:root {
    --app-bg: #f4f1eb;
    --app-surface: #ffffff;
    --app-surface-strong: #fbf7f1;
    --app-border: #ded4c7;
    --app-border-strong: #c9b8a5;
    --app-text: #171826;
    --app-muted: #646b7d;
    --app-primary: #3457d5;
    --app-primary-dark: #243da6;
    --app-primary-soft: #e7ecff;
    --app-accent: #e25535;
    --app-accent-soft: #ffe9df;
    --app-teal: #07847e;
    --app-teal-soft: #dff7f3;
    --app-success: #12805c;
    --app-warning: #f4a100;
    --app-danger: #dc2626;
    --app-ring: rgba(52, 87, 213, 0.2);
    --app-radius: 16px;
    --app-shadow: 0 18px 45px rgba(15, 23, 42, 0.1);
}

.app-progress {
    position: fixed;
    inset: 0 0 auto 0;
    z-index: 120000;
    pointer-events: none;
    opacity: 0;
    transform: translateY(-0.25rem);
    transition: opacity 140ms ease, transform 140ms ease;
}

.app-progress.is-active {
    opacity: 1;
    transform: translateY(0);
}

.app-progress__track {
    width: 100%;
    height: 4px;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.55);
    box-shadow: 0 1px 0 rgba(17, 24, 39, 0.08);
}

.app-progress__bar {
    width: 42%;
    height: 100%;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--app-accent), var(--app-primary), var(--app-teal));
    box-shadow: 0 0 22px rgba(52, 87, 213, 0.42);
    animation: app-progress-run 1.05s cubic-bezier(0.42, 0, 0.2, 1) infinite;
}

.app-progress__message {
    position: fixed;
    top: 0.85rem;
    right: 1rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    max-width: min(24rem, calc(100vw - 2rem));
    padding: 0.55rem 0.75rem;
    color: var(--app-text);
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid rgba(201, 184, 165, 0.75);
    border-radius: 999px;
    box-shadow: 0 14px 34px rgba(15, 23, 42, 0.16);
    font-size: 0.88rem;
    font-weight: 700;
    line-height: 1.1;
    backdrop-filter: blur(14px);
}

.app-progress__dot {
    width: 0.55rem;
    height: 0.55rem;
    flex: 0 0 auto;
    border-radius: 999px;
    background: var(--app-accent);
    box-shadow: 0 0 0 0 rgba(226, 85, 53, 0.35);
    animation: app-progress-pulse 1s ease-out infinite;
}

.app-progress__text {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

@keyframes app-progress-run {
    0% {
        transform: translateX(-110%);
    }
    52% {
        transform: translateX(68vw);
    }
    100% {
        transform: translateX(120vw);
    }
}

@keyframes app-progress-pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(226, 85, 53, 0.35);
    }
    100% {
        box-shadow: 0 0 0 0.55rem rgba(226, 85, 53, 0);
    }
}

html, body {
    min-height: 100%;
    background:
        radial-gradient(circle at top left, rgba(226, 85, 53, 0.12), transparent 30rem),
        radial-gradient(circle at top right, rgba(7, 132, 126, 0.1), transparent 28rem),
        var(--app-bg);
    color: var(--app-text);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    letter-spacing: 0;
}

a, .btn-link {
    color: var(--app-primary);
}

.btn-primary {
    color: #fff;
    background: linear-gradient(135deg, var(--app-primary), #2f6be8);
    border-color: transparent;
    box-shadow: 0 10px 22px rgba(52, 87, 213, 0.18);
}

.btn-primary:hover,
.btn-primary:focus {
    background: linear-gradient(135deg, var(--app-primary-dark), var(--app-primary));
    border-color: transparent;
}

.btn,
.form-control,
.form-select,
.input-group-text {
    border-radius: 0.85rem;
}

.input-group .form-control {
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
}

.input-group .input-group-text {
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
    background: var(--app-surface-strong);
    color: var(--app-muted);
}

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
  border-color: var(--app-primary);
  box-shadow: 0 0 0 0.25rem var(--app-ring);
}

.content {
    padding-top: 1.1rem;
}

.modern-page {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.modern-hero {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 1.25rem;
    padding: clamp(1.15rem, 2.5vw, 2rem);
    background:
        radial-gradient(circle at 0% 100%, rgba(226, 85, 53, 0.14), transparent 30%),
        radial-gradient(circle at 100% 0%, rgba(52, 87, 213, 0.14), transparent 34%),
        linear-gradient(135deg, #fffaf2 0%, #f7fbff 54%, #eaf8f4 100%);
    border: 1px solid rgba(116, 87, 57, 0.12);
    border-radius: 24px;
    box-shadow: 0 18px 48px rgba(68, 52, 37, 0.09);
}

.modern-hero-title {
    margin: 0;
    color: var(--app-text);
    font-size: clamp(1.8rem, 3vw, 3rem);
    font-weight: 820;
    line-height: 1.05;
}

.modern-hero-kicker {
    margin: 0 0 0.45rem;
    color: var(--app-accent);
    font-size: 0.78rem;
    font-weight: 780;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.modern-hero-subtitle {
    margin: 0.65rem 0 0;
    color: var(--app-muted);
}

.modern-card {
    overflow: hidden;
    background: var(--app-surface);
    border: 1px solid rgba(116, 87, 57, 0.11);
    border-radius: var(--app-radius);
    box-shadow: 0 12px 35px rgba(68, 52, 37, 0.07);
}

.modern-card .card-header {
    background: linear-gradient(135deg, #fffaf4, #f3f8ff);
    border-bottom: 1px solid rgba(116, 87, 57, 0.1);
}

.modern-grid {
    --bs-gutter-x: 1.25rem;
    --bs-gutter-y: 1.25rem;
}

.modern-empty {
    padding: 1.25rem;
    color: #075f5a;
    background: var(--app-teal-soft);
    border: 1px solid rgba(7, 132, 126, 0.24);
    border-radius: var(--app-radius);
}

.modern-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.35rem 0.55rem;
    color: #585d6d;
    background: #f3eee7;
    border-radius: 999px;
}

.admin-utility-page {
    max-width: 1480px;
    margin: 0 auto;
}

.admin-utility-page > .row:first-child {
    padding: clamp(1rem, 2.2vw, 1.6rem);
    background:
        radial-gradient(circle at 100% 0%, rgba(52, 87, 213, 0.12), transparent 34%),
        linear-gradient(135deg, #fffaf4, #eff8f6);
    border: 1px solid rgba(116, 87, 57, 0.12);
    border-radius: 22px;
    box-shadow: 0 14px 38px rgba(68, 52, 37, 0.08);
}

.admin-utility-page > .row:first-child h1,
.admin-utility-page > .row:first-child h2,
.admin-utility-page > .row:first-child h3 {
    margin-bottom: 0.35rem;
    color: var(--app-text);
    font-weight: 820;
}

.admin-utility-page .card {
    overflow: hidden;
    background: var(--app-surface);
    border: 1px solid rgba(116, 87, 57, 0.11);
    border-radius: var(--app-radius);
    box-shadow: 0 12px 35px rgba(68, 52, 37, 0.07);
}

.admin-utility-page .card-header {
    color: var(--app-text) !important;
    background:
        radial-gradient(circle at 100% 0%, rgba(52, 87, 213, 0.1), transparent 32%),
        linear-gradient(135deg, #fffaf4, #f3f8ff) !important;
    border-bottom: 1px solid rgba(116, 87, 57, 0.1);
}

.admin-utility-page .table {
    margin-bottom: 0;
}

.admin-utility-page .table thead th {
    color: var(--app-muted);
    font-size: 0.78rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    background: #fbf7f1;
}

.modern-auth-page {
    min-height: calc(100vh - 8rem);
    display: grid;
    place-items: center;
}

.modern-auth-page .card {
    overflow: hidden;
    border: 1px solid rgba(116, 87, 57, 0.12);
    border-radius: 24px;
    box-shadow: 0 22px 52px rgba(68, 52, 37, 0.12);
}

@media (max-width: 767px) {
    .modern-page {
        gap: 0.9rem;
    }

    .modern-hero {
        align-items: stretch;
        flex-direction: column;
        padding: 1rem;
        border-radius: 20px;
    }

    .modern-hero-title {
        font-size: 1.8rem;
    }

    .modern-hero-subtitle {
        font-size: 0.92rem;
    }

    .admin-utility-page > .row:first-child {
        padding: 1rem;
        border-radius: 20px;
    }

    .admin-utility-page .table-responsive {
        border: 1px solid rgba(116, 87, 57, 0.12);
        border-radius: 14px;
    }
}

h1:focus {
    outline: none;
}

.valid.modified:not([type=checkbox]) {
    outline: 1px solid #26b050;
}

.invalid {
    outline: 1px solid #e50000;
}

.validation-message {
    color: #e50000;
}

.blazor-error-boundary {
    background: url(data:image/svg+xml;base64,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) no-repeat 1rem/1.8rem, #b32121;
    padding: 1rem 1rem 1rem 3.7rem;
    color: white;
}

    .blazor-error-boundary::after {
        content: "An error has occurred."
    }

.darker-border-checkbox.form-check-input {
    border-color: #929292;
}

.form-floating > .form-control-plaintext::placeholder, .form-floating > .form-control::placeholder {
    color: var(--bs-secondary-color);
    text-align: end;
}

.form-floating > .form-control-plaintext:focus::placeholder, .form-floating > .form-control:focus::placeholder {
    text-align: start;
}

/* Fix gray area below book thumbnails - ensure no gap between image and card-body */
.card > .card-img-top {
    margin-bottom: 0 !important;
    padding-bottom: 0 !important;
    border-bottom: none !important;
}

.card > .card-img-top + .card-body {
    margin-top: 0 !important;
    padding-top: 1rem !important;
}

/* Fullscreen layout for current-read page - override MainLayout padding */
[data-fullscreen-read] {
    position: fixed !important;
    top: 56px !important; /* Below navbar */
    left: 0 !important;
    width: 100vw !important;
    height: calc(100vh - 56px) !important;
    margin: 0 !important;
    padding: 0 !important;
    z-index: 1 !important;
}

/* Ensure MainLayout content doesn't add padding when fullscreen read is active */
body:has([data-fullscreen-read]) article.content {
    padding: 0 !important;
}

body:has([data-fullscreen-read]) .app-quick-nav,
body:has([data-fullscreen-read]) .desktop-scroll-top {
    display: none !important;
}

body:has(.modern-auth-page) .app-quick-nav,
body:has(.modern-auth-page) .desktop-scroll-top {
    display: none !important;
}

/* Safari compatibility fix for bottom navigation bar */
#pdf-bottom-controls {
    position: fixed !important;
    bottom: 0 !important;
    left: 0 !important;
    right: 0 !important;
    z-index: 1040 !important;
    -webkit-transform: translateZ(0) !important;
    transform: translateZ(0) !important;
    -webkit-backface-visibility: hidden !important;
    backface-visibility: hidden !important;
    will-change: transform !important;
}

/* Ensure PDF viewer container supports swipe gestures */
#pdf-viewer-container {
    touch-action: pan-x pan-y pinch-zoom;
    -webkit-overflow-scrolling: touch;
}

#pdf-canvas {
    touch-action: pan-x pan-y pinch-zoom !important;
}