/* ── Base & Utilities ── */
html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    overflow-x: hidden;
}

::selection {
    background: rgba(13, 148, 136, 0.2);
    color: #042f2e;
}

/* ── Header / Navigation ── */
#site-header {
    background: transparent;
}

#site-header.scrolled {
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.06), 0 4px 20px rgba(0, 0, 0, 0.04);
}

.header-logo-text {
    transition: color 0.3s ease;
}

#site-header:not(.scrolled) .header-logo-text {
    color: #ffffff;
}

#site-header.scrolled .header-logo-text {
    color: #0f172a;
}

.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1.5px;
    background: #0d9488;
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 100%;
}

/* ── Mobile Menu ── */
#mobile-menu.open {
    opacity: 1;
    pointer-events: all;
}

.line-1 {
    transform: translateY(-6px) rotate(45deg);
}

.line-2 {
    opacity: 0;
}

.line-3 {
    transform: translateY(6px) rotate(-45deg);
    width: 5rem;
}

/* ── Hero ── */
.hero-eyebrow {
    opacity: 0;
    animation: fadeUp 0.8s ease forwards;
    animation-delay: 0.3s;
}

.hero-headline {
    opacity: 0;
    animation: fadeUp 0.8s ease forwards;
    animation-delay: 0.5s;
}

.hero-subtitle {
    opacity: 0;
    animation: fadeUp 0.8s ease forwards;
    animation-delay: 0.7s;
}

.hero-ctas {
    opacity: 0;
    animation: fadeUp 0.8s ease forwards;
    animation-delay: 0.9s;
}

@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(24px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ── Scroll Reveal ── */
.reveal {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1),
                transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

.reveal[data-reveal-delay="1"] { transition-delay: 0.1s; }
.reveal[data-reveal-delay="2"] { transition-delay: 0.2s; }
.reveal[data-reveal-delay="3"] { transition-delay: 0.3s; }
.reveal[data-reveal-delay="4"] { transition-delay: 0.4s; }
.reveal[data-reveal-delay="5"] { transition-delay: 0.5s; }

@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(32px);
    }
}

/* ── Section Typography ── */
.section-eyebrow {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.section-title {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.section-desc {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.section-eyebrow,
.reveal.section-title,
.reveal.section-desc {
    opacity: 1;
    transform: translateY(0);
}

@media (prefers-reduced-motion: no-preference) {
    .reveal.section-eyebrow,
    .reveal.section-title,
    .reveal.section-desc {
        opacity: 0;
        transform: translateY(16px);
    }
}

/* ── Intro Stats ── */
.intro-stat-number {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal .intro-stat-number {
    opacity: 1;
    transform: translateY(0);
}

@media (prefers-reduced-motion: no-preference) {
    .reveal .intro-stat-number {
        opacity: 0;
        transform: translateY(20px);
    }
}

/* ── Residence Cards ── */
.residence-card {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1),
                transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

.residence-card.revealed {
    opacity: 1;
    transform: translateY(0);
}

.tag {
    display: inline-block;
    background: #f1f5f9;
    color: #475569;
    font-size: 0.75rem;
    font-weight: 500;
    padding: 0.35rem 0.75rem;
    border-radius: 9999px;
    letter-spacing: 0.02em;
}

/* ── Amenity Items ── */
.amenity-item {
    opacity: 0;
    transform: translateX(-16px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal .amenity-item {
    opacity: 1;
    transform: translateX(0);
}

@media (prefers-reduced-motion: no-preference) {
    .reveal .amenity-item {
        opacity: 0;
        transform: translateX(-16px);
    }
}

/* ── Neighborhood Cards ── */
.neighborhood-card {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1),
                transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

.neighborhood-card.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* ── Contact Form ── */
#contact-form input,
#contact-form select,
#contact-form textarea {
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

#contact-form input:focus,
#contact-form select:focus,
#contact-form textarea:focus {
    box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.1);
}

/* ── Scroll Indicator ── */
.scroll-indicator {
    animation: scrollBounce 2s ease-in-out infinite;
}

@keyframes scrollBounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(8px); }
}

/* ── Utility ── */
@media (max-width: 767px) {
    .scroll-indicator {
        display: none;
    }
}