:root {
    --blue-primary: #2563EB;
    --blue-deep: #1E40AF;
    --blue-light: #DBEAFE;
    --blue-50: #EFF6FF;
    --green-shield: #4ADE80;
    --green-deep: #16A34A;
    --teal: #14B8A6;
    --orange-warn: #F59E0B;
    --red-expire: #EF4444;
    --gray-900: #111827;
    --gray-800: #1F2937;
    --gray-700: #374151;
    --gray-600: #4B5563;
    --gray-500: #6B7280;
    --gray-400: #9CA3AF;
    --gray-300: #D1D5DB;
    --gray-200: #E5E7EB;
    --gray-100: #F3F4F6;
    --gray-50: #F9FAFB;
    --white: #FFFFFF;
    --font-display: 'Playfair Display', Georgia, serif;
    --font-body: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    --radius-lg: 24px;
    --radius-md: 16px;
    --radius-sm: 12px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
    font-family: var(--font-body);
    color: var(--gray-800);
    background: var(--white);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* NAV */
nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 16px 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

nav.scrolled {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    padding: 10px 32px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--gray-900);
}

.nav-brand img {
    width: 36px;
    height: 36px;
    border-radius: 8px;
}

.nav-brand span {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1.25rem;
    letter-spacing: -0.02em;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
}

.nav-links a {
    text-decoration: none;
    color: var(--gray-600);
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.2s;
}

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

.lang-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 10px;
    border: 1px solid var(--gray-200);
    background: var(--white);
    cursor: pointer;
    transition: all 0.2s;
    font-size: 0;
}

.lang-toggle:hover {
    border-color: var(--blue-primary);
    background: var(--blue-50);
}

.lang-flag {
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--gray-700);
    letter-spacing: 0.02em;
}

/* FOOTER */
footer {
    padding: 64px 32px 32px;
    background: var(--gray-900);
    color: var(--gray-400);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-brand img {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    margin-bottom: 16px;
}

.footer-brand p {
    font-size: 0.85rem;
    line-height: 1.6;
    color: var(--gray-500);
    max-width: 280px;
}

.footer-col h4 {
    font-family: var(--font-display);
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 16px;
}

.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 10px; }

.footer-col a {
    color: var(--gray-500);
    text-decoration: none;
    font-size: 0.85rem;
    transition: color 0.2s;
}

.footer-col a:hover { color: var(--white); }

.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    padding-top: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.8rem;
    color: var(--gray-600);
}

@media (max-width: 900px) {
    .nav-links { display: none; }
    .footer-content { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
    .footer-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }
}