/* ============================================
   AudioRSS.com — Modern Theme
   Dark/Light mode via CSS custom properties
   ============================================ */

:root {
  --font-sans:
    -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue",
    Arial, sans-serif;
  --transition-speed: 0.2s;
  --radius: 0.75rem;
  --radius-sm: 0.5rem;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.08), 0 4px 12px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 4px 24px rgba(0, 0, 0, 0.12);
}

/* Light theme */
[data-bs-theme="light"] {
  --bg-body: #f5f7fa;
  --bg-surface: #ffffff;
  --bg-surface-hover: #f8f9fb;
  --bg-nav: #ffffff;
  --bg-nav-border: #e8ecf1;
  --bg-input: #ffffff;
  --bg-code: #f0f2f5;
  --text-primary: #1a1d23;
  --text-secondary: #5a6270;
  --text-muted: #8b929e;
  --text-link: #4f6ef7;
  --border-color: #e2e6ec;
  --border-light: #eef0f4;
  --accent: #4f6ef7;
  --accent-hover: #3b5ae0;
  --accent-subtle: rgba(79, 110, 247, 0.08);
  --danger: #e5484d;
  --danger-subtle: rgba(229, 72, 77, 0.08);
  --success: #30a46c;
  --success-subtle: rgba(48, 164, 108, 0.08);
  --warning: #e8930c;
  --warning-subtle: rgba(232, 147, 12, 0.08);
  --info: #0ea5e9;
  --info-subtle: rgba(14, 165, 233, 0.08);
  --table-header-bg: #f8f9fb;
  --table-stripe-bg: #fafbfc;
  --table-hover-bg: #f0f4ff;
  --badge-bg: #eef0f4;
  --badge-text: #5a6270;
  --footer-text: var(--text-muted);
}

/* Dark theme (default) */
[data-bs-theme="dark"] {
  --bg-body: #0f1117;
  --bg-surface: #1a1d27;
  --bg-surface-hover: #222531;
  --bg-nav: #161822;
  --bg-nav-border: #2a2d3a;
  --bg-input: #1e2130;
  --bg-code: #1e2130;
  --text-primary: #e4e6eb;
  --text-secondary: #9ba1b0;
  --text-muted: #6b7280;
  --text-link: #7b93f7;
  --border-color: #2a2d3a;
  --border-light: #222536;
  --accent: #5b7bf9;
  --accent-hover: #7b93f7;
  --accent-subtle: rgba(91, 123, 249, 0.12);
  --danger: #f87171;
  --danger-subtle: rgba(248, 113, 113, 0.12);
  --success: #4ade80;
  --success-subtle: rgba(74, 222, 128, 0.12);
  --warning: #fbbf24;
  --warning-subtle: rgba(251, 191, 36, 0.12);
  --info: #38bdf8;
  --info-subtle: rgba(56, 189, 248, 0.12);
  --table-header-bg: #1e2130;
  --table-stripe-bg: #161822;
  --table-hover-bg: rgba(91, 123, 249, 0.08);
  --badge-bg: #2a2d3a;
  --badge-text: #9ba1b0;
  --footer-text: var(--text-muted);
}

/* --- Base --- */
body {
  font-family: var(--font-sans);
  background-color: var(--bg-body);
  color: var(--text-primary);
  transition:
    background-color var(--transition-speed),
    color var(--transition-speed);
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--text-link);
  text-decoration: none;
  transition: color var(--transition-speed);
}
a:hover {
  color: var(--accent-hover);
}
a.nohover {
  text-decoration: none;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  color: var(--text-primary);
  font-weight: 700;
  letter-spacing: -0.01em;
}
h1 {
  font-size: 1.75rem;
  margin-bottom: 1.5rem;
}
h2 {
  font-size: 1.4rem;
  margin-bottom: 1rem;
}
h3 {
  font-size: 1.25rem;
}
p {
  color: var(--text-secondary);
  line-height: 1.65;
}

code {
  background: var(--bg-code);
  padding: 0.15em 0.4em;
  border-radius: 4px;
  font-size: 0.875em;
  color: var(--accent);
}

/* --- Navbar --- */
.navbar {
  background: var(--bg-nav) !important;
  border-bottom: 1px solid var(--bg-nav-border);
  padding: 0.6rem 1rem;
  margin-bottom: 2rem;
  transition:
    background-color var(--transition-speed),
    border-color var(--transition-speed);
}
.navbar-brand {
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--text-primary) !important;
  margin-left: 0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.navbar-brand:hover {
  color: var(--accent) !important;
}
.navbar-brand i {
  color: var(--accent);
}

.navbar-nav .nav-link {
  color: var(--text-secondary) !important;
  font-weight: 500;
  font-size: 0.9rem;
  padding: 0.5rem 0.85rem;
  border-radius: var(--radius-sm);
  transition: all var(--transition-speed);
}
.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
  color: var(--text-primary) !important;
  background: var(--accent-subtle);
}
.navbar-toggler {
  border: 1px solid var(--border-color);
  padding: 0.35rem 0.6rem;
}
[data-bs-theme="dark"] .navbar-toggler-icon {
  filter: invert(1);
}

/* Theme toggle */
#theme-toggle {
  background: var(--accent-subtle);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-speed);
  font-size: 1rem;
  padding: 0;
  margin-left: 0.5rem;
}
#theme-toggle:hover {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

/* --- Cards --- */
.card,
.ar-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition:
    background-color var(--transition-speed),
    border-color var(--transition-speed);
}
.card-header {
  background: transparent;
  border-bottom: 1px solid var(--border-color);
  padding: 1.25rem 1.5rem;
}
.card-header h4 {
  margin: 0;
  font-size: 1.1rem;
}
.card-body {
  padding: 1.5rem;
}

/* --- Tables --- */
.table {
  color: var(--text-primary);
  border-color: var(--border-light);
}
.table th {
  background: var(--table-header-bg) !important;
  color: var(--text-secondary) !important;
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border-bottom: 1px solid var(--border-color) !important;
  padding: 0.85rem 1rem;
}
.table td {
  color: var(--text-primary) !important;
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border-light);
  vertical-align: middle;
}
.table-striped > tbody > tr:nth-of-type(odd) > td {
  background-color: var(--table-stripe-bg);
}
.table-hover > tbody > tr:hover > td {
  background-color: var(--table-hover-bg);
}

/* DataTables overrides */
.dataTables_wrapper {
  color: var(--text-secondary);
}
.dataTables_length,
.dataTables_info {
  text-align: left;
  color: var(--text-secondary) !important;
  font-size: 0.875rem;
}
.dataTables_filter label,
.dataTables_length label {
  color: var(--text-secondary) !important;
}
.dataTables_filter input,
.dataTables_length select {
  background: var(--bg-input) !important;
  color: var(--text-primary) !important;
  border: 1px solid var(--border-color) !important;
  border-radius: var(--radius-sm);
  padding: 0.35rem 0.65rem;
}
.dataTables_paginate .paginate_button {
  color: var(--text-secondary) !important;
  border: 1px solid var(--border-color) !important;
  border-radius: var(--radius-sm) !important;
  background: var(--bg-surface) !important;
  margin: 0 2px;
}
.dataTables_paginate .paginate_button:hover {
  background: var(--accent-subtle) !important;
  color: var(--accent) !important;
  border-color: var(--accent) !important;
}
.dataTables_paginate .paginate_button.current {
  background: var(--accent) !important;
  color: #fff !important;
  border-color: var(--accent) !important;
}
.dataTables_paginate .paginate_button.disabled {
  opacity: 0.4;
}
div.dataTables_wrapper div.dataTables_info {
  color: var(--text-muted) !important;
}

/* --- Buttons --- */
.btn {
  font-weight: 600;
  font-size: 0.875rem;
  border-radius: var(--radius-sm);
  padding: 0.5rem 1rem;
  transition: all var(--transition-speed);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  border: none;
}
.btn b {
  font-weight: 600;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover {
  background: var(--accent-hover);
  color: #fff;
}
.btn-danger {
  background: var(--danger-subtle);
  color: var(--danger);
}
.btn-danger:hover {
  background: var(--danger);
  color: #fff;
}
.btn-warning {
  background: var(--warning-subtle);
  color: var(--warning);
}
.btn-warning:hover {
  background: var(--warning);
  color: #fff;
}
.btn-success {
  background: var(--success-subtle);
  color: var(--success);
}
.btn-success:hover {
  background: var(--success);
  color: #fff;
}
.btn-info {
  background: var(--info-subtle);
  color: var(--info);
}
.btn-info:hover {
  background: var(--info);
  color: #fff;
}
.btn-secondary {
  background: var(--badge-bg);
  color: var(--text-secondary);
}
.btn-secondary:hover {
  background: var(--border-color);
  color: var(--text-primary);
}
td .btn {
  font-size: 0.8rem;
  padding: 0.35rem 0.75rem;
}

/* --- Forms --- */
.form-control,
.form-select {
  background: var(--bg-input);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.6rem 0.85rem;
  font-size: 0.9rem;
  transition:
    border-color var(--transition-speed),
    box-shadow var(--transition-speed);
}
.form-control:focus,
.form-select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-subtle);
  background: var(--bg-input);
  color: var(--text-primary);
}
.form-control::placeholder {
  color: var(--text-muted);
}
label,
.form-label,
.form-check-label {
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.875rem;
  margin-bottom: 0.35rem;
}
.form-check-input {
  background-color: var(--bg-input);
  border-color: var(--border-color);
}
.form-check-input:checked {
  background-color: var(--accent);
  border-color: var(--accent);
}

/* Auth form card */
.auth-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  padding: 2.5rem;
  max-width: 440px;
  margin: 2rem auto;
  text-align: left;
}
.auth-card h1 {
  font-size: 1.5rem;
  text-align: center;
  margin-bottom: 1.5rem;
}
.auth-card .btn {
  width: 100%;
  justify-content: center;
  padding: 0.65rem;
  font-size: 0.95rem;
  margin-top: 0.5rem;
}
.auth-card .form-group,
.auth-card .fs-div {
  margin-bottom: 1rem;
}
.auth-card ul {
  list-style-type: none;
  padding-left: 0;
}
.auth-card ul li {
  color: var(--danger);
  font-size: 0.85rem;
}
.auth-links {
  text-align: center;
  margin-top: 1.25rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}
.auth-links a {
  color: var(--text-link);
  font-weight: 500;
}
.auth-links a:hover {
  color: var(--accent-hover);
}

/* Add/Edit form card */
.form-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 2rem;
  max-width: 600px;
  margin: 0 auto;
  text-align: left;
}
.form-card h1 {
  text-align: center;
  margin-bottom: 1.5rem;
}
.form-card .form-group {
  margin-bottom: 1.25rem;
}
.form-card .btn-primary {
  width: 100%;
  justify-content: center;
  padding: 0.65rem;
  font-size: 0.95rem;
}

/* --- Table card wrapper --- */
.table-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.5rem;
  overflow-x: auto;
}

/* --- Page header row --- */
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.page-header h1 {
  margin: 0;
}

/* --- Badges --- */
.badge {
  font-weight: 600;
  font-size: 0.75rem;
  padding: 0.3em 0.65em;
  border-radius: 2rem;
}
.badge.bg-success {
  background: var(--success) !important;
}
.badge.bg-danger {
  background: var(--danger) !important;
}
.badge.bg-info {
  background: var(--info) !important;
}
.badge.bg-secondary {
  background: var(--badge-bg) !important;
  color: var(--badge-text) !important;
}

/* --- Alerts --- */
.alert {
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  font-size: 0.9rem;
}

/* --- Landing page --- */
.landing-hero {
  padding: 4rem 0 3rem;
  text-align: center;
  position: relative;
}
.landing-hero::before {
  content: "";
  position: absolute;
  top: -60px;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--accent-subtle) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}
.landing-hero > * {
  position: relative;
  z-index: 1;
}
.landing-hero h1 {
  font-size: 3rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
  line-height: 1.15;
}
.landing-hero h1 .text-gradient {
  background: linear-gradient(135deg, var(--accent), #a855f7);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.landing-hero p.lead {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 640px;
  margin: 0 auto 2.5rem;
  line-height: 1.7;
}
.landing-hero .btn {
  padding: 0.75rem 1.75rem;
  font-size: 1rem;
}
.btn-outline-primary {
  border: 2px solid var(--accent);
  color: var(--accent);
  background: transparent;
}
.btn-outline-primary:hover {
  background: var(--accent);
  color: #fff;
}

/* Stats banner */
.stats-banner {
  display: flex;
  justify-content: center;
  gap: 3rem;
  flex-wrap: wrap;
  padding: 2rem 0;
  margin: 0 0 2rem;
  text-align: center;
}
.stat-item .stat-number {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1;
}
.stat-item .stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.35rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* Section titles */
.section-title {
  text-align: center;
  margin-bottom: 2.5rem;
}
.section-title h2 {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}
.section-title p {
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto;
  font-size: 1rem;
}
.section-divider {
  border: none;
  border-top: 1px solid var(--border-light);
  margin: 3rem 0;
}

/* Feature grid */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  text-align: left;
  margin: 0 0 2rem;
}
.feature-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 1.75rem;
  transition: all var(--transition-speed);
}
.feature-card:hover {
  box-shadow: var(--shadow-lg);
  border-color: var(--accent);
  transform: translateY(-2px);
}
.feature-card h4 {
  font-size: 1.05rem;
  margin-bottom: 0.5rem;
}
.feature-card p {
  font-size: 0.9rem;
  margin: 0;
  color: var(--text-secondary);
}
.feature-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  margin-bottom: 0.85rem;
}

/* How it works steps */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2rem;
  text-align: center;
  margin: 0 0 2rem;
  counter-reset: step-counter;
}
.step-card {
  position: relative;
  padding: 1.5rem;
}
.step-number {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  font-weight: 800;
  margin: 0 auto 1rem;
  box-shadow: 0 4px 12px rgba(79, 110, 247, 0.25);
}
.step-card h4 {
  font-size: 1rem;
  margin-bottom: 0.5rem;
}
.step-card p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin: 0;
}

/* Platform logos / compatible-with */
.platform-grid {
  display: flex;
  justify-content: center;
  gap: 2.5rem;
  flex-wrap: wrap;
  padding: 1.5rem 0;
  margin: 0 0 1rem;
}
.platform-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-muted);
  font-size: 0.8rem;
  font-weight: 600;
  transition: color var(--transition-speed);
}
.platform-item i {
  font-size: 2rem;
}
.platform-item:hover {
  color: var(--accent);
}

/* Testimonial / quote */
.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin: 0 0 2rem;
}
.testimonial-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 1.75rem;
  text-align: left;
}
.testimonial-card .quote {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 1rem;
  font-style: italic;
}
.testimonial-card .author {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
}
.testimonial-card .author span {
  color: var(--text-muted);
  font-weight: 400;
}

/* FAQ */
.faq-grid {
  max-width: 720px;
  margin: 0 auto 2rem;
  text-align: left;
}
.faq-item {
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-light);
}
.faq-item:last-child {
  border-bottom: none;
  margin-bottom: 0;
}
.faq-item h4 {
  font-size: 1rem;
  margin-bottom: 0.35rem;
}
.faq-item p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin: 0;
}

/* CTA section */
.cta-section {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 3.5rem 2rem;
  text-align: center;
  margin: 2rem 0;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, var(--accent-subtle) 0%, transparent 70%);
  pointer-events: none;
}
.cta-section > * {
  position: relative;
}
.cta-section h2 {
  font-size: 1.75rem;
  font-weight: 800;
  margin-bottom: 0.75rem;
}
.cta-section p {
  max-width: 520px;
  margin: 0 auto 1.5rem;
  font-size: 1rem;
}
.cta-section .btn {
  padding: 0.75rem 2rem;
  font-size: 1rem;
}

/* Use case cards */
.usecase-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin: 0 0 2rem;
}
.usecase-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 1.75rem;
  text-align: left;
  transition: all var(--transition-speed);
}
.usecase-card:hover {
  box-shadow: var(--shadow-lg);
}
.usecase-card h4 {
  font-size: 1.05rem;
  margin-bottom: 0.5rem;
}
.usecase-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin: 0;
}
.usecase-icon {
  font-size: 2rem;
  margin-bottom: 0.85rem;
  color: var(--accent);
}

@media (max-width: 768px) {
  .landing-hero h1 {
    font-size: 2rem;
  }
  .stats-banner {
    gap: 1.5rem;
  }
  .stat-item .stat-number {
    font-size: 1.75rem;
  }
  .platform-grid {
    gap: 1.5rem;
  }
}

/* --- Docs / Tutorial --- */
.docs-content {
  text-align: left;
  max-width: 800px;
  margin: 0 auto;
}
.docs-content ol {
  padding-left: 1.5rem;
}
.docs-content ol li {
  margin-bottom: 1.25rem;
}
.docs-content ul li {
  margin-bottom: 0.5rem;
}
.docs-content blockquote {
  border-left: 3px solid var(--accent);
  padding-left: 1.25rem;
  margin: 1rem 0;
}
.docs-content img {
  max-width: 100%;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  margin: 0.75rem 0;
}
.docs-content h2 {
  margin-top: 2rem;
}

/* --- Toast notifications (clipboard copy) --- */
.toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 9999;
}
.toast-msg {
  background: var(--success);
  color: #fff;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 600;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  transition: opacity 0.3s;
}
.toast-msg.show {
  opacity: 1;
}

/* --- Footer --- */
footer.page-footer {
  margin-top: 3rem;
  padding: 1.5rem 0;
  color: var(--footer-text);
  font-size: 0.8rem;
  border-top: 1px solid var(--border-light);
  text-align: center;
}
footer a {
  color: var(--text-muted);
}
footer a:hover {
  color: var(--accent);
}

/* --- Dark theme Bootstrap overrides --- */
[data-bs-theme="dark"] .table-dark {
  --bs-table-bg: var(--bg-surface);
  --bs-table-border-color: var(--border-color);
}
[data-bs-theme="dark"] .bg-dark {
  background-color: var(--bg-surface) !important;
}
[data-bs-theme="dark"] .text-white {
  color: var(--text-primary) !important;
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .page-header {
    flex-direction: column;
    align-items: stretch;
    text-align: center;
  }
  h1 {
    font-size: 1.4rem;
  }
  .landing-hero h1 {
    font-size: 1.75rem;
  }
  .auth-card {
    margin: 1rem;
    padding: 1.75rem;
  }
  .form-card {
    margin: 0 1rem;
    padding: 1.5rem;
  }
  td .btn {
    font-size: 0.75rem;
    padding: 0.3rem 0.5rem;
  }
}