:root {
    --bg-color: #0f172a;
    --card-bg: rgba(30, 41, 59, 0.62);
    --accent-blue: #38bdf8;
    --accent-green: #10b981;
    --accent-red: #ef4444;
    --text-main: #f1f5f9;
    --text-dim: #94a3b8;
    --white: #ffffff;
    --border: #334155;
    --shadow: 0 18px 45px rgba(2, 6, 23, 0.28);
}

* { box-sizing: border-box; }

body {
    font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background:
        radial-gradient(circle at top left, rgba(56, 189, 248, 0.12), transparent 30%),
        radial-gradient(circle at top right, rgba(16, 185, 129, 0.08), transparent 28%),
        var(--bg-color);
    color: var(--text-main);
    margin: 0;
    padding: 0;
    line-height: 1.6;
}

.container { max-width: 1060px; margin: 0 auto; padding: 40px 20px; }

header { text-align: center; padding-bottom: 40px; border-bottom: 1px solid var(--border); margin-bottom: 40px; }

h1 { font-size: clamp(2rem, 5vw, 2.8rem); margin: 0; color: var(--white); letter-spacing: -0.035em; }

.tagline { font-size: 1.2rem; color: var(--accent-blue); font-weight: 600; margin-top: 10px; }

.lede { max-width: 780px; margin: 18px auto 0; color: var(--text-dim); font-size: 1.05rem; }

.cta-container { display: flex; justify-content: center; gap: 15px; margin-top: 25px; flex-wrap: wrap; }

.btn { text-decoration: none; padding: 12px 24px; border-radius: 8px; font-weight: 700; font-size: 0.9rem; transition: all 0.2s; display: inline-flex; align-items: center; border: 1px solid transparent; }
.btn-blue { background-color: #0077b5; color: white; }
.btn-pdf { background-color: var(--accent-red); color: white; }
.btn-vcard { background-color: var(--accent-green); color: white; }
.btn-ghost { background: transparent; color: var(--text-main); border-color: var(--border); }
.btn:hover { opacity: 0.94; transform: translateY(-2px); }

section { margin-bottom: 60px; }

h2 { font-size: 1.5rem; color: var(--white); border-left: 4px solid var(--accent-blue); padding-left: 15px; margin-bottom: 30px; text-transform: uppercase; letter-spacing: 0.05em; }
h3 { margin-top: 0; color: var(--accent-blue); font-size: 1.25rem; margin-bottom: 15px; }

.card { background: var(--card-bg); padding: 25px; border-radius: 14px; border: 1px solid var(--border); transition: border-color 0.3s, transform 0.2s, box-shadow 0.2s; box-shadow: var(--shadow); }
.card:hover { border-color: var(--accent-blue); transform: translateY(-2px); }
.card p { margin-bottom: 0; font-size: 0.96rem; color: var(--text-main); }
.card ul { padding-left: 20px; margin: 0; }
.card li { margin-bottom: 10px; color: var(--text-dim); font-size: 0.95rem; }
.card strong { color: var(--text-main); }

.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 25px; }

.stat-card { text-align: center; }
.stat-number { display: block; font-size: 2rem; font-weight: 800; color: var(--accent-blue); }
.stat-label { font-size: 0.85rem; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.05em; }

.project-card { display: flex; flex-direction: column; min-height: 285px; }
.project-card h3 a { color: var(--accent-blue); text-decoration: none; }
.project-card h3 a:hover { text-decoration: underline; }
.project-meta { font-size: 0.85rem; color: var(--text-dim); margin-bottom: 15px; display: block; font-style: italic; }
.project-link { margin-top: auto; padding-top: 18px; color: var(--accent-blue); font-weight: 700; text-decoration: none; }
.project-link:hover { text-decoration: underline; }

.project-thumb { margin: 4px 0 18px; border: 1px solid var(--border); border-radius: 12px; overflow: hidden; background: rgba(15, 23, 42, 0.7); }
.project-thumb img { width: 100%; display: block; min-height: 150px; object-fit: cover; }

.tech-tags, .pill-row { display: flex; flex-wrap: wrap; gap: 10px; }
.tag, .pill { background: var(--border); color: var(--text-main); padding: 6px 14px; border-radius: 20px; font-size: 0.85rem; transition: background 0.2s; }
.tag:hover, .pill:hover { background: var(--accent-blue); color: var(--bg-color); }

.hero-card { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 28px; align-items: center; }
.hero-card img { width: 100%; border-radius: 12px; border: 1px solid var(--border); }
.kicker { color: var(--accent-blue); font-weight: 800; text-transform: uppercase; letter-spacing: 0.08em; font-size: 0.8rem; }
.metric-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 18px; }
.metric { padding: 22px; border: 1px solid var(--border); border-radius: 14px; background: rgba(15, 23, 42, 0.55); text-align: center; }
.metric strong { display: block; font-size: 1.8rem; color: var(--accent-blue); }
.timeline { border-left: 2px solid var(--border); padding-left: 24px; }
.timeline-item { margin-bottom: 22px; position: relative; }
.timeline-item:before { content: ''; position: absolute; left: -31px; top: 7px; width: 12px; height: 12px; border-radius: 50%; background: var(--accent-blue); }

footer { text-align: center; padding-top: 40px; border-top: 1px solid var(--border); color: var(--text-dim); font-size: 0.9rem; }

@media (max-width: 768px) {
    .grid-3, .grid-2, .hero-card { grid-template-columns: 1fr; }
    .container { padding: 28px 16px; }
}