/* Global Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Arial, sans-serif;
    line-height: 1.6;
    color: #233142;
    background: linear-gradient(135deg, #f8fafc 0%, #eef4f7 100%);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* Header and Navigation */
header {
    background-color: #fff;
    padding: 2rem;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
    margin-bottom: 2rem;
}

h1 {
    color: #1f3557;
    margin-bottom: 1rem;
}

.content {
    background-color: #fff;
    padding: 2rem;
    border-radius: 16px;
    box-shadow: 0 12px 30px rgba(35, 49, 66, 0.08);
}

.intro {
    margin-bottom: 2rem;
    text-align: center;
}

.intro h2 {
    color: #1f3557;
    margin-bottom: 1rem;
    font-size: 2rem;
}

.intro p {
    margin-bottom: 1rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.8;
    color: #4d5b6d;
}

/* Navigation Bar */
.navbar {
    background: linear-gradient(90deg, #1f3557 0%, #2c4d76 100%) !important;
    box-shadow: 0 8px 24px rgba(31, 53, 87, 0.18);
    padding: 0.9rem 0;
}

.navbar-brand {
    color: white !important;
    font-weight: 700;
    letter-spacing: 0.02em;
}

.nav-link {
    color: white !important;
    font-weight: 500;
}

.language-switch {
    border-radius: 999px;
    min-width: 44px;
    transition: all 0.2s ease;
}

.language-switch.active {
    background-color: #fff;
    color: #1f3557;
    border-color: #fff;
}

/* Cards */
.card {
    margin-bottom: 2rem;
    border: 0;
    border-radius: 16px;
    box-shadow: 0 10px 28px rgba(35, 49, 66, 0.08);
    overflow: hidden;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
    transform: translateY(-3px);
    box-shadow: 0 14px 34px rgba(35, 49, 66, 0.12);
}

.card-title {
    color: #1f3557;
    font-weight: 700;
}

.card-text {
    color: #444;
}

.document-info {
    background: #fff;
    border: 1px solid #e5e7eb;
    border-radius: 10px;
    padding: 18px;
    margin-bottom: 20px;
}

.document-subtitle {
    color: #4b5563;
    margin-bottom: 12px;
}

.document-loading {
    color: #374151;
    background: #f3f4f6;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    padding: 12px;
    margin-bottom: 12px;
}

.document-error {
    color: #991b1b;
    background: #fee2e2;
    border: 1px solid #fecaca;
    border-radius: 8px;
    padding: 12px;
    margin-bottom: 12px;
}

.document-content {
    white-space: pre-wrap;
    line-height: 1.72;
    color: #1f2937;
    background: #f9fafb;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    padding: 16px;
    margin-bottom: 12px;
}

.pdf-viewer-shell {
    background: #fff;
    border: 1px solid #e5e7eb;
    border-radius: 10px;
    padding: 18px;
    margin-bottom: 20px;
}

.pdf-viewer-frame {
    width: 100%;
    min-height: 75vh;
    border: 1px solid #d1d5db;
    border-radius: 8px;
    background: #f9fafb;
}

.welcome-intro {
    overflow: auto;
}

.welcome-photo-link {
    float: left;
    margin: 0 16px 10px 0;
    display: inline-block;
}

.welcome-photo {
    width: 180px;
    max-width: 42vw;
    height: auto;
    border-radius: 8px;
    border: 1px solid #d1d5db;
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.12);
}

@media (max-width: 576px) {
    .welcome-photo-link {
        float: none;
        display: block;
        margin: 0 auto 12px;
        text-align: center;
    }

    .welcome-photo {
        max-width: 70vw;
    }
}

/* Document Grid */
.documents {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.document-card {
    background-color: #f8f9fa;
    padding: 1.5rem;
    border-radius: 12px;
    transition: transform 0.3s ease;
}

.document-card:hover {
    transform: translateY(-5px);
}

.document-card h3 {
    color: #1f3557;
    margin-bottom: 0.5rem;
}

.document-card p {
    color: #666;
}

/* Document protection notice */
.protection-notice {
    background: #fff3cd;
    color: #664d03;
    border: 1px solid #ffecb5;
    border-left: 6px solid #d39e00;
    border-radius: 8px;
    padding: 12px 14px;
    margin-bottom: 20px;
    font-size: 0.98rem;
}

.protection-notice strong {
    color: #533f03;
}

/* Reading bookmarks */
.reading-bookmarks {
    background: #ffffff;
    border: 1px solid #d9e2ec;
    border-radius: 8px;
    padding: 14px;
    margin-bottom: 20px;
}

.reading-bookmarks-header {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
    justify-content: space-between;
}

.reading-bookmarks h2 {
    margin: 0;
    font-size: 1.1rem;
    color: #1f2937;
}

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

.reading-bookmarks-help {
    color: #4b5563;
    margin: 8px 0 10px;
    font-size: 0.92rem;
}

.bookmark-name-row {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin: 8px 0 10px;
}

.bookmark-name-row span {
    color: #374151;
    font-size: 0.9rem;
}

.bookmark-name-row input {
    border: 1px solid #cbd5e1;
    border-radius: 6px;
    padding: 8px 10px;
    font-size: 0.92rem;
}

.reading-bookmarks-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 8px;
}

.bookmark-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    border: 1px solid #e5e7eb;
    border-radius: 6px;
    padding: 8px 10px;
    background: #f9fafb;
}

.bookmark-label {
    color: #374151;
    font-size: 0.92rem;
}

.bookmark-auto-tag {
    display: inline-block;
    margin-left: 6px;
    font-size: 0.72rem;
    padding: 2px 6px;
    border-radius: 99px;
    background: #e5edff;
    color: #2247a5;
    vertical-align: middle;
}

.bookmark-empty {
    color: #6b7280;
    font-size: 0.92rem;
    padding: 6px 2px;
}

.bookmark-item-actions {
    display: flex;
    gap: 6px;
}

.bookmark-btn {
    border: 1px solid #0d6efd;
    background: #0d6efd;
    color: #fff;
    border-radius: 6px;
    padding: 6px 10px;
    font-size: 0.85rem;
    line-height: 1.2;
    cursor: pointer;
}

.bookmark-btn.small {
    padding: 5px 8px;
}

.bookmark-btn.danger {
    background: #b91c1c;
    border-color: #b91c1c;
}

.bookmark-btn:hover {
    opacity: 0.92;
}

/* Global bookmarks page */
.global-bookmarks-shell {
    background: #fff;
    border: 1px solid #e5e7eb;
    border-radius: 10px;
    padding: 16px;
    margin-bottom: 20px;
}

.global-bookmarks-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.global-bookmarks-header h1 {
    margin: 0;
    font-size: 1.4rem;
}

.global-bookmarks-help {
    color: #4b5563;
    margin: 10px 0 14px;
}

.global-bookmarks-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 12px;
}

.global-bookmark-item {
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    background: #f9fafb;
    padding: 12px;
}

.global-bookmark-item h3 {
    font-size: 1rem;
    margin: 0 0 6px;
    color: #1f2937;
}

.global-bookmark-item p {
    color: #4b5563;
    font-size: 0.92rem;
    margin: 0 0 10px;
}

.global-bookmarks-empty {
    color: #6b7280;
    font-size: 0.95rem;
}

/* Footer */
footer {
    background: #f1f5f8;
    padding: 1.2rem 0;
    margin-top: 2rem;
    border-top: 1px solid #dce4ea;
}

footer .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

footer .contact-info {
    font-size: 0.95rem;
    color: #576574;
    margin-bottom: 1rem;
}

footer .contact-info p {
    margin: 0.5rem 0;
}

footer .copyright {
    color: #576574;
    font-size: 0.9rem;
    margin-top: 1rem;
}

.document-subtitle {
    color: #4b5563;
    margin-bottom: 12px;
}

.document-loading {
    color: #374151;
    background: #f3f4f6;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    padding: 12px;
    margin-bottom: 12px;
}

.document-error {
    color: #991b1b;
    background: #fee2e2;
    border: 1px solid #fecaca;
    border-radius: 8px;
    padding: 12px;
    margin-bottom: 12px;
}

.document-content {
    display: block;
    width: 100%;
    max-width: none;
    box-sizing: border-box;
    white-space: pre-wrap;
    line-height: 1.72;
    color: #1f2937;
    background: #f9fafb;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    padding: 16px;
    margin-bottom: 12px;
}

.pdf-viewer-frame {
    width: 100%;
    min-height: 75vh;
    border: 1px solid #d1d5db;
    border-radius: 8px;
    background: #f9fafb;
}

.bookmark-item {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    padding: 12px;
    margin-bottom: 10px;
}

.bookmark-label {
    font-weight: 600;
    color: #1f3557;
}

.bookmark-meta {
    color: #64748b;
    font-size: 0.95rem;
}

.bookmark-btn {
    display: inline-block;
    margin-top: 8px;
    color: #1f3557;
    text-decoration: none;
}

@media (max-width: 768px) {
    .container {
        padding: 15px;
    }

    .document-info {
        padding: 1.25rem;
    }
}