/* ============================================================
   MusicBot – Dark Modern Web UI
   ============================================================ */

/* ---------- Custom Properties ---------- */
:root {
  --bg: #0b0e14;
  --panel: #121722;
  --card: rgba(18, 23, 34, 0.75);
  --border: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(255, 255, 255, 0.16);
  --text: #f0f3f8;
  --muted: #8b93a3;
  --cyan: #00d2ff;
  --purple: #7928ca;
  --ok: #35c46a;
  --warn: #ffb020;
  --err: #ff5252;
  --radius: 12px;
  --font: -apple-system, "Segoe UI", Roboto, "Inter", "Helvetica Neue", sans-serif;
}

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

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.5;
  min-height: 100vh;
}

/* Subtle radial glow behind the page */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 40% at 50% 0%, rgba(0, 210, 255, 0.06) 0%, transparent 70%),
    radial-gradient(ellipse 50% 35% at 80% 100%, rgba(121, 40, 202, 0.04) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

/* ============================================================
   Layout
   ============================================================ */
header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 24px;
  background: rgba(18, 23, 34, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

header h1 {
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.3px;
  background: linear-gradient(135deg, var(--cyan), var(--purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

#role-badge {
  margin-left: auto;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.3px;
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--muted);
}

main {
  max-width: 960px;
  margin: 0 auto;
  padding: 24px 20px 60px;
  position: relative;
  z-index: 1;
}

/* ============================================================
   Tabs / Navigation
   ============================================================ */
.tabs {
  display: flex;
  gap: 8px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 20px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.tabs::-webkit-scrollbar {
  display: none;
}

.tab-btn {
  all: unset;
  cursor: pointer;
  padding: 10px 18px;
  border-radius: var(--radius) var(--radius) 0 0;
  color: var(--muted);
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
  transition: color 0.2s, background 0.2s;
  position: relative;
}

.tab-btn:hover {
  color: var(--text);
}

.tab-btn.active {
  color: var(--text);
  background: var(--bg);
}

.tab-btn.active::after {
  content: "";
  position: absolute;
  bottom: -1px;
  left: 12px;
  right: 12px;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--purple));
  border-radius: 2px;
}

/* Legacy nav button support (index.html uses <nav>) */
nav {
  display: flex;
  gap: 4px;
  padding: 10px 24px 0;
  background: rgba(18, 23, 34, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  flex-wrap: wrap;
  overflow-x: auto;
}

nav button {
  all: unset;
  cursor: pointer;
  padding: 8px 14px;
  border-radius: 8px 8px 0 0;
  color: var(--muted);
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
  transition: color 0.2s, background 0.2s;
  position: relative;
}

nav button:hover {
  color: var(--text);
}

nav button.active {
  color: var(--text);
  background: var(--bg);
}

nav button.active::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 10%;
  right: 10%;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--purple));
  border-radius: 2px;
}

/* ============================================================
   Section views
   ============================================================ */
section.view {
  display: none;
}

section.view.active {
  display: block;
}

/* ============================================================
   Cards – Glassmorphism
   ============================================================ */
.card {
  background: var(--card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  margin-bottom: 16px;
  transition: border-color 0.25s, box-shadow 0.25s;
}

.card:hover {
  border-color: var(--border-hover);
}

/* ============================================================
   HUD Grid
   ============================================================ */
.hud-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 14px;
  margin-bottom: 20px;
}

.hud-grid .card {
  margin-bottom: 0;
}

/* ============================================================
   Pulsing Status Dots
   ============================================================ */
.dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--err);
  flex-shrink: 0;
  transition: background 0.3s, box-shadow 0.3s;
}

.dot.ok {
  background: var(--ok);
  box-shadow: 0 0 10px var(--ok);
  animation: pulse 2s infinite;
}

.dot.warn {
  background: var(--warn);
  box-shadow: 0 0 10px var(--warn);
  animation: pulse 1.5s infinite;
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
    box-shadow: 0 0 10px currentColor;
  }
  50% {
    opacity: 0.55;
    box-shadow: 0 0 4px currentColor;
  }
}

/* ============================================================
   Headings
   ============================================================ */
h2 {
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.6px;
}

h3 {
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text);
}

/* ============================================================
   Buttons
   ============================================================ */
.btn,
button.btn {
  all: unset;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 9px 18px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  color: #fff;
  background: linear-gradient(135deg, var(--cyan), var(--purple));
  transition: filter 0.2s, transform 0.15s, opacity 0.2s;
  user-select: none;
  white-space: nowrap;
}

.btn:hover {
  filter: brightness(1.15);
}

.btn:active {
  transform: scale(0.97);
}

.btn:disabled {
  opacity: 0.4;
  cursor: default;
  pointer-events: none;
}

.btn-primary {
  all: unset;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 9px 18px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  color: #fff;
  background: linear-gradient(135deg, var(--cyan), var(--purple));
  transition: filter 0.2s, transform 0.15s, opacity 0.2s;
  user-select: none;
}

.btn-primary:hover {
  filter: brightness(1.15);
}

.btn-primary:active {
  transform: scale(0.97);
}

.btn-secondary {
  all: unset;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 9px 18px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  background: var(--border);
  border: 1px solid var(--border);
  transition: border-color 0.2s, filter 0.2s, transform 0.15s;
  user-select: none;
}

.btn-secondary:hover {
  border-color: var(--border-hover);
  filter: brightness(1.2);
}

.btn-secondary:active {
  transform: scale(0.97);
}

.btn-danger {
  all: unset;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 9px 18px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  color: #fff;
  background: var(--err);
  transition: filter 0.2s, transform 0.15s, opacity 0.2s;
  user-select: none;
}

.btn-danger:hover {
  filter: brightness(1.15);
}

.btn-danger:active {
  transform: scale(0.97);
}

.btn-sm,
.btn.small {
  padding: 5px 11px;
  font-size: 12px;
  border-radius: 6px;
}

/* ============================================================
   Form Controls
   ============================================================ */
input[type="text"],
input[type="search"],
textarea {
  flex: 1;
  min-width: 200px;
  background: rgba(11, 14, 20, 0.6);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 9px 12px;
  font-size: 13px;
  font-family: var(--font);
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

input[type="text"]:focus,
input[type="search"]:focus,
textarea:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 0 2px rgba(0, 210, 255, 0.12);
}

input[type="text"]::placeholder,
input[type="search"]::placeholder,
textarea::placeholder {
  color: var(--muted);
  opacity: 0.6;
}

textarea {
  resize: vertical;
  min-height: 60px;
}

select {
  background: rgba(11, 14, 20, 0.6);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 13px;
  font-family: var(--font);
  outline: none;
  cursor: pointer;
  transition: border-color 0.2s;
}

select:focus {
  border-color: var(--cyan);
}

input[type="range"] {
  flex: 1;
  accent-color: var(--cyan);
  height: 4px;
  cursor: pointer;
}

/* ============================================================
   Row layout
   ============================================================ */
.row {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}

/* ============================================================
   Toggle Switch
   ============================================================ */
.switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
  flex-shrink: 0;
}

.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.switch .slider {
  position: absolute;
  cursor: pointer;
  inset: 0;
  background: var(--border);
  border-radius: 24px;
  transition: background 0.3s;
}

.switch .slider::before {
  content: "";
  position: absolute;
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background: var(--text);
  border-radius: 50%;
  transition: transform 0.3s;
}

.switch input:checked + .slider {
  background: linear-gradient(135deg, var(--cyan), var(--purple));
}

.switch input:checked + .slider::before {
  transform: translateX(20px);
}

/* ============================================================
   Tables
   ============================================================ */
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

th,
td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
}

th {
  color: var(--muted);
  font-weight: 600;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

td.actions {
  text-align: right;
  white-space: nowrap;
}

td.actions button {
  margin-left: 4px;
}

/* ============================================================
   Badges
   ============================================================ */
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.3px;
  background: var(--border);
  color: var(--muted);
  vertical-align: middle;
}

.badge.live {
  background: rgba(255, 82, 82, 0.15);
  color: var(--err);
}

.badge.admin-only {
  background: rgba(121, 40, 202, 0.18);
  color: var(--purple);
}

/* ============================================================
   Now Playing
   ============================================================ */
.np-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 4px;
  line-height: 1.3;
}

.np-meta {
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 2px;
}

.controls {
  display: flex;
  gap: 8px;
  margin-top: 14px;
  flex-wrap: wrap;
}

.vol {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 14px;
}

#vol-label {
  width: 40px;
  text-align: right;
  color: var(--muted);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
}

/* ============================================================
   Modal Dialog
   ============================================================ */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s, visibility 0.25s;
}

.modal-overlay.open {
  opacity: 1;
  visibility: visible;
}

.modal-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  width: 90%;
  max-width: 480px;
  max-height: 80vh;
  overflow-y: auto;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.5);
  transform: translateY(12px) scale(0.97);
  transition: transform 0.25s;
}

.modal-overlay.open .modal-card {
  transform: translateY(0) scale(1);
}

.modal-card h2 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  text-transform: none;
  letter-spacing: 0;
  margin-bottom: 14px;
}

/* ============================================================
   Toast Notifications
   ============================================================ */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  background: var(--panel);
  border: 1px solid var(--border);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: var(--text);
  padding: 10px 20px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 500;
  opacity: 0;
  pointer-events: none;
  z-index: 300;
  transition: opacity 0.3s, transform 0.3s;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ============================================================
   Muted text utility
   ============================================================ */
.muted {
  color: var(--muted);
}

/* ============================================================
   Responsive – Mobile
   ============================================================ */
@media (max-width: 640px) {
  header {
    padding: 12px 16px;
  }

  nav {
    padding: 8px 12px 0;
    gap: 2px;
  }

  nav button {
    padding: 7px 10px;
    font-size: 12px;
  }

  main {
    padding: 16px 12px 48px;
  }

  .card {
    padding: 14px;
    margin-bottom: 12px;
  }

  .hud-grid {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .controls {
    gap: 6px;
  }

  .btn,
  .btn-primary,
  .btn-secondary,
  .btn-danger {
    padding: 8px 14px;
    font-size: 12px;
  }

  .btn-sm,
  .btn.small {
    padding: 4px 9px;
    font-size: 11px;
  }

  table {
    font-size: 12px;
  }

  th,
  td {
    padding: 7px 8px;
  }

  .np-title {
    font-size: 15px;
  }

  .row {
    gap: 6px;
  }

  input[type="text"],
  input[type="search"],
  textarea,
  select {
    min-width: 0;
    font-size: 13px;
  }

  .toast {
    bottom: 16px;
    padding: 8px 16px;
    font-size: 12px;
    max-width: calc(100vw - 32px);
  }

  .modal-card {
    width: 95%;
    padding: 18px;
  }
}

/* ============================================================
   Responsive – Tablet
   ============================================================ */
@media (min-width: 641px) and (max-width: 900px) {
  main {
    max-width: 100%;
    padding: 20px 16px 48px;
  }
}

/* ============================================================
   Scrollbar styling
   ============================================================ */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--border-hover);
}

/* ============================================================
   Focus visible (accessibility)
   ============================================================ */
:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

/* Remove outline for mouse users */
:focus:not(:focus-visible) {
  outline: none;
}

/* ============================================================
   Selection
   ============================================================ */
::selection {
  background: rgba(0, 210, 255, 0.25);
  color: var(--text);
}