/* TTC Premium Q&A Library - Front-end Styles */

:root {
    --ttc-primary: #6366f1;
    --ttc-primary-hover: #4f46e5;
    --ttc-accent: #f59e0b;
    --ttc-dark-bg: #020617;
    --ttc-card-bg: #111827;
    --ttc-text: #f1f5f9;
    --ttc-text-muted: #e2e8f0;
    --ttc-border: #334155;
    --ttc-radius: var(--ttc-radius-lg);
}

.ttc-student-profile {
    transition: var(--ttc-transition);
}

.ttc-student-profile:hover {
    transform: translateY(-4px);
    box-shadow: var(--ttc-shadow-lg);
}

.ttc-card {
    background: var(--ttc-card-bg);
    border: 1px solid var(--ttc-border);
    border-radius: var(--ttc-radius-lg);
    padding: var(--ttc-space-lg);
    color: var(--ttc-text);
}

.ttc-button-primary {
    background: var(--ttc-primary);
    color: white;
    border: none;
    border-radius: var(--ttc-radius-md);
    padding: var(--ttc-space-sm) var(--ttc-space-lg);
    font-weight: var(--ttc-fw-semibold);
    cursor: pointer;
    transition: var(--ttc-transition-fast);
    text-decoration: none;
    display: inline-block;
}

.ttc-button-primary:hover {
    background: var(--ttc-primary-hover);
    transform: scale(1.02);
}

.ttc-muted {
    color: var(--ttc-text-muted);
}

/* GO TO TOP BUTTON */
#ttc_go_to_top {
    position: fixed;
    bottom: var(--ttc-space-2xl);
    right: var(--ttc-space-2xl);
    width: 45px;
    height: 45px;
    background: var(--ttc-primary);
    color: #fff;
    border: none;
    border-radius: var(--ttc-radius-pill);
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    font-size: var(--ttc-fs-lg);
    z-index: 9999;
    box-shadow: var(--ttc-shadow-md);
    transition: var(--ttc-transition);
}

#ttc_go_to_top:hover {
    transform: translateY(-5px);
    box-shadow: var(--ttc-shadow-lg);
    filter: brightness(1.1);
}

/* SORT DROPDOWN */
.ttc-sort-select {
    padding: var(--ttc-space-sm) calc(var(--ttc-space-lg) + 1.5rem) var(--ttc-space-sm) var(--ttc-space-md);
    border: 1px solid var(--ttc-border-light);
    border-radius: var(--ttc-radius-md);
    background: #fff;
    color: var(--ttc-text-main);
    font-size: var(--ttc-fs-sm);
    font-weight: var(--ttc-fw-medium);
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2364748b'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 1rem;
    transition: var(--ttc-transition-fast);
}

.ttc-answer-text p,
.ttc-answer p {
    margin: 0 0 1rem;
    line-height: 1.75;
}

.ttc-answer-text strong,
.ttc-answer strong {
    color: var(--ttc-text-main, #1e293b);
    font-weight: 700;
}

.ttc-import-answer-list {
    margin: 0 0 1rem 1.25rem;
    padding: 0;
}

.ttc-import-answer-list li {
    margin: 0.4rem 0;
    padding-left: 0.25rem;
    line-height: 1.7;
}

.ttc-answer-text h3,
.ttc-answer h3,
.ttc-answer-text h4,
.ttc-answer h4 {
    margin: 1.35rem 0 0.65rem;
    line-height: 1.3;
    color: var(--ttc-text-main, #1e293b);
}

.ttc-import-table-wrap {
    width: 100%;
    overflow-x: auto;
    margin: 1rem 0;
}

.ttc-import-answer-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.95rem;
}

.ttc-import-answer-table th,
.ttc-import-answer-table td {
    border: 1px solid var(--ttc-border, #e2e8f0);
    padding: 0.65rem 0.75rem;
    text-align: left;
    vertical-align: top;
}

.ttc-import-answer-table th {
    background: var(--ttc-bg-muted, #f8fafc);
    font-weight: 700;
}

.ttc-paste-answer-section {
    margin: 0 0 1.75rem;
    scroll-margin-top: 96px;
}

.ttc-paste-answer-section > h3 {
    border-bottom: 1px solid var(--ttc-border, #e2e8f0);
    padding-bottom: 0.45rem;
}

.ttc-paste-answer-toc {
    position: sticky;
    top: 0.75rem;
    z-index: 2;
    margin: 0 0 1.25rem;
    padding: 0.85rem;
    border: 1px solid var(--ttc-border, #e2e8f0);
    border-radius: 8px;
    background: var(--ttc-card-bg-solid, #ffffff);
    box-shadow: var(--ttc-shadow-sm, 0 1px 2px rgba(15, 23, 42, 0.08));
}

.ttc-paste-answer-toc strong {
    display: block;
    margin-bottom: 0.55rem;
    font-size: 0.85rem;
}

.ttc-paste-answer-toc div {
    display: flex;
    flex-wrap: wrap;
    gap: 0.45rem;
}

.ttc-paste-answer-toc a {
    display: inline-flex;
    align-items: center;
    max-width: 100%;
    padding: 0.35rem 0.55rem;
    border-radius: 999px;
    background: var(--ttc-bg-muted, #f8fafc);
    color: var(--ttc-text-main, #1e293b);
    font-size: 0.82rem;
    line-height: 1.25;
    text-decoration: none;
}

.ttc-paste-answer-toc a:hover {
    background: var(--ttc-primary, #2563eb);
    color: #fff;
}