/* ============================================
   Hotel Royan — Premium Dark Luxury Styles
   ============================================ */

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    overflow-x: hidden;
}

::selection {
    background: rgba(196, 154, 60, 0.3);
    color: #f8f6f0;
}

/* ============================================
   Navigation
   ============================================ */
#navbar {
    background: transparent;
    transition: background 0.5s ease, backdrop-filter 0.5s ease, box-shadow 0.5s ease;
}

#navbar.scrolled {
    background: rgba(10, 31, 15, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 1px 0 rgba(196, 154, 60, 0.08);
}

.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: #c49a3c;
    transition: width 0.3s ease;
}

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

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

.mobile-link {
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

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

#mobile-menu.open .mobile-link:nth-child(1) { transition-delay: 0.05s; }
#mobile-menu.open .mobile-link:nth-child(2) { transition-delay: 0.1s; }
#mobile-menu.open .mobile-link:nth-child(3) { transition-delay: 0.15s; }
#mobile-menu.open .mobile-link:nth-child(4) { transition-delay: 0.2s; }
#mobile-menu.open .mobile-link:nth-child(5) { transition-delay: 0.25s; }

/* ============================================
   Hero Gradient Orbs
   ============================================ */
.hero-gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
    animation: orbFloat 20s ease-in-out infinite;
}

.orb-1 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, #1b5a30 0%, transparent 70%);
    top: -10%;
    right: -5%;
    animation-delay: 0s;
}

.orb-2 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, #0d2b16 0%, transparent 70%);
    bottom: -5%;
    left: -5%;
    animation-delay: -7s;
}

.orb-3 {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, #c49a3c 0%, transparent 70%);
    top: 40%;
    left: 50%;
    transform: translateX(-50%);
    opacity: 0.15;
    animation-delay: -14s;
}

@keyframes orbFloat {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(30px, -20px) scale(1.05); }
    50% { transform: translate(-20px, 30px) scale(0.95); }
    75% { transform: translate(20px, 20px) scale(1.02); }
}

/* Scroll Line Animation */
.scroll-line {
    width: 100%;
    height: 40%;
    background: linear-gradient(to bottom, transparent, #c49a3c);
    animation: scrollDown 2s ease-in-out infinite;
}

@keyframes scrollDown {
    0% { transform: translateY(-100%); opacity: 0; }
    50% { opacity: 1; }
    100% { transform: translateY(300%); opacity: 0; }
}

/* ============================================
   Section Labels
   ============================================ */
.section-label {
    display: block;
    text-align: center;
    color: #c49a3c;
    font-size: 11px;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    font-weight: 500;
    margin-bottom: 0.75rem;
}

/* ============================================
   Room Cards
   ============================================ */
.room-card {
    position: relative;
    overflow: hidden;
}

.room-card::after {
    content: '';
    position: absolute;
    inset: 0;
    border: 1px solid rgba(196, 154, 60, 0);
    transition: border-color 0.4s ease;
    pointer-events: none;
    z-index: 2;
}

.room-card:hover::after {
    border-color: rgba(196, 154, 60, 0.3);
}

/* ============================================
   Experience Cards
   ============================================ */
.experience-card {
    padding: 1rem;
}

/* ============================================
   Location Cards
   ============================================ */
.location-card {
    transition: border-color 0.3s ease, transform 0.3s ease;
}

.location-card:hover {
    transform: translateY(-4px);
}

/* ============================================
   Scroll Reveal (Progressive Enhancement)
   Only activates when JS is available and
   user prefers motion.
   ============================================ */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(30px);
        transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
    }

    .reveal.revealed {
        opacity: 1;
        transform: translateY(0);
    }

    .reveal-delay-1 { transition-delay: 0.1s; }
    .reveal-delay-2 { transition-delay: 0.2s; }
    .reveal-delay-3 { transition-delay: 0.3s; }
    .reveal-delay-4 { transition-delay: 0.4s; }
}

/* ============================================
   Form Styles
   ============================================ */
input:focus,
textarea:focus {
    border-color: rgba(196, 154, 60, 0.5) !important;
}

input::placeholder,
textarea::placeholder {
    color: rgba(248, 246, 240, 0.15);
}

/* Date inputs */
input[type="date"] {
    color-scheme: dark;
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 768px) {
    .font-serif {
        line-height: 1.1;
    }
}

/* ============================================
   Focus Visible
   ============================================ */
*:focus-visible {
    outline: 2px solid #c49a3c;
    outline-offset: 2px;
}

/* ============================================
   Print
   ============================================ */
@media print {
    #navbar, .scroll-indicator {
        display: none;
    }
    
    body {
        background: white;
        color: black;
    }
}