/*
 * GANITSUTRAM
 * A Living Knowledge Ecosystem for Mathematical Discovery
 *
 * "यथा शिखा मयूराणां नागानां मणयो यथा
 *  तद्वद् वेदाङ्गशास्त्राणां गणितं मूर्ध्नि वर्तते"
 *
 * As the crest of a peacock, as the gem on the hood
 * of a cobra — so stands mathematics at the crown
 * of all knowledge.
 *                                       — Brahmagupta
 *                                         628 CE · Brahmasphutasiddhanta
 *
 * Creator:   Jawahar R. Mallah
 */
/*
Project: GanitSūtram
Author: Jawahar R Mallah
Company: AITDL | aitdl.com
Purpose: Learning Platform specific styles.
         Tab systems, module grids, and level badges.
*/

/* ─── HERO SECTION ─────────────────────────────────────────── */
.gs-learning-hero {
    padding: 8rem 0 4rem;
    text-align: center;
}

.gs-sanskrit-line {
    font-family: var(--font-ancient);
    color: var(--accent-secondary);
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
    letter-spacing: 0.1em;
}

/* ─── PERSONA TABS ─────────────────────────────────────────── */
.gs-tab-container {
    margin: 3rem 0;
}

.gs-tabs {
    display: flex;
    justify-content: center;
    gap: 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding-bottom: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.gs-tab-btn {
    background: none;
    border: none;
    color: rgba(255, 255, 255, 0.5);
    font-family: var(--font-label);
    font-size: 0.9rem;
    font-weight: 700;
    text-transform: uppercase;
    padding: 0.75rem 1.5rem;
    cursor: pointer;
    transition: color 0.3s, border-bottom 0.3s;
    position: relative;
    letter-spacing: 0.05em;
}

.gs-tab-btn:hover {
    color: var(--fg-main);
}

.gs-tab-btn.active {
    color: var(--accent-primary);
}

.gs-tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: -1rem;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--accent-primary);
}

/* ─── TAB PANELS ───────────────────────────────────────────── */
.gs-tab-panel {
    display: none;
}

.gs-tab-panel.active {
    display: block;
    animation: fadeIn 0.4s ease-out;
}

.gs-panel-header {
    margin-bottom: 3rem;
    text-align: left;
}

.gs-panel-title {
    font-family: var(--font-display);
    font-size: 2rem;
    margin-bottom: 1rem;
    text-transform: uppercase;
}

.gs-panel-desc {
    font-family: var(--font-body);
    color: rgba(255, 255, 255, 0.6);
    max-width: 600px;
}

/* ─── MODULE GRID ──────────────────────────────────────────── */
.gs-module-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.gs-module-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    padding: 2.5rem;
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    transition: transform 0.3s, border-color 0.3s;
}

.gs-module-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-soft);
}

.gs-module-icon {
    font-size: 2.5rem;
}

.gs-module-card h3 {
    font-family: var(--font-display);
    font-size: 1.1rem;
    color: var(--fg-main);
    text-transform: uppercase;
}

.gs-badge {
    display: inline-block;
    font-family: var(--font-label);
    font-size: 0.65rem;
    font-weight: 800;
    text-transform: uppercase;
    padding: 0.35rem 0.85rem;
    border-radius: 4px;
    align-self: flex-start;
    letter-spacing: 0.05em;
}

/* ─── BADGE COLORS ─────────────────────────────────────────── */
.badge-beginner {
    background: #22c55e;
    color: #fff;
}

.badge-intermediate {
    background: #ffb300;
    color: #000;
}

.badge-advanced {
    background: #ff5500;
    color: #fff;
}

.badge-resource {
    background: #7c3aed;
    color: #fff;
}

.badge-tool {
    background: #0ea5e9;
    color: #fff;
}

.badge-guide {
    background: #ec4899;
    color: #fff;
}

.badge-activity {
    background: #14b8a6;
    color: #fff;
}

/* ─── NUDGE BANNER ─────────────────────────────────────────── */
.gs-nudge-banner {
    background: linear-gradient(90deg, #1e0a3c 0%, #040110 100%);
    border: 1px solid rgba(124, 58, 237, 0.3);
    padding: 3rem;
    border-radius: 12px;
    margin: 6rem 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
}

.gs-nudge-text {
    font-family: var(--font-display);
    font-size: 1.25rem;
    text-transform: uppercase;
}

/* ─── RESPONSIVE ───────────────────────────────────────────── */
@media (max-width: 1024px) {
    .gs-module-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 480px) {
    .gs-learning-hero {
        padding: 4rem 1rem 2rem;
    }

    .gs-hero-title {
        font-size: clamp(2rem, 8vw, 2.5rem);
    }

    .gs-hero-ctas {
        flex-direction: column !important;
        gap: 1rem !important;
    }

    .gs-nudge-banner {
        padding: 2rem 1.5rem;
    }

    .gs-module-card {
        padding: 1.5rem;
    }
}

@media (max-width: 768px) {
    .gs-nudge-banner {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 600px) {
    .gs-module-grid {
        grid-template-columns: 1fr;
    }

    .gs-learning-hero {
        padding: 6rem 1rem 3rem;
    }

    .gs-tabs {
        flex-wrap: nowrap;
        justify-content: flex-start;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scroll-snap-type: x mandatory;
        padding-bottom: 0.5rem;
    }

    .gs-tab-btn {
        white-space: nowrap;
        scroll-snap-align: start;
    }
}

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

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