/* ==========================================================================
   Dalleeni (دليني | Transit IQ Baghdad) - Official Direct Install Page
   Aesthetic: High-End Minimalist Dark Utility (Anti-AI Crafted Design)
   ========================================================================== */

:root {
  /* Matte Carbon & Dark Slate Palette */
  --bg-canvas: #090C10;
  --bg-surface: #12161F;
  --bg-elevated: #181D27;
  --bg-card-highlight: #1F2532;
  --bg-input: #0B0E14;

  /* Crisp Structural Hairline Borders */
  --border-subtle: #252B37;
  --border-muted: #1A1F29;
  --border-highlight: #373E4D;

  /* Authentic Spotify & Transit Green */
  --accent-green: #1ED760;
  --accent-green-hover: #1fdf64;
  --accent-green-active: #17b850;
  --text-on-accent: #000000;

  /* Semantic Accents */
  --accent-blue: #58A6FF;
  --accent-amber: #D29922;
  --accent-red: #F85149;

  /* Typography Colors */
  --text-primary: #F0F6FC;
  --text-secondary: #9DA7B3;
  --text-muted: #656E7B;

  /* Geometry */
  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-pill: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 20px rgba(30, 215, 96, 0.15);

  /* Motion */
  --ease-standard: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-snappy: cubic-bezier(0.2, 0, 0, 1);
  --duration-micro: 120ms;
  --duration-normal: 240ms;
  --duration-moderate: 350ms;

  --font-family: 'IBM Plex Sans Arabic', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* Reset & Box Sizing */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

html {
  font-size: 16px;
  line-height: 1.5;
  direction: rtl;
  text-align: right;
  background-color: var(--bg-canvas);
  color: var(--text-primary);
  font-family: var(--font-family);
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  align-items: center;
  overflow-x: hidden;
  position: relative;
  background-color: var(--bg-canvas);
  /* Subtle, natural geometric texture instead of generic glowing AI gradient blobs */
  background-image: linear-gradient(to bottom, #0D1117 0%, #090C10 100%);
}

/* Page Container */
.page-container {
  width: 100%;
  max-width: 600px;
  margin: 0 auto;
  padding: 24px 18px 48px 18px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* Header */
.header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-muted);
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-primary);
}

.brand-icon-wrapper {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
  flex-shrink: 0;
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-size: 1.12rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
}

.brand-tagline {
  font-size: 0.76rem;
  color: var(--text-secondary);
}

.header-nav-link {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--accent-green);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(30, 215, 96, 0.25);
  background: rgba(30, 215, 96, 0.05);
  transition: all var(--duration-micro) var(--ease-snappy);
}

.header-nav-link:hover {
  background: rgba(30, 215, 96, 0.12);
  border-color: var(--accent-green);
}

/* Hero Section */
.hero-section {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 6px 0 2px 0;
}

.hero-title {
  font-size: 1.65rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.35;
  letter-spacing: -0.02em;
}

.hero-title span {
  color: var(--accent-green);
}

.hero-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Segmented Tabs Control */
.platform-tabs-nav {
  position: relative;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-pill);
  padding: 4px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4px;
}

.tab-btn {
  position: relative;
  z-index: 2;
  background: transparent;
  border: none;
  border-radius: var(--radius-pill);
  padding: 9px 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: inherit;
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  transition: color var(--duration-normal) var(--ease-standard), transform var(--duration-micro) var(--ease-snappy);
}

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

.tab-btn:active {
  transform: scale(0.98);
}

.tab-btn.active {
  color: var(--text-on-accent);
}

.tab-btn svg {
  width: 17px;
  height: 17px;
  flex-shrink: 0;
}

.tabs-slider-highlight {
  position: absolute;
  top: 4px;
  bottom: 4px;
  right: 4px;
  width: calc((100% - 16px) / 3);
  background: var(--accent-green);
  border-radius: var(--radius-pill);
  z-index: 1;
  transition: transform var(--duration-normal) var(--ease-standard);
  pointer-events: none;
}

/* Panels Viewport */
.panels-viewport {
  position: relative;
  min-height: 360px;
}

.panel-view {
  display: none;
  flex-direction: column;
  gap: 16px;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity var(--duration-normal) var(--ease-standard), transform var(--duration-normal) var(--ease-standard);
}

.panel-view.active {
  display: flex;
  opacity: 1;
  transform: translateY(0);
}

/* Main Card */
.main-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 22px 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  box-shadow: var(--shadow-sm);
}

.card-header-flex {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  padding-bottom: 4px;
}

.platform-heading {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
}

.platform-heading svg {
  color: var(--accent-green);
}

.status-badge {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  background: var(--bg-elevated);
  color: var(--text-secondary);
  border: 1px solid var(--border-muted);
}

/* Metadata Technical Spec Box */
.metadata-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  background: var(--bg-input);
  border: 1px solid var(--border-muted);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
}

.meta-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.meta-label {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-weight: 500;
}

.meta-value {
  font-size: 0.86rem;
  font-weight: 700;
  color: var(--text-primary);
}

/* Buttons */
.btn-primary-pill {
  width: 100%;
  background: var(--accent-green);
  color: var(--text-on-accent);
  border: none;
  border-radius: var(--radius-pill);
  padding: 15px 24px;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 700;
  text-decoration: none;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  cursor: pointer;
  transition: background-color var(--duration-micro) var(--ease-snappy), 
              transform var(--duration-micro) var(--ease-snappy);
}

.btn-primary-pill:hover {
  background: var(--accent-green-hover);
  transform: translateY(-1px);
}

.btn-primary-pill:active {
  background: var(--accent-green-active);
  transform: scale(0.98);
}

.btn-primary-pill svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.btn-secondary-pill {
  width: 100%;
  background: var(--bg-elevated);
  color: var(--text-primary);
  border: 1px solid var(--border-highlight);
  border-radius: var(--radius-pill);
  padding: 11px 18px;
  font-family: inherit;
  font-size: 0.88rem;
  font-weight: 600;
  text-decoration: none;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  cursor: pointer;
  transition: background var(--duration-micro) var(--ease-snappy), 
              border-color var(--duration-micro) var(--ease-snappy);
}

.btn-secondary-pill:hover {
  background: var(--bg-card-highlight);
  border-color: var(--text-secondary);
}

/* SHA-256 Box */
.sha-box {
  background: var(--bg-input);
  border: 1px solid var(--border-muted);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.sha-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.74rem;
  color: var(--text-muted);
}

.sha-title {
  display: flex;
  align-items: center;
  gap: 5px;
  font-weight: 600;
  color: var(--text-secondary);
}

.sha-content-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.sha-code {
  flex: 1;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.74rem;
  color: var(--accent-blue);
  word-break: break-all;
  direction: ltr;
  text-align: left;
  user-select: all;
  background: rgba(0, 0, 0, 0.25);
  padding: 6px 8px;
  border-radius: var(--radius-xs);
  border: 1px solid var(--border-muted);
}

.btn-icon-copy {
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 6px 12px;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.76rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 5px;
  cursor: pointer;
  flex-shrink: 0;
  transition: all var(--duration-micro) var(--ease-snappy);
}

.btn-icon-copy:hover {
  background: var(--bg-card-highlight);
  border-color: var(--border-highlight);
}

.btn-icon-copy.copied {
  background: var(--accent-green);
  color: var(--text-on-accent);
  border-color: var(--accent-green);
}

/* Security Notice */
.security-notice {
  background: rgba(210, 153, 34, 0.06);
  border: 1px solid rgba(210, 153, 34, 0.25);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  display: flex;
  gap: 10px;
  align-items: flex-start;
}

.security-icon {
  color: var(--accent-amber);
  flex-shrink: 0;
  margin-top: 2px;
}

.security-title {
  font-size: 0.84rem;
  font-weight: 700;
  color: #E3B341;
  display: block;
  margin-bottom: 2px;
}

.security-desc {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* iOS Safari Guide */
.safari-notice {
  background: rgba(88, 166, 255, 0.06);
  border: 1px solid rgba(88, 166, 255, 0.25);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.safari-notice svg {
  color: var(--accent-blue);
  flex-shrink: 0;
}

.steps-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.step-card {
  background: var(--bg-input);
  border: 1px solid var(--border-muted);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.step-num-badge {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.84rem;
  font-weight: 700;
  color: var(--accent-green);
  flex-shrink: 0;
}

.step-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.step-title {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-primary);
}

.step-desc {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.step-action-visual {
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-blue);
  flex-shrink: 0;
}

/* Desktop QR Code */
.desktop-qr-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 14px;
  padding: 8px 0;
}

.qr-frame {
  background: #FFFFFF;
  padding: 14px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  justify-content: center;
}

.qr-frame canvas, .qr-frame img {
  display: block;
}

.qr-instruction {
  font-size: 0.88rem;
  color: var(--text-secondary);
  max-width: 360px;
  line-height: 1.5;
}

.link-copy-group {
  width: 100%;
  max-width: 420px;
  display: flex;
  gap: 8px;
}

.input-link {
  flex: 1;
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-pill);
  padding: 9px 16px;
  font-family: inherit;
  font-size: 0.84rem;
  color: var(--text-secondary);
  direction: ltr;
  text-align: left;
  outline: none;
  user-select: all;
}

.input-link:focus {
  border-color: var(--accent-green);
  color: var(--text-primary);
}

/* Pre-installed Standalone Banner */
.installed-success-card {
  display: none;
  background: rgba(30, 215, 96, 0.08);
  border: 1px solid rgba(30, 215, 96, 0.35);
  border-radius: var(--radius-lg);
  padding: 20px;
  text-align: center;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.installed-success-card.show {
  display: flex;
}

.installed-icon-circle {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--accent-green);
  color: var(--text-on-accent);
  display: flex;
  align-items: center;
  justify-content: center;
}

/* FAQ Accordion Section */
.trust-section {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 4px;
}

.section-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.section-title svg {
  color: var(--accent-green);
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

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

.faq-question-btn {
  width: 100%;
  background: transparent;
  border: none;
  padding: 14px 16px;
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
  text-align: right;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  cursor: pointer;
}

.faq-chevron {
  color: var(--text-muted);
  transition: transform var(--duration-normal) var(--ease-standard);
  flex-shrink: 0;
}

.faq-item.open .faq-chevron {
  transform: rotate(180deg);
  color: var(--accent-green);
}

.faq-answer-wrapper {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--duration-moderate) var(--ease-standard);
}

.faq-item.open .faq-answer-wrapper {
  grid-template-rows: 1fr;
}

.faq-answer-inner {
  overflow: hidden;
}

.faq-answer-content {
  padding: 0 16px 14px 16px;
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.6;
  border-top: 1px solid var(--border-muted);
  padding-top: 10px;
}

/* Footer */
.page-footer {
  text-align: center;
  padding: 18px 0 6px 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
  color: var(--text-muted);
  font-size: 0.76rem;
  border-top: 1px solid var(--border-muted);
}

.footer-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.footer-link {
  color: var(--text-secondary);
  text-decoration: none;
}

.footer-link:hover {
  color: var(--accent-green);
}

/* Toast Notice */
.toast-notice {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%) translateY(80px);
  background: var(--bg-card-highlight);
  border: 1px solid var(--accent-green);
  color: var(--text-primary);
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  font-size: 0.84rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
  box-shadow: var(--shadow-md);
  z-index: 9999;
  opacity: 0;
  pointer-events: none;
  transition: transform var(--duration-normal) var(--ease-standard), opacity var(--duration-normal) var(--ease-standard);
}

.toast-notice.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

.toast-notice svg {
  color: var(--accent-green);
}

/* Accessibility Focus */
a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 2px solid var(--accent-green);
  outline-offset: 2px;
}

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