/* ===== VARIABLES & RESET ===== */
:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #111118;
    --bg-card: #16161f;
    --accent: #e8503a;
    --accent-glow: rgba(232, 80, 58, 0.3);
    --accent-secondary: #f0a030;
    --text-primary: #e8e6e3;
    --text-secondary: #9a9a9e;
    --text-muted: #5c5c66;
    --border: #2a2a35;
    --gradient-1: linear-gradient(135deg, #e8503a, #f0a030);
    --font-display: 'Syne', sans-serif;
    --font-body: 'Source Sans 3', sans-serif;
}
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
html {
    font-size: 62.5%;
    scroll-behavior: smooth;
    overflow-x: hidden;
}
html::-webkit-scrollbar { width: 6px; }
html::-webkit-scrollbar-track { background: var(--bg-primary); }
html::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 3px; }
body {
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-body);
    line-height: 1.6;
}

/* ===== LIGHT THEME ===== */
html.light {
    --bg-primary: #f5f5f7;
    --bg-secondary: #ffffff;
    --bg-card: #f0f0f3;
    --accent: #e8503a;
    --accent-glow: rgba(232, 80, 58, 0.2);
    --accent-secondary: #c47a20;
    --text-primary: #1a1a2e;
    --text-secondary: #4a4a5a;
    --text-muted: #8a8a9a;
    --border: #d8d8e0;
}
html.light header { background: rgba(245, 245, 247, 0.9); }
html.light .navbar.open { background: var(--bg-secondary); }
html.light .social-icons a { background: #fff; }
html.light .skill-card { background: rgba(0,0,0,0.03); }

/* ===== SECTIONS COMMON ===== */
section { min-height: 100vh; padding: 10rem 6%; }
.section-header {
    text-align: center;
    margin-bottom: 6rem;
}
.section-header .label {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-bottom: 1rem;
}
.section-header h2 {
    font-family: var(--font-display);
    font-size: 4.5rem;
    font-weight: 800;
    letter-spacing: -1.5px;
}
.section-header h2 span {
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===== BUTTONS ===== */
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
    padding: 1.4rem 3rem;
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: #fff;
    background: var(--accent);
    border: none;
    border-radius: 10px;
    cursor: pointer;
    text-decoration: none;
    transition: 0.3s;
    box-shadow: 0 4px 20px var(--accent-glow);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px var(--accent-glow);
}
.btn-outline {
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
    padding: 1.4rem 3rem;
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    background: transparent;
    border: 2px solid var(--border);
    border-radius: 10px;
    cursor: pointer;
    text-decoration: none;
    transition: 0.3s;
}
.btn-outline:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-2px);
}

/* ===== SCROLL TOP ===== */
#scroll-top {
    position: fixed;
    bottom: 3rem;
    right: 3rem;
    width: 4.5rem;
    height: 4.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent);
    color: #fff;
    border-radius: 12px;
    font-size: 2rem;
    text-decoration: none;
    opacity: 0;
    pointer-events: none;
    transition: 0.3s;
    box-shadow: 0 4px 15px var(--accent-glow);
    z-index: 999;
}
#scroll-top.active {
    opacity: 1;
    pointer-events: all;
}