/* GreatViewer.com — homepage (desktop + mobile)
   System: Antonio (display) / IBM Plex Sans (body) / IBM Plex Mono (eyebrow)
   Palette: graphite #0a0908 · panel #13110f · muted #6b6760 · ivory #ebe5d8 · amber #b87c2e · violet #7c6eaa
*/

const GV = {
  ink:      '#ebe5d8',
  inkDim:   'rgba(235,229,216,0.62)',
  inkLow:   'rgba(235,229,216,0.34)',
  inkFaint: 'rgba(235,229,216,0.14)',
  bg:       '#0a0908',
  panel:    '#13110f',
  muted:    '#6b6760',
  amber:    '#b87c2e',
  amberDim: 'rgba(184,124,46,0.55)',
  violet:   'rgba(124,110,170,0.72)',
};

// Public site config — updated via site-config.js
const SITE = {
  domain: 'GreatViewer.com',
  brandName: 'GreatViewer',
  category: 'Creative review platform concept',
  inquiryApi: 'https://inquiries.brianhaberstroh.com/api/inquiry',
  successMessage: 'Thanks — your inquiry for GreatViewer.com has been sent.',
  messagePlaceholder: 'Tell us how you would use GreatViewer.com, or ask about acquisition details.',
  ...(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 plate — real photo when `image` is set, else editorial gradient placeholder */
const Plate = ({ mood = 'studio', caption, image, imagePos = 'center', children, style = {}, id }) => {
  const moods = {
    studio: `
      radial-gradient(ellipse 70% 55% at 50% 18%, rgba(184,124,46,0.26), transparent 62%),
      radial-gradient(ellipse 50% 40% at 18% 78%, rgba(124,110,170,0.18), transparent 70%),
      radial-gradient(ellipse 40% 30% at 82% 70%, rgba(20,10,30,0.5), transparent 70%),
      linear-gradient(180deg, #1a1410 0%, #0c0907 55%, #050302 100%)`,
    review: `
      radial-gradient(ellipse 80% 60% at 50% 50%, rgba(100,90,130,0.18), transparent 65%),
      linear-gradient(115deg, #0d0c0a 0%, #1a1814 50%, #080705 100%)`,
    dark: `
      radial-gradient(ellipse 90% 30% at 50% 100%, rgba(184,124,46,0.18), transparent 60%),
      linear-gradient(180deg, #050403 0%, #0c0a08 60%, #1a140d 100%)`,
    amber: `
      radial-gradient(ellipse 70% 50% at 60% 40%, rgba(154,98,32,0.25), transparent 62%),
      linear-gradient(160deg, #1d1410 0%, #0d0805 100%)`,
    glow: `
      radial-gradient(circle 320px at 70% 30%, rgba(184,124,46,0.28), transparent 60%),
      radial-gradient(circle 220px at 20% 80%, rgba(124,110,170,0.18), transparent 65%),
      linear-gradient(180deg, #14100c 0%, #07060500 100%), #060504`,
  };
  return (
    <div id={id} style={{
      position: 'relative', overflow: 'hidden',
      background: image
        ? `#050403 url("${image}") ${imagePos} / cover no-repeat`
        : (moods[mood] || moods.studio),
      ...style,
    }}>
      <Grain opacity={image ? 0.25 : 0.55} />
      <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: GV.amber,
    display: 'inline-flex', alignItems: 'center', gap: 10,
    ...style,
  }}>
    <span style={{ width: 22, height: 1, background: GV.amber, opacity: 0.85 }} />
    <span>{children}</span>
  </div>
);

/* GV monogram mark */
const GVMark = ({ size = 56, color = GV.ink, accent = GV.amber }) => (
  <svg viewBox="0 0 64 64" width={size} height={size} style={{ display: 'block' }}>
    <rect x="1.5" y="1.5" width="61" height="61" fill="none" stroke={color} strokeOpacity="0.35" strokeWidth="1" />
    {/* G */}
    <path d="M 26 18 Q 14 18 14 32 Q 14 46 26 46 L 34 46 L 34 34 L 26 34"
          fill="none" stroke={color} strokeWidth="4" strokeLinecap="square" />
    {/* V */}
    <path d="M 38 18 L 46 42 L 54 18"
          fill="none" stroke={color} strokeWidth="4" strokeLinecap="square" strokeLinejoin="miter" />
    {/* amber tick */}
    <rect x="30" y="55" width="4" height="4" fill={accent} />
  </svg>
);

/* Wordmark */
const Wordmark = ({ size = 22, color = GV.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 * 0.14,
  }}>
    <span>Great</span><span style={{ fontWeight: 400, opacity: 0.78 }}>Viewer</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({
          ...values,
          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@company.com' },
    { l: 'Message', n: 'message', t: 'area',  r: true, h: 'Your inquiry', 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: GV.amber, 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: GV.amber,
                marginBottom: 10, display: 'flex', justifyContent: 'space-between',
              }}>
                <span>{f.l}</span>
                <span style={{ color: GV.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 ${GV.inkFaint}`, paddingBottom: 12,
                    minHeight: 100, resize: 'vertical',
                    fontFamily: 'Antonio, sans-serif', fontSize: 20,
                    color: GV.ink, lineHeight: 1.3, letterSpacing: 0,
                    outline: 'none', caretColor: GV.amber,
                  }}
                />
              ) : (
                <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 ${GV.inkFaint}`, paddingBottom: 12,
                    fontFamily: 'Antonio, sans-serif', fontSize: 20,
                    color: GV.ink, letterSpacing: 0,
                    outline: 'none', caretColor: GV.amber,
                  }}
                />
              )}
            </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: GV.bg, background: status === 'submitting' ? GV.muted : GV.amber,
            border: 'none', cursor: status === 'submitting' ? 'default' : 'pointer',
            opacity: status === 'submitting' ? 0.7 : 1,
          }}>
            {status === 'submitting' ? 'Sending…' : 'Inquire about GreatViewer.com'}
          </button>
          <div style={{
            marginTop: 18,
            fontFamily: 'IBM Plex Mono, monospace', fontSize: 9.5,
            letterSpacing: 1.6, textTransform: 'uppercase', color: GV.inkLow, lineHeight: 1.7,
          }}>
            Illustrative concept. Domain available for acquisition.
          </div>
        </>
      )}
    </form>
  );
};

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

const Desktop = () => (
  <div style={{
    width: 1440, background: GV.bg, color: GV.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: GV.inkFaint }} />
      <span style={{
        fontFamily: 'IBM Plex Mono, monospace', fontSize: 10,
        letterSpacing: 2.4, textTransform: 'uppercase', color: GV.inkLow,
      }}>Creative Review · Brand Concept</span>
    </div>
    <div style={{ display: 'flex', alignItems: 'center', gap: 40 }}>
      {[['Vision', '#story'], ['Workflow', '#culture'], ['Use Cases', '#manifesto']].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 ? GV.ink : GV.inkDim, textDecoration: 'none',
          display: 'inline-flex', alignItems: 'center', gap: 6,
        }}>
          <span style={{
            color: GV.amber, 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: GV.ink,
        textDecoration: 'none',
        border: `1px solid ${GV.inkFaint}`, padding: '10px 18px',
        display: 'inline-flex', alignItems: 'center', gap: 8,
      }}>
        Domain Inquiry
        <span style={{ width: 5, height: 5, background: GV.amber, borderRadius: 0 }} />
      </a>
    </div>
  </div>
);

const DesktopHero = () => (
  <Plate id="hero" image="media/hero.jpg" imagePos="center" caption="// 01 · creative review · studio · amber overhead" style={{ height: 880 }}>
    <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%)',
    }} />

    <div style={{
      position: 'absolute', top: 110, left: 56,
      fontFamily: 'IBM Plex Mono, monospace', fontSize: 10.5,
      letterSpacing: 2.4, textTransform: 'uppercase', color: GV.inkLow,
    }}>
      N° 001 — Volume One
    </div>
    <div style={{
      position: 'absolute', top: 110, right: 56,
      fontFamily: 'IBM Plex Mono, monospace', fontSize: 10.5,
      letterSpacing: 2.4, textTransform: 'uppercase', color: GV.inkLow,
      textAlign: 'right',
    }}>
      Review / Inspect / Approve
    </div>

    <div style={{
      position: 'absolute', left: 56, bottom: 96, maxWidth: 940,
    }}>
      <div style={{ marginBottom: 28 }}><Eyebrow>Creative Review Platform Concept</Eyebrow></div>
      <h1 style={{
        fontFamily: 'Antonio, sans-serif', fontWeight: 600,
        fontSize: 148, lineHeight: 0.95, letterSpacing: -1.5,
        margin: 0, color: GV.ink,
      }}>
        Great<br />
        <span style={{ color: GV.ink, fontWeight: 400 }}>Viewer</span>
        <span style={{
          fontStyle: 'italic', fontFamily: '"Instrument Serif", serif', fontSize: '0.42em', lineHeight: 1.05,
          color: GV.amber, fontWeight: 500, marginLeft: '0.18em',
        }}>.com</span>
      </h1>
      <p style={{
        marginTop: 64, marginBottom: 0, maxWidth: 560,
        fontSize: 17, lineHeight: 1.55, color: GV.inkDim,
      }}>
        A premium visual review concept for teams that judge creative work frame by frame,
        screen by screen, and detail by detail.
      </p>
      <p style={{
        marginTop: 18, marginBottom: 0, maxWidth: 520,
        fontSize: 14, lineHeight: 1.6, color: GV.inkLow,
        fontFamily: 'IBM Plex Mono, monospace', letterSpacing: 0.5,
      }}>
        Built as an illustrative brand direction for a sharper creative review workspace —
        ideal for video cuts, design mockups, campaign visuals, website previews, and brand assets.
      </p>

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

    <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: GV.inkLow,
      }}>Scroll · 01 of 06</div>
      <div style={{ width: 1, height: 56, background: `linear-gradient(180deg, ${GV.amber}, transparent)` }} />
    </div>
  </Plate>
);

const DesktopStory = () => (
  <div id="story" style={{
    background: GV.bg, padding: '160px 56px 160px',
    display: 'grid', gridTemplateColumns: '560px 1fr', gap: 96,
  }}>
    <Plate image="media/story.jpg" imagePos="center" caption="// 02 · editorial process · visual boards" style={{ height: 720 }} />

    <div style={{ paddingTop: 24, alignSelf: 'start' }}>
      <Eyebrow>02 — The Vision</Eyebrow>
      <h2 style={{
        marginTop: 36, marginBottom: 36, maxWidth: 660,
        fontFamily: 'Antonio, sans-serif', fontWeight: 500,
        fontSize: 72, lineHeight: 0.98, letterSpacing: -0.5,
        color: GV.ink,
      }}>
        Visual decisions need<br />
        better<br />
        <span style={{ fontStyle: 'italic', fontFamily: '"Instrument Serif", serif', fontSize: '0.82em', lineHeight: 1.05, color: GV.amber, fontWeight: 400 }}>rooms.</span>
      </h2>
      <p style={{
        fontSize: 18, lineHeight: 1.6, color: GV.inkDim, maxWidth: 520, margin: 0,
      }}>
        GreatViewer is positioned as a premium review environment for creative teams that need to
        compare, inspect, annotate, and approve visual work without losing context between tools,
        messages, and scattered links.
      </p>

      <div style={{
        marginTop: 64, paddingTop: 36, borderTop: `1px solid ${GV.inkFaint}`,
        display: 'grid', gridTemplateColumns: 'repeat(3, 1fr)', gap: 40, maxWidth: 580,
      }}>
        {[
          { n: 'Video', l: 'Cuts & edits' },
          { n: 'Design', l: 'Mockups & systems' },
          { n: 'Brand',  l: 'Assets & campaigns' },
        ].map(s => (
          <div key={s.l}>
            <div style={{
              fontFamily: 'Antonio, sans-serif', fontWeight: 500,
              fontSize: 36, lineHeight: 1, color: GV.amber,
            }}>{s.n}</div>
            <div style={{
              marginTop: 10,
              fontFamily: 'IBM Plex Mono, monospace', fontSize: 10.5,
              letterSpacing: 1.8, textTransform: 'uppercase', color: GV.inkLow,
            }}>{s.l}</div>
          </div>
        ))}
      </div>
    </div>
  </div>
);

const cultureItems = [
  { n: '01', label: 'Video Review',    mood: 'studio', image: 'media/parts.jpg',   h: 560, blurb: 'Frame-accurate review for cut edits, rough cuts, color grades, and final delivery approvals.', cap: '// video · frame review · cut approval' },
  { n: '02', label: 'Design Mockups',  mood: 'glow',   image: 'media/builds.jpg',  h: 720, blurb: 'Compare, annotate, and sign off on UI designs, layouts, brand systems, and visual identity work.',  cap: '// design · mockup review · layout inspect' },
  { n: '03', label: 'Campaign Visuals',mood: 'amber',  image: 'media/apparel.jpg', h: 720, blurb: 'Review campaign imagery, advertising selects, photography edits, and visual concept directions.',     cap: '// campaign · visual select · art direction' },
  { n: '04', label: 'Brand Assets',    mood: 'review', image: 'media/culture.jpg', h: 560, blurb: 'Inspect logos, color systems, motion marks, brand guidelines, and asset libraries as a team.',       cap: '// brand · asset review · identity check' },
];

const DesktopCulture = () => (
  <div id="culture" style={{ background: GV.bg, padding: '40px 56px 180px' }}>
    <div style={{
      display: 'flex', alignItems: 'flex-end', justifyContent: 'space-between',
      paddingBottom: 56, borderBottom: `1px solid ${GV.inkFaint}`, marginBottom: 64,
    }}>
      <div>
        <Eyebrow>03 — The Workflow</Eyebrow>
        <h2 style={{
          marginTop: 28, marginBottom: 0, maxWidth: 900,
          fontFamily: 'Antonio, sans-serif', fontWeight: 500,
          fontSize: 96, lineHeight: 0.95, letterSpacing: -0.8,
          color: GV.ink,
        }}>
          One name for every kind of<br />
          <span style={{ fontStyle: 'italic', fontFamily: '"Instrument Serif", serif', fontSize: '0.82em', lineHeight: 1.05, fontWeight: 400, color: GV.inkDim }}>visual check.</span>
        </h2>
      </div>
      <div style={{
        fontFamily: 'IBM Plex Mono, monospace', fontSize: 10.5,
        letterSpacing: 2.2, textTransform: 'uppercase', color: GV.inkLow,
        textAlign: 'right', paddingBottom: 12,
      }}>
        Video · Design<br/>Campaign · Brand
      </div>
    </div>

    <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: GV.amber,
              }}>N° {c.n}</span>
              <h3 style={{
                fontFamily: 'Antonio, sans-serif', fontWeight: 500,
                fontSize: 44, lineHeight: 1, letterSpacing: -0.3,
                color: GV.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: GV.inkDim, textDecoration: 'none',
            }}>Inquire →</a>
          </div>
          <p style={{
            marginTop: 14, marginBottom: 0, maxWidth: 440,
            fontSize: 15.5, color: GV.inkDim,
          }}>{c.blurb}</p>
        </div>
      ))}
    </div>
  </div>
);

const DesktopManifesto = () => (
  <Plate id="manifesto" image="media/manifesto.jpg" caption="// 04 · use cases · platform concept" style={{ height: 700 }}>
    <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: GV.amber }}>04 — Use Cases</Eyebrow></div>
      <h2 style={{
        margin: 0, textAlign: 'center',
        fontFamily: 'Antonio, sans-serif', fontWeight: 500,
        fontSize: 128, lineHeight: 0.92, letterSpacing: -1.2,
        color: GV.ink,
      }}>
        Built for a category<br />
        buyers already<br />
        <span style={{ color: GV.amber, fontStyle: 'italic', fontFamily: '"Instrument Serif", serif', fontSize: '0.82em', lineHeight: 1.05, fontWeight: 400 }}>understand.</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: GV.inkLow,
      }}>
        <span style={{ width: 32, height: 1, background: GV.inkFaint }} />
        <span>Creative teams already review everything</span>
        <span style={{ width: 32, height: 1, background: GV.inkFaint }} />
      </div>
    </div>
  </Plate>
);

/* Artifact card */
const Artifact = ({ label, footnote, stitched = false, accentTab = false, children, style = {}, contentStyle = {} }) => (
  <div style={{
    position: 'relative', background: GV.bg,
    border: `1px solid ${GV.inkFaint}`,
    boxShadow: 'inset 0 0 80px rgba(0,0,0,0.55), inset 0 1px 0 rgba(235,229,216,0.04)',
    ...style,
  }}>
    {[
      { 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: GV.amberDim, borderWidth: c.b,
        ...c,
      }} />
    ))}
    {stitched && (
      <div style={{
        position: 'absolute', inset: 18, pointerEvents: 'none',
        border: `1px dashed rgba(184,124,46,0.32)`,
      }} />
    )}
    <div style={{
      position: 'absolute', inset: 0, pointerEvents: 'none',
      backgroundImage: grainSVG, opacity: 0.18, mixBlendMode: 'overlay',
    }} />
    {accentTab && (
      <span style={{
        position: 'absolute', top: -1, left: 32, width: 22, height: 4,
        background: GV.amber,
      }} />
    )}
    <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: GV.inkLow,
        display: 'flex', alignItems: 'center', gap: 10,
      }}>
        <span style={{ width: 10, height: 1, background: GV.amberDim }} />
        {label}
      </div>
      {children}
      {footnote && (
        <div style={{
          fontFamily: 'IBM Plex Mono, monospace', fontSize: 9.5,
          letterSpacing: 2.2, textTransform: 'uppercase', color: GV.inkLow,
        }}>{footnote}</div>
      )}
    </div>
  </div>
);

const platformNotes = [
  { n: '01', t: 'The Frame',     kind: 'frame',    d: 'Every visual decision starts with a moment. GreatViewer gives that moment a clean, precise room.' },
  { n: '02', t: 'The Review',    kind: 'review',   d: 'Compare versions, flag details, surface context. Creative review without the friction of scattered links.' },
  { n: '03', t: 'The Approval',  kind: 'approve',  d: 'Clear sign-off. Clear record. Creative teams know where the work stands at every stage.' },
  { n: '04', t: 'The Context',   kind: 'context',  d: 'Annotation, comment, and reference. Visual feedback grounded in the actual work, not memory.' },
  { n: '05', t: 'The Platform',  kind: 'platform', d: 'GreatViewer.com gives the right buyer a direct, memorable name for a review-first creative workflow.' },
  { n: '06', t: 'The Domain',    kind: 'domain',   d: 'Broad enough for collaboration software. Focused enough for visual work. Available for acquisition.' },
];

const PlatformGlyph = ({ kind, size = 44 }) => {
  const s = size; const cx = s/2; const cy = s/2;
  const stroke = GV.amber; const dim = GV.inkLow;
  switch (kind) {
    case 'frame': // rectangle frame with corner marks
      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={stroke} strokeWidth="1.2" />
          <line x1={s*0.16} y1={s*0.38} x2={s*0.28} y2={s*0.38} stroke={dim} strokeWidth="0.8" />
          <line x1={s*0.72} y1={s*0.38} x2={s*0.84} y2={s*0.38} stroke={dim} strokeWidth="0.8" />
          <circle cx={cx} cy={cy} r="1.8" fill={stroke} />
        </svg>
      );
    case 'review': // magnifier over panel
      return (
        <svg viewBox={`0 0 ${s} ${s}`} width={s} height={s}>
          <rect x={s*0.10} y={s*0.18} width={s*0.65} height={s*0.55} fill="none" stroke={dim} strokeWidth="1" />
          <circle cx={s*0.62} cy={s*0.62} r={s*0.18} fill="none" stroke={stroke} strokeWidth="1.4" />
          <line x1={s*0.74} y1={s*0.74} x2={s*0.86} y2={s*0.86} stroke={stroke} strokeWidth="1.4" />
        </svg>
      );
    case 'approve': // checkmark in panel
      return (
        <svg viewBox={`0 0 ${s} ${s}`} width={s} height={s}>
          <rect x={s*0.12} y={s*0.18} width={s*0.76} height={s*0.64} fill="none" stroke={dim} strokeWidth="1" />
          <path d={`M ${s*0.30} ${cy} L ${s*0.44} ${s*0.66} L ${s*0.70} ${s*0.36}`} fill="none" stroke={stroke} strokeWidth="1.6" strokeLinecap="square" />
        </svg>
      );
    case 'context': // annotation pin
      return (
        <svg viewBox={`0 0 ${s} ${s}`} width={s} height={s}>
          <line x1={s*0.14} y1={s*0.36} x2={s*0.86} y2={s*0.36} stroke={dim} strokeWidth="0.8" />
          <line x1={s*0.14} y1={s*0.50} x2={s*0.70} y2={s*0.50} stroke={dim} strokeWidth="0.8" />
          <line x1={s*0.14} y1={s*0.64} x2={s*0.55} y2={s*0.64} stroke={dim} strokeWidth="0.8" />
          <circle cx={s*0.78} cy={s*0.64} r={s*0.09} fill={stroke} opacity="0.8" />
          <line x1={s*0.78} y1={s*0.73} x2={s*0.78} y2={s*0.84} stroke={stroke} strokeWidth="1" />
        </svg>
      );
    case 'platform': // layered panels
      return (
        <svg viewBox={`0 0 ${s} ${s}`} width={s} height={s}>
          <rect x={s*0.22} y={s*0.52} width={s*0.58} height={s*0.30} fill="none" stroke={dim} strokeWidth="0.8" />
          <rect x={s*0.18} y={s*0.40} width={s*0.58} height={s*0.30} fill="none" stroke={dim} strokeWidth="0.8" opacity="0.7" />
          <rect x={s*0.14} y={s*0.28} width={s*0.58} height={s*0.30} fill="none" stroke={stroke} strokeWidth="1.2" />
        </svg>
      );
    case 'domain': // globe-like arc
      return (
        <svg viewBox={`0 0 ${s} ${s}`} width={s} height={s}>
          <circle cx={cx} cy={cy} r={s*0.34} fill="none" stroke={dim} strokeWidth="1" />
          <ellipse cx={cx} cy={cy} rx={s*0.16} ry={s*0.34} fill="none" stroke={stroke} strokeWidth="1.2" />
          <line x1={s*0.16} y1={cy} x2={s*0.84} y2={cy} stroke={dim} strokeWidth="0.8" />
          <circle cx={cx} cy={cy} r="2.2" fill={stroke} />
        </svg>
      );
    default:
      return <svg viewBox={`0 0 ${s} ${s}`} width={s} height={s} />;
  }
};

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

    <div style={{ position: 'relative', display: 'flex', alignItems: 'flex-end', justifyContent: 'space-between', marginBottom: 72, gap: 60 }}>
      <div>
        <Eyebrow>05 — The Domain</Eyebrow>
        <h2 style={{
          marginTop: 28, marginBottom: 0,
          fontFamily: 'Antonio, sans-serif', fontWeight: 500,
          fontSize: 80, lineHeight: 0.96, letterSpacing: -0.6,
          color: GV.ink,
        }}>
          A polished foundation for<br/>
          <span style={{ fontStyle: 'italic', fontFamily: '"Instrument Serif", serif', fontSize: '0.82em', lineHeight: 1.05, color: GV.amber, fontWeight: 400 }}>a serious visual platform.</span>
        </h2>
      </div>
      <div style={{
        maxWidth: 420,
        fontSize: 15.5, lineHeight: 1.65, color: GV.inkDim, paddingBottom: 12,
      }}>
        The name is simple, descriptive, and flexible. It can support a visual QA product,
        media review suite, client proofing tool, agency portal, asset approval system,
        or product visualization workspace.
      </div>
    </div>

    <div style={{
      position: 'relative', marginTop: 24,
      display: 'grid', gridTemplateColumns: 'repeat(3, 1fr)', gap: 24,
    }}>
      {platformNotes.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,
          }}>
            <PlatformGlyph kind={m.kind} size={44} />
            <h3 style={{
              margin: 0, whiteSpace: 'nowrap',
              fontFamily: 'Antonio, sans-serif', fontWeight: 500,
              fontSize: 30, letterSpacing: 0.2, color: GV.ink,
            }}>{m.t}</h3>
          </div>
          <p style={{
            margin: 0, marginTop: 18,
            fontSize: 14.5, lineHeight: 1.55, color: GV.inkDim,
          }}>{m.d}</p>
        </Artifact>
      ))}
    </div>

    <div style={{
      position: 'relative', marginTop: 64, paddingTop: 28,
      borderTop: `1px solid ${GV.inkFaint}`,
      display: 'flex', alignItems: 'center', justifyContent: 'space-between',
      fontFamily: 'IBM Plex Mono, monospace', fontSize: 10.5,
      letterSpacing: 2.4, textTransform: 'uppercase', color: GV.inkLow,
    }}>
      <span>Video cuts · Design mockups · Campaign visuals · Brand assets</span>
      <span>Review · Inspect · Annotate · Approve</span>
      <span style={{ color: GV.amber }}>Great name · Clear purpose · Premium position</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@company.com' },
  ];
  return (
    <div id="inquiry" style={{
      background: GV.bg, padding: '180px 56px',
      display: 'grid', gridTemplateColumns: '1fr 1fr', gap: 96,
    }}>
      <div>
        <Eyebrow>06 — 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: GV.ink,
        }}>
          Acquire<br/>
          <span style={{ fontStyle: 'italic', fontFamily: '"Instrument Serif", serif', fontSize: '0.82em', lineHeight: 1.05, color: GV.amber, fontWeight: 400 }}>GreatViewer.com</span>
        </h2>
        <p style={{ maxWidth: 440, fontSize: 16, lineHeight: 1.6, color: GV.inkDim, margin: 0 }}>
          GreatViewer.com is available for acquisition. This page presents an illustrative brand concept
          showing one possible direction for the domain as a premium visual review platform.
          It is not presented as an active software product or operating company.
        </p>
        <p style={{ maxWidth: 440, fontSize: 15, lineHeight: 1.6, color: GV.inkDim, margin: '16px 0 0' }}>
          Send a direct inquiry about <span style={{ color: GV.ink }}>GreatViewer.com</span>.
        </p>
        <div style={{
          marginTop: 72, paddingTop: 32, borderTop: `1px solid ${GV.inkFaint}`,
          display: 'grid', gridTemplateColumns: '1fr 1fr 1fr', gap: 24, maxWidth: 520,
        }}>
          {[
            { l: 'Domain',    v: 'GreatViewer.com' },
            { l: 'Direction', v: 'Creative review platform' },
            { 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: GV.amber,
                display: 'flex', alignItems: 'center', gap: 8,
              }}>
                <span style={{ width: 8, height: 1, background: GV.amberDim }} />
                {b.l}
              </div>
              <div style={{
                marginTop: 12,
                fontFamily: 'Antonio, sans-serif', fontSize: 22, color: GV.ink, lineHeight: 1.2,
              }}>
                {b.v}
              </div>
            </div>
          ))}
        </div>

        <div style={{
          marginTop: 40, maxWidth: 460,
          display: 'flex', gap: 14, alignItems: 'flex-start',
          paddingTop: 18, borderTop: `1px dashed ${GV.inkFaint}`,
        }}>
          <span style={{
            marginTop: 4, width: 6, height: 6, background: GV.amber, flexShrink: 0,
          }} />
          <div style={{
            fontFamily: 'IBM Plex Mono, monospace', fontSize: 10.5,
            letterSpacing: 1.6, textTransform: 'uppercase', color: GV.inkLow, lineHeight: 1.7,
          }}>
            Illustrative concept only. No active product, customer base, or revenue implied.
          </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: GV.amber, 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: GV.amber,
                  marginBottom: 12, display: 'flex', justifyContent: 'space-between',
                }}>
                  <span>{f.label}</span>
                  <span style={{ color: GV.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 ${GV.inkFaint}`,
                    paddingBottom: 14,
                    fontFamily: 'Antonio, sans-serif', fontSize: 26,
                    color: GV.ink, letterSpacing: 0.2,
                    outline: 'none', caretColor: GV.amber,
                  }}
                />
              </div>
            ))}
            <div style={{ marginBottom: 44 }}>
              <div style={{
                fontFamily: 'IBM Plex Mono, monospace', fontSize: 10,
                letterSpacing: 2.2, textTransform: 'uppercase', color: GV.amber,
                marginBottom: 12, display: 'flex', justifyContent: 'space-between',
              }}>
                <span>Message</span>
                <span style={{ color: GV.inkLow }}>Your inquiry</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 ${GV.inkFaint}`,
                  paddingBottom: 14, minHeight: 140, resize: 'vertical',
                  fontFamily: 'Antonio, sans-serif', fontSize: 26,
                  color: GV.ink, letterSpacing: 0.2,
                  outline: 'none', caretColor: GV.amber,
                }}
              />
            </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: GV.bg, background: status === 'submitting' ? GV.muted : GV.amber,
                  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…' : 'Inquire about GreatViewer.com'}
                <span style={{ width: 22, height: 1, background: GV.bg, display: 'inline-block' }} />
              </button>
              <div style={{
                fontFamily: 'IBM Plex Mono, monospace', fontSize: 10,
                letterSpacing: 1.8, textTransform: 'uppercase', color: GV.inkLow,
                textAlign: 'right', lineHeight: 1.6, maxWidth: 220,
              }}>
                Illustrative concept.<br/>Domain available for acquisition.
              </div>
            </div>
          </>
        )}
      </form>
    </div>
  );
};

const DesktopFooter = () => (
  <div id="footer" style={{
    background: GV.panel, padding: '64px 56px 48px',
    borderTop: `1px solid ${GV.inkFaint}`,
  }}>
    <div style={{
      display: 'grid', gridTemplateColumns: '1.1fr 1fr 1fr 1fr', gap: 56,
      paddingBottom: 56,
    }}>
      <div>
        <div style={{ display: 'flex', alignItems: 'center', gap: 22 }}>
          <GVMark size={48} />
          <div>
            <div style={{
              fontFamily: 'Antonio, sans-serif', fontWeight: 600, fontSize: 28,
              color: GV.ink, lineHeight: 1, letterSpacing: 0.4,
            }}>Great<span style={{ fontWeight: 400, opacity: 0.78 }}>Viewer</span></div>
            <div style={{
              marginTop: 8,
              fontFamily: 'IBM Plex Mono, monospace', fontSize: 10,
              letterSpacing: 2.2, textTransform: 'uppercase', color: GV.amber,
            }}>Review visual work with sharper context.</div>
          </div>
        </div>
        <p style={{
          marginTop: 28, marginBottom: 0, maxWidth: 320,
          fontFamily: 'IBM Plex Mono, monospace', fontSize: 10.5,
          letterSpacing: 1.6, textTransform: 'uppercase', color: GV.inkLow, lineHeight: 1.7,
        }}>
          GreatViewer.com is an illustrative brand concept created for domain acquisition purposes.
          It does not represent an active software product, customer base, revenue claim, or operating company.
        </p>
      </div>
      {[
        { h: 'Concept', l: [
          { t: 'Vision',         href: '#story' },
          { t: 'Workflow',       href: '#culture' },
          { t: 'Use Cases',      href: '#manifesto' },
        ]},
        { h: 'Domain', l: [
          { t: 'GreatViewer.com',     href: '#inquiry' },
          { t: 'Acquisition Inquiry', href: '#inquiry' },
          { t: 'Contact',             href: '#inquiry' },
        ]},
        { h: 'Note', l: [
          { t: 'Illustrative Concept',    href: null },
          { t: 'Domain Acquisition Only', href: null },
        ]},
      ].map(g => (
        <div key={g.h}>
          <div style={{
            fontFamily: 'IBM Plex Mono, monospace', fontSize: 10,
            letterSpacing: 2.2, textTransform: 'uppercase', color: GV.inkLow,
            marginBottom: 18, display: 'flex', alignItems: 'center', gap: 8,
          }}>
            <span style={{ width: 8, height: 1, background: GV.amberDim }} />
            {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: GV.ink,
                letterSpacing: 0.2, textDecoration: 'none', lineHeight: 1.15,
              }}>{x.t}</a>
            ))}
          </div>
        </div>
      ))}
    </div>
    <div style={{
      paddingTop: 28, borderTop: `1px solid ${GV.inkFaint}`,
      display: 'flex', alignItems: 'center', justifyContent: 'space-between',
      fontFamily: 'IBM Plex Mono, monospace', fontSize: 10,
      letterSpacing: 2, textTransform: 'uppercase', color: GV.inkLow,
    }}>
      <span>© MMXXVI · GreatViewer.com · Illustrative brand concept</span>
      <span>Independently owned · Available for acquisition</span>
      <span style={{ color: GV.amber }}>Volume One — 001</span>
    </div>
  </div>
);

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

const Mobile = () => (
  <div style={{
    width: 390, background: GV.bg, color: GV.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: GV.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: GV.ink }} />
        <span style={{ width: 16, height: 1, background: GV.ink, alignSelf: 'flex-end' }} />
      </div>
    </div>

    {/* hero */}
    <Plate id="m-hero" image="media/hero.jpg" imagePos="center" caption="// 01 · creative review · amber" 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>Creative Review Platform Concept</Eyebrow></div>
        <h1 style={{
          fontFamily: 'Antonio, sans-serif', fontWeight: 600,
          fontSize: 64, lineHeight: 0.9, letterSpacing: -0.6,
          margin: 0, color: GV.ink,
        }}>
          Great<br/>
          <span style={{ fontStyle: 'italic', fontFamily: '"Instrument Serif", serif', fontSize: '0.82em', lineHeight: 1.05, color: GV.amber, fontWeight: 500 }}>Viewer.com</span>
        </h1>
        <p style={{ marginTop: 36, color: GV.inkDim, fontSize: 14, lineHeight: 1.55 }}>
          A premium visual review concept for teams that judge creative work frame by frame, screen by screen.
        </p>
        <a href="#story" 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: GV.bg, background: GV.amber, textDecoration: 'none',
        }}>
          Explore the Concept
          <span style={{ width: 16, height: 1, background: GV.bg }} />
        </a>
      </div>
    </Plate>

    {/* story */}
    <div id="m-story" style={{ padding: '88px 22px 64px' }}>
      <Eyebrow>02 — The Vision</Eyebrow>
      <h2 style={{
        marginTop: 22, marginBottom: 20,
        fontFamily: 'Antonio, sans-serif', fontWeight: 500,
        fontSize: 44, lineHeight: 0.98, letterSpacing: -0.3,
        color: GV.ink,
      }}>
        Visual decisions need better <span style={{ fontStyle: 'italic', fontFamily: '"Instrument Serif", serif', fontSize: '0.82em', lineHeight: 1.05, color: GV.amber, fontWeight: 400 }}>rooms.</span>
      </h2>
      <p style={{ color: GV.inkDim, fontSize: 14.5, lineHeight: 1.6 }}>
        GreatViewer is positioned as a premium review environment for creative teams that need to
        compare, inspect, annotate, and approve visual work without losing context.
      </p>
      <Plate image="media/story.jpg" caption="// 02 · editorial process · visual boards" style={{ height: 320, marginTop: 32 }} />
    </div>

    {/* culture */}
    <div id="m-culture" style={{ padding: '0 22px 64px' }}>
      <Eyebrow>03 — The Workflow</Eyebrow>
      <h2 style={{
        marginTop: 22, marginBottom: 32,
        fontFamily: 'Antonio, sans-serif', fontWeight: 500,
        fontSize: 52, lineHeight: 0.95, letterSpacing: -0.4,
        color: GV.ink,
      }}>
        One name for every kind of <span style={{ fontStyle: 'italic', fontFamily: '"Instrument Serif", serif', fontSize: '0.82em', lineHeight: 1.05, color: GV.inkDim, fontWeight: 400 }}>visual check.</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: GV.amber,
              }}>N° {c.n}</span>
              <h3 style={{
                fontFamily: 'Antonio, sans-serif', fontWeight: 500,
                fontSize: 32, lineHeight: 1, color: GV.ink, margin: 0,
              }}>{c.label}</h3>
            </div>
            <p style={{ marginTop: 8, color: GV.inkDim, fontSize: 14 }}>{c.blurb}</p>
          </div>
        ))}
      </div>
    </div>

    {/* manifesto */}
    <Plate id="m-manifesto" image="media/manifesto.jpg" caption="// 04 · use cases" 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>04 — Use Cases</Eyebrow></div>
        <h2 style={{
          margin: 0, textAlign: 'center',
          fontFamily: 'Antonio, sans-serif', fontWeight: 500,
          fontSize: 56, lineHeight: 0.92, letterSpacing: -0.4,
          color: GV.ink,
        }}>
          Built for a<br/>
          category buyers<br/>
          <span style={{ color: GV.amber, fontStyle: 'italic', fontFamily: '"Instrument Serif", serif', fontSize: '0.82em', lineHeight: 1.05, fontWeight: 400 }}>understand.</span>
        </h2>
      </div>
    </Plate>

    {/* identity / platform */}
    <div id="m-presence" style={{ background: GV.panel, padding: '64px 22px' }}>
      <Eyebrow>05 — The Domain</Eyebrow>
      <h2 style={{
        marginTop: 22, marginBottom: 16,
        fontFamily: 'Antonio, sans-serif', fontWeight: 500,
        fontSize: 40, lineHeight: 0.96, letterSpacing: -0.3,
        color: GV.ink,
      }}>
        A polished foundation for<br/>
        <span style={{ fontStyle: 'italic', fontFamily: '"Instrument Serif", serif', fontSize: '0.82em', lineHeight: 1.05, color: GV.amber, fontWeight: 400 }}>a serious visual platform.</span>
      </h2>
      <p style={{ color: GV.inkDim, fontSize: 13.5, lineHeight: 1.6, marginBottom: 28 }}>
        Simple, descriptive, and flexible. GreatViewer.com can support a visual QA product,
        media review suite, client proofing tool, or asset approval system.
      </p>
      <div style={{ display: 'grid', gridTemplateColumns: '1fr 1fr', gap: 10 }}>
        {platformNotes.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 }}>
              <PlatformGlyph kind={m.kind} size={32} />
              <h3 style={{
                margin: 0, whiteSpace: 'nowrap',
                fontFamily: 'Antonio, sans-serif', fontWeight: 500,
                fontSize: 20, letterSpacing: 0.2, color: GV.ink,
              }}>{m.t}</h3>
            </div>
            <p style={{
              margin: 0, marginTop: 12,
              fontSize: 12.5, lineHeight: 1.5, color: GV.inkDim,
            }}>{m.d}</p>
          </Artifact>
        ))}
      </div>

      <div style={{
        marginTop: 18, padding: '18px 18px',
        border: `1px solid ${GV.inkFaint}`, background: GV.bg,
        display: 'grid', gap: 10,
      }}>
        <div style={{
          fontFamily: 'IBM Plex Mono, monospace', fontSize: 9,
          letterSpacing: 2, textTransform: 'uppercase', color: GV.inkLow, lineHeight: 1.7,
        }}>Video cuts · Design mockups<br/>Campaign visuals · Brand assets</div>
        <div style={{
          fontFamily: 'IBM Plex Mono, monospace', fontSize: 9.5,
          letterSpacing: 2, textTransform: 'uppercase', color: GV.amber,
        }}>Great name · Clear purpose · Premium position</div>
      </div>
    </div>

    {/* contact */}
    <div id="m-inquiry" style={{ padding: '64px 22px' }}>
      <Eyebrow>06 — Inquire</Eyebrow>
      <h2 style={{
        marginTop: 22, marginBottom: 20,
        fontFamily: 'Antonio, sans-serif', fontWeight: 500,
        fontSize: 56, lineHeight: 0.95, letterSpacing: -0.5,
        color: GV.ink,
      }}>
        Acquire<br/>
        <span style={{ fontStyle: 'italic', fontFamily: '"Instrument Serif", serif', fontSize: '0.82em', lineHeight: 1.05, color: GV.amber, fontWeight: 400 }}>GreatViewer.com</span>
      </h2>
      <p style={{ color: GV.inkDim, fontSize: 13.5, lineHeight: 1.6 }}>
        GreatViewer.com is available for acquisition. This page presents an illustrative brand concept —
        not an active software product or operating company.
      </p>

      <div style={{
        marginTop: 32, paddingTop: 22, borderTop: `1px solid ${GV.inkFaint}`,
        display: 'grid', gap: 18,
      }}>
        {[
          { l: 'Domain',    v: 'GreatViewer.com' },
          { l: 'Direction', v: 'Creative review platform' },
          { 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: GV.amber,
            }}>{b.l}</div>
            <div style={{
              marginTop: 4,
              fontFamily: 'Antonio, sans-serif', fontSize: 20, color: GV.ink, lineHeight: 1.2,
            }}>{b.v}</div>
          </div>
        ))}
      </div>

      <MobileContactForm />
    </div>

    {/* footer */}
    <div id="m-footer" style={{ background: GV.panel, padding: '36px 22px 32px', borderTop: `1px solid ${GV.inkFaint}` }}>
      <div style={{ display: 'flex', alignItems: 'center', gap: 14 }}>
        <GVMark size={36} />
        <div>
          <div style={{ fontFamily: 'Antonio, sans-serif', fontWeight: 600, fontSize: 22, color: GV.ink, lineHeight: 1 }}>Great<span style={{ fontWeight: 400, opacity: 0.78 }}>Viewer</span></div>
          <div style={{ marginTop: 6, fontFamily: 'IBM Plex Mono, monospace', fontSize: 9, letterSpacing: 2, textTransform: 'uppercase', color: GV.amber }}>Review visual work with sharper context.</div>
        </div>
      </div>
      <p style={{
        marginTop: 22, marginBottom: 0,
        fontFamily: 'IBM Plex Mono, monospace', fontSize: 9.5,
        letterSpacing: 1.5, textTransform: 'uppercase', color: GV.inkLow, lineHeight: 1.7,
      }}>
        GreatViewer.com is an illustrative brand concept created for domain acquisition purposes.
        It does not represent an active software product, customer base, revenue claim, or operating company.
      </p>
      <div style={{
        marginTop: 28, display: 'grid', gridTemplateColumns: '1fr 1fr', gap: 24,
      }}>
        {[
          { h: 'Concept', l: [
            { t: 'Vision',    href: '#story' },
            { t: 'Workflow',  href: '#culture' },
            { t: 'Use Cases', href: '#manifesto' },
          ]},
          { h: 'Domain', l: [
            { t: 'GreatViewer.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: GV.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: GV.ink,
                  letterSpacing: 0.2, lineHeight: 1.2, textDecoration: 'none',
                }}>{x.t}</a>
              ))}
            </div>
          </div>
        ))}
      </div>
      <div style={{
        marginTop: 24, paddingTop: 16, borderTop: `1px solid ${GV.inkFaint}`,
        fontFamily: 'IBM Plex Mono, monospace', fontSize: 9,
        letterSpacing: 2, textTransform: 'uppercase', color: GV.inkLow, lineHeight: 1.8,
      }}>
        © MMXXVI · GreatViewer.com<br/>Illustrative concept · Domain available for acquisition<br/>
        <span style={{ color: GV.amber }}>Volume One — 001</span>
      </div>
    </div>
  </div>
);

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