/* ============================================
   THE SANCTUARY — Riverside Luxury Resort
   Design System: "The Contemplative Sanctuary"
   Creative North Star: "The Whispering Monolith"
   ============================================ */

/* --- CSS Custom Properties (Design Tokens) --- */
:root {
    /* Primary Palette */
    --primary: #173124;
    --primary-container: #2d4739;
    --on-primary: #ffffff;
    --on-primary-container: #98b5a3;
    --primary-fixed: #ccead6;
    --primary-fixed-dim: #b0cdbb;
    --on-primary-fixed: #062014;
    --on-primary-fixed-variant: #324c3e;

    /* Secondary Palette */
    --secondary: #506071;
    --secondary-container: #d3e4f8;
    --on-secondary: #ffffff;
    --on-secondary-container: #566677;
    --secondary-fixed: #d3e4f8;
    --secondary-fixed-dim: #b8c8db;

    /* Tertiary Palette */
    --tertiary: #4d1e02;
    --tertiary-container: #693315;
    --on-tertiary: #ffffff;
    --on-tertiary-container: #e99c76;
    --tertiary-fixed: #ffdbcb;
    --tertiary-fixed-dim: #ffb692;

    /* Surface & Background */
    --surface: #fcf9f5;
    --surface-dim: #dcdad6;
    --surface-bright: #fcf9f5;
    --surface-container-lowest: #ffffff;
    --surface-container-low: #f6f3ef;
    --surface-container: #f0ede9;
    --surface-container-high: #ebe8e4;
    --surface-container-highest: #e5e2de;
    --surface-variant: #e5e2de;
    --background: #fcf9f5;
    --on-surface: #1c1c19;
    --on-surface-variant: #424844;
    --on-background: #1c1c19;

    /* Utility Colors */
    --outline: #727973;
    --outline-variant: #c2c8c2;
    --error: #ba1a1a;
    --error-container: #ffdad6;
    --on-error: #ffffff;
    --inverse-surface: #31302e;
    --inverse-on-surface: #f3f0ec;
    --inverse-primary: #b0cdbb;
    --surface-tint: #496455;

    /* Typography */
    --font-headline: 'Newsreader', serif;
    --font-body: 'Manrope', sans-serif;
    --font-label: 'Manrope', sans-serif;

    /* Transitions */
    --transition-slow: 500ms ease;
    --transition-medium: 300ms ease;
    --transition-fast: 150ms ease;

    /* Z-index Scale */
    --z-nav: 50;
    --z-overlay: 40;
    --z-modal: 60;
    --z-content: 10;
}

/* --- Base Reset & Typography --- */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    background-color: var(--surface);
    color: var(--on-surface);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

::selection {
    background-color: var(--primary-fixed);
    color: var(--on-primary-fixed);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition-medium);
}

button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
}

input {
    font-family: inherit;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-headline);
    font-weight: 400;
    line-height: 1.1;
}

/* --- Utility Classes --- */
.container {
    max-width: 1536px;
    margin: 0 auto;
    padding: 0 3rem;
}

@media (max-width: 768px) {
    .container {
        padding: 0 1.5rem;
    }
}

.font-headline { font-family: var(--font-headline); }
.font-body { font-family: var(--font-body); }
.font-label { font-family: var(--font-label); }

.label-text {
    font-family: var(--font-label);
    font-size: 0.625rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
}

.serif-italic {
    font-family: var(--font-headline);
    font-style: italic;
}

.tracking-widest { letter-spacing: 0.2em; }
.tracking-wider { letter-spacing: 0.15em; }

/* --- Material Symbols --- */
.material-symbols-outlined {
    font-variation-settings: 'FILL' 0, 'wght' 300, 'GRAD' 0, 'opsz' 24;
    vertical-align: middle;
}

/* --- Navigation --- */
.nav-bar {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: var(--z-nav);
    background-color: rgba(252, 249, 245, 0.7);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    transition: background-color var(--transition-slow), box-shadow var(--transition-medium);
}

.nav-bar.scrolled {
    background-color: rgba(252, 249, 245, 0.92);
    box-shadow: 0 1px 0 var(--outline-variant);
}

.nav-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 3rem;
    max-width: 1536px;
    margin: 0 auto;
}

.nav-brand {
    font-family: var(--font-headline);
    font-size: 1.5rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--primary);
    font-weight: 400;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 3rem;
    list-style: none;
}

.nav-links a {
    font-family: var(--font-headline);
    font-style: italic;
    font-size: 1.125rem;
    letter-spacing: -0.02em;
    color: var(--secondary);
    transition: color var(--transition-slow);
    padding-bottom: 0.25rem;
    border-bottom: 2px solid transparent;
}

.nav-links a:hover {
    color: var(--primary);
}

.nav-links a.active {
    color: var(--tertiary);
    border-bottom-color: var(--tertiary);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.btn-inquire {
    font-family: var(--font-label);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--primary);
    border-bottom: 1px solid var(--outline-variant);
    padding-bottom: 0.25rem;
    transition: all var(--transition-medium);
}

.btn-inquire:hover {
    border-bottom-color: var(--primary);
}

.nav-menu-toggle {
    color: var(--primary);
    font-size: 1.5rem;
    display: none;
}

/* Mobile Navigation */
.mobile-menu {
    position: fixed;
    inset: 0;
    z-index: var(--z-modal);
    background-color: rgba(23, 49, 36, 0.95);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-slow);
}

.mobile-menu.open {
    opacity: 1;
    pointer-events: all;
}

.mobile-menu a {
    font-family: var(--font-headline);
    font-style: italic;
    font-size: 2.5rem;
    color: var(--surface);
    transition: color var(--transition-medium);
}

.mobile-menu a:hover {
    color: var(--tertiary-fixed);
}

.mobile-menu-close {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    color: var(--surface);
    font-size: 2rem;
    cursor: pointer;
}

/* --- Buttons --- */
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background-color: var(--primary);
    color: var(--on-primary);
    padding: 1.25rem 3rem;
    border-radius: 0.375rem;
    font-family: var(--font-label);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    transition: background-color var(--transition-medium);
}

.btn-primary:hover {
    background-color: var(--primary-container);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    border: 1px solid var(--outline-variant);
    color: var(--primary);
    padding: 1.25rem 3rem;
    border-radius: 0.375rem;
    font-family: var(--font-label);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    transition: all var(--transition-medium);
}

.btn-secondary:hover {
    background-color: var(--surface-container-low);
}

.btn-tertiary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background-color: var(--tertiary);
    color: var(--on-tertiary);
    padding: 1.25rem 3rem;
    border-radius: 0.375rem;
    font-family: var(--font-label);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    transition: opacity var(--transition-medium);
}

.btn-tertiary:hover {
    opacity: 0.9;
}

.btn-outline-light {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: #fff;
    padding: 1.25rem 3rem;
    border-radius: 0.375rem;
    font-family: var(--font-label);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    transition: all var(--transition-medium);
}

.btn-outline-light:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.text-link {
    display: inline-flex;
    align-items: center;
    gap: 1rem;
    color: var(--tertiary);
    font-family: var(--font-label);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
}

.text-link .line {
    display: inline-block;
    width: 3rem;
    height: 1px;
    background-color: var(--tertiary);
    transition: width var(--transition-medium);
}

.text-link:hover .line {
    width: 5rem;
}

/* --- Footer --- */
.site-footer {
    background-color: var(--surface-container-low);
    padding: 6rem 3rem;
}

.footer-inner {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem;
    max-width: 1536px;
    margin: 0 auto;
}

.footer-brand {
    font-family: var(--font-headline);
    font-style: italic;
    font-size: 1.125rem;
    color: var(--primary);
    margin-bottom: 2rem;
}

.footer-address {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--secondary);
    line-height: 2;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer-links-title {
    font-size: 0.625rem;
    text-transform: uppercase;
    letter-spacing: 0.3em;
    color: var(--secondary);
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.footer-links a {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--secondary);
    transition: all var(--transition-medium);
}

.footer-links a:hover {
    text-decoration: underline;
    text-decoration-color: var(--tertiary);
    text-underline-offset: 8px;
}

.footer-newsletter-title {
    font-family: var(--font-headline);
    font-style: italic;
    font-size: 1.25rem;
    color: var(--primary);
    margin-bottom: 2rem;
}

.footer-email-form {
    position: relative;
}

.footer-email-input {
    width: 100%;
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--outline-variant);
    padding: 1rem 0;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--on-surface);
    outline: none;
    transition: border-color var(--transition-medium);
}

.footer-email-input:focus {
    border-bottom-color: var(--primary);
}

.footer-email-input::placeholder {
    color: var(--outline);
}

.footer-email-submit {
    position: absolute;
    right: 0;
    bottom: 1rem;
    color: var(--primary);
}

.footer-copyright {
    font-size: 0.625rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--outline);
    margin-top: 2rem;
}

.footer-socials {
    display: flex;
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.footer-socials .material-symbols-outlined {
    color: var(--primary);
    cursor: pointer;
    transition: opacity var(--transition-medium);
}

.footer-socials .material-symbols-outlined:hover {
    opacity: 0.7;
}

/* --- Section Backgrounds --- */
.bg-surface { background-color: var(--surface); }
.bg-surface-low { background-color: var(--surface-container-low); }
.bg-surface-high { background-color: var(--surface-container-high); }
.bg-primary-dark { background-color: var(--primary); color: var(--on-primary); }
.bg-tertiary-dark { background-color: var(--tertiary); color: var(--on-tertiary); }

/* --- Hero Sections --- */
.hero-fullscreen {
    position: relative;
    height: 100vh;
    width: 100%;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-fullscreen .hero-bg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-fullscreen .hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, rgba(23, 49, 36, 0.2), rgba(23, 49, 36, 0.4));
    z-index: 1;
}

.hero-fullscreen .hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: var(--surface);
    max-width: 56rem;
    padding: 0 1.5rem;
}

/* --- Cards & Bento Grids --- */
.bento-grid {
    display: grid;
    gap: 1.5rem;
}

.bento-card {
    position: relative;
    overflow: hidden;
    border-radius: 0.25rem;
}

.bento-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 1s ease;
}

.bento-card:hover img {
    transform: scale(1.1);
}

.bento-card .card-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(23, 49, 36, 0.6), transparent);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 2rem;
}

.bento-card .card-overlay h3,
.bento-card .card-overlay h4 {
    color: var(--surface);
    font-style: italic;
}

.bento-card .card-overlay p {
    color: rgba(252, 249, 245, 0.8);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-top: 0.5rem;
}

/* --- Asymmetric Image Clip --- */
.asymmetric-clip {
    clip-path: polygon(0% 0%, 100% 5%, 100% 100%, 0% 95%);
}

/* --- Glassmorphism Panels --- */
.glass-panel {
    background: rgba(252, 249, 245, 0.1);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 0.75rem;
    padding: 3rem;
}

/* --- Scroll Animations --- */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.reveal-left {
    opacity: 0;
    transform: translateX(-40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.reveal-right {
    opacity: 0;
    transform: translateX(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* --- Prefers Reduced Motion --- */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    .reveal, .reveal-left, .reveal-right {
        opacity: 1;
        transform: none;
    }
    html { scroll-behavior: auto; }
}

/* --- Responsive --- */
@media (max-width: 1024px) {
    .nav-links { display: none; }
    .nav-menu-toggle { display: block; }
    .nav-inner { padding: 1rem 1.5rem; }
    .footer-inner { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .btn-inquire { display: none; }
    h1 { font-size: 3rem; }
    h2 { font-size: 2.5rem; }
}

/* --- Bounce Animation for Scroll Indicator --- */
@keyframes bounceDown {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(8px); }
}

.bounce-down {
    animation: bounceDown 2s ease infinite;
}

/* --- Image Grayscale Hover --- */
.img-grayscale {
    filter: grayscale(100%);
    transition: filter 0.7s ease;
}

.img-grayscale:hover {
    filter: grayscale(0%);
}

/* --- Expandable Panel Hover --- */
.expand-panel {
    flex: 1;
    transition: flex 1s ease;
}

.expand-panel:hover {
    flex: 1.5;
}

/* --- Stat Counter Animation --- */
.stat-number {
    font-family: var(--font-headline);
    font-style: italic;
}