/* Explain: Styles for luxury navigation, buttons, cards, and form elements. */
.luxury-nav {
    backdrop-filter: blur(18px);
    background: rgba(20, 20, 20, 0.95);
    box-shadow: 0 1px 0 rgba(255, 255, 255, 0.05);
}

.brand-mark {
    display: inline-grid;
    place-items: center;
    width: 2.5rem;
    height: 2.5rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 4px;
    color: #ffffff;
    background: var(--primary-color);
    font-family: var(--font-heading);
}

.mobile-menu-dialog {
    width: min(calc(100% - 2rem), 28rem);
    max-width: none;
    padding: 0;
    border: 0;
    border-radius: 1.5rem;
    background: transparent;
    color: var(--text-color);
}

.mobile-menu-dialog::backdrop {
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(10px);
}

.mobile-menu-panel {
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 1.5rem;
    background: #1f1f1f;
    box-shadow: 0 28px 80px rgba(0, 0, 0, 0.5);
    padding: 1.5rem;
}

.mobile-menu-link {
    display: flex;
    min-height: 3.25rem;
    align-items: center;
    justify-content: space-between;
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 0.75rem;
    background: rgba(255, 255, 255, 0.02);
    color: var(--diamond-white);
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    padding: 0.85rem 1.25rem;
    transition: all 220ms ease;
}

.mobile-menu-link:hover,
.mobile-menu-link:focus-visible {
    border-color: var(--accent-color);
    background: rgba(212, 175, 55, 0.05);
    transform: translateY(-1px);
}

.btn-luxury {
    background: var(--diamond-white);
    color: var(--primary-color);
    border: 1px solid var(--diamond-white);
    transition: all 220ms ease;
}

.btn-luxury:hover,
.btn-luxury:focus-visible {
    background: var(--accent-color);
    border-color: var(--accent-color);
    color: #ffffff;
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(212, 175, 55, 0.2);
}

.btn-ghost-luxury {
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--diamond-white);
    background: transparent;
    transition: all 220ms ease;
}

.btn-ghost-luxury:hover,
.btn-ghost-luxury:focus-visible {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

.radiant-card {
    border: 1px solid rgba(0, 0, 0, 0.05);
    background: var(--surface-color);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.03);
    transition: transform 300ms ease, box-shadow 300ms ease;
}

.radiant-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.06);
}

.form-panel {
    background: #ffffff;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
}

.luxury-input {
    min-height: 3.4rem;
    border: 1px solid rgba(0, 0, 0, 0.15);
    background: #fafafa;
    color: #1a1a1a;
    outline: none;
    border-radius: 0.5rem;
}

.luxury-input::placeholder {
    color: rgba(0, 0, 0, 0.4);
}

.luxury-input:focus {
    background: #ffffff;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 1px var(--accent-color);
}

.sticky-consultation {
    position: fixed;
    right: 1rem;
    bottom: 1rem;
    z-index: 50;
    transition: opacity 220ms ease, transform 220ms ease, visibility 220ms ease;
}

.sticky-consultation.cta-hidden {
    visibility: hidden;
    opacity: 0;
    transform: translateY(1rem);
}

.sticky-contact-icon {
    display: none;
}

.sticky-consultation.cta-compact .sticky-full-cta,
.sticky-consultation.cta-compact .sticky-full-close {
    display: none;
}

.sticky-consultation.cta-compact .sticky-contact-icon {
    display: inline-flex;
}

@media (min-width: 768px) {
    .sticky-consultation {
        display: none;
    }
}