:root {
  --bg: #f3f5f7;
  --surface: #ffffff;
  --surface-soft: #f8fafb;
  --text: #111827;
  --muted: #5f6b7a;
  --brand: #0f766e;
  --brand-strong: #115e59;
  --danger: #b42318;
  --ring: rgba(15, 118, 110, 0.18);
  --border: #d9e1e7;
  --shadow-md: 0 14px 35px rgba(16, 24, 40, 0.08);
  --shadow-sm: 0 8px 18px rgba(16, 24, 40, 0.06);
  --radius-lg: 18px;
  --radius-md: 12px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 15% 0%, #d7f6f2 0%, transparent 45%),
    radial-gradient(circle at 85% 18%, #f4f8d5 0%, transparent 40%),
    var(--bg);
  font-family: "Manrope", "Segoe UI", sans-serif;
}

.app-shell {
  min-height: 100vh;
}

.page-container {
  max-width: 1680px;
  margin: 0 auto;
  padding-left: 20px;
  padding-right: 20px;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  backdrop-filter: blur(8px);
  background: rgba(255, 255, 255, 0.86);
  border-bottom: 1px solid var(--border);
}

.brand-link {
  font-family: "Sora", "Segoe UI", sans-serif;
  font-weight: 700;
  letter-spacing: 0.3px;
  color: #0f172a;
  text-decoration: none;
}

.brand-logo {
  display: block;
  height: 34px;
  width: auto;
}

.page-wrap {
  padding: 28px 0 44px;
}

.hero-title {
  font-family: "Sora", "Segoe UI", sans-serif;
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 6px;
}

.hero-subtitle {
  color: var(--muted);
  margin-bottom: 0;
}

.surface-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.section-title {
  font-family: "Sora", "Segoe UI", sans-serif;
  font-size: 1.08rem;
  font-weight: 600;
  margin: 0;
}

.form-control,
.form-select {
  border-color: var(--border);
  border-radius: 10px;
  min-height: 44px;
}

.form-control:focus,
.form-select:focus {
  border-color: var(--brand);
  box-shadow: 0 0 0 4px var(--ring);
}

.btn {
  border-radius: 10px;
  min-height: 42px;
  font-weight: 600;
}

.btn-primary {
  background: var(--brand);
  border-color: var(--brand);
}

.btn-primary:hover,
.btn-primary:focus {
  background: var(--brand-strong);
  border-color: var(--brand-strong);
}

.btn-outline-primary {
  color: var(--brand);
  border-color: #95d5cf;
}

.btn-outline-primary:hover,
.btn-outline-primary:focus {
  color: #ffffff;
  background: var(--brand);
  border-color: var(--brand);
}

.preview-shell {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: #ffffff;
  padding: 8px;
  box-shadow: var(--shadow-md);
}

#preview {
  width: 100%;
  border-radius: 10px;
  min-height: 360px;
  max-height: 620px;
  background: #ffffff;
}

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

.status-banner {
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 0.92rem;
  border: 1px solid transparent;
}

.status-success {
  color: #0f5132;
  background: #d1e7dd;
  border-color: #badbcc;
}

.status-error {
  color: #842029;
  background: #f8d7da;
  border-color: #f5c2c7;
}

.status-info {
  color: #055160;
  background: #cff4fc;
  border-color: #b6effb;
}

.table-wrap {
  overflow: hidden;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
}

.table {
  margin-bottom: 0;
}

.table thead th {
  background: var(--surface-soft);
  font-size: 0.85rem;
  letter-spacing: 0.2px;
  text-transform: uppercase;
  color: #445263;
}

.table td,
.table th {
  vertical-align: middle;
}

.library-player-panel {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface-soft);
  padding: 12px;
}

.library-player {
  width: 100%;
  max-height: 420px;
  border-radius: 10px;
  background: #111827;
}

.custom-modal {
  position: fixed;
  inset: 0;
  z-index: 1050;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.custom-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.5);
}

.custom-modal-dialog {
  position: relative;
  width: min(440px, 100%);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: var(--shadow-md);
  padding: 18px;
}

.custom-modal-title {
  font-family: "Sora", "Segoe UI", sans-serif;
  font-size: 1.1rem;
  margin: 0 0 6px;
}

.custom-modal-message {
  margin: 0;
  color: var(--muted);
}

.custom-modal-actions {
  margin-top: 16px;
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

.table-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.pagination-row {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  border-top: 1px solid var(--border);
  background: var(--surface-soft);
}

.pagination-info {
  min-width: 90px;
  text-align: center;
  color: var(--muted);
  font-size: 0.9rem;
}

.login-page {
  min-height: calc(100vh - 100px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px 0;
}

.login-card {
  width: 100%;
  max-width: 460px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  box-shadow: var(--shadow-md);
  padding: 28px;
}

.login-card h2 {
  font-family: "Sora", "Segoe UI", sans-serif;
  margin-bottom: 6px;
}

.login-muted {
  color: var(--muted);
  margin-bottom: 20px;
}

@media (max-width: 767px) {
  .page-wrap {
    padding-top: 20px;
  }

  .page-container {
    padding-left: 12px;
    padding-right: 12px;
  }

  .hero-title {
    font-size: 1.5rem;
  }

  #preview {
    min-height: 240px;
  }
}