@import url('https://fonts.googleapis.com/css2?family=Cairo:wght@600;800&family=IBM+Plex+Sans+Arabic:wght@400;500&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
    --bg: #F6F5F2;
    --bg-alt: #ECEAE5;
    --surface: rgba(255, 255, 255, 0.65);
    --text: #16181B;
    --text-dim: #6B7076;
    --border: rgba(22, 24, 27, 0.1);
    --accent: #B8860B;
    --accent-soft: rgba(184, 134, 11, 0.12);
    --shadow: rgba(22, 24, 27, 0.08);
    --shadow-glow: rgba(184, 134, 11, 0.15);
    --success: #2e7d32;
    --progress: #ed6c02;
    --grid-pattern: radial-gradient(var(--border) 1px, transparent 1px);
}

[data-theme="dark"] {
    --bg: #0B0D10;
    --bg-alt: #101317;
    --surface: rgba(20, 23, 28, 0.55);
    --text: #ECECEA;
    --text-dim: #9AA0A6;
    --border: rgba(255, 255, 255, 0.08);
    --accent: #E3B341;
    --accent-soft: rgba(227, 179, 65, 0.12);
    --shadow: rgba(0, 0, 0, 0.4);
    --shadow-glow: rgba(227, 179, 65, 0.25);
    --success: #66bb6a;
    --progress: #ffa726;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'IBM Plex Sans Arabic', 'Cairo', sans-serif;
    background-color: var(--bg);
    background-image: var(--grid-pattern);
    background-size: 24px 24px;
    color: var(--text);
    line-height: 1.8;
    transition: background-color 0.5s ease, color 0.5s ease;
    overflow-x: hidden;
    padding-top: 56px;
}

/* في حال كانت اللغة إنجليزية، نغير الخط الأساسي */
html[dir="ltr"] body {
    font-family: 'JetBrains Mono', 'Segoe UI', sans-serif;
}

a { color: inherit; }

/* مهم للوصول: أي حدا بيتصفح بالكيبورد لازم يشوف وين هو واقف */
:focus-visible {
    outline: 2px dashed var(--accent);
    outline-offset: 4px;
}

.top-nav {
    position: fixed;
    top: 0;
    inset-inline-start: 0;
    inset-inline-end: 0;
    z-index: 100;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    padding: 12px 24px;
    background: var(--surface);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 8px 32px var(--shadow);
    overflow-x: auto;
}

.nav-links {
    display: flex;
    gap: 6px;
    flex-wrap: nowrap;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-dim);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.8rem;
    font-weight: 500;
    white-space: nowrap;
    padding: 6px 12px;
    border-radius: 8px;
    transition: background 0.3s ease, color 0.3s ease;
}

.nav-links a:hover { background: var(--accent-soft); color: var(--accent); }

.controls {
    display: flex;
    gap: 8px;
    flex-shrink: 0;
}

.icon-btn, .lang-btn {
    background: transparent;
    border: none;
    color: var(--text-dim);
    cursor: pointer;
    font-family: 'JetBrains Mono', monospace;
    font-weight: 500;
    padding: 6px 12px;
    border-radius: 8px;
    transition: background 0.3s ease, color 0.3s ease;
}

.icon-btn:hover, .lang-btn:hover { background: var(--accent-soft); color: var(--accent); }

.header {
    background: linear-gradient(180deg, var(--bg-alt) 0%, transparent 100%);
    border-bottom: 1px solid var(--border);
    padding: 50px 6% 70px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    min-height: 380px;
}

.header-content {
    max-width: 58%;
    z-index: 2;
}

.header h1 {
    font-family: 'Cairo', sans-serif;
    font-size: 3.5rem;
    color: transparent;
    background: linear-gradient(120deg, var(--text) 20%, var(--accent) 50%, var(--text) 80%);
    background-size: 200% auto;
    -webkit-background-clip: text;
    background-clip: text;
    animation: shine 4s linear infinite;
}

html[dir="ltr"] .header h1 { font-family: 'JetBrains Mono', sans-serif; font-weight: 800; }

.contact-links { display: flex; gap: 16px; margin-top: 24px; flex-wrap: wrap; scroll-margin-top: 76px; }

.contact-btn {
    position: relative;
    text-decoration: none;
    color: var(--accent);
    border: 1.5px solid var(--accent);
    padding: 8px 20px;
    border-radius: 8px;
    overflow: hidden;
    z-index: 1;
    transition: color 0.4s ease;
}

.contact-btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--accent);
    transform: scaleX(0);
    transform-origin: inline-end;
    transition: transform 0.4s ease;
    z-index: -1;
}
.contact-btn:hover { color: var(--bg); box-shadow: 0 8px 20px var(--shadow-glow); }
.contact-btn:hover::before { transform: scaleX(1); }

/* زر تحميل السيرة الذاتية - بارز عن أزرار التواصل العادية */
.cv-buttons {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 20px;
}

.cv-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    color: var(--bg);
    background: var(--accent);
    border: 1.5px solid var(--accent);
    padding: 10px 24px;
    border-radius: 8px;
    font-weight: 600;
    box-shadow: 0 10px 24px var(--shadow-glow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.cv-btn:hover { transform: translateY(-3px); box-shadow: 0 14px 30px var(--shadow-glow); }

.location { margin-top: 18px; font-family: 'JetBrains Mono', monospace; font-size: 0.9rem; color: var(--text-dim); }

.profile-pic {
    height: 300px;
    width: auto;
    object-fit: contain;
    border-radius: 16px;
    filter: drop-shadow(0 15px 25px var(--shadow));
    animation: float 6s ease-in-out infinite;
}

.container { max-width: 1050px; margin: 0 auto; padding: 60px 20px; }

.section {
    background: var(--surface);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border);
    padding: 40px;
    border-radius: 16px;
    margin-bottom: 40px;
    transition: transform 0.3s ease;
    scroll-margin-top: 76px;
}

.section h3 {
    font-family: 'JetBrains Mono', monospace;
    color: var(--accent);
    margin-bottom: 24px;
    display: inline-block;
}
.section h3::before { content: '< '; color: var(--text-dim); }

/* قسم المهارات: تجميعات فرعية داخل قسم واحد */
.skills-block { margin-bottom: 32px; }
.skills-block:last-child { margin-bottom: 0; }

.skills-heading {
    font-family: 'Cairo', sans-serif;
    font-weight: 700;
    font-size: 1.15rem;
    color: var(--text);
    margin-bottom: 16px;
    padding-bottom: 8px;
    border-bottom: 1px dashed var(--border);
}

.skill-group-title {
    font-family: 'JetBrains Mono', monospace;
    color: var(--accent);
    font-size: 0.85rem;
    font-weight: 600;
    margin: 18px 0 10px;
}
.skill-group-title:first-of-type { margin-top: 0; }

.projects-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px; }

.issuer-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    color: var(--text-dim);
    margin-inline-start: 8px;
}

.issuer-badge img {
    width: 15px;
    height: 15px;
    object-fit: contain;
    vertical-align: middle;
}

.project-card {
    display: block;
    text-decoration: none;
    color: inherit;
    background: var(--bg-alt);
    padding: 24px;
    border-radius: 12px;
    border: 1px solid var(--border);
    position: relative;
    transition: transform 0.4s ease, border-color 0.4s ease, box-shadow 0.4s ease;
    transform-style: preserve-3d; /* جاهزة لو حبيت تضيف تأثير Tilt بـ JS لاحقاً */
}

.project-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent);
    box-shadow: 0 15px 30px var(--shadow-glow);
}

/* تنسيق حالة الشهادة (Completed / In Progress) */
.cert-status {
    display: inline-block;
    font-size: 0.8rem;
    padding: 4px 12px;
    border-radius: 999px;
    background: color-mix(in srgb, var(--success) 15%, transparent);
    color: var(--success);
    border: 1px solid var(--success);
    margin-bottom: 12px;
    font-weight: 600;
}
.cert-status.cert-status--progress {
    background: color-mix(in srgb, var(--progress) 15%, transparent);
    color: var(--progress);
    border-color: var(--progress);
}

.project-card h4 { font-family: 'Cairo', sans-serif; font-weight: 700; font-size: 1.2rem; margin-bottom: 10px; color: var(--text); }
.project-card p { font-size: 0.9rem; color: var(--text-dim); margin-bottom: 16px; }

.course-tags {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
}
.course-tags li {
    font-size: 0.8rem;
    background: var(--bg);
    border: 1px solid var(--border);
    padding: 4px 10px;
    border-radius: 6px;
    color: var(--text-dim);
}

.card-link {
    display: inline-block;
    color: var(--accent);
    font-family: 'JetBrains Mono', monospace;
    font-weight: 500;
    font-size: 0.85rem;
}

.experience-list { list-style: none; border-inline-start: 2px solid var(--border); padding-inline-start: 24px; }
.experience-list li { margin-bottom: 24px; position: relative; }
.experience-list li::before {
    content: ''; position: absolute;
    inset-inline-start: -31px; top: 6px;
    width: 12px; height: 12px;
    background: var(--bg);
    border: 2px solid var(--accent);
    border-radius: 50%;
}

.experience-list strong {
    font-family: 'Cairo', sans-serif;
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--text);
    display: block;
    margin-bottom: 8px;
}

.experience-list strong a {
    text-decoration: underline;
    text-decoration-color: var(--accent-soft);
    text-underline-offset: 3px;
    transition: color 0.25s ease, text-decoration-color 0.25s ease;
}
.experience-list strong a:hover { color: var(--accent); text-decoration-color: var(--accent); }

.experience-list p, .experience-list span { color: var(--text-dim); }

@keyframes shine { to { background-position: 200% center; } }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }

/* احترام إعداد "تقليل الحركة" — التوهج اللانهائي والطفو يجب أن يتوقفا لمن يحتاج ذلك */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001ms !important;
    }
    .header h1 { background-position: 0% center; }
    html { scroll-behavior: auto; }
}

.site-footer {
    text-align: center;
    padding: 32px 20px 40px;
    border-top: 1px solid var(--border);
    margin-top: 20px;
}

.site-footer p {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85rem;
    color: var(--text-dim);
}

.site-footer .footer-name {
    color: var(--accent);
    font-weight: 600;
}

.site-footer .last-updated {
    margin-top: 8px;
    font-size: 0.75rem;
    opacity: 0.75;
}

@media (max-width: 768px) {
    .top-nav { padding: 10px 14px; gap: 8px; }
    .nav-links { gap: 2px; }
    .nav-links a { font-size: 0.72rem; padding: 5px 8px; }

    .header {
        flex-direction: column-reverse;
        text-align: center;
        padding: 90px 6% 50px;
        min-height: auto;
    }
    .header-content { max-width: 100%; }
    .header h1 { font-size: 2.3rem; }
    .contact-links { justify-content: center; }
    .cv-buttons { justify-content: center; }
    .profile-pic { height: 200px; }
    .container { padding: 40px 16px; }
    .section { padding: 28px 20px; }
}