/* Explain: Styles for UI components like buttons, cards, and marquees. */
.site-header {
    position: relative;
    border-bottom: 1px solid var(--accent-line);
    background: var(--nav-bg);
    backdrop-filter: blur(16px);
    box-shadow: 0 10px 30px rgba(143, 110, 30, 0.06);
}

.site-header::before {
    content: "";
    position: absolute;
    inset-inline: 0;
    top: 0;
    height: 3px;
    background: var(--gold-gradient);
}

.nav-link {
    position: relative;
    padding-block: 0.45rem;
    font-family: var(--font-heading);
    font-weight: 700;
    transition: color 300ms ease;
}

.nav-link::after {
    content: "";
    position: absolute;
    inset-inline: 0;
    bottom: 0;
    height: 1px;
    background: var(--accent-deep);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 350ms ease;
}

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

.nav-link:hover::after {
    transform: scaleX(1);
}

.kicker {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    color: var(--accent-deep);
    font-family: var(--font-heading);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.3em;
    text-transform: uppercase;
}

.btn-accent,
.btn-ghost,
.btn-ink {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.65rem;
    min-height: 3.25rem;
    border-radius: 999px;
    padding: 0 2.2rem;
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    transition: transform 400ms cubic-bezier(0.22, 0.61, 0.36, 1), background 400ms ease, color 400ms ease, box-shadow 400ms ease, border-color 400ms ease;
}

.btn-accent {
    border: 1px solid rgba(176, 141, 46, 0.4);
    background: var(--gold-gradient);
    color: #3A2C08;
    box-shadow: var(--shadow-button);
}

.btn-accent:hover {
    transform: translateY(-3px);
    box-shadow: 0 22px 44px rgba(217, 180, 74, 0.5);
}

.btn-ghost {
    border: 1px solid var(--accent-deep);
    background: transparent;
    color: var(--primary-color);
}

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

.btn-ink {
    background: var(--primary-color);
    color: #ffffff;
}

.btn-ink:hover {
    background: var(--text-color);
}

.marquee {
    overflow: hidden;
    background: var(--surface-2);
    border-block: 1px solid var(--border-color);
    padding-block: 1.1rem;
}

.marquee__track {
    display: flex;
    width: max-content;
    animation: marquee-scroll 30s linear infinite;
}

.marquee__item {
    display: inline-flex;
    align-items: center;
    gap: 0.7rem;
    padding-inline: 1.7rem;
    color: var(--primary-color);
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    white-space: nowrap;
}

.marquee__item i {
    color: var(--accent-deep);
}

@keyframes marquee-scroll {
    from {
        transform: translateX(0);
    }
    to {
        transform: translateX(-50%);
    }
}

.service-card {
    position: relative;
    display: flex;
    flex-direction: column;
    border: 1px solid var(--border-color);
    border-radius: 1.4rem;
    background: #ffffff;
    padding: 2rem 1.8rem;
    transition: transform 450ms cubic-bezier(0.22, 0.61, 0.36, 1), box-shadow 450ms ease, border-color 450ms ease;
}

.service-card::after {
    content: "";
    position: absolute;
    inset-inline: 1.8rem;
    top: 0;
    height: 2px;
    border-radius: 999px;
    background: var(--gold-gradient);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 450ms ease;
}

.service-card:hover {
    transform: translateY(-8px);
    border-color: var(--accent-color);
    box-shadow: var(--shadow-card);
}

.service-card:hover::after {
    transform: scaleX(1);
}

.service-card__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 3.5rem;
    height: 3.5rem;
    border-radius: 50%;
    border: 1px solid var(--accent-line);
    background: var(--accent-soft);
    color: var(--primary-color);
    font-size: 1.35rem;
    transition: background 450ms ease, color 450ms ease, transform 450ms ease;
}

.service-card:hover .service-card__icon {
    background: var(--gold-gradient);
    color: #3A2C08;
    transform: rotate(-6deg) scale(1.05);
}

.service-card__num {
    font-family: var(--font-display);
    font-size: 2.2rem;
    font-weight: 700;
    line-height: 1;
    color: var(--border-color);
    transition: color 450ms ease;
}

.service-card:hover .service-card__num {
    color: var(--accent-deep);
}

.form-label {
    display: block;
    margin-bottom: 0.6rem;
    color: var(--text-muted);
    font-family: var(--font-heading);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

.form-status.success {
    color: var(--primary-color);
}

.form-status.error {
    color: #C0392B;
}

.mobile-book-bar {
    position: fixed;
    inset-inline: 0;
    bottom: 0;
    z-index: 45;
    border-top: 1px solid var(--accent-line);
    background: rgba(255, 255, 255, 0.97);
    padding: 0.85rem 1rem calc(0.85rem + env(safe-area-inset-bottom));
    backdrop-filter: blur(18px);
}

@media (prefers-reduced-motion: reduce) {
    .marquee__track {
        animation: none;
    }

    .project-card img,
    .service-card,
    .why-card,
    .process-step {
        transition: none;
    }
}