/* Stylesheet khusus untuk Halaman Informasi TKA (snbt.html) */

/* Info Hub Tabs */
.tka-info-container {
    margin-top: 24px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.tka-tabs-header {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding-bottom: 8px;
    scrollbar-width: thin;
    scrollbar-color: var(--border) transparent;
}

.tka-tabs-header::-webkit-scrollbar {
    height: 5px;
}
.tka-tabs-header::-webkit-scrollbar-track {
    background: transparent;
}
.tka-tabs-header::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 99px;
}

.tka-tab-btn {
    flex: 1;
    min-width: 150px;
    white-space: nowrap;
    border: 1px solid var(--border);
    background: var(--card-bg);
    color: var(--dark);
    padding: 14px 20px;
    border-radius: 20px;
    cursor: pointer;
    font-weight: 800;
    font-size: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: transform 0.22s ease, border-color 0.22s ease, box-shadow 0.22s ease, background 0.22s ease;
}

.tka-tab-btn:hover {
    transform: translateY(-2px);
    border-color: rgba(79, 140, 255, 0.4);
    box-shadow: var(--shadow-soft);
}

.tka-tab-btn.active {
    background: linear-gradient(135deg, var(--green), var(--blue));
    color: white;
    border-color: transparent;
    box-shadow: 0 10px 24px rgba(50, 214, 107, 0.24);
    animation: correctPop 0.38s ease;
}

.tka-tab-content {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 30px;
    padding: 32px;
    box-shadow: var(--shadow-soft);
    backdrop-filter: blur(18px);
    transition: opacity 0.3s ease, transform 0.3s ease;
    animation: pageFloatIn 0.5s cubic-bezier(0.2, 0.8, 0.2, 1) both;
}

.tka-tab-content.hidden {
    display: none;
    opacity: 0;
    transform: translateY(10px);
}

.tka-tab-content h3 {
    font-size: 24px;
    font-weight: 850;
    margin-bottom: 12px;
    letter-spacing: -0.03em;
}

.tka-tab-content p {
    font-size: 15px;
    line-height: 1.7;
    margin-bottom: 20px;
}

/* Info Grid Layouts inside Tabs */
.tka-info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin-top: 16px;
}

.tka-info-card {
    background: var(--item-bg);
    border: 1px solid var(--border);
    border-radius: 22px;
    padding: 24px;
    transition: transform 0.24s ease, box-shadow 0.24s ease;
}

.tka-info-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-soft);
    border-color: rgba(79, 140, 255, 0.2);
}

.tka-info-card-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.tka-info-card-icon {
    width: 40px;
    height: 40px;
    border-radius: 14px;
    display: grid;
    place-items: center;
    font-size: 18px;
    font-weight: bold;
    color: white;
    background: linear-gradient(135deg, var(--blue), var(--purple));
}

.tka-info-card-header h4 {
    font-size: 18px;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.tka-info-card p {
    font-size: 14px;
    line-height: 1.6;
    color: var(--muted);
    margin: 0;
}

/* IRT Step Flow Visualizer */
.irt-flow {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: 16px;
}

.irt-step {
    display: grid;
    grid-template-columns: 46px 1fr;
    gap: 16px;
    align-items: start;
    position: relative;
}

.irt-step:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 46px;
    left: 23px;
    bottom: -16px;
    width: 2px;
    background: var(--border);
}

.irt-step-num {
    width: 46px;
    height: 46px;
    border-radius: 16px;
    display: grid;
    place-items: center;
    background: #eef7f2;
    color: var(--green-dark);
    font-weight: 900;
    font-size: 16px;
    border: 1px solid var(--border);
    transition: background 0.3s, color 0.3s;
}

body.dark-theme .irt-step-num {
    background: rgba(50, 214, 107, 0.14);
    color: var(--green);
}

.irt-step:hover .irt-step-num {
    background: linear-gradient(135deg, var(--green), var(--blue));
    color: white;
    border-color: transparent;
}

.irt-step-content {
    background: var(--item-bg);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 16px 20px;
}

.irt-step-content h5 {
    font-size: 16px;
    font-weight: 800;
    margin-bottom: 6px;
}

.irt-step-content p {
    font-size: 13.5px;
    line-height: 1.5;
    color: var(--muted);
    margin: 0;
}

/* Syllabus Accordion */
.tka-syllabus-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-top: 24px;
}

@media (max-width: 868px) {
    .tka-syllabus-container {
        grid-template-columns: 1fr;
    }
}

.tka-syllabus-column h3 {
    font-size: 20px;
    font-weight: 800;
    margin-bottom: 16px;
    letter-spacing: -0.03em;
    display: flex;
    align-items: center;
    gap: 10px;
}

.tka-syllabus-column h3 span {
    font-size: 12px;
    padding: 4px 10px;
    border-radius: 99px;
    font-weight: 900;
}

.tka-syllabus-column.saintek h3 span {
    background: rgba(79, 140, 255, 0.15);
    color: var(--blue);
}

.tka-syllabus-column.soshum h3 span {
    background: rgba(139, 92, 246, 0.15);
    color: var(--purple);
}

.tka-accordion {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.tka-accordion-item {
    border: 1px solid var(--border);
    background: var(--card-bg);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-soft);
    transition: transform 0.22s, border-color 0.22s;
}

.tka-accordion-item:hover {
    transform: translateY(-2px);
    border-color: rgba(79, 140, 255, 0.3);
}

.tka-accordion-header {
    width: 100%;
    border: 0;
    background: transparent;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    cursor: pointer;
    font-weight: 800;
    font-size: 15.5px;
    color: var(--dark);
    text-align: left;
    outline: none;
    transition: background 0.2s;
}

.tka-accordion-header:hover {
    background: rgba(102, 112, 133, 0.04);
}

.tka-accordion-title-wrap {
    display: flex;
    align-items: center;
    gap: 12px;
}

.tka-subject-icon {
    width: 34px;
    height: 34px;
    border-radius: 10px;
    display: grid;
    place-items: center;
    font-size: 14px;
    color: white;
}

.saintek .tka-subject-icon {
    background: linear-gradient(135deg, var(--blue), #2563eb);
}

.soshum .tka-subject-icon {
    background: linear-gradient(135deg, var(--purple), #6d28d9);
}

.tka-accordion-arrow {
    font-size: 12px;
    color: var(--muted);
    transition: transform 0.3s ease;
}

.tka-accordion-item.active .tka-accordion-arrow {
    transform: rotate(180deg);
}

.tka-accordion-body {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    border-top: 1px solid transparent;
}

.tka-accordion-item.active .tka-accordion-body {
    border-color: var(--border);
}

.tka-accordion-inner {
    padding: 18px 20px;
    background: var(--item-bg);
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.tka-syllabus-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 10px;
    list-style: none;
    padding: 0;
    margin: 0;
}

.tka-syllabus-list li {
    font-size: 13px;
    font-weight: 700;
    color: var(--dark);
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 8px 12px;
}

.tka-syllabus-list li::before {
    content: "✓";
    color: var(--green-dark);
    font-weight: 900;
}

body.dark-theme .tka-syllabus-list li::before {
    color: var(--green);
}

.tka-topic-focus {
    background: rgba(255, 159, 67, 0.08);
    border: 1px solid rgba(255, 159, 67, 0.2);
    border-radius: 14px;
    padding: 12px 14px;
    font-size: 13px;
    line-height: 1.5;
}

.tka-topic-focus strong {
    color: var(--orange);
    display: block;
    margin-bottom: 4px;
}

/* IRT Score Simulator styling */
.irt-simulator-card {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 32px;
    align-items: stretch;
}

@media (max-width: 768px) {
    .irt-simulator-card {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}

.irt-simulator-inputs {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.irt-sim-slider-container {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.irt-sim-slider-wrap {
    display: flex;
    align-items: center;
    gap: 16px;
}

.irt-sim-slider {
    flex: 1;
    height: 8px;
    border-radius: 99px;
    outline: none;
    background: var(--border);
    -webkit-appearance: none;
    appearance: none;
    transition: background 0.3s;
}

.irt-sim-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--green), var(--blue));
    cursor: pointer;
    box-shadow: 0 4px 10px rgba(50, 214, 107, 0.3);
    transition: transform 0.15s;
}

.irt-sim-slider::-webkit-slider-thumb:hover {
    transform: scale(1.15);
}

.irt-sim-slider-value {
    min-width: 32px;
    text-align: right;
    font-size: 20px;
    font-weight: 950;
    color: var(--green-dark);
}

body.dark-theme .irt-sim-slider-value {
    color: var(--green);
}

.irt-sim-option-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}

.irt-sim-option-btn {
    border: 1px solid var(--border);
    background: var(--white);
    color: var(--dark);
    padding: 12px 10px;
    border-radius: 16px;
    cursor: pointer;
    font-size: 13px;
    font-weight: 800;
    text-align: center;
    transition: all 0.22s ease;
}

.irt-sim-option-btn:hover {
    transform: translateY(-2px);
    border-color: rgba(79, 140, 255, 0.4);
}

.irt-sim-option-btn.active {
    background: linear-gradient(135deg, var(--blue), var(--purple));
    color: white;
    border-color: transparent;
    box-shadow: 0 8px 18px rgba(79, 140, 255, 0.2);
    animation: correctPop 0.38s ease;
}

.irt-simulator-result {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    background: var(--item-bg);
    border: 1px solid var(--border);
    border-radius: 24px;
    padding: 32px 24px;
    position: relative;
    overflow: hidden;
}

.irt-sim-score-ring {
    width: 130px;
    height: 130px;
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: conic-gradient(var(--blue) var(--score-pct, 50%), var(--border) 0);
    position: relative;
    margin-bottom: 20px;
    box-shadow: var(--shadow-soft);
    animation: ringPulse 3s infinite ease-in-out;
}

.irt-sim-score-ring::after {
    content: "";
    position: absolute;
    inset: 12px;
    border-radius: 50%;
    background: var(--white);
}

.irt-sim-score-val {
    position: relative;
    z-index: 1;
    font-size: 32px;
    font-weight: 950;
    letter-spacing: -0.04em;
    color: var(--dark);
}

.irt-sim-score-lbl {
    position: relative;
    z-index: 1;
    font-size: 11px;
    font-weight: 900;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-top: 2px;
}

.irt-sim-verdict {
    font-size: 18px;
    font-weight: 850;
    margin-bottom: 8px;
    color: var(--dark);
}

.irt-sim-desc {
    font-size: 13px;
    line-height: 1.5;
    color: var(--muted);
    margin: 0;
    max-width: 240px;
}