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

:root {
    --bg: #f8f9fa; --surface: #ffffff; --border: #e1e4e8;
    --accent: #5b51d8; --accent2: #00b894; --text: #24292e;
    --muted: #586069; --tag-bg: #f1f3f5; --shadow: rgba(0,0,0,0.08);
}
[data-theme="dark"] {
    --bg: #0f1117; --surface: #1a1d27; --border: #2d3140;
    --accent: #7c6ff7; --accent2: #00cba9; --text: #e6edf3;
    --muted: #8b949e; --tag-bg: #21262d; --shadow: rgba(0,0,0,0.3);
}

body {
    background: var(--bg); color: var(--text);
    font-family: 'Segoe UI', system-ui, sans-serif;
    font-size: 16px; line-height: 1.6;
    transition: background 0.3s, color 0.3s;
}
[dir="rtl"] body { font-family: 'Segoe UI', Tahoma, system-ui, sans-serif; }

a { color: var(--accent2); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── Top Bar ── */
.top-bar {
    position: sticky; top: 0; z-index: 100;
    background: var(--surface); border-bottom: 1px solid var(--border);
    padding: 10px 32px; display: flex; justify-content: flex-end; gap: 10px;
    box-shadow: 0 1px 4px var(--shadow); transition: background 0.3s;
}
.top-btn {
    display: inline-flex; align-items: center; gap: 7px;
    padding: 7px 16px; border-radius: 8px; font-size: 14px;
    font-weight: 500; cursor: pointer; border: 1px solid var(--border);
    background: var(--tag-bg); color: var(--text); transition: all 0.2s;
}
.top-btn:hover { border-color: var(--accent); color: var(--accent); }
.top-btn svg { flex-shrink: 0; }

/* ── Layout ── */
.page { max-width: 1100px; margin: 0 auto; padding: 48px 32px 100px; }

/* ── Header ── */
header {
    display: flex; flex-direction: column; gap: 8px;
    padding-bottom: 40px; border-bottom: 2px solid var(--border); margin-bottom: 48px;
}
header h1 {
    font-size: 2.8rem; font-weight: 700; letter-spacing: -0.5px;
    background: linear-gradient(90deg, var(--accent), var(--accent2));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}
.contact { display: flex; flex-wrap: wrap; gap: 20px; margin-top: 12px; }
.contact span {
    display: flex; align-items: center; gap: 7px;
    color: var(--muted); font-size: 15px;
}
.contact span svg { flex-shrink: 0; }

/* ── Summary ── */
.summary-text {
    background: var(--surface); border: 1px solid var(--border);
    border-left: 4px solid transparent; border-radius: 12px;
    padding: 20px 24px; color: var(--muted); font-size: 15.5px;
    line-height: 1.7; margin-bottom: 0; box-shadow: 0 1px 3px var(--shadow);
    transition: all 0.2s;
}
.summary-text:hover { 
    border-left-color: var(--accent); 
    box-shadow: 0 4px 12px var(--shadow); 
}


/* ── Sections ── */
section { margin-bottom: 48px; }
.section-title {
    font-size: 12px; font-weight: 700; letter-spacing: 2px;
    text-transform: uppercase; color: var(--accent); margin-bottom: 22px;
    display: flex; align-items: center; gap: 12px;
}
.section-title::after { content: ''; flex: 1; height: 1px; background: var(--border); }

/* ── Cards ── */
.card {
    background: var(--surface); border: 1px solid var(--border);
    border-left: 4px solid transparent; border-radius: 12px;
    padding: 24px 28px; margin-bottom: 16px; transition: all 0.2s;
    box-shadow: 0 1px 3px var(--shadow);
}
.card:hover { border-left-color: var(--accent); box-shadow: 0 4px 12px var(--shadow); }
.card-header {
    display: flex; justify-content: space-between; align-items: flex-start;
    flex-wrap: wrap; gap: 6px; margin-bottom: 8px;
}
.card-title { font-weight: 600; font-size: 17px; color: var(--text); }
.card-sub { color: var(--accent2); font-size: 15px; }
.card-meta { color: var(--muted); font-size: 14px; text-align: right; }
.card ul {
    margin-top: 12px; padding-left: 20px; color: var(--muted);
    font-size: 15px; display: flex; flex-direction: column; gap: 5px;
}
[dir="rtl"] .card ul { padding-left: 0; padding-right: 20px; }
.card p { color: var(--muted); font-size: 15px; margin-top: 10px; }

/* ── Skills ── */
.skills-grid {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 16px;
}
.skill-card {
    background: var(--surface); border: 1px solid var(--border);
    border-left: 4px solid transparent; border-radius: 12px;
    padding: 18px 20px; transition: all 0.2s; box-shadow: 0 1px 3px var(--shadow);
}
.skill-card:hover { border-left-color: var(--accent2); box-shadow: 0 4px 12px var(--shadow); }
.skill-name { font-weight: 600; font-size: 15.5px; margin-bottom: 7px; color: var(--text); }
.skill-keywords { color: var(--muted); font-size: 14px; }

/* ── Tags ── */
.tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.tag {
    background: var(--tag-bg); border: 1px solid var(--border);
    border-radius: 5px; padding: 4px 11px; font-size: 13px; color: var(--muted);
}

/* ── Certificates ── */
.certs-grid {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 20px;
}
.cert-card {
    background: var(--surface); border: 1px solid var(--border);
    border-radius: 12px; overflow: hidden; transition: all 0.2s;
    cursor: pointer; box-shadow: 0 1px 3px var(--shadow);
}
.cert-card:hover {
    border-color: var(--accent2); box-shadow: 0 4px 12px var(--shadow);
    transform: translateY(-2px);
}
.cert-img-wrap {
    width: 100%; aspect-ratio: 16/10; background: var(--tag-bg);
    display: flex; align-items: center; justify-content: center; overflow: hidden;
}
.cert-img-wrap img { width: 100%; height: 100%; object-fit: cover; display: block; }
.cert-placeholder {
    display: flex; flex-direction: column; align-items: center;
    gap: 10px; color: var(--muted); font-size: 14px;
}
.cert-info { padding: 16px 18px; }
.cert-info strong { font-size: 15.5px; display: block; margin-bottom: 3px; color: var(--text); }
.cert-info span { color: var(--muted); font-size: 14px; }

/* ── Lightbox ── */
.lightbox {
    display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.85);
    z-index: 1000; align-items: center; justify-content: center; padding: 24px;
}
.lightbox.open { display: flex; }
.lightbox img {
    max-width: 90vw; max-height: 88vh; border-radius: 8px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.6);
}
.lightbox-close {
    position: fixed; top: 20px; right: 24px; background: none;
    border: none; color: #fff; font-size: 32px; cursor: pointer; line-height: 1;
}

/* ── Project link ── */
.project-link {
    display: inline-flex; align-items: center; gap: 6px;
    font-size: 14px; margin-top: 10px; color: var(--accent2);
}

/* ── Responsive ── */
@media (max-width: 768px) {
    .page { padding: 40px 20px 80px; }
    header h1 { font-size: 2.2rem; }
    .card { padding: 20px 22px; }
    .skills-grid { grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); }
    .certs-grid { grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
    .top-bar { padding: 10px 20px; }
}
@media (max-width: 560px) {
    header h1 { font-size: 1.7rem; }
    .card-meta { text-align: left; }
    body { font-size: 15px; }
    .top-btn span { display: none; }
}

/* ── Print ── */
@media print {
    .top-bar, .lightbox { display: none !important; }
    body { background: #fff !important; color: #000 !important; font-size: 12pt; }
    .page { max-width: 100%; padding: 0; }
    .card, .skill-card, .cert-card, .summary-box {
        box-shadow: none !important; border: 1px solid #ccc !important;
        border-left: 3px solid #5b51d8 !important;
        break-inside: avoid; page-break-inside: avoid;
    }
    header { border-bottom: 2px solid #000; }
    .section-title { color: #000 !important; }
    .cert-img-wrap { display: none; }
    a { color: #000 !important; text-decoration: none !important; }
    header h1 {
        background: none !important; -webkit-text-fill-color: #000 !important;
        color: #000 !important; font-size: 22pt;
    }
    section { margin-bottom: 24px; }
}