/* ==========================================================================
   Lars Cuppen — Portfolio
   Design tokens + base + components
   ========================================================================== */

:root {
    /* Colors */
    --bg-primary: #08090d;
    --bg-secondary: #0d0f16;
    --bg-card: #12141c;
    --bg-card-hover: #161925;
    --text-primary: #f5f6f8;
    --text-secondary: #9aa1b1;
    --text-muted: #616a7d;
    --accent: #6c6cf4;
    --accent-secondary: #9d6cf4;
    --accent-cyan: #4fd8e0;
    --border: rgba(255, 255, 255, 0.08);
    --border-strong: rgba(255, 255, 255, 0.14);
    --success: #4ade80;
    --error: #f87171;

    /* Type */
    --font-display: 'Space Grotesk', 'Inter', sans-serif;
    --font-body: 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    /* Layout */
    --max-width: 1160px;
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 22px;
    --transition-fast: 180ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 320ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 560ms cubic-bezier(0.16, 1, 0.3, 1);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body { overflow-x: hidden; }

body {
    margin: 0;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
ul { list-style: none; margin: 0; padding: 0; }
h1, h2, h3, h4 { font-family: var(--font-display); margin: 0; font-weight: 600; line-height: 1.15; }
p { margin: 0 0 1rem; color: var(--text-secondary); }

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

.skip-link {
    position: absolute;
    top: -100px;
    left: 16px;
    background: var(--accent);
    color: #fff;
    padding: 10px 16px;
    border-radius: var(--radius-sm);
    z-index: 999;
    transition: top var(--transition-fast);
}
.skip-link:focus { top: 16px; }

:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
    border-radius: 4px;
}

/* ---------- Loading screen ---------- */
#loading-screen {
    position: fixed;
    inset: 0;
    background: var(--bg-primary);
    z-index: 9999;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    transition: opacity 500ms ease, visibility 500ms ease;
}
#loading-screen.loaded { opacity: 0; visibility: hidden; pointer-events: none; }
.loading-mark {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    color: var(--accent);
}
.loading-text { color: var(--text-muted); font-size: 0.85rem; margin: 0; }

/* ---------- Scroll progress ---------- */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 2px;
    width: 0%;
    background: linear-gradient(90deg, var(--accent), var(--accent-secondary));
    z-index: 1001;
    transition: width 80ms linear;
}

/* ---------- Custom cursor ---------- */
.cursor-dot, .cursor-ring {
    position: fixed;
    top: 0; left: 0;
    border-radius: 50%;
    pointer-events: none;
    z-index: 1000;
    transform: translate(-50%, -50%);
    opacity: 0;
}
.cursor-dot {
    width: 6px; height: 6px;
    background: var(--accent);
    transition: opacity var(--transition-fast);
}
.cursor-ring {
    width: 32px; height: 32px;
    border: 1px solid var(--border-strong);
    transition: width var(--transition-fast), height var(--transition-fast), opacity var(--transition-fast), border-color var(--transition-fast);
}
.cursor-ring.cursor-hover {
    width: 52px;
    height: 52px;
    border-color: var(--accent);
}
body.cursor-active .cursor-dot, body.cursor-active .cursor-ring { opacity: 1; }

/* ---------- Navbar ---------- */
.navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 900;
    padding: 20px 0;
    transition: background var(--transition-base), backdrop-filter var(--transition-base), border-color var(--transition-base), padding var(--transition-base);
    border-bottom: 1px solid transparent;
}
.navbar.scrolled {
    background: rgba(8, 9, 13, 0.72);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    padding: 14px 0;
}
.navbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.navbar-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-display);
    font-weight: 600;
}
.brand-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
    color: #fff;
    font-size: 0.85rem;
    letter-spacing: 0.02em;
}
.brand-name { font-size: 1rem; }

.navbar-links { display: flex; align-items: center; gap: 34px; }
.nav-link {
    position: relative;
    font-size: 0.92rem;
    color: var(--text-secondary);
    padding: 4px 0;
    transition: color var(--transition-fast);
}
.nav-link::after {
    content: '';
    position: absolute;
    left: 0; bottom: -4px;
    width: 0;
    height: 1px;
    background: var(--accent);
    transition: width var(--transition-fast);
}
.nav-link:hover, .nav-link.active { color: var(--text-primary); }
.nav-link:hover::after, .nav-link.active::after { width: 100%; }

.menu-toggle {
    display: none;
    background: none;
    border: none;
    width: 32px;
    height: 22px;
    flex-direction: column;
    justify-content: space-between;
    padding: 0;
}
.menu-toggle-line {
    display: block;
    height: 2px;
    width: 100%;
    background: var(--text-primary);
    border-radius: 2px;
    transition: transform var(--transition-fast), opacity var(--transition-fast);
}
.menu-toggle[aria-expanded="true"] .menu-toggle-line:first-child { transform: translateY(10px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] .menu-toggle-line:last-child { transform: translateY(-10px) rotate(-45deg); }

.mobile-menu {
    position: fixed;
    inset: 0;
    background: rgba(8, 9, 13, 0.98);
    backdrop-filter: blur(20px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 899;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-base), visibility var(--transition-base);
}
.mobile-menu.open { opacity: 1; visibility: visible; }
.mobile-menu-links { display: flex; flex-direction: column; gap: 28px; text-align: center; }
.mobile-nav-link {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 600;
    color: var(--text-primary);
    overflow: hidden;
}
.mobile-nav-link span {
    display: inline-block;
    transform: translateY(40px);
    opacity: 0;
    transition: transform var(--transition-slow), opacity var(--transition-slow);
}
.mobile-menu.open .mobile-nav-link span { transform: translateY(0); opacity: 1; }
.mobile-menu.open .mobile-nav-link:nth-child(1) span { transition-delay: 60ms; }
.mobile-menu.open .mobile-nav-link:nth-child(2) span { transition-delay: 120ms; }
.mobile-menu.open .mobile-nav-link:nth-child(3) span { transition-delay: 180ms; }
.mobile-menu.open .mobile-nav-link:nth-child(4) span { transition-delay: 240ms; }
.mobile-menu.open .mobile-nav-link:nth-child(5) span { transition-delay: 300ms; }

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 26px;
    border-radius: 100px;
    font-size: 0.92rem;
    font-weight: 500;
    border: 1px solid transparent;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast), border-color var(--transition-fast);
    white-space: nowrap;
}
.btn-primary {
    background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
    color: #fff;
    box-shadow: 0 0 0 rgba(108, 108, 244, 0);
}
.btn-primary:hover {
    box-shadow: 0 8px 30px rgba(108, 108, 244, 0.35);
    transform: translateY(-2px);
}
.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border-color: var(--border-strong);
}
.btn-secondary:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
}
.btn-arrow { transition: transform var(--transition-fast); }
.btn:hover .btn-arrow { transform: translateX(4px); }
.btn:disabled { opacity: 0.6; cursor: not-allowed; transform: none !important; }

.text-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--accent);
    font-weight: 500;
    font-size: 0.92rem;
}
.text-link svg { transition: transform var(--transition-fast); }
.text-link:hover svg { transform: translateX(4px); }

/* ---------- Sections ---------- */
.section { padding: 120px 0; position: relative; }
.section-alt { background: var(--bg-secondary); }
.section-header { margin-bottom: 56px; max-width: 640px; }
.section-number {
    font-family: var(--font-mono);
    font-size: 0.82rem;
    color: var(--accent);
    margin-bottom: 12px;
    letter-spacing: 0.02em;
}
.section-title { font-size: clamp(1.8rem, 3vw, 2.4rem); }
.section-cta { margin-top: 48px; }

.page-hero { padding: 168px 0 60px; }
.page-hero-title { font-size: clamp(2.2rem, 5vw, 3.4rem); margin: 16px 0 20px; }
.page-hero-text { max-width: 560px; }

/* ---------- Hero ---------- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 90px;
    overflow: hidden;
}
.hero-bg { position: absolute; inset: 0; z-index: 0; pointer-events: none; }
.hero-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(var(--border) 1px, transparent 1px),
        linear-gradient(90deg, var(--border) 1px, transparent 1px);
    background-size: 64px 64px;
    mask-image: radial-gradient(ellipse 70% 60% at 50% 30%, black 30%, transparent 80%);
    opacity: 0.5;
}
.hero-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(90px);
    opacity: 0.35;
}
.hero-orb-1 {
    width: 480px; height: 480px;
    background: var(--accent);
    top: -140px; right: -100px;
}
.hero-orb-2 {
    width: 360px; height: 360px;
    background: var(--accent-secondary);
    bottom: -120px; left: -80px;
    opacity: 0.25;
}

.hero-inner {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 60px;
    align-items: center;
}
.hero-eyebrow {
    font-family: var(--font-mono);
    color: var(--accent);
    font-size: 0.9rem;
    margin-bottom: 18px;
}
.hero-heading {
    font-size: clamp(2.6rem, 6vw, 4.6rem);
    letter-spacing: -0.02em;
    margin-bottom: 24px;
}
.hero-subtext {
    font-size: 1.05rem;
    max-width: 460px;
    margin-bottom: 36px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

.hero-visual { display: flex; justify-content: center; }
.code-card {
    width: 100%;
    max-width: 380px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: 0 30px 80px rgba(0,0,0,0.45);
    animation: floatCard 6s ease-in-out infinite;
}
.code-card-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 14px 18px;
    border-bottom: 1px solid var(--border);
}
.code-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--border-strong); }
.code-card-title { margin-left: 8px; font-family: var(--font-mono); font-size: 0.75rem; color: var(--text-muted); }
.code-card-body {
    margin: 0;
    padding: 20px;
    font-family: var(--font-mono);
    font-size: 0.82rem;
    line-height: 1.9;
    color: var(--text-secondary);
    overflow-x: auto;
}
.code-line { display: block; }
.code-num { color: var(--text-muted); margin-right: 14px; user-select: none; }
.code-key { color: var(--accent-cyan); }
.code-str { color: var(--accent-secondary); }

.scroll-indicator {
    position: absolute;
    bottom: 36px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    color: var(--text-muted);
    font-size: 0.72rem;
    letter-spacing: 0.08em;
    z-index: 1;
}
.scroll-arrow {
    width: 1px;
    height: 30px;
    background: linear-gradient(var(--text-muted), transparent);
    animation: scrollBounce 2s ease-in-out infinite;
}

/* ---------- About ---------- */
.about-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 60px;
    align-items: start;
}
.about-grid-wide { grid-template-columns: 1.6fr 1fr; }
.about-text p:last-of-type { margin-bottom: 24px; }

.profile-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    text-align: center;
}
.profile-image-wrap {
    width: 120px;
    height: 120px;
    margin: 0 auto 20px;
    border-radius: 50%;
    overflow: hidden;
    border: 1px solid var(--border-strong);
    background: var(--bg-secondary);
}
.profile-image-wrap img { width: 100%; height: 100%; object-fit: cover; }
.profile-name { font-size: 1.15rem; margin-bottom: 6px; }
.profile-role { font-size: 0.85rem; margin-bottom: 20px; }
.profile-tags-label {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--text-muted);
    margin-bottom: 12px;
    letter-spacing: 0.04em;
}
.profile-tags { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; }
.tag {
    font-size: 0.78rem;
    padding: 6px 12px;
    border-radius: 100px;
    background: var(--bg-card-hover);
    border: 1px solid var(--border);
    color: var(--text-secondary);
}

/* ---------- Timeline ---------- */
.timeline { display: flex; flex-direction: column; gap: 0; max-width: 640px; }
.timeline-item {
    display: grid;
    grid-template-columns: 100px 1fr;
    gap: 24px;
    padding: 28px 0;
    border-bottom: 1px solid var(--border);
}
.timeline-item:last-child { border-bottom: none; }
.timeline-year { font-family: var(--font-mono); color: var(--accent); font-size: 1rem; }
.timeline-content h3 { font-size: 1.1rem; margin-bottom: 6px; }
.timeline-content p { margin: 0; }

/* ---------- Skills ---------- */
.skills-block { margin-bottom: 48px; }
.skills-block:last-child { margin-bottom: 0; }
.skills-category-title {
    font-size: 0.95rem;
    color: var(--text-muted);
    text-transform: none;
    margin-bottom: 20px;
    font-family: var(--font-body);
    font-weight: 500;
}
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 18px;
}
.skill-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 24px;
    transition: transform var(--transition-base), border-color var(--transition-base), background var(--transition-base);
}
.skill-card:hover {
    transform: translateY(-6px);
    border-color: var(--border-strong);
    background: var(--bg-card-hover);
}
.skill-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--accent-cyan);
    margin-bottom: 16px;
    transition: transform var(--transition-fast);
}
.skill-card:hover .skill-icon { transform: scale(1.1); }
.skill-name { font-size: 1.05rem; margin-bottom: 6px; }
.skill-desc { font-size: 0.85rem; margin-bottom: 16px; }
.skill-level {
    display: inline-block;
    font-size: 0.72rem;
    padding: 5px 11px;
    border-radius: 100px;
    font-family: var(--font-mono);
}
.level-confident { background: rgba(74, 222, 128, 0.12); color: var(--success); }
.level-experience { background: rgba(108, 108, 244, 0.14); color: var(--accent); }
.level-learning { background: rgba(157, 108, 244, 0.14); color: var(--accent-secondary); }

/* ---------- Projects ---------- */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
}
.project-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: transform var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
}
.project-card:hover {
    transform: translateY(-6px);
    border-color: var(--border-strong);
    box-shadow: 0 20px 50px rgba(0,0,0,0.35);
}
.project-card-link { display: block; }
.project-image-wrap {
    position: relative;
    aspect-ratio: 3 / 2;
    overflow: hidden;
    background: var(--bg-secondary);
}
.project-image-wrap img {
    width: 100%; height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}
.project-card:hover .project-image-wrap img { transform: scale(1.06); }
.project-image-wrap::after {
    content: '';
    position: absolute; inset: 0;
    background: linear-gradient(180deg, transparent 50%, rgba(8,9,13,0.7) 100%);
    opacity: 0;
    transition: opacity var(--transition-base);
}
.project-card:hover .project-image-wrap::after { opacity: 1; }
.project-badge {
    position: absolute;
    top: 14px; right: 14px;
    background: rgba(8,9,13,0.75);
    backdrop-filter: blur(6px);
    border: 1px solid var(--border-strong);
    color: var(--text-secondary);
    font-size: 0.7rem;
    padding: 5px 11px;
    border-radius: 100px;
    font-family: var(--font-mono);
}
.project-badge-static { display: inline-block; margin-top: 8px; }
.project-info { padding: 26px; }
.project-number { font-family: var(--font-mono); color: var(--text-muted); font-size: 0.78rem; }
.project-title { font-size: 1.2rem; margin: 8px 0 10px; }
.project-desc { font-size: 0.9rem; margin-bottom: 18px; }
.project-tech { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; }
.tech-tag {
    font-size: 0.74rem;
    font-family: var(--font-mono);
    padding: 5px 10px;
    border-radius: 6px;
    background: var(--bg-card-hover);
    border: 1px solid var(--border);
    color: var(--accent-cyan);
}
.project-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--accent);
    font-size: 0.88rem;
    font-weight: 500;
}
.project-link svg { transition: transform var(--transition-fast); }
.project-card:hover .project-link svg { transform: translateX(4px); }

.project-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 40px;
}
.filter-btn {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-secondary);
    padding: 9px 18px;
    border-radius: 100px;
    font-size: 0.85rem;
    transition: all var(--transition-fast);
}
.filter-btn:hover { border-color: var(--border-strong); color: var(--text-primary); }
.filter-btn.active { background: var(--accent); border-color: var(--accent); color: #fff; }
.filter-empty { color: var(--text-muted); margin-top: 20px; }

/* Filtering transition */
.project-card.is-hidden { display: none; }
.project-card.is-filtering { animation: fadeScaleIn var(--transition-base) ease; }

/* ---------- Project detail ---------- */
.project-detail-hero { padding: 168px 0 40px; }
.back-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 0.88rem;
    margin-bottom: 24px;
    transition: color var(--transition-fast);
}
.back-link:hover { color: var(--text-primary); }
.project-detail-image {
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border);
    margin-bottom: 56px;
}
.project-detail-grid {
    display: grid;
    grid-template-columns: 1.6fr 1fr;
    gap: 60px;
}
.detail-heading { font-size: 1.15rem; margin: 32px 0 12px; }
.detail-heading:first-child { margin-top: 0; }
.side-block { margin-bottom: 32px; }
.side-heading { font-size: 0.95rem; color: var(--text-muted); font-weight: 500; margin-bottom: 14px; font-family: var(--font-body); }

/* ---------- Contact CTA (index/about) ---------- */
.contact-cta { position: relative; overflow: hidden; text-align: center; }
.contact-cta-bg {
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 60% 70% at 50% 40%, rgba(108,108,244,0.16), transparent 70%);
    z-index: 0;
}
.contact-cta-inner { position: relative; z-index: 1; max-width: 640px; margin: 0 auto; }
.contact-cta-title { font-size: clamp(1.8rem, 4vw, 2.6rem); margin: 12px 0 18px; }
.contact-cta-text { margin-bottom: 32px; }

/* ---------- Contact page ---------- */
.contact-section { position: relative; }
.contact-bg {
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 50% 50% at 85% 15%, rgba(157,108,244,0.14), transparent 60%),
                radial-gradient(ellipse 45% 45% at 10% 85%, rgba(79,216,224,0.09), transparent 60%);
    z-index: 0;
}
.contact-grid {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 56px;
}
.contact-form-wrap {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 40px;
}
.contact-form { display: flex; flex-direction: column; gap: 20px; }
.form-field { display: flex; flex-direction: column; gap: 8px; }
.form-field label { font-size: 0.85rem; color: var(--text-secondary); }
.form-field input, .form-field textarea {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    padding: 13px 16px;
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    resize: vertical;
}
.form-field input:focus, .form-field textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 4px rgba(108,108,244,0.14);
}
.honeypot-field { position: absolute; left: -9999px; opacity: 0; height: 0; overflow: hidden; }
.form-submit { justify-content: center; margin-top: 6px; }
.form-alert {
    padding: 18px 22px;
    border-radius: var(--radius-md);
    margin-bottom: 24px;
    font-size: 0.9rem;
}
.form-alert-success { background: rgba(74, 222, 128, 0.1); border: 1px solid rgba(74,222,128,0.3); color: var(--success); }
.form-alert-success p { color: var(--success); opacity: 0.85; margin: 6px 0 0; }
.form-alert-error { background: rgba(248, 113, 113, 0.1); border: 1px solid rgba(248,113,113,0.3); color: var(--error); }
.form-alert-error p { color: var(--error); opacity: 0.85; margin: 6px 0; }
.form-alert-error ul { padding-left: 18px; margin: 0; }
.form-alert-error li { list-style: disc; color: var(--error); font-size: 0.86rem; }

.contact-info { padding-top: 8px; }
.contact-info-item { margin-bottom: 24px; }
.contact-info-label {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--text-muted);
    margin-bottom: 6px;
    letter-spacing: 0.04em;
}
.contact-info-value { font-size: 1rem; color: var(--text-primary); }
a.contact-info-value:hover { color: var(--accent); }
.contact-socials { display: flex; gap: 10px; margin-top: 32px; flex-wrap: wrap; }
.social-btn {
    border: 1px solid var(--border);
    padding: 10px 18px;
    border-radius: 100px;
    font-size: 0.85rem;
    transition: all var(--transition-fast);
}
.social-btn:hover { border-color: var(--accent); color: var(--accent); }

/* ---------- Footer ---------- */
.site-footer {
    position: relative;
    padding: 80px 0 30px;
    border-top: 1px solid var(--border);
    overflow: hidden;
    background: var(--bg-secondary);
}
.footer-bg-text {
    position: absolute;
    bottom: -6vw;
    right: -2vw;
    font-family: var(--font-display);
    font-size: 15vw;
    font-weight: 700;
    color: var(--text-primary);
    opacity: 0.03;
    line-height: 1;
    user-select: none;
    pointer-events: none;
}
.footer-grid {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 60px;
}
.footer-brand { font-family: var(--font-display); font-size: 1.3rem; margin-bottom: 8px; }
.footer-role { font-size: 0.88rem; margin-bottom: 20px; }
.footer-tagline { font-size: 0.88rem; color: var(--text-muted); line-height: 1.7; }
.footer-heading { font-size: 0.82rem; color: var(--text-muted); margin-bottom: 18px; font-weight: 500; font-family: var(--font-body); }
.footer-link { display: block; color: var(--text-secondary); font-size: 0.9rem; margin-bottom: 12px; transition: color var(--transition-fast); width: fit-content; }
.footer-link:hover { color: var(--text-primary); }
.footer-bottom {
    position: relative;
    z-index: 1;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
    padding-top: 26px;
    border-top: 1px solid var(--border);
    font-size: 0.82rem;
    color: var(--text-muted);
}
.footer-bottom p { margin: 0; color: var(--text-muted); }

/* ---------- Back to top ---------- */
.back-to-top {
    position: fixed;
    bottom: 28px;
    right: 28px;
    width: 46px;
    height: 46px;
    border-radius: 50%;
    background: var(--bg-card);
    border: 1px solid var(--border-strong);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: opacity var(--transition-base), transform var(--transition-base), border-color var(--transition-fast), visibility var(--transition-base);
    z-index: 500;
}
.back-to-top.visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { border-color: var(--accent); color: var(--accent); }

/* ---------- 404 ---------- */
.error-page {
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 100px 0;
}
.error-code {
    font-family: var(--font-display);
    font-size: clamp(4rem, 14vw, 8rem);
    font-weight: 700;
    color: var(--accent);
    margin: 0;
    line-height: 1;
}
.error-title { font-size: clamp(1.4rem, 3vw, 2rem); margin: 20px 0 36px; }