:root {
    --primary-dark: #0f172a;
    --secondary-dark: #1e293b;
    --accent-blue: #38bdf8;
    --text-main: #334155;
    --text-muted: #64748b;
    --text-cyan: #22d3ee;
}

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    color: var(--text-main);
    background-color: #ffffff;
    padding-top: 56px;
}

/* Navbar */
.navbar {
    background-color: rgba(15, 23, 42, 0.95) !important;
    backdrop-filter: blur(8px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.tech-logo { font-weight: 800; letter-spacing: 1px; color: #fff !important; }
.tech-logo span { color: var(--accent-blue); }

/* Hero section compacte */
.hero-section {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    padding: 60px 20px;
}
.lead-text { font-size: 1.8rem; color: var(--accent-blue); font-weight: 300; }
.subtitle { color: #94a3b8; font-size: 1rem; }

/* Profile Circle */
.profile-frame {
    width: 130px;
    height: 130px;
    border-radius: 50%;
    padding: 3px;
    background: linear-gradient(135deg, var(--primary-dark), var(--accent-blue));
}
.profile-img { width: 100%; height: 100%; border-radius: 50%; object-fit: cover; background: #fff;}

/* Titles and Descs */
.section-title { font-weight: 800; color: var(--primary-dark); }
.column-title { font-size: 1.25rem; font-weight: 700; color: var(--secondary-dark); }
.section-desc { font-size: 1.2rem; line-height: 1.6; color: var(--text-main); }
.text-cyan { color: var(--text-cyan) !important; }

/* Custom Dual Timeline Components */
.timeline-v2 {
    border-left: 2px solid #cbd5e1;
    padding-left: 10px;
}
.timeline-block {
    position: relative;
    border: 1px solid #e2e8f0;
    transition: transform 0.2s ease;
}
.timeline-block:hover {
    transform: translateX(4px);
    border-left: 3px solid var(--accent-blue);
}

/* Cards configurations */
.project-card {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.02);
    transition: all 0.25s ease;
}
.project-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.06);
    border-color: var(--accent-blue);
}
.highlight-card {
    border-left: 4px solid var(--primary-dark);
}

/* Small components */
.skill-tag-sm {
    background-color: #f1f5f9;
    color: #475569;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 3px 8px;
    border-radius: 4px;
}
.max-width-article { max-width: 800px; }
.code-block { font-family: 'Fira Code', monospace; overflow-x: auto; font-size: 0.85rem;}