@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700;800&display=swap');

.tabs-section {
    --color-primary: #0b0932;
    --color-accent: #6916D9;
    --color-secondary: #5d3be3;
    --color-text-main: #1f1c4f;
    --color-text-muted: #5a6075;
    --color-bg-light: #f8fafc;
    --color-bg-white: #ffffff;
    --color-border: #e2e8f0;

    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;

    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow-sm: 0 1px 3px rgba(11, 9, 50, 0.05);
    --shadow-md: 0 10px 25px rgba(11, 9, 50, 0.06);

    position: relative;
    width: 100%;
    padding: 100px 60px;
    overflow: hidden;
    box-sizing: border-box;
    background-color: var(--color-bg-white);
    font-family: var(--font-body);
    color: var(--color-text-main);
}

.tabs-section .container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

@media (max-width: 1024px) {
    .tabs-section {
        padding: 90px 32px;
    }
}

@media (max-width: 768px) {
    .tabs-section {
        padding: 70px 24px;
    }
}

.tabs-section .text-accent {
    color: var(--color-accent);
}

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

.tabs-section .section-header {
    margin-bottom: 48px;
}

.tabs-section .section-overline {
    display: inline-block;
    color: var(--color-accent);
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 12px;
}

.tabs-section .section-title {
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--color-primary);
    font-size: 42px;
    margin-bottom: 16px;
    line-height: 1.25;
}

@media (max-width: 767px) {
    .tabs-section .section-title {
        font-size: 32px;
    }
}

/* ── Outer card ── */
.tabs-section .tabs-container {
    background-color: var(--color-bg-light);
    border-radius: 20px;
    padding: 40px;
    box-shadow: var(--shadow-md);
}

/* ── Controls row ── */
.tabs-section .tabs-control-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 2px solid var(--color-border);
    margin-bottom: 32px;
    padding-bottom: 16px;
    flex-wrap: wrap;
    gap: 16px;
}

/* Tab pills */
.tabs-section .tabs-list {
    display: flex;
    list-style: none;
    gap: 8px;
    padding: 0;
    flex-wrap: wrap;
}

.tabs-section .tab-btn {
    background: none;
    border: none;
    font-family: var(--font-heading);
    font-size: 15px;
    font-weight: 600;
    color: var(--color-text-muted);
    padding: 10px 22px;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition-fast);
    white-space: nowrap;
}

.tabs-section .tab-btn:hover {
    color: var(--color-secondary);
    background-color: rgba(93, 59, 227, 0.06);
}

.tabs-section .tab-btn.active {
    color: #fff;
    background-color: var(--color-secondary);
}

/* Level selector section wrapper */
.tabs-section .level-selector-section-wrapper {
    margin-bottom: 24px;
    display: flex;
    justify-content: flex-start;
    align-items: center;
}

/* Level selector */
.tabs-section .level-selector-wrapper {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.tabs-section .level-selector-label {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 16px;
    color: var(--color-primary);
    white-space: nowrap;
}

.tabs-section .level-select {
    padding: 10px 20px 10px 16px;
    font-family: var(--font-heading);
    font-size: 15px;
    font-weight: 600;
    color: var(--color-primary);
    background-color: var(--color-bg-white);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    outline: none;
    cursor: pointer;
    transition: var(--transition-fast);
    box-shadow: var(--shadow-sm);
}

.tabs-section .level-select:focus {
    border-color: var(--color-secondary);
    box-shadow: 0 0 0 3px rgba(93, 59, 227, 0.15);
}

/* ── Level Briefs ── */
.tabs-section .level-brief-container {
    margin-bottom: 32px;
    transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.tabs-section .level-brief-container.fading {
    opacity: 0;
    transform: translateY(4px);
}

.tabs-section .level-brief-paragraph {
    font-size: 15px;
    line-height: 1.7;
    color: var(--color-text-muted);
    margin: 0 0 16px 0;
    max-width: 820px;
}

.tabs-section .level-brief-paragraph:last-child {
    margin-bottom: 0;
}

.tabs-section .cert-link {
    font-size: 15px;
    color: var(--color-primary);
    font-weight: 500;
    line-height: 1.4;
    text-decoration: none;
    transition: var(--transition-fast);
}

.tabs-section .cert-link:hover {
    color: var(--color-accent);
    text-decoration: underline;
}

/* ── Content panel ── */
.tabs-section .tab-panel {
    transition: opacity 0.25s ease, transform 0.25s ease;
}

.tabs-section .tab-panel.fading {
    opacity: 0;
    transform: translateY(8px);
}


/* ── Category description (plain text, no card, sits directly below the tab list) ── */
.tabs-section .description-text {
    flex-basis: 100%;
    font-size: 15px;
    line-height: 1.7;
    color: var(--color-text-muted);
    margin: 12px 0 0 0;
    max-width: 820px;
    transition: opacity 0.25s ease, transform 0.25s ease;
}

.tabs-section .description-text.fading {
    opacity: 0;
    transform: translateY(8px);
}

/* ── Requirements card ── */
.tabs-section .requirements-card {
    background-color: var(--color-bg-white);
    border-radius: 14px;
    padding: 30px 34px;
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
}

.tabs-section .requirements-title {
    font-family: var(--font-heading);
    font-size: 18px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 20px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--color-border);
    position: relative;
}

.tabs-section .requirements-description {
    font-size: 14px;
    line-height: 1.7;
    color: var(--color-text-muted);
    margin: 0 0 20px 0;
}

.tabs-section .requirements-title::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 40px;
    height: 3px;
    background-color: var(--color-accent);
    border-radius: 2px;
}

/* Requirement rows */
.tabs-section .requirements-list {
    list-style: none;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.tabs-section .requirement-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--color-border);
}

.tabs-section .requirement-item:last-child {
    border-bottom: none;
}

.tabs-section .req-icon {
    flex-shrink: 0;
    margin-top: 2px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background-color: var(--color-accent);
    display: flex;
    align-items: center;
    justify-content: center;
}

.tabs-section .req-icon svg {
    width: 10px;
    height: 10px;
}

.tabs-section .req-body {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.tabs-section .req-code {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 13px;
    color: var(--color-accent);
    letter-spacing: 0.04em;
}

.tabs-section .req-name {
    font-size: 15px;
    color: var(--color-primary);
    font-weight: 500;
    line-height: 1.4;
}

/* N/A state */
.tabs-section .req-na {
    color: var(--color-text-muted);
    font-style: italic;
    font-size: 15px;
    padding: 8px 0;
}

/* ── Responsive ── */
@media (max-width: 767px) {
    .tabs-section .tabs-container {
        padding: 24px 16px;
    }

    .tabs-section .tabs-control-wrapper {
        flex-direction: column;
        align-items: stretch;
    }

    .tabs-section .level-selector-wrapper {
        flex-direction: column;
        align-items: flex-start;
    }

    .tabs-section .level-select {
        width: 100%;
    }
}