/* ═══════════════════════════════════════════════════════════════
   LEARN - Menu Page
   ═══════════════════════════════════════════════════════════════ */

/* ───────────────────────────────────────────────────────────────
   Layout
   ─────────────────────────────────────────────────────────────── */
.learn-page {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: var(--space-3xl) var(--space-xl) var(--space-2xl);
}

/* ───────────────────────────────────────────────────────────────
   Hero
   ─────────────────────────────────────────────────────────────── */
.learn-hero {
    text-align: center;
    margin-bottom: var(--space-3xl);
    animation: fadeInUp 0.6s var(--ease-dramatic) backwards;
}

.learn-hero__label {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    color: var(--accent-yellow);
    letter-spacing: 0.06em;
    text-transform: uppercase;
    margin-bottom: var(--space-md);
}

.learn-hero__label i {
    font-size: var(--text-lg);
}

.learn-hero__title {
    font-family: var(--font-display);
    font-size: var(--text-4xl);
    font-weight: 900;
    letter-spacing: -0.04em;
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
}

.learn-hero__subtitle {
    font-family: var(--font-body);
    font-size: var(--text-lg);
    color: var(--text-secondary);
    max-width: 480px;
    margin: 0 auto;
    line-height: 1.6;
}

/* ───────────────────────────────────────────────────────────────
   Category
   ─────────────────────────────────────────────────────────────── */
.learn-category {
    margin-bottom: var(--space-2xl);
    animation: fadeInUp 0.6s var(--ease-dramatic) 0.15s backwards;
}

.learn-category__heading {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-family: var(--font-display);
    font-size: var(--text-xl);
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--text-primary);
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-sm);
    border-bottom: var(--border-thin) solid var(--border-subtle);
}

.learn-category__heading i {
    font-size: var(--text-2xl);
    color: var(--text-muted);
}

/* ───────────────────────────────────────────────────────────────
   Grid
   ─────────────────────────────────────────────────────────────── */
.learn-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--grid-gap);
}

/* ───────────────────────────────────────────────────────────────
   Section Card (reusable component styles)
   ─────────────────────────────────────────────────────────────── */
.section-card {
    position: relative;
    display: flex;
    flex-direction: column;
    padding: var(--space-xl);
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    border: var(--border-thin) solid var(--border-subtle);
    text-decoration: none;
    overflow: hidden;
    cursor: pointer;
    transition:
        border-color var(--transition-slow),
        box-shadow var(--transition-slower),
        transform var(--transition-base);
    animation: cardEntrance 0.8s var(--ease-dramatic) backwards;
    animation-delay: calc(var(--index, 0) * 0.1s + 0.3s);
}

.section-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(
        145deg,
        color-mix(in srgb, var(--accent) 8%, transparent) 0%,
        transparent 50%,
        color-mix(in srgb, var(--accent) 3%, transparent) 100%
    );
    opacity: 0;
    transition: opacity var(--transition-slower);
}

.section-card:hover {
    border-color: color-mix(in srgb, var(--accent) 40%, transparent);
    box-shadow:
        var(--shadow-lg),
        0 0 0 1px color-mix(in srgb, var(--accent) 20%, transparent),
        0 8px 70px -20px var(--accent);
    transform: translateY(-6px);
}

.section-card:hover::before {
    opacity: 1;
}

/* Card glow */
.section-card .card-glow {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(
        circle at center,
        color-mix(in srgb, var(--accent) 12%, transparent) 0%,
        transparent 50%
    );
    opacity: 0;
    transition: opacity var(--transition-slow);
    pointer-events: none;
}

.section-card:hover .card-glow {
    opacity: 1;
}

/* Shine effect */
.section-card .card-shine {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        105deg,
        transparent 40%,
        rgba(255, 255, 255, 0.02) 45%,
        rgba(255, 255, 255, 0.04) 50%,
        rgba(255, 255, 255, 0.02) 55%,
        transparent 60%
    );
    transform: translateX(-100%);
    transition: transform 0.7s ease;
    pointer-events: none;
}

.section-card:hover .card-shine {
    transform: translateX(100%);
}

/* Card content */
.section-card .card-content {
    position: relative;
    display: flex;
    flex-direction: column;
    flex: 1;
    z-index: 1;
}

.section-card .card-icon {
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    background: color-mix(in srgb, var(--accent) 10%, var(--bg-tertiary));
    margin-bottom: var(--space-lg);
    transition: all var(--transition-base);
    border: var(--border-thin) solid color-mix(in srgb, var(--accent) 15%, transparent);
    position: relative;
}

.section-card .card-icon::before {
    content: '';
    position: absolute;
    inset: -6px;
    border-radius: inherit;
    background: radial-gradient(circle, var(--accent), transparent 70%);
    opacity: 0;
    filter: blur(10px);
    transition: opacity var(--transition-slow);
    z-index: -1;
}

.section-card:hover .card-icon {
    background: color-mix(in srgb, var(--accent) 18%, var(--bg-tertiary));
    border-color: color-mix(in srgb, var(--accent) 30%, transparent);
    transform: scale(1.08) translateY(-2px);
}

.section-card:hover .card-icon::before {
    opacity: 0.3;
}

.section-card .card-icon i {
    font-size: 24px;
    color: var(--accent);
    transition: transform var(--transition-base);
}

.section-card:hover .card-icon i {
    transform: scale(1.05);
}

.section-card .card-text {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.section-card .card-title {
    font-family: var(--font-display);
    font-size: 1.35rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    color: var(--text-primary);
    margin-bottom: var(--space-xs);
    transition: color var(--transition-base);
}

.section-card:hover .card-title {
    color: var(--accent);
}

.section-card .card-subtitle {
    font-family: var(--font-body);
    font-size: var(--text-sm);
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Arrow indicator */
.section-card .card-arrow {
    position: absolute;
    top: var(--space-xl);
    right: var(--space-xl);
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    background: var(--bg-tertiary);
    border: var(--border-thin) solid var(--border-subtle);
    opacity: 0;
    transform: translateX(-10px);
    transition: var(--transition-base);
}

.section-card:hover .card-arrow {
    opacity: 1;
    transform: translateX(0);
}

.section-card .card-arrow i {
    font-size: 20px;
    color: var(--accent);
    transition: transform var(--transition-base);
}

.section-card:hover .card-arrow i {
    transform: translateX(3px);
}

/* ───────────────────────────────────────────────────────────────
   Animations
   ─────────────────────────────────────────────────────────────── */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes cardEntrance {
    from {
        opacity: 0;
        transform: translateY(24px) scale(0.97);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* ───────────────────────────────────────────────────────────────
   Ambient splashes (page-specific colors)
   ─────────────────────────────────────────────────────────────── */
.splash--yellow-1 {
    background: radial-gradient(circle, rgba(251, 191, 36, 0.08), transparent 70%);
    width: 600px;
    height: 600px;
    top: -10%;
    right: -5%;
    position: absolute;
}

.splash--yellow-2 {
    background: radial-gradient(circle, rgba(251, 191, 36, 0.05), transparent 70%);
    width: 500px;
    height: 500px;
    bottom: 10%;
    left: -8%;
    position: absolute;
}

.splash--green-1 {
    background: radial-gradient(circle, rgba(74, 222, 148, 0.06), transparent 70%);
    width: 550px;
    height: 550px;
    top: 30%;
    left: 20%;
    position: absolute;
}

.splash--green-2 {
    background: radial-gradient(circle, rgba(74, 222, 148, 0.04), transparent 70%);
    width: 400px;
    height: 400px;
    bottom: -5%;
    right: 15%;
    position: absolute;
}

/* ───────────────────────────────────────────────────────────────
   Responsive
   ─────────────────────────────────────────────────────────────── */
@media (max-width: 640px) {
    .learn-page {
        padding: var(--space-2xl) var(--space-md) var(--space-xl);
    }

    .learn-hero__title {
        font-size: var(--text-3xl);
    }

    .learn-grid {
        grid-template-columns: 1fr;
    }
}