/* ===========================
   Reset & Base
   =========================== */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --color-bg: #fafaf9;
  --color-surface: #ffffff;
  --color-border: #e5e5e3;
  --color-text: #1a1a18;
  --color-text-muted: #6b6b67;
  --color-accent: #2d6a4f;
  --color-accent-light: #e8f5ee;
  --color-autocomplete-hover: #f4f4f2;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --font-mono: "Georgia", "Times New Roman", serif;
  --radius: 8px;
  --transition: 150ms ease;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-text);
  min-height: 100dvh;
}

/* ===========================
   Layout
   =========================== */

.view {
  max-width: 680px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ===========================
   Vista Indice
   =========================== */

.header {
  padding: 48px 0 32px;
  position: sticky;
  top: 0;
  background-color: var(--color-bg);
  z-index: 10;
  border-bottom: 1px solid transparent;
}

.header.scrolled {
  border-bottom-color: var(--color-border);
}

.site-title {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--color-text);
  margin-bottom: 24px;
}

/* Ricerca */

.search-wrapper {
  position: relative;
}

.search-input {
  width: 100%;
  padding: 12px 40px 12px 16px;
  font-size: 1rem;
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.search-input::placeholder {
  color: var(--color-text-muted);
}

.search-input:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-light);
}

.search-clear {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--color-text-muted);
  cursor: pointer;
  font-size: 0.9rem;
  padding: 4px;
  line-height: 1;
}

.search-clear:hover {
  color: var(--color-text);
}

/* Autocomplete */

.autocomplete-list {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  right: 0;
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
  list-style: none;
  z-index: 100;
  overflow: hidden;
}

.autocomplete-list li {
  padding: 12px 16px;
  cursor: pointer;
  font-size: 0.95rem;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border);
  transition: background var(--transition);
}

.autocomplete-list li:last-child {
  border-bottom: none;
}

.autocomplete-list li:hover,
.autocomplete-list li.active {
  background: var(--color-autocomplete-hover);
}

.autocomplete-list li mark {
  background: none;
  color: var(--color-accent);
  font-weight: 600;
}

/* Lista canzoni */

.song-list-container {
  padding: 24px 0 60px;
}

.song-list {
  list-style: none;
  counter-reset: song-counter;
}

.song-list li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid var(--color-border);
  cursor: pointer;
  transition: color var(--transition);
}

.song-list li:first-child {
  border-top: 1px solid var(--color-border);
}

.song-list li:hover .song-name {
  color: var(--color-accent);
}

.song-number {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  min-width: 28px;
  text-align: right;
  flex-shrink: 0;
  font-variant-numeric: tabular-nums;
}

.song-name {
  font-size: 1rem;
  font-weight: 500;
  transition: color var(--transition);
}

.no-results {
  color: var(--color-text-muted);
  padding: 32px 0;
  font-size: 0.95rem;
}

/* ===========================
   Vista Canzone
   =========================== */

.song-header {
  padding: 24px 0 20px;
  position: sticky;
  top: 0;
  background-color: var(--color-bg);
  z-index: 10;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.back-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: none;
  border: none;
  color: var(--color-accent);
  font-size: 0.9rem;
  font-family: var(--font-sans);
  cursor: pointer;
  padding: 0;
  font-weight: 500;
  transition: opacity var(--transition);
}

.back-btn:hover {
  opacity: 0.7;
}

.song-title {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.song-content {
  padding: 32px 0 80px;
}

.song-lyrics {
  font-family: var(--font-sans);
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--color-text);
  white-space: pre-wrap;
  word-break: break-word;
}

/* ===========================
   Responsive
   =========================== */

@media (max-width: 480px) {
  .site-title {
    font-size: 1.6rem;
  }

  .song-title {
    font-size: 1.25rem;
  }

  .song-lyrics {
    font-size: 0.95rem;
  }
}