/* =========================================================
   RIVA MUSIC BOX - Mobile Jukebox Remote Controller
   Style: Ultra-clean Dark Modern Music Application
   ========================================================= */

:root {
  --app-bg: #090a0e;
  --card-bg: #12141a;
  --card-border: rgba(255, 255, 255, 0.08);
  --card-hover: #191c24;
  
  --brand-red: #e50914;
  --brand-red-bright: #ff1e38;
  
  --text-primary: #ffffff;
  --text-secondary: #8e93a6;
  --text-muted: #53586b;
  
  --font-main: 'Archivo', sans-serif;
  --font-tech: 'Space Grotesk', sans-serif;
  --font-mono: 'Space Mono', monospace;
  
  --radius-lg: 16px;
  --radius-md: 10px;
  --radius-sm: 6px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

body {
  background-color: var(--app-bg);
  color: var(--text-primary);
  font-family: var(--font-main);
  min-height: 100vh;
  display: flex;
  justify-content: center;
}

.app-viewport {
  width: 100%;
  max-width: 480px;
  min-height: 100vh;
  padding: 16px 16px 40px 16px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* =========================================================
   NAVBAR
   ========================================================= */
.app-navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 0;
}

.navbar-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-logo {
  height: 38px;
  width: auto;
  object-fit: contain;
}

.nav-brand {
  display: flex;
  flex-direction: column;
}

.nav-brand-title {
  font-family: var(--font-main);
  font-size: 16px;
  font-weight: 900;
  letter-spacing: 1px;
  color: #ffffff;
  text-transform: uppercase;
}

.nav-brand-subtitle {
  font-family: var(--font-tech);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1.5px;
  color: var(--text-muted);
  text-transform: uppercase;
}

.nav-status {
  display: flex;
  align-items: center;
  gap: 6px;
  background-color: #161820;
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 5px 10px;
  border-radius: 4px;
}

.status-live-dot {
  width: 6px;
  height: 6px;
  background-color: var(--brand-red);
  border-radius: 50%;
  animation: livePulse 1.5s infinite;
}

.status-live-text {
  font-family: var(--font-tech);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 1px;
  color: #ffffff;
}

/* =========================================================
   IDENTITY BAR
   ========================================================= */
.identity-bar {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  padding: 10px 14px;
}

.identity-input-box {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.identity-input-box label {
  font-family: var(--font-tech);
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 1.5px;
  color: var(--text-muted);
}

.identity-input-box input {
  background: transparent;
  border: none;
  outline: none;
  color: #ffffff;
  font-family: var(--font-main);
  font-size: 14px;
  font-weight: 700;
}

.identity-input-box input::placeholder {
  color: var(--text-muted);
  font-weight: 400;
}

/* =========================================================
   SEARCH & FILTERS
   ========================================================= */
.search-container {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.search-input-field {
  position: relative;
  display: flex;
  align-items: center;
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  padding: 0 14px;
  height: 48px;
}

.search-input-field:focus-within {
  border-color: rgba(255, 255, 255, 0.3);
}

.search-glyph {
  width: 18px;
  height: 18px;
  color: var(--text-muted);
  margin-right: 10px;
}

#search-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: #ffffff;
  font-family: var(--font-main);
  font-size: 14px;
  font-weight: 600;
}

#search-input::placeholder {
  color: var(--text-muted);
  font-weight: 400;
}

.search-reset {
  background: rgba(255, 255, 255, 0.1);
  border: none;
  color: var(--text-secondary);
  width: 22px;
  height: 22px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
}

.search-reset.hidden {
  display: none;
}

.category-filters-track {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  scrollbar-width: none;
  padding-bottom: 2px;
}

.category-filters-track::-webkit-scrollbar {
  display: none;
}

.filter-pill {
  flex-shrink: 0;
  background-color: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--text-secondary);
  padding: 6px 14px;
  border-radius: 4px;
  font-family: var(--font-tech);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1px;
  cursor: pointer;
}

.filter-pill.active {
  background-color: var(--brand-red);
  color: #ffffff;
  border-color: var(--brand-red-bright);
}

/* =========================================================
   CATALOG LIST
   ========================================================= */
.catalog-section {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.catalog-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.catalog-title {
  font-family: var(--font-tech);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 1.5px;
  color: var(--text-secondary);
  text-transform: uppercase;
}

.catalog-count {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-muted);
  font-weight: 700;
}

.catalog-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.song-item-row {
  display: flex;
  align-items: center;
  gap: 12px;
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  padding: 10px 12px;
  cursor: pointer;
  transition: background-color 0.15s ease;
}

.song-item-row:active {
  background-color: var(--card-hover);
}

.song-cover-thumb {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  object-fit: cover;
  flex-shrink: 0;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background-color: #000;
}

.song-text-meta {
  flex: 1;
  min-width: 0;
}

.song-main-title {
  font-family: var(--font-main);
  font-size: 14px;
  font-weight: 700;
  color: #ffffff;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  text-transform: uppercase;
}

.song-sub-artist {
  font-family: var(--font-tech);
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-top: 2px;
  text-transform: uppercase;
}

.song-action-btn {
  background-color: var(--brand-red);
  color: #ffffff;
  border: none;
  padding: 8px 14px;
  border-radius: 6px;
  font-family: var(--font-tech);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 1px;
  cursor: pointer;
  flex-shrink: 0;
}

.song-action-btn:active {
  background-color: var(--brand-red-bright);
}

/* =========================================================
   CONFIRMATION MODAL
   ========================================================= */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.88);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 1000;
}

.modal-overlay.hidden {
  display: none;
}

.modal-dialog {
  background-color: #12141c;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-lg);
  padding: 24px 20px;
  width: 100%;
  max-width: 380px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.9);
}

.modal-badge {
  font-family: var(--font-tech);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 2px;
  color: var(--brand-red-bright);
  background: rgba(229, 9, 20, 0.15);
  padding: 4px 12px;
  border-radius: 4px;
}

.modal-heading {
  font-family: var(--font-main);
  font-size: 20px;
  font-weight: 900;
  letter-spacing: 0.5px;
  color: #ffffff;
  text-transform: uppercase;
}

.modal-subheading {
  font-family: var(--font-tech);
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.5;
}

.modal-subheading strong {
  color: #ffffff;
}

.modal-preview-card {
  width: 100%;
  background-color: #181a24;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  padding: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
  text-align: left;
}

.modal-action-btn {
  width: 100%;
  background-color: var(--brand-red);
  color: #ffffff;
  border: none;
  padding: 12px;
  border-radius: var(--radius-md);
  font-family: var(--font-tech);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 1.5px;
  cursor: pointer;
  margin-top: 6px;
}

@keyframes livePulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}