/* ===== CSS Reset & Variables ===== */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg-primary: #0d1117;
  --bg-secondary: #161b22;
  --bg-card: #1c2333;
  --text-primary: #e6edf3;
  --text-secondary: #8b949e;
  --accent: #f5c518;
  --accent-hover: #e4b717;
  --danger: #f85149;
  --success: #3fb950;
  --border: #30363d;
  --radius: 12px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
  --transition: 0.3s ease;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ===== Header ===== */
.header {
  background: var(--bg-secondary);
  padding: 1rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header__brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.header__icon {
  font-size: 1.8rem;
}

.header__title {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--accent);
}

.header__nav {
  display: flex;
  gap: 0.5rem;
}

.nav-btn {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border);
  padding: 0.5rem 1rem;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.9rem;
  transition: var(--transition);
}

.nav-btn:hover,
.nav-btn.active {
  color: var(--accent);
  border-color: var(--accent);
}

.badge {
  background: var(--accent);
  color: var(--bg-primary);
  font-size: 0.75rem;
  padding: 0.1rem 0.45rem;
  border-radius: 50%;
  font-weight: 700;
  margin-left: 0.25rem;
}

/* ===== Main ===== */
.main {
  flex: 1;
  padding: 2rem;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

/* ===== Search ===== */
.search-section {
  margin-bottom: 2rem;
}

.search-box {
  display: flex;
  gap: 0.5rem;
  max-width: 600px;
  margin: 0 auto;
}

.search-box__input {
  flex: 1;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-size: 1rem;
  outline: none;
  transition: var(--transition);
}

.search-box__input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(245, 197, 24, 0.15);
}

.search-box__btn {
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: var(--radius);
  background: var(--accent);
  color: var(--bg-primary);
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
  transition: var(--transition);
}

.search-box__btn:hover {
  background: var(--accent-hover);
}

/* ===== Results Grid ===== */
.results {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1.5rem;
}

/* ===== Movie Card ===== */
.card {
  background: var(--bg-card);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition);
  position: relative;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
}

.card__poster {
  width: 100%;
  aspect-ratio: 2 / 3;
  object-fit: cover;
  display: block;
}

.card__info {
  padding: 0.75rem;
}

.card__title {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card__year {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.card__fav-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  background: rgba(0, 0, 0, 0.6);
  border: none;
  font-size: 1.3rem;
  cursor: pointer;
  border-radius: 50%;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.card__fav-btn:hover {
  background: rgba(0, 0, 0, 0.85);
}

.card__fav-btn.saved {
  color: var(--accent);
}

/* ===== Modal ===== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  padding: 1rem;
}

.modal {
  background: var(--bg-secondary);
  border-radius: var(--radius);
  max-width: 720px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
}

.modal__close {
  position: absolute;
  top: 12px;
  right: 16px;
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 1.8rem;
  cursor: pointer;
  transition: var(--transition);
}

.modal__close:hover {
  color: var(--danger);
}

.modal__content {
  padding: 2rem;
}

.detail {
  display: flex;
  gap: 1.5rem;
}

.detail__poster {
  width: 220px;
  border-radius: 8px;
  flex-shrink: 0;
}

.detail__info {
  flex: 1;
}

.detail__title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.detail__meta {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.detail__rating {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  background: var(--accent);
  color: var(--bg-primary);
  padding: 0.25rem 0.6rem;
  border-radius: 6px;
  font-weight: 700;
  font-size: 0.85rem;
  margin-bottom: 1rem;
}

.detail__plot {
  line-height: 1.6;
  margin-bottom: 1rem;
}

.detail__label {
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin-top: 0.5rem;
}

/* ===== Loader & Messages ===== */
.loader {
  display: flex;
  justify-content: center;
  padding: 3rem;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 4px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.message {
  text-align: center;
  color: var(--text-secondary);
  padding: 2rem;
  font-size: 1.1rem;
}

.section-title {
  margin-bottom: 1.5rem;
  color: var(--accent);
}

.hidden {
  display: none !important;
}

/* ===== Footer ===== */
.footer {
  text-align: center;
  padding: 1.5rem;
  color: var(--text-secondary);
  font-size: 0.85rem;
  border-top: 1px solid var(--border);
}

/* ===== Responsive ===== */
@media (max-width: 600px) {
  .header {
    flex-direction: column;
    gap: 0.75rem;
  }

  .detail {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .detail__poster {
    width: 160px;
  }

  .results {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  }
}