/* ──────────────────────────────────────────
   DeepShield AI — style.css
   Premium dark glassmorphism design
   ────────────────────────────────────────── */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:          #08080f;
  --surface:     rgba(255,255,255,0.04);
  --surface-2:   rgba(255,255,255,0.07);
  --border:      rgba(255,255,255,0.08);
  --border-glow: rgba(139,92,246,0.35);
  --text:        #f0f0ff;
  --text-sub:    rgba(240,240,255,0.55);
  --purple:      #8B5CF6;
  --cyan:        #06B6D4;
  --green:       #22c55e;
  --red:         #ef4444;
  --orange:      #f97316;
  --radius:      18px;
  --radius-sm:   10px;
  --transition:  0.3s cubic-bezier(0.4,0,0.2,1);
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', sans-serif;
  font-size: 15px;
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

/* ── Background Orbs ── */
.bg-orbs { position: fixed; inset: 0; pointer-events: none; z-index: 0; overflow: hidden; }
.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.18;
  animation: drift 12s ease-in-out infinite alternate;
}
.orb-1 { width: 500px; height: 500px; background: var(--purple); top: -150px; left: -100px; animation-delay: 0s; }
.orb-2 { width: 400px; height: 400px; background: var(--cyan); bottom: -100px; right: -80px; animation-delay: -5s; }
.orb-3 { width: 300px; height: 300px; background: #ec4899; top: 40%; left: 60%; animation-delay: -9s; }

@keyframes drift {
  from { transform: translate(0, 0) scale(1); }
  to   { transform: translate(30px, 20px) scale(1.08); }
}

/* ── Navbar ── */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 32px;
  background: rgba(8,8,15,0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}
.nav-brand { display: flex; align-items: center; gap: 10px; }
.brand-icon { font-size: 24px; }
.brand-name {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
}
.brand-accent { color: var(--purple); }
.nav-badge {
  font-size: 11px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 99px;
  background: rgba(139,92,246,0.15);
  border: 1px solid rgba(139,92,246,0.3);
  color: var(--purple);
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

/* ── Server Status Badge ── */
.server-status {
  display: flex; align-items: center; gap: 8px;
  font-size: 12px; font-weight: 600;
  padding: 4px 12px; border-radius: 99px;
  background: var(--surface-2); border: 1px solid var(--border);
  transition: all 0.3s;
}
.status-dot { width: 8px; height: 8px; border-radius: 50%; }
.status-checking { color: #facc15; border-color: rgba(250,204,21,0.3); background: rgba(250,204,21,0.1); }
.status-checking .status-dot { background: #facc15; animation: pulse-dot 1s infinite alternate; }
.status-connected { color: #4ade80; border-color: rgba(74,222,128,0.3); background: rgba(74,222,128,0.1); }
.status-connected .status-dot { background: #4ade80; box-shadow: 0 0 8px #4ade80; }
.status-error { color: #f87171; border-color: rgba(248,113,113,0.3); background: rgba(248,113,113,0.1); }
.status-error .status-dot { background: #f87171; box-shadow: 0 0 8px #f87171; }


/* ── Hero ── */
.hero {
  text-align: center;
  padding: 60px 24px 36px;
  position: relative;
  z-index: 1;
}
.hero-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  padding: 6px 16px;
  border-radius: 99px;
  background: rgba(6,182,212,0.1);
  border: 1px solid rgba(6,182,212,0.25);
  color: var(--cyan);
  margin-bottom: 20px;
}
.hero-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(36px, 6vw, 64px);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 18px;
  letter-spacing: -1px;
}
.gradient-text {
  background: linear-gradient(135deg, var(--purple), var(--cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-subtitle {
  color: var(--text-sub);
  font-size: 17px;
  max-width: 540px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ── Main Card ── */
.main-card {
  position: relative;
  z-index: 1;
  max-width: 820px;
  margin: 0 auto 60px;
  padding: 40px 32px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 28px;
  backdrop-filter: blur(24px);
  box-shadow: 0 32px 80px rgba(0,0,0,0.4), 0 0 0 1px rgba(255,255,255,0.03) inset;
}

/* ── Drop Zone ── */
.drop-zone {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 52px 32px;
  border: 2px dashed rgba(139,92,246,0.3);
  border-radius: var(--radius);
  background: rgba(139,92,246,0.04);
  cursor: pointer;
  transition: all var(--transition);
  outline: none;
}
.drop-zone:hover, .drop-zone:focus, .drop-zone.dragging {
  border-color: var(--purple);
  background: rgba(139,92,246,0.1);
  box-shadow: 0 0 0 4px rgba(139,92,246,0.12);
  transform: translateY(-2px);
}
.drop-icon svg { width: 64px; height: 64px; }
.drop-title { font-size: 19px; font-weight: 600; color: var(--text); }
.drop-sub { color: var(--text-sub); }
.link-text { color: var(--purple); text-decoration: underline; cursor: pointer; }
.drop-limits {
  font-size: 12px;
  color: var(--text-sub);
  opacity: 0.7;
  margin-top: 4px;
  letter-spacing: 0.3px;
}

/* ── File Preview ── */
.file-preview { display: flex; flex-direction: column; gap: 18px; margin-top: 20px; }
.file-info {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}
.file-icon { font-size: 28px; }
.file-meta { flex: 1; display: flex; flex-direction: column; }
.file-name { font-weight: 600; font-size: 14px; color: var(--text); word-break: break-all; }
.file-size { font-size: 12px; color: var(--text-sub); }
.remove-btn {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-sub);
  width: 32px; height: 32px;
  border-radius: 50%;
  font-size: 14px;
  cursor: pointer;
  transition: all var(--transition);
  display: flex; align-items: center; justify-content: center;
}
.remove-btn:hover { background: rgba(239,68,68,0.1); border-color: var(--red); color: var(--red); }

.video-container {
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: #000;
  border: 1px solid var(--border);
}
.video-preview { width: 100%; max-height: 300px; display: block; }

.analyze-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 16px;
  font-size: 16px;
  font-weight: 700;
  border: none;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--purple), var(--cyan));
  color: #fff;
  cursor: pointer;
  transition: all var(--transition);
  letter-spacing: 0.3px;
  box-shadow: 0 8px 24px rgba(139,92,246,0.35);
}
.analyze-btn:hover { transform: translateY(-2px); box-shadow: 0 12px 32px rgba(139,92,246,0.45); }
.analyze-btn:active { transform: translateY(0); }
.analyze-btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }
.btn-icon { font-size: 18px; }

/* ── Loading ── */
.loading-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  padding: 40px 0;
}
.loading-animation {
  position: relative;
  width: 100px;
  height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.spinner-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 3px solid transparent;
  border-top-color: var(--purple);
  animation: spin 1s linear infinite;
}
.ring-2 {
  inset: 8px;
  border-top-color: var(--cyan);
  animation-duration: 1.4s;
  animation-direction: reverse;
}
.ring-3 {
  inset: 16px;
  border-top-color: rgba(139,92,246,0.4);
  animation-duration: 2s;
}
.spinner-center { font-size: 28px; z-index: 1; }
@keyframes spin { to { transform: rotate(360deg); } }

.loading-title { font-size: 22px; font-weight: 700; text-align: center; }
.loading-steps { display: flex; flex-direction: column; gap: 10px; width: 100%; max-width: 280px; }
.step {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  color: var(--text-sub);
  transition: all var(--transition);
}
.step.active { color: var(--text); }
.step-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--border);
  transition: all var(--transition);
  flex-shrink: 0;
}
.step.active .step-dot {
  background: var(--purple);
  box-shadow: 0 0 8px var(--purple);
  animation: pulse-dot 1s ease-in-out infinite;
}
.step.done .step-dot { background: var(--green); animation: none; }
.step.done { color: var(--green); }
@keyframes pulse-dot { 0%,100% { transform: scale(1); } 50% { transform: scale(1.4); } }
.loading-note { font-size: 12px; color: var(--text-sub); text-align: center; opacity: 0.7; }

/* ── Results ── */
.results-section { display: flex; flex-direction: column; gap: 24px; }

.verdict-card {
  display: flex;
  gap: 32px;
  padding: 28px;
  border-radius: var(--radius);
  border: 1px solid var(--border-glow);
  background: var(--surface-2);
  align-items: center;
  flex-wrap: wrap;
}
.verdict-card.is-fake { border-color: rgba(239,68,68,0.4); background: rgba(239,68,68,0.04); }
.verdict-card.is-real { border-color: rgba(34,197,94,0.4); background: rgba(34,197,94,0.04); }

.verdict-left {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  min-width: 160px;
}
.verdict-circle-wrap { position: relative; width: 140px; height: 140px; }
.verdict-ring { width: 100%; height: 100%; transform: rotate(-90deg); }
.ring-bg { fill: none; stroke: rgba(255,255,255,0.06); stroke-width: 8; }
.ring-progress {
  fill: none;
  stroke: var(--purple);
  stroke-width: 8;
  stroke-linecap: round;
  stroke-dasharray: 314;
  stroke-dashoffset: 314;
  transition: stroke-dashoffset 1.2s cubic-bezier(0.4,0,0.2,1), stroke 0.4s;
}
.verdict-inner {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.verdict-pct {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 30px;
  font-weight: 700;
  line-height: 1;
}
.verdict-label {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-top: 2px;
}
.verdict-desc { font-size: 12px; color: var(--text-sub); text-align: center; }

.verdict-right { flex: 1; min-width: 220px; }
.verdict-badge {
  display: inline-block;
  font-size: 20px;
  font-weight: 800;
  font-family: 'Space Grotesk', sans-serif;
  padding: 8px 20px;
  border-radius: var(--radius-sm);
  margin-bottom: 18px;
  letter-spacing: 1px;
}
.verdict-badge.fake {
  background: rgba(239,68,68,0.15);
  border: 1px solid rgba(239,68,68,0.4);
  color: #f87171;
}
.verdict-badge.real {
  background: rgba(34,197,94,0.15);
  border: 1px solid rgba(34,197,94,0.4);
  color: #4ade80;
}

.verdict-stats { display: flex; flex-direction: column; gap: 10px; }
.stat-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 14px;
  border-radius: 8px;
  background: var(--surface);
  border: 1px solid var(--border);
  font-size: 14px;
}
.stat-label { color: var(--text-sub); }
.stat-val { font-weight: 700; }
.fake-val { color: #f87171; }
.real-val { color: #4ade80; }

/* ── Frame Chart ── */
.chart-card {
  padding: 24px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.chart-title { font-size: 16px; font-weight: 700; margin-bottom: 4px; }
.chart-sub { font-size: 12px; color: var(--text-sub); margin-bottom: 18px; }
.frame-chart {
  display: flex;
  align-items: flex-end;
  gap: 4px;
  height: 120px;
  position: relative;
  padding: 0 4px;
}
.frame-chart::after {
  content: "50%";
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  font-size: 10px;
  color: var(--text-sub);
  opacity: 0.6;
}
.frame-chart::before {
  content: "";
  position: absolute;
  left: 4px; right: 24px;
  top: 50%;
  border-top: 1px dashed rgba(255,255,255,0.12);
}
.bar-wrap {
  flex: 1;
  display: flex;
  align-items: flex-end;
  height: 100%;
  position: relative;
}
.bar {
  width: 100%;
  border-radius: 4px 4px 0 0;
  min-height: 4px;
  transition: height 0.8s cubic-bezier(0.4,0,0.2,1);
  cursor: default;
  position: relative;
}
.bar::after {
  content: attr(data-tip);
  position: absolute;
  bottom: calc(100% + 4px);
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0,0,0,0.85);
  color: var(--text);
  font-size: 10px;
  padding: 2px 6px;
  border-radius: 4px;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
}
.bar:hover::after { opacity: 1; }
.bar.bar-fake { background: linear-gradient(to top, #ef4444, #f97316); }
.bar.bar-real { background: linear-gradient(to top, #22c55e, #06B6D4); }

.chart-legend {
  display: flex;
  gap: 18px;
  margin-top: 12px;
}
.legend-item { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--text-sub); }
.dot { width: 10px; height: 10px; border-radius: 3px; }
.dot-fake { background: #ef4444; }
.dot-real { background: #22c55e; }
.dot-thresh { background: transparent; border: 1px dashed rgba(255,255,255,0.3); }

/* ── Actions ── */
.result-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.action-btn {
  flex: 1;
  min-width: 160px;
  padding: 14px 20px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition);
  border: none;
  outline: none;
  letter-spacing: 0.2px;
}
.action-primary {
  background: linear-gradient(135deg, var(--purple), var(--cyan));
  color: #fff;
  box-shadow: 0 6px 20px rgba(139,92,246,0.3);
}
.action-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 28px rgba(139,92,246,0.4); }
.action-secondary {
  background: var(--surface-2);
  color: var(--text);
  border: 1px solid var(--border);
}
.action-secondary:hover { background: var(--surface); border-color: var(--purple); }

/* ── Error ── */
.error-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  padding: 40px 0;
  text-align: center;
}
.error-icon { font-size: 48px; }
.error-title { font-size: 22px; font-weight: 700; color: var(--red); }
.error-msg { color: var(--text-sub); max-width: 400px; font-size: 14px; }

/* ── Footer ── */
.footer {
  text-align: center;
  padding: 28px 24px 40px;
  color: var(--text-sub);
  font-size: 13px;
  position: relative;
  z-index: 1;
  line-height: 1.8;
}
.footer-note { font-size: 11px; opacity: 0.5; }

/* ── Utility ── */
.hidden { display: none !important; }

/* ── Responsive ── */
@media (max-width: 600px) {
  .main-card { padding: 24px 16px; border-radius: 20px; margin: 0 12px 40px; }
  .verdict-card { flex-direction: column; align-items: center; text-align: center; }
  .verdict-right { width: 100%; }
  .hero { padding: 40px 16px 24px; }
  .navbar { padding: 12px 16px; }
  .result-actions { flex-direction: column; }
}

/* ── Entrance Animation ── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
.results-section > * {
  animation: fadeUp 0.5s ease both;
}
.results-section > *:nth-child(2) { animation-delay: 0.1s; }
.results-section > *:nth-child(3) { animation-delay: 0.2s; }