:root {
  --bg: #0f1419;
  --bg-elevated: #1a222c;
  --bg-soft: #243040;
  --text: #f3f6fa;
  --muted: #9aabbd;
  --accent: #e85d4c;
  --accent-hover: #ff6f5c;
  --ok: #3ecf8e;
  --warn: #f0b429;
  --border: rgba(255, 255, 255, 0.08);
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.35);
  --radius: 16px;
  --font: "Pretendard", "Apple SD Gothic Neo", "Noto Sans KR", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

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

body {
  font-family: var(--font);
  color: var(--text);
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(232, 93, 76, 0.22), transparent 55%),
    radial-gradient(900px 500px at 100% 0%, rgba(62, 207, 142, 0.12), transparent 50%),
    var(--bg);
  line-height: 1.5;
}

.page {
  max-width: 720px;
  margin: 0 auto;
  padding: 48px 20px 64px;
}

.header {
  margin-bottom: 28px;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1 {
  margin: 0 0 10px;
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  letter-spacing: -0.03em;
}

.subtitle {
  margin: 0;
  color: var(--muted);
  font-size: 1rem;
}

.card {
  background: linear-gradient(180deg, rgba(255,255,255,0.03), transparent 40%), var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 24px;
}

.label {
  display: block;
  margin-bottom: 10px;
  font-weight: 600;
  font-size: 0.95rem;
}

.input-row {
  display: flex;
  gap: 10px;
}

input#codes {
  flex: 1;
  min-width: 0;
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--bg-soft);
  color: var(--text);
  font-size: 1rem;
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

input#codes::placeholder {
  color: #7d8fa3;
}

input#codes:focus {
  border-color: rgba(232, 93, 76, 0.7);
  box-shadow: 0 0 0 3px rgba(232, 93, 76, 0.18);
}

button#submit {
  flex-shrink: 0;
  padding: 0 22px;
  border: none;
  border-radius: 12px;
  background: var(--accent);
  color: white;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.15s ease, transform 0.1s ease;
}

button#submit:hover:not(:disabled) {
  background: var(--accent-hover);
}

button#submit:active:not(:disabled) {
  transform: translateY(1px);
}

button#submit:disabled {
  opacity: 0.6;
  cursor: wait;
}

.hint {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 0.88rem;
}

.status {
  margin-top: 18px;
  padding: 12px 14px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--muted);
  font-size: 0.92rem;
}

.errors {
  margin-top: 14px;
  display: grid;
  gap: 8px;
}

.error-item {
  padding: 12px 14px;
  border-radius: 10px;
  background: rgba(240, 180, 41, 0.12);
  border: 1px solid rgba(240, 180, 41, 0.28);
  color: #ffe6a3;
  font-size: 0.92rem;
}

.results {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.film-item {
  padding: 16px 18px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
}

.film-title {
  margin: 0 0 10px;
  font-size: 1.02rem;
  font-weight: 600;
}

.film-title .code {
  display: inline-block;
  margin-right: 6px;
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(62, 207, 142, 0.15);
  color: var(--ok);
  font-size: 0.85rem;
  font-weight: 700;
}

.film-link {
  color: #9ecbff;
  text-decoration: none;
  word-break: break-all;
  font-size: 0.9rem;
}

.film-link:hover {
  text-decoration: underline;
  color: #c5e0ff;
}

.footer {
  margin-top: 28px;
  text-align: center;
  color: #6f8093;
  font-size: 0.82rem;
}

@media (max-width: 560px) {
  .page {
    padding: 28px 16px 48px;
  }

  .card {
    padding: 18px;
  }

  .input-row {
    flex-direction: column;
  }

  button#submit {
    height: 48px;
  }
}