/* Buttons -------------------------------------------------------------- */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-5);
    border-radius: var(--radius-pill);
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: var(--text-sm);
    line-height: 1;
    white-space: nowrap;
    border: 1px solid transparent;
    transition: background-color var(--dur-fast) var(--ease-out),
                border-color var(--dur-fast) var(--ease-out),
                color var(--dur-fast) var(--ease-out),
                transform var(--dur-fast) var(--ease-out),
                box-shadow var(--dur-fast) var(--ease-out);
}

.btn:hover {
    transform: translateY(-1px);
}

.btn:active {
    transform: translateY(0);
}

.btn--lg {
    padding: var(--space-4) var(--space-6);
    font-size: var(--text-base);
}

.btn--primary {
    background: var(--color-accent-500);
    color: var(--color-accent-contrast);
    box-shadow: var(--shadow-sm);
}

.btn--primary:hover {
    background: var(--color-accent-600);
    box-shadow: var(--shadow-md);
}

.btn--secondary {
    background: var(--color-surface);
    color: var(--color-navy-900);
    border-color: var(--color-border);
    box-shadow: var(--shadow-sm);
}

.btn--secondary:hover {
    border-color: var(--color-accent-500);
    color: var(--color-accent-600);
}

.btn--ghost {
    background: transparent;
    color: var(--color-navy-700);
}

.btn--ghost:hover {
    color: var(--color-accent-600);
}

/* Badges ----------------------------------------------------------------- */

.badge {
    display: inline-flex;
    align-items: center;
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-pill);
    font-size: var(--text-xs);
    font-weight: 600;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    background: var(--color-accent-100);
    color: var(--color-accent-700);
}

.badge--neutral {
    background: var(--color-surface-alt);
    color: var(--color-navy-700);
}

/* Cards -------------------------------------------------------------------- */

.card {
    background: var(--color-surface);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    padding: var(--space-6);
    max-width: 100%;
    /* Cards are almost always grid/flex items; without this a grid item
       refuses to shrink below its content's intrinsic width (default
       min-width: auto), so any wide content inside (e.g. a nowrap table)
       forces the whole row — and the page — wider than the viewport
       instead of scrolling inside its own wrapper. */
    min-width: 0;
    transition: box-shadow var(--dur-base) var(--ease-out), transform var(--dur-base) var(--ease-out);
}

.card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

/* Avatar (used by generated teacher initials, later phase) ----------------- */

.avatar {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    border-radius: var(--radius-pill);
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: var(--text-lg);
    color: #fff;
    flex-shrink: 0;
}

.avatar--lg {
    width: 96px;
    height: 96px;
    font-size: var(--text-2xl);
}

/* Icon buttons ------------------------------------------------------------- */

.icon-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-pill);
    color: var(--color-navy-700);
    transition: background-color var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out);
}

.icon-button:hover {
    background: var(--color-surface-alt);
    color: var(--color-accent-600);
}

.icon-button .icon {
    width: 20px;
    height: 20px;
}

/* Floating action buttons (WhatsApp, Messenger, ...) ------------------------- */

.fab-stack {
    position: fixed;
    /* env(safe-area-inset-*) keeps the stack clear of rounded corners and
       home-bar gesture areas on notched phones (requires
       viewport-fit=cover on the viewport meta tag — see includes/header.php). */
    right: calc(var(--space-5) + env(safe-area-inset-right));
    bottom: calc(var(--space-5) + env(safe-area-inset-bottom));
    z-index: var(--z-fab);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-3);
}

.fab {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    border-radius: var(--radius-pill);
    color: #fff;
    box-shadow: var(--shadow-lg);
    transition: background-color var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out);
}

.fab:hover {
    transform: translateY(-2px);
}

.fab__icon {
    width: 28px;
    height: 28px;
}

.fab--whatsapp {
    background: var(--color-whatsapp);
}

.fab--whatsapp:hover {
    background: var(--color-whatsapp-dark);
}

.fab--messenger {
    background: var(--color-messenger);
}

.fab--messenger:hover {
    background: var(--color-messenger-dark);
}

@media (min-width: 600px) {
    .fab-stack {
        right: calc(var(--space-6) + env(safe-area-inset-right));
        bottom: calc(var(--space-6) + env(safe-area-inset-bottom));
    }
}

/* Feature card grid — icon + title + body. Generic/reusable: built for
   About's "Why IgnitED" 6-card grid, written so a future home "Why
   IgnitED" section can share it instead of duplicating the style. ------- */

.feature-grid {
    display: grid;
    gap: var(--space-5);
    grid-template-columns: 1fr;
}

.feature-card {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    padding: var(--space-6);
    background: var(--color-surface);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: box-shadow var(--dur-base) var(--ease-out), transform var(--dur-base) var(--ease-out);
}

.feature-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.feature-card__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background: var(--color-accent-100);
    color: var(--color-accent-600);
    flex-shrink: 0;
}

.feature-card__icon .icon {
    width: 24px;
    height: 24px;
}

.feature-card__title {
    font-size: var(--text-lg);
}

.feature-card__body {
    color: var(--color-navy-500);
    font-size: var(--text-sm);
}

@media (min-width: 600px) {
    .feature-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 900px) {
    .feature-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Icon-led list item — for About's "Teaching Philosophy" (visually
   distinct from the raised feature-card grid, so the page doesn't repeat
   the same card pattern three times in a row). ---------------------- */

.icon-list {
    display: grid;
    gap: var(--space-5);
}

.icon-list-item {
    display: flex;
    gap: var(--space-4);
    align-items: flex-start;
}

.icon-list-item__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: var(--radius-pill);
    background: var(--color-navy-900);
    color: #fff;
    flex-shrink: 0;
}

.icon-list-item__icon .icon {
    width: 20px;
    height: 20px;
}

.icon-list-item__title {
    font-family: var(--font-heading);
    font-weight: 700;
    margin-bottom: var(--space-1);
}

.icon-list-item__body {
    color: var(--color-navy-500);
    font-size: var(--text-sm);
}

@media (min-width: 600px) {
    .icon-list {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Quick fact strip — three short label/value pairs. ----------------------- */

.quick-facts {
    display: grid;
    gap: var(--space-4);
    grid-template-columns: 1fr;
}

.quick-fact {
    text-align: center;
    padding: var(--space-5);
    background: var(--color-surface-alt);
    border-radius: var(--radius-lg);
}

.quick-fact__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    margin-bottom: var(--space-3);
    border-radius: var(--radius-pill);
    background: var(--color-accent-100);
    color: var(--color-accent-600);
}

.quick-fact__icon .icon {
    width: 22px;
    height: 22px;
}

.quick-fact__label {
    font-size: var(--text-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--color-navy-500);
    margin-bottom: var(--space-1);
}

.quick-fact__value {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: var(--text-lg);
    color: var(--color-navy-900);
}

@media (min-width: 600px) {
    .quick-facts {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Nav links ------------------------------------------------------------------ */

.nav-link {
    display: inline-block;
    padding: var(--space-2) var(--space-3);
    font-weight: 600;
    font-size: var(--text-sm);
    color: var(--color-navy-700);
    border-radius: var(--radius-sm);
    transition: color var(--dur-fast) var(--ease-out);
    position: relative;
}

.nav-link:hover {
    color: var(--color-accent-600);
}

.nav-link[aria-current="page"] {
    color: var(--color-accent-600);
}