/* ==========================================================================
   INSAVE HUB — CONTROL CENTER COMPONENTS & LAYOUT SYSTEM
   Sky Blue & White Gradient Glassmorphism Edition
   ========================================================================== */

.container-shell {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.main-viewport {
  flex: 1;
  padding-top: 88px;
  padding-bottom: var(--space-16);
}

/* Top Glass Control Navigation */
.glass-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: 72px;
  background: linear-gradient(
    90deg,
    rgba(255, 255, 255, 0.86) 0%,
    rgba(240, 249, 255, 0.84) 50%,
    rgba(224, 242, 254, 0.86) 100%
  );
  backdrop-filter: var(--blur-md);
  -webkit-backdrop-filter: var(--blur-md);
  border-bottom: 1px solid rgba(14, 165, 233, 0.22);
  box-shadow: 0 4px 24px rgba(14, 165, 233, 0.08);
}

.nav-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
}

.brand-identity {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
}

.brand-mark {
  width: 34px;
  height: 34px;
  display: block;
}

.brand-wordmark {
  font-family: var(--font-display);
  font-size: 1.08rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--text-primary);
}

.brand-subtag {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--light-cyan);
  display: block;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  list-style: none;
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-xs);
  border: 1px solid transparent;
  transition: all var(--duration-fast) var(--ease-standard);
}

.nav-link:hover,
.nav-link.is-current {
  color: var(--light-cyan);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.92) 0%, rgba(224, 242, 254, 0.75) 100%);
  border-color: rgba(14, 165, 233, 0.32);
  box-shadow: 0 4px 12px rgba(14, 165, 233, 0.1);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

/* Telemetry Status Pill */
.telemetry-pill {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.34rem 0.78rem;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 0%, rgba(224, 242, 254, 0.78) 100%);
  border: 1px solid rgba(14, 165, 233, 0.3);
  border-top-color: #FFFFFF;
  border-radius: var(--radius-xs);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--text-secondary);
  box-shadow: 0 2px 10px rgba(14, 165, 233, 0.08);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--light-blue);
  box-shadow: 0 0 8px rgba(14, 165, 233, 0.75);
}

.status-dot-emerald {
  background: var(--light-emerald);
  box-shadow: 0 0 8px rgba(5, 150, 105, 0.65);
}

.status-dot-amber {
  background: var(--light-amber);
  box-shadow: 0 0 8px rgba(217, 119, 6, 0.65);
}

.status-dot-rose {
  background: var(--light-rose);
  box-shadow: 0 0 8px rgba(225, 29, 72, 0.65);
}

/* Precision Sky-Blue & White Glass Buttons */
.btn-glass {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.68rem 1.35rem;
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  border-radius: var(--radius-sm);
  cursor: pointer;
  border: 1px solid rgba(14, 165, 233, 0.32);
  border-top-color: #FFFFFF;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.92) 0%, rgba(224, 242, 254, 0.78) 100%);
  color: var(--text-primary);
  backdrop-filter: var(--blur-sm);
  -webkit-backdrop-filter: var(--blur-sm);
  box-shadow: 0 6px 18px -4px rgba(14, 165, 233, 0.14), inset 0 1px 0 #FFFFFF;
  transition:
    transform var(--duration-fast) var(--ease-out-expo),
    border-color var(--duration-fast) ease,
    background var(--duration-fast) ease,
    box-shadow var(--duration-fast) ease,
    color var(--duration-fast) ease;
}

.btn-glass:hover:not(:disabled) {
  transform: translateY(-2px);
  border-color: var(--light-blue);
  background: linear-gradient(135deg, #FFFFFF 0%, #D8F0FE 100%);
  color: var(--light-cyan);
  box-shadow: 0 10px 26px -6px rgba(14, 165, 233, 0.28), inset 0 1px 0 #FFFFFF;
}

.btn-glass:active:not(:disabled) {
  transform: translateY(0);
}

.btn-glass:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.btn-primary {
  background: linear-gradient(135deg, #0284C7 0%, #0EA5E9 52%, #38BDF8 100%);
  border-color: #0284C7;
  border-top-color: rgba(255, 255, 255, 0.65);
  color: #FFFFFF;
  box-shadow:
    0 10px 28px -6px rgba(2, 132, 199, 0.42),
    inset 0 1px 1px rgba(255, 255, 255, 0.45);
}

.btn-primary:hover:not(:disabled) {
  background: linear-gradient(135deg, #0369A1 0%, #0284C7 50%, #0EA5E9 100%);
  border-color: #0369A1;
  color: #FFFFFF;
  box-shadow:
    0 14px 34px -6px rgba(2, 132, 199, 0.52),
    inset 0 1px 1px rgba(255, 255, 255, 0.6);
}

.btn-sm {
  padding: 0.42rem 0.88rem;
  font-size: 0.8rem;
}

.btn-block {
  width: 100%;
}

/* Glass Inputs & Form Controls */
.form-group {
  margin-bottom: var(--space-5);
}

.form-label {
  display: block;
  margin-bottom: var(--space-2);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: 0.02em;
}

.glass-input,
.glass-select,
.glass-textarea {
  width: 100%;
  padding: 0.78rem 1rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--text-primary);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.92) 0%, rgba(240, 249, 255, 0.85) 100%);
  border: 1px solid rgba(14, 165, 233, 0.3);
  border-top-color: #FFFFFF;
  border-radius: var(--radius-sm);
  box-shadow: inset 0 2px 4px rgba(14, 165, 233, 0.05);
  transition:
    border-color var(--duration-fast) ease,
    box-shadow var(--duration-fast) ease,
    background var(--duration-fast) ease;
}

.glass-input::placeholder {
  color: var(--text-dim);
}

.glass-input:focus,
.glass-select:focus,
.glass-textarea:focus {
  outline: none;
  border-color: var(--light-blue);
  background: #FFFFFF;
  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.2);
}

/* Hero Control Center Layout */
.hero-section {
  padding: var(--space-12) 0 var(--space-16);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.12fr 0.88fr;
  gap: var(--space-12);
  align-items: center;
}

.hero-headline {
  font-size: clamp(2.35rem, 4.4vw, 3.85rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.08;
  margin-top: var(--space-4);
  margin-bottom: var(--space-6);
  background: linear-gradient(135deg, #0B2545 0%, #0284C7 65%, #0EA5E9 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: var(--text-primary);
}

.hero-lead {
  font-size: 1.08rem;
  color: var(--text-secondary);
  max-width: 58ch;
  margin-bottom: var(--space-8);
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-bottom: var(--space-10);
}

.hero-metrics-bar {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
  padding-top: var(--space-6);
  border-top: 1px solid var(--border-hairline);
}

.metric-value {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--light-cyan);
}

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

/* Section Structural Headers */
.section-block {
  padding: var(--space-16) 0;
  border-top: 1px solid var(--border-hairline);
}

.section-header {
  max-width: 680px;
  margin-bottom: var(--space-10);
}

.section-title {
  font-size: clamp(1.65rem, 2.8vw, 2.35rem);
  margin-top: var(--space-2);
  margin-bottom: var(--space-3);
}

.section-subtitle {
  color: var(--text-secondary);
  font-size: 0.98rem;
}

/* Grid Systems */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-5);
}

/* Tool Glass Modules */
.tool-card {
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: var(--space-5);
}

.tool-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-3);
}

.tool-badge {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  padding: 0.22rem 0.6rem;
  background: linear-gradient(135deg, #E0F2FE 0%, #BAE6FD 100%);
  border: 1px solid rgba(2, 132, 199, 0.35);
  border-radius: var(--radius-xs);
  color: var(--light-cyan);
}

.tool-format-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
}

/* Downloader Mode Tabs (Video, Reel, Photo, Post, Profile) */
.downloader-mode-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-5);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--border-hairline);
}

.downloader-tab-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.52rem 1rem;
  font-family: var(--font-display);
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.85) 0%, rgba(224, 242, 254, 0.65) 100%);
  border: 1px solid rgba(14, 165, 233, 0.25);
  border-top-color: #FFFFFF;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--duration-fast) ease;
}

.downloader-tab-btn:hover {
  border-color: var(--light-blue);
  color: var(--light-cyan);
  background: #FFFFFF;
}

.downloader-tab-btn.is-active {
  background: linear-gradient(135deg, #0284C7 0%, #0EA5E9 100%);
  border-color: #0284C7;
  color: #FFFFFF;
  box-shadow: 0 6px 18px rgba(2, 132, 199, 0.28);
}

/* Central URL Analyzer Bar */
.analyzer-bar {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: var(--space-3);
  padding: var(--space-3);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.96) 0%, rgba(224, 242, 254, 0.88) 100%);
  border: 1px solid rgba(14, 165, 233, 0.42);
  border-top-color: #FFFFFF;
  border-radius: var(--radius-md);
  box-shadow: 0 12px 32px -8px rgba(14, 165, 233, 0.18);
}

.analyzer-bar .glass-input {
  border: none;
  background: transparent;
  box-shadow: none;
  font-family: var(--font-mono);
  font-size: 0.94rem;
}

.analyzer-bar .glass-input:focus {
  box-shadow: none;
}

/* Glass Result Panel & Video Stream Preview Screen */
.result-panel {
  margin-top: var(--space-6);
  padding: var(--space-6);
  border-color: rgba(14, 165, 233, 0.48);
}

.video-preview-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: var(--space-6);
  align-items: stretch;
  margin-top: var(--space-5);
}

.video-preview-screen {
  position: relative;
  min-height: 210px;
  border-radius: var(--radius-sm);
  background: linear-gradient(145deg, #0B2545 0%, #0284C7 58%, #38BDF8 100%);
  border: 1px solid rgba(14, 165, 233, 0.45);
  box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.35), 0 12px 28px rgba(2, 132, 199, 0.22);
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  color: #FFFFFF;
  overflow: hidden;
}

.video-preview-play-badge {
  width: 54px;
  height: 54px;
  border-radius: 50%;
  margin: auto;
  background: rgba(255, 255, 255, 0.22);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1.5px solid rgba(255, 255, 255, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(11, 37, 69, 0.35);
}

.result-spec-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
  margin: var(--space-5) 0;
}

.spec-cell {
  padding: var(--space-3) var(--space-4);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.88) 0%, rgba(240, 249, 255, 0.72) 100%);
  border: 1px solid rgba(14, 165, 233, 0.2);
  border-top-color: #FFFFFF;
  border-radius: var(--radius-xs);
}

.spec-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  display: block;
  margin-bottom: var(--space-1);
}

.spec-val {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  color: var(--text-primary);
  font-weight: 600;
}

/* 30-Second Advertisement Countdown Ring & Progress */
.ad-countdown-stage {
  max-width: 680px;
  margin: 0 auto;
  padding: var(--space-8);
  text-align: center;
}

.countdown-dial {
  position: relative;
  width: 168px;
  height: 168px;
  margin: var(--space-6) auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: linear-gradient(145deg, #FFFFFF 0%, #E0F2FE 100%);
  border: 2px solid rgba(14, 165, 233, 0.45);
  box-shadow:
    0 14px 36px rgba(14, 165, 233, 0.22),
    inset 0 2px 4px #FFFFFF;
}

.countdown-number {
  font-family: var(--font-mono);
  font-size: 2.6rem;
  font-weight: 700;
  color: var(--light-cyan);
  line-height: 1;
}

.countdown-unit {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-top: var(--space-1);
}

.progress-track {
  width: 100%;
  height: 8px;
  background: rgba(224, 242, 254, 0.9);
  border: 1px solid rgba(14, 165, 233, 0.28);
  border-radius: 999px;
  overflow: hidden;
  margin: var(--space-5) 0;
}

.progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #0284C7 0%, #0EA5E9 55%, #38BDF8 100%);
  transition: width 350ms linear;
}

/* Data Tables */
.glass-table-wrap {
  width: 100%;
  overflow-x: auto;
}

.glass-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.88rem;
}

.glass-table th {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid rgba(14, 165, 233, 0.28);
}

.glass-table td {
  padding: var(--space-4);
  border-bottom: 1px solid var(--border-hairline);
  color: var(--text-secondary);
  vertical-align: middle;
}

.glass-table tr:hover td {
  background: rgba(255, 255, 255, 0.65);
  color: var(--text-primary);
}

/* Donation Tier Selector */
.donation-tier-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-3);
  margin-bottom: var(--space-5);
}

.tier-btn {
  padding: var(--space-4);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 0%, rgba(224, 242, 254, 0.72) 100%);
  border: 1px solid rgba(14, 165, 233, 0.3);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--duration-fast) ease;
}

.tier-btn:hover,
.tier-btn.is-selected {
  border-color: var(--light-cyan);
  background: linear-gradient(135deg, #0284C7 0%, #0EA5E9 100%);
  color: #FFFFFF;
  box-shadow: 0 8px 22px rgba(14, 165, 233, 0.3);
}

/* Flash Messages & Alerts */
.alerts-stack {
  margin-bottom: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.glass-alert {
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-sm);
  border: 1px solid rgba(14, 165, 233, 0.3);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.94) 0%, rgba(240, 249, 255, 0.88) 100%);
  font-size: 0.9rem;
  color: var(--text-primary);
  box-shadow: var(--shadow-panel);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.glass-alert-success { border-left: 4px solid var(--light-emerald); }
.glass-alert-error { border-left: 4px solid var(--light-rose); }
.glass-alert-warning { border-left: 4px solid var(--light-amber); }
.glass-alert-info { border-left: 4px solid var(--light-cyan); }

/* Footer */
.glass-footer {
  border-top: 1px solid rgba(14, 165, 233, 0.22);
  background: linear-gradient(180deg, rgba(240, 249, 255, 0.86) 0%, rgba(224, 242, 254, 0.94) 100%);
  backdrop-filter: var(--blur-md);
  -webkit-backdrop-filter: var(--blur-md);
  padding: var(--space-12) 0 var(--space-8);
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: var(--space-8);
  margin-bottom: var(--space-8);
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.footer-links a {
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.footer-links a:hover {
  color: var(--light-cyan);
}

/* Navbar Small Donation Icon & Install App Controls */
.nav-icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-xs);
  border: 1px solid rgba(2, 132, 199, 0.32);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.94) 0%, rgba(224, 242, 254, 0.82) 100%);
  color: var(--light-cyan);
  cursor: pointer;
  transition:
    transform var(--duration-fast) var(--ease-out-expo),
    border-color var(--duration-fast) var(--ease-out-expo),
    box-shadow var(--duration-fast) var(--ease-out-expo),
    background var(--duration-fast) var(--ease-out-expo);
  box-shadow: 0 3px 10px rgba(2, 132, 199, 0.1);
}

.nav-icon-btn:hover,
.nav-icon-btn.is-active {
  transform: translateY(-1px);
  border-color: var(--light-cyan);
  background: linear-gradient(135deg, #0284C7 0%, #38BDF8 100%);
  color: #FFFFFF;
  box-shadow: 0 6px 18px rgba(2, 132, 199, 0.28);
}

.nav-install-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  border-color: rgba(2, 132, 199, 0.38);
}

/* Progressive Web App (PWA) Glass Installation Modal */
.app-install-modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  background: rgba(12, 45, 72, 0.34);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.app-install-modal-backdrop[hidden] {
  display: none !important;
}

.app-install-modal {
  width: 100%;
  max-width: 640px;
  padding: var(--space-6);
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.96) 0%, rgba(240, 249, 255, 0.94) 100%);
  border: 1px solid rgba(2, 132, 199, 0.4);
  box-shadow: 0 24px 64px rgba(2, 132, 199, 0.22);
}