/* ==========================================================================
   AI Room Landing Website — Styles
   Design Direction: Warm Obsidian / Linen palette + Plus Jakarta Sans & IBM Plex Sans Arabic
   ========================================================================== */

:root {
  /* Dark Theme (Default) */
  --bg-primary: #121316;
  --bg-surface: #181A20;
  --bg-surface-elevated: #20232B;
  --bg-surface-subtle: #14161B;
  
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-medium: rgba(255, 255, 255, 0.14);
  --border-strong: rgba(255, 255, 255, 0.24);

  --text-primary: #F4F3EF;
  --text-secondary: #A1A09A;
  --text-tertiary: #6E6D67;

  /* Brand Accents from AI Room Signature Hub */
  --accent-iris: #7C6EF6;
  --accent-iris-light: #9B8FF9;
  --accent-iris-glow: rgba(124, 110, 246, 0.18);
  --accent-teal: #2DD4BF;
  --accent-amber: #F5A623;
  --accent-coral: #F2685A;
  --accent-stop: #EF4444;
  --accent-stop-glow: rgba(239, 68, 68, 0.25);

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 40px rgba(124, 110, 246, 0.12);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  --container-max: 1180px;
  --font-main: "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-arabic: "Cairo", var(--font-main);
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;

  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="light"] {
  --bg-primary: #FAF8F5;
  --bg-surface: #FFFFFF;
  --bg-surface-elevated: #F3F0EA;
  --bg-surface-subtle: #F7F5F0;

  --border-subtle: rgba(24, 26, 32, 0.08);
  --border-medium: rgba(24, 26, 32, 0.14);
  --border-strong: rgba(24, 26, 32, 0.24);

  --text-primary: #181A20;
  --text-secondary: #63615C;
  --text-tertiary: #8E8B83;

  --accent-iris: #6050EA;
  --accent-iris-light: #7C6EF6;
  --accent-iris-glow: rgba(96, 80, 234, 0.12);
  --accent-teal: #0D9488;
  --accent-amber: #D97706;
  --accent-coral: #E11D48;
  --accent-stop: #DC2626;
  --accent-stop-glow: rgba(220, 38, 38, 0.2);

  --shadow-sm: 0 1px 3px rgba(24, 26, 32, 0.05);
  --shadow-md: 0 4px 12px rgba(24, 26, 32, 0.08);
  --shadow-lg: 0 12px 32px rgba(24, 26, 32, 0.12);
  --shadow-glow: 0 0 35px rgba(96, 80, 234, 0.08);
}

[dir="rtl"] {
  font-family: var(--font-arabic);
}

/* Base Styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-family: var(--font-main);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background-color var(--transition-base), color var(--transition-base);
}

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

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

/* Layout Utilities */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: 24px;
}

.section {
  padding-block: 80px;
}

@media (min-width: 768px) {
  .section {
    padding-block: 110px;
  }
}

/* Header & Navigation */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  background: rgba(18, 19, 22, 0.85);
  border-bottom: 1px solid var(--border-subtle);
  transition: background-color var(--transition-base), border-color var(--transition-base);
}

[data-theme="light"] .site-header {
  background: rgba(250, 248, 245, 0.85);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand-lockup {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}

.brand-icon {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.brand-title {
  display: flex;
  align-items: center;
  gap: 4px;
}

.brand-title .brand-ai {
  color: var(--accent-iris);
}

.brand-status-badge {
  font-size: 0.6875rem;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  background: rgba(245, 166, 35, 0.12);
  color: var(--accent-amber);
  border: 1px solid rgba(245, 166, 35, 0.28);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-inline-start: 4px;
}

.header-controls {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-links {
  display: none;
  align-items: center;
  gap: 28px;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-secondary);
}

@media (min-width: 768px) {
  .nav-links {
    display: flex;
  }
}

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

.btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
  background: var(--bg-surface);
  transition: all var(--transition-fast);
}

.btn-icon:hover {
  color: var(--text-primary);
  border-color: var(--border-medium);
  background: var(--bg-surface-elevated);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 0.9375rem;
  font-weight: 600;
  padding: 12px 22px;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent-iris);
  color: #FFFFFF;
  box-shadow: 0 2px 10px var(--accent-iris-glow);
}

.btn-primary:hover {
  background: var(--accent-iris-light);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px var(--accent-iris-glow);
}

.btn-secondary {
  background: var(--bg-surface);
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
}

.btn-secondary:hover {
  background: var(--bg-surface-elevated);
  border-color: var(--border-medium);
  transform: translateY(-1px);
}

/* Hero Section */
.hero-section {
  padding-top: 50px;
  padding-bottom: 70px;
  position: relative;
  overflow: hidden;
}

.hero-badge-wrap {
  display: flex;
  justify-content: center;
  margin-bottom: 24px;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.pill-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: var(--accent-teal);
  box-shadow: 0 0 8px var(--accent-teal);
}

.hero-content {
  text-align: center;
  max-width: 860px;
  margin-inline: auto;
  margin-bottom: 48px;
}

.signature-bar {
  display: flex;
  justify-content: center;
  gap: 6px;
  margin-bottom: 20px;
}

.signature-bar span {
  width: 28px;
  height: 4px;
  border-radius: 2px;
}

.signature-bar .sig-iris { background-color: var(--accent-iris); }
.signature-bar .sig-teal { background-color: var(--accent-teal); }
.signature-bar .sig-amber { background-color: var(--accent-amber); }
.signature-bar .sig-coral { background-color: var(--accent-coral); }

.hero-title {
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: 22px;
}

.hero-subtitle {
  font-size: clamp(1.0625rem, 2vw, 1.25rem);
  line-height: 1.6;
  color: var(--text-secondary);
  max-width: 680px;
  margin-inline: auto;
  margin-bottom: 32px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin-bottom: 28px;
}

.hero-trust-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 20px;
  font-size: 0.875rem;
  color: var(--text-tertiary);
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.trust-check {
  color: var(--accent-teal);
  font-weight: bold;
}

/* Hero Product Canvas (Strict Product Truth UI) */
.product-preview-wrap {
  max-width: 1020px;
  margin-inline: auto;
  border-radius: var(--radius-xl);
  padding: 8px;
  background: linear-gradient(180deg, var(--border-medium) 0%, transparent 100%);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.product-window {
  background: var(--bg-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  overflow: hidden;
}

.window-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  background: var(--bg-surface-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

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

.window-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--border-medium);
}

.window-room-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.875rem;
  font-weight: 600;
}

.room-tag {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
  background: rgba(45, 212, 191, 0.12);
  color: var(--accent-teal);
  border: 1px solid rgba(45, 212, 191, 0.25);
}

.window-controls-meta {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  font-family: var(--font-mono);
}

/* Room Layout Preview */
.room-body-grid {
  display: grid;
  grid-template-columns: 1fr;
}

@media (min-width: 860px) {
  .room-body-grid {
    grid-template-columns: 1fr 280px;
  }
}

.room-chat-pane {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.msg-row {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.msg-header {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.8125rem;
}

.author-name {
  font-weight: 700;
  color: var(--text-primary);
}

.author-role {
  padding: 1px 6px;
  border-radius: var(--radius-sm);
  font-size: 0.6875rem;
  font-weight: 600;
  background: var(--bg-surface-elevated);
  color: var(--text-secondary);
}

.author-role.ai-badge {
  background: rgba(124, 110, 246, 0.14);
  color: var(--accent-iris);
  border: 1px solid rgba(124, 110, 246, 0.25);
}

.msg-time {
  color: var(--text-tertiary);
  margin-inline-start: auto;
}

.msg-bubble {
  padding: 14px 16px;
  border-radius: var(--radius-md);
  font-size: 0.9375rem;
  line-height: 1.55;
}

.msg-bubble.user-bubble {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
}

.msg-bubble.ai-bubble {
  background: var(--bg-surface-subtle);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
}

.summon-slash {
  color: var(--accent-iris);
  font-family: var(--font-mono);
  font-weight: 700;
}

/* Thinking & Real Stop Authority Line */
.thinking-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  background: rgba(239, 68, 68, 0.05);
  border: 1px solid rgba(239, 68, 68, 0.18);
  font-size: 0.8125rem;
}

.thinking-status {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-secondary);
}

.spinner {
  width: 14px;
  height: 14px;
  border: 2px solid var(--accent-iris);
  border-top-color: transparent;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.btn-stop {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: var(--radius-sm);
  background: var(--accent-stop);
  color: #FFFFFF;
  font-size: 0.75rem;
  font-weight: 700;
  box-shadow: 0 2px 8px var(--accent-stop-glow);
  transition: all var(--transition-fast);
}

.btn-stop:hover {
  filter: brightness(1.1);
  transform: translateY(-1px);
}

.stop-owner-note {
  font-size: 0.6875rem;
  color: var(--text-tertiary);
  margin-inline-start: 6px;
}

.receipt-tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-family: var(--font-mono);
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  margin-top: 8px;
}

/* Sidebar: Parked AIs & Permissions */
.room-sidebar-pane {
  background: var(--bg-surface-subtle);
  border-top: 1px solid var(--border-subtle);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

@media (min-width: 860px) {
  .room-sidebar-pane {
    border-top: none;
    border-inline-start: 1px solid var(--border-subtle);
  }
}

.sidebar-title {
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-tertiary);
}

.ai-item-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 12px;
  border-radius: var(--radius-md);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
}

.ai-item-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8125rem;
  font-weight: 600;
}

.status-badge {
  font-size: 0.6875rem;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  font-weight: 600;
}

.status-badge.admitted {
  background: rgba(45, 212, 191, 0.12);
  color: var(--accent-teal);
}

.status-badge.parked {
  background: rgba(245, 166, 35, 0.12);
  color: var(--accent-amber);
}

.ai-item-detail {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

/* Section Common Titles */
.section-header {
  text-align: center;
  max-width: 680px;
  margin-inline: auto;
  margin-bottom: 56px;
}

.section-tag {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-iris);
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(1.875rem, 3.5vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.2;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.section-description {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Feature Grids */
.grid-3 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

@media (min-width: 768px) {
  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

.grid-2x2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

@media (min-width: 768px) {
  .grid-2x2 {
    grid-template-columns: repeat(2, 1fr);
  }
}

.card {
  padding: 32px;
  border-radius: var(--radius-lg);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
}

.card:hover {
  transform: translateY(-2px);
  border-color: var(--border-medium);
  box-shadow: var(--shadow-md);
}

.card-icon-wrap {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  font-size: 1.25rem;
}

.card-title {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.015em;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.card-text {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Safety Section Accent Pillars */
.safety-card {
  position: relative;
  overflow: hidden;
}

.safety-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--card-accent, var(--border-subtle));
}

.safety-card.card-iris { --card-accent: var(--accent-iris); }
.safety-card.card-teal { --card-accent: var(--accent-teal); }
.safety-card.card-amber { --card-accent: var(--accent-amber); }
.safety-card.card-coral { --card-accent: var(--accent-coral); }

/* Roadmap & Planned Badges */
.planned-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  background: rgba(99, 102, 241, 0.12);
  color: var(--accent-iris);
  border: 1px solid rgba(99, 102, 241, 0.28);
  margin-bottom: 14px;
  align-self: flex-start;
}

[data-theme="light"] .planned-badge {
  background: rgba(99, 102, 241, 0.1);
  color: #4F46E5;
}

.roadmap-card {
  position: relative;
  background: var(--bg-surface);
  border: 1px dashed var(--border-medium);
  border-radius: var(--radius-lg);
  padding: 30px;
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
}

.roadmap-card:hover {
  border-style: solid;
  border-color: var(--accent-iris);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* Early Access / CTA Block */
.cta-box {
  padding: 56px 32px;
  border-radius: var(--radius-xl);
  background: linear-gradient(180deg, var(--bg-surface-elevated) 0%, var(--bg-surface) 100%);
  border: 1px solid var(--border-subtle);
  text-align: center;
  max-width: 860px;
  margin-inline: auto;
  box-shadow: var(--shadow-lg);
}

.cta-box .section-title {
  margin-bottom: 16px;
}

.cta-box .section-description {
  max-width: 580px;
  margin-inline: auto;
  margin-bottom: 36px;
}

.cta-form-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

/* Early Access Form */
.early-access-form {
  max-width: 580px;
  margin-inline: auto;
  text-align: start;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-primary);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 12px 14px;
  border-radius: var(--radius-md);
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.9375rem;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--accent-iris);
  box-shadow: 0 0 0 3px var(--accent-iris-glow);
}

.form-row-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

@media (min-width: 600px) {
  .form-row-2 {
    grid-template-columns: 1fr 1fr;
  }
}

.form-submit-btn {
  width: 100%;
  padding: 14px 24px;
  font-size: 1rem;
  font-weight: 700;
  border-radius: var(--radius-md);
  margin-top: 8px;
}

.form-success-box {
  display: none;
  padding: 24px 20px;
  border-radius: var(--radius-md);
  background: rgba(45, 212, 191, 0.12);
  border: 1px solid var(--accent-teal);
  color: var(--text-primary);
  text-align: center;
  margin-top: 16px;
}

.form-success-title {
  color: var(--accent-teal);
  font-weight: 700;
  font-size: 1.1rem;
  margin-bottom: 6px;
}


/* Site Footer */
.site-footer {
  margin-top: auto;
  border-top: 1px solid var(--border-subtle);
  padding-block: 40px 32px;
  background: var(--bg-surface-subtle);
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.footer-container {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

@media (min-width: 768px) {
  .footer-container {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  font-size: 0.875rem;
}

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

.draft-notice {
  font-size: 0.75rem;
  color: var(--accent-amber);
  margin-inline-start: 4px;
}

/* RTL Specific adjustments */
[dir="rtl"] .hero-title,
[dir="rtl"] .section-title {
  letter-spacing: normal;
}

[dir="rtl"] .pill-dot {
  margin-left: 0;
}