:root {
  --ink: #0b1220;
  --surface: #121a2a;
  --canvas: #f4f7fb;
  --accent: #3ddc84;
  --accent2: #5b8cff;
  --muted: #64748b;
  --outline: #334155;
  --danger: #f87171;
  --radius: 24px;
  --font-display: "Outfit", "Avenir Next", sans-serif;
  --font-body: "Source Sans 3", "Avenir Next", sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: var(--font-body);
  color: var(--canvas);
  background: var(--ink);
  line-height: 1.45;
}

.atmosphere {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(900px 520px at 12% 0%, color-mix(in srgb, var(--accent) 22%, transparent), transparent 60%),
    radial-gradient(800px 480px at 88% 18%, color-mix(in srgb, var(--accent2) 20%, transparent), transparent 55%),
    linear-gradient(180deg, #070b14 0%, var(--ink) 42%, #05080f 100%);
}

.topbar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  max-width: 820px;
  margin: 0 auto;
  padding: 28px 20px 8px;
}

.brand {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.55rem;
  letter-spacing: -0.03em;
}

.brand-sub {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 0.85rem;
}

.shell {
  max-width: 820px;
  margin: 0 auto;
  padding: 8px 20px 64px;
  display: grid;
  gap: 20px;
}

.hero {
  border-radius: var(--radius);
  padding: 28px 24px;
  background: linear-gradient(135deg, #0b1220 0%, #14302a 48%, #1a2744 100%);
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--accent2) 18%, transparent);
}

.hero-mark {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  color: var(--accent);
  margin-bottom: 10px;
}

.hero-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.6rem, 3vw, 2rem);
  letter-spacing: -0.03em;
}

.hero-copy {
  margin: 10px 0 0;
  color: #cbd5e1;
  max-width: 42rem;
}

.composer,
.plan,
.preview {
  display: grid;
  gap: 16px;
}

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

.field span {
  font-weight: 600;
  font-size: 0.95rem;
}

.field small,
.muted {
  color: var(--muted);
  font-size: 0.9rem;
}

input,
textarea {
  width: 100%;
  border: 1px solid var(--outline);
  background: color-mix(in srgb, var(--surface) 92%, black);
  color: var(--canvas);
  border-radius: 16px;
  padding: 14px 16px;
  font: inherit;
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

input:focus,
textarea:focus {
  border-color: color-mix(in srgb, var(--accent) 55%, var(--outline));
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 18%, transparent);
}

textarea {
  resize: vertical;
  min-height: 132px;
}

.shots-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.shots-head h3,
.plan h3,
.preview h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.shots-head p {
  margin: 6px 0 0;
}

.shots-row {
  display: flex;
  gap: 12px;
  overflow-x: auto;
  padding-bottom: 4px;
}

.shot {
  position: relative;
  width: 96px;
  height: 96px;
  flex: 0 0 auto;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--outline) 70%, transparent);
  background: #000;
}

.shot img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.shot button {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 28px;
  height: 28px;
  border: 0;
  border-radius: 999px;
  background: rgb(0 0 0 / 55%);
  color: white;
  cursor: pointer;
  font-size: 16px;
  line-height: 1;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border: 0;
  border-radius: 14px;
  padding: 12px 16px;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.15s ease, filter 0.15s ease, background 0.15s ease;
}

.btn:hover:not(:disabled) {
  transform: translateY(-1px);
  filter: brightness(1.05);
}

.btn:disabled {
  opacity: 0.55;
  cursor: wait;
}

.btn.primary {
  background: var(--accent);
  color: var(--ink);
  min-height: 54px;
  width: 100%;
  font-family: var(--font-display);
  font-weight: 700;
}

.btn.tonal {
  background: color-mix(in srgb, var(--accent2) 18%, var(--surface));
  color: var(--canvas);
  border: 1px solid color-mix(in srgb, var(--accent2) 28%, transparent);
}

.plan {
  padding: 18px;
  border-radius: 20px;
  background: var(--surface);
  border: 1px solid color-mix(in srgb, var(--outline) 70%, transparent);
}

.plan ul {
  margin: 0;
  padding-left: 1.1rem;
  display: grid;
  gap: 6px;
}

.preview video {
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: 16px;
  background: #000;
  display: block;
}

.status,
.error {
  margin: 0;
}

.error {
  color: var(--danger);
}

@media (max-width: 640px) {
  .topbar {
    flex-direction: column;
  }

  .shots-head {
    flex-direction: column;
  }
}