:root {
    /* Color Palette */
    --bg-primary: hsl(40, 20%, 98%);
    --bg-secondary: hsl(40, 15%, 94%);
    --text-primary: hsl(0, 0%, 15%);
    --text-secondary: hsl(0, 0%, 40%);
    --accent: hsl(36, 40%, 40%);
    --accent-light: hsl(36, 40%, 60%);
    --white: #ffffff;
    --black: #000000;

    /* Typography */
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Inter', sans-serif;

    /* Spacing */
    --p-gutter: 2rem;
    --p-section: 8rem;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* Typography */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 400;
    line-height: 1.2;
}

h1 { font-size: clamp(3rem, 8vw, 5rem); }
h2 { font-size: clamp(2rem, 5vw, 3.5rem); }
h3 { font-size: 1.75rem; }

p {
    font-size: 1.1rem;
    font-weight: 300;
}

.lead {
    font-size: 1.4rem;
    margin-bottom: 2rem;
}

/* Layout Utilities */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--p-gutter);
}

.full-bleed {
    width: 100vw;
    position: relative;
    left: 50%;
    right: 50%;
    margin-left: -50vw;
    margin-right: -50vw;
}

.text-center { text-align: center; }

/* Header */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 2rem 4rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
    transition: all 0.4s ease;
}

header.scrolled {
    padding: 1.5rem 4rem;
    background: rgba(253, 253, 251, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
}

.logo {
    display: flex;
    flex-direction: column;
    letter-spacing: 0.2rem;
}

.logo-main {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 700;
}

.logo-sub {
    font-size: 0.6rem;
    font-weight: 400;
    margin-top: -5px;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 2.5rem;
}

nav a {
    text-decoration: none;
    color: var(--text-primary);
    font-size: 0.75rem;
    letter-spacing: 0.15rem;
    font-weight: 400;
    transition: color 0.3s ease;
}

nav a:hover {
    color: var(--accent);
}

.cta-link {
    border: 1px solid var(--text-primary);
    padding: 0.8rem 1.5rem;
    transition: all 0.3s ease !important;
}

.cta-link:hover {
    background: var(--text-primary);
    color: var(--white) !important;
}

/* Hero Section */
#hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    text-align: center;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    z-index: -1;
}

#hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.3);
    z-index: -1;
}

.hero-content h1 {
    margin-bottom: 1.5rem;
}

.hero-content p {
    font-size: 1.2rem;
    letter-spacing: 0.1rem;
    max-width: 600px;
    margin: 0 auto;
}

.scroll-indicator {
    position: absolute;
    bottom: 3rem;
    left: 50%;
    transform: translateX(-50%);
}

.scroll-indicator .line {
    width: 1px;
    height: 80px;
    background: rgba(255,255,255,0.3);
    position: relative;
    overflow: hidden;
}

.scroll-indicator .line::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--white);
    animation: scroll-anim 2s infinite ease-in-out;
}

@keyframes scroll-anim {
    0% { transform: translateY(-100%); }
    100% { transform: translateY(100%); }
}

/* Projects Section */
#projects {
    padding: var(--p-section) 0;
}

.section-header {
    margin-bottom: 4rem;
    display: flex;
    justify-content: center;
}

.section-title {
    position: relative;
    padding-bottom: 1rem;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 1px;
    background: var(--accent);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 3rem;
}

.project-card {
    position: relative;
    overflow: hidden;
    aspect-ratio: 1 / 1.2;
    cursor: pointer;
}

.project-card.large {
    grid-column: span 2;
    aspect-ratio: 16 / 9;
}

.project-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 1s cubic-bezier(0.19, 1, 0.22, 1);
}

.project-card:hover img {
    transform: scale(1.05);
}

.project-info {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 3rem;
    background: linear-gradient(to top, rgba(0,0,0,0.7), transparent);
    color: var(--white);
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.5s ease;
}

.project-card:hover .project-info {
    opacity: 1;
    transform: translateY(0);
}

/* About Section */
.alternate-bg {
    background-color: var(--bg-secondary);
    padding: var(--p-section) 0;
}

.split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6rem;
    align-items: center;
}

.split-image img {
    width: 100%;
    height: auto;
    filter: drop-shadow(20px 20px 0 var(--accent-light));
}

.text-link {
    display: inline-block;
    margin-top: 2rem;
    text-decoration: none;
    color: var(--accent);
    font-weight: 500;
    letter-spacing: 0.1rem;
    transition: transform 0.3s ease;
}

.text-link:hover {
    transform: translateX(10px);
}

/* Services Section */
#services {
    padding: var(--p-section) 0;
}

.services-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem;
    margin-top: 4rem;
}

.service-item {
    padding: 3rem;
    background: var(--white);
    border: 1px solid rgba(0,0,0,0.05);
    transition: all 0.4s ease;
}

.service-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.05);
}

.service-item .number {
    font-family: var(--font-heading);
    font-size: 3rem;
    color: var(--accent-light);
    opacity: 0.3;
    display: block;
    margin-bottom: 1rem;
}

.service-item h3 {
    margin-bottom: 1rem;
}

/* CTA Section */
#cta {
    height: 60vh;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    overflow: hidden;
}

.cta-content h2 {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
}

.button {
    display: inline-block;
    padding: 1.2rem 3rem;
    background: var(--white);
    color: var(--text-primary);
    text-decoration: none;
    font-size: 0.8rem;
    letter-spacing: 0.2rem;
    margin-top: 2.5rem;
    transition: all 0.3s ease;
}

.button:hover {
    background: var(--accent);
    color: var(--white);
}

/* Footer */
footer {
    background: var(--bg-secondary);
    padding: 6rem 0 3rem;
    border-top: 1px solid rgba(0,0,0,0.05);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 4rem;
}

footer h4 {
    margin-bottom: 1.5rem;
    font-size: 1.2rem;
}

footer ul {
    list-style: none;
}

footer ul li {
    margin-bottom: 0.8rem;
}

footer a {
    text-decoration: none;
    color: var(--text-secondary);
    transition: color 0.3s ease;
}

footer a:hover {
    color: var(--accent);
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid rgba(0,0,0,0.1);
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Responsive */
@media (max-width: 1024px) {
    header { padding: 1.5rem 2rem; }
    .split { grid-template-columns: 1fr; gap: 3rem; }
    .services-list { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    nav {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background: var(--bg-primary);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 3rem;
        z-index: 999;
    }
    nav.mobile-open {
        display: flex;
    }
    nav ul {
        flex-direction: column;
        align-items: center;
        gap: 2.5rem;
    }
    nav a { font-size: 1rem; }
    .projects-grid { grid-template-columns: 1fr; }
    .project-card.large { aspect-ratio: 1/1; }
    .services-list { grid-template-columns: 1fr; }
}

/* Animations */
.reveal-text {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 1s ease, transform 1s cubic-bezier(0.19, 1, 0.22, 1);
}

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

.fade-in {
    opacity: 0;
    transition: opacity 1.5s ease 0.3s;
}

.fade-in.visible {
    opacity: 1;
}

/* Reveal (used on split-image, section-header, etc.) */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.9s ease, transform 0.9s cubic-bezier(0.19, 1, 0.22, 1);
}

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

/* Project card and service item entrance */
.project-card,
.service-item {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.19, 1, 0.22, 1), box-shadow 0.4s ease;
}

.project-card.visible,
.service-item.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Stagger children (JS adds 'visible' with delay) */
.stagger-child {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s cubic-bezier(0.19, 1, 0.22, 1);
}

.stagger-child.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Section header */
.section-header {
    opacity: 0;
    transition: opacity 0.8s ease;
}

.section-header.visible {
    opacity: 1;
}

/* ─── Custom Cursor ─────────────────────────────────── */
#cursor {
    position: fixed;
    width: 10px;
    height: 10px;
    background: var(--accent);
    border-radius: 50%;
    pointer-events: none;
    transform: translate(-50%, -50%);
    z-index: 9999;
    transition: width 0.2s ease, height 0.2s ease, background 0.2s ease;
    mix-blend-mode: multiply;
}

#cursor.cursor-grow {
    width: 48px;
    height: 48px;
    background: var(--accent-light);
}

#cursor-dot {
    position: fixed;
    width: 4px;
    height: 4px;
    background: var(--text-primary);
    border-radius: 50%;
    pointer-events: none;
    transform: translate(-50%, -50%);
    z-index: 10000;
}

/* ─── Hamburger Menu Toggle ─────────────────────────── */
.menu-toggle {
    display: none;
    cursor: pointer;
    flex-direction: column;
    gap: 6px;
    z-index: 1001;
    padding: 4px;
}

.menu-toggle span {
    display: block;
    width: 26px;
    height: 1.5px;
    background: var(--text-primary);
    transition: all 0.35s cubic-bezier(0.19, 1, 0.22, 1);
    transform-origin: center;
}

.menu-toggle.open span:nth-child(1) {
    transform: translateY(7.5px) rotate(45deg);
}

.menu-toggle.open span:nth-child(2) {
    transform: translateY(-7.5px) rotate(-45deg);
}

@media (max-width: 768px) {
    .menu-toggle { display: flex; }
}