/* ============================================
   SARKIN — Luxury Brand & Real Estate Advisory
   Aesthetic: Aesop meets Four Seasons
   Typography: Cormorant Garamond + Inter
   ============================================ */

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

:root {
    --color-bg: #FAFAF8;
    --color-bg-dark: #0F0F0F;
    --color-bg-warm: #F5F3EF;
    --color-text: #1A1A1A;
    --color-text-light: #6B6B6B;
    --color-text-inverse: #FAFAF8;
    --color-accent: #8B7355;
    --color-border: #E0DDD7;
    --color-border-dark: #2A2A2A;

    --font-display: 'Cormorant Garamond', 'Georgia', serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 2rem;
    --space-lg: 4rem;
    --space-xl: 6rem;
    --space-2xl: 10rem;

    --container: 1200px;
    --ease: cubic-bezier(0.25, 0, 0.15, 1);
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    font-weight: 300;
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.7;
    overflow-x: hidden;
}

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

a {
    color: inherit;
    text-decoration: none;
}

strong {
    font-weight: 500;
}

em {
    font-style: italic;
}

.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 var(--space-md);
}

/* --- Section Label --- */
.section-label {
    font-family: var(--font-body);
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: var(--space-md);
}

.section-title {
    font-family: var(--font-display);
    font-weight: 300;
    font-size: clamp(1.8rem, 3.5vw, 2.8rem);
    line-height: 1.2;
    letter-spacing: -0.01em;
    color: var(--color-text);
}

/* --- Navigation --- */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(250, 250, 248, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid transparent;
    transition: border-color 0.4s var(--ease), background 0.4s var(--ease);
}

.nav.scrolled {
    border-bottom-color: var(--color-border);
}

.nav-inner {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 var(--space-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.nav-logo {
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.35em;
    text-transform: uppercase;
    color: var(--color-text);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 1.5px;
    background: var(--color-text);
    transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    list-style: none;
}

.nav-links a {
    font-size: 0.8rem;
    font-weight: 400;
    letter-spacing: 0.05em;
    color: var(--color-text-light);
    transition: color 0.3s var(--ease);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--color-accent);
    transition: width 0.3s var(--ease);
}

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

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

.nav-cta {
    color: var(--color-text) !important;
    font-weight: 500 !important;
}

/* --- Hero --- */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: calc(72px + var(--space-xl)) var(--space-md) var(--space-xl);
    position: relative;
}

.hero-inner {
    max-width: var(--container);
    margin: 0 auto;
    width: 100%;
}

.hero-label {
    font-family: var(--font-body);
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: var(--space-lg);
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.8s var(--ease) 0.2s forwards;
}

.hero-title {
    font-family: var(--font-display);
    font-weight: 300;
    font-size: clamp(3rem, 8vw, 7rem);
    line-height: 1.05;
    letter-spacing: -0.02em;
    color: var(--color-text);
    margin-bottom: var(--space-lg);
    opacity: 0;
    transform: translateY(30px);
    animation: fadeUp 1s var(--ease) 0.4s forwards;
}

.hero-subtitle {
    font-family: var(--font-body);
    font-size: clamp(0.95rem, 1.2vw, 1.1rem);
    font-weight: 300;
    line-height: 1.8;
    color: var(--color-text-light);
    max-width: 600px;
    margin-bottom: var(--space-lg);
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.8s var(--ease) 0.7s forwards;
}

.hero-actions {
    display: flex;
    gap: var(--space-sm);
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.8s var(--ease) 0.9s forwards;
}

.hero-scroll {
    position: absolute;
    bottom: var(--space-lg);
    left: var(--space-md);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    opacity: 0;
    animation: fadeUp 0.8s var(--ease) 1.2s forwards;
}

.hero-scroll span {
    font-size: 0.65rem;
    font-weight: 500;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-text-light);
}

.hero-scroll-line {
    width: 48px;
    height: 1px;
    background: var(--color-border);
    position: relative;
    overflow: hidden;
}

.hero-scroll-line::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--color-accent);
    animation: scrollLine 2s var(--ease) infinite;
}

/* --- Buttons --- */
.btn {
    display: inline-block;
    font-family: var(--font-body);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 16px 36px;
    border: none;
    cursor: pointer;
    transition: all 0.4s var(--ease);
}

.btn-primary {
    background: var(--color-bg-dark);
    color: var(--color-text-inverse);
}

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

.btn-outline {
    background: transparent;
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

.btn-outline:hover {
    border-color: var(--color-text);
}

/* --- Marquee --- */
.marquee-section {
    padding: var(--space-md) 0;
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
    overflow: hidden;
}

.marquee-track {
    display: flex;
    width: max-content;
}

.marquee-content {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    animation: marquee 25s linear infinite;
    white-space: nowrap;
    padding-right: var(--space-md);
}

.marquee-content span {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 300;
    letter-spacing: 0.05em;
    color: var(--color-text-light);
}

.marquee-dot {
    color: var(--color-accent) !important;
}

/* --- About --- */
.about {
    padding: var(--space-2xl) 0;
}

.about-grid {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: var(--space-lg);
}

.about-label-col {
    padding-top: 0.3rem;
}

.about-content .section-title {
    margin-bottom: var(--space-lg);
}

.about-text {
    margin-bottom: var(--space-xl);
}

.about-text p {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--color-text-light);
    margin-bottom: var(--space-md);
}

.about-text p:last-child {
    margin-bottom: 0;
}

.about-stats {
    display: flex;
    gap: var(--space-xl);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--color-border);
}

.stat {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.stat-number {
    font-family: var(--font-display);
    font-size: 2.4rem;
    font-weight: 300;
    line-height: 1;
    color: var(--color-text);
}

.stat-label {
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-text-light);
}

/* --- Services --- */
.services {
    padding: var(--space-2xl) 0;
    background: var(--color-bg-warm);
}

.services-header {
    max-width: 600px;
    margin-bottom: var(--space-xl);
}

.services-header .section-label {
    margin-bottom: var(--space-sm);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--color-border);
}

.service-card {
    background: var(--color-bg-warm);
    padding: var(--space-lg);
    transition: background 0.4s var(--ease);
}

.service-card:hover {
    background: var(--color-bg);
}

.service-number {
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 400;
    color: var(--color-accent);
    display: block;
    margin-bottom: var(--space-md);
}

.service-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 400;
    line-height: 1.3;
    margin-bottom: var(--space-md);
    color: var(--color-text);
}

.service-desc {
    font-size: 0.9rem;
    line-height: 1.8;
    color: var(--color-text-light);
    margin-bottom: var(--space-md);
}

.service-details {
    list-style: none;
    padding-top: var(--space-md);
    border-top: 1px solid var(--color-border);
}

.service-details li {
    font-size: 0.8rem;
    font-weight: 400;
    color: var(--color-text);
    padding: 8px 0;
    border-bottom: 1px solid rgba(0,0,0,0.04);
    position: relative;
    padding-left: 16px;
}

.service-details li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    width: 4px;
    height: 1px;
    background: var(--color-accent);
}

.service-details li:last-child {
    border-bottom: none;
}

/* --- Track Record --- */
.track-record {
    padding: var(--space-2xl) 0;
    background: var(--color-bg-dark);
    color: var(--color-text-inverse);
}

.track-record .section-label {
    color: var(--color-accent);
}

.track-record .section-title {
    color: var(--color-text-inverse);
    margin-bottom: var(--space-xl);
}

.track-header {
    max-width: 600px;
}

.track-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1px;
    background: var(--color-border-dark);
}

.track-item {
    background: var(--color-bg-dark);
    padding: var(--space-lg);
}

.track-item h3 {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 400;
    margin-bottom: var(--space-sm);
    color: var(--color-text-inverse);
}

.track-item p {
    font-size: 0.85rem;
    line-height: 1.8;
    color: rgba(250, 250, 248, 0.55);
}

/* --- Approach --- */
.approach {
    padding: var(--space-2xl) 0;
}

.approach-grid {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: var(--space-lg);
}

.approach-label-col {
    padding-top: 0.3rem;
}

.approach-content .section-title {
    margin-bottom: var(--space-lg);
}

.approach-text {
    font-size: 1.05rem;
    line-height: 1.9;
    color: var(--color-text-light);
    max-width: 700px;
    margin-bottom: var(--space-md);
}

.approach-text:last-child {
    margin-bottom: 0;
}

/* --- Contact --- */
.contact {
    padding: var(--space-2xl) 0;
    background: var(--color-bg-warm);
}

.contact-inner {
    max-width: 700px;
}

.contact-title {
    font-family: var(--font-display);
    font-weight: 300;
    font-size: clamp(2.5rem, 5vw, 4rem);
    line-height: 1.1;
    letter-spacing: -0.01em;
    color: var(--color-text);
    margin-bottom: var(--space-md);
}

.contact-text {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--color-text-light);
    margin-bottom: var(--space-xl);
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
}

.contact-link {
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 400;
    color: var(--color-text);
    transition: color 0.3s var(--ease);
    display: inline-block;
}

.contact-link:hover {
    color: var(--color-accent);
}

.contact-locations {
    display: flex;
    gap: var(--space-lg);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--color-border);
}

.contact-locations span {
    font-size: 0.75rem;
    font-weight: 400;
    letter-spacing: 0.05em;
    color: var(--color-text-light);
}

/* --- Footer --- */
.footer {
    padding: var(--space-lg) 0 var(--space-md);
    border-top: 1px solid var(--color-border);
}

.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-lg);
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.footer-logo {
    font-family: var(--font-body);
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.35em;
    text-transform: uppercase;
}

.footer-tagline {
    font-size: 0.75rem;
    color: var(--color-text-light);
    padding-left: var(--space-md);
    border-left: 1px solid var(--color-border);
}

.footer-links {
    display: flex;
    gap: var(--space-md);
}

.footer-links a {
    font-size: 0.8rem;
    font-weight: 400;
    color: var(--color-text-light);
    transition: color 0.3s var(--ease);
}

.footer-links a:hover {
    color: var(--color-text);
}

.footer-bottom {
    padding-top: var(--space-md);
    border-top: 1px solid var(--color-border);
}

.footer-bottom span {
    font-size: 0.7rem;
    color: var(--color-text-light);
}

/* --- Animations --- */
@keyframes fadeUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scrollLine {
    0% { left: -100%; }
    100% { left: 100%; }
}

@keyframes marquee {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* --- Scroll Reveal --- */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}

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

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 1024px) {
    .about-grid,
    .approach-grid {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }

    .about-label-col,
    .approach-label-col {
        padding-top: 0;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .track-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    :root {
        --space-xl: 4rem;
        --space-2xl: 6rem;
    }

    /* Mobile nav */
    .nav-toggle {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: 0;
        width: 100%;
        height: 100vh;
        background: var(--color-bg);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: var(--space-lg);
        transform: translateX(100%);
        transition: transform 0.5s var(--ease);
    }

    .nav-links.open {
        transform: translateX(0);
    }

    .nav-links a {
        font-size: 1.2rem;
        color: var(--color-text);
    }

    .nav-links a::after {
        display: none;
    }

    .nav-toggle.active span:first-child {
        transform: rotate(45deg) translate(3px, 3px);
    }

    .nav-toggle.active span:last-child {
        transform: rotate(-45deg) translate(3px, -3px);
    }

    /* Hero mobile */
    .hero {
        padding-top: calc(72px + var(--space-lg));
    }

    .hero-title {
        font-size: clamp(2.4rem, 10vw, 4rem);
    }

    .hero-actions {
        flex-direction: column;
    }

    .hero-actions .btn {
        text-align: center;
    }

    .hero-scroll {
        display: none;
    }

    /* Stats mobile */
    .about-stats {
        flex-direction: column;
        gap: var(--space-md);
    }

    /* Track record mobile */
    .track-grid {
        grid-template-columns: 1fr;
    }

    /* Contact mobile */
    .contact-locations {
        flex-direction: column;
        gap: var(--space-sm);
    }

    /* Footer mobile */
    .footer-inner {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-md);
    }

    .footer-brand {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-xs);
    }

    .footer-tagline {
        padding-left: 0;
        border-left: none;
    }
}

@media (max-width: 480px) {
    :root {
        --space-lg: 2.5rem;
        --space-xl: 3rem;
        --space-2xl: 4rem;
    }

    .container {
        padding: 0 var(--space-sm);
    }

    .service-card {
        padding: var(--space-md);
    }

    .track-item {
        padding: var(--space-md);
    }
}