',
            color: CH.bg, background: status === 'submitting' ? CH.steel : CH.brass,
            border: 'none', cursor: status === 'submitting' ? 'default' : 'pointer',
            opacity: status === 'submitting' ? 0.7 : 1,
          }}>
            {status === 'submitting' ? 'Sending…' : 'Send Inquiry'}
          </button>
          <div style={{
            marginTop: 18,
            fontFamily: 'IBM Plex Mono, monospace', fontSize: 9.5,
            letterSpacing: 1.6, textTransform: 'uppercase', color: CH.inkLow, lineHeight: 1.7,
          }}>
            Illustrative brand concept · Domain available for acquisition.
          </div>
        </>
      )}
    </form>
  );
};

/* ============================================================
   DESKTOP — 1440 wide
   ============================================================ */

const Desktop = () => (
  <div style={{
    width: 1440, background: CH.bg, color: CH.ink,
    fontFamily: 'IBM Plex Sans, sans-serif', fontSize: 15, lineHeight: 1.55,
    position: 'relative', overflow: 'hidden',
  }}>
    <DesktopNav />
    <DesktopHero />
    <DesktopStory />
    <DesktopCulture />
    <DesktopManifesto />
    <DesktopIdentity />
    <DesktopContact />
    <DesktopFooter />
  </div>
);

const DesktopNav = () => (
  <div style={{
    position: 'absolute', top: 0, left: 0, right: 0, zIndex: 20,
    padding: '26px 56px',
    display: 'flex', alignItems: 'center', justifyContent: 'space-between',
  }}>
    <div style={{ display: 'flex', alignItems: 'center', gap: 18 }}>
      <Wordmark size={22} />
      <span style={{ width: 1, height: 14, background: CH.inkFaint }} />
      <span style={{
        fontFamily: 'IBM Plex Mono, monospace', fontSize: 10,
        letterSpacing: 2.4, textTransform: 'uppercase', color: CH.inkLow,
      }}>Brand Concept · RussianEmail.com</span>
    </div>
    <div style={{ display: 'flex', alignItems: 'center', gap: 40 }}>
      {[['Concept', '#story'], ['Experience', '#culture'], ['Use Cases', '#presence']].map(([l, href], i) => (
        <a key={l} href={href} style={{
          fontFamily: 'IBM Plex Mono, monospace', fontSize: 11.5,
          letterSpacing: 2.2, textTransform: 'uppercase',
          color: i === 0 ? CH.ink : CH.inkDim, textDecoration: 'none',
          display: 'inline-flex', alignItems: 'center', gap: 6,
        }}>
          <span style={{
            color: CH.brass, opacity: 0.7,
            fontSize: 9, fontVariantNumeric: 'tabular-nums',
          }}>0{i + 1}</span>
          {l}
        </a>
      ))}
      <a href="#inquiry" style={{
        fontFamily: 'IBM Plex Mono, monospace', fontSize: 11.5,
        letterSpacing: 2.2, textTransform: 'uppercase', color: CH.ink,
        textDecoration: 'none',
        border: `1px solid ${CH.inkFaint}`, padding: '10px 18px',
        display: 'inline-flex', alignItems: 'center', gap: 8,
      }}>
        Domain Inquiry
        <span style={{ width: 5, height: 5, background: CH.crimson, borderRadius: 0 }} />
      </a>
    </div>
  </div>
);

const DesktopHero = () => (
  <Plate id="hero" image="media/hero.jpg" imagePos="center" caption="// 01 · inbox · message cards · steel light" style={{ height: 880 }}>
    {/* faint horizon detail — subtle gradient grounding the copy */}
    <div style={{
      position: 'absolute', left: 0, right: 0, bottom: 0, height: 460,
      background: 'linear-gradient(180deg, transparent 0%, rgba(0,0,0,0.35) 45%, rgba(0,0,0,0.75) 100%)',
    }} />

    {/* corner indices */}
    <div style={{
      position: 'absolute', top: 110, left: 56,
      fontFamily: 'IBM Plex Mono, monospace', fontSize: 10.5,
      letterSpacing: 2.4, textTransform: 'uppercase', color: CH.inkLow,
    }}>
      N° 001 — Brand Concept
    </div>
    <div style={{
      position: 'absolute', top: 110, right: 56,
      fontFamily: 'IBM Plex Mono, monospace', fontSize: 10.5,
      letterSpacing: 2.4, textTransform: 'uppercase', color: CH.inkLow,
      textAlign: 'right',
    }}>
      Inbox / Clarity / Focus
    </div>

    {/* hero copy — left-anchored, lower third */}
    <div style={{
      position: 'absolute', left: 56, bottom: 96, maxWidth: 940,
    }}>
      <div style={{ marginBottom: 28 }}><Eyebrow>RussianEmail.com</Eyebrow></div>
      <h1 style={{
        fontFamily: 'Antonio, sans-serif', fontWeight: 600,
        fontSize: 148, lineHeight: 0.95, letterSpacing: -1.5,
        margin: 0, color: CH.ink,
      }}>
        A calmer inbox<br />
        <span style={{ color: CH.ink, fontWeight: 400 }}>for Russian-language </span>
        <span style={{
          fontStyle: 'italic', fontFamily: '"Instrument Serif", serif', fontSize: '0.82em', lineHeight: 1.05,
          color: CH.gold, fontWeight: 500,
        }}>communication.</span>
      </h1>
      <p style={{
        marginTop: 84, marginBottom: 0, maxWidth: 540,
        fontSize: 17, lineHeight: 1.55, color: CH.inkDim,
      }}>
        Russian Email is a premium brand concept for a focused email experience built around
        readable correspondence, bilingual clarity, and a quieter way to manage messages.
      </p>

      <div style={{ marginTop: 40, display: 'flex', alignItems: 'center', gap: 28 }}>
        <a href="#inquiry" style={{
          fontFamily: 'IBM Plex Mono, monospace', fontSize: 11.5,
          letterSpacing: 2.4, textTransform: 'uppercase',
          color: CH.bg, background: CH.brass,
          padding: '18px 28px', textDecoration: 'none',
          display: 'inline-flex', alignItems: 'center', gap: 14,
        }}>
          Inquire About RussianEmail.com
          <span style={{ display: 'inline-block', width: 18, height: 1, background: CH.bg }} />
        </a>
        <a href="#story" style={{
          fontFamily: 'IBM Plex Mono, monospace', fontSize: 11.5,
          letterSpacing: 2.4, textTransform: 'uppercase',
          color: CH.ink, textDecoration: 'none',
          padding: '18px 0',
          display: 'inline-flex', alignItems: 'center', gap: 12,
          borderBottom: `1px solid ${CH.inkFaint}`,
        }}>
          View Brand Concept
        </a>
      </div>
    </div>

    {/* scroll marker bottom-right */}
    <div style={{
      position: 'absolute', right: 56, bottom: 64,
      display: 'flex', flexDirection: 'column', alignItems: 'flex-end', gap: 12,
    }}>
      <div style={{
        fontFamily: 'IBM Plex Mono, monospace', fontSize: 10,
        letterSpacing: 2.4, textTransform: 'uppercase', color: CH.inkLow,
      }}>Scroll · 01 of 05</div>
      <div style={{ width: 1, height: 56, background: `linear-gradient(180deg, ${CH.brass}, transparent)` }} />
    </div>
  </Plate>
);

const DesktopStory = () => (
  <div id="story" style={{
    background: CH.bg, padding: '160px 56px 160px',
    display: 'grid', gridTemplateColumns: '560px 1fr', gap: 96,
  }}>
    <Plate image="media/concept.jpg" imagePos="center" caption="// 01 · inbox · message cards" style={{ height: 720 }} />

    <div style={{ paddingTop: 24, alignSelf: 'start' }}>
      <Eyebrow>01 — Concept</Eyebrow>
      <h2 style={{
        marginTop: 36, marginBottom: 36, maxWidth: 660,
        fontFamily: 'Antonio, sans-serif', fontWeight: 500,
        fontSize: 72, lineHeight: 0.98, letterSpacing: -0.5,
        color: CH.ink,
      }}>
        Built around language,<br />
        clarity, and<br />
        <span style={{ fontStyle: 'italic', fontFamily: '"Instrument Serif", serif', fontSize: '0.82em', lineHeight: 1.05, color: CH.gold, fontWeight: 400 }}>focus.</span>
      </h2>
      <p style={{
        fontSize: 18, lineHeight: 1.6, color: CH.inkDim, maxWidth: 520, margin: 0,
      }}>
        RussianEmail.com has the kind of direct, memorable name that instantly explains the idea:
        a dedicated email experience for Russian-language communication. The concept pairs a polished
        inbox interface with a calm editorial identity, giving the domain room to become a private
        mail product, a communications app, or a language-focused productivity brand.
      </p>

      <div style={{
        marginTop: 64, paddingTop: 36, borderTop: `1px solid ${CH.inkFaint}`,
        display: 'grid', gridTemplateColumns: 'repeat(3, 1fr)', gap: 40, maxWidth: 580,
      }}>
        {[
          { n: 'RU·EN', l: 'Bilingual by design' },
          { n: '01',    l: 'Exact-match domain' },
          { n: '∞',     l: 'Room to grow' },
        ].map(s => (
          <div key={s.l}>
            <div style={{
              fontFamily: 'Antonio, sans-serif', fontWeight: 500,
              fontSize: 56, lineHeight: 1, color: CH.ink,
            }}>{s.n}</div>
            <div style={{
              marginTop: 10,
              fontFamily: 'IBM Plex Mono, monospace', fontSize: 10.5,
              letterSpacing: 1.8, textTransform: 'uppercase', color: CH.inkLow,
            }}>{s.l}</div>
          </div>
        ))}
      </div>
    </div>
  </div>
);

const cultureItems = [
  { n: '01', label: 'Cyrillic-First',    mood: 'metal',   image: 'media/experience-cyrillic.jpg', h: 560, blurb: 'Readable Cyrillic typography and message text, set for clarity at every size.', cap: '// type · cyrillic readability' },
  { n: '02', label: 'Bilingual Flow',    mood: 'deep',    image: 'media/experience-bilingual.jpg', h: 720, blurb: 'Russian and English correspondence side by side, with calm switching between them.', cap: '// flow · ru / en correspondence' },
  { n: '03', label: 'Calm Organization', mood: 'leather', image: 'media/experience-organize.jpg', h: 720, blurb: 'Threads, labels, and message cards arranged to keep the inbox quiet and focused.', cap: '// inbox · threads · labels' },
  { n: '04', label: 'Private Inbox',     mood: 'road',    image: 'media/experience-private.jpg', h: 560, blurb: 'A premium, private-feeling interface built for focus rather than noise.', cap: '// surface · private · focused' },
];

const DesktopCulture = () => (
  <div id="culture" style={{ background: CH.bg, padding: '40px 56px 180px' }}>
    {/* section header — runs across the page */}
    <div style={{
      display: 'flex', alignItems: 'flex-end', justifyContent: 'space-between',
      paddingBottom: 56, borderBottom: `1px solid ${CH.inkFaint}`, marginBottom: 64,
    }}>
      <div>
        <Eyebrow>02 — Experience</Eyebrow>
        <h2 style={{
          marginTop: 28, marginBottom: 0, maxWidth: 900,
          fontFamily: 'Antonio, sans-serif', fontWeight: 500,
          fontSize: 96, lineHeight: 0.95, letterSpacing: -0.8,
          color: CH.ink,
        }}>
          An inbox concept with<br />
          <span style={{ fontStyle: 'italic', fontFamily: '"Instrument Serif", serif', fontSize: '0.82em', lineHeight: 1.05, fontWeight: 400, color: CH.inkDim }}>room to breathe.</span>
        </h2>
      </div>
      <div style={{
        fontFamily: 'IBM Plex Mono, monospace', fontSize: 10.5,
        letterSpacing: 2.2, textTransform: 'uppercase', color: CH.inkLow,
        textAlign: 'right', paddingBottom: 12,
      }}>
        Readable · Bilingual<br/>Organized · Private
      </div>
    </div>

    {/* asymmetric grid of 4 — staircase */}
    <div style={{
      display: 'grid', gridTemplateColumns: 'repeat(2, 1fr)',
      columnGap: 24, rowGap: 64,
    }}>
      {cultureItems.map((c, i) => (
        <div key={c.label} style={{ marginTop: i % 2 === 1 ? 64 : 0 }}>
          <Plate mood={c.mood} image={c.image} caption={c.cap} style={{ height: c.h }} />
          <div style={{
            marginTop: 22, display: 'flex', alignItems: 'baseline', justifyContent: 'space-between',
          }}>
            <div style={{ display: 'flex', alignItems: 'baseline', gap: 18 }}>
              <span style={{
                fontFamily: 'IBM Plex Mono, monospace', fontSize: 11,
                letterSpacing: 2, color: CH.brass,
              }}>N° {c.n}</span>
              <h3 style={{
                fontFamily: 'Antonio, sans-serif', fontWeight: 500,
                fontSize: 44, lineHeight: 1, letterSpacing: -0.3,
                color: CH.ink, margin: 0,
              }}>{c.label}</h3>
            </div>
            <a href="#inquiry" style={{
              fontFamily: 'IBM Plex Mono, monospace', fontSize: 10.5,
              letterSpacing: 2.2, textTransform: 'uppercase',
              color: CH.inkDim, textDecoration: 'none',
            }}>Enter →</a>
          </div>
          <p style={{
            marginTop: 14, marginBottom: 0, maxWidth: 440,
            fontSize: 15.5, color: CH.inkDim,
          }}>{c.blurb}</p>
        </div>
      ))}
    </div>
  </div>
);

const DesktopManifesto = () => (
  <Plate id="manifesto" image="media/manifesto.jpg" caption="// 03 · direction · message light · steel" style={{ height: 700 }}>
    {/* darken to make headline readable on top of the photo */}
    <div style={{
      position: 'absolute', inset: 0,
      background: 'radial-gradient(ellipse 70% 60% at 50% 50%, rgba(0,0,0,0.7) 0%, rgba(0,0,0,0.4) 50%, rgba(0,0,0,0.65) 100%)',
    }} />
    <div style={{
      position: 'absolute', inset: 0,
      display: 'flex', alignItems: 'center', justifyContent: 'center',
      flexDirection: 'column',
    }}>
      <div style={{ marginBottom: 56 }}><Eyebrow style={{ color: CH.brass }}>03 — Direction</Eyebrow></div>
      <h2 style={{
        margin: 0, textAlign: 'center',
        fontFamily: 'Antonio, sans-serif', fontWeight: 500,
        fontSize: 128, lineHeight: 0.92, letterSpacing: -1.2,
        color: CH.ink,
      }}>
        Easy to say.<br />
        Easy to remember.<br />
        <span style={{ color: CH.gold, fontStyle: 'italic', fontFamily: '"Instrument Serif", serif', fontSize: '0.82em', lineHeight: 1.05, fontWeight: 400 }}>Obvious at a glance.</span>
      </h2>
      <div style={{
        marginTop: 56, display: 'flex', alignItems: 'center', gap: 18,
        fontFamily: 'IBM Plex Mono, monospace', fontSize: 10.5,
        letterSpacing: 2.4, textTransform: 'uppercase', color: CH.inkLow,
      }}>
        <span style={{ width: 32, height: 1, background: CH.inkFaint }} />
        <span>A direct name for Russian-language communication</span>
        <span style={{ width: 32, height: 1, background: CH.inkFaint }} />
      </div>
    </div>
  </Plate>
);

/* Artifact card — looks like a physical brand object (patch, tag, plate, stamp).
   Adds corner ticks, stitched border option, brass label tab, and subtle texture. */
const Artifact = ({ label, footnote, stitched = false, accentTab = false, children, style = {}, contentStyle = {} }) => (
  <div style={{
    position: 'relative', background: CH.bg,
    border: `1px solid ${CH.inkFaint}`,
    boxShadow: 'inset 0 0 80px rgba(0,0,0,0.55), inset 0 1px 0 rgba(235,229,216,0.04)',
    ...style,
  }}>
    {/* corner ticks — like rivets / brass corner brackets on a build plate */}
    {[
      { top: 8, left: 8, b: '1px 0 0 1px' },
      { top: 8, right: 8, b: '1px 1px 0 0' },
      { bottom: 8, left: 8, b: '0 0 1px 1px' },
      { bottom: 8, right: 8, b: '0 1px 1px 0' },
    ].map((c, i) => (
      <span key={i} style={{
        position: 'absolute', width: 10, height: 10,
        borderStyle: 'solid', borderColor: CH.brassDim, borderWidth: c.b,
        ...c,
      }} />
    ))}
    {/* stitched inner border */}
    {stitched && (
      <div style={{
        position: 'absolute', inset: 18, pointerEvents: 'none',
        border: `1px dashed rgba(184,118,42,0.32)`,
      }} />
    )}
    {/* grain wash */}
    <div style={{
      position: 'absolute', inset: 0, pointerEvents: 'none',
      backgroundImage: grainSVG, opacity: 0.18, mixBlendMode: 'overlay',
    }} />
    {/* brass tab in top-left if accentTab */}
    {accentTab && (
      <span style={{
        position: 'absolute', top: -1, left: 32, width: 22, height: 4,
        background: CH.brass,
      }} />
    )}
    {/* content */}
    <div style={{
      position: 'relative', zIndex: 1, height: '100%',
      display: 'flex', flexDirection: 'column', ...contentStyle,
    }}>
      <div style={{
        fontFamily: 'IBM Plex Mono, monospace', fontSize: 9.5,
        letterSpacing: 2.4, textTransform: 'uppercase', color: CH.inkLow,
        display: 'flex', alignItems: 'center', gap: 10,
      }}>
        <span style={{ width: 10, height: 1, background: CH.brassDim }} />
        {label}
      </div>
      {children}
      {footnote && (
        <div style={{
          fontFamily: 'IBM Plex Mono, monospace', fontSize: 9.5,
          letterSpacing: 2.2, textTransform: 'uppercase', color: CH.inkLow,
        }}>{footnote}</div>
      )}
    </div>
  </div>
);

const presenceNotes = [
  { n: '01', t: 'Email Client',   kind: 'stance',  d: 'A Russian-language webmail product with a clean, readable inbox at its center.' },
  { n: '02', t: 'Bilingual Inbox', kind: 'tank',    d: 'A bilingual inbox product that handles Russian and English correspondence with ease.' },
  { n: '03', t: 'Private Brand',  kind: 'metal',   d: 'A private communication brand positioned around calm, focused, personal messaging.' },
  { n: '04', t: 'Creator Mail',   kind: 'leather', d: 'A newsletter or creator mail platform with a memorable, category-matching identity.' },
  { n: '05', t: 'Correspondence', kind: 'shop',    d: 'An international correspondence tool for families, teams, and businesses across languages.' },
  { n: '06', t: 'Productivity',   kind: 'road',    d: 'A language-focused productivity brand built on a plainspoken, easy-to-remember name.' },
];

const PresenceGlyph = ({ kind, size = 44 }) => {
  const s = size; const cx = s/2; const cy = s/2;
  const stroke = CH.brass; const dim = CH.inkLow;
  switch (kind) {
    case 'stance': // low silhouette: wheel · frame · wheel hint
      return (
        <svg viewBox={`0 0 ${s} ${s}`} width={s} height={s}>
          <line x1={s*0.08} y1={s*0.82} x2={s*0.92} y2={s*0.82} stroke={dim} strokeWidth="1" />
          <circle cx={s*0.26} cy={s*0.66} r={s*0.14} fill="none" stroke={stroke} strokeWidth="1.2" />
          <circle cx={s*0.74} cy={s*0.66} r={s*0.14} fill="none" stroke={stroke} strokeWidth="1.2" />
          <line x1={s*0.30} y1={s*0.58} x2={s*0.70} y2={s*0.58} stroke={CH.ink} strokeWidth="1.4" />
          <line x1={s*0.42} y1={s*0.58} x2={s*0.46} y2={s*0.48} stroke={CH.ink} strokeWidth="1" />
        </svg>
      );
    case 'tank': // teardrop
      return (
        <svg viewBox={`0 0 ${s} ${s}`} width={s} height={s}>
          <path d={`M ${s*0.18} ${cy} Q ${s*0.30} ${s*0.30}, ${s*0.62} ${s*0.30} Q ${s*0.86} ${s*0.32}, ${s*0.82} ${cy} Q ${s*0.78} ${s*0.72}, ${s*0.50} ${s*0.72} Q ${s*0.22} ${s*0.72}, ${s*0.18} ${cy} Z`} fill="none" stroke={stroke} strokeWidth="1.2" />
          <path d={`M ${s*0.28} ${s*0.42} Q ${s*0.42} ${s*0.36}, ${s*0.58} ${s*0.40}`} fill="none" stroke={dim} strokeWidth="0.8" opacity="0.7" />
          <circle cx={s*0.66} cy={cy} r="1.6" fill={stroke} />
        </svg>
      );
    case 'metal': // spoked wheel
      return (
        <svg viewBox={`0 0 ${s} ${s}`} width={s} height={s}>
          <circle cx={cx} cy={cy} r={s*0.36} fill="none" stroke={stroke} strokeWidth="1.2" />
          <circle cx={cx} cy={cy} r={s*0.06} fill={stroke} />
          {[0, 45, 90, 135].map(a => {
            const rad = (a * Math.PI) / 180;
            const x1 = cx + Math.cos(rad) * s*0.06;
            const y1 = cy + Math.sin(rad) * s*0.06;
            const x2 = cx + Math.cos(rad) * s*0.36;
            const y2 = cy + Math.sin(rad) * s*0.36;
            const x1b = cx - Math.cos(rad) * s*0.06;
            const y1b = cy - Math.sin(rad) * s*0.06;
            const x2b = cx - Math.cos(rad) * s*0.36;
            const y2b = cy - Math.sin(rad) * s*0.36;
            return (
              <g key={a}>
                <line x1={x1} y1={y1} x2={x2} y2={y2} stroke={dim} strokeWidth="0.8" />
                <line x1={x1b} y1={y1b} x2={x2b} y2={y2b} stroke={dim} strokeWidth="0.8" />
              </g>
            );
          })}
        </svg>
      );
    case 'leather': // stitched panel
      return (
        <svg viewBox={`0 0 ${s} ${s}`} width={s} height={s}>
          <rect x={s*0.16} y={s*0.22} width={s*0.68} height={s*0.56} fill="none" stroke={dim} strokeWidth="1" />
          <rect x={s*0.22} y={s*0.28} width={s*0.56} height={s*0.44} fill="none" stroke={stroke} strokeWidth="0.8" strokeDasharray="2 3" />
          <line x1={s*0.50} y1={s*0.30} x2={s*0.50} y2={s*0.70} stroke={dim} strokeWidth="0.6" strokeDasharray="2 3" />
        </svg>
      );
    case 'shop': // pendant + floor
      return (
        <svg viewBox={`0 0 ${s} ${s}`} width={s} height={s}>
          <line x1={cx} y1={s*0.08} x2={cx} y2={s*0.36} stroke={dim} strokeWidth="1" />
          <circle cx={cx} cy={s*0.42} r={s*0.07} fill={stroke} />
          <path d={`M ${cx} ${s*0.48} L ${s*0.28} ${s*0.80} L ${s*0.72} ${s*0.80} Z`} fill={stroke} opacity="0.16" stroke={stroke} strokeWidth="0.6" />
          <line x1={s*0.10} y1={s*0.82} x2={s*0.90} y2={s*0.82} stroke={dim} strokeWidth="1" />
        </svg>
      );
    case 'road': // perspective lines to vanishing point
      return (
        <svg viewBox={`0 0 ${s} ${s}`} width={s} height={s}>
          <circle cx={cx} cy={s*0.38} r="1.4" fill={stroke} />
          <line x1={s*0.08} y1={s*0.86} x2={cx} y2={s*0.38} stroke={dim} strokeWidth="1" />
          <line x1={s*0.92} y1={s*0.86} x2={cx} y2={s*0.38} stroke={dim} strokeWidth="1" />
          <line x1={s*0.32} y1={s*0.86} x2={s*0.46} y2={s*0.48} stroke={stroke} strokeWidth="1.2" />
          <line x1={s*0.42} y1={s*0.86} x2={s*0.49} y2={s*0.56} stroke={stroke} strokeWidth="1" strokeDasharray="3 3" />
        </svg>
      );
  }
};

const DesktopIdentity = () => (
  <div id="presence" style={{ background: CH.panel, padding: '160px 56px 160px', position: 'relative' }}>
    {/* faint workshop wash behind */}
    <div style={{
      position: 'absolute', inset: 0, pointerEvents: 'none',
      backgroundImage: grainSVG, opacity: 0.18, mixBlendMode: 'overlay',
    }} />

    {/* header */}
    <div style={{ position: 'relative', display: 'flex', alignItems: 'flex-end', justifyContent: 'space-between', marginBottom: 72, gap: 60 }}>
      <div>
        <Eyebrow>04 — Use Cases</Eyebrow>
        <h2 style={{
          marginTop: 28, marginBottom: 0,
          fontFamily: 'Antonio, sans-serif', fontWeight: 500,
          fontSize: 80, lineHeight: 0.96, letterSpacing: -0.6,
          color: CH.ink,
        }}>
          A flexible domain for<br/>
          <span style={{ fontStyle: 'italic', fontFamily: '"Instrument Serif", serif', fontSize: '0.82em', lineHeight: 1.05, color: CH.gold, fontWeight: 400 }}>email, productivity, or communication.</span>
        </h2>
      </div>
      <div style={{
        maxWidth: 420,
        fontSize: 15.5, lineHeight: 1.65, color: CH.inkDim, paddingBottom: 12,
      }}>
        RussianEmail.com is plainspoken, memorable, and immediately category-defining — a name with room to become a focused product, resource, or communications platform.
      </div>
    </div>

    {/* Six presence cards */}
    <div style={{
      position: 'relative', marginTop: 24,
      display: 'grid', gridTemplateColumns: 'repeat(3, 1fr)', gap: 24,
    }}>
      {presenceNotes.map((m) => (
        <Artifact
          key={m.t}
          label={`N° ${m.n}`}
          contentStyle={{ padding: '28px 28px 24px', justifyContent: 'space-between', minHeight: 240 }}
        >
          <div style={{
            marginTop: 18,
            display: 'flex', alignItems: 'center', gap: 18,
          }}>
            <PresenceGlyph kind={m.kind} size={44} />
            <h3 style={{
              margin: 0, whiteSpace: 'nowrap',
              fontFamily: 'Antonio, sans-serif', fontWeight: 500,
              fontSize: 30, letterSpacing: 0.2, color: CH.ink,
            }}>{m.t}</h3>
          </div>
          <p style={{
            margin: 0, marginTop: 18,
            fontSize: 14.5, lineHeight: 1.55, color: CH.inkDim,
          }}>{m.d}</p>
        </Artifact>
      ))}
    </div>

    {/* bottom strip — brand line */}
    <div style={{
      position: 'relative', marginTop: 64, paddingTop: 28,
      borderTop: `1px solid ${CH.inkFaint}`,
      display: 'flex', alignItems: 'center', justifyContent: 'space-between',
      fontFamily: 'IBM Plex Mono, monospace', fontSize: 10.5,
      letterSpacing: 2.4, textTransform: 'uppercase', color: CH.inkLow,
    }}>
      <span>Cyrillic-first · Bilingual · Organized · Private</span>
      <span>Calm to read · Simple to remember</span>
      <span style={{ color: CH.brass }}>A focused home for Russian-language email</span>
    </div>
  </div>
);

const DesktopContact = () => {
  const { values, status, errorMsg, set, handleSubmit } = useInquiryForm();
  const formFields = [
    { label: 'Name',  name: 'name',  type: 'text',  required: true, hint: 'Required', placeholder: 'First & last' },
    { label: 'Email', name: 'email', type: 'email', required: true, hint: 'Required', placeholder: 'you@example.com' },
  ];
  return (
    <div id="inquiry" style={{
      background: CH.bg, padding: '180px 56px',
      display: 'grid', gridTemplateColumns: '1fr 1fr', gap: 96,
    }}>
      <div>
        <Eyebrow>05 — Inquire</Eyebrow>
        <h2 style={{
          marginTop: 28, marginBottom: 36, maxWidth: 580,
          fontFamily: 'Antonio, sans-serif', fontWeight: 500,
          fontSize: 96, lineHeight: 0.95, letterSpacing: -0.8,
          color: CH.ink,
        }}>
          Inquire about<br/>
          <span style={{ fontStyle: 'italic', fontFamily: '"Instrument Serif", serif', fontSize: '0.82em', lineHeight: 1.05, color: CH.gold, fontWeight: 400 }}>RussianEmail.com</span>
        </h2>
        <p style={{ maxWidth: 440, fontSize: 16, lineHeight: 1.6, color: CH.inkDim, margin: 0 }}>
          This page is an illustrative brand concept showing one possible direction for <span style={{ color: CH.ink }}>RussianEmail.com</span>. The domain may be available for acquisition by the right buyer, operator, or brand team.
        </p>
        <div style={{
          marginTop: 72, paddingTop: 32, borderTop: `1px solid ${CH.inkFaint}`,
          display: 'grid', gridTemplateColumns: '1fr 1fr 1fr', gap: 24, maxWidth: 520,
        }}>
          {[
            { l: 'Domain',    v: 'RussianEmail.com' },
            { l: 'Direction', v: 'Russian-language email' },
            { l: 'Status',    v: 'Open to serious inquiries' },
          ].map(b => (
            <div key={b.l}>
              <div style={{
                fontFamily: 'IBM Plex Mono, monospace', fontSize: 10,
                letterSpacing: 2.2, textTransform: 'uppercase', color: CH.brass,
                display: 'flex', alignItems: 'center', gap: 8,
              }}>
                <span style={{ width: 8, height: 1, background: CH.brassDim }} />
                {b.l}
              </div>
              <div style={{
                marginTop: 12,
                fontFamily: 'Antonio, sans-serif', fontSize: 22, color: CH.ink, lineHeight: 1.2,
              }}>
                {b.v}
              </div>
            </div>
          ))}
        </div>

        {/* small honesty note tucked under the info blocks */}
        <div style={{
          marginTop: 40, maxWidth: 460,
          display: 'flex', gap: 14, alignItems: 'flex-start',
          paddingTop: 18, borderTop: `1px dashed ${CH.inkFaint}`,
        }}>
          <span style={{
            marginTop: 4, width: 6, height: 6, background: CH.brass, flexShrink: 0,
          }} />
          <div style={{
            fontFamily: 'IBM Plex Mono, monospace', fontSize: 10.5,
            letterSpacing: 1.6, textTransform: 'uppercase', color: CH.inkLow, lineHeight: 1.7,
          }}>
            Illustrative brand concept. Not affiliated with any government, agency, or existing email provider.
          </div>
        </div>
      </div>

      <form onSubmit={handleSubmit} style={{ paddingTop: 80, position: 'relative' }}>
        {/* honeypot */}
        <div style={{ position: 'absolute', left: '-9999px', height: 0, overflow: 'hidden' }} aria-hidden="true">
          <input type="text" name="website" value={values.website} onChange={set('website')} tabIndex={-1} autoComplete="off" />
        </div>
        {status === 'success' ? (
          <div style={{ padding: '56px 0', fontFamily: 'IBM Plex Mono, monospace',
            fontSize: 12, letterSpacing: 2, textTransform: 'uppercase', color: CH.brass, lineHeight: 1.8 }}>
            {SITE.successMessage}
          </div>
        ) : (
          <>
            {status === 'error' && (
              <div style={{ marginBottom: 20, fontFamily: 'IBM Plex Mono, monospace',
                fontSize: 11, letterSpacing: 1.6, textTransform: 'uppercase',
                color: 'rgba(200,90,60,0.9)', lineHeight: 1.6 }}>
                {errorMsg}
              </div>
            )}
            {formFields.map(f => (
              <div key={f.label} style={{ marginBottom: 30 }}>
                <div style={{
                  fontFamily: 'IBM Plex Mono, monospace', fontSize: 10,
                  letterSpacing: 2.2, textTransform: 'uppercase', color: CH.brass,
                  marginBottom: 12, display: 'flex', justifyContent: 'space-between',
                }}>
                  <span>{f.label}</span>
                  <span style={{ color: CH.inkLow }}>{f.hint}</span>
                </div>
                <input
                  type={f.type}
                  name={f.name}
                  value={values[f.name]}
                  onChange={set(f.name)}
                  placeholder={f.placeholder}
                  required={f.required}
                  style={{
                    background: 'none', border: 'none', width: '100%',
                    borderBottom: `1px solid ${CH.inkFaint}`,
                    paddingBottom: 14,
                    fontFamily: 'Antonio, sans-serif', fontSize: 26,
                    color: CH.ink, letterSpacing: 0.2,
                    outline: 'none', caretColor: CH.brass,
                  }}
                />
              </div>
            ))}
            <div style={{ marginBottom: 44 }}>
              <div style={{
                fontFamily: 'IBM Plex Mono, monospace', fontSize: 10,
                letterSpacing: 2.2, textTransform: 'uppercase', color: CH.brass,
                marginBottom: 12, display: 'flex', justifyContent: 'space-between',
              }}>
                <span>Message</span>
                <span style={{ color: CH.inkLow }}>How you would use it</span>
              </div>
              <textarea
                name="message"
                value={values.message}
                onChange={set('message')}
                placeholder={SITE.messagePlaceholder}
                required
                style={{
                  background: 'none', border: 'none', width: '100%',
                  borderBottom: `1px solid ${CH.inkFaint}`,
                  paddingBottom: 14, minHeight: 140, resize: 'vertical',
                  fontFamily: 'Antonio, sans-serif', fontSize: 26,
                  color: CH.ink, letterSpacing: 0.2,
                  outline: 'none', caretColor: CH.brass,
                }}
              />
            </div>
            <div style={{ display: 'flex', alignItems: 'center', justifyContent: 'space-between', gap: 24 }}>
              <button
                type="submit"
                disabled={status === 'submitting'}
                style={{
                  fontFamily: 'IBM Plex Mono, monospace', fontSize: 11.5,
                  letterSpacing: 2.4, textTransform: 'uppercase',
                  color: CH.bg, background: status === 'submitting' ? CH.steel : CH.brass,
                  padding: '20px 32px', border: 'none',
                  cursor: status === 'submitting' ? 'default' : 'pointer',
                  display: 'inline-flex', alignItems: 'center', gap: 16,
                  opacity: status === 'submitting' ? 0.7 : 1,
                }}
              >
                {status === 'submitting' ? 'Sending…' : 'Send Inquiry'}
                <span style={{ width: 22, height: 1, background: CH.bg, display: 'inline-block' }} />
              </button>
              <div style={{
                fontFamily: 'IBM Plex Mono, monospace', fontSize: 10,
                letterSpacing: 1.8, textTransform: 'uppercase', color: CH.inkLow,
                textAlign: 'right', lineHeight: 1.6, maxWidth: 220,
              }}>
                Concept shown for<br/>illustrative purposes.
              </div>
            </div>
          </>
        )}
      </form>
    </div>
  );
};

const DesktopFooter = () => (
  <div id="footer" style={{
    background: CH.panel, padding: '64px 56px 48px',
    borderTop: `1px solid ${CH.inkFaint}`,
  }}>
    <div style={{
      display: 'grid', gridTemplateColumns: '1.1fr 1fr 1fr 1fr', gap: 56,
      paddingBottom: 56,
    }}>
      {/* brand block */}
      <div>
        <div style={{ display: 'flex', alignItems: 'center', gap: 22 }}>
          <CHMark size={48} />
          <div>
            <div style={{
              fontFamily: 'Antonio, sans-serif', fontWeight: 600, fontSize: 28,
              color: CH.ink, lineHeight: 1, letterSpacing: 0.4,
            }}>Russian<span style={{ fontWeight: 400, opacity: 0.78 }}>Email</span></div>
            <div style={{
              marginTop: 8,
              fontFamily: 'IBM Plex Mono, monospace', fontSize: 10,
              letterSpacing: 2.2, textTransform: 'uppercase', color: CH.brass,
            }}>A calmer inbox for Russian-language email.</div>
          </div>
        </div>
        <p style={{
          marginTop: 28, marginBottom: 0, maxWidth: 360,
          fontFamily: 'IBM Plex Mono, monospace', fontSize: 10.5,
          letterSpacing: 1.6, textTransform: 'uppercase', color: CH.inkLow, lineHeight: 1.7,
        }}>
          RussianEmail.com is presented as an independent illustrative brand concept. It is not affiliated with, endorsed by, or operated by any government, public agency, or existing email provider. No live email service is represented on this page.
        </p>
      </div>
      {[
        { h: 'Concept', l: [
          { t: 'Brand Direction', href: '#story' },
          { t: 'Visual Identity', href: '#presence' },
          { t: 'Use Cases',       href: '#presence' },
        ]},
        { h: 'Domain', l: [
          { t: 'RussianEmail.com',    href: '#inquiry' },
          { t: 'Acquisition Inquiry', href: '#inquiry' },
          { t: 'Contact',             href: '#inquiry' },
        ]},
        { h: 'Note', l: [
          { t: 'Independent Concept',         href: null },
          { t: 'No Government Affiliation',   href: null },
        ]},
      ].map(g => (
        <div key={g.h}>
          <div style={{
            fontFamily: 'IBM Plex Mono, monospace', fontSize: 10,
            letterSpacing: 2.2, textTransform: 'uppercase', color: CH.inkLow,
            marginBottom: 18, display: 'flex', alignItems: 'center', gap: 8,
          }}>
            <span style={{ width: 8, height: 1, background: CH.brassDim }} />
            {g.h}
          </div>
          <div style={{ display: 'grid', gap: 10 }}>
            {g.l.map(x => (
              <a key={x.t} href={x.href || undefined} style={{
                fontFamily: 'Antonio, sans-serif', fontSize: 20, color: CH.ink,
                letterSpacing: 0.2, textDecoration: 'none', lineHeight: 1.15,
              }}>{x.t}</a>
            ))}
          </div>
        </div>
      ))}
    </div>
    <div style={{
      paddingTop: 28, borderTop: `1px solid ${CH.inkFaint}`,
      display: 'flex', alignItems: 'center', justifyContent: 'space-between',
      fontFamily: 'IBM Plex Mono, monospace', fontSize: 10,
      letterSpacing: 2, textTransform: 'uppercase', color: CH.inkLow,
    }}>
      <span>© MMXXVI · RussianEmail · Concept presentation</span>
      <span>Independently owned · Available for acquisition</span>
      <span style={{ color: CH.brass }}>Volume One — 001</span>
    </div>
  </div>
);

/* ============================================================
   MOBILE — 390 wide
   ============================================================ */

const Mobile = () => (
  <div style={{
    width: 390, background: CH.bg, color: CH.ink,
    fontFamily: 'IBM Plex Sans, sans-serif', fontSize: 14, lineHeight: 1.55,
    position: 'relative', overflow: 'hidden',
  }}>
    {/* status bar */}
    <div style={{
      height: 44, display: 'flex', alignItems: 'center', justifyContent: 'space-between',
      padding: '0 22px', fontFamily: 'IBM Plex Mono, monospace', fontSize: 11,
      color: CH.ink, fontWeight: 600, position: 'absolute', top: 0, left: 0, right: 0, zIndex: 30,
    }}>
      <span>9:41</span>
      <span style={{ display: 'flex', gap: 6 }}>
        <span>●●●●</span><span>●●</span>
      </span>
    </div>

    {/* nav */}
    <div style={{
      position: 'absolute', top: 44, left: 0, right: 0, zIndex: 20,
      padding: '16px 22px', display: 'flex', alignItems: 'center', justifyContent: 'space-between',
    }}>
      <Wordmark size={18} />
      <div style={{ display: 'flex', flexDirection: 'column', gap: 4 }}>
        <span style={{ width: 22, height: 1, background: CH.ink }} />
        <span style={{ width: 16, height: 1, background: CH.ink, alignSelf: 'flex-end' }} />
      </div>
    </div>

    {/* hero */}
    <Plate id="m-hero" image="media/hero.jpg" imagePos="center" caption="// 01 · inbox · steel" style={{ height: 720, paddingTop: 100 }}>
      <div style={{
        position: 'absolute', left: 0, right: 0, bottom: 0, height: 380,
        background: 'linear-gradient(180deg, transparent 0%, rgba(0,0,0,0.4) 50%, rgba(0,0,0,0.8) 100%)',
      }} />
      <div style={{
        position: 'absolute', left: 22, bottom: 56, right: 22,
      }}>
        <div style={{ marginBottom: 18 }}><Eyebrow>RussianEmail.com</Eyebrow></div>
        <h1 style={{
          fontFamily: 'Antonio, sans-serif', fontWeight: 600,
          fontSize: 60, lineHeight: 0.9, letterSpacing: -0.6,
          margin: 0, color: CH.ink,
        }}>
          A calmer inbox<br/>
          <span style={{ fontStyle: 'italic', fontFamily: '"Instrument Serif", serif', fontSize: '0.82em', lineHeight: 1.05, color: CH.gold, fontWeight: 500 }}>for Russian-language communication.</span>
        </h1>
        <p style={{ marginTop: 52, color: CH.inkDim, fontSize: 14, lineHeight: 1.55 }}>
          A premium brand concept for a focused email experience built around readable, bilingual correspondence.
        </p>
        <a href="#inquiry" style={{
          display: 'inline-flex', alignItems: 'center', gap: 12,
          marginTop: 24, padding: '14px 22px',
          fontFamily: 'IBM Plex Mono, monospace', fontSize: 10.5,
          letterSpacing: 2.2, textTransform: 'uppercase',
          color: CH.bg, background: CH.brass, textDecoration: 'none',
        }}>
          Inquire About the Domain
          <span style={{ width: 16, height: 1, background: CH.bg }} />
        </a>
      </div>
    </Plate>

    {/* story */}
    <div id="m-story" style={{ padding: '88px 22px 64px' }}>
      <Eyebrow>01 — Concept</Eyebrow>
      <h2 style={{
        marginTop: 22, marginBottom: 20,
        fontFamily: 'Antonio, sans-serif', fontWeight: 500,
        fontSize: 44, lineHeight: 0.98, letterSpacing: -0.3,
        color: CH.ink,
      }}>
        Built around language, clarity, and <span style={{ fontStyle: 'italic', fontFamily: '"Instrument Serif", serif', fontSize: '0.82em', lineHeight: 1.05, color: CH.gold, fontWeight: 400 }}>focus.</span>
      </h2>
      <p style={{ color: CH.inkDim, fontSize: 14.5, lineHeight: 1.6 }}>
        RussianEmail.com has a direct, memorable name that instantly explains the idea: a dedicated email experience for Russian-language communication, paired with a calm editorial identity.
      </p>
      <Plate image="media/concept.jpg" caption="// 01 · inbox · cards" style={{ height: 320, marginTop: 32 }} />
    </div>

    {/* culture */}
    <div id="m-culture" style={{ padding: '0 22px 64px' }}>
      <Eyebrow>02 — Experience</Eyebrow>
      <h2 style={{
        marginTop: 22, marginBottom: 32,
        fontFamily: 'Antonio, sans-serif', fontWeight: 500,
        fontSize: 48, lineHeight: 0.95, letterSpacing: -0.4,
        color: CH.ink,
      }}>
        An inbox concept with <span style={{ fontStyle: 'italic', fontFamily: '"Instrument Serif", serif', fontSize: '0.82em', lineHeight: 1.05, color: CH.inkDim, fontWeight: 400 }}>room to breathe.</span>
      </h2>
      <div style={{ display: 'grid', gap: 36 }}>
        {cultureItems.map(c => (
          <div key={c.label}>
            <Plate mood={c.mood} image={c.image} caption={c.cap} style={{ height: 280 }} />
            <div style={{ marginTop: 14, display: 'flex', alignItems: 'baseline', gap: 12 }}>
              <span style={{
                fontFamily: 'IBM Plex Mono, monospace', fontSize: 10,
                letterSpacing: 2, color: CH.brass,
              }}>N° {c.n}</span>
              <h3 style={{
                fontFamily: 'Antonio, sans-serif', fontWeight: 500,
                fontSize: 32, lineHeight: 1, color: CH.ink, margin: 0,
              }}>{c.label}</h3>
            </div>
            <p style={{ marginTop: 8, color: CH.inkDim, fontSize: 14 }}>{c.blurb}</p>
          </div>
        ))}
      </div>
    </div>

    {/* manifesto */}
    <Plate id="m-manifesto" image="media/manifesto.jpg" caption="// 03 · direction" style={{ height: 520 }}>
      <div style={{
        position: 'absolute', inset: 0,
        background: 'radial-gradient(ellipse 80% 60% at 50% 50%, rgba(0,0,0,0.7) 0%, rgba(0,0,0,0.45) 60%, rgba(0,0,0,0.7) 100%)',
      }} />
      <div style={{ position: 'absolute', inset: 0, display: 'flex', alignItems: 'center', justifyContent: 'center', flexDirection: 'column', padding: '0 22px' }}>
        <div style={{ marginBottom: 26 }}><Eyebrow>03 — Direction</Eyebrow></div>
        <h2 style={{
          margin: 0, textAlign: 'center',
          fontFamily: 'Antonio, sans-serif', fontWeight: 500,
          fontSize: 52, lineHeight: 0.92, letterSpacing: -0.4,
          color: CH.ink,
        }}>
          Easy to say.<br/>
          Easy to remember.<br/>
          <span style={{ color: CH.gold, fontStyle: 'italic', fontFamily: '"Instrument Serif", serif', fontSize: '0.82em', lineHeight: 1.05, fontWeight: 400 }}>Obvious at a glance.</span>
        </h2>
      </div>
    </Plate>

    {/* presence */}
    <div id="m-presence" style={{ background: CH.panel, padding: '64px 22px' }}>
      <Eyebrow>04 — Use Cases</Eyebrow>
      <h2 style={{
        marginTop: 22, marginBottom: 16,
        fontFamily: 'Antonio, sans-serif', fontWeight: 500,
        fontSize: 38, lineHeight: 0.96, letterSpacing: -0.3,
        color: CH.ink,
      }}>
        A flexible domain for<br/>
        <span style={{ fontStyle: 'italic', fontFamily: '"Instrument Serif", serif', fontSize: '0.82em', lineHeight: 1.05, color: CH.gold, fontWeight: 400 }}>email, productivity, or communication.</span>
      </h2>
      <p style={{ color: CH.inkDim, fontSize: 13.5, lineHeight: 1.6, marginBottom: 28 }}>
        RussianEmail.com is plainspoken, memorable, and immediately category-defining — with room to become a focused product, resource, or communications platform.
      </p>
      {/* presence cards — 2-col grid */}
      <div style={{ display: 'grid', gridTemplateColumns: '1fr 1fr', gap: 10 }}>
        {presenceNotes.map((m) => (
          <Artifact
            key={m.t}
            label={`N° ${m.n}`}
            contentStyle={{ padding: 16, justifyContent: 'space-between', minHeight: 180 }}
          >
            <div style={{ marginTop: 12, display: 'flex', alignItems: 'center', gap: 10 }}>
              <PresenceGlyph kind={m.kind} size={32} />
              <h3 style={{
                margin: 0, whiteSpace: 'nowrap',
                fontFamily: 'Antonio, sans-serif', fontWeight: 500,
                fontSize: 20, letterSpacing: 0.2, color: CH.ink,
              }}>{m.t}</h3>
            </div>
            <p style={{
              margin: 0, marginTop: 12,
              fontSize: 12.5, lineHeight: 1.5, color: CH.inkDim,
            }}>{m.d}</p>
          </Artifact>
        ))}
      </div>

      {/* brand line strip */}
      <div style={{
        marginTop: 18, padding: '18px 18px',
        border: `1px solid ${CH.inkFaint}`, background: CH.bg,
        display: 'grid', gap: 10,
      }}>
        <div style={{
          fontFamily: 'IBM Plex Mono, monospace', fontSize: 9,
          letterSpacing: 2, textTransform: 'uppercase', color: CH.inkLow, lineHeight: 1.7,
        }}>Cyrillic-first · Bilingual<br/>Organized · Private</div>
        <div style={{
          fontFamily: 'IBM Plex Mono, monospace', fontSize: 9.5,
          letterSpacing: 2, textTransform: 'uppercase', color: CH.brass,
        }}>A focused home for Russian-language email</div>
      </div>
    </div>

    {/* contact */}
    <div id="m-inquiry" style={{ padding: '64px 22px' }}>
      <Eyebrow>05 — Inquire</Eyebrow>
      <h2 style={{
        marginTop: 22, marginBottom: 20,
        fontFamily: 'Antonio, sans-serif', fontWeight: 500,
        fontSize: 44, lineHeight: 0.95, letterSpacing: -0.5,
        color: CH.ink,
      }}>
        Inquire about<br/>
        <span style={{ fontStyle: 'italic', fontFamily: '"Instrument Serif", serif', fontSize: '0.82em', lineHeight: 1.05, color: CH.gold, fontWeight: 400 }}>RussianEmail.com</span>
      </h2>
      <p style={{ color: CH.inkDim, fontSize: 13.5, lineHeight: 1.6 }}>
        This page is an illustrative brand concept showing one possible direction for <span style={{ color: CH.ink }}>RussianEmail.com</span>. The domain may be available for acquisition by the right buyer, operator, or brand team.
      </p>

      <div style={{
        marginTop: 32, paddingTop: 22, borderTop: `1px solid ${CH.inkFaint}`,
        display: 'grid', gap: 18,
      }}>
        {[
          { l: 'Domain',    v: 'RussianEmail.com' },
          { l: 'Direction', v: 'Russian-language email' },
          { l: 'Status',    v: 'Open to serious inquiries' },
        ].map(b => (
          <div key={b.l}>
            <div style={{
              fontFamily: 'IBM Plex Mono, monospace', fontSize: 9.5,
              letterSpacing: 2, textTransform: 'uppercase', color: CH.brass,
            }}>{b.l}</div>
            <div style={{
              marginTop: 4,
              fontFamily: 'Antonio, sans-serif', fontSize: 20, color: CH.ink, lineHeight: 1.2,
            }}>{b.v}</div>
          </div>
        ))}
      </div>

      <MobileContactForm />
    </div>

    {/* footer */}
    <div id="m-footer" style={{ background: CH.panel, padding: '36px 22px 32px', borderTop: `1px solid ${CH.inkFaint}` }}>
      <div style={{ display: 'flex', alignItems: 'center', gap: 14 }}>
        <CHMark size={36} />
        <div>
          <div style={{ fontFamily: 'Antonio, sans-serif', fontWeight: 600, fontSize: 22, color: CH.ink, lineHeight: 1 }}>Russian<span style={{ fontWeight: 400, opacity: 0.78 }}>Email</span></div>
          <div style={{ marginTop: 6, fontFamily: 'IBM Plex Mono, monospace', fontSize: 9, letterSpacing: 2, textTransform: 'uppercase', color: CH.brass }}>A calmer inbox for Russian-language email.</div>
        </div>
      </div>
      <p style={{
        marginTop: 22, marginBottom: 0,
        fontFamily: 'IBM Plex Mono, monospace', fontSize: 9.5,
        letterSpacing: 1.5, textTransform: 'uppercase', color: CH.inkLow, lineHeight: 1.7,
      }}>
        RussianEmail.com is presented as an independent illustrative brand concept. It is not affiliated with, endorsed by, or operated by any government, public agency, or existing email provider. No live email service is represented on this page.
      </p>
      <div style={{
        marginTop: 28, display: 'grid', gridTemplateColumns: '1fr 1fr', gap: 24,
      }}>
        {[
          { h: 'Concept', l: [
            { t: 'Brand Direction', href: '#story' },
            { t: 'Visual Identity', href: '#presence' },
            { t: 'Use Cases',       href: '#presence' },
          ]},
          { h: 'Domain', l: [
            { t: 'RussianEmail.com',    href: '#inquiry' },
            { t: 'Acquisition Inquiry', href: '#inquiry' },
            { t: 'Contact',             href: '#inquiry' },
          ]},
        ].map(g => (
          <div key={g.h}>
            <div style={{
              fontFamily: 'IBM Plex Mono, monospace', fontSize: 9,
              letterSpacing: 2, textTransform: 'uppercase', color: CH.inkLow,
              marginBottom: 12,
            }}>{g.h}</div>
            <div style={{ display: 'grid', gap: 6 }}>
              {g.l.map(x => (
                <a key={x.t} href={x.href} style={{
                  fontFamily: 'Antonio, sans-serif', fontSize: 16, color: CH.ink,
                  letterSpacing: 0.2, lineHeight: 1.2, textDecoration: 'none',
                }}>{x.t}</a>
              ))}
            </div>
          </div>
        ))}
      </div>
      <div style={{
        marginTop: 24, paddingTop: 16, borderTop: `1px solid ${CH.inkFaint}`,
        fontFamily: 'IBM Plex Mono, monospace', fontSize: 9,
        letterSpacing: 2, textTransform: 'uppercase', color: CH.inkLow, lineHeight: 1.8,
      }}>
        © MMXXVI · RussianEmail<br/>Independent concept · No government or provider affiliation<br/>
        <span style={{ color: CH.brass }}>Volume One — 001</span>
      </div>
    </div>
  </div>
);

Object.assign(window, { Desktop, Mobile });