:root {
  --bg: #0a0b12;
  --bg-2: #12141f;
  --panel: rgba(255, 255, 255, 0.04);
  --panel-border: rgba(255, 255, 255, 0.09);
  --text: #eef0f6;
  --muted: #9096ab;
  --accent-1: #8fa8ff;
  --accent-2: #6a53f0;
  --accent-text: #ffffff;
  --shadow: 0 12px 40px rgba(0, 0, 0, 0.45);
  color-scheme: dark;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f4f5fb;
    --bg-2: #eceefa;
    --panel: rgba(255, 255, 255, 0.7);
    --panel-border: rgba(20, 20, 40, 0.08);
    --text: #14151f;
    --muted: #5c6178;
    --shadow: 0 12px 32px rgba(30, 30, 60, 0.12);
    color-scheme: light;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  position: relative;
  overflow-x: hidden;
}

.bg-glow {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(560px circle at 15% -10%, color-mix(in srgb, var(--accent-1) 28%, transparent), transparent 60%),
    radial-gradient(620px circle at 85% 5%, color-mix(in srgb, var(--accent-2) 30%, transparent), transparent 60%),
    radial-gradient(500px circle at 50% 120%, color-mix(in srgb, var(--accent-2) 16%, transparent), transparent 60%),
    var(--bg-2);
  filter: blur(10px);
}

.page-header {
  padding: 4rem 1.5rem 1.5rem;
  text-align: center;
}

.eyebrow {
  display: inline-block;
  padding: 0.35rem 0.9rem;
  margin-bottom: 1.1rem;
  border-radius: 999px;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  backdrop-filter: blur(12px);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-header h1 {
  margin: 0 0 0.6rem;
  font-size: clamp(2.4rem, 6vw, 3.4rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.05;
  background: linear-gradient(120deg, var(--text) 30%, var(--accent-1) 70%, var(--accent-2) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.page-header p {
  margin: 0 auto;
  max-width: 34rem;
  color: var(--muted);
  font-size: 1.05rem;
}

.layout {
  max-width: 900px;
  margin: 0 auto;
  padding: 1.5rem 1.5rem 2rem;
  display: grid;
  gap: 1.5rem;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 20px;
  padding: 1.75rem;
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow);
}

.panel h2 {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin: 0 0 1.25rem;
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.step {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.7rem;
  height: 1.7rem;
  flex: none;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-1), var(--accent-2));
  color: #fff;
  font-size: 0.85rem;
  font-weight: 700;
}

.dropzone {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 220px;
  border: 1.5px dashed var(--panel-border);
  border-radius: 16px;
  cursor: pointer;
  overflow: hidden;
  background: color-mix(in srgb, var(--panel) 60%, transparent);
  transition: border-color 0.2s ease, background 0.2s ease;
}

.dropzone:hover {
  border-color: color-mix(in srgb, var(--accent-1) 60%, var(--panel-border));
}

.dropzone.dragging {
  border-color: var(--accent-1);
  background: color-mix(in srgb, var(--accent-1) 8%, var(--panel));
}

.dropzone #preview {
  max-width: 100%;
  max-height: 320px;
  object-fit: contain;
}

#dropzone-text {
  color: var(--muted);
  padding: 1rem;
  text-align: center;
}

.style-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 0.85rem;
}

.style-card {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  text-align: left;
  background: color-mix(in srgb, var(--panel) 70%, transparent);
  border: 1px solid var(--panel-border);
  border-radius: 14px;
  padding: 0.8rem;
  color: var(--text);
  cursor: pointer;
  font: inherit;
  transition: transform 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}

.style-card:hover {
  transform: translateY(-3px);
  border-color: color-mix(in srgb, var(--accent-1) 45%, var(--panel-border));
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.25);
}

.before-after {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.4rem;
}

.before-after figure {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.before-after img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  border-radius: 10px;
  display: block;
}

.before-after figcaption {
  text-align: center;
  font-size: 0.68rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.style-card strong {
  font-size: 0.95rem;
  font-weight: 700;
}

.style-card span:not(.step) {
  font-size: 0.8rem;
  color: var(--muted);
  line-height: 1.35;
}

.style-card.selected {
  border-color: transparent;
  background:
    linear-gradient(color-mix(in srgb, var(--panel) 92%, var(--bg)), color-mix(in srgb, var(--panel) 92%, var(--bg))) padding-box,
    linear-gradient(135deg, var(--accent-1), var(--accent-2)) border-box;
  border: 1.5px solid transparent;
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--accent-2) 35%, transparent), 0 10px 26px rgba(0, 0, 0, 0.3);
}

#generate-btn {
  width: 100%;
  padding: 0.95rem;
  border: none;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--accent-1), var(--accent-2));
  color: var(--accent-text);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  cursor: pointer;
  box-shadow: 0 10px 28px color-mix(in srgb, var(--accent-2) 40%, transparent);
  transition: transform 0.15s ease, box-shadow 0.15s ease, filter 0.15s ease;
}

#generate-btn:hover:not(:disabled) {
  transform: translateY(-1px);
  filter: brightness(1.08);
  box-shadow: 0 14px 32px color-mix(in srgb, var(--accent-2) 50%, transparent);
}

#generate-btn:active:not(:disabled) {
  transform: translateY(0);
}

#generate-btn:disabled {
  opacity: 0.4;
  box-shadow: none;
  cursor: not-allowed;
}

.status {
  min-height: 1.2em;
  margin-top: 0.75rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.result {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.85rem;
  margin-top: 1.25rem;
}

.result img {
  max-width: 100%;
  border-radius: 16px;
  box-shadow: var(--shadow);
}

.result a {
  color: var(--accent-1);
  text-decoration: none;
  font-weight: 700;
}

.result a:hover {
  text-decoration: underline;
}

.page-footer {
  text-align: center;
  color: var(--muted);
  font-size: 0.8rem;
  padding: 1rem 1.5rem 3rem;
}

.page-footer code {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 6px;
  padding: 0.1rem 0.4rem;
}