/* ===== Tokens ===== */
:root {
  --bg: #000;
  --panel: #0e0e0e;
  --panel-2: #141414;
  --line: rgba(255, 255, 255, 0.1);
  --line-strong: rgba(255, 255, 255, 0.2);
  --text: #fff;
  --muted: #8d8d8d;
  --dim: #5c5c5c;
  --wood-light: #f0e4cd;
  --wood: #e6cbaa;
  --wood-dark: #d4a87a;
  --success: #a6d9a8;
  --error: #f0a08f;
  /* theme-dependent tokens (dark default) */
  --soft: #d4d4d4;
  --well: #000;
  --ink: #fff;
  --hatch: rgba(255, 255, 255, 0.7);
  --placeholder: #555;
  --header-bg: rgba(0, 0, 0, 0.75);
  --btn-solid-bg: #fff;
  --btn-solid-fg: #000;
  --btn-solid-hover: var(--wood-light);
  --btn-solid-hover-fg: #000;
  --btn-alt-bg: #1c1c1c;
  --btn-alt-hover: #2a2a2a;
  --btn-alt-fg: #fff;
  --accent: var(--wood);
  --accent-strong: var(--wood-dark);
  --accent-text: linear-gradient(90deg, var(--wood-light), var(--wood-dark));
  --ring-core: #000;
  --ring-edge: rgba(0, 0, 0, 0.6);
  --beam: linear-gradient(to top, rgba(255, 248, 236, 0.95), rgba(230, 203, 170, 0.6) 35%, rgba(212, 168, 122, 0) 100%);
  --logo-filter: none;
  color-scheme: dark;
  --font: "Geist", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: "Geist Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --container: 1280px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 88px; }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  font-weight: 300;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
h1, h2, h3 { font-weight: 300; line-height: 1.1; letter-spacing: -0.03em; margin: 0 0 0.5em; }
h2 { font-size: clamp(30px, 3.6vw, 44px); }
p { margin: 0 0 1em; }
.muted { color: var(--muted); }
.accent {
  background: var(--accent-text);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 40px; }

.skip-link { position: absolute; left: 16px; top: -60px; z-index: 100; background: var(--btn-solid-bg); color: var(--btn-solid-fg); padding: 10px 16px; }
.skip-link:focus { top: 16px; }
:focus-visible { outline: 1px solid var(--accent); outline-offset: 3px; }

/* Mono label with dot */
.label {
  display: inline-flex; align-items: center; gap: 10px;
  font: 400 12px/1 var(--mono); letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--text); margin-bottom: 20px;
}
.dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent-strong); box-shadow: 0 0 10px var(--wood-dark); }

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  height: 44px; padding: 0 26px; border: 0; border-radius: 2px; cursor: pointer;
  font: 400 15px/1 var(--font); transition: background 0.2s, color 0.2s, opacity 0.2s;
}
.btn-light { background: var(--btn-solid-bg); color: var(--btn-solid-fg); }
.btn-light:hover { background: var(--btn-solid-hover); color: var(--btn-solid-hover-fg); }
.btn-dark { background: var(--btn-alt-bg); color: var(--btn-alt-fg); }
.btn-dark:hover { background: var(--btn-alt-hover); }
.btn-small { height: 36px; padding: 0 22px; }
.btn-block { width: 100%; }
.btn:disabled { opacity: 0.6; cursor: wait; }

/* ===== Header ===== */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: var(--header-bg);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent; transition: border-color 0.2s;
}
.site-header.scrolled { border-bottom-color: var(--line); }
.nav { display: flex; align-items: center; gap: 24px; height: 80px; }
.nav-actions { display: flex; align-items: center; gap: 4px; }
.theme-toggle {
  display: grid; place-items: center; width: 36px; height: 36px; padding: 0; cursor: pointer;
  background: transparent; color: var(--soft); border: 1px solid var(--line-strong); border-radius: 2px;
  transition: color 0.2s, border-color 0.2s;
}
.theme-toggle:hover { color: var(--accent); border-color: var(--accent); }
.theme-toggle svg { width: 18px; height: 18px; }
.theme-toggle .icon-sun { display: none; }
.theme-toggle[data-current="dark"] .icon-sun { display: block; }
.theme-toggle[data-current="dark"] .icon-moon { display: none; }
.logo { display: inline-flex; align-items: center; gap: 12px; font-weight: 500; font-size: 19px; letter-spacing: -0.02em; }
.logo-mark { height: 34px; width: auto; filter: var(--logo-filter); }
.logo-light { font-weight: 300; }
.nav-links { display: flex; align-items: center; gap: 36px; list-style: none; margin: 0 0 0 auto; padding: 0; }
.nav-links a:not(.btn) { font-size: 15px; font-weight: 400; color: var(--soft); transition: color 0.2s; }
.nav-links a:not(.btn):hover { color: var(--accent); }
.nav-toggle { display: none; background: none; border: 0; padding: 10px; cursor: pointer; }
.nav-toggle span { display: block; width: 22px; height: 1.5px; margin: 6px 0; background: var(--ink); transition: transform 0.25s; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(3.75px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { transform: translateY(-3.75px) rotate(-45deg); }

/* ===== Hero ===== */
.hero { padding: 40px 0 0; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 40px; min-height: calc(100vh - 120px); max-height: 820px; }
.hero h1 { font-size: clamp(42px, 5.4vw, 72px); max-width: 12ch; }
.lead { font-size: 18px; color: var(--muted); max-width: 520px; margin-bottom: 36px; }
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; }

.hero-visual { position: relative; height: 100%; min-height: 520px; display: grid; place-items: center; }
.hv-grid {
  position: absolute; inset: 0;
  background-image: linear-gradient(rgba(212, 168, 122, 0.14) 1px, transparent 1px), linear-gradient(90deg, rgba(212, 168, 122, 0.14) 1px, transparent 1px);
  background-size: 22px 22px;
  mask-image: radial-gradient(circle at 50% 50%, #000 0%, transparent 62%);
  -webkit-mask-image: radial-gradient(circle at 50% 50%, #000 0%, transparent 62%);
}
.hv-glow {
  position: absolute; width: 70%; aspect-ratio: 1; border-radius: 50%;
  background: radial-gradient(circle, rgba(212, 168, 122, var(--glow-a, 0.35)) 0%, rgba(212, 168, 122, 0.08) 45%, transparent 70%);
  filter: blur(10px);
}
.hv-beam {
  position: absolute; left: 50%; bottom: 0; width: 26%; height: 42%; transform: translateX(-50%);
  background: var(--beam);
  filter: blur(22px); border-radius: 50% 50% 0 0;
}
.hv-ring {
  position: absolute; width: 58%; aspect-ratio: 1; border-radius: 50%;
  border: 1px solid rgba(240, 228, 205, 0.35);
  box-shadow: 0 0 60px rgba(212, 168, 122, 0.35), inset 0 0 60px rgba(212, 168, 122, 0.2);
  background: radial-gradient(circle, var(--ring-core) 55%, var(--ring-edge) 100%);
}
.hv-logo { position: relative; width: 30%; height: auto; filter: drop-shadow(0 0 30px rgba(212, 168, 122, 0.45)); animation: float 6s ease-in-out infinite; }
@keyframes float { 50% { transform: translateY(-10px); } }

/* ===== Sections ===== */
.section { padding: 120px 0; }
.section-head { max-width: 640px; margin-bottom: 56px; }
.section-head p:last-child { margin: 0; }

/* ===== Cards ===== */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.card { background: var(--panel); border: 1px solid var(--line); padding: 0 28px 32px; transition: border-color 0.25s; }
.card:hover { border-color: rgba(212, 168, 122, 0.45); }
.card-art {
  margin: 0 -28px 28px; height: 210px; display: grid; place-items: center; color: var(--accent);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(circle at 50% 55%, rgba(212, 168, 122, 0.12), transparent 60%),
    linear-gradient(var(--line) 1px, transparent 1px) 0 0 / 24px 24px,
    linear-gradient(90deg, var(--line) 1px, transparent 1px) 0 0 / 24px 24px;
}
.card-art svg { width: 62%; opacity: 0.9; transition: transform 0.4s ease; }
.card:hover .card-art svg { transform: scale(1.04); }
.card h3 { font-size: 22px; font-weight: 400; margin-bottom: 8px; }
.card-tag { font: 400 11px/1.4 var(--mono); text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 14px; }
.card > p:not(.card-tag) { color: var(--muted); font-size: 15px; }
.ticks { list-style: none; padding: 0; margin: 20px 0 0; display: grid; gap: 8px; }
.ticks li { position: relative; padding-left: 22px; font-size: 14px; color: var(--soft); }
.ticks li::before { content: "+"; position: absolute; left: 0; top: -1px; font-family: var(--mono); color: var(--accent-strong); }

/* ===== Statement ===== */
.statement-section { padding: 80px 0; }
.statement { font-size: clamp(24px, 2.9vw, 38px); line-height: 1.32; letter-spacing: -0.02em; color: var(--dim); max-width: 1100px; margin: 0; }
.statement .hi { color: var(--text); }

/* ===== Results panel ===== */
.panel { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; padding: 8px; background: var(--panel-2); border: 1px solid var(--line); }
.panel-copy { padding: 40px; }
.mono-list { list-style: none; padding: 0; margin: 28px 0 36px; display: grid; gap: 14px; font: 400 13px/1.4 var(--mono); text-transform: uppercase; letter-spacing: 0.04em; }
.mono-list li { display: flex; gap: 14px; padding-bottom: 14px; border-bottom: 1px solid var(--line); }
.mono-list span { color: var(--accent-strong); }

.chart { margin: 0; background: var(--well); border: 1px solid var(--line); padding: 32px; display: flex; flex-direction: column; }
.chart-legend { display: flex; align-items: center; gap: 8px; font: 400 11px/1 var(--mono); text-transform: uppercase; color: var(--muted); }
.key { width: 12px; height: 12px; border: 1px solid var(--ink); }
.key-old { background: repeating-linear-gradient(135deg, var(--ink) 0 1px, transparent 1px 5px); }
.key-new { margin-left: 10px; background: var(--wood); border-color: var(--accent); }
.chart-plot {
  flex: 1; min-height: 300px; margin-top: 24px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 0 10%; align-items: end;
  padding: 0 6% 0; border-bottom: 1px solid var(--line-strong);
  background:
    linear-gradient(var(--line) 1px, transparent 1px) 0 0 / 100% 20%,
    linear-gradient(90deg, var(--line) 1px, transparent 1px) 0 0 / 10% 100%;
}
.bar-group { position: relative; height: 100%; display: flex; align-items: flex-end; gap: 6px; }
.bar { position: relative; flex: 1; height: var(--h); border: 1px solid var(--ink); border-bottom: 0; transform-origin: bottom; transition: transform 1s cubic-bezier(.2,.7,.2,1); }
.bar b { position: absolute; top: -20px; left: 0; right: 0; text-align: center; font: 400 10px/1 var(--mono); text-transform: uppercase; color: var(--muted); }
.bar-old { background: repeating-linear-gradient(135deg, var(--hatch) 0 1px, transparent 1px 7px); }
.bar-new { background: linear-gradient(to top, var(--wood-dark), var(--wood-light)); border-color: var(--accent); }
.bar-label { position: absolute; bottom: -30px; left: 0; right: 0; text-align: center; font: 400 11px/1 var(--mono); text-transform: uppercase; color: var(--muted); }
.chart figcaption { margin-top: 44px; font: 400 10px/1 var(--mono); text-transform: uppercase; letter-spacing: 0.06em; color: var(--dim); text-align: right; }
.reveal:not(.visible) .bar { transform: scaleY(0); }
.reveal .bar-group:nth-child(2) .bar { transition-delay: 0.1s; }
.reveal .bar-group:nth-child(3) .bar { transition-delay: 0.2s; }

/* ===== Steps ===== */
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--line); }
.step { padding: 32px 28px 40px; border-right: 1px solid var(--line); transition: background 0.25s; }
.step:last-child { border-right: 0; }
.step:hover { background: var(--panel); }
.step-num { display: block; font: 400 13px/1 var(--mono); text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 56px; }
.step-num::first-letter { color: var(--accent-strong); }
.step p { margin: 0; color: var(--muted); font-size: 15px; }

/* ===== About ===== */
.about { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 80px; align-items: start; }
.about-copy p { max-width: 560px; font-size: 17px; }
.tools { border: 1px solid var(--line); background: var(--panel); padding: 32px; }
.tools-head { font: 400 12px/1 var(--mono); text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 24px; }
.tool-list { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.tool-list li { padding: 8px 12px; border: 1px solid var(--line-strong); font: 400 12px/1 var(--mono); color: var(--soft); transition: border-color 0.2s, color 0.2s; }
.tool-list li:hover { border-color: var(--accent); color: var(--accent); }

/* ===== Contact ===== */
.contact-section { position: relative; padding: 120px 0; overflow: hidden; }
.horizon {
  position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--wood-dark) 30%, var(--wood-light) 50%, var(--wood-dark) 70%, transparent);
}
.horizon::after {
  content: ""; position: absolute; left: 10%; right: 10%; top: 0; height: 260px;
  background: radial-gradient(ellipse 50% 100% at 50% 0%, rgba(212, 168, 122, 0.22), transparent 70%);
}
.contact { position: relative; display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: start; }
.contact h2 { font-size: clamp(30px, 3.4vw, 42px); }
.dim { color: var(--muted); }
.contact-list { list-style: none; padding: 0; margin: 36px 0 0; border-top: 1px solid var(--line); }
.contact-list li { display: flex; gap: 24px; padding: 16px 0; border-bottom: 1px solid var(--line); font-size: 15px; }
.contact-key { width: 60px; flex-shrink: 0; font: 400 12px/1.9 var(--mono); text-transform: uppercase; color: var(--muted); }
.contact-list a { border-bottom: 1px solid var(--line-strong); word-break: break-all; }
.contact-list a:hover { color: var(--accent); border-color: var(--accent); }

.contact-form { background: var(--panel); border: 1px solid var(--line); padding: 32px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field { display: flex; flex-direction: column; gap: 8px; margin-bottom: 18px; }
.field label { font: 400 11px/1 var(--mono); text-transform: uppercase; letter-spacing: 0.06em; color: var(--soft); }
.optional { color: var(--dim); }
.field input, .field select, .field textarea {
  width: 100%; padding: 12px 14px; border-radius: 2px;
  font: 300 16px/1.4 var(--font); color: var(--text);
  background: var(--well); border: 1px solid var(--line-strong);
  transition: border-color 0.2s;
}
.field select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%238d8d8d' stroke-width='1.5'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 12px center; background-size: 16px; padding-right: 40px; }
.field textarea { resize: vertical; min-height: 130px; }
.field input::placeholder, .field textarea::placeholder { color: var(--placeholder); }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--accent); }
.honeypot { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.form-status { margin: 14px 0 0; min-height: 1.5em; font: 400 12px/1.5 var(--mono); text-align: center; }
.form-status.success { color: var(--success); }
.form-status.error { color: var(--error); }

/* ===== Footer ===== */
.site-footer { border-top: 1px solid var(--line); padding: 64px 0 32px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; }
.footer-note { margin: 16px 0 0; font-size: 14px; }
.footer-head { font: 400 11px/1 var(--mono); text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 20px; }
.site-footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.site-footer ul a { font-size: 14px; color: var(--muted); }
.site-footer ul a:hover { color: var(--text); }
.footer-base { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-top: 56px; padding-top: 24px; border-top: 1px solid var(--line); font: 400 11px/1.6 var(--mono); text-transform: uppercase; color: var(--dim); }
.footer-base p { margin: 0; }
.footer-base a:hover { color: var(--text); }


/* ===== Light theme (only when chosen with the header toggle; saved in a cookie) ===== */
:root[data-theme="light"] {
  color-scheme: light;
  --bg: #fafaf8;
  --panel: #f2f0ec;
  --panel-2: #eae7e2;
  --line: rgba(0, 0, 0, 0.1);
  --line-strong: rgba(0, 0, 0, 0.2);
  --text: #111;
  --muted: #5e5e5e;
  --dim: #9a958e;
  --soft: #333;
  --well: #fff;
  --ink: #111;
  --hatch: rgba(0, 0, 0, 0.6);
  --placeholder: #a3a3a3;
  --header-bg: rgba(250, 250, 248, 0.8);
  --btn-solid-bg: #111;
  --btn-solid-fg: #fff;
  --btn-solid-hover: #8a5a2b;
  --btn-solid-hover-fg: #fff;
  --btn-alt-bg: #e8e5e0;
  --btn-alt-hover: #dcd8d1;
  --btn-alt-fg: #111;
  --accent: #a06a35;
  --accent-strong: #8a5a2b;
  --accent-text: linear-gradient(90deg, #c08a52, #7d5126);
  --ring-core: #1f1d1b;
  --ring-edge: rgba(31, 29, 27, 0.9);
  --beam: linear-gradient(to top, rgba(212, 168, 122, 0.75), rgba(212, 168, 122, 0.35) 35%, rgba(212, 168, 122, 0) 100%);
  --logo-filter: brightness(0.78) contrast(1.25) saturate(1.2);
  --success: #2e7d4f;
  --error: #b4442f;
}

/* ===== Reveal ===== */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.8s ease, transform 0.8s ease; }
.reveal.visible { opacity: 1; transform: none; }
.cards .reveal:nth-child(2) { transition-delay: 0.1s; }
.cards .reveal:nth-child(3) { transition-delay: 0.2s; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
  .reveal:not(.visible) .bar { transform: none; }
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; min-height: 0; max-height: none; gap: 0; padding-top: 40px; }
  .hero-visual { min-height: 420px; }
  .cards { grid-template-columns: 1fr; }
  .panel, .about, .contact { grid-template-columns: 1fr; gap: 48px; }
  .panel { gap: 8px; }
  .steps { grid-template-columns: 1fr 1fr; }
  .step:nth-child(2) { border-right: 0; }
  .step:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
}

@media (max-width: 720px) {
  .container { padding: 0 16px; }
  .nav { height: 68px; }
  .nav-toggle { display: block; }
  .nav-actions { margin-left: auto; gap: 8px; }
  .nav-links {
    position: absolute; top: 68px; left: 0; right: 0; display: none;
    flex-direction: column; align-items: stretch; gap: 0; padding: 8px 16px 20px;
    background: var(--bg); border-bottom: 1px solid var(--line);
  }
  .nav-links.open { display: flex; }
  .nav-links li a:not(.btn) { display: block; padding: 14px 0; border-bottom: 1px solid var(--line); }
  .nav-links .btn { margin-top: 16px; width: 100%; height: 44px; }
  .hero { padding-top: 16px; }
  .hero-visual { min-height: 340px; }
  .section, .contact-section { padding: 80px 0; }
  .panel-copy { padding: 24px 16px; }
  .chart { padding: 20px; }
  .chart-plot { min-height: 240px; }
  .steps { grid-template-columns: 1fr; }
  .step { border-right: 0; border-bottom: 1px solid var(--line); }
  .step:last-child { border-bottom: 0; }
  .step-num { margin-bottom: 20px; }
  .field-row { grid-template-columns: 1fr; gap: 0; }
  .contact-form, .tools { padding: 20px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid > div:first-child { grid-column: 1 / -1; }
}