/* ==========================================================================
   VaultX Minimal Landing Page Stylesheet
   Storehouse Aesthetics: Dark Indigo & Gold, Lightweight, Zero Clutter
   ========================================================================== */

:root {
  --ink: #0d1219;
  --night: #141a24;
  --night-card: #1c2533;
  --night-card-hover: #222d3d;
  
  --indigo-line: rgba(52, 80, 111, 0.4);
  --indigo-glow: rgba(72, 110, 150, 0.15);

  --silk: #e9e2d0;
  --silk-muted: #b8b2a5;
  --ash: #8c8980;

  --gold: #c9a45c;
  --gold-bright: #e0be78;
  --gold-glow: rgba(201, 164, 92, 0.2);

  --emerald: #34d399;

  --font-serif: 'Cinzel', serif;
  --font-sans: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, Menlo, monospace;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-family: var(--font-sans);
  font-size: 16px;
  color: var(--silk);
  background-color: var(--ink);
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
}

body {
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  position: relative;
  overflow-x: hidden;
}

/* Subtle background pattern */
.bg-wall-grid {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  background-color: var(--ink);
  background-image:
    radial-gradient(ellipse 70% 40% at 50% -10%, rgba(52, 80, 111, 0.25), transparent),
    repeating-linear-gradient(45deg, transparent 0 28px, rgba(233, 226, 208, 0.015) 28px 30px),
    repeating-linear-gradient(-45deg, transparent 0 28px, rgba(233, 226, 208, 0.015) 28px 30px);
}

.container {
  width: 100%;
  max-width: 1020px;
  margin-inline: auto;
  padding-inline: 1.5rem;
}

a {
  color: var(--gold);
  text-decoration: none;
  transition: color 0.15s ease;
}

a:hover {
  color: var(--gold-bright);
}

code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  background: rgba(13, 18, 25, 0.7);
  padding: 0.15em 0.4em;
  border-radius: var(--radius-sm);
  border: 1px solid var(--indigo-line);
  color: var(--gold-bright);
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(13, 18, 25, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--indigo-line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4rem;
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.brand-emblem {
  width: 32px;
  height: 32px;
  color: var(--gold);
}

.brand-emblem-sm {
  width: 24px;
  height: 24px;
  color: var(--gold);
}

.brand-title {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--silk);
  letter-spacing: 0.05em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--silk-muted);
}

.nav-link:hover {
  color: var(--silk);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 0.7rem 1.3rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.2s ease;
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(180deg, var(--gold-bright) 0%, var(--gold) 100%);
  color: var(--ink);
  box-shadow: 0 4px 12px rgba(201, 164, 92, 0.25);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(201, 164, 92, 0.4);
  color: var(--ink);
}

.btn-secondary {
  background: var(--night-card);
  color: var(--silk);
  border-color: var(--indigo-line);
}

.btn-secondary:hover {
  background: var(--night-card-hover);
  border-color: var(--gold);
  color: var(--gold-bright);
}

.btn-sm {
  font-size: 0.82rem;
  padding: 0.4rem 0.8rem;
}

.btn-lg {
  font-size: 1rem;
  padding: 0.85rem 1.6rem;
}

/* Copy Button */
.copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background: rgba(52, 80, 111, 0.35);
  border: 1px solid var(--indigo-line);
  color: var(--silk-muted);
  font-family: var(--font-sans);
  font-size: 0.78rem;
  padding: 0.3rem 0.65rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.15s ease;
}

.copy-btn:hover {
  background: var(--gold);
  color: var(--ink);
  border-color: var(--gold);
}

.copy-btn.copied {
  background: var(--emerald);
  color: var(--ink);
  border-color: var(--emerald);
}

/* Hero Section */
.hero-section {
  text-align: center;
  padding-block: 4.5rem 3.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.3rem 0.8rem;
  background: rgba(52, 80, 111, 0.25);
  border: 1px solid var(--indigo-line);
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--silk-muted);
  margin-bottom: 1.5rem;
}

.dot-green {
  width: 7px;
  height: 7px;
  background-color: var(--emerald);
  border-radius: 50%;
  box-shadow: 0 0 6px var(--emerald);
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1.2rem;
  max-width: 44rem;
}

.gold-gradient {
  background: linear-gradient(135deg, var(--gold-bright) 0%, var(--gold) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.12rem;
  color: var(--silk-muted);
  max-width: 38rem;
  line-height: 1.65;
  margin-bottom: 2rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  margin-bottom: 2.8rem;
}

/* Terminal Card */
.terminal-card {
  width: 100%;
  max-width: 42rem;
  background: rgba(13, 18, 25, 0.95);
  border: 1px solid var(--indigo-line);
  border-radius: var(--radius-md);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
  text-align: left;
  overflow: hidden;
}

.terminal-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.6rem 1rem;
  background: var(--night);
  border-bottom: 1px solid var(--indigo-line);
}

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

.term-dots .dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
}

.term-dots .red { background: #ef4444; }
.term-dots .yellow { background: #f59e0b; }
.term-dots .green { background: #10b981; }

.term-title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ash);
}

.terminal-body {
  padding: 1.2rem;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--silk);
  overflow-x: auto;
}

.terminal-body .prompt {
  color: var(--gold);
  user-select: none;
}

/* Sections */
.section {
  padding-block: 4.5rem;
}

.section-heading {
  text-align: center;
  max-width: 36rem;
  margin: 0 auto 3rem;
}

.section-heading .kicker {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--gold);
  margin-bottom: 0.5rem;
}

.section-heading .title {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 3.5vw, 2.4rem);
  font-weight: 700;
  margin-bottom: 0.6rem;
}

.section-heading .desc {
  font-size: 1.02rem;
  color: var(--silk-muted);
}

/* Pillars (How It Works) */
.pillars-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.pillar-card {
  background: var(--night-card);
  border: 1px solid var(--indigo-line);
  border-radius: var(--radius-lg);
  padding: 1.8rem;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

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

.pillar-num {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--gold);
  margin-bottom: 0.8rem;
}

.pillar-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 0.6rem;
}

.pillar-card p {
  font-size: 0.9rem;
  color: var(--silk-muted);
  line-height: 1.55;
  margin-bottom: 1rem;
}

.pillar-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  font-size: 0.84rem;
  color: var(--silk-muted);
  border-top: 1px solid rgba(52, 80, 111, 0.3);
  padding-top: 0.8rem;
}

.pillar-list li strong {
  color: var(--silk);
}

/* Steps (How to Use) */
.steps-flow {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.2rem;
}

.step-box {
  background: var(--night-card);
  border: 1px solid var(--indigo-line);
  border-radius: var(--radius-md);
  padding: 1.5rem;
}

.step-badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--gold);
  background: rgba(201, 164, 92, 0.12);
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
  margin-bottom: 0.8rem;
}

.step-box h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.step-box p {
  font-size: 0.86rem;
  color: var(--silk-muted);
  line-height: 1.55;
}

/* Setup Tabs */
.setup-tabs {
  background: var(--night-card);
  border: 1px solid var(--indigo-line);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.tab-header {
  display: flex;
  background: rgba(13, 18, 25, 0.8);
  border-bottom: 1px solid var(--indigo-line);
}

.tab-trigger {
  flex: 1;
  padding: 1rem;
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--ash);
  font-family: var(--font-sans);
  font-size: 0.92rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
  text-align: center;
}

.tab-trigger:hover {
  color: var(--silk);
}

.tab-trigger.active {
  color: var(--gold-bright);
  background: var(--night-card);
  border-bottom-color: var(--gold);
}

.tab-content {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.tab-content[hidden] {
  display: none;
}

.setup-step {
  display: grid;
  grid-template-columns: 2.2rem 1fr;
  gap: 1.2rem;
}

.step-index {
  width: 2.2rem;
  height: 2.2rem;
  background: var(--ink);
  border: 1px solid var(--indigo-line);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--gold);
}

.step-body h4 {
  font-size: 1.05rem;
  margin-bottom: 0.35rem;
}

.step-body p {
  font-size: 0.88rem;
  color: var(--silk-muted);
  margin-bottom: 0.6rem;
}

.cmd-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  background: var(--ink);
  border: 1px solid var(--indigo-line);
  border-radius: var(--radius-sm);
  padding: 0.65rem 0.9rem;
  margin-bottom: 0.5rem;
}

.cmd-row code {
  background: transparent;
  border: none;
  padding: 0;
  font-size: 0.84rem;
  color: var(--silk);
  white-space: pre-wrap;
  word-break: break-all;
}

.hint {
  font-size: 0.82rem !important;
  color: var(--ash) !important;
}

.mini-list {
  padding-left: 1.2rem;
  font-size: 0.88rem;
  color: var(--silk-muted);
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--indigo-line);
  background: var(--ink);
  padding-block: 3rem;
  margin-top: 2rem;
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.footer-desc {
  font-size: 0.85rem;
  color: var(--ash);
  margin-top: 0.4rem;
}

.footer-nav {
  display: flex;
  gap: 1.5rem;
  margin-bottom: 0.5rem;
}

.footer-nav a {
  color: var(--silk-muted);
  font-size: 0.88rem;
}

.footer-nav a:hover {
  color: var(--silk);
}

.footer-copy {
  font-size: 0.8rem;
  color: var(--ash);
}

.back-link {
  color: var(--gold) !important;
}

/* Toast */
.toast-box {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 100;
}

.toast-msg {
  background: var(--night-card);
  border: 1px solid var(--gold);
  color: var(--silk);
  font-size: 0.82rem;
  font-weight: 500;
  padding: 0.55rem 1rem;
  border-radius: var(--radius-sm);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4);
  animation: fadeOut 2.4s ease forwards;
}

@keyframes fadeOut {
  0% { opacity: 0; transform: translateY(6px); }
  15% { opacity: 1; transform: translateY(0); }
  85% { opacity: 1; transform: translateY(0); }
  100% { opacity: 0; transform: translateY(6px); }
}

/* Responsive */
@media (max-width: 900px) {
  .pillars-grid {
    grid-template-columns: 1fr;
  }
  .steps-flow {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 600px) {
  .steps-flow {
    grid-template-columns: 1fr;
  }
  .nav-links {
    display: none;
  }
  .tab-header {
    flex-direction: column;
  }
  .tab-trigger {
    border-bottom: none;
    border-left: 2px solid transparent;
    text-align: left;
  }
  .tab-trigger.active {
    border-left-color: var(--gold);
  }
  .footer-content {
    flex-direction: column;
    align-items: flex-start;
  }
}