/* ==========================================================================
   Leonova — site stylesheet
   Sections: tokens · base · buttons · nav · hero · sections · cards & chips ·
   projects · about · services · contact · footer · utilities · responsive
   ========================================================================== */

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

:root {
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #3b82f6;
    --primary-soft: #dbeafe;
    --secondary-color: #64748b;
    --accent-color: #f59e0b;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;

    --white: #ffffff;
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;

    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-secondary: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    --section-y: clamp(3.5rem, 8vw, 6rem);

    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;

    --shadow-sm: 0 1px 2px 0 rgb(15 23 42 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(15 23 42 / 0.08), 0 2px 4px -2px rgb(15 23 42 / 0.06);
    --shadow-lg: 0 10px 15px -3px rgb(15 23 42 / 0.1), 0 4px 6px -4px rgb(15 23 42 / 0.08);
    --shadow-xl: 0 20px 25px -5px rgb(15 23 42 / 0.12), 0 8px 10px -6px rgb(15 23 42 / 0.08);

    --transition-fast: 0.15s ease-in-out;
    --transition-normal: 0.3s ease-in-out;
    --nav-height: 72px;
}

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; overflow-x: clip; }
@supports not (overflow: clip) { html { overflow-x: hidden; } }
/* Entrance animations shift elements sideways before they appear; clip that at the section edge so the page never grows wider than the screen. */
.main-content > section, .footer, .page-hero { overflow-x: clip; }
body {
    font-family: var(--font-primary);
    line-height: 1.65;
    color: var(--gray-800);
    background-color: var(--white);
    }
img, video { max-width: 100%; height: auto; display: block; }
[hidden] { display: none !important; }
a { color: var(--primary-color); }
ul[class] { list-style: none; }

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-secondary);
    font-weight: 700;
    line-height: 1.15;
    color: var(--gray-900);
    letter-spacing: -0.01em;
}
h1 { font-size: clamp(2.1rem, 4.5vw, 3.25rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.25rem); }
h3 { font-size: 1.35rem; }
h4 { font-size: 1.125rem; }
p { margin-bottom: var(--spacing-md); color: var(--gray-600); }
.lead { font-size: 1.15rem; color: var(--gray-700); }
strong { color: var(--gray-900); }
code { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 0.92em; background: var(--gray-100); padding: 0.1em 0.35em; border-radius: var(--radius-sm); }

:focus-visible { outline: 3px solid var(--primary-light); outline-offset: 3px; border-radius: var(--radius-sm); }
.skip-link { position: absolute; left: 1rem; top: -4rem; background: var(--gray-900); color: #fff; padding: 0.6rem 1rem; border-radius: var(--radius-md); z-index: 2000; transition: top var(--transition-fast); }
.skip-link:focus { top: 1rem; }

/* ===== LAYOUT ===== */
.container { max-width: 1160px; margin: 0 auto; padding: 0 var(--spacing-lg); }
.section { padding: var(--section-y) 0; }
.section-alt { background: var(--gray-50); }
.section-header { text-align: center; margin-bottom: var(--spacing-2xl); }
.section-header-left { text-align: left; max-width: 720px; }
.section-title { margin-bottom: var(--spacing-sm); }
.section-subtitle { font-size: 1.1rem; color: var(--gray-600); margin: 0 auto; max-width: 640px; }
.section-header-left .section-subtitle { margin: 0; }
.section-cta { text-align: center; margin-top: var(--spacing-2xl); }

.eyebrow {
    display: inline-block;
    font-size: 0.8rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase;
    color: var(--primary-color); margin-bottom: 0.75rem;
}
.eyebrow .dot { display: inline-block; vertical-align: middle; margin: -2px 0.4rem 0 0; width: 8px; height: 8px; border-radius: 50%; background: var(--success-color); box-shadow: 0 0 0 4px rgb(16 185 129 / 0.2); }
.eyebrow-light { color: var(--primary-soft); }

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
    padding: 0.8rem 1.5rem; border: 2px solid transparent; border-radius: var(--radius-lg);
    font-family: var(--font-primary); font-weight: 600; font-size: 0.95rem; line-height: 1.2;
    text-decoration: none; cursor: pointer; transition: all var(--transition-fast); white-space: nowrap;
}
.btn-primary { background: var(--primary-color); color: #fff; box-shadow: 0 6px 16px -6px rgb(37 99 235 / 0.6); }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-1px); color: #fff; }
.btn-secondary { background: transparent; color: #fff; border-color: rgb(255 255 255 / 0.6); }
.btn-secondary:hover { background: #fff; color: var(--primary-dark); }
.btn-secondary-dark { background: var(--gray-900); color: #fff; }
.btn-secondary-dark:hover { background: var(--gray-700); color: #fff; }
.btn-outline { background: transparent; color: var(--primary-color); border-color: var(--primary-color); }
.btn-outline:hover { background: var(--primary-color); color: #fff; }
.btn-sm { padding: 0.6rem 1.1rem; font-size: 0.9rem; }
.btn-full { width: 100%; }
.btn[disabled] { opacity: 0.7; cursor: progress; }
.link-arrow { font-weight: 600; text-decoration: none; color: var(--primary-color); display: inline-flex; align-items: center; gap: 0.35rem; }
.link-arrow:hover { text-decoration: underline; }
.link-muted { color: var(--gray-500); font-size: 0.9rem; display: inline-flex; align-items: center; gap: 0.35rem; }

/* ===== NAVIGATION ===== */
.navbar {
    position: sticky; top: 0; z-index: 1000; height: var(--nav-height);
    background: rgb(255 255 255 / 0.86); border-bottom: 1px solid transparent; transition: box-shadow var(--transition-normal), border-color var(--transition-normal);
}
.navbar::before { content: ""; position: absolute; inset: 0; z-index: -1; backdrop-filter: saturate(1.8) blur(12px); -webkit-backdrop-filter: saturate(1.8) blur(12px); }
.navbar.scrolled { border-bottom-color: var(--gray-200); box-shadow: var(--shadow-sm); }
.nav-container { max-width: 1160px; margin: 0 auto; padding: 0 var(--spacing-lg); height: 100%; display: flex; align-items: center; justify-content: space-between; gap: var(--spacing-lg); }
.nav-logo a { display: flex; align-items: center; gap: 0.65rem; text-decoration: none; }
.logo-mark { width: 38px; height: 38px; border-radius: 10px; background: var(--primary-color); color: #fff; font-family: var(--font-secondary); font-weight: 800; font-size: 1.2rem; display: grid; place-items: center; }
.logo-words { display: flex; flex-direction: column; line-height: 1.1; }
.logo-text { font-family: var(--font-secondary); font-size: 1.25rem; font-weight: 700; color: var(--gray-900); }
.logo-subtitle { font-size: 0.72rem; color: var(--gray-500); font-weight: 500; }
.nav-menu { display: flex; align-items: center; gap: 0.25rem; }
.nav-link { padding: 0.5rem 0.85rem; border-radius: var(--radius-md); text-decoration: none; color: var(--gray-700); font-weight: 500; font-size: 0.95rem; transition: all var(--transition-fast); }
.nav-link:hover { color: var(--primary-color); background: var(--gray-100); }
.nav-link.active { color: var(--primary-color); }
.nav-cta { margin-left: 0.5rem; background: var(--primary-color); color: #fff !important; padding: 0.6rem 1.1rem; }
.nav-cta:hover { background: var(--primary-dark); }
.nav-toggle { display: none; flex-direction: column; justify-content: center; gap: 5px; width: 44px; height: 44px; background: none; border: 0; border-radius: var(--radius-md); cursor: pointer; }
.nav-toggle .bar { width: 24px; height: 2px; background: var(--gray-800); margin: 0 auto; transition: transform var(--transition-normal), opacity var(--transition-normal); }
.nav-toggle[aria-expanded="true"] .bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .bar:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===== HERO (home) ===== */
.hero-split {
    position: relative; overflow: hidden;
    background:
        radial-gradient(60% 60% at 85% 20%, rgb(37 99 235 / 0.12) 0%, transparent 70%),
        radial-gradient(40% 40% at 10% 90%, rgb(245 158 11 / 0.10) 0%, transparent 70%),
        var(--gray-50);
}
.hero-split::before {
    content: ""; position: absolute; inset: 0; pointer-events: none;
    background-image: linear-gradient(rgb(15 23 42 / 0.04) 1px, transparent 1px), linear-gradient(90deg, rgb(15 23 42 / 0.04) 1px, transparent 1px);
    background-size: 48px 48px; mask-image: linear-gradient(to bottom, rgb(0 0 0 / 0.6), transparent 85%);
}
.hero-grid { position: relative; display: grid; grid-template-columns: 1.15fr 0.85fr; gap: var(--spacing-3xl); align-items: center; padding-top: clamp(3rem, 8vw, 6rem); padding-bottom: clamp(3rem, 8vw, 6rem); min-height: min(calc(100vh - var(--nav-height)), 780px); }
.hero-title { font-size: clamp(2.2rem, 4.6vw, 3.6rem); font-weight: 800; color: var(--gray-900); margin-bottom: var(--spacing-lg); }
.hero-greeting { display: block; font-size: 0.45em; font-weight: 600; color: var(--accent-color); margin-bottom: 0.5rem; letter-spacing: 0.02em; }
.hero-subtitle { font-size: 1.15rem; color: var(--gray-600); max-width: 560px; margin-bottom: var(--spacing-xl); }
.hero-actions { display: flex; flex-wrap: wrap; gap: var(--spacing-md); }
.hero-stack { display: flex; flex-wrap: wrap; gap: 0.5rem 1.25rem; margin-top: var(--spacing-xl); color: var(--gray-500); font-size: 0.85rem; font-weight: 600; letter-spacing: 0.02em; }
.hero-stack li::before { content: "▸ "; color: var(--primary-light); }

.hero-visual { position: relative; isolation: isolate; justify-self: center; width: min(100%, 420px); }
.hero-portrait { position: relative; border-radius: 28px; overflow: hidden; box-shadow: var(--shadow-xl); aspect-ratio: 3 / 4; background: var(--gray-200); }
.hero-portrait::after { content: ""; position: absolute; inset: 0; border-radius: inherit; box-shadow: inset 0 0 0 1px rgb(255 255 255 / 0.4); }
.hero-portrait img { width: 100%; height: 100%; object-fit: cover; }
.hero-visual::before { content: ""; position: absolute; inset: 18px -18px -18px 18px; border-radius: 28px; background: linear-gradient(135deg, var(--primary-color), var(--primary-dark)); z-index: -1; opacity: 0.9; }
.hero-badge {
    position: absolute; display: flex; align-items: center; gap: 0.7rem;
    background: rgb(255 255 255 / 0.95); backdrop-filter: blur(8px); border: 1px solid var(--gray-200);
    border-radius: 14px; padding: 0.7rem 0.9rem; box-shadow: var(--shadow-lg); font-size: 0.85rem; line-height: 1.25;
}
.hero-badge i { width: 34px; height: 34px; border-radius: 10px; display: grid; place-items: center; background: var(--primary-soft); color: var(--primary-color); }
.hero-badge strong { display: block; color: var(--gray-900); }
.hero-badge span { color: var(--gray-500); font-size: 0.78rem; }
.hero-badge-top { top: 6%; left: -14%; }
.hero-badge-bottom { bottom: 8%; right: -12%; }

/* ===== FACTS STRIP ===== */
.facts-strip { background: var(--gray-900); color: #fff; }
.facts-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.fact { padding: 1.4rem 1rem; display: flex; flex-direction: column; align-items: center; text-align: center; border-left: 1px solid rgb(255 255 255 / 0.08); }
.fact:first-child { border-left: 0; }
.fact-number { font-family: var(--font-secondary); font-size: 1.8rem; font-weight: 800; color: #fff; line-height: 1; }
.fact-label { font-size: 0.85rem; color: var(--gray-400); margin-top: 0.35rem; }

/* ===== PAGE HERO (inner pages) ===== */
.page-hero {
    background: linear-gradient(135deg, var(--gray-900) 0%, #1e3a8a 60%, var(--primary-color) 100%);
    color: #fff; padding: clamp(3rem, 7vw, 5rem) 0; text-align: center; position: relative; overflow: hidden;
}
.page-hero::after { content: ""; position: absolute; inset: 0; background-image: radial-gradient(rgb(255 255 255 / 0.12) 1px, transparent 1px); background-size: 22px 22px; opacity: 0.5; pointer-events: none; }
.page-hero .container { position: relative; z-index: 1; }
.page-hero .hero-title { color: #fff; margin-bottom: var(--spacing-md); }
.page-hero .hero-subtitle { color: var(--primary-soft); margin: 0 auto; }
.page-hero-project { text-align: left; }
.page-hero-project .hero-subtitle { margin: 0 0 var(--spacing-md); max-width: 720px; }
.breadcrumbs { color: var(--primary-soft); font-size: 0.9rem; margin-bottom: var(--spacing-md); }
.breadcrumbs a { color: #fff; text-decoration: none; }
.breadcrumbs a:hover { text-decoration: underline; }
.hero-meta { justify-content: flex-start; }

/* ===== BADGES & CHIPS ===== */
.featured-meta { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-bottom: 0.9rem; }
.badge { display: inline-flex; align-items: center; padding: 0.25rem 0.65rem; border-radius: 999px; font-size: 0.74rem; font-weight: 700; letter-spacing: 0.03em; }
.badge-category { background: var(--primary-soft); color: var(--primary-dark); }
.badge-status { background: #dcfce7; color: #166534; }
.badge-muted { background: var(--gray-100); color: var(--gray-600); }
.page-hero .badge-category { background: rgb(255 255 255 / 0.18); color: #fff; }
.page-hero .badge-status { background: rgb(16 185 129 / 0.25); color: #d1fae5; }
.page-hero .badge-muted { background: rgb(255 255 255 / 0.12); color: var(--primary-soft); }
.tech-chips { display: flex; flex-wrap: wrap; gap: 0.4rem; margin: 0.25rem 0 1rem; }
.tech-chips li { font-size: 0.78rem; font-weight: 600; color: var(--gray-700); background: var(--gray-100); border: 1px solid var(--gray-200); padding: 0.28rem 0.6rem; border-radius: 999px; }

/* ===== FEATURED PROJECTS (home) ===== */
.featured-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--spacing-xl); }
.featured-card { background: #fff; border: 1px solid var(--gray-200); border-radius: var(--radius-2xl); overflow: hidden; display: flex; flex-direction: column; transition: transform var(--transition-normal), box-shadow var(--transition-normal); }
.featured-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-xl); }
.featured-media { display: block; aspect-ratio: 16 / 10; overflow: hidden; background: var(--gray-100); }
.featured-media img { width: 100%; height: 100%; object-fit: cover; object-position: top; transition: transform 0.6s ease; }
.featured-card:hover .featured-media img { transform: scale(1.03); }
.featured-body { padding: var(--spacing-lg) var(--spacing-lg) var(--spacing-xl); display: flex; flex-direction: column; flex: 1; }
.featured-title { font-size: 1.35rem; margin-bottom: 0.4rem; }
.featured-title a { color: inherit; text-decoration: none; }
.featured-title a:hover { color: var(--primary-color); }
.featured-tagline { color: var(--gray-600); flex: 1; }
.featured-links { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem; margin-top: auto; padding-top: 0.5rem; }

/* ===== PROJECT SHOWCASE (projects page) ===== */
.showcase { display: flex; flex-direction: column; gap: clamp(2.5rem, 6vw, 4.5rem); }
.showcase-item { display: grid; grid-template-columns: 1.1fr 1fr; gap: var(--spacing-2xl); align-items: center; }
.showcase-item-reverse .showcase-media { order: 2; }
.showcase-media { display: block; border-radius: var(--radius-2xl); overflow: hidden; box-shadow: var(--shadow-xl); border: 1px solid var(--gray-200); background: var(--gray-100); aspect-ratio: 16 / 10; }
.showcase-media img { width: 100%; height: 100%; object-fit: cover; object-position: top; transition: transform 0.6s ease; }
.showcase-media:hover img { transform: scale(1.02); }
.showcase-title { font-size: 1.75rem; margin-bottom: 0.35rem; }
.showcase-title a { color: inherit; text-decoration: none; }
.showcase-title a:hover { color: var(--primary-color); }
.showcase-tagline { font-size: 1.1rem; color: var(--gray-800); font-weight: 500; }
ul.showcase-highlights { margin: 0 0 var(--spacing-md); padding-left: 1.2rem; list-style: disc; color: var(--gray-600); font-size: 0.95rem; }
.showcase-highlights li { margin-bottom: 0.35rem; }

/* ===== PROJECT CARDS (grid) ===== */
.projects-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: var(--spacing-xl); }
.project-card { background: #fff; border: 1px solid var(--gray-200); border-radius: var(--radius-xl); overflow: hidden; display: flex; flex-direction: column; transition: transform var(--transition-normal), box-shadow var(--transition-normal); }
.project-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.project-image { display: block; aspect-ratio: 16 / 10; overflow: hidden; background: var(--gray-100); }
.project-image img { width: 100%; height: 100%; object-fit: cover; object-position: top; transition: transform 0.5s ease; }
.project-card:hover .project-image img { transform: scale(1.04); }
.project-content { padding: var(--spacing-lg); display: flex; flex-direction: column; flex: 1; }
.project-title { font-size: 1.2rem; margin-bottom: 0.4rem; }
.project-title a { color: inherit; text-decoration: none; }
.project-title a:hover { color: var(--primary-color); }
.project-description { flex: 1; font-size: 0.95rem; }
.project-links { display: flex; gap: 1rem; margin-top: auto; }
.github-note { margin-top: var(--spacing-2xl); text-align: center; color: var(--gray-500); font-size: 0.95rem; }
.post-date { font-size: 0.8rem; color: var(--gray-500); margin-bottom: 0.4rem; }

/* ===== PROJECT DETAIL ===== */
.project-media-frame { border-radius: var(--radius-2xl); overflow: hidden; border: 1px solid var(--gray-200); box-shadow: var(--shadow-xl); background: var(--gray-100); margin-top: calc(-1 * var(--section-y) + 2rem); }
.project-video { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; }
.media-caption { margin: 0; padding: 0.75rem 1rem; font-size: 0.85rem; color: var(--gray-500); background: #fff; border-top: 1px solid var(--gray-200); }
.project-layout { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: var(--spacing-3xl); margin-top: var(--spacing-2xl); }
.project-main h2 { font-size: 1.5rem; margin: var(--spacing-xl) 0 var(--spacing-md); }
.project-main h2:first-child { margin-top: 0; }
.checklist { display: grid; gap: 0.7rem; }
.checklist li { position: relative; padding-left: 2rem; color: var(--gray-700); }
.checklist li::before { content: "\f00c"; font-family: "Font Awesome 6 Free"; font-weight: 900; position: absolute; left: 0; top: 0.15rem; width: 1.4rem; height: 1.4rem; border-radius: 50%; background: #dcfce7; color: #166534; font-size: 0.7rem; display: grid; place-items: center; }
.prose h3 { font-size: 1.15rem; margin: 1.6rem 0 0.5rem; }
.prose h3:first-child { margin-top: 0; }
.prose p { color: var(--gray-700); font-size: 1.03rem; }
.prose p + p { margin-top: 0.25rem; }
.side-card { position: sticky; top: calc(var(--nav-height) + 1.5rem); background: var(--gray-50); border: 1px solid var(--gray-200); border-radius: var(--radius-xl); padding: var(--spacing-lg); }
.side-card h3 { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--gray-500); margin: var(--spacing-md) 0 0.5rem; }
.side-card h3:first-child { margin-top: 0; }
.side-card p { color: var(--gray-800); }
.side-links li { margin-bottom: 0.5rem; }
.side-links a { text-decoration: none; font-weight: 600; display: inline-flex; gap: 0.5rem; align-items: center; }
.side-links a:hover { text-decoration: underline; }
.side-links .muted { color: var(--gray-500); font-size: 0.9rem; }
.side-card .btn { margin-top: var(--spacing-lg); }
.project-pager { display: flex; justify-content: space-between; gap: var(--spacing-md); margin-top: var(--spacing-3xl); padding-top: var(--spacing-xl); border-top: 1px solid var(--gray-200); }
.pager-link { text-decoration: none; display: flex; flex-direction: column; gap: 0.2rem; color: var(--gray-900); }
.pager-link span { font-size: 0.8rem; color: var(--gray-500); text-transform: uppercase; letter-spacing: 0.08em; }
.pager-link:hover strong { color: var(--primary-color); }
.pager-next { text-align: right; align-items: flex-end; }

/* ===== SERVICES ===== */
.services-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: var(--spacing-xl); }
.service-card { background: #fff; border: 1px solid var(--gray-200); border-radius: var(--radius-xl); padding: var(--spacing-xl); transition: transform var(--transition-normal), box-shadow var(--transition-normal); }
.service-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.service-icon { width: 52px; height: 52px; border-radius: 14px; background: var(--primary-soft); color: var(--primary-color); display: grid; place-items: center; font-size: 1.3rem; margin-bottom: var(--spacing-md); }
.service-title { font-size: 1.15rem; margin-bottom: 0.5rem; }
.service-description { font-size: 0.95rem; margin-bottom: 0.5rem; }
.service-card.detailed { display: flex; flex-direction: column; }
.service-body { flex: 1; }
.service-footer { padding-top: var(--spacing-md); }
.services-grid-compact .service-card { padding: var(--spacing-lg); }
.services-grid-compact .service-description { margin-bottom: 0; }

.process-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: var(--spacing-xl); }
.process-step { background: #fff; border: 1px solid var(--gray-200); border-radius: var(--radius-xl); padding: var(--spacing-xl); }
.step-number { font-family: var(--font-secondary); font-size: 2rem; font-weight: 800; color: var(--primary-soft); line-height: 1; margin-bottom: var(--spacing-md); }
.step-content h3 { font-size: 1.1rem; margin-bottom: 0.5rem; }
.step-content p { font-size: 0.95rem; margin: 0; }

.tech-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: var(--spacing-xl); }
.tech-category { background: #fff; border: 1px solid var(--gray-200); border-radius: var(--radius-xl); padding: var(--spacing-lg); }
.tech-category h3 { font-size: 1rem; margin-bottom: 0.75rem; }

/* ===== ABOUT ===== */
.about-teaser { display: grid; grid-template-columns: 1fr 1.1fr; gap: var(--spacing-3xl); align-items: center; }
.about-teaser-copy p:not(.eyebrow) { font-size: 1.05rem; }
.about-teaser-photos { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.75rem; }
.about-teaser-photos img { aspect-ratio: 3 / 4; object-fit: cover; border-radius: var(--radius-lg); box-shadow: var(--shadow-md); }
.about-teaser-photos img:nth-child(2) { margin-top: 1.5rem; }

.about-intro { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: var(--spacing-3xl); align-items: start; }
.about-intro-photo img { border-radius: var(--radius-2xl); box-shadow: var(--shadow-xl); aspect-ratio: 3 / 4; object-fit: cover; position: sticky; top: calc(var(--nav-height) + 1.5rem); }
.about-intro-copy p { font-size: 1.03rem; }
.fact-list { display: grid; gap: 0.6rem; margin: var(--spacing-lg) 0 var(--spacing-xl); }
.fact-list li { display: flex; align-items: flex-start; gap: 0.75rem; color: var(--gray-700); }
.fact-list i { color: var(--primary-color); margin-top: 0.3rem; width: 1.1rem; text-align: center; }

.skills-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: var(--spacing-lg); }
.skill-card { background: #fff; border: 1px solid var(--gray-200); border-radius: var(--radius-xl); padding: var(--spacing-lg); }
.skill-card h3 { font-size: 1rem; margin-bottom: 0.75rem; display: flex; align-items: center; gap: 0.5rem; }
.skill-card h3 i { color: var(--primary-color); }
.skill-card .tech-chips { margin-bottom: 0; }

/* Mosaic gallery: 4 columns, tiles span 1 or 2 cells so the wall reads like a magazine spread. */
.photo-mosaic { display: grid; grid-template-columns: repeat(4, 1fr); grid-auto-rows: 210px; grid-auto-flow: dense; gap: 0.9rem; }
.photo-mosaic figure { position: relative; margin: 0; border-radius: var(--radius-xl); overflow: hidden; background: var(--gray-100); box-shadow: var(--shadow-md); isolation: isolate; }
.photo-mosaic .span-2x2 { grid-column: span 2; grid-row: span 2; }
.photo-mosaic .span-tall { grid-row: span 2; }
.photo-mosaic .span-wide { grid-column: span 2; }
.photo-mosaic img { width: 100%; height: 100%; object-fit: cover; object-position: center 22%; cursor: zoom-in; transition: transform 0.6s ease; }
.photo-mosaic figure:hover img { transform: scale(1.05); }
.photo-mosaic figcaption {
    position: absolute; inset: auto 0 0 0; padding: 2.2rem 1rem 0.9rem; color: #fff; font-size: 0.85rem; font-weight: 500; line-height: 1.3;
    background: linear-gradient(to top, rgb(15 23 42 / 0.75), transparent); opacity: 0; transform: translateY(6px); transition: opacity var(--transition-normal), transform var(--transition-normal); pointer-events: none;
}
.photo-mosaic figure:hover figcaption { opacity: 1; transform: none; }
.photo-mosaic .span-2x2 figcaption { font-size: 1rem; }
.photo-mosaic .span-2x2 img { object-position: center 38%; }
.photo-mosaic .pos-mid img { object-position: center 42%; }
.photo-mosaic .pos-top img { object-position: center 12%; }
@media (hover: none) { .photo-mosaic figcaption { opacity: 1; transform: none; } }

.values-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: var(--spacing-lg); }
.value-card { background: #fff; border: 1px solid var(--gray-200); border-radius: var(--radius-xl); padding: var(--spacing-xl); }
.value-icon { width: 48px; height: 48px; border-radius: 12px; background: var(--primary-soft); color: var(--primary-color); display: grid; place-items: center; font-size: 1.2rem; margin-bottom: var(--spacing-md); }
.value-card h3 { font-size: 1.1rem; margin-bottom: 0.5rem; }
.value-card p { font-size: 0.95rem; margin: 0; }

.subheading { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.12em; color: var(--gray-500); margin-top: var(--spacing-lg); }
.experience-list { display: grid; gap: 0.9rem; margin: var(--spacing-lg) 0 var(--spacing-xl); }
.experience-list li { display: grid; grid-template-columns: 44px 1fr; gap: 0.9rem; align-items: start; }
.experience-list i { width: 44px; height: 44px; border-radius: 12px; background: var(--primary-soft); color: var(--primary-color); display: grid; place-items: center; font-size: 1.05rem; }
.experience-list strong { display: block; color: var(--gray-900); }
.experience-list span { color: var(--gray-600); font-size: 0.95rem; }
.experience-next i { background: #dcfce7; color: #166534; }
.link-note { display: block; font-size: 0.8rem; color: var(--gray-500); margin-top: 0.25rem; }

/* ===== CTA BAND ===== */
.cta-section { background: linear-gradient(135deg, var(--primary-color), var(--primary-dark)); color: #fff; padding: var(--section-y) 0; }
.cta-content { text-align: center; max-width: 720px; margin: 0 auto; }
.cta-title { color: #fff; margin-bottom: var(--spacing-md); }
.cta-subtitle { color: var(--primary-soft); font-size: 1.1rem; margin-bottom: var(--spacing-xl); }
.cta-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--spacing-md); }
.cta-section .btn-primary { background: #fff; color: var(--primary-dark); box-shadow: none; }
.cta-section .btn-primary:hover { background: var(--primary-soft); }

/* ===== CONTACT ===== */
.contact-layout { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: var(--spacing-3xl); align-items: start; }
.contact-side h2, .contact-form-container h2 { font-size: 1.5rem; margin-bottom: var(--spacing-md); }
.contact-intro { margin-bottom: var(--spacing-xl); }
.contact-methods { display: grid; gap: var(--spacing-md); margin-bottom: var(--spacing-xl); }
.contact-method { display: flex; align-items: center; gap: 1rem; padding: 1rem; border: 1px solid var(--gray-200); border-radius: var(--radius-xl); background: #fff; text-decoration: none; color: inherit; transition: border-color var(--transition-fast), box-shadow var(--transition-fast); }
a.contact-method:hover { border-color: var(--primary-light); box-shadow: var(--shadow-md); }
.method-icon { flex: 0 0 48px; width: 48px; height: 48px; border-radius: 12px; background: var(--primary-color); color: #fff; display: grid; place-items: center; font-size: 1.2rem; }
.method-content { display: flex; flex-direction: column; line-height: 1.35; }
.method-content strong { color: var(--gray-900); }
.method-content span { color: var(--primary-color); font-weight: 500; }
.method-content small { color: var(--gray-500); }
.social-links-contact h3 { font-size: 1rem; margin-bottom: 0.75rem; }
.social-icons, .social-links { display: flex; gap: 0.6rem; }
.social-icons a, .social-links a { width: 42px; height: 42px; border-radius: 10px; display: grid; place-items: center; background: var(--gray-100); color: var(--gray-700); text-decoration: none; transition: all var(--transition-fast); }
.social-icons a:hover, .social-links a:hover { background: var(--primary-color); color: #fff; transform: translateY(-2px); }

.contact-form-container { background: #fff; border: 1px solid var(--gray-200); border-radius: var(--radius-2xl); padding: var(--spacing-xl); box-shadow: var(--shadow-md); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--spacing-md); }
.form-group { margin-bottom: var(--spacing-md); }
.form-group label { display: block; font-weight: 600; font-size: 0.9rem; color: var(--gray-800); margin-bottom: 0.4rem; }
.form-group input, .form-group select, .form-group textarea {
    width: 100%; padding: 0.75rem 0.9rem; border: 1px solid var(--gray-300); border-radius: var(--radius-md);
    font-family: inherit; font-size: 0.95rem; color: var(--gray-900); background: #fff; transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { outline: none; border-color: var(--primary-color); box-shadow: 0 0 0 3px rgb(37 99 235 / 0.15); }
.form-group input[aria-invalid="true"], .form-group textarea[aria-invalid="true"] { border-color: var(--error-color); }
.form-group textarea { resize: vertical; min-height: 140px; }
.checkbox-label { display: flex; align-items: center; gap: 0.6rem; font-weight: 500 !important; color: var(--gray-700) !important; cursor: pointer; }
.checkbox-label input { width: auto; }
.form-error { color: var(--error-color); font-size: 0.9rem; margin-bottom: var(--spacing-md); }
.hp-field { position: absolute; left: -9999px; top: auto; width: 1px; height: 1px; overflow: hidden; }
.btn-loading { display: inline-flex; align-items: center; gap: 0.5rem; }

.faq-list { display: grid; gap: 0.75rem; max-width: 820px; }
.faq-item { background: #fff; border: 1px solid var(--gray-200); border-radius: var(--radius-lg); padding: 0 1.25rem; }
.faq-item summary { cursor: pointer; list-style: none; padding: 1rem 0; font-family: var(--font-secondary); font-weight: 600; color: var(--gray-900); display: flex; justify-content: space-between; align-items: center; gap: 1rem; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; font-size: 1.4rem; color: var(--primary-color); line-height: 1; transition: transform var(--transition-fast); }
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item p { padding-bottom: 1rem; margin: 0; }

/* ===== TESTIMONIALS ===== */
.testimonials-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: var(--spacing-xl); }
.testimonial-card { background: #fff; border: 1px solid var(--gray-200); border-radius: var(--radius-xl); padding: var(--spacing-xl); position: relative; }
.quote-icon { color: var(--primary-soft); font-size: 1.8rem; margin-bottom: 0.5rem; }
.testimonial-text { font-style: italic; color: var(--gray-700); }
.testimonial-author { display: flex; justify-content: space-between; align-items: center; gap: 1rem; margin-top: var(--spacing-md); }
.author-name { font-size: 1rem; margin-bottom: 0.1rem; }
.author-position { font-size: 0.85rem; color: var(--gray-500); margin: 0; }
.testimonial-rating { color: var(--accent-color); font-size: 0.85rem; white-space: nowrap; }
.empty-state { text-align: center; max-width: 560px; margin: 0 auto; padding: var(--spacing-2xl) 0; }
.empty-state i { font-size: 2.2rem; color: var(--primary-soft); margin-bottom: var(--spacing-md); }
.empty-state h2 { font-size: 1.5rem; margin-bottom: 0.5rem; }

/* ===== ERROR PAGES ===== */
.error-page { padding: var(--section-y) 0; text-align: center; min-height: 60vh; display: flex; align-items: center; }
.error-page .container { max-width: 640px; }
.error-code { font-family: var(--font-secondary); font-size: 6rem; font-weight: 800; color: var(--primary-color); line-height: 1; margin-bottom: 0.5rem; }
.error-code-warn { color: var(--accent-color); }
.error-page h1 { font-size: 1.9rem; margin-bottom: 1rem; }
.error-page .cta-actions { margin-top: var(--spacing-lg); }

/* ===== FOOTER ===== */
.footer { background: var(--gray-900); color: var(--gray-300); padding: var(--spacing-3xl) 0 0; }
.footer-container { max-width: 1160px; margin: 0 auto; padding: 0 var(--spacing-lg); display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.3fr; gap: var(--spacing-2xl); }
.footer-logo h3 { color: #fff; font-size: 1.4rem; margin-bottom: 0.1rem; }
.footer-logo p { color: var(--gray-400); font-size: 0.9rem; }
.footer-description { color: var(--gray-400); font-size: 0.95rem; max-width: 380px; }
.footer .social-links a { background: rgb(255 255 255 / 0.08); color: var(--gray-200); }
.footer-section h4 { color: #fff; font-size: 0.95rem; margin-bottom: var(--spacing-md); }
.footer-links li { margin-bottom: 0.5rem; }
.footer-links a { color: var(--gray-400); text-decoration: none; font-size: 0.95rem; }
.footer-links a:hover { color: #fff; }
.footer-contact p { display: flex; align-items: center; gap: 0.6rem; color: var(--gray-400); font-size: 0.93rem; margin-bottom: 0.5rem; }
.footer-contact i { color: var(--primary-light); width: 1rem; text-align: center; }
.footer-contact a { color: var(--gray-300); text-decoration: none; }
.footer-contact a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid rgb(255 255 255 / 0.08); margin-top: var(--spacing-2xl); padding: var(--spacing-lg) 0; }
.footer-bottom-content { max-width: 1160px; margin: 0 auto; padding: 0 var(--spacing-lg); display: flex; justify-content: space-between; flex-wrap: wrap; gap: 0.5rem; }
.footer-bottom p { color: var(--gray-500); font-size: 0.85rem; margin: 0; }
.footer-built a { color: var(--gray-400); }

/* ===== BACK TO TOP · LIGHTBOX · NOTIFICATIONS ===== */
.back-to-top { position: fixed; right: 1.25rem; bottom: 1.25rem; width: 46px; height: 46px; border-radius: 50%; border: 0; background: var(--primary-color); color: #fff; box-shadow: var(--shadow-lg); cursor: pointer; opacity: 0; visibility: hidden; transform: translateY(10px); transition: all var(--transition-normal); z-index: 900; }
.back-to-top.visible { opacity: 1; visibility: visible; transform: none; }
.back-to-top:hover { background: var(--primary-dark); }

.lightbox { position: fixed; inset: 0; z-index: 1500; background: rgb(15 23 42 / 0.92); display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 1rem; }
.lightbox[hidden] { display: none; }
.lightbox img { display: block; width: auto; height: auto; max-width: min(100%, 94vw); max-height: 80vh; max-height: 80dvh; object-fit: contain; border-radius: var(--radius-lg); box-shadow: var(--shadow-xl); }
.lightbox-caption { color: var(--gray-300); margin-top: 1rem; font-size: 0.95rem; }
.lightbox-close { position: absolute; top: 1rem; right: 1.25rem; background: none; border: 0; color: #fff; font-size: 2.4rem; line-height: 1; cursor: pointer; }

.notification { position: fixed; top: 1.25rem; right: 1.25rem; z-index: 2000; max-width: 380px; padding: 1rem 1.25rem; border-radius: var(--radius-lg); color: #fff; box-shadow: var(--shadow-lg); transform: translateX(120%); transition: transform var(--transition-normal); }
.notification.show { transform: none; }
.notification-success { background: var(--success-color); }
.notification-error { background: var(--error-color); }
.notification-info { background: var(--primary-light); }
.notification-content { display: flex; align-items: center; gap: 1rem; }
.notification-close { background: none; border: 0; color: #fff; font-size: 1.4rem; line-height: 1; cursor: pointer; margin-left: auto; }

/* ===== ADMIN-COMPAT (admin/layout.html uses these) ===== */
.card { background: #fff; border-radius: var(--radius-xl); box-shadow: var(--shadow-md); padding: var(--spacing-xl); }

/* ===== ANIMATION ===== */
/* ===== MOTION =====
   Elements get a random entrance (data-anim) each time they scroll into view; main.js re-rolls the
   variant whenever an element leaves the screen, so no two visits look the same. */
[data-anim] {
    opacity: 0;
    transition: opacity var(--anim-duration, 1.5s) ease-out var(--anim-delay, 0ms),
                transform var(--anim-duration, 1.5s) cubic-bezier(0.22, 0.9, 0.3, 1) var(--anim-delay, 0ms),
                filter var(--anim-duration, 1.5s) ease var(--anim-delay, 0ms);
}
[data-anim="up"] { transform: translate3d(0, 48px, 0); }
[data-anim="down"] { transform: translate3d(0, -48px, 0); }
[data-anim="left"] { transform: translate3d(-56px, 0, 0); }
[data-anim="right"] { transform: translate3d(56px, 0, 0); }
[data-anim="zoom"] { transform: scale(0.8); }
[data-anim="zoom-out"] { transform: scale(1.12); }
[data-anim="blur"] { filter: blur(14px); transform: scale(1.04); }
[data-anim="tilt"] { transform: rotate(-3deg) translate3d(0, 28px, 0); transform-origin: left bottom; }
[data-anim="flip"] { transform: perspective(900px) rotateX(18deg) translate3d(0, 22px, 0); transform-origin: top center; }
[data-anim="rise-left"] { transform: translate3d(-26px, 32px, 0) scale(0.95); }
[data-anim="rise-right"] { transform: translate3d(26px, 32px, 0) scale(0.95); }
[data-anim].in { opacity: 1; transform: none; filter: none; }
[data-anim].anim-reset { transition: none !important; }

/* Continuous, gentle movement so the page never feels frozen. */
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-9px); } }
@keyframes float-alt { 0%, 100% { transform: translateY(0) rotate(0); } 50% { transform: translateY(7px) rotate(-1deg); } }
@keyframes kenburns { from { transform: scale(1) translate3d(0, 0, 0); } to { transform: scale(1.09) translate3d(var(--kb-x, 0), var(--kb-y, 0), 0); } }
.hero-portrait { animation: float 7s ease-in-out infinite; }
.hero-badge-top { animation: float-alt 6s ease-in-out infinite; }
.hero-badge-bottom { animation: float 5.2s ease-in-out infinite 0.8s; }
.photo-mosaic figure.in img, .about-teaser-photos img.in { animation: kenburns var(--kb-duration, 16s) ease-in-out infinite alternate; animation-delay: var(--kb-delay, 0s); }
.photo-mosaic figure:hover img { transform: none; }
@media (prefers-reduced-motion: reduce) {
    [data-anim] { opacity: 1 !important; transform: none !important; filter: none !important; transition: none !important; }
    .hero-portrait, .hero-badge-top, .hero-badge-bottom, .photo-mosaic figure.in img, .about-teaser-photos img.in { animation: none !important; }
    html { scroll-behavior: auto; }
    *, *::before, *::after { animation: none !important; transition-duration: 0.01ms !important; }
    .reveal { opacity: 1; transform: none; }
}

/* ===== UTILITIES ===== */
.text-center { text-align: center; }
.mb-0 { margin-bottom: 0; }
.hidden { display: none; }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .hero-grid { grid-template-columns: 1fr 0.8fr; gap: var(--spacing-2xl); }
    .hero-badge-top { left: -6%; }
    .hero-badge-bottom { right: -6%; }
    .photo-mosaic { grid-auto-rows: 180px; }
    .footer-container { grid-template-columns: 1fr 1fr; }
    .project-layout { grid-template-columns: 1fr; }
    .side-card { position: static; }
}

@media (max-width: 860px) {
    .nav-toggle { display: flex; }
    .nav-menu {
        position: fixed; top: var(--nav-height); left: 0; right: 0; bottom: 0;
        flex-direction: column; align-items: stretch; gap: 0.25rem; padding: var(--spacing-lg);
        background: #fff; border-top: 1px solid var(--gray-200); box-shadow: var(--shadow-xl);
        transform: translateX(100%); visibility: hidden; transition: transform var(--transition-normal), visibility 0s var(--transition-normal); overflow-y: auto; z-index: 1001;
    }
    .nav-menu.active { transform: none; visibility: visible; transition: transform var(--transition-normal); }
    .nav-link { padding: 0.9rem 1rem; font-size: 1.05rem; text-align: center; }
    .nav-cta { margin: 0.5rem 0 0; }
    body.menu-open { overflow: hidden; }

    .hero-grid { grid-template-columns: 1fr; text-align: center; min-height: 0; }
    .hero-copy { order: 2; }
    .hero-visual { order: 1; width: min(70%, 320px); }
    .hero-subtitle { margin-left: auto; margin-right: auto; }
    .hero-actions, .hero-stack { justify-content: center; }
    .hero-badge-top { top: 4%; left: 0.6rem; }
    .hero-badge-bottom { bottom: 4%; right: 0.6rem; }
    .hero-visual::before { inset: 14px -10px -10px 14px; }

    .facts-grid { grid-template-columns: repeat(2, 1fr); }
    .fact:nth-child(odd) { border-left: 0; }
    .fact:nth-child(n+3) { border-top: 1px solid rgb(255 255 255 / 0.08); }

    .featured-grid { grid-template-columns: 1fr; }
    .showcase-item { grid-template-columns: 1fr; gap: var(--spacing-lg); }
    .showcase-item-reverse .showcase-media { order: 0; }
    .about-teaser, .about-intro, .contact-layout { grid-template-columns: minmax(0, 1fr); }
    .about-teaser > *, .about-intro > *, .contact-layout > * { min-width: 0; }
    .about-intro-photo img { position: static; display: block; width: 100%; max-width: 360px; margin: 0 auto; }
    .about-teaser-photos img:nth-child(2) { transform: none; }
    .project-media-frame { margin-top: 0; }
}

@media (max-width: 560px) {
    .container, .nav-container { padding: 0 var(--spacing-md); }
    .form-row { grid-template-columns: 1fr; }
    .photo-mosaic { grid-template-columns: repeat(2, 1fr); grid-auto-rows: 170px; gap: 0.6rem; }
    .photo-mosaic .span-2x2 { grid-column: span 2; grid-row: span 2; }
    .photo-mosaic .span-wide { grid-column: span 2; }
    .footer-container { grid-template-columns: 1fr; }
    .hero-badge { display: none; }
    .hero-visual::before { inset: 12px -12px -12px 12px; }
    .project-pager { flex-direction: column; }
    .pager-next { text-align: left; align-items: flex-start; }
    .contact-form-container { padding: var(--spacing-lg); }
    .btn { width: 100%; }
    .hero-actions .btn, .cta-actions .btn { width: auto; flex: 1 1 auto; }
}