/* Explain: Styles for UI components like cards, buttons, and navigation. */
.site-header {
    transition: box-shadow 300ms ease;
}

.site-header.is-scrolled {
    box-shadow: 0 12px 34px rgba(12, 30, 58, 0.12);
}

.nav-link {
    color: var(--text-color);
    transition: color 300ms ease;
}

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

.section-kicker {
    display: inline-flex;
    align-items: center;
    gap: 0.7rem;
    color: var(--sage-dark);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

.section-kicker::before {
    display: inline-block;
    width: 2.2rem;
    height: 2px;
    background: var(--accent-color);
    content: "";
}

.glass-panel {
    border: 1px solid var(--glass-border);
    background: var(--glass-bg);
    box-shadow: var(--shadow-soft);
    backdrop-filter: blur(14px);
}

.service-card {
    border: 1px solid var(--border-color);
    border-radius: 1.4rem;
    background: #ffffff;
    padding: 2rem;
    transition: transform 300ms ease, border-color 300ms ease, box-shadow 300ms ease;
}

.service-card:hover {
    border-color: rgba(20, 48, 92, 0.4);
    box-shadow: 0 24px 60px rgba(12, 30, 58, 0.12);
    transform: translateY(-6px);
}

.service-icon,
.feature-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--secondary-color);
    color: var(--primary-color);
}

.service-icon {
    width: 3.6rem;
    height: 3.6rem;
    border-radius: 1rem;
    font-size: 1.4rem;
}

.feature-icon {
    width: 3rem;
    height: 3rem;
    border-radius: 999px;
    font-size: 1.15rem;
}

.feature-card {
    border: 1px solid var(--border-color);
    border-radius: 1.2rem;
    background: var(--surface-color);
    padding: 1.6rem;
}

.step-card {
    position: relative;
    border: 1px solid var(--border-color);
    border-radius: 1.4rem;
    background: #ffffff;
    padding: 1.8rem;
}

.step-number {
    display: inline-flex;
    width: 3rem;
    height: 3rem;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    background: var(--primary-color);
    color: #ffffff;
    font-family: var(--font-heading);
    font-weight: 700;
}

.course-card {
    display: flex;
    height: 100%;
    flex-direction: column;
    overflow: hidden;
    border: 1px solid var(--border-color);
    border-radius: 1.4rem;
    background: #ffffff;
    box-shadow: var(--shadow-soft);
    transition: transform 300ms ease, box-shadow 300ms ease;
}

.course-card:hover {
    box-shadow: 0 26px 60px rgba(12, 30, 58, 0.14);
    transform: translateY(-6px);
}

.course-card img {
    height: 100%;
    width: 100%;
    object-fit: cover;
    transition: transform 500ms ease;
}

.course-card:hover img {
    transform: scale(1.06);
}

.testimonial-card {
    border: 1px solid var(--border-color);
    border-radius: 1.4rem;
    background: #ffffff;
    padding: 2rem;
}

.faq-item {
    overflow: hidden;
    border: 1px solid var(--border-color);
    border-radius: 1.2rem;
    background: #ffffff;
}

.faq-item + .faq-item {
    margin-top: 0.85rem;
}

.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    cursor: pointer;
    list-style: none;
    padding: 1.15rem 1.4rem;
    color: var(--text-color);
    font-weight: 600;
}

.faq-question::-webkit-details-marker {
    display: none;
}

.faq-chevron {
    color: var(--accent-color);
    transition: transform 300ms ease;
}

.faq-item[open] .faq-chevron {
    transform: rotate(180deg);
}

.faq-answer {
    margin: 0;
    padding: 0 1.4rem 1.3rem;
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.9;
}

.info-tile {
    border: 1px solid var(--border-color);
    border-radius: 1.2rem;
    background: var(--surface-color);
    padding: 1.25rem;
}

a.info-tile {
    transition: border-color 300ms ease, transform 300ms ease;
}

a.info-tile:hover {
    border-color: var(--accent-color);
    transform: translateY(-2px);
}

.booking-form {
    border-radius: 1.4rem;
    padding: clamp(1.5rem, 4vw, 2.4rem);
}

.form-label {
    display: block;
    margin-bottom: 0.55rem;
    color: var(--text-color);
    font-size: 0.76rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.form-status.success {
    color: #12704A;
}

.form-status.error {
    color: #B4341F;
}

.price-card {
    display: flex;
    height: 100%;
    flex-direction: column;
    overflow: hidden;
    border: 1px solid var(--border-color);
    border-radius: 1.4rem;
    background: #ffffff;
    box-shadow: var(--shadow-soft);
    transition: transform 300ms ease, box-shadow 300ms ease;
}

.price-card:hover {
    box-shadow: 0 26px 60px rgba(12, 30, 58, 0.14);
    transform: translateY(-6px);
}

.price-card img {
    height: 100%;
    width: 100%;
    object-fit: cover;
}

.app-toast {
    position: fixed;
    inset-inline: 0;
    bottom: calc(5.5rem + env(safe-area-inset-bottom));
    z-index: 200;
    margin-inline: auto;
    width: max-content;
    max-width: 90vw;
    padding: 0.85rem 1.4rem;
    border-radius: 999px;
    background: var(--primary-color);
    color: #ffffff;
    font-size: 0.9rem;
    font-weight: 600;
    text-align: center;
    box-shadow: var(--shadow-button);
    opacity: 0;
    transform: translateY(1rem);
    pointer-events: none;
    transition: opacity 300ms ease, transform 300ms ease;
}

.app-toast.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.app-toast.is-error {
    background: #B4341F;
}

.cart-qty-btn {
    display: inline-flex;
    width: 2.25rem;
    height: 2.25rem;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-color);
    border-radius: 999px;
    background: var(--surface-color);
    color: var(--text-color);
    transition: background 300ms ease, color 300ms ease;
}

.cart-qty-btn:hover {
    background: var(--primary-color);
    color: #ffffff;
}

.cart-remove-btn {
    display: inline-flex;
    align-items: center;
    border: 0;
    background: transparent;
    color: #B4341F;
    font-size: 0.85rem;
    font-weight: 600;
}

.cart-remove-btn:hover {
    text-decoration: underline;
}

.mobile-action-bar {
    position: fixed;
    inset-inline: 0;
    bottom: 0;
    z-index: 45;
    display: flex;
    gap: 0.6rem;
    border-top: 1px solid var(--border-color);
    background: rgba(255, 255, 255, 0.92);
    padding: 0.8rem 1rem calc(0.8rem + env(safe-area-inset-bottom));
    backdrop-filter: blur(14px);
}

.preloader {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color), #0C1E3A);
    transition: opacity 500ms ease, visibility 500ms ease;
}

.preloader.is-hidden {
    visibility: hidden;
    opacity: 0;
    pointer-events: none;
}

.preloader-spinner {
    width: 46px;
    height: 46px;
    border: 3px solid rgba(255, 255, 255, 0.25);
    border-top-color: var(--accent-color);
    border-radius: 999px;
    animation: preloader-spin 0.8s linear infinite;
}

@keyframes preloader-spin {
    to {
        transform: rotate(360deg);
    }
}

@media (max-width: 767px) {
    .section-kicker::before {
        width: 1.6rem;
    }
}