/* ==========================================================================
   sealcha.in — Modern Design System & Styles
   Zero-third-party-dependency, high-contrast, dark-mode-first glassmorphism
   ========================================================================== */

:root {
  /* Color Palette - Dark First */
  --bg: #070a11;
  --bg-subtle: #0d1322;
  --surface: rgba(18, 26, 43, 0.72);
  --surface-hover: rgba(26, 38, 62, 0.85);
  --surface-solid: #121a2b;
  --surface-card: #141f33;
  --border: rgba(255, 255, 255, 0.1);
  --border-focus: rgba(226, 85, 106, 0.6);
  --border-glow: rgba(163, 24, 47, 0.35);

  /* Brand Accents */
  --seal: #a3182f;
  --seal-vibrant: #e2556a;
  --seal-glow: rgba(226, 85, 106, 0.35);
  --seal-soft: rgba(163, 24, 47, 0.18);
  --polygon: #8247e5;
  --polygon-soft: rgba(130, 71, 229, 0.15);

  /* Semantic Verdicts */
  --ok: #10b981;
  --ok-glow: rgba(16, 185, 129, 0.25);
  --ok-soft: rgba(16, 185, 129, 0.14);
  --bad: #ef4444;
  --bad-glow: rgba(239, 68, 68, 0.3);
  --bad-soft: rgba(239, 68, 68, 0.14);
  --warn: #f59e0b;
  --warn-glow: rgba(245, 158, 11, 0.25);
  --warn-soft: rgba(245, 158, 11, 0.14);

  /* Typography Colors */
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-inverse: #070a11;

  /* Font Stacks */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;

  /* Radius & Shadows */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.35);
  --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.45);
  --shadow-glow: 0 0 35px var(--seal-glow);
  --shadow-ok: 0 0 35px var(--ok-glow);

  color-scheme: dark;
}

[data-theme="light"] {
  --bg: #f8fafc;
  --bg-subtle: #f1f5f9;
  --surface: rgba(255, 255, 255, 0.82);
  --surface-hover: rgba(255, 255, 255, 0.95);
  --surface-solid: #ffffff;
  --surface-card: #ffffff;
  --border: rgba(15, 23, 42, 0.1);
  --border-focus: rgba(163, 24, 47, 0.6);
  --border-glow: rgba(163, 24, 47, 0.2);

  --seal: #a3182f;
  --seal-vibrant: #a3182f;
  --seal-glow: rgba(163, 24, 47, 0.2);
  --seal-soft: rgba(163, 24, 47, 0.08);
  --polygon: #6f32cf;
  --polygon-soft: rgba(111, 50, 207, 0.1);

  --ok: #059669;
  --ok-soft: #ecfdf5;
  --bad: #dc2626;
  --bad-soft: #fef2f2;
  --warn: #d97706;
  --warn-soft: #fffbeb;

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --text-inverse: #ffffff;

  --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 10px 30px rgba(15, 23, 42, 0.08);

  color-scheme: light;
}

/* ==========================================================================
   Base & Reset
   ========================================================================== */

*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  background-color: var(--bg);
  background-image:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(163, 24, 47, 0.18), transparent),
    radial-gradient(ellipse 60% 40% at 85% 60%, rgba(130, 71, 229, 0.08), transparent),
    radial-gradient(ellipse 50% 30% at 15% 40%, rgba(16, 185, 129, 0.05), transparent);
  background-attachment: fixed;
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

::selection {
  background: var(--seal-vibrant);
  color: #ffffff;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* ==========================================================================
   Navigation Bar
   ========================================================================== */

.nav-wrap {
  position: sticky;
  top: 0;
  z-index: 100;
  width: 100%;
  background: var(--surface);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: border-color 0.2s ease, background 0.2s ease;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  flex-shrink: 0;
}

.nav-brand img {
  width: 38px;
  height: 38px;
  filter: drop-shadow(0 2px 8px var(--seal-glow));
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.nav-brand:hover img {
  transform: rotate(8deg) scale(1.06);
}

.nav-brand span b {
  color: var(--seal-vibrant);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 0.2s ease;
  white-space: nowrap;
}

.nav-links a:hover {
  color: var(--text-primary);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn-lang-toggle {
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  border-radius: var(--radius-full);
  background: var(--surface-card);
  border: 1px solid var(--border);
  color: var(--text-primary);
  font-size: 13px;
  font-weight: 600;
  transition: all 0.2s ease;
}

.btn-lang-toggle:hover {
  border-color: var(--seal-vibrant);
  box-shadow: 0 0 12px var(--seal-glow);
}

.btn-theme-toggle {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--surface-card);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  transition: all 0.2s ease;
}

.btn-theme-toggle:hover {
  color: var(--text-primary);
  border-color: var(--border-focus);
}

.btn-nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, #a3182f 0%, #c4283f 100%);
  color: #ffffff;
  font-size: 14px;
  font-weight: 600;
  box-shadow: 0 4px 14px var(--seal-glow);
  transition: all 0.25s ease;
  white-space: nowrap;
}

.btn-nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px var(--seal-glow);
  filter: brightness(1.08);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */

.hero-section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 72px 24px 64px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 16px;
  border-radius: var(--radius-full);
  background: var(--surface-card);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 28px;
  transition: border-color 0.2s ease;
}

.hero-badge:hover {
  border-color: var(--seal-vibrant);
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--ok);
  box-shadow: 0 0 10px var(--ok);
  animation: pulse-ring 2s infinite ease-out;
}

@keyframes pulse-ring {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 8px rgba(16, 185, 129, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

.hero-title {
  font-size: clamp(38px, 6vw, 68px);
  line-height: 1.1;
  font-weight: 800;
  letter-spacing: -0.04em;
  margin: 0 0 24px;
  max-width: 20ch;
  text-wrap: balance;
}

.hero-title .highlight {
  background: linear-gradient(135deg, var(--text-primary) 20%, var(--seal-vibrant) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: clamp(17px, 2.2vw, 21px);
  line-height: 1.55;
  color: var(--text-secondary);
  max-width: 44ch;
  margin: 0 0 36px;
  text-wrap: balance;
}

.hero-ctas {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 60px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, #a3182f 0%, #d42c46 100%);
  color: #ffffff;
  font-size: 16px;
  font-weight: 600;
  box-shadow: 0 6px 24px var(--seal-glow);
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 32px var(--seal-glow);
  filter: brightness(1.1);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: var(--radius-full);
  background: var(--surface-card);
  border: 1px solid var(--border);
  color: var(--text-primary);
  font-size: 16px;
  font-weight: 600;
  transition: all 0.25s ease;
}

.btn-secondary:hover {
  background: var(--surface-hover);
  border-color: var(--border-focus);
  transform: translateY(-2px);
}

/* Stat Grid */
.hero-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  width: 100%;
}

.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px 20px;
  text-align: left;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.stat-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-glow);
  box-shadow: var(--shadow-md);
}

.stat-card .val {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.stat-card .val::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--seal-vibrant);
}

.stat-card .desc {
  font-size: 13.5px;
  color: var(--text-secondary);
  line-height: 1.5;
  margin: 0;
}

/* ==========================================================================
   Interactive Simulator
   ========================================================================== */

.section-wrap {
  max-width: 1200px;
  margin: 0 auto;
  padding: 64px 24px;
}

.section-head {
  text-align: center;
  margin-bottom: 40px;
}

.section-kicker {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--seal-vibrant);
  margin-bottom: 8px;
}

.section-title {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin: 0 0 12px;
  color: var(--text-primary);
}

.section-sub {
  font-size: 17px;
  color: var(--text-secondary);
  max-width: 56ch;
  margin: 0 auto;
}

.sim-container {
  background: var(--surface-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

/* Tabs */
.sim-tabs {
  display: flex;
  overflow-x: auto;
  background: var(--bg-subtle);
  border-bottom: 1px solid var(--border);
  padding: 8px;
  gap: 8px;
}

.sim-tab-btn {
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
  white-space: nowrap;
  transition: all 0.2s ease;
}

.sim-tab-btn:hover {
  color: var(--text-primary);
  background: var(--surface);
}

.sim-tab-btn.active {
  color: #ffffff;
  background: var(--seal);
  box-shadow: 0 2px 10px var(--seal-glow);
}

/* Simulator Grid */
.sim-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 520px;
}

@media (max-width: 860px) {
  .sim-body {
    grid-template-columns: 1fr;
  }
}

/* Left Pane: Interactive Bottle Visual */
.sim-bottle-pane {
  padding: 36px;
  background: radial-gradient(circle at 50% 40%, rgba(163, 24, 47, 0.08), transparent 70%);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
}

@media (max-width: 860px) {
  .sim-bottle-pane {
    border-right: none;
    border-bottom: 1px solid var(--border);
  }
}

.bottle-visual-wrapper {
  position: relative;
  width: 100%;
  max-width: 280px;
  height: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.bottle-svg {
  width: 100%;
  height: 100%;
  filter: drop-shadow(0 15px 25px rgba(0, 0, 0, 0.4));
}

.hotspot {
  position: absolute;
  cursor: pointer;
  border-radius: var(--radius-full);
  padding: 6px 14px;
  font-size: 12px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4);
}

.hotspot-cap {
  top: 14px;
  right: -20px;
  background: var(--surface-solid);
  border: 1.5px solid var(--seal-vibrant);
  color: var(--seal-vibrant);
}

.hotspot-cap:hover, .hotspot-cap.active {
  background: var(--seal-vibrant);
  color: #ffffff;
  transform: scale(1.05);
}

.hotspot-label {
  top: 140px;
  left: -24px;
  background: var(--surface-solid);
  border: 1.5px solid var(--ok);
  color: var(--ok);
}

.hotspot-label:hover, .hotspot-label.active {
  background: var(--ok);
  color: #ffffff;
  transform: scale(1.05);
}

.sim-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
  width: 100%;
  margin-top: 24px;
}

.btn-action-sim {
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  font-size: 13.5px;
  font-weight: 600;
  border: 1px solid var(--border);
  background: var(--surface-solid);
  color: var(--text-primary);
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-action-sim:hover {
  border-color: var(--seal-vibrant);
  background: var(--surface-hover);
}

.btn-action-sim.primary {
  background: var(--seal);
  border-color: var(--seal);
  color: #ffffff;
}

/* Right Pane: Phone Scanner Screen */
.sim-phone-pane {
  padding: 36px;
  background: var(--bg-subtle);
  display: flex;
  flex-direction: column;
}

.phone-card {
  background: var(--surface-solid);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 16px;
  box-shadow: var(--shadow-sm);
}

.phone-screen-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

.phone-screen-header .brand-mini {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 15px;
}

.phone-screen-header .brand-mini img {
  width: 22px;
  height: 22px;
}

.phone-status-pill {
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: var(--radius-full);
}

.phone-status-pill.ok { background: var(--ok-soft); color: var(--ok); }
.phone-status-pill.bad { background: var(--bad-soft); color: var(--bad); }
.phone-status-pill.warn { background: var(--warn-soft); color: var(--warn); }

/* Verdict Box */
.verdict-box {
  border-radius: var(--radius-sm);
  padding: 16px;
  display: flex;
  gap: 14px;
  align-items: flex-start;
  transition: all 0.3s ease;
}

.verdict-box.ok { background: var(--ok-soft); border: 1px solid rgba(16, 185, 129, 0.3); }
.verdict-box.bad { background: var(--bad-soft); border: 1px solid rgba(239, 68, 68, 0.3); }
.verdict-box.warn { background: var(--warn-soft); border: 1px solid rgba(245, 158, 11, 0.3); }

.verdict-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 4px;
}

.verdict-box.ok .verdict-dot { background: var(--ok); box-shadow: 0 0 10px var(--ok); }
.verdict-box.bad .verdict-dot { background: var(--bad); box-shadow: 0 0 10px var(--bad); }
.verdict-box.warn .verdict-dot { background: var(--warn); box-shadow: 0 0 10px var(--warn); }

.verdict-content h3 {
  margin: 0 0 4px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.3;
}

.verdict-box.ok h3 { color: var(--ok); }
.verdict-box.bad h3 { color: var(--bad); }
.verdict-box.warn h3 { color: var(--warn); }

.verdict-content p {
  margin: 0;
  font-size: 13.5px;
  color: var(--text-primary);
  line-height: 1.45;
}

/* Detail Table */
.sim-details-list {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 8px 16px;
  font-size: 13px;
}

.sim-details-list dt {
  color: var(--text-muted);
  font-weight: 500;
}

.sim-details-list dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--text-primary);
  overflow-wrap: anywhere;
}

.sim-proof-box {
  border-top: 1px solid var(--border);
  padding-top: 14px;
}

.btn-proof-inspect {
  width: 100%;
  padding: 10px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 13px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all 0.2s ease;
}

.btn-proof-inspect:hover {
  background: var(--surface-hover);
  border-color: var(--border-focus);
}

.proof-results-list {
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 12.5px;
}

.proof-results-list li {
  padding: 6px 10px;
  border-radius: 4px;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.proof-results-list li.ok { border-left: 3px solid var(--ok); }
.proof-results-list li.bad { border-left: 3px solid var(--bad); }

/* ==========================================================================
   Direct Lookup Bar
   ========================================================================== */

.lookup-card {
  margin-top: 24px;
  background: var(--surface-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.lookup-form {
  display: flex;
  gap: 10px;
  width: 100%;
}

@media (max-width: 640px) {
  .lookup-form {
    flex-direction: column;
  }
}

.lookup-input {
  flex: 1;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 14px;
  transition: border-color 0.2s ease;
}

.lookup-input:focus {
  outline: none;
  border-color: var(--seal-vibrant);
  box-shadow: 0 0 10px var(--seal-glow);
}

.lookup-sample-btn {
  font-size: 12.5px;
  color: var(--seal-vibrant);
  font-weight: 600;
  align-self: flex-start;
  text-decoration: underline;
  text-underline-offset: 3px;
  padding: 0;
}

/* ==========================================================================
   2-Layer Architecture Deep Dive
   ========================================================================== */

.layers-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 36px;
}

@media (max-width: 780px) {
  .layers-grid {
    grid-template-columns: 1fr;
  }
}

.layer-card {
  background: var(--surface-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  position: relative;
  overflow: hidden;
  transition: transform 0.25s ease, border-color 0.25s ease;
}

.layer-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-glow);
}

.layer-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
}

.layer-card.outer::before { background: linear-gradient(90deg, #10b981, #059669); }
.layer-card.inner::before { background: linear-gradient(90deg, #a3182f, #e2556a); }

.layer-header {
  display: flex;
  align-items: center;
  gap: 14px;
}

.layer-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 18px;
}

.layer-card.outer .layer-icon {
  background: var(--ok-soft);
  color: var(--ok);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.layer-card.inner .layer-icon {
  background: var(--seal-soft);
  color: var(--seal-vibrant);
  border: 1px solid rgba(226, 85, 106, 0.3);
}

.layer-header h3 {
  margin: 0;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.layer-points {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.layer-points li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.5;
}

.layer-points li::before {
  content: "✓";
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 1px;
}

.layer-card.outer .layer-points li::before { color: var(--ok); }
.layer-card.inner .layer-points li::before { color: var(--seal-vibrant); }

/* ==========================================================================
   How It Works Steps
   ========================================================================== */

.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
  margin-top: 36px;
}

.step-card {
  background: var(--surface-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  position: relative;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.step-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-glow);
}

.step-num {
  font-family: var(--font-mono);
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--seal-vibrant);
  opacity: 0.85;
}

.step-card h3 {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.step-card p {
  margin: 0;
  font-size: 14.5px;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* ==========================================================================
   Industry Solutions Grid
   ========================================================================== */

.industries-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  margin-top: 36px;
}

.industry-card {
  background: var(--surface-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.industry-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-glow);
}

.industry-tag {
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 4px 8px;
  border-radius: var(--radius-full);
  background: var(--bg-subtle);
  color: var(--text-muted);
  border: 1px solid var(--border);
}

.industry-card h3 {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.industry-card p {
  margin: 0;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* ==========================================================================
   Tech & Blockchain Transparency
   ========================================================================== */

.tech-banner {
  background: radial-gradient(ellipse at 80% 20%, rgba(130, 71, 229, 0.15), transparent 70%),
              var(--surface-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 36px;
  align-items: center;
  margin-top: 36px;
}

@media (max-width: 860px) {
  .tech-banner {
    grid-template-columns: 1fr;
    padding: 28px;
  }
}

.tech-info h3 {
  margin: 0 0 12px;
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.tech-info p {
  margin: 0 0 20px;
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.6;
}

.tech-contract-box {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.contract-chip {
  font-family: var(--font-mono);
  font-size: 13px;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  background: var(--surface-solid);
  border: 1px solid var(--border);
  color: var(--polygon);
  word-break: break-all;
}

.btn-contract-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--seal-vibrant);
  font-weight: 600;
  font-size: 14px;
  transition: gap 0.2s ease;
}

.btn-contract-link:hover {
  gap: 12px;
}

/* ==========================================================================
   Producer Integration & CLI
   ========================================================================== */

.cli-card {
  background: #0d121c;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  margin-top: 24px;
}

.cli-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid var(--border);
}

.cli-dots {
  display: flex;
  gap: 6px;
}

.cli-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
}

.cli-title {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
}

.cli-body {
  padding: 20px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 1.6;
  color: #e7eaf0;
  overflow-x: auto;
}

.cli-body .comment { color: var(--text-muted); }
.cli-body .cmd { color: #5cc08a; font-weight: 600; }
.cli-body .flag { color: #e0a94a; }

/* ==========================================================================
   Verification Flow Overrides (When visiting /01/.. or /r/..)
   ========================================================================== */

.verification-view {
  max-width: 600px;
  margin: 40px auto;
  padding: 0 20px 60px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.verification-nav-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 6px;
  transition: color 0.2s ease;
}

.verification-nav-back:hover {
  color: var(--seal-vibrant);
}

.verification-card {
  background: var(--surface-solid);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.verification-card.ok { background: var(--ok-soft); border-color: rgba(16, 185, 129, 0.3); }
.verification-card.bad { background: var(--bad-soft); border-color: rgba(239, 68, 68, 0.3); }
.verification-card.warn { background: var(--warn-soft); border-color: rgba(245, 158, 11, 0.3); }
.verification-card.neutral { background: var(--surface-card); }

.verification-card .dot {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 4px;
}

.verification-card.ok .dot { background: var(--ok); box-shadow: 0 0 10px var(--ok); }
.verification-card.bad .dot { background: var(--bad); box-shadow: 0 0 10px var(--bad); }
.verification-card.warn .dot { background: var(--warn); box-shadow: 0 0 10px var(--warn); }
.verification-card.neutral .dot { background: var(--text-muted); }

.verification-card.busy .dot {
  background: var(--seal-vibrant);
  animation: pulse-busy 1s ease-in-out infinite alternate;
}

@keyframes pulse-busy {
  from { opacity: 0.3; transform: scale(0.9); }
  to { opacity: 1; transform: scale(1.1); }
}

.verification-card h2 {
  margin: 0 0 6px;
  font-size: 19px;
  font-weight: 700;
  line-height: 1.3;
}

.verification-card.ok h2 { color: var(--ok); }
.verification-card.bad h2 { color: var(--bad); }
.verification-card.warn h2 { color: var(--warn); }

.verification-card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.55;
  color: var(--text-primary);
}

details.verification-details {
  background: var(--surface-solid);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 16px 20px;
}

details.verification-details summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 15px;
  color: var(--text-primary);
}

.verification-dl {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 8px 20px;
  margin: 16px 0;
  font-size: 14px;
}

.verification-dl dt { color: var(--text-muted); }
.verification-dl dd { margin: 0; font-family: var(--font-mono); font-size: 13px; overflow-wrap: anywhere; }

.buis-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--seal-vibrant);
  font-weight: 600;
  font-size: 14px;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  background: var(--surface-solid);
  border: 1px solid var(--border);
  transition: all 0.2s ease;
}

.buis-link:hover {
  border-color: var(--seal-vibrant);
}

/* ==========================================================================
   Footer
   ========================================================================== */

footer.site-footer {
  margin-top: auto;
  background: var(--bg-subtle);
  border-top: 1px solid var(--border);
  padding: 48px 24px 32px;
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 18px;
  color: var(--text-primary);
}

.footer-brand img {
  width: 28px;
  height: 28px;
}

.footer-meta {
  font-size: 13.5px;
  color: var(--text-secondary);
}

.footer-links {
  display: flex;
  gap: 20px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-links a {
  font-size: 13.5px;
  color: var(--text-secondary);
  transition: color 0.2s ease;
}

.footer-links a:hover {
  color: var(--seal-vibrant);
}

/* ==========================================================================
   Responsiveness & Mobile Tweaks
   ========================================================================== */

@media (max-width: 768px) {
  .nav-links {
    display: none; /* Can be toggled or kept lean for mobile */
  }
  .hero-section {
    padding: 48px 16px 40px;
  }
  .section-wrap {
    padding: 48px 16px;
  }
  .footer-container {
    flex-direction: column;
    align-items: flex-start;
  }
}