/* ===== About Us Page Styles ===== */
/* Relies on shared.css for variables, navbar, footer, and base styles */

/* ---------- Hero Section ---------- */
.about-hero {
    padding: 80px 2rem 60px;
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 72px;
    align-items: center;
}

.about-hero-content .eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--primary-color);
    background: rgba(67, 97, 238, 0.1);
    padding: 6px 18px;
    border-radius: 99px;
    margin-bottom: 24px;
}

.eyebrow-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--primary-color);
    flex-shrink: 0;
    animation: pulse-dot 2s ease infinite;
}

@keyframes pulse-dot {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.6); opacity: 0.5; }
}

.about-hero-content h1 {
    font-size: 3.2rem;
    line-height: 1.1;
    letter-spacing: -2px;
    font-weight: 800;
    margin-bottom: 20px;
}

.about-hero-content h1 .accent {
    background: var(--gradient-2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-style: normal;
}

.about-hero-content p {
    font-size: 1rem;
    line-height: 1.78;
    color: var(--text-secondary);
    max-width: 420px;
}

/* ---------- Stat Tiles ---------- */
.stat-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.stat-tile {
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.4);
    padding: 28px 24px;
    transition: transform 0.35s cubic-bezier(0.25, 0.8, 0.25, 1), box-shadow 0.35s;
    box-shadow:
        6px 6px 14px rgba(0, 0, 0, 0.07),
        -6px -6px 14px rgba(255, 255, 255, 0.8);
}

.stat-tile:hover {
    transform: translateY(-5px);
    box-shadow:
        8px 8px 20px rgba(67, 97, 238, 0.12),
        -6px -6px 14px rgba(255, 255, 255, 0.9);
}

.stat-tile.wide {
    grid-column: span 2;
    background: var(--gradient-2);
    border: none;
    box-shadow: 0 8px 32px rgba(67, 97, 238, 0.25);
}

.stat-tile.wide:hover {
    box-shadow: 0 12px 40px rgba(67, 97, 238, 0.35);
}

.stat-num {
    font-size: 2.6rem;
    font-weight: 800;
    letter-spacing: -2px;
    margin-bottom: 4px;
}

.stat-label {
    font-size: 0.8rem;
    font-weight: 600;
}

.stat-sub {
    font-size: 0.82rem;
    margin-top: 10px;
    line-height: 1.55;
}

.stat-tile.wide .stat-num,
.stat-tile.wide .stat-label { color: #fff; }
.stat-tile.wide .stat-sub { color: rgba(255, 255, 255, 0.55); }

.stat-tile:not(.wide) .stat-num { color: var(--primary-color); }
.stat-tile:not(.wide) .stat-label { color: var(--text-secondary); }

/* ---------- Content Area ---------- */
.about-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem 80px;
}

/* ---------- Section Headers ---------- */
.section-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 32px;
}

.section-tag {
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    padding: 6px 16px;
    border-radius: 99px;
    white-space: nowrap;
}

.tag-primary {
    background: rgba(67, 97, 238, 0.1);
    color: var(--primary-color);
}

.tag-warning {
    background: var(--warning-light);
    color: #b45309;
}

.tag-success {
    background: var(--success-light);
    color: #166534;
}

.section-line {
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, var(--border-color), transparent);
}

/* ---------- PI Card ---------- */
.pi-wrap { margin-bottom: 72px; }

.pi-card {
    background: rgba(255, 255, 255, 0.55);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-radius: 24px;
    border: 1px solid rgba(255, 255, 255, 0.4);
    display: grid;
    grid-template-columns: 340px 1fr;
    overflow: hidden;
    box-shadow:
        8px 8px 24px rgba(0, 0, 0, 0.06),
        -8px -8px 24px rgba(255, 255, 255, 0.8);
    transition: box-shadow 0.4s, transform 0.4s;
}

.pi-card:hover {
    transform: translateY(-4px);
    box-shadow:
        10px 10px 32px rgba(67, 97, 238, 0.14),
        -8px -8px 24px rgba(255, 255, 255, 0.9);
}

.pi-left {
    background: linear-gradient(155deg, rgba(67, 97, 238, 0.08) 0%, rgba(67, 97, 238, 0.15) 100%);
    padding: 56px 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 20px;
    position: relative;
    overflow: hidden;
}

.pi-left::before {
    content: '∞';
    position: absolute;
    top: -30px;
    right: -20px;
    font-size: 12rem;
    font-weight: 700;
    color: rgba(67, 97, 238, 0.06);
    pointer-events: none;
    line-height: 1;
}

.pi-avatar {
    width: 136px;
    height: 136px;
    border-radius: 50%;
    background: #fff;
    border: 4px solid #fff;
    box-shadow: 0 8px 32px rgba(67, 97, 238, 0.18);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.8rem;
    font-weight: 700;
    color: var(--primary-color);
    overflow: hidden;
    flex-shrink: 0;
}

.pi-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.pi-badge {
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--primary-color);
    background: rgba(67, 97, 238, 0.1);
    padding: 5px 16px;
    border-radius: 99px;
}

.pi-name {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.4px;
    color: var(--dark-color);
}

.pi-socials {
    display: flex;
    gap: 10px;
}

.icon-btn {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.8);
    border: 1px solid rgba(67, 97, 238, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    cursor: pointer;
    text-decoration: none;
    transition: all 0.25s ease;
    box-shadow: 2px 2px 6px rgba(0, 0, 0, 0.05);
}

.icon-btn:hover {
    background: var(--primary-color);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(67, 97, 238, 0.3);
}

.icon-btn svg {
    width: 16px;
    height: 16px;
}

.pi-right {
    padding: 52px 52px 52px 48px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.pi-quote {
    font-size: 1.2rem;
    font-style: italic;
    line-height: 1.65;
    color: var(--dark-color);
    margin-bottom: 28px;
    padding-left: 20px;
    border-left: 3px solid var(--primary-color);
}

.pi-bio {
    font-size: 0.95rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 32px;
    font-weight: 400;
}

.chips {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.chip {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 6px 14px;
    border-radius: 10px;
    background: rgba(67, 97, 238, 0.08);
    color: var(--primary-color);
    border: 1px solid rgba(67, 97, 238, 0.12);
    transition: all 0.2s;
}

.chip:hover {
    background: rgba(67, 97, 238, 0.15);
    transform: translateY(-1px);
}

/* ---------- Fellows ---------- */
.fellows-wrap { margin-bottom: 72px; }

.fellows-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.fellow-card {
    background: rgba(255, 255, 255, 0.55);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.4);
    padding: 32px 28px;
    display: flex;
    gap: 22px;
    align-items: flex-start;
    transition: transform 0.35s cubic-bezier(0.25, 0.8, 0.25, 1);
    box-shadow:
        6px 6px 14px rgba(0, 0, 0, 0.06),
        -6px -6px 14px rgba(255, 255, 255, 0.8);
}

.fellow-card:hover {
    transform: translateY(-6px);
    box-shadow:
        8px 8px 24px rgba(67, 97, 238, 0.12),
        -6px -6px 14px rgba(255, 255, 255, 0.9);
}

.fellow-av {
    width: 72px;
    height: 72px;
    border-radius: 18px;
    flex-shrink: 0;
    overflow: hidden;
    border: 2px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: #b45309;
    background: var(--warning-light);
}

.fellow-av img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.role-badge {
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 1.2px;
    text-transform: uppercase;
    color: #b45309;
    background: var(--warning-light);
    padding: 3px 10px;
    border-radius: 99px;
    display: inline-block;
    margin-bottom: 8px;
}

.fellow-card h3 {
    font-size: 1.1rem;
    font-weight: 800;
    letter-spacing: -0.3px;
    margin-bottom: 8px;
}

.fellow-card p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.7;
    font-weight: 400;
}

/* ---------- Staff Grid ---------- */
.staff-wrap { margin-bottom: 72px; }

.staff-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.staff-card {
    background: rgba(255, 255, 255, 0.55);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.4);
    padding: 36px 24px 28px;
    text-align: center;
    transition: transform 0.35s cubic-bezier(0.25, 0.8, 0.25, 1);
    position: relative;
    overflow: hidden;
    box-shadow:
        6px 6px 14px rgba(0, 0, 0, 0.06),
        -6px -6px 14px rgba(255, 255, 255, 0.8);
}

.staff-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-2);
    opacity: 0;
    transition: opacity 0.3s;
}

.staff-card:hover::after { opacity: 1; }

.staff-card:hover {
    transform: translateY(-6px);
    box-shadow:
        8px 8px 24px rgba(67, 97, 238, 0.12),
        -6px -6px 14px rgba(255, 255, 255, 0.9);
}

.staff-av {
    width: 88px;
    height: 88px;
    border-radius: 50%;
    margin: 0 auto 18px;
    border: 3px solid var(--border-color);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    font-weight: 700;
    color: #166534;
    background: var(--success-light);
}

.staff-av img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.staff-role {
    font-size: 0.68rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    color: #166534;
    background: var(--success-light);
    padding: 3px 10px;
    border-radius: 99px;
    display: inline-block;
    margin-bottom: 10px;
}

.staff-card h3 {
    font-size: 1rem;
    font-weight: 800;
    margin-bottom: 10px;
    letter-spacing: -0.2px;
}

.staff-card p {
    font-size: 0.84rem;
    color: var(--text-secondary);
    line-height: 1.7;
    font-weight: 400;
}

/* ---------- Philosophy Section ---------- */
.philo-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.philo-left {
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.4);
    padding: 48px 44px;
    box-shadow:
        6px 6px 14px rgba(0, 0, 0, 0.06),
        -6px -6px 14px rgba(255, 255, 255, 0.8);
}

.philo-left h2 {
    font-size: 1.55rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    margin-bottom: 36px;
}

.philo-item {
    display: flex;
    gap: 18px;
    margin-bottom: 28px;
}

.philo-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.15rem;
}

.philo-icon.i1 { background: rgba(67, 97, 238, 0.1); }
.philo-icon.i2 { background: rgba(76, 201, 240, 0.15); }
.philo-icon.i3 { background: var(--success-light); }

.philo-item h4 {
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 5px;
}

.philo-item p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.65;
    font-weight: 400;
}

.philo-right {
    background: var(--dark-color);
    border-radius: 20px;
    padding: 48px 44px;
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
}

.math-bg {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 8rem;
    font-weight: 700;
    color: rgba(255, 255, 255, 0.04);
    letter-spacing: -4px;
    line-height: 1;
    flex-direction: column;
    pointer-events: none;
    overflow: hidden;
}

.glow {
    position: absolute;
    top: 40%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 280px;
    height: 280px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(67, 97, 238, 0.25) 0%, transparent 70%);
    pointer-events: none;
    animation: glow-pulse 4s ease-in-out infinite alternate;
}

@keyframes glow-pulse {
    from { opacity: 0.6; transform: translate(-50%, -50%) scale(0.9); }
    to   { opacity: 1;   transform: translate(-50%, -50%) scale(1.1); }
}

.philo-right h3 {
    position: relative;
    z-index: 1;
    font-size: 1.8rem;
    font-weight: 800;
    color: #fff;
    letter-spacing: -0.8px;
    line-height: 1.25;
    margin-bottom: 12px;
}

.philo-right p {
    position: relative;
    z-index: 1;
    font-size: 0.88rem;
    color: rgba(255, 255, 255, 0.5);
    line-height: 1.72;
    font-weight: 300;
}

.math-pills {
    position: relative;
    z-index: 1;
    margin-top: 28px;
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.math-pill {
    background: rgba(255, 255, 255, 0.07);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 99px;
    padding: 6px 16px;
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.55);
    font-style: italic;
    transition: all 0.25s;
}

.math-pill:hover {
    background: rgba(67, 97, 238, 0.2);
    border-color: rgba(67, 97, 238, 0.4);
    color: rgba(255, 255, 255, 0.85);
}

/* ---------- Scroll Reveal Animations ---------- */
.about-animate {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                transform 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    will-change: opacity, transform;
}

.about-animate.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* ---------- Responsive ---------- */
@media (max-width: 992px) {
    .about-hero {
        grid-template-columns: 1fr;
        padding: 60px 2rem 48px;
        gap: 36px;
    }

    .about-hero-content h1 {
        font-size: 2.4rem;
    }

    .pi-card {
        grid-template-columns: 1fr;
    }

    .fellows-grid,
    .staff-grid,
    .philo-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .about-hero {
        padding: 40px 1.5rem 32px;
    }

    .about-content {
        padding: 0 1.5rem 60px;
    }

    .about-hero-content h1 {
        font-size: 2rem;
        letter-spacing: -1px;
    }

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

    .stat-tile.wide {
        grid-column: span 1;
    }

    .pi-left {
        padding: 36px 24px;
    }

    .pi-right {
        padding: 32px 24px;
    }

    .philo-left,
    .philo-right {
        padding: 32px 24px;
    }
}

@media (max-width: 480px) {
    .about-hero {
        padding: 28px 1rem 24px;
    }

    .about-content {
        padding: 0 1rem 48px;
    }

    .about-hero-content h1 {
        font-size: 1.75rem;
        letter-spacing: -0.5px;
    }

    .stat-num {
        font-size: 2rem;
    }

    .pi-name {
        font-size: 1.2rem;
    }

    .fellow-card {
        padding: 20px 16px;
        gap: 14px;
    }

    .fellow-av {
        width: 56px;
        height: 56px;
        font-size: 1.2rem;
    }

    .staff-card {
        padding: 24px 16px 20px;
    }
}

/* ===== Gonit Ongon 2.0 de-slop ===== glass + neumorphism removed; blue
   tints + gradient-clip text → emerald. Role tints (warm/green) kept. */
.about-hero-content h1 .accent { background: none; -webkit-text-fill-color: var(--color-accent); color: var(--color-accent); }
.about-hero-content .eyebrow, .tag-primary { background: var(--color-accent-soft); color: var(--color-accent-active); }
.eyebrow-dot { background: var(--color-accent); }
.stat-tile, .fellow-card, .staff-card, .philo-left, .pi-card {
    background: var(--color-surface);
    -webkit-backdrop-filter: none; backdrop-filter: none;
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
}
.stat-tile:hover, .fellow-card:hover, .staff-card:hover, .pi-card:hover { box-shadow: var(--shadow-pop); transform: translateY(-4px); }
.stat-tile.wide { background: var(--color-accent); border: none; box-shadow: var(--shadow-lg); }
.pi-left { background: var(--color-accent-soft); }
.pi-left::before { color: rgba(5,150,105,0.08); }
.pi-avatar { color: var(--color-accent); box-shadow: var(--shadow-sm); }
.pi-badge, .chip { background: var(--color-accent-soft); color: var(--color-accent-active); border-color: var(--color-border); }
.chip:hover { background: var(--emerald-200); }
.pi-quote { border-left-color: var(--color-accent); }
.icon-btn { background: var(--color-surface); border: 1px solid var(--color-border); color: var(--color-accent); box-shadow: none; }
.icon-btn:hover { background: var(--color-accent); color: #fff; box-shadow: var(--shadow-sm); }
.philo-icon.i1 { background: var(--color-accent-soft); }
.philo-right { background: var(--color-header); }
.glow { background: radial-gradient(circle, rgba(16,185,129,0.22) 0%, transparent 70%); }
.math-pill:hover { background: rgba(16,185,129,0.2); border-color: rgba(16,185,129,0.4); }
.section-line { background: linear-gradient(90deg, var(--color-border), transparent); }
.staff-card::after { background: var(--color-accent); }