*, *::before, *::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    margin: 0;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ─── NAVBAR ─── */
.nav-scrolled {
    background: rgba(240, 244, 248, 0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(10, 22, 40, 0.06);
    box-shadow: 0 1px 0 rgba(10, 22, 40, 0.04);
}

#navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 50;
    transition: background 0.4s ease, box-shadow 0.4s ease, border-color 0.4s ease;
    background: transparent;
    border-bottom: 1px solid transparent;
}

.nav-link {
    position: relative;
    color: rgba(10, 22, 40, 0.55);
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    text-decoration: none;
    transition: color 0.3s ease;
    padding: 0.25rem 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background: #5eead4;
    transition: width 0.3s ease;
}

.nav-link:hover {
    color: rgba(10, 22, 40, 0.9);
}

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

#navbar.scrolled .nav-link {
    color: rgba(10, 22, 40, 0.55);
}

#navbar.scrolled .nav-link:hover {
    color: rgba(10, 22, 40, 0.9);
}

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

#mobile-menu.closed {
    opacity: 0;
    pointer-events: none;
}

.mobile-link {
    text-decoration: none;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.4s ease, transform 0.4s ease, color 0.3s ease;
}

#mobile-menu.open .mobile-link {
    opacity: 1;
    transform: translateY(0);
}

#mobile-menu.open .mobile-link:nth-child(1) { transition-delay: 0.1s; }
#mobile-menu.open .mobile-link:nth-child(2) { transition-delay: 0.15s; }
#mobile-menu.open .mobile-link:nth-child(3) { transition-delay: 0.2s; }
#mobile-menu.open .mobile-link:nth-child(4) { transition-delay: 0.25s; }
#mobile-menu.open .mobile-link:nth-child(5) { transition-delay: 0.3s; }

/* ─── HERO ─── */
.hero-gradient {
    background: linear-gradient(135deg, #0A1628 0%, #0d1f3c 25%, #112a4a 50%, #0f2540 75%, #0A1628 100%);
}

.hero-pattern {
    background-image: 
        linear-gradient(rgba(94, 234, 212, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(94, 234, 212, 0.05) 1px, transparent 1px);
    background-size: 60px 60px;
}

/* ─── REVEAL ANIMATIONS ─── */
.reveal-up,
.reveal-left,
.reveal-right {
    opacity: 1;
    transform: none;
    transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.reveal-up {
    transform: translateY(0);
}

.reveal-left {
    transform: translateX(0);
}

.reveal-right {
    transform: translateX(0);
}

@media (prefers-reduced-motion: no-preference) {
    .reveal-up {
        opacity: 0;
        transform: translateY(30px);
    }
    .reveal-left {
        opacity: 0;
        transform: translateX(-30px);
    }
    .reveal-right {
        opacity: 0;
        transform: translateX(30px);
    }

    .reveal-up.revealed,
    .reveal-left.revealed,
    .reveal-right.revealed {
        opacity: 1;
        transform: translateY(0) translateX(0);
    }
}

/* Hero specific reveals — always visible */
.reveal-up.hero-eyebrow {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal-up.hero-title {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.8s ease 0.1s, transform 0.8s ease 0.1s;
}

.reveal-up.hero-subtitle {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.8s ease 0.2s, transform 0.8s ease 0.2s;
}

.reveal-up.hero-cta {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.8s ease 0.3s, transform 0.8s ease 0.3s;
}

/* ─── SECTION STYLES ─── */
.section-eyebrow {
    font-size: 0.7rem;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    font-weight: 600;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3.25rem);
    line-height: 1.1;
}

.section-line {
    transition: width 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.reveal-left.revealed .section-line {
    width: 4rem;
}

.section-body {
    color: #454d5a;
}

/* ─── ROOM CARDS ─── */
.room-card {
    transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.room-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 60px rgba(10, 22, 40, 0.08);
}

/* ─── FORM ─── */
.form-input {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    padding: 0.875rem 1rem;
    font-family: 'Inter', system-ui, sans-serif;
    font-size: 0.9rem;
    font-weight: 300;
    color: #0A1628;
    transition: border-color 0.3s ease, box-shadow 0.3s ease, background 0.3s ease;
    outline: none;
    width: 100%;
}

.form-input::placeholder {
    color: #9fb3c8;
}

.form-input:focus {
    border-color: #5eead4;
    box-shadow: 0 0 0 3px rgba(94, 234, 212, 0.12);
    background: #fff;
}

.form-group:focus-within label {
    color: #0d9488;
}

/* ─── BUTTONS ─── */
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    background: #5eead4;
    color: #0A1628;
    font-family: 'Inter', system-ui, sans-serif;
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.04em;
    border: none;
    border-radius: 100px;
    cursor: pointer;
    transition: background 0.3s ease, box-shadow 0.3s ease, transform 0.2s ease;
}

.btn-primary:hover {
    background: #8edfc4;
    box-shadow: 0 8px 30px rgba(94, 234, 212, 0.3);
    transform: translateY(-1px);
}

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

.btn-primary svg {
    transition: transform 0.3s ease;
}

.btn-primary:hover svg {
    transform: translateX(3px);
}

/* ─── SCROLLBAR ─── */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: #f0f4f8;
}

::-webkit-scrollbar-thumb {
    background: #bcccdc;
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: #9fb3c8;
}

/* ─── SELECTION ─── */
::selection {
    background: rgba(94, 234, 212, 0.25);
    color: #0A1628;
}