/* ============================================
   AKSARA SUNDA - Design System
   Inspired by West Javanese tropical landscape:
   deep forest green + warm amber + paper cream
   ============================================ */

:root {
  /* Brand colors */
  --accent: #2d5f3f;          /* deep tropical green */
  --accent-hover: #1f4a2e;
  --accent-soft: #e8f0ea;
  --amber: #c87f2a;            /* warm gold for highlights */
  --amber-soft: #fdf3e2;
  --terracotta: #b34d3b;       /* batik red, used sparingly */

  /* Neutrals - light theme */
  --bg: #faf7f0;               /* paper cream */
  --bg-elevated: #ffffff;
  --bg-subtle: #f3eee2;
  --border: #e5dfd0;
  --border-strong: #c9c0a8;
  --text: #1f2620;
  --text-soft: #5a6356;
  --text-muted: #8a8f82;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(31, 38, 32, 0.04);
  --shadow-md: 0 4px 14px rgba(31, 38, 32, 0.08);
  --shadow-lg: 0 12px 32px rgba(31, 38, 32, 0.10);
  --shadow-glow: 0 0 0 4px rgba(45, 95, 63, 0.12);

  /* Type */
  --font-display: 'Fraunces', 'Georgia', serif;
  --font-body: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --font-sunda: 'Noto Sans Sundanese', 'Sundanese', serif;
  --font-mono: ui-monospace, 'SF Mono', Consolas, monospace;

  /* Radii */
  --r-sm: 6px;
  --r-md: 10px;
  --r-lg: 16px;
  --r-xl: 24px;

  /* Spacing rhythm */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-12: 3rem;
  --space-16: 4rem;

  /* Layout */
  --container-max: 1180px;
  --header-h: 72px;
}

[data-theme="dark"] {
  --accent: #5fb87a;
  --accent-hover: #7ec898;
  --accent-soft: #1a2e22;
  --amber: #e3a85c;
  --amber-soft: #2e2418;
  --terracotta: #d97565;

  --bg: #131814;
  --bg-elevated: #1c2420;
  --bg-subtle: #232b27;
  --border: #2e3631;
  --border-strong: #424a44;
  --text: #ecf0eb;
  --text-soft: #b4bbb1;
  --text-muted: #7e857a;

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 14px rgba(0,0,0,0.4);
  --shadow-lg: 0 12px 32px rgba(0,0,0,0.5);
  --shadow-glow: 0 0 0 4px rgba(95, 184, 122, 0.18);
}

/* ============================================
   RESET & BASE
   ============================================ */

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

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

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  background-image:
    radial-gradient(circle at 0% 0%, rgba(45, 95, 63, 0.04) 0%, transparent 50%),
    radial-gradient(circle at 100% 100%, rgba(200, 127, 42, 0.04) 0%, transparent 50%);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

[data-theme="dark"] body {
  background-image:
    radial-gradient(circle at 0% 0%, rgba(95, 184, 122, 0.05) 0%, transparent 50%),
    radial-gradient(circle at 100% 100%, rgba(227, 168, 92, 0.04) 0%, transparent 50%);
}

img, svg { display: block; max-width: 100%; height: auto; }

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 150ms ease;
}
a:hover { color: var(--accent-hover); }

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.015em;
  color: var(--text);
  margin: 0 0 var(--space-4);
}

h1 { font-size: clamp(2rem, 4.5vw, 3.25rem); font-weight: 700; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); }
h3 { font-size: clamp(1.25rem, 2.2vw, 1.625rem); }
h4 { font-size: 1.125rem; }

p { margin: 0 0 var(--space-4); }

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

@media (max-width: 640px) {
  .container { padding: 0 var(--space-4); }
}

/* Accessibility */
.skip-link {
  position: absolute;
  top: -100px;
  left: var(--space-4);
  background: var(--accent);
  color: white;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--r-md);
  z-index: 1000;
  transition: top 150ms ease;
}
.skip-link:focus { top: var(--space-4); color: white; }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

::selection {
  background: var(--amber);
  color: #1f2620;
}

/* ============================================
   HEADER
   ============================================ */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 247, 240, 0.85);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--border);
}

[data-theme="dark"] .site-header {
  background: rgba(19, 24, 20, 0.85);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  height: var(--header-h);
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--text);
  font-weight: 700;
}
.brand:hover { color: var(--text); }

.brand-mark {
  display: inline-flex;
}

.brand-text {
  display: flex;
  align-items: baseline;
  gap: 2px;
  font-family: var(--font-display);
}
.brand-name { font-size: 1.25rem; font-weight: 700; letter-spacing: -0.02em; }
.brand-tag { font-size: 0.95rem; color: var(--amber); font-weight: 600; }

.primary-nav { flex: 1; }

.nav-list {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  list-style: none;
  padding: 0;
  margin: 0;
}

.nav-list a {
  display: inline-block;
  padding: var(--space-2) var(--space-4);
  color: var(--text-soft);
  font-weight: 500;
  font-size: 0.95rem;
  border-radius: var(--r-md);
  transition: all 150ms ease;
}
.nav-list a:hover {
  color: var(--accent);
  background: var(--accent-soft);
}
.nav-list a[aria-current="page"] {
  color: var(--accent);
  background: var(--accent-soft);
  font-weight: 600;
}

.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: var(--space-2);
  color: var(--text);
  cursor: pointer;
}

.theme-toggle {
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: var(--space-2);
  cursor: pointer;
  color: var(--text);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  transition: all 150ms ease;
}
.theme-toggle:hover {
  background: var(--accent-soft);
  color: var(--accent);
}
.theme-toggle .icon-sun { display: none; }
.theme-toggle .icon-moon { display: block; }
[data-theme="dark"] .theme-toggle .icon-sun { display: block; }
[data-theme="dark"] .theme-toggle .icon-moon { display: none; }

@media (max-width: 880px) {
  .nav-toggle { display: inline-flex; }
  .nav-list {
    display: none;
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: var(--bg-elevated);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    padding: var(--space-4);
    align-items: stretch;
    box-shadow: var(--shadow-md);
  }
  .nav-list.open { display: flex; }
  .nav-list a { display: block; padding: var(--space-3) var(--space-4); }
}

/* ============================================
   HERO + TRANSLATOR
   ============================================ */

.hero {
  padding: var(--space-12) 0 var(--space-8);
  position: relative;
  overflow: hidden;
}

.hero-decoration {
  position: absolute;
  top: 20%;
  right: -100px;
  width: 400px;
  height: 400px;
  opacity: 0.08;
  font-family: var(--font-sunda);
  font-size: 280px;
  color: var(--accent);
  pointer-events: none;
  user-select: none;
  z-index: 0;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: var(--amber-soft);
  color: var(--amber);
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  margin-bottom: var(--space-4);
}
.hero-eyebrow i { width: 14px; height: 14px; }

.hero-title {
  position: relative;
  z-index: 1;
}
.hero-title .sunda-accent {
  font-family: var(--font-sunda);
  color: var(--accent);
  font-size: 0.85em;
  font-weight: normal;
}

.hero-subtitle {
  font-size: 1.125rem;
  color: var(--text-soft);
  max-width: 640px;
  margin-bottom: var(--space-8);
  position: relative;
  z-index: 1;
}

/* Translator card */
.translator {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  position: relative;
  z-index: 2;
}

.translator-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-6);
  border-bottom: 1px solid var(--border);
  background: var(--bg-subtle);
  flex-wrap: wrap;
  gap: var(--space-3);
}

.translator-direction {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  font-weight: 600;
  font-size: 0.95rem;
}
.translator-direction .lang-label {
  padding: var(--space-1) var(--space-3);
  background: var(--bg-elevated);
  border-radius: var(--r-md);
  border: 1px solid var(--border);
  color: var(--text);
}
.translator-direction .lang-label.sunda {
  font-family: var(--font-sunda);
  font-size: 1.05rem;
}

.swap-btn {
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 999px;
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform 250ms ease, background 150ms ease;
}
.swap-btn:hover { background: var(--accent-hover); }
.swap-btn:active { transform: rotate(180deg); }

.translator-options {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.option-toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  cursor: pointer;
  font-size: 0.85rem;
  color: var(--text-soft);
  user-select: none;
}
.option-toggle input[type="checkbox"] {
  appearance: none;
  width: 32px;
  height: 18px;
  background: var(--border-strong);
  border-radius: 999px;
  position: relative;
  cursor: pointer;
  transition: background 150ms ease;
}
.option-toggle input[type="checkbox"]::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 14px;
  height: 14px;
  background: white;
  border-radius: 50%;
  transition: transform 200ms ease;
}
.option-toggle input[type="checkbox"]:checked {
  background: var(--accent);
}
.option-toggle input[type="checkbox"]:checked::after {
  transform: translateX(14px);
}

.translator-panels {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 180px;
}

@media (max-width: 760px) {
  .translator-panels { grid-template-columns: 1fr; }
}

.panel {
  padding: var(--space-4) var(--space-5) var(--space-3);
  position: relative;
  display: flex;
  flex-direction: column;
}

.panel-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: var(--space-3);
  padding: 0 var(--space-1);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.translator-input,
.translator-output {
  width: 100%;
  min-height: 110px;
  flex: 1;
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.5;
  color: var(--text);
  background: transparent;
  border: none;
  outline: none;
  resize: none;
  padding: var(--space-1) var(--space-2);
}
.translator-input::placeholder,
.translator-output::placeholder {
  color: var(--text-muted);
  font-family: var(--font-body);
  font-size: 1rem;
  font-style: normal;
}

.translator-input.sunda,
.translator-output.sunda {
  font-family: var(--font-sunda);
  font-size: 1.375rem;
  line-height: 1.6;
}
.translator-input.sunda::placeholder,
.translator-output.sunda::placeholder {
  font-family: var(--font-body);
  font-size: 1rem;
}

.panel-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-3);
  margin-top: var(--space-3);
  padding: var(--space-2) var(--space-2) 0;
  border-top: 1px dashed var(--border);
}

.char-count {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
}

.translator-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-top: 1px solid var(--border);
  background: var(--bg-subtle);
}
.translator-actions .actions-spacer {
  /* Empty space under the input column - keeps alignment */
}
.translator-actions .actions-bar {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  border-left: 1px solid var(--border);
}

@media (max-width: 760px) {
  .translator-actions {
    grid-template-columns: 1fr;
  }
  .translator-actions .actions-spacer {
    display: none;
  }
  .translator-actions .actions-bar {
    border-left: none;
    justify-content: center;
  }
}

/* Keyboard under input only: half-width on desktop */
.virtual-keyboard.keyboard-under-input {
  width: 50%;
  margin-top: var(--space-3);
  margin-right: auto;
}
@media (max-width: 760px) {
  .virtual-keyboard.keyboard-under-input {
    width: 100%;
  }
}

.panel + .panel {
  border-left: 1px solid var(--border);
}
@media (max-width: 760px) {
  .panel + .panel {
    border-left: none;
    border-top: 1px solid var(--border);
  }
}

.panel-actions {
  display: flex;
  gap: var(--space-2);
}

.btn-icon {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-soft);
  width: 36px;
  height: 36px;
  border-radius: var(--r-md);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all 150ms ease;
}
.btn-icon:hover {
  background: var(--accent-soft);
  color: var(--accent);
  border-color: var(--accent);
}
.btn-icon[disabled] {
  opacity: 0.4;
  cursor: not-allowed;
}
.btn-icon i { width: 18px; height: 18px; }

/* ============================================
   VIRTUAL KEYBOARD
   ============================================ */

.keyboard-section {
  padding: var(--space-12) 0;
}

.keyboard-toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: transparent;
  border: 1px solid var(--border);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--r-md);
  color: var(--text-soft);
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 500;
  transition: all 150ms ease;
}
.keyboard-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.virtual-keyboard {
  display: none;
  margin-top: var(--space-4);
  padding: var(--space-4);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-sm);
}
.virtual-keyboard.open { display: block; }

/* INLINE keyboard - appears below translator when toggle is on */
.virtual-keyboard.inline {
  margin-top: var(--space-4);
  padding: var(--space-3) var(--space-4);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-sm);
}
.virtual-keyboard.inline .kb-body {
  padding: 0;
}
.virtual-keyboard.inline .kb-section-label {
  font-size: 0.7rem;
  margin: var(--space-3) 0 var(--space-2);
}
.virtual-keyboard.inline .kb-row {
  gap: 6px;
  margin-bottom: 6px;
  flex-wrap: wrap;
}
/* Compact keys for inline keyboard */
.virtual-keyboard.inline .kb-key {
  min-width: 38px;
  min-height: 38px;
  padding: 4px 6px;
  font-size: 1.1rem;
  border-radius: var(--r-sm);
}
.virtual-keyboard.inline .kb-key .kb-romaji {
  font-size: 0.6rem;
  margin-top: 1px;
}

@media (max-width: 640px) {
  .virtual-keyboard.inline .kb-key {
    min-width: 32px;
    min-height: 32px;
    font-size: 0.95rem;
    padding: 2px 4px;
  }
  .virtual-keyboard.inline .kb-key .kb-romaji {
    font-size: 0.55rem;
  }
}

.kb-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-2);
  justify-content: center;
}
.kb-row:last-child { margin-bottom: 0; }

.kb-section-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  font-weight: 700;
  margin: var(--space-3) 0 var(--space-2);
  text-align: center;
}

.kb-key {
  min-width: 48px;
  min-height: 48px;
  padding: var(--space-2) var(--space-3);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  font-family: var(--font-sunda);
  font-size: 1.3rem;
  color: var(--text);
  cursor: pointer;
  transition: all 100ms ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
}
.kb-key:hover {
  background: var(--accent-soft);
  border-color: var(--accent);
  transform: translateY(-2px);
}
.kb-key:active { transform: translateY(0); }
.kb-key .kb-romaji {
  font-family: var(--font-body);
  font-size: 0.65rem;
  color: var(--text-muted);
  margin-top: 2px;
}
.kb-key.special { font-family: var(--font-body); font-size: 0.85rem; }

/* ============================================
   FEATURES GRID
   ============================================ */

.features {
  padding: var(--space-16) 0;
}

.section-eyebrow {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--amber);
  margin-bottom: var(--space-2);
}

.section-title {
  margin-bottom: var(--space-3);
}

.section-lead {
  font-size: 1.125rem;
  color: var(--text-soft);
  max-width: 640px;
  margin-bottom: var(--space-12);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-6);
}

.feature {
  padding: var(--space-6);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  transition: all 200ms ease;
  position: relative;
  overflow: hidden;
}
.feature:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent);
}

.feature-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: var(--r-md);
  background: var(--accent-soft);
  color: var(--accent);
  margin-bottom: var(--space-4);
}
.feature-icon i { width: 24px; height: 24px; }

.feature h3 {
  font-size: 1.125rem;
  margin-bottom: var(--space-2);
}

.feature p {
  font-size: 0.95rem;
  color: var(--text-soft);
  margin: 0;
}

/* ============================================
   HOW IT WORKS
   ============================================ */

.how-it-works {
  padding: var(--space-16) 0;
  background: var(--bg-subtle);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
  counter-reset: step;
}

@media (max-width: 760px) {
  .steps-grid { grid-template-columns: 1fr; }
}

.step {
  position: relative;
  padding-top: var(--space-8);
}
.step::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  position: absolute;
  top: 0;
  left: 0;
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  opacity: 0.5;
}

.step h3 { font-size: 1.25rem; }
.step p { color: var(--text-soft); margin: 0; }

/* ============================================
   FAQ
   ============================================ */

.faq-section { padding: var(--space-16) 0; }

.faq-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.faq-item {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  overflow: hidden;
}

.faq-question {
  width: 100%;
  text-align: left;
  padding: var(--space-4) var(--space-6);
  background: transparent;
  border: none;
  color: var(--text);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  font-family: inherit;
}
.faq-question:hover { color: var(--accent); }
.faq-question .chevron { transition: transform 200ms ease; flex-shrink: 0; }
.faq-item.open .faq-question .chevron { transform: rotate(180deg); }

.faq-answer {
  display: none;
  padding: 0 var(--space-6) var(--space-4);
  color: var(--text-soft);
}
.faq-item.open .faq-answer { display: block; }

/* ============================================
   BUTTONS
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  background: var(--accent);
  color: white;
  border: none;
  border-radius: var(--r-md);
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 150ms ease;
  text-decoration: none;
}
.btn:hover {
  background: var(--accent-hover);
  color: white;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}
.btn.outline {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
}
.btn.outline:hover {
  background: var(--accent-soft);
  color: var(--accent);
}

/* ============================================
   FOOTER
   ============================================ */

.site-footer {
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
  padding: var(--space-16) 0 var(--space-6);
  margin-top: var(--space-16);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-8);
  margin-bottom: var(--space-12);
}

@media (max-width: 760px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; }
}

.footer-brand { max-width: 360px; }
.footer-desc {
  font-size: 0.9rem;
  color: var(--text-soft);
  margin-top: var(--space-4);
}

.footer-col h4 {
  font-family: var(--font-body);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 700;
  color: var(--text-muted);
  margin-bottom: var(--space-4);
}

.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.footer-col a {
  font-size: 0.9rem;
  color: var(--text-soft);
}
.footer-col a:hover { color: var(--accent); }

.footer-bottom {
  padding-top: var(--space-6);
  border-top: 1px solid var(--border);
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
}
.footer-bottom p {
  margin: 0;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
  justify-content: center;
}
.heart-icon {
  color: var(--terracotta);
  width: 16px;
  height: 16px;
  fill: currentColor;
}

/* ============================================
   ADS
   ============================================ */

.ad-slot {
  margin: var(--space-8) 0;
  min-height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-subtle);
  border-radius: var(--r-md);
  overflow: hidden;
}
.ad-slot ins { width: 100%; }

/* ============================================
   BLOG
   ============================================ */

.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-6);
  margin-bottom: var(--space-12);
}

.post-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  overflow: hidden;
  transition: all 200ms ease;
  display: flex;
  flex-direction: column;
}
.post-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent);
}
.post-card a { color: var(--text); }

.post-card-cover {
  aspect-ratio: 16 / 9;
  background: var(--accent-soft);
  background-image: linear-gradient(135deg, var(--accent-soft) 0%, var(--amber-soft) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-sunda);
  font-size: 3rem;
  color: var(--accent);
}

.post-card-body { padding: var(--space-5); flex: 1; display: flex; flex-direction: column; }

.post-card h3 {
  font-size: 1.125rem;
  margin-bottom: var(--space-2);
}

.post-card .post-meta {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: auto;
  padding-top: var(--space-3);
  display: flex;
  gap: var(--space-3);
}

.post-content {
  max-width: 720px;
  margin: 0 auto;
  padding: var(--space-8) 0;
}
.post-content h1 { margin-bottom: var(--space-4); }
.post-content h2 { margin-top: var(--space-8); }
.post-content h3 { margin-top: var(--space-6); }
.post-content p, .post-content ul, .post-content ol {
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--text);
}
.post-content blockquote {
  border-left: 4px solid var(--accent);
  padding-left: var(--space-4);
  font-style: italic;
  color: var(--text-soft);
  margin: var(--space-6) 0;
}
.post-content code {
  background: var(--bg-subtle);
  padding: 2px 6px;
  border-radius: var(--r-sm);
  font-family: var(--font-mono);
  font-size: 0.9em;
}
.post-content .sunda-quote {
  font-family: var(--font-sunda);
  font-size: 1.5em;
  text-align: center;
  display: block;
  margin: var(--space-6) 0;
  color: var(--accent);
}
.post-meta-bar {
  display: flex;
  gap: var(--space-4);
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: var(--space-8);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--border);
}

/* ============================================
   AKSARA CHART (panduan page)
   ============================================ */

.aksara-chart {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
  gap: var(--space-3);
  margin: var(--space-6) 0;
}

.aksara-cell {
  padding: var(--space-4);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  text-align: center;
  cursor: pointer;
  transition: all 150ms ease;
}
.aksara-cell:hover {
  background: var(--accent-soft);
  border-color: var(--accent);
  transform: translateY(-2px);
}
.aksara-cell .aksara-char {
  font-family: var(--font-sunda);
  font-size: 2.4rem;
  color: var(--accent);
  line-height: 1;
  display: block;
  margin-bottom: var(--space-2);
}
.aksara-cell .aksara-name {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text);
}
.aksara-cell .aksara-romaji {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

/* ============================================
   TOAST
   ============================================ */

.toast {
  position: fixed;
  bottom: var(--space-6);
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--text);
  color: var(--bg);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-lg);
  font-size: 0.9rem;
  font-weight: 500;
  z-index: 200;
  transition: transform 300ms cubic-bezier(0.34, 1.56, 0.64, 1);
  opacity: 0;
  pointer-events: none;
}
.toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

/* ============================================
   PAGE-SPECIFIC: STATIC PAGES
   ============================================ */

.page-hero {
  padding: var(--space-12) 0 var(--space-8);
  border-bottom: 1px solid var(--border);
  background: var(--bg-subtle);
}
.page-hero h1 { margin-bottom: var(--space-3); }
.page-hero p { font-size: 1.125rem; color: var(--text-soft); max-width: 720px; margin: 0; }

.prose {
  max-width: 760px;
  margin: 0 auto;
  padding: var(--space-12) 0;
}
.prose h2 { margin-top: var(--space-8); }
.prose h3 { margin-top: var(--space-6); }
.prose p { font-size: 1.05rem; line-height: 1.75; }
.prose ul, .prose ol { font-size: 1.05rem; line-height: 1.75; padding-left: var(--space-6); }
.prose li { margin-bottom: var(--space-2); }

/* ============================================
   ANIMATIONS
   ============================================ */

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.hero > .container > * {
  opacity: 0;
  animation: fadeUp 600ms ease forwards;
}
.hero .hero-eyebrow { animation-delay: 0ms; }
.hero h1 { animation-delay: 100ms; }
.hero .hero-subtitle { animation-delay: 200ms; }
.hero .translator { animation-delay: 300ms; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* ============================================
   PERFORMANCE OPTIMIZATIONS
   content-visibility tells browser to skip
   rendering off-screen sections until needed,
   dramatically improving mobile LCP/INP scores
   ============================================ */

.features,
.how-it-works,
.faq-section,
.site-footer {
  content-visibility: auto;
  contain-intrinsic-size: auto 500px;
}

/* Reserve space for images/iframes to prevent layout shift */
img[loading="lazy"] {
  background-color: var(--bg-subtle);
}

/* GPU-accelerate transforms used in hover/animations */
.feature,
.post-card,
.aksara-cell,
.btn,
.kb-key {
  will-change: auto;
}
.feature:hover,
.post-card:hover,
.aksara-cell:hover {
  will-change: transform;
}

/* ============================================
   USE-CASE GRID (homepage Manfaat section)
   ============================================ */
.use-case-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-4);
  margin-top: var(--space-6);
}

.use-case-card {
  padding: var(--space-6);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  transition: all 200ms ease;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.use-case-card:hover {
  transform: translateY(-3px);
  border-color: var(--accent);
  box-shadow: var(--shadow-md);
}
.use-case-card .feature-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--r-md);
  background: var(--accent-soft);
  color: var(--accent);
  margin-bottom: var(--space-2) !important;
}
.use-case-card .feature-icon i { width: 22px; height: 22px; }
.use-case-card h3 {
  font-size: 1.0625rem !important;
  margin: 0 0 var(--space-1) !important;
  line-height: 1.3;
}
.use-case-card p {
  font-size: 0.95rem !important;
  color: var(--text-soft) !important;
  margin: 0 !important;
  line-height: 1.55;
}

/* ============================================
   HOW-TO ALTERNATING SECTIONS (with illustrations)
   ============================================ */
.how-section { padding: var(--space-12) 0; }
.how-section + .how-section { border-top: 1px solid var(--border); }
.how-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  align-items: center;
  max-width: 1080px;
  margin: 0 auto;
}
.how-row.reverse { direction: rtl; }
.how-row.reverse > * { direction: ltr; }
.how-row .how-text { padding: var(--space-2) 0; }
.how-row .how-text h2 { margin-bottom: var(--space-4); }
.how-row .how-text p { font-size: 1.05rem; line-height: 1.75; color: var(--text-soft); }
.how-row .how-text ul { list-style: none; padding: 0; margin: var(--space-4) 0 0; }
.how-row .how-text ul li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-2) 0;
  font-size: 1rem;
  color: var(--text);
  line-height: 1.6;
}
.how-row .how-text ul li::before {
  content: '';
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  margin-top: 3px;
  background-color: var(--accent);
  -webkit-mask: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'><polyline points='20 6 9 17 4 12'/></svg>") center/contain no-repeat;
  mask: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'><polyline points='20 6 9 17 4 12'/></svg>") center/contain no-repeat;
}
.how-illustration {
  width: 100%;
  height: auto;
  border-radius: var(--r-lg);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  padding: var(--space-6);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}
@media (max-width: 760px) {
  .how-row { grid-template-columns: 1fr; gap: var(--space-6); }
  .how-row.reverse { direction: ltr; }
  .how-illustration { padding: var(--space-4); }
}

/* ============================================
   HEADER HIDE-ON-SCROLL
   Smoothly hides header when scrolling down,
   reveals on scroll up.
   ============================================ */
.site-header {
  transition: transform 280ms cubic-bezier(0.4, 0, 0.2, 1);
  will-change: transform;
}
.site-header.header-hidden {
  transform: translateY(-100%);
}

/* ============================================
   KEYBOARD PAGE: keyboard LEFT, typing RIGHT
   ============================================ */
.kb-page-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}
@media (min-width: 880px) {
  .kb-page-layout {
    grid-template-columns: 4fr 6fr;
    gap: var(--space-6);
    align-items: start;
  }
  /* Visual reorder via CSS order without changing HTML:
     HTML has typing first, then keyboard.
     Display: keyboard on left (order 1), typing on right (order 2). */
  .kb-page-layout > div:nth-child(1) { order: 2; }
  .kb-page-layout > div:nth-child(2) { order: 1; }

  .kb-page-layout .kb-display-card {
    position: sticky;
    top: calc(var(--header-h) + var(--space-4));
  }
}

/* Compact key sizes for keyboard page */
.kb-large .kb-key-lg {
  min-height: 64px;
  padding: var(--space-2);
}
.kb-large .kb-key-char { font-size: 1.4rem; margin-bottom: 2px; }
.kb-large .kb-key-name { font-size: 0.7rem; }
.kb-large .kb-grid {
  grid-template-columns: repeat(auto-fill, minmax(64px, 1fr));
  gap: 6px;
}
.kb-large .kb-bottom-row .kb-key-lg { min-height: 42px; }
.kb-display-text {
  min-height: 140px !important;
  font-size: 1.6rem !important;
}
@media (max-width: 640px) {
  .kb-display-text { font-size: 1.35rem !important; min-height: 110px !important; }
  .kb-large .kb-key-lg { min-height: 52px; }
  .kb-large .kb-key-char { font-size: 1.15rem; }
  .kb-large .kb-grid {
    grid-template-columns: repeat(auto-fill, minmax(54px, 1fr));
    gap: 4px;
  }
}

/* ============================================
   BLOG POST CARD: vector aksara feature
   ============================================ */
.post-card-cover {
  aspect-ratio: 16 / 9;
  background: linear-gradient(135deg, var(--accent-soft) 0%, var(--amber-soft) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}
.post-card-cover::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(45, 95, 63, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(200, 127, 42, 0.08) 0%, transparent 50%);
}
.post-card-cover .cover-aksara {
  position: relative;
  z-index: 1;
  font-family: var(--font-sunda);
  color: var(--accent);
  text-align: center;
  line-height: 1;
}
.post-card-cover .cover-aksara.size-xl { font-size: 4.5rem; }
.post-card-cover .cover-aksara.size-lg { font-size: 3.5rem; }
.post-card-cover .cover-aksara.size-md { font-size: 2.75rem; }
.post-card-cover .cover-aksara.size-sm { font-size: 2rem; letter-spacing: 0.05em; }
.post-card-cover .cover-aksara.bilingual {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}
.post-card-cover .cover-aksara .cover-label {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  opacity: 0.7;
}