/* ==========================================================================
   AI AudioBook Creator — "Dark Studio" Theme
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;0,9..40,700;1,9..40,400&family=DM+Serif+Display:ital@0;1&display=swap');

/* ==========================================================================
   Override Bootstrap CSS variables at root
   ========================================================================== */

:root,
[data-bs-theme="dark"] {
    --bs-body-bg: #121417;
    --bs-body-color: #e8e4df;
    --bs-secondary-bg: #22262d;
    --bs-tertiary-bg: #1a1d22;
    --bs-emphasis-color: #e8e4df;
    --bs-border-color: rgba(255, 255, 255, 0.1);
    --bs-card-bg: #1a1d22;

    /* Our custom tokens */
    --bg-deep: #121417;
    --bg-surface: #1a1d22;
    --bg-elevated: #22262d;
    --bg-hover: #2a2f38;
    --bg-input: #1e2128;

    --text-primary: #e8e4df;
    --text-secondary: #9e9a94;
    --text-tertiary: #6b6762;
    --text-inverse: #121417;

    --accent: #e2a84b;
    --accent-hover: #c9923a;
    --accent-glow: rgba(226, 168, 75, 0.15);
    --accent-subtle: rgba(226, 168, 75, 0.08);

    --success: #5cb88a;
    --success-soft: rgba(92, 184, 138, 0.12);
    --success-text: #7dd4a8;
    --warning: #d4953a;
    --warning-soft: rgba(212, 149, 58, 0.12);
    --warning-text: #e0aa5a;
    --info: #5b9bd5;
    --info-soft: rgba(91, 155, 213, 0.12);
    --info-text: #7db4e8;
    --danger: #d4574e;
    --danger-soft: rgba(212, 87, 78, 0.12);
    --danger-text: #e87c74;

    --border-subtle: rgba(255, 255, 255, 0.06);
    --border-default: rgba(255, 255, 255, 0.1);
    --border-strong: rgba(255, 255, 255, 0.16);

    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 20px;

    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.35);
    --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.45);
    --shadow-glow: 0 0 20px var(--accent-glow);
}

/* ==========================================================================
   Hard overrides for Bootstrap core elements
   ========================================================================== */

body {
    background-color: #121417 !important;
    color: #e8e4df !important;
    font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif !important;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    line-height: 1.6;
}

/* Noise texture */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    opacity: 0.02;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
    pointer-events: none;
    z-index: 9999;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'DM Serif Display', Georgia, serif !important;
    font-weight: 400 !important;
    color: #e8e4df !important;
    letter-spacing: -0.01em;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }

::selection {
    background: var(--accent);
    color: var(--text-inverse);
}

/* ==========================================================================
   Scrollbars
   ========================================================================== */

::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.12); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.2); }
* { scrollbar-width: thin; scrollbar-color: rgba(255,255,255,0.12) transparent; }

/* ==========================================================================
   Navbar — force dark
   ========================================================================== */

.navbar {
    background-color: #1a1d22 !important;
    border-bottom: 1px solid rgba(255,255,255,0.06) !important;
    padding: 0.75rem 0;
}

.navbar-brand {
    font-family: 'DM Serif Display', Georgia, serif !important;
    color: #e8e4df !important;
    font-size: 1.3rem;
    font-weight: 400;
    display: flex;
    align-items: center;
    gap: 0.6rem;
}
.navbar-brand i { color: var(--accent); }
.navbar-brand:hover { color: var(--accent) !important; }

/* ==========================================================================
   Cards — force dark backgrounds
   ========================================================================== */

.card {
    background-color: #1a1d22 !important;
    border: 1px solid rgba(255,255,255,0.06) !important;
    border-radius: var(--radius-lg) !important;
    box-shadow: var(--shadow-sm);
    color: #e8e4df !important;
}

.card:hover {
    transform: none;
    box-shadow: var(--shadow-sm);
}

.card-body {
    background-color: transparent !important;
    color: #e8e4df !important;
}

.card-title {
    font-family: 'DM Serif Display', Georgia, serif !important;
    color: #e8e4df !important;
}

/* Library book cards — amber glow on hover */
.card.h-100:hover {
    border-color: var(--accent) !important;
    box-shadow: var(--shadow-glow) !important;
}

/* ==========================================================================
   Buttons — force dark
   ========================================================================== */

.btn {
    font-family: 'DM Sans', sans-serif !important;
    font-weight: 500;
    border-radius: var(--radius-md);
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    transition: all 0.2s ease;
}

.btn-primary {
    background-color: var(--accent) !important;
    border-color: var(--accent) !important;
    color: #121417 !important;
    box-shadow: 0 2px 8px rgba(226, 168, 75, 0.25);
}
.btn-primary:hover {
    background-color: var(--accent-hover) !important;
    border-color: var(--accent-hover) !important;
    color: #121417 !important;
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(226, 168, 75, 0.3);
}
.btn-primary:active,
.btn-primary:focus {
    background-color: var(--accent-hover) !important;
    border-color: var(--accent-hover) !important;
    color: #121417 !important;
}

.btn-outline-primary {
    color: var(--accent) !important;
    border: 1px solid var(--accent) !important;
    background-color: transparent !important;
}
.btn-outline-primary:hover {
    background-color: var(--accent) !important;
    color: #121417 !important;
}

.btn-outline-success {
    color: var(--success-text) !important;
    border: 1px solid rgba(92,184,138,0.3) !important;
    background-color: transparent !important;
}
.btn-outline-success:hover {
    background-color: var(--success-soft) !important;
    color: var(--success-text) !important;
    border-color: var(--success) !important;
}

.btn-outline-secondary {
    color: var(--text-secondary) !important;
    border: 1px solid var(--border-default) !important;
    background-color: transparent !important;
}
.btn-outline-secondary:hover {
    background-color: var(--bg-hover) !important;
    color: var(--text-primary) !important;
}

.btn-light {
    background-color: #22262d !important;
    color: var(--text-secondary) !important;
    border: 1px solid rgba(255,255,255,0.06) !important;
}
.btn-light:hover {
    background-color: var(--bg-hover) !important;
    color: var(--text-primary) !important;
}

.btn-secondary {
    background-color: #22262d !important;
    color: var(--text-secondary) !important;
    border: 1px solid rgba(255,255,255,0.06) !important;
}

.btn-link {
    color: var(--accent) !important;
    border: none !important;
    background: none !important;
    padding: 0 !important;
}
.btn-link:hover { color: var(--accent-hover) !important; }

.btn-close {
    filter: invert(1) grayscale(100%) brightness(0.8) !important;
}

/* Button group */
.btn-group-sm > .btn {
    padding: 0.3rem 0.65rem;
    font-size: 0.8rem;
    border-radius: var(--radius-sm);
}

/* ==========================================================================
   Forms — force dark
   ========================================================================== */

.form-control,
.form-select {
    background-color: #1e2128 !important;
    border: 1px solid rgba(255,255,255,0.1) !important;
    border-radius: var(--radius-md) !important;
    padding: 0.6rem 0.85rem;
    font-size: 0.875rem;
    font-family: 'DM Sans', sans-serif !important;
    color: #e8e4df !important;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-control:focus,
.form-select:focus {
    background-color: #1e2128 !important;
    border-color: var(--accent) !important;
    color: #e8e4df !important;
    box-shadow: 0 0 0 3px var(--accent-glow) !important;
}

.form-control::placeholder {
    color: var(--text-tertiary) !important;
}

.form-select {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%239e9a94' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/%3e%3c/svg%3e") !important;
}

.form-select option {
    background-color: #1e2128;
    color: #e8e4df;
}

.form-select-sm {
    padding: 0.4rem 2rem 0.4rem 0.7rem;
    font-size: 0.8125rem;
}

.form-label {
    color: var(--text-secondary) !important;
    font-size: 0.75rem !important;
    font-weight: 600 !important;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 0.35rem;
}

.form-text {
    color: var(--text-tertiary) !important;
}

.form-check-input {
    background-color: #1e2128 !important;
    border: 1px solid rgba(255,255,255,0.16) !important;
}
.form-check-input:checked {
    background-color: var(--accent) !important;
    border-color: var(--accent) !important;
}
.form-check-input:focus {
    box-shadow: 0 0 0 3px var(--accent-glow) !important;
    border-color: var(--accent) !important;
}
.form-check-label {
    color: #e8e4df !important;
    font-size: 0.875rem;
}

/* ==========================================================================
   Badges — force dark
   ========================================================================== */

.badge {
    font-family: 'DM Sans', sans-serif !important;
    font-weight: 500 !important;
    font-size: 0.7rem;
    padding: 0.35em 0.65em;
    border-radius: var(--radius-sm) !important;
    letter-spacing: 0.02em;
}

.badge.bg-primary  { background-color: var(--accent-subtle) !important; color: var(--accent) !important; }
.badge.bg-secondary { background-color: #22262d !important; color: var(--text-secondary) !important; border: 1px solid rgba(255,255,255,0.06); }
.badge.bg-success  { background-color: var(--success-soft) !important; color: var(--success-text) !important; }
.badge.bg-warning  { background-color: var(--warning-soft) !important; color: var(--warning-text) !important; }
.badge.bg-info     { background-color: var(--info-soft) !important; color: var(--info-text) !important; }
.badge.bg-danger   { background-color: var(--danger-soft) !important; color: var(--danger-text) !important; }
.badge.bg-light    { background-color: #22262d !important; color: var(--text-secondary) !important; }
.badge.bg-white    { background-color: var(--bg-hover) !important; color: var(--text-tertiary) !important; }

/* ==========================================================================
   Alerts
   ========================================================================== */

.alert-danger,
.bg-danger-soft {
    background-color: var(--danger-soft) !important;
    color: var(--danger-text) !important;
    border: 1px solid rgba(212, 87, 78, 0.2) !important;
    border-radius: var(--radius-md) !important;
}

/* ==========================================================================
   Bootstrap utility overrides — force dark
   ========================================================================== */

.text-primary   { color: var(--accent) !important; }
.text-success   { color: var(--success-text) !important; }
.text-secondary { color: var(--text-secondary) !important; }
.text-muted     { color: var(--text-tertiary) !important; }
.text-dark      { color: #e8e4df !important; }
.text-light     { color: var(--text-secondary) !important; }

.bg-light {
    background-color: #22262d !important;
    color: #e8e4df !important;
}

.bg-white {
    background-color: #22262d !important;
}

.border        { border-color: rgba(255,255,255,0.06) !important; }
.border-top    { border-top-color: rgba(255,255,255,0.06) !important; }
.border-bottom { border-bottom-color: rgba(255,255,255,0.06) !important; }
.border-light  { border-color: rgba(255,255,255,0.06) !important; }

.shadow-sm     { box-shadow: var(--shadow-sm) !important; }

.rounded-pill  { border-radius: 100px !important; }
.rounded-3     { border-radius: var(--radius-md) !important; }
.rounded-circle { border-radius: 50% !important; }

.list-group-item {
    background-color: transparent !important;
    color: var(--text-secondary) !important;
    border: none !important;
}
.list-group-item:hover,
.list-group-item:focus {
    background-color: var(--bg-hover) !important;
    color: var(--text-primary) !important;
}

hr {
    border-color: rgba(255,255,255,0.06) !important;
    opacity: 1 !important;
}

/* ==========================================================================
   Index Page — Upload card top accent line
   ========================================================================== */

.row.justify-content-center.mt-5:first-child .card {
    position: relative;
    overflow: hidden;
}
.row.justify-content-center.mt-5:first-child .card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
    opacity: 0.6;
}

.opacity-25 { opacity: 0.08 !important; }

/* ==========================================================================
   Editor — Sidebar
   ========================================================================== */

.col-lg-3 .card.sticky-top:hover {
    transform: none !important;
    box-shadow: var(--shadow-sm) !important;
}

/* ==========================================================================
   Editor — Chapter content cards
   ========================================================================== */

.col-lg-9 > .card:hover {
    transform: none !important;
}

/* Chapter action buttons */
.analyze-chapter-btn {
    background-color: var(--accent-subtle) !important;
    color: var(--accent) !important;
    border: 1px solid rgba(226,168,75,0.2) !important;
}
.analyze-chapter-btn:hover {
    background-color: var(--accent-glow) !important;
    border-color: var(--accent) !important;
}

.stitch-chapter-btn {
    background-color: var(--success-soft) !important;
    color: var(--success-text) !important;
    border: 1px solid rgba(92,184,138,0.2) !important;
}
.stitch-chapter-btn:hover {
    background-color: rgba(92,184,138,0.18) !important;
    border-color: var(--success) !important;
}

/* ==========================================================================
   Paragraph Containers
   ========================================================================== */

.paragraph-container {
    background-color: transparent;
    border-radius: var(--radius-md);
    padding: 0.85rem 1rem !important;
    transition: background-color 0.2s, border-color 0.2s;
    border: 1px solid transparent;
    margin-bottom: 0.25rem !important;
}

.paragraph-container:hover {
    background-color: #22262d;
    box-shadow: none;
}

/* Dialogue */
.dialogue-highlight {
    background-color: #22262d !important;
    border: 1px solid rgba(255,255,255,0.06);
    border-left: 3px solid var(--accent) !important;
    box-shadow: none;
}
.dialogue-highlight:hover {
    border-color: rgba(255,255,255,0.1);
    border-left-color: var(--accent) !important;
}

/* Voiced */
.voiced-paragraph {
    background-color: rgba(92,184,138,0.04) !important;
    border-left: 3px solid var(--success) !important;
}
.voiced-paragraph:hover {
    background-color: rgba(92,184,138,0.07) !important;
}

/* Clickable text */
.text-clickable { cursor: pointer; }
.text-clickable:hover { color: var(--accent) !important; }

/* Playing */
.playing-paragraph {
    background-color: var(--accent-subtle) !important;
    border-color: var(--accent) !important;
    box-shadow: var(--shadow-glow) !important;
}

/* Paragraph text */
.paragraph-text {
    color: var(--text-secondary) !important;
    font-size: 0.9rem;
    line-height: 1.7;
}
.dialogue-highlight .paragraph-text {
    color: var(--text-primary) !important;
}

/* Analyze single btn */
.analyze-single-btn {
    background-color: var(--bg-hover) !important;
    color: var(--accent) !important;
    border: 1px solid rgba(255,255,255,0.06) !important;
}
.analyze-single-btn:hover {
    background-color: var(--accent-subtle) !important;
    border-color: var(--accent) !important;
}

/* ==========================================================================
   Audio players — invert to match dark theme
   ========================================================================== */

audio {
    filter: invert(1) hue-rotate(180deg) brightness(0.85) contrast(0.9);
    border-radius: var(--radius-sm);
    opacity: 0.8;
    transition: opacity 0.2s;
}
audio:hover { opacity: 1; }

/* ==========================================================================
   Modal — force dark
   ========================================================================== */

.modal-content {
    background-color: #1a1d22 !important;
    border: 1px solid rgba(255,255,255,0.1) !important;
    border-radius: var(--radius-xl) !important;
    box-shadow: var(--shadow-lg) !important;
    color: #e8e4df !important;
}

.modal-header {
    border-bottom: none !important;
    color: #e8e4df !important;
}
.modal-header .modal-title {
    color: #e8e4df !important;
}

.modal-body {
    color: #e8e4df !important;
}

.modal-footer {
    border-top: none !important;
}

.modal-backdrop.show {
    opacity: 0.7 !important;
    background-color: #000 !important;
}

/* ==========================================================================
   Spinner
   ========================================================================== */

.spinner-border {
    border-color: var(--accent) !important;
    border-right-color: transparent !important;
}
.spinner-border-sm {
    width: 0.85rem;
    height: 0.85rem;
    border-width: 0.15em;
}

/* ==========================================================================
   Scroll anchor offset
   ========================================================================== */

.scroll-mt-5 {
    scroll-margin-top: 2rem;
}

.hover-opacity-100:hover {
    opacity: 1 !important;
}

.border-danger-soft {
    border-color: rgba(212, 87, 78, 0.3) !important;
}

/* Status swap on hover */
.status-action-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    min-width: 60px;
}

.btn-delete-managed {
    position: absolute;
    top: 50%;
    right: 0;
    transform: translateY(-50%);
    opacity: 0;
    pointer-events: none;
    transition: all 0.2s ease;
    z-index: 15;
}

.status-badge-managed {
    transition: opacity 0.2s ease;
}

.card:hover .status-badge-managed {
    opacity: 0;
}

.card:hover .btn-delete-managed {
    opacity: 1;
    pointer-events: auto;
}

/* ==========================================================================
   Page load animation
   ========================================================================== */

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(12px); }
    to   { opacity: 1; transform: translateY(0); }
}

.container > .row {
    animation: fadeUp 0.4s ease-out both;
}
.container > .row:nth-child(2) {
    animation-delay: 0.08s;
}

.col-lg-9 > .card {
    animation: fadeUp 0.35s ease-out both;
}
.col-lg-9 > .card:nth-child(2) { animation-delay: 0.06s; }
.col-lg-9 > .card:nth-child(3) { animation-delay: 0.12s; }
.col-lg-9 > .card:nth-child(4) { animation-delay: 0.18s; }

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

@media (max-width: 991.98px) {
    .col-lg-3 .card.sticky-top {
        position: relative !important;
        top: 0 !important;
        max-height: none !important;
    }
}

@media (max-width: 767.98px) {
    .paragraph-container { padding: 0.65rem 0.75rem !important; }
    .card-body { padding: 1rem !important; }
}