/* ── Write-Ups (Binder Layout) ── */
.binder-container {
    display: flex;
    background: var(--surface);
    border-radius: 12px;
    box-shadow: 0 8px 25px var(--shadow-lg);
    border: 1px solid var(--border);
    overflow: hidden;
    min-height: 600px;
}

.binder-tabs-container {
    flex: 0 0 200px;
    background: var(--bg-light);
    border-left: 1px solid var(--border);
    display: flex;
}

.binder-tabs {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 2rem 0;
    width: 100%;
}

.binder-tab {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    padding: 1rem 1.2rem;
    cursor: pointer;
    color: white;
    font-size: 0.85rem;
    font-weight: 600;
    transition: all 0.3s ease;
    margin-right: -8px;
    border-radius: 8px 0 0 8px;
    box-shadow: -2px 2px 6px var(--shadow);
    border: 1px solid rgba(0, 0, 0, 0.1);
    opacity: 0.85;
}

.binder-tab span {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.binder-tab:hover {
    transform: translateX(-4px);
    opacity: 1;
}

.binder-tab.active {
    margin-right: -16px;
    transform: translateX(-8px);
    box-shadow: -4px 4px 12px var(--shadow-lg), inset 0 0 0 2px rgba(255, 255, 255, 0.3);
    opacity: 1;
    filter: brightness(1.2);
}

.binder-page {
    flex: 1;
    padding: 2rem;
    position: relative;
    background: var(--surface);
}

.binder-content {
    position: relative;
}

.binder-paper {
    display: none;
    animation: fadeInPaper 0.4s ease;
}

.binder-paper.active {
    display: block;
}

@keyframes fadeInPaper {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.paper-layout {
    display: flex;
    gap: 2rem;
    align-items: flex-start;
}

.paper-text {
    flex: 1;
}

.paper-text h3 {
    font-family: var(--font-serif);
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}

.paper-tools {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px dashed var(--border);
}

.paper-tools strong {
    color: var(--accent);
}

.paper-text p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 1.2rem;
}

.paper-link {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.6rem 1.2rem;
    border-radius: 6px;
    background: var(--accent);
    color: white;
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 600;
    transition: all 0.2s ease;
}

.paper-link:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
}

.paper-image {
    flex: 0 0 240px;
}

/* Polaroid image style */
.polaroid {
    background: white;
    padding: 12px 12px 40px 12px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15), 0 2px 6px rgba(0, 0, 0, 0.1);
    transform: rotate(2deg);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    position: relative;
}

[data-theme="dark"] .polaroid {
    background: #1A2A3A;
}

.polaroid:hover {
    transform: rotate(0deg) scale(1.03);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
}

.polaroid img {
    width: 100%;
    height: 160px;
    object-fit: cover;
    display: block;
}

.polaroid-caption {
    position: absolute;
    bottom: 10px;
    left: 0;
    right: 0;
    text-align: center;
    font-family: 'Radley', serif;
    font-style: italic;
    font-size: 0.75rem;
    color: #555;
}

[data-theme="dark"] .polaroid-caption {
    color: #B0B8C8;
}

/* ── Case Study Page Styles (nist-assessment.html) ── */
.case-study-header {
    padding: 8rem 2rem 4rem;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    text-align: center;
}

.case-study-title {
    font-family: var(--font-serif);
    font-size: clamp(2.5rem, 5vw, 4rem);
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.case-study-meta {
    display: flex;
    justify-content: center;
    gap: 2rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
    flex-wrap: wrap;
}

.case-study-meta span {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.case-study-content {
    max-width: 900px;
    margin: 0 auto;
    padding: 4rem 2rem;
}

.case-study-section {
    margin-bottom: 4rem;
}

.case-study-section h2 {
    font-family: var(--font-serif);
    font-size: 2rem;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    border-bottom: 2px solid var(--accent-light);
    padding-bottom: 0.5rem;
}

.case-study-section h3 {
    font-size: 1.2rem;
    color: var(--text-primary);
    margin: 2rem 0 1rem;
}

.case-study-section p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.case-study-list {
    margin-left: 1.5rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

/* Case Study Tables */
.styled-table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
    font-size: 0.9rem;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.05);
    border-radius: 8px;
    overflow: hidden;
}

.styled-table thead tr {
    background-color: var(--text-primary);
    color: var(--surface);
    text-align: left;
}

.styled-table th,
.styled-table td {
    padding: 12px 15px;
    border-bottom: 1px solid var(--border);
}

.styled-table tbody tr:nth-of-type(even) {
    background-color: var(--bg-light);
}

.styled-table tbody tr:hover {
    background-color: var(--accent-light);
}

.risk-critical {
    color: #e53e3e;
    font-weight: bold;
}

.risk-high {
    color: #dd6b20;
    font-weight: bold;
}

.risk-medium {
    color: #d69e2e;
    font-weight: bold;
}

/* Download Button */
.download-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--accent);
    color: white;
    padding: 1rem 2rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    margin-top: 1rem;
    transition: all 0.2s ease;
}

.download-btn:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
}

/* Mobile Adjustments for Binder */
@media (max-width: 900px) {
    .binder-container {
        flex-direction: column;
    }

    .binder-tabs-container {
        flex: 0 0 auto;
        border-left: none;
        border-bottom: 1px solid var(--border);
        overflow-x: auto;
        transform: rotateX(180deg);
        scrollbar-width: thin;
    }

    .binder-tabs {
        flex-direction: row;
        padding: 0;
        gap: 6px;
        transform: rotateX(180deg);
        width: fit-content;
    }

    .binder-tab {
        flex: 0 0 auto;
        border-radius: 8px 8px 0 0;
        margin-right: 0;
        margin-bottom: 0;
        padding: 0.75rem 1rem;
        white-space: nowrap;
        opacity: 1;
    }

    .binder-tab:hover,
    .binder-tab.active {
        transform: none;
        margin-right: 0;
        margin-bottom: 0;
    }

    .binder-tab.active {
        filter: brightness(1.25);
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2), inset 0 0 0 2px rgba(255, 255, 255, 0.3);
    }

    .paper-layout {
        flex-direction: column;
    }

    .paper-image {
        flex: 0 0 auto;
        width: 100%;
        max-width: 300px;
        margin: 0 auto;
    }

    .polaroid {
        transform: rotate(0deg);
    }

    .binder-page {
        padding: 1.5rem;
    }
}