/* ═══════════════════════════════════════════════
   KHASOMARI — Global Styles
   ═══════════════════════════════════════════════ */

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

:root {
    --bg: #fafaf8;
    --bg-warm: #f5f4f0;
    --bg-dark: #1a1a1a;
    --text: #1a1a1a;
    --text-secondary: #6b6560;
    --text-muted: #a09890;
    --text-light: #fafaf8;
    --accent: #1a1a1a;
    --border: #e8e5e0;
    --border-dark: #333;
    --serif: 'EB Garamond', Georgia, serif;
    --sans: 'Inter', -apple-system, sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    background: var(--bg);
    color: var(--text);
    font-family: var(--sans);
    font-weight: 300;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

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

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

/* ─── NAV ─── */
nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 1.5rem 3rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(250,250,248,0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
}

.nav-logo {
    font-family: var(--serif);
    font-size: 1.3rem;
    font-weight: 400;
    letter-spacing: 0.15em;
    color: var(--text);
}

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

.nav-links a {
    color: var(--text-secondary);
    font-size: 0.7rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    font-weight: 400;
    transition: color 0.3s;
}

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

.nav-hamburger {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.nav-hamburger span {
    display: block;
    width: 20px;
    height: 1.5px;
    background: var(--text);
    margin: 4px 0;
    transition: all 0.3s;
}

/* ─── BUTTONS ─── */
.btn {
    display: inline-block;
    padding: 0.75rem 2.2rem;
    font-size: 0.65rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    font-family: var(--sans);
    font-weight: 500;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

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

.btn-primary:hover {
    background: #333;
}

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

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

/* ─── SECTIONS ─── */
.section-label {
    font-size: 0.6rem;
    letter-spacing: 0.35em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.section-title {
    font-family: var(--serif);
    font-size: clamp(1.8rem, 3.5vw, 2.8rem);
    font-weight: 400;
    margin-bottom: 2rem;
    line-height: 1.25;
}

/* ─── PAGE HEADER ─── */
.page-header {
    padding: 10rem 3rem 4rem;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.page-header .section-title {
    margin-bottom: 1rem;
}

.page-header p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.8;
    max-width: 550px;
    margin: 0 auto;
}

/* ─── FOOTER ─── */
footer {
    padding: 4rem 3rem;
    text-align: center;
    border-top: 1px solid var(--border);
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--text-secondary);
    font-size: 0.7rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    transition: color 0.3s;
}

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

footer .copyright {
    font-size: 0.65rem;
    color: var(--text-muted);
    letter-spacing: 0.1em;
}

/* ─── ANIMATIONS ─── */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ─── RESPONSIVE ─── */
@media (max-width: 768px) {
    nav {
        padding: 1rem 1.5rem;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(250,250,248,0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 1.5rem;
        gap: 1.5rem;
        border-bottom: 1px solid var(--border);
    }

    .nav-links.open {
        display: flex;
    }

    .nav-hamburger {
        display: block;
    }

    .page-header {
        padding: 8rem 1.5rem 3rem;
    }

    footer {
        padding: 3rem 1.5rem;
    }
}