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

:root {
  --bg: #000208;
  --text: #FFFFFF;
  --accent: #2859E9;
  --red: #E61D2B;
  --overlay-opacity: 0.6;
  --overlay-width: 40%;
  --font-size: 2.5rem;
  --panel-blur: 24px;
  --panel-border-radius: 0px;
  --panel-inset: 0px;
  --letter-spacing: 0em;
  --text-align: center;
  --content-position: center;
  --video-brightness: 100%;
  --countdown-scale: 2;
}

[data-theme="light"] {
  --bg: #FFFFFF;
  --text: #000208;
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: var(--bg);
  font-family: 'Inter', sans-serif;
  cursor: none;
}

#video-container {
  position: relative;
  width: 100%;
  height: 100%;
}

#video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(var(--video-brightness));
  transition: filter 0.4s ease;
}

/* Subtle vignette over the video */
#video-container::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, transparent 50%, rgba(0, 2, 8, 0.4) 100%);
  pointer-events: none;
  z-index: 1;
  transition: opacity 0.4s ease;
}

#video-container.no-vignette::after {
  opacity: 0;
}

/* ── Overlay panel ── */
#overlay {
  position: absolute;
  top: var(--panel-inset);
  bottom: var(--panel-inset);
  width: var(--overlay-width);
  z-index: 2;
  display: flex;
  align-items: var(--content-position);
  justify-content: center;
  padding: 4rem 3.5rem;
  border-radius: var(--panel-border-radius);
  background:
    linear-gradient(
      180deg,
      rgba(0, 2, 8, calc(var(--overlay-opacity) * 0.8)) 0%,
      rgba(0, 2, 8, var(--overlay-opacity)) 30%,
      rgba(0, 2, 8, var(--overlay-opacity)) 70%,
      rgba(0, 2, 8, calc(var(--overlay-opacity) * 0.8)) 100%
    );
  backdrop-filter: blur(var(--panel-blur)) saturate(1.2);
  -webkit-backdrop-filter: blur(var(--panel-blur)) saturate(1.2);
  transition: width 0.5s cubic-bezier(0.4, 0, 0.2, 1),
              left 0.5s cubic-bezier(0.4, 0, 0.2, 1),
              right 0.5s cubic-bezier(0.4, 0, 0.2, 1),
              top 0.5s cubic-bezier(0.4, 0, 0.2, 1),
              bottom 0.5s cubic-bezier(0.4, 0, 0.2, 1),
              border-radius 0.5s cubic-bezier(0.4, 0, 0.2, 1),
              background 0.4s ease,
              backdrop-filter 0.4s ease;
  animation: panel-enter 0.8s cubic-bezier(0.4, 0, 0.2, 1) both;
}

@keyframes panel-enter {
  from {
    opacity: 0;
    backdrop-filter: blur(0px);
    -webkit-backdrop-filter: blur(0px);
  }
  to {
    opacity: 1;
    backdrop-filter: blur(var(--panel-blur)) saturate(1.2);
    -webkit-backdrop-filter: blur(var(--panel-blur)) saturate(1.2);
  }
}

/* Glowing edge on the open side */
#overlay::after {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  width: 1px;
  background: linear-gradient(
    180deg,
    transparent 0%,
    rgba(255, 255, 255, 0.06) 20%,
    rgba(255, 255, 255, 0.12) 50%,
    rgba(255, 255, 255, 0.06) 80%,
    transparent 100%
  );
  transition: opacity 0.3s ease;
}

#overlay.no-edge-glow::after {
  opacity: 0;
}

/* Soft gradient fade into video */
#overlay::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  width: 80px;
  pointer-events: none;
}

#overlay.left {
  left: var(--panel-inset);
  right: auto;
}

#overlay.left::after {
  right: 0;
}

#overlay.left::before {
  right: -80px;
  background: linear-gradient(to right, rgba(0, 2, 8, calc(var(--overlay-opacity) * 0.5)), transparent);
}

#overlay.right {
  right: var(--panel-inset);
  left: auto;
}

#overlay.right::after {
  left: 0;
}

#overlay.right::before {
  left: -80px;
  background: linear-gradient(to left, rgba(0, 2, 8, calc(var(--overlay-opacity) * 0.5)), transparent);
}

/* Light theme overrides */
[data-theme="light"] #overlay {
  background:
    linear-gradient(
      180deg,
      rgba(255, 255, 255, calc(var(--overlay-opacity) * 0.8)) 0%,
      rgba(255, 255, 255, var(--overlay-opacity)) 30%,
      rgba(255, 255, 255, var(--overlay-opacity)) 70%,
      rgba(255, 255, 255, calc(var(--overlay-opacity) * 0.8)) 100%
    );
}

[data-theme="light"] #overlay::after {
  background: linear-gradient(
    180deg,
    transparent 0%,
    rgba(0, 0, 0, 0.06) 20%,
    rgba(0, 0, 0, 0.1) 50%,
    rgba(0, 0, 0, 0.06) 80%,
    transparent 100%
  );
}

[data-theme="light"] #overlay.left::before {
  background: linear-gradient(to right, rgba(255, 255, 255, calc(var(--overlay-opacity) * 0.5)), transparent);
}

[data-theme="light"] #overlay.right::before {
  background: linear-gradient(to left, rgba(255, 255, 255, calc(var(--overlay-opacity) * 0.5)), transparent);
}

[data-theme="light"] #video-container::after {
  background: radial-gradient(ellipse at center, transparent 50%, rgba(255, 255, 255, 0.3) 100%);
}

/* ── Content ── */
#overlay-content {
  text-align: var(--text-align);
  width: 100%;
  animation: content-enter 1s cubic-bezier(0.4, 0, 0.2, 1) 0.3s both;
}

@keyframes content-enter {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

#text-display {
  font-family: 'DM Sans', sans-serif;
  font-size: var(--font-size);
  font-weight: 700;
  color: var(--text);
  line-height: 1.25;
  white-space: pre-line;
  letter-spacing: var(--letter-spacing);
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
  transition: color 0.3s ease, letter-spacing 0.3s ease;
}

#text-display.hidden {
  display: none;
}

/* Accent divider between text and countdown */
#divider {
  width: 48px;
  height: 3px;
  background: var(--accent);
  border-radius: 2px;
  margin: 1.8rem auto;
  transition: background 0.3s ease, box-shadow 0.3s ease, margin 0.3s ease;
  box-shadow: 0 0 12px color-mix(in srgb, var(--accent) 40%, transparent);
}

/* Divider alignment classes (set by JS) */
#divider.align-left {
  margin-left: 0;
  margin-right: auto;
}

#divider.align-right {
  margin-left: auto;
  margin-right: 0;
}

#divider.hidden {
  display: none;
}

#countdown {
  font-family: 'Inter', sans-serif;
  font-size: calc(var(--font-size) * var(--countdown-scale));
  font-weight: 900;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.06em;
  text-shadow: 0 0 30px color-mix(in srgb, var(--accent) 25%, transparent);
  transition: color 0.3s ease, text-shadow 0.3s ease, font-size 0.3s ease;
}

#countdown.hidden {
  display: none;
}

/* Empty state: hide divider when no countdown */
#countdown:empty ~ #divider,
#countdown:empty {
  display: none;
}

#countdown.expired {
  color: var(--red);
  text-shadow: 0 0 30px rgba(230, 29, 43, 0.3);
  animation: pulse-glow 2s ease-in-out infinite;
}

@keyframes pulse-glow {
  0%, 100% {
    opacity: 1;
    text-shadow:
      0 0 20px rgba(230, 29, 43, 0.3),
      0 0 40px rgba(230, 29, 43, 0.1);
  }
  50% {
    opacity: 0.8;
    text-shadow:
      0 0 40px rgba(230, 29, 43, 0.6),
      0 0 80px rgba(230, 29, 43, 0.3),
      0 0 120px rgba(230, 29, 43, 0.1);
  }
}

/* ── Play prompt ── */
#play-prompt {
  display: none;
  position: absolute;
  inset: 0;
  background: rgba(0, 2, 8, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: white;
  font-family: 'DM Sans', sans-serif;
  font-size: 1.5rem;
  font-weight: 500;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  z-index: 100;
}

#play-prompt.visible {
  display: flex;
}

#play-prompt span {
  padding: 1.2rem 2.8rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 100px;
  background: rgba(255, 255, 255, 0.05);
  transition: all 0.25s ease;
  letter-spacing: 0.03em;
}

#play-prompt:hover span {
  border-color: rgba(255, 255, 255, 0.4);
  background: rgba(255, 255, 255, 0.1);
  transform: scale(1.03);
}

/* ── Responsive ── */
@media (max-width: 768px) {
  #overlay {
    padding: 2.5rem 2rem;
  }
}

@media (max-width: 480px) {
  #overlay {
    width: 100% !important;
    padding: 2rem 1.5rem;
    border-radius: 0 !important;
  }

  #overlay.left,
  #overlay.right {
    left: 0;
    right: 0;
  }

  #overlay::before {
    display: none;
  }
}