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

body {
    overflow-x: hidden;
}

::selection {
    background-color: rgba(200, 149, 108, 0.3);
    color: #F9F2F4;
}

/* ===== Animations ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes scrollLine {
    0%, 100% {
        transform: scaleY(1);
        opacity: 0.5;
    }
    50% {
        transform: scaleY(0.5);
        transform-origin: bottom;
        opacity: 1;
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-40px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(40px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.animate-fade-in {
    animation: fadeIn 0.8s ease forwards;
}

/* ===== Scroll Reveal ===== */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    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-left {
    opacity: 0;
    transform: translateX(-40px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.reveal-right {
    opacity: 0;
    transform: translateX(40px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.reveal-scale {
    opacity: 0;
    transform: scale(0.9);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-scale.revealed {
    opacity: 1;
    transform: scale(1);
}

/* ===== Header ===== */
#header {
    backdrop-filter: blur(0px);
    -webkit-backdrop-filter: blur(0px);
}

#header.scrolled {
    background: rgba(22, 15, 21, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 1px 0 rgba(200, 149, 108, 0.1);
}

.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: linear-gradient(90deg, #C8956C, #EBC08A);
    transition: width 0.3s ease;
}

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

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

.mobile-link {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.4s ease, transform 0.4s ease, color 0.3s ease;
}

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

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

/* ===== Menu Button ===== */
.menu-line {
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

#menuBtn.active .menu-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

#menuBtn.active .menu-line:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

#menuBtn.active .menu-line:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
    width: 6;
}

/* ===== Room Cards ===== */
.room-card {
    transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.room-card:hover {
    transform: translateY(-8px);
}

/* ===== Amenity Cards ===== */
.amenity-card {
    transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.5s ease;
}

.amenity-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

/* ===== Input Focus ===== */
input:focus,
textarea:focus {
    box-shadow: 0 0 0 1px rgba(200, 149, 108, 0.2);
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #160F15;
}

::-webkit-scrollbar-thumb {
    background: #4A2C3E;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #C8956C;
}

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