/* ============================================================
   SAVEVAY — RESPONSIVE MINIMALIST DESIGN SYSTEM
   Optimized for High Intent Social Media Video Downloader
   Mobile-First & Desktop-Refined
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  --bg-primary: #070709;
  --bg-surface: #0f0f13;
  --bg-card: rgba(18, 18, 24, 0.85);
  --bg-elevated: #16161d;
  --bg-input: rgba(0, 0, 0, 0.55);
  
  --border-subtle: rgba(255, 255, 255, 0.06);
  --border-default: rgba(255, 255, 255, 0.09);
  --border-hover: rgba(255, 255, 255, 0.2);
  --border-active: #3b82f6;
  
  --text-primary: #ffffff;
  --text-secondary: #94949e;
  --text-muted: #62626e;
  --text-dim: #444450;
  
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --accent-soft: rgba(59, 130, 246, 0.12);
  
  --emerald: #10b981;
  --rose: #f43f5e;
  --cyan: #06b6d4;
  
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', Consolas, Menlo, monospace;
  
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-full: 9999px;
  
  --shadow-card: 0 16px 40px rgba(0, 0, 0, 0.6);
  --shadow-dropdown: 0 16px 48px rgba(0, 0, 0, 0.9);
  
  --transition: 0.16s cubic-bezier(0.16, 1, 0.3, 1);
}

/* ── Reset & Base ── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  position: relative;
  line-height: 1.5;
  background-color: var(--bg-primary);
  -webkit-tap-highlight-color: transparent;
}

/* Ambient radial illumination */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100vw;
  max-width: 900px;
  height: 420px;
  background: radial-gradient(circle at 50% 0%, rgba(59, 130, 246, 0.12), rgba(139, 92, 246, 0.04) 50%, transparent 75%);
  pointer-events: none;
  z-index: 0;
}

.material-symbols-rounded {
  font-family: 'Material Symbols Rounded', sans-serif;
  font-weight: normal;
  font-style: normal;
  font-size: 18px;
  line-height: 1;
  letter-spacing: normal;
  text-transform: none;
  display: inline-block;
  white-space: nowrap;
  word-wrap: normal;
  direction: ltr;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: 'liga';
  vertical-align: middle;
  flex-shrink: 0;
}

/* ── Layout & Containers ── */
.container {
  width: 100%;
  max-width: 880px;
  margin: 0 auto;
  padding: 0 20px;
  position: relative;
  z-index: 1;
}
@media (max-width: 640px) {
  .container {
    padding: 0 16px;
  }
}

.hidden { display: none !important; }
.font-mono { font-family: var(--font-mono); }

/* ── Top Brand Header ── */
.top-header {
  padding: 24px 20px 4px;
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  z-index: 10;
  background: transparent;
  border: none;
}
.brand-link {
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
  padding: 6px 18px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: transform var(--transition), border-color var(--transition), background var(--transition);
}
.brand-link:hover {
  transform: translateY(-1px);
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.12);
}
.brand-link:active {
  transform: scale(0.97);
}
.brand-name {
  font-size: 19px;
  font-weight: 800;
  letter-spacing: -0.4px;
  color: #ffffff;
  line-height: 1;
}
.logo-icon svg {
  width: 16px;
  height: 16px;
}

@media (max-width: 640px) {
  .top-header {
    padding: 18px 16px 2px;
  }
}

/* ── Hero Section ── */
.hero {
  padding: 20px 0 28px;
  text-align: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  background: rgba(59, 130, 246, 0.08);
  border: 1px solid rgba(59, 130, 246, 0.2);
  color: #60a5fa;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.2px;
  margin-bottom: 14px;
}
.badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #60a5fa;
  box-shadow: 0 0 8px #60a5fa;
}

.hero-title {
  font-size: clamp(23px, 5.5vw, 36px);
  font-weight: 800;
  letter-spacing: -0.8px;
  line-height: 1.18;
  color: #ffffff;
  margin-bottom: 8px;
  padding: 0 4px;
}
.hero-desc {
  font-size: 14px;
  color: var(--text-secondary);
  max-width: 520px;
  margin: 0 auto 22px;
  line-height: 1.5;
  padding: 0 8px;
}

@media (max-width: 640px) {
  .hero {
    padding: 14px 0 18px;
  }
  .hero-badge {
    font-size: 11px;
    padding: 3px 10px;
    margin-bottom: 10px;
  }
  .hero-title {
    font-size: clamp(21px, 6vw, 27px);
    letter-spacing: -0.5px;
  }
  .hero-desc {
    font-size: 13px;
    margin-bottom: 18px;
  }
}

/* ── Modern Command Center Card ── */
.command-container {
  max-width: 620px;
  margin: 0 auto 28px;
}

.command-card {
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
  padding: 16px;
  box-shadow: var(--shadow-card);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.command-card:focus-within {
  border-color: rgba(59, 130, 246, 0.4);
  box-shadow: 0 20px 48px rgba(0, 0, 0, 0.7), 0 0 0 1px rgba(59, 130, 246, 0.2);
}

/* Card Meta Header (Auto-detect + Supported tags) */
.card-meta-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 12px;
}

.platform-indicator {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  font-size: 11.5px;
  font-weight: 600;
  color: var(--text-secondary);
  white-space: nowrap;
  user-select: none;
  transition: all var(--transition);
}
.platform-indicator.detected {
  color: #ffffff;
  background: rgba(59, 130, 246, 0.18);
  border-color: rgba(59, 130, 246, 0.45);
  box-shadow: 0 0 12px rgba(59, 130, 246, 0.2);
}

.supported-tags {
  display: flex;
  align-items: center;
  gap: 6px;
}
.tag-chip {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.03);
  padding: 3px 8px;
  border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, 0.04);
}

/* Full Width Clean Input Row */
.input-row {
  display: flex;
  align-items: center;
  gap: 10px;
  height: 52px;
  background: var(--bg-input);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  padding: 0 8px 0 14px;
  margin-bottom: 12px;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.input-row:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.25);
}

.input-leading-icon {
  color: var(--text-muted);
  font-size: 20px;
}

.url-input-field {
  flex: 1;
  min-width: 0;
  background: transparent;
  border: none;
  outline: none;
  color: #ffffff;
  font-size: 15px;
  font-family: var(--font-sans);
}
.url-input-field::placeholder {
  color: var(--text-dim);
}

.input-actions {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

.icon-btn {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  background: transparent;
  border: none;
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: color var(--transition), background var(--transition);
}
.icon-btn:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}
.icon-btn:active {
  transform: scale(0.92);
}

.btn-paste {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  height: 36px;
  padding: 0 12px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: #ffffff;
  font-size: 12.5px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}
.btn-paste:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(255, 255, 255, 0.22);
}
.btn-paste:active {
  transform: scale(0.95);
}

/* Primary Action Button */
.btn-submit {
  width: 100%;
  height: 50px;
  border-radius: var(--radius-md);
  background: #ffffff;
  color: #000000;
  border: none;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  box-shadow: 0 4px 18px rgba(255, 255, 255, 0.12), 0 2px 6px rgba(0, 0, 0, 0.4);
  transition: transform var(--transition), opacity var(--transition);
}
.btn-submit:hover {
  opacity: 0.94;
  transform: translateY(-1px);
}
.btn-submit:active {
  transform: scale(0.98);
  opacity: 0.9;
}

/* Platform Tabs Bar (4 Balanced Columns) */
.platform-tabs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
  margin-top: 12px;
  background: rgba(0, 0, 0, 0.35);
  padding: 4px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.05);
}
.platform-tab {
  height: 34px;
  border-radius: 8px;
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}
.platform-tab:hover {
  color: var(--text-primary);
}
.platform-tab:active {
  transform: scale(0.96);
}
.platform-tab.active {
  background: rgba(255, 255, 255, 0.1);
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

@media (max-width: 640px) {
  .command-card {
    padding: 14px;
    border-radius: var(--radius-lg);
  }
  .input-row {
    height: 48px;
    padding: 0 6px 0 12px;
  }
  .url-input-field {
    font-size: 16px; /* Prevents auto-zoom on iOS */
  }
  .btn-submit {
    height: 48px;
    font-size: 14.5px;
  }
  .btn-paste {
    height: 34px;
    padding: 0 10px;
    font-size: 12px;
  }
  .tag-chip {
    display: none; /* Keep clean on small mobile */
  }
}

/* ── Loader Card ── */
.loader-card {
  max-width: 620px;
  margin: 0 auto 28px;
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  padding: 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  box-shadow: var(--shadow-card);
}
.loader-info {
  display: flex;
  align-items: center;
  gap: 12px;
}
.loader-spinner {
  width: 20px;
  height: 20px;
  border: 2.5px solid rgba(255, 255, 255, 0.1);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  flex-shrink: 0;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}
.loader-title {
  font-size: 14px;
  font-weight: 600;
  color: #fff;
}
.loader-sub {
  font-size: 12px;
  color: var(--text-muted);
}
.loader-progress {
  width: 100%;
  height: 4px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-full);
  overflow: hidden;
}
.loader-bar {
  width: 20%;
  height: 100%;
  background: var(--accent);
  border-radius: var(--radius-full);
  transition: width 0.25s ease;
}

/* ── Result Deck Card ── */
.result-card {
  max-width: 620px;
  margin: 0 auto 36px;
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
  padding: 20px;
  box-shadow: var(--shadow-card);
}
.result-grid {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 18px;
}

.result-media {
  width: 100%;
  aspect-ratio: 16/9;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: #000;
  border: 1px solid var(--border-subtle);
  position: relative;
}
.result-media img, .result-media video, .result-media audio {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.result-dur {
  position: absolute;
  bottom: 6px;
  right: 6px;
  background: rgba(0, 0, 0, 0.82);
  padding: 2px 7px;
  border-radius: 5px;
  font-size: 10.5px;
  font-family: var(--font-mono);
  font-weight: 600;
  color: #fff;
  backdrop-filter: blur(4px);
}

.result-content {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 12px;
}
.result-title {
  font-size: 15px;
  font-weight: 700;
  line-height: 1.35;
  color: #fff;
  margin-bottom: 3px;
  word-break: break-word;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.result-author {
  font-size: 12.5px;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.meta-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
  margin-bottom: 12px;
}
.meta-item {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 6px 8px;
  text-align: center;
  display: flex;
  flex-direction: column;
}
.meta-k {
  font-size: 9px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 2px;
}
.meta-v {
  font-size: 12px;
  font-weight: 600;
  color: #fff;
  font-family: var(--font-mono);
}

.select-quality-box {
  margin-bottom: 12px;
}
.select-quality-box label {
  display: block;
  font-size: 10.5px;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 5px;
  letter-spacing: 0.5px;
}
.quality-dropdown {
  width: 100%;
  height: 40px;
  padding: 0 12px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  color: #fff;
  font-size: 13px;
  font-weight: 500;
  outline: none;
  cursor: pointer;
}
.quality-dropdown:focus {
  border-color: var(--accent);
}

.result-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}
.btn-dl-main {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 44px;
  padding: 0 16px;
  border-radius: var(--radius-md);
  background: #ffffff;
  color: #000000;
  text-decoration: none;
  font-size: 13.5px;
  font-weight: 700;
  transition: opacity var(--transition), transform var(--transition);
  box-shadow: 0 2px 10px rgba(255, 255, 255, 0.1);
}
.btn-dl-main:hover {
  opacity: 0.92;
  transform: translateY(-1px);
}
.btn-dl-main:active {
  transform: scale(0.98);
}

.btn-dl-sec {
  width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-default);
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: all var(--transition);
  flex-shrink: 0;
}
.btn-dl-sec:hover {
  color: #fff;
  border-color: var(--border-hover);
  background: rgba(255, 255, 255, 0.1);
}
.btn-dl-sec:active {
  transform: scale(0.94);
}

@media (max-width: 640px) {
  .result-card {
    padding: 14px;
    border-radius: var(--radius-lg);
    margin-bottom: 24px;
  }
  .result-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .btn-dl-main {
    height: 46px;
    font-size: 14px;
  }
  .btn-dl-sec {
    width: 46px;
    height: 46px;
  }
}

/* ── How It Works & Features Section ── */
.features-section {
  padding: 40px 0;
  border-top: 1px solid var(--border-subtle);
}
.features-header {
  text-align: center;
  margin-bottom: 24px;
}
.features-header h2 {
  font-size: clamp(20px, 4vw, 24px);
  font-weight: 700;
  letter-spacing: -0.5px;
  margin-bottom: 5px;
  color: #fff;
}
.features-header p {
  color: var(--text-secondary);
  font-size: 13.5px;
  padding: 0 8px;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 12px;
}
.step-card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  padding: 18px;
  position: relative;
  transition: border-color var(--transition);
}
.step-card:hover {
  border-color: var(--border-hover);
}
.step-num {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  color: var(--accent);
  background: var(--accent-soft);
  border: 1px solid rgba(59, 130, 246, 0.25);
  padding: 2px 7px;
  border-radius: 5px;
  margin-bottom: 8px;
  letter-spacing: 0.5px;
}
.step-card h3 {
  font-size: 14.5px;
  font-weight: 600;
  margin-bottom: 5px;
  color: #fff;
}
.step-card p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 12px;
}
.feature-box {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  padding: 18px;
  transition: border-color var(--transition);
}
.feature-box:hover {
  border-color: var(--border-hover);
}
.feature-box h3 {
  font-size: 14.5px;
  font-weight: 600;
  margin-bottom: 5px;
  color: #fff;
}
.feature-box p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
}

.faq-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 12px;
}
.faq-card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  padding: 18px;
  transition: border-color var(--transition);
}
.faq-card:hover {
  border-color: var(--border-hover);
}
.faq-card h3 {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 5px;
  color: #fff;
}
.faq-card p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
}

@media (max-width: 640px) {
  .features-section {
    padding: 30px 0;
  }
  .features-header {
    margin-bottom: 18px;
  }
  .features-header h2 {
    font-size: 19px;
  }
  .steps-grid, .features-grid, .faq-grid {
    grid-template-columns: 1fr;
    gap: 10px;
  }
  .step-card, .feature-box, .faq-card {
    padding: 15px 14px;
  }
}

/* ── Modals & Toasts ── */
#toastHub {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
  max-width: 380px;
  width: calc(100vw - 32px);
}
.toast {
  pointer-events: auto;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  background: #141418;
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-dropdown);
  color: #fff;
  font-size: 12.5px;
}
.toast.success { border-left: 3px solid var(--emerald); }
.toast.error { border-left: 3px solid var(--rose); }
.toast.info { border-left: 3px solid var(--accent); }

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 16px;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}
.modal-overlay.open {
  opacity: 1;
  pointer-events: auto;
}
.modal-box {
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  max-width: 500px;
  width: 100%;
  max-height: 80vh;
  display: flex;
  flex-direction: column;
  padding: 20px;
  box-shadow: var(--shadow-dropdown);
}

/* ── Footer ── */
.site-footer {
  margin-top: auto;
  border-top: 1px solid var(--border-subtle);
  padding: 22px 0;
  font-size: 12px;
  color: var(--text-muted);
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.footer-links {
  display: flex;
  gap: 16px;
}
.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--transition);
}
.footer-links a:hover {
  color: #fff;
}

@media (max-width: 640px) {
  .site-footer {
    padding: 18px 0 calc(18px + env(safe-area-inset-bottom, 0px));
  }
  .footer-inner {
    flex-direction: column;
    text-align: center;
    gap: 8px;
  }
}