/* ========================
   BASE & RESET
======================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg: #080b14;
  --surface: rgba(255,255,255,0.04);
  --surface-hover: rgba(255,255,255,0.08);
  --border: rgba(255,255,255,0.08);
  --border-hover: rgba(99,179,237,0.4);
  --accent: #4facfe;
  --accent2: #00f2fe;
  --accent-glow: rgba(79,172,254,0.25);
  --text: #f0f4ff;
  --text-muted: #8892a4;
  --green: #34d399;
  --red: #f87171;
  --radius: 16px;
  --radius-sm: 10px;
  --font: 'Outfit', sans-serif;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
}

.hidden { display: none !important; }

/* ========================
   BACKGROUND BLOBS
======================== */
.bg-blob {
  position: fixed;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.15;
  pointer-events: none;
  z-index: 0;
  animation: blobFloat 12s ease-in-out infinite;
}
.blob-1 {
  width: 600px; height: 600px;
  background: radial-gradient(circle, #4facfe, transparent);
  top: -200px; left: -150px;
  animation-delay: 0s;
}
.blob-2 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, #a78bfa, transparent);
  top: 40%; right: -180px;
  animation-delay: 4s;
}
.blob-3 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, #34d399, transparent);
  bottom: 0; left: 30%;
  animation-delay: 8s;
}
@keyframes blobFloat {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-30px) scale(1.05); }
}

/* ========================
   NAVBAR
======================== */
.navbar {
  position: relative;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 48px;
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(12px);
  background: rgba(8,11,20,0.6);
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.3rem;
  font-weight: 600;
  letter-spacing: -0.3px;
  color: var(--text);
  text-decoration: none;
}
.logo.small { font-size: 1rem; }
.logo-icon {
  width: 36px; height: 36px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  box-shadow: 0 0 20px var(--accent-glow);
}

.nav-download-btn {
  padding: 10px 22px;
  border: 1px solid var(--border-hover);
  border-radius: 50px;
  color: var(--accent);
  font-family: var(--font);
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: none;
  transition: all 0.2s ease;
  background: transparent;
}
.nav-download-btn:hover {
  background: var(--accent-glow);
  border-color: var(--accent);
}

/* ========================
   HERO
======================== */
.hero {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 80px 24px 60px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  padding: 6px 16px;
  border: 1px solid var(--border-hover);
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--accent);
  background: rgba(79,172,254,0.08);
  letter-spacing: 0.5px;
}

.hero-title {
  font-size: clamp(2.2rem, 6vw, 4rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -1px;
  color: var(--text);
}

.gradient-text {
  background: linear-gradient(90deg, var(--accent), var(--accent2), #a78bfa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 520px;
  line-height: 1.65;
}

/* ========================
   CONNECT CARD
======================== */
.connect-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 40px;
  width: 100%;
  max-width: 460px;
  backdrop-filter: blur(20px);
  box-shadow: 0 24px 64px rgba(0,0,0,0.4), 0 0 0 1px rgba(255,255,255,0.04);
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin-top: 12px;
}

.connect-card-header {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--text-muted);
  font-weight: 500;
}

.status-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--text-muted);
  transition: background 0.3s ease;
  flex-shrink: 0;
}
.status-dot.connecting { background: var(--accent); animation: pulse 1.2s infinite; }
.status-dot.connected { background: var(--green); }
.status-dot.error { background: var(--red); }

@keyframes pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(79,172,254,0.4); }
  50% { opacity: 0.7; box-shadow: 0 0 0 6px rgba(79,172,254,0); }
}

/* PIN Boxes */
.pin-input-group { display: flex; flex-direction: column; gap: 8px; }

.pin-boxes {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.pin-box {
  width: 52px; height: 60px;
  background: rgba(255,255,255,0.05);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: var(--font);
  font-size: 1.6rem;
  font-weight: 600;
  text-align: center;
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
  caret-color: var(--accent);
}
.pin-box:focus {
  border-color: var(--accent);
  background: rgba(79,172,254,0.08);
  box-shadow: 0 0 0 3px var(--accent-glow);
}
.pin-box.filled {
  border-color: rgba(79,172,254,0.5);
  background: rgba(79,172,254,0.06);
}
.pin-box.error-shake {
  border-color: var(--red);
  animation: shake 0.4s ease;
}
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-6px); }
  75% { transform: translateX(6px); }
}

.pin-separator {
  font-size: 1.5rem;
  color: var(--text-muted);
  margin: 0 2px;
  user-select: none;
}

.pin-error {
  font-size: 0.8rem;
  color: var(--red);
  text-align: center;
  min-height: 18px;
}

/* Connect Button */
.connect-btn {
  width: 100%;
  padding: 16px;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent2) 100%);
  border: none;
  border-radius: var(--radius-sm);
  color: #080b14;
  font-family: var(--font);
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  letter-spacing: 0.3px;
  box-shadow: 0 4px 20px rgba(79,172,254,0.3);
  position: relative;
  overflow: hidden;
}
.connect-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0);
  transition: background 0.2s ease;
}
.connect-btn:hover:not(:disabled)::before { background: rgba(255,255,255,0.1); }
.connect-btn:active:not(:disabled) { transform: scale(0.98); }
.connect-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  box-shadow: none;
}

.btn-spinner {
  width: 18px; height: 18px;
  border: 2px solid rgba(8,11,20,0.3);
  border-top-color: #080b14;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ========================
   STEPS SECTION
======================== */
.steps-section {
  position: relative;
  z-index: 2;
  padding: 60px 24px;
  max-width: 1100px;
  margin: 0 auto;
}

.section-title {
  font-size: 1.8rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 40px;
  letter-spacing: -0.5px;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.step-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  backdrop-filter: blur(12px);
  transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
  position: relative;
  overflow: hidden;
}
.step-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  opacity: 0;
  transition: opacity 0.3s ease;
}
.step-card:hover { border-color: var(--border-hover); transform: translateY(-4px); box-shadow: 0 12px 40px rgba(0,0,0,0.3); }
.step-card:hover::before { opacity: 1; }

.step-num {
  font-size: 2.5rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 16px;
}

.step-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--text);
}
.step-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* ========================
   DOWNLOAD SECTION
======================== */
.download-section {
  position: relative;
  z-index: 2;
  padding: 40px 24px 80px;
  max-width: 900px;
  margin: 0 auto;
}

.download-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 48px 40px;
  backdrop-filter: blur(20px);
  text-align: center;
}

.download-subtitle {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-top: -28px;
  margin-bottom: 36px;
}

.download-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.download-btn-os {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 20px 24px;
  background: var(--surface-hover);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  text-decoration: none;
  color: var(--text);
  transition: all 0.2s ease;
  position: relative;
  overflow: hidden;
}
.download-btn-os:hover {
  border-color: var(--border-hover);
  background: rgba(79,172,254,0.06);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.2);
}

.os-icon { font-size: 1.8rem; flex-shrink: 0; }

.os-info {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
}
.os-name { font-size: 0.95rem; font-weight: 600; }
.os-ext { font-size: 0.75rem; color: var(--text-muted); }

.dl-arrow {
  margin-left: auto;
  font-size: 1.2rem;
  color: var(--accent);
  opacity: 0;
  transition: opacity 0.2s ease, transform 0.2s ease;
}
.download-btn-os:hover .dl-arrow { opacity: 1; transform: translateY(2px); }

.coming-soon-note {
  font-size: 0.82rem;
  color: var(--text-muted);
  background: rgba(248,197,113,0.08);
  border: 1px solid rgba(248,197,113,0.2);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  display: inline-block;
}

/* ========================
   FOOTER
======================== */
.footer {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 28px;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.82rem;
}

/* ========================
   SESSION PAGE
======================== */
#session-page {
  display: flex;
  flex-direction: column;
  height: 100vh;
  background: #000;
}

.session-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  background: rgba(8,11,20,0.95);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  z-index: 10;
}

.session-info {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.disconnect-btn {
  padding: 8px 20px;
  background: rgba(248,113,113,0.12);
  border: 1px solid rgba(248,113,113,0.3);
  border-radius: 50px;
  color: var(--red);
  font-family: var(--font);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}
.disconnect-btn:hover {
  background: rgba(248,113,113,0.2);
  border-color: var(--red);
}

/* Viewport */
.session-viewport {
  flex: 1;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: #0a0a0a;
  cursor: none;
}

#remote-video {
  max-width: 100%;
  max-height: 100%;
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.session-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  background: rgba(8,11,20,0.9);
  color: var(--text-muted);
  font-size: 0.95rem;
}

.connecting-spinner {
  width: 40px; height: 40px;
  border: 3px solid rgba(255,255,255,0.1);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
}

/* ========================
   RESPONSIVE
======================== */
@media (max-width: 600px) {
  .navbar { padding: 16px 20px; }
  .hero { padding: 48px 16px 40px; }
  .connect-card { padding: 28px 20px; }
  .pin-box { width: 42px; height: 52px; font-size: 1.3rem; }
  .download-card { padding: 32px 20px; }
  .steps-section, .download-section { padding: 40px 16px; }
}