:root {
  --paper: #050505;
  --paper-2: #111111;
  --ink: #f7f7f2;
  --ink-soft: rgba(247, 247, 242, 0.72);
  --muted: rgba(247, 247, 242, 0.46);
  --panel: rgba(13, 13, 13, 0.78);
  --panel-strong: rgba(18, 18, 18, 0.94);
  --line: rgba(247, 247, 242, 0.14);
  --line-strong: rgba(247, 247, 242, 0.30);
  --accent: #d11f1f;
  --accent-2: #fafafa;
  --accent-soft: rgba(209, 31, 31, 0.14);
  --accent-faint: rgba(209, 31, 31, 0.08);
  --shadow: rgba(0, 0, 0, 0.48);
  --progress: 0deg;
  --gate-progress: 100%;
}

[data-theme="light"] {
  --paper: #f8f7f1;
  --paper-2: #ece8dd;
  --ink: #111111;
  --ink-soft: rgba(17, 17, 17, 0.72);
  --muted: rgba(17, 17, 17, 0.48);
  --panel: rgba(255, 255, 255, 0.76);
  --panel-strong: rgba(255, 255, 255, 0.94);
  --line: rgba(17, 17, 17, 0.12);
  --line-strong: rgba(17, 17, 17, 0.28);
  --accent: #991b1b;
  --accent-2: #111111;
  --accent-soft: rgba(153, 27, 27, 0.12);
  --accent-faint: rgba(153, 27, 27, 0.07);
  --shadow: rgba(17, 17, 17, 0.16);
}

* { box-sizing: border-box; }

html,
body {
  width: 100%;
  min-height: 100%;
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

body {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 18px;
  overflow: auto;
}

input,
kbd { font: inherit; }

.backdrop {
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(circle at 16% 18%, var(--accent-faint), transparent 32%),
    radial-gradient(circle at 84% 78%, rgba(255,255,255,0.06), transparent 34%),
    linear-gradient(135deg, var(--paper) 0%, var(--paper) 46%, var(--paper-2) 100%);
}

.backdrop::before,
.backdrop::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.backdrop::before {
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(circle at 50% 48%, black 0 38%, transparent 74%);
}

.backdrop::after {
  background:
    linear-gradient(128deg, transparent 0 47%, var(--line-strong) 48%, transparent 49% 100%),
    linear-gradient(128deg, transparent 0 52%, var(--accent-soft) 53%, transparent 54% 100%);
  opacity: 0.70;
}

.stage {
  width: min(1240px, 100%);
  min-height: min(760px, calc(100vh - 36px));
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: 22px;
  padding: clamp(20px, 3vw, 36px);
  border-radius: 34px;
  background: linear-gradient(180deg, var(--panel-strong), var(--panel));
  border: 1px solid var(--line);
  box-shadow: 0 26px 90px var(--shadow), inset 0 1px 0 rgba(255,255,255,0.08);
  position: relative;
  overflow: hidden;
}

.stage::before,
.stage::after {
  content: "";
  position: absolute;
  pointer-events: none;
}

.stage::before {
  inset: 16px;
  border-radius: 26px;
  border: 1px solid var(--line);
}

.stage::after {
  width: 120%;
  height: 1px;
  top: 32%;
  left: -10%;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0.35;
  transform: rotate(-12deg);
  transform-origin: center;
}

header,
.content,
footer {
  position: relative;
  z-index: 2;
}

header,
footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand-mark {
  width: 38px;
  height: 38px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--panel-strong), var(--accent-soft));
  border: 1px solid var(--line-strong);
  box-shadow: 0 10px 28px var(--shadow);
  color: var(--accent);
  font-weight: 950;
}

.label {
  color: var(--ink);
  font-size: 13px;
  font-weight: 850;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  white-space: nowrap;
}

.session-note {
  margin-top: 3px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 620;
}

.status-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.status,
.mode-pill {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 10px 13px;
  border-radius: 999px;
  background: var(--panel);
  border: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.10em;
  text-transform: uppercase;
}

.status::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 18px var(--accent);
}

.mode-pill {
  color: var(--accent-2);
  border-color: var(--line-strong);
}

.content {
  display: grid;
  grid-template-columns: minmax(310px, 0.72fr) minmax(0, 1.28fr);
  gap: clamp(20px, 3.2vw, 42px);
  align-items: stretch;
  min-height: 0;
}

.main-panel,
.visual-panel {
  min-width: 0;
  border-radius: 30px;
}

.main-panel {
  display: grid;
  grid-template-rows: auto auto auto;
  gap: 18px;
  align-content: center;
  padding: clamp(14px, 2vw, 24px);
}

.timer-zone {
  display: grid;
  place-items: center;
  text-align: center;
  min-height: 220px;
}

.timer-ring {
  width: min(330px, 100%, 42vh);
  aspect-ratio: 1;
  position: relative;
  display: grid;
  place-items: center;
}

.timer-ring::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background:
    conic-gradient(from -90deg, var(--accent) var(--progress), rgba(127,127,127,0.14) 0),
    radial-gradient(circle at center, var(--accent-soft), transparent 62%);
  mask-image: radial-gradient(circle, transparent 0 58%, black 59% 63%, transparent 64%);
  filter: drop-shadow(0 12px 34px var(--shadow));
}

.timer-ring::after {
  content: "";
  position: absolute;
  inset: 12%;
  border-radius: 50%;
  border: 1px dashed var(--line-strong);
}

.crosshair {
  position: absolute;
  inset: 8%;
  border-radius: 50%;
  background:
    linear-gradient(var(--accent-2), var(--accent-2)) center top / 1px 28px no-repeat,
    linear-gradient(var(--accent-2), var(--accent-2)) center bottom / 1px 28px no-repeat,
    linear-gradient(90deg, var(--accent-2), var(--accent-2)) left center / 28px 1px no-repeat,
    linear-gradient(90deg, var(--accent-2), var(--accent-2)) right center / 28px 1px no-repeat;
  opacity: 0.20;
  pointer-events: none;
}

.timer-copy {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 10px;
  justify-items: center;
}

.time {
  font-variant-numeric: tabular-nums;
  font-size: clamp(58px, 8vw, 108px);
  line-height: 0.84;
  font-weight: 850;
  letter-spacing: -0.09em;
  color: var(--ink);
}

.phase {
  color: var(--muted);
  font-size: 11px;
  font-weight: 850;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.dialogue-card {
  width: 100%;
  min-height: 126px;
  display: grid;
  align-content: center;
  gap: 11px;
  padding: clamp(16px, 2.2vw, 22px);
  border-radius: 26px;
  background: var(--panel);
  border: 1px solid var(--line);
  box-shadow: 0 18px 50px var(--shadow), inset 0 1px 0 rgba(255,255,255,0.08);
  transition: opacity 180ms ease-out, transform 180ms ease-out, filter 180ms ease-out;
}

.dialogue-card.out {
  opacity: 0;
  transform: translateY(6px);
  filter: blur(4px);
}

.speaker {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--accent);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.speaker::before {
  content: "";
  width: 32px;
  height: 1px;
  background: linear-gradient(90deg, var(--accent), transparent);
  opacity: 0.70;
}

.line {
  margin: 0;
  color: var(--ink-soft);
  font-size: clamp(20px, 2vw, 29px);
  line-height: 1.17;
  font-weight: 620;
  letter-spacing: -0.04em;
  text-wrap: balance;
}

.momentum-block {
  display: grid;
  gap: 12px;
  padding: 15px;
  border-radius: 24px;
  background: linear-gradient(180deg, rgba(127,127,127,0.10), rgba(127,127,127,0.05));
  border: 1px solid var(--line);
}

.momentum-head,
.momentum-copy {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 850;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.momentum-head strong {
  color: var(--accent-2);
  font-size: 13px;
}

.momentum-rail {
  display: grid;
  grid-template-columns: repeat(var(--segments, 24), minmax(5px, 1fr));
  gap: 5px;
  min-height: 44px;
  align-items: end;
}

.cut-segment {
  height: calc(12px + (var(--i) % 6) * 5px);
  border-radius: 999px 999px 2px 2px;
  background: rgba(127,127,127,0.16);
  border: 1px solid var(--line);
  transform-origin: bottom;
  transition: transform 220ms ease-out, background 220ms ease-out, box-shadow 220ms ease-out, opacity 220ms ease-out;
}

.cut-segment.is-active {
  background: linear-gradient(180deg, var(--accent-2), var(--accent));
  border-color: var(--line-strong);
  box-shadow: 0 0 18px var(--accent-soft);
}

.cut-segment.is-hot {
  transform: scaleY(1.24);
  box-shadow: 0 0 24px var(--accent);
}

.stage.milestone .timer-ring::before,
.stage.milestone .dialogue-card,
.stage.milestone .momentum-block {
  animation: milestonePulse 480ms ease-out;
}

@keyframes milestonePulse {
  0% { filter: brightness(1); }
  42% { filter: brightness(1.22); }
  100% { filter: brightness(1); }
}

.visual-panel {
  display: grid;
  grid-template-rows: minmax(420px, 1fr) auto;
  gap: 16px;
  padding: 16px;
  background: rgba(127,127,127,0.08);
  border: 1px solid var(--line);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.07);
  min-height: 0;
}

.image-wall {
  min-height: 420px;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr 0.75fr;
  grid-template-rows: repeat(6, minmax(46px, 1fr));
  gap: 10px;
  border-radius: 26px;
  overflow: hidden;
  isolation: isolate;
  position: relative;
}

.image-wall::before,
.image-wall::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 2;
}

.image-wall::before {
  background:
    radial-gradient(circle at 50% 24%, transparent 0 26%, rgba(0,0,0,0.10) 46%, rgba(0,0,0,0.62) 100%),
    linear-gradient(180deg, transparent 0%, rgba(0,0,0,0.66) 100%);
}

[data-theme="light"] .image-wall::before {
  background:
    radial-gradient(circle at 50% 24%, transparent 0 26%, rgba(255,255,255,0.04) 46%, rgba(248,247,241,0.50) 100%),
    linear-gradient(180deg, transparent 0%, rgba(248,247,241,0.58) 100%);
}

.image-wall::after {
  background-image:
    linear-gradient(130deg, transparent 0 42%, var(--accent-soft) 43%, transparent 46% 100%),
    linear-gradient(118deg, transparent 0 20%, rgba(255,255,255,0.16) 21%, transparent 24% 100%);
}

.gallery-tile {
  position: relative;
  min-width: 0;
  min-height: 0;
  overflow: hidden;
  background: #050505;
  border: 1px solid var(--line);
  opacity: 0.98;
}

.gallery-tile img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: grayscale(0.18) saturate(0.88) contrast(1.08);
  transform: scale(1.02);
  transition: opacity 520ms ease-out, transform 5200ms linear, filter 520ms ease-out;
}

.gallery-tile.is-swapping img { opacity: 0; }
.gallery-tile:hover img { filter: grayscale(0.05) saturate(1) contrast(1.08); }
.gallery-tile:nth-child(1) { grid-column: 1 / 2; grid-row: 1 / 7; border-radius: 24px 10px 10px 24px; }
.gallery-tile:nth-child(2) { grid-column: 2 / 3; grid-row: 1 / 4; border-radius: 10px; }
.gallery-tile:nth-child(3) { grid-column: 2 / 3; grid-row: 4 / 7; border-radius: 10px; }
.gallery-tile:nth-child(4) { grid-column: 3 / 4; grid-row: 1 / 3; border-radius: 10px 24px 10px 10px; }
.gallery-tile:nth-child(5) { grid-column: 3 / 4; grid-row: 3 / 5; border-radius: 10px; }
.gallery-tile:nth-child(6) { grid-column: 3 / 4; grid-row: 5 / 7; border-radius: 10px 10px 24px 10px; }
.gallery-tile:nth-child(n + 7) { display: none; }

.return-steps {
  display: grid;
  gap: 12px;
  padding: 16px;
  border-radius: 22px;
  background: var(--panel);
  border: 1px solid var(--line);
}

.steps-title {
  color: var(--muted);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.step {
  display: grid;
  grid-template-columns: 26px 1fr;
  gap: 10px;
  align-items: start;
  color: var(--ink-soft);
  font-size: 13px;
  line-height: 1.35;
  font-weight: 640;
}

.step b {
  width: 26px;
  height: 26px;
  display: grid;
  place-items: center;
  border-radius: 9px;
  background: var(--accent-soft);
  color: var(--accent);
  border: 1px solid var(--line);
  font-size: 11px;
}

.command-strip {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.command-strip span,
.command-flash {
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: 999px;
  padding: 9px 12px;
}

kbd {
  color: var(--accent-2);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.command-flash {
  min-width: 150px;
  color: var(--accent-2);
  font-size: 12px;
  font-weight: 850;
  letter-spacing: 0.08em;
  text-align: center;
  text-transform: uppercase;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 180ms ease-out, transform 180ms ease-out;
}

.command-flash.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.gate {
  position: fixed;
  inset: 0;
  z-index: 10;
  display: grid;
  place-items: center;
  padding: 20px;
  background: rgba(0,0,0,0.62);
  backdrop-filter: blur(18px);
}

.gate[hidden] { display: none; }

.gate-card {
  width: min(540px, 100%);
  display: grid;
  gap: 22px;
  padding: clamp(22px, 4vw, 34px);
  border-radius: 30px;
  background: var(--panel-strong);
  border: 1px solid var(--line-strong);
  box-shadow: 0 30px 100px rgba(0,0,0,0.45);
  position: relative;
  overflow: hidden;
}

.gate-card::before {
  content: "";
  position: absolute;
  width: 160%;
  height: 1px;
  left: -30%;
  top: 32%;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  transform: rotate(-13deg);
  opacity: 0.52;
}

.gate-copy,
.gate-form {
  position: relative;
  z-index: 1;
}

.gate-copy {
  display: grid;
  gap: 8px;
}

.gate-kicker {
  color: var(--accent);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.gate-title {
  margin: 0;
  color: var(--ink);
  font-size: clamp(38px, 7vw, 68px);
  line-height: 0.90;
  letter-spacing: -0.08em;
}

.gate-text {
  margin: 0;
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.5;
  font-weight: 610;
}

.gate-text strong {
  color: var(--accent-2);
  font-weight: 900;
}

.gate-form {
  display: grid;
  gap: 14px;
}

.duration-field {
  display: grid;
  gap: 8px;
}

.duration-field label {
  color: var(--muted);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.duration-field input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: rgba(127,127,127,0.08);
  color: var(--ink);
  padding: 18px 18px;
  font-size: clamp(42px, 12vw, 84px);
  line-height: 1;
  font-weight: 900;
  letter-spacing: -0.08em;
  outline: none;
  text-align: center;
}

.duration-field input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
}

.gate-meter {
  height: 8px;
  border-radius: 999px;
  background: rgba(127,127,127,0.16);
  border: 1px solid var(--line);
  overflow: hidden;
}

.gate-meter span {
  display: block;
  width: var(--gate-progress);
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transition: width 240ms linear;
}

.gate-help {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition-duration: 0.001ms !important;
    animation-duration: 0.001ms !important;
  }
}

@media (max-width: 980px) {
  .stage { min-height: auto; }
  .content { grid-template-columns: 1fr; }
  .visual-panel { grid-template-rows: minmax(360px, 1fr) auto; }
  .image-wall { min-height: 360px; }
  .timer-zone { min-height: 210px; }
  .timer-ring { width: min(310px, 100%, 40vh); }
}

@media (max-width: 680px) {
  body { padding: 12px; }
  .stage {
    padding: 18px;
    border-radius: 28px;
  }
  header,
  footer {
    align-items: flex-start;
    flex-direction: column;
  }
  .status-row { justify-content: flex-start; }
  .visual-panel { grid-template-rows: minmax(300px, 1fr) auto; }
  .image-wall {
    min-height: 300px;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: repeat(5, minmax(44px, 1fr));
  }
  .gallery-tile:nth-child(1) { grid-column: 1 / 3; grid-row: 1 / 3; border-radius: 22px 22px 10px 10px; }
  .gallery-tile:nth-child(2) { grid-column: 1 / 2; grid-row: 3 / 5; border-radius: 10px; }
  .gallery-tile:nth-child(3) { grid-column: 2 / 3; grid-row: 3 / 5; border-radius: 10px; }
  .gallery-tile:nth-child(4) { grid-column: 1 / 2; grid-row: 5 / 6; border-radius: 10px 10px 10px 22px; }
  .gallery-tile:nth-child(5) { grid-column: 2 / 3; grid-row: 5 / 6; border-radius: 10px 10px 22px 10px; }
  .gallery-tile:nth-child(n + 6) { display: none; }
  .dialogue-card { min-height: 144px; }
  .command-flash { min-width: auto; }
}