/* ═══════════════════════════════════════════
   HAYEL ALTUHAMI — CV Expert Portfolio
   Premium Light/Dark Theme + RTL Arabic-First
   ═══════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Cairo:wght@300;400;500;600;700;800;900&family=Inter:wght@300;400;500;600;700;800;900&family=Poppins:wght@300;400;500;600;700;800;900&display=swap');

/* ── CSS Variables — Light Theme Default ── */
:root {
  --bg-primary: #fafbfe;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f0f2f8;
  --bg-card: rgba(255, 255, 255, 0.85);
  --bg-card-hover: rgba(255, 255, 255, 1);
  --bg-glass: rgba(255, 255, 255, 0.65);
  --bg-glass-border: rgba(0, 0, 0, 0.05);

  --text-primary: #1a1a2e;
  --text-secondary: #4a4a6a;
  --text-muted: #8a8aaa;

  --accent-primary: #c8a64e;
  --accent-secondary: #1a1a2e;
  --accent-gradient: linear-gradient(135deg, #c8a64e, #e8c96e);
  --accent-gradient-dark: linear-gradient(135deg, #1a1a2e, #2a2a4e);
  --accent-glow: rgba(200, 166, 78, 0.12);
  --accent-glow-strong: rgba(200, 166, 78, 0.25);

  --gold: #c8a64e;
  --gold-light: #e8c96e;
  --gold-dark: #a8864e;
  --navy: #1a1a2e;
  --navy-light: #2a2a4e;

  --border-color: rgba(0, 0, 0, 0.06);
  --border-color-hover: rgba(200, 166, 78, 0.3);

  --shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.08);
  --shadow-gold: 0 8px 30px rgba(200, 166, 78, 0.15);
  --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.05);

  --nav-bg: rgba(250, 251, 254, 0.9);
  --nav-blur: 20px;

  --font-ar: 'Cairo', 'Tajawal', sans-serif;
  --font-en: 'Inter', 'Poppins', sans-serif;

  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-medium: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.7s cubic-bezier(0.16, 1, 0.3, 1);

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 50%;

  --max-width: 1200px;
  --section-gap: 120px;
}

/* ── Dark Theme ── */
[data-theme="dark"] {
  --bg-primary: #0d0d14;
  --bg-secondary: #14141e;
  --bg-tertiary: #1c1c2e;
  --bg-card: rgba(28, 28, 46, 0.7);
  --bg-card-hover: rgba(38, 38, 66, 0.9);
  --bg-glass: rgba(255, 255, 255, 0.03);
  --bg-glass-border: rgba(255, 255, 255, 0.06);
  --text-primary: #f0f0f8;
  --text-secondary: #a0a0c0;
  --text-muted: #6a6a8e;
  --accent-glow: rgba(200, 166, 78, 0.1);
  --accent-glow-strong: rgba(200, 166, 78, 0.2);
  --border-color: rgba(255, 255, 255, 0.06);
  --border-color-hover: rgba(200, 166, 78, 0.3);
  --shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.5);
  --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.3);
  --nav-bg: rgba(13, 13, 20, 0.9);
}

/* ── Reset ── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; font-size: 16px; -webkit-font-smoothing: antialiased; }
body { font-family: var(--font-ar); background: var(--bg-primary); color: var(--text-primary); line-height: 1.8; overflow-x: hidden; transition: background var(--transition-medium), color var(--transition-medium); direction: rtl; }
body[data-lang="en"] { font-family: var(--font-en); direction: ltr; }
a { text-decoration: none; color: inherit; transition: color var(--transition-fast); }
ul, ol { list-style: none; }
img { max-width: 100%; display: block; }
::selection { background: var(--gold); color: #fff; }

/* ── Animated Background ── */
#particles-canvas { position: fixed; top: 0; left: 0; width: 100%; height: 100%; z-index: 0; pointer-events: none; }

.gradient-orb { position: fixed; border-radius: 50%; filter: blur(100px); pointer-events: none; z-index: 0; animation: orbFloat 25s ease-in-out infinite; }
.gradient-orb:nth-child(1) { width: 600px; height: 600px; background: var(--gold); opacity: 0.11; top: -150px; right: -150px; }
.gradient-orb:nth-child(2) { width: 450px; height: 450px; background: var(--navy); opacity: 0.07; bottom: -100px; left: -100px; animation-delay: -8s; }
.gradient-orb:nth-child(3) { width: 350px; height: 350px; background: var(--gold-light); opacity: 0.09; top: 40%; left: 30%; animation-delay: -16s; }

[data-theme="dark"] .gradient-orb:nth-child(1) { opacity: 0.08; }
[data-theme="dark"] .gradient-orb:nth-child(2) { opacity: 0.06; }
[data-theme="dark"] .gradient-orb:nth-child(3) { opacity: 0.06; }

@keyframes orbFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(40px, -60px) scale(1.1); }
  66% { transform: translate(-30px, 40px) scale(0.95); }
}

/* ── NAVBAR ── */
.navbar { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; background: var(--nav-bg); backdrop-filter: blur(var(--nav-blur)); -webkit-backdrop-filter: blur(var(--nav-blur)); border-bottom: 1px solid var(--border-color); transition: all var(--transition-medium); padding: 0 2rem; }
.navbar.scrolled { box-shadow: var(--shadow-md); }
.nav-container { max-width: var(--max-width); margin: 0 auto; display: flex; align-items: center; justify-content: space-between; height: 72px; }
.nav-logo { font-size: 1.5rem; font-weight: 800; color: var(--gold); letter-spacing: -0.5px; display: flex; align-items: center; gap: 0.3rem; }
.nav-logo span { color: var(--text-primary); }
.nav-links { display: flex; align-items: center; gap: 2rem; }
.nav-links a { font-size: 0.88rem; font-weight: 600; color: var(--text-secondary); position: relative; padding: 0.3rem 0; transition: color var(--transition-fast); }
.nav-links a::after { content: ''; position: absolute; bottom: -4px; right: 0; width: 0; height: 2px; background: var(--gold); border-radius: 2px; transition: width var(--transition-medium); }
body[data-lang="en"] .nav-links a::after { right: auto; left: 0; }
.nav-links a:hover, .nav-links a.active { color: var(--gold); }
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }

.nav-controls { display: flex; align-items: center; gap: 0.6rem; }
.theme-toggle, .lang-toggle { width: 40px; height: 40px; border-radius: var(--radius-sm); border: 1px solid var(--border-color); background: var(--bg-glass); color: var(--text-secondary); cursor: pointer; display: flex; align-items: center; justify-content: center; font-size: 1rem; transition: all var(--transition-fast); }
.theme-toggle:hover, .lang-toggle:hover { border-color: var(--gold); color: var(--gold); background: var(--accent-glow); transform: translateY(-1px); }
.lang-toggle { font-size: 0.72rem; font-weight: 800; letter-spacing: 0.5px; }

.nav-menu-toggle { display: none; flex-direction: column; gap: 5px; cursor: pointer; background: none; border: none; padding: 0.5rem; z-index: 1001; }
.nav-menu-toggle span { width: 22px; height: 2px; background: var(--text-primary); border-radius: 2px; transition: all var(--transition-fast); }
.nav-menu-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-menu-toggle.active span:nth-child(2) { opacity: 0; }
.nav-menu-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

.mobile-nav { display: none; position: fixed; inset: 0; background: var(--bg-primary); z-index: 999; flex-direction: column; align-items: center; justify-content: center; gap: 2rem; opacity: 0; pointer-events: none; transition: opacity var(--transition-medium); }
.mobile-nav.active { opacity: 1; pointer-events: all; }
.mobile-nav a { font-size: 1.4rem; font-weight: 700; color: var(--text-secondary); transition: color var(--transition-fast); }
.mobile-nav a:hover { color: var(--gold); }

/* ── Sections ── */
.section { position: relative; padding: var(--section-gap) 0; z-index: 1; }
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 2rem; }

.section-header { text-align: center; margin-bottom: 4rem; }
.section-label { display: inline-block; font-size: 0.78rem; font-weight: 700; text-transform: uppercase; letter-spacing: 3px; color: var(--gold); margin-bottom: 1rem; padding: 0.4rem 1.2rem; background: var(--accent-glow); border-radius: var(--radius-xl); border: 1px solid rgba(200, 166, 78, 0.15); }
.section-title { font-size: clamp(1.8rem, 4vw, 2.6rem); font-weight: 800; line-height: 1.3; margin-bottom: 1rem; }
.section-title .gold { color: var(--gold); }
.section-subtitle { font-size: 1.05rem; color: var(--text-secondary); max-width: 650px; margin: 0 auto; line-height: 1.9; }

/* ── Reveal ── */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.8s ease-out, transform 0.8s ease-out; }
.reveal.revealed { opacity: 1; transform: translateY(0); }
.reveal-left { opacity: 0; transform: translateX(30px); transition: opacity 0.8s ease-out, transform 0.8s ease-out; }
body[data-lang="en"] .reveal-left { transform: translateX(-30px); }
.reveal-left.revealed { opacity: 1; transform: translateX(0); }
.reveal-right { opacity: 0; transform: translateX(-30px); transition: opacity 0.8s ease-out, transform 0.8s ease-out; }
body[data-lang="en"] .reveal-right { transform: translateX(30px); }
.reveal-right.revealed { opacity: 1; transform: translateX(0); }
.reveal-scale { opacity: 0; transform: scale(0.95); transition: opacity 0.8s ease-out, transform 0.8s ease-out; }
.reveal-scale.revealed { opacity: 1; transform: scale(1); }
.stagger-1 { transition-delay: 0.08s; }
.stagger-2 { transition-delay: 0.16s; }
.stagger-3 { transition-delay: 0.24s; }
.stagger-4 { transition-delay: 0.32s; }
.stagger-5 { transition-delay: 0.40s; }
.stagger-6 { transition-delay: 0.48s; }
.stagger-7 { transition-delay: 0.56s; }
.stagger-8 { transition-delay: 0.64s; }

/* ══════ HERO ══════ */
.hero { min-height: 100vh; display: flex; align-items: center; justify-content: center; position: relative; padding-top: 72px; overflow: hidden; }
.hero-content { text-align: center; z-index: 2; position: relative; max-width: 850px; margin: 0 auto; }
.hero-badge { display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.5rem 1.2rem; background: var(--accent-glow); border: 1px solid rgba(200, 166, 78, 0.2); border-radius: var(--radius-xl); font-size: 0.82rem; font-weight: 600; color: var(--gold); margin-bottom: 2rem; animation: fadeInDown 0.8s ease-out; }
.hero-badge .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--gold); animation: pulse 2s ease-in-out infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; transform: scale(1); } 50% { opacity: 0.4; transform: scale(1.6); } }

.hero-name { font-size: clamp(2.5rem, 6vw, 4.5rem); font-weight: 900; line-height: 1.15; margin-bottom: 0.5rem; animation: fadeInUp 0.8s ease-out 0.2s both; }
.hero-name .gold { color: var(--gold); }
.hero-title { font-size: clamp(1rem, 2.2vw, 1.3rem); font-weight: 500; color: var(--text-secondary); margin-bottom: 1.5rem; animation: fadeInUp 0.8s ease-out 0.35s both; min-height: 1.6em; }
.hero-intro { font-size: 1.05rem; color: var(--text-muted); max-width: 700px; margin: 0 auto 2.5rem; line-height: 2; animation: fadeInUp 0.8s ease-out 0.5s both; }
.hero-buttons { display: flex; align-items: center; justify-content: center; gap: 1rem; flex-wrap: wrap; animation: fadeInUp 0.8s ease-out 0.65s both; }

.btn { display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.85rem 2rem; border-radius: var(--radius-xl); font-size: 0.95rem; font-weight: 700; cursor: pointer; border: none; transition: all var(--transition-fast); position: relative; overflow: hidden; font-family: inherit; }
.btn-primary { background: var(--accent-gradient); color: #fff; box-shadow: var(--shadow-gold); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 35px rgba(200, 166, 78, 0.3); }
.btn-secondary { background: var(--bg-glass); color: var(--text-primary); border: 1.5px solid var(--border-color); backdrop-filter: blur(10px); }
.btn-secondary:hover { border-color: var(--gold); background: var(--accent-glow); transform: translateY(-2px); }
.btn-whatsapp { background: #25D366; color: #fff; box-shadow: 0 4px 20px rgba(37, 211, 102, 0.25); }
.btn-whatsapp:hover { background: #20bd5a; transform: translateY(-2px); box-shadow: 0 8px 30px rgba(37, 211, 102, 0.35); }
.btn .btn-icon { transition: transform var(--transition-fast); font-style: normal; }

.hero-scroll { position: absolute; bottom: 2rem; left: 50%; transform: translateX(-50%); display: flex; flex-direction: column; align-items: center; gap: 0.5rem; animation: fadeInUp 1s ease-out 1s both; }
.hero-scroll .mouse { width: 24px; height: 38px; border: 2px solid var(--text-muted); border-radius: 13px; position: relative; }
.hero-scroll .mouse::after { content: ''; position: absolute; top: 7px; left: 50%; transform: translateX(-50%); width: 3px; height: 7px; background: var(--gold); border-radius: 3px; animation: scrollWheel 2s ease-in-out infinite; }
@keyframes scrollWheel { 0% { opacity: 1; transform: translateX(-50%) translateY(0); } 100% { opacity: 0; transform: translateX(-50%) translateY(12px); } }
.hero-scroll span { font-size: 0.65rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 2px; }

@keyframes fadeInUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }
@keyframes fadeInDown { from { opacity: 0; transform: translateY(-20px); } to { opacity: 1; transform: translateY(0); } }

/* ══════ ABOUT ══════ */
.about-grid { display: grid; grid-template-columns: 1fr 1.6fr; gap: 4rem; align-items: center; }
body[data-lang="en"] .about-grid { grid-template-columns: 1fr 1.6fr; }

.about-image-frame { position: relative; border-radius: var(--radius-lg); overflow: hidden; aspect-ratio: 3/4; box-shadow: var(--shadow-lg); }
.about-image-frame::before { content: ''; position: absolute; inset: 0; border: 2px solid var(--gold); border-radius: var(--radius-lg); z-index: 2; opacity: 0.4; }
.about-image-frame img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s ease; }
.about-image-frame:hover img { transform: scale(1.04); }

.about-stat-card { position: absolute; bottom: -1rem; left: -1rem; background: var(--bg-card); backdrop-filter: blur(20px); border: 1px solid var(--bg-glass-border); border-radius: var(--radius-md); padding: 1rem 1.5rem; z-index: 3; box-shadow: var(--shadow-md); }
body[data-lang="en"] .about-stat-card { left: auto; right: -1rem; }
.about-stat-card .stat-number { font-size: 1.6rem; font-weight: 800; color: var(--gold); }
.about-stat-card .stat-label { font-size: 0.75rem; color: var(--text-secondary); font-weight: 600; }

.about-content h3 { font-size: 1.6rem; font-weight: 800; line-height: 1.4; margin-bottom: 1rem; }
.about-content p { color: var(--text-secondary); line-height: 2; font-size: 0.98rem; margin-bottom: 1rem; }
.about-highlights { display: grid; grid-template-columns: 1fr 1fr; gap: 0.75rem; margin-top: 1rem; }
.highlight-item { display: flex; align-items: center; gap: 0.6rem; padding: 0.7rem 1rem; background: var(--bg-glass); border: 1px solid var(--border-color); border-radius: var(--radius-md); transition: all var(--transition-fast); }
.highlight-item:hover { border-color: var(--gold); background: var(--accent-glow); transform: translateY(-2px); }
.highlight-icon { width: 34px; height: 34px; border-radius: var(--radius-sm); background: var(--accent-glow); display: flex; align-items: center; justify-content: center; font-size: 0.95rem; flex-shrink: 0; }
.highlight-text { font-size: 0.82rem; font-weight: 700; color: var(--text-primary); }

/* ══════ SKILLS ══════ */
.skills-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(265px, 1fr)); gap: 1.25rem; }
.skill-card { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: var(--radius-lg); padding: 1.75rem; backdrop-filter: blur(10px); transition: all var(--transition-medium); position: relative; overflow: hidden; }
.skill-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: var(--accent-gradient); opacity: 0; transition: opacity var(--transition-medium); }
.skill-card:hover { transform: translateY(-5px); border-color: var(--border-color-hover); box-shadow: var(--shadow-gold); background: var(--bg-card-hover); }
.skill-card:hover::before { opacity: 1; }
.skill-card-icon { width: 46px; height: 46px; border-radius: var(--radius-sm); background: var(--accent-glow); display: flex; align-items: center; justify-content: center; font-size: 1.3rem; margin-bottom: 1rem; }
.skill-card h3 { font-size: 1rem; font-weight: 700; margin-bottom: 0.75rem; color: var(--text-primary); }
.skill-tags { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.skill-tag { padding: 0.3rem 0.75rem; background: var(--bg-glass); border: 1px solid var(--border-color); border-radius: var(--radius-xl); font-size: 0.74rem; color: var(--text-secondary); font-weight: 600; transition: all var(--transition-fast); }
.skill-tag:hover { border-color: var(--gold); color: var(--gold); background: var(--accent-glow); }

/* ══════ CERTIFICATIONS ══════ */
.certs-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 1rem; }
.cert-card { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: var(--radius-md); padding: 1.25rem 1.5rem; display: flex; align-items: flex-start; gap: 1rem; backdrop-filter: blur(10px); transition: all var(--transition-medium); }
.cert-card:hover { border-color: var(--border-color-hover); box-shadow: var(--shadow-gold); transform: translateY(-3px); }
.cert-badge { width: 42px; height: 42px; border-radius: var(--radius-sm); background: var(--accent-glow); display: flex; align-items: center; justify-content: center; font-size: 1.1rem; flex-shrink: 0; }
.cert-info { flex: 1; }
.cert-info h4 { font-size: 0.9rem; font-weight: 700; line-height: 1.4; margin-bottom: 0.25rem; }
.cert-info .cert-issuer { font-size: 0.78rem; color: var(--gold); font-weight: 600; }
.cert-info .cert-date { font-size: 0.72rem; color: var(--text-muted); font-weight: 500; }
.cert-separator { color: var(--gold); margin: 0 0.4rem; font-size: 0.8rem; opacity: 0.6; }

/* ══════ PROJECTS ══════ */
.projects-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); gap: 2rem; }
.project-card { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: var(--radius-lg); overflow: hidden; transition: all var(--transition-medium); }
.project-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-gold); border-color: var(--border-color-hover); }
.project-card-header { padding: 2rem 2rem 0; position: relative; }
.project-number { font-size: 3.5rem; font-weight: 900; color: var(--gold); opacity: 0.1; position: absolute; top: 0.5rem; left: 1.5rem; line-height: 1; }
body[data-lang="en"] .project-number { left: auto; right: 1.5rem; }
.project-icon { width: 52px; height: 52px; border-radius: var(--radius-md); background: var(--accent-gradient); display: flex; align-items: center; justify-content: center; font-size: 1.4rem; color: #fff; margin-bottom: 1rem; }
.project-card-body { padding: 0 2rem 2rem; }
.project-card h3 { font-size: 1.15rem; font-weight: 800; margin-bottom: 0.6rem; }
.project-card p { color: var(--text-secondary); font-size: 0.88rem; line-height: 1.8; margin-bottom: 1.25rem; }
.project-link { display: inline-flex; align-items: center; gap: 0.4rem; font-size: 0.88rem; font-weight: 700; color: var(--gold); transition: all var(--transition-fast); }
.project-link:hover { gap: 0.7rem; }

/* ══════ EXPERIENCE ══════ */
.timeline { position: relative; max-width: 800px; margin: 0 auto; }
.timeline::before { content: ''; position: absolute; right: 0; top: 0; bottom: 0; width: 2px; background: linear-gradient(to bottom, var(--gold), transparent); }
body[data-lang="en"] .timeline::before { right: auto; left: 0; }
.timeline-item { position: relative; padding-right: 2.5rem; padding-bottom: 2.5rem; }
body[data-lang="en"] .timeline-item { padding-right: 0; padding-left: 2.5rem; }
.timeline-item:last-child { padding-bottom: 0; }
.timeline-dot { position: absolute; right: -6px; top: 0.5rem; width: 14px; height: 14px; border-radius: 50%; background: var(--gold); box-shadow: 0 0 0 4px var(--bg-primary), 0 0 20px var(--accent-glow-strong); z-index: 2; }
body[data-lang="en"] .timeline-dot { right: auto; left: -6px; }
.timeline-date { font-size: 0.78rem; font-weight: 700; color: var(--gold); letter-spacing: 0.5px; margin-bottom: 0.4rem; display: block; }
.timeline-card { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: var(--radius-lg); padding: 1.5rem; backdrop-filter: blur(10px); transition: all var(--transition-medium); }
.timeline-card:hover { border-color: var(--border-color-hover); box-shadow: var(--shadow-gold); transform: translateX(5px); }
body[data-lang="en"] .timeline-card:hover { transform: translateX(-5px); }
.timeline-card h3 { font-size: 1.05rem; font-weight: 800; margin-bottom: 0.2rem; }
.timeline-card .timeline-role { font-size: 0.85rem; color: var(--gold); font-weight: 700; margin-bottom: 0.6rem; }
.timeline-card ul li { position: relative; padding-right: 1.1rem; margin-bottom: 0.4rem; color: var(--text-secondary); font-size: 0.85rem; line-height: 1.7; }
body[data-lang="en"] .timeline-card ul li { padding-right: 0; padding-left: 1.1rem; }
.timeline-card ul li::before { content: '◆'; position: absolute; right: 0; color: var(--gold); font-size: 0.5rem; top: 0.5rem; }
body[data-lang="en"] .timeline-card ul li::before { right: auto; left: 0; }

/* ══════ SERVICES ══════ */
.services-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 1.25rem; }
.service-card { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: var(--radius-lg); padding: 2rem; text-align: center; backdrop-filter: blur(10px); transition: all var(--transition-medium); position: relative; overflow: hidden; }
.service-card::after { content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 3px; background: var(--accent-gradient); transform: scaleX(0); transition: transform var(--transition-medium); }
.service-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-gold); border-color: var(--border-color-hover); }
.service-card:hover::after { transform: scaleX(1); }
.service-icon { width: 56px; height: 56px; border-radius: var(--radius-md); background: var(--accent-glow); display: flex; align-items: center; justify-content: center; font-size: 1.4rem; margin: 0 auto 1rem; }
.service-card h3 { font-size: 0.98rem; font-weight: 700; margin-bottom: 0.6rem; }
.service-card p { font-size: 0.85rem; color: var(--text-secondary); line-height: 1.8; }

/* ══════ EDUCATION ══════ */
.edu-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 1.25rem; }
.edu-card { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: var(--radius-lg); padding: 1.75rem; backdrop-filter: blur(10px); transition: all var(--transition-medium); display: flex; gap: 1rem; align-items: flex-start; }
.edu-card:hover { border-color: var(--border-color-hover); box-shadow: var(--shadow-gold); transform: translateY(-3px); }
.edu-icon { width: 48px; height: 48px; border-radius: var(--radius-sm); background: var(--accent-glow); display: flex; align-items: center; justify-content: center; font-size: 1.3rem; flex-shrink: 0; }
.edu-info h4 { font-size: 0.95rem; font-weight: 700; margin-bottom: 0.2rem; }
.edu-info .edu-school { font-size: 0.82rem; color: var(--gold); font-weight: 600; margin-bottom: 0.15rem; }
.edu-info .edu-date { font-size: 0.75rem; color: var(--text-muted); font-weight: 500; }
.edu-info .edu-note { font-size: 0.8rem; color: var(--text-secondary); margin-top: 0.3rem; font-weight: 600; }

/* ══════ OBJECTIVE ══════ */
.objective-card { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: var(--radius-xl); padding: 3rem; text-align: center; max-width: 850px; margin: 0 auto; backdrop-filter: blur(10px); position: relative; overflow: hidden; }
.objective-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: var(--accent-gradient); }
.objective-icon { font-size: 2.5rem; margin-bottom: 1.5rem; }
.objective-card blockquote { font-size: 1.1rem; line-height: 2; color: var(--text-secondary); font-weight: 500; }

/* ══════ CTA BANNER ══════ */
.cta-banner { background: var(--accent-gradient-dark); border-radius: var(--radius-xl); padding: 3.5rem; text-align: center; position: relative; overflow: hidden; }
.cta-banner::before { content: ''; position: absolute; inset: 0; background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23c8a64e' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E"); }
.cta-banner h2 { font-size: clamp(1.5rem, 3vw, 2rem); font-weight: 800; color: #fff; margin-bottom: 1rem; position: relative; z-index: 1; }
.cta-banner p { font-size: 1rem; color: rgba(255,255,255,0.7); margin-bottom: 2rem; position: relative; z-index: 1; max-width: 600px; margin-left: auto; margin-right: auto; line-height: 1.8; }
.cta-banner .cta-buttons { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; position: relative; z-index: 1; }

/* ══════ CONTACT ══════ */
.contact-grid { display: flex; justify-content: center; align-items: center; max-width: 600px; margin: 0 auto; }
.contact-info { width: 100%; text-align: center; display: flex; flex-direction: column; align-items: center; }
.contact-info h3 { font-size: 1.6rem; font-weight: 800; line-height: 1.4; margin-bottom: 1rem; }
.contact-info p { color: var(--text-secondary); line-height: 1.9; margin-bottom: 1.5rem; }
.contact-links { display: flex; flex-direction: column; gap: 0.75rem; width: 100%; }
.contact-link-item { display: flex; align-items: center; gap: 0.8rem; padding: 0.85rem 1rem; background: var(--bg-glass); border: 1px solid var(--border-color); border-radius: var(--radius-md); transition: all var(--transition-fast); text-align: right; width: 100%; }
.contact-link-item:hover { border-color: var(--gold); background: var(--accent-glow); transform: translateY(-3px); }
body[data-lang="en"] .contact-link-item { text-align: left; }
.contact-link-icon { width: 40px; height: 40px; border-radius: var(--radius-sm); background: var(--accent-glow); display: flex; align-items: center; justify-content: center; font-size: 1rem; flex-shrink: 0; }
.contact-link-text .label { font-size: 0.7rem; color: var(--text-muted); font-weight: 600; text-transform: uppercase; letter-spacing: 1px; display: block; }
.contact-link-text .value { font-size: 0.88rem; font-weight: 700; color: var(--text-primary); }
.social-row { display: flex; gap: 0.6rem; margin-top: 1.5rem; justify-content: center; }
.social-btn { width: 42px; height: 42px; border-radius: var(--radius-sm); background: var(--bg-glass); border: 1px solid var(--border-color); display: flex; align-items: center; justify-content: center; font-size: 1.1rem; transition: all var(--transition-fast); color: var(--text-secondary); }
.social-btn:hover { border-color: var(--gold); color: var(--gold); background: var(--accent-glow); transform: translateY(-2px); }

/* ══════ LANGUAGES BAR ══════ */
.langs-bar { display: flex; gap: 1.5rem; justify-content: center; flex-wrap: wrap; margin-top: 1rem; }
.lang-item { display: flex; align-items: center; gap: 0.5rem; padding: 0.6rem 1.2rem; background: var(--bg-glass); border: 1px solid var(--border-color); border-radius: var(--radius-xl); font-size: 0.85rem; font-weight: 600; }
.lang-level { font-size: 0.72rem; color: var(--gold); font-weight: 700; }

/* ══════ FOOTER ══════ */
.footer { position: relative; z-index: 1; border-top: 1px solid var(--border-color); padding: 2rem 0; }
.footer-content { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 1rem; }
.footer-text { font-size: 0.82rem; color: var(--text-muted); }
.footer-back-top { display: inline-flex; align-items: center; gap: 0.4rem; font-size: 0.82rem; color: var(--text-secondary); transition: color var(--transition-fast); }
.footer-back-top:hover { color: var(--gold); }

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--bg-tertiary); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--gold); }

/* Loader */
.loader { position: fixed; inset: 0; background: var(--bg-primary); z-index: 9999; display: flex; align-items: center; justify-content: center; transition: opacity 0.5s ease, visibility 0.5s ease; }
.loader.loaded { opacity: 0; visibility: hidden; pointer-events: none; }
.loader-spinner { width: 44px; height: 44px; border: 3px solid var(--border-color); border-top-color: var(--gold); border-radius: 50%; animation: spin 0.8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ══════ RESPONSIVE ══════ */
@media (max-width: 992px) {
  :root { --section-gap: 80px; }
  .nav-links { display: none; }
  .nav-menu-toggle { display: flex; }
  .mobile-nav { display: flex; }
  .about-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .about-image-frame { max-width: 300px; margin: 0 auto; }
  .contact-grid { grid-template-columns: 1fr; }
  .projects-grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  :root { --section-gap: 60px; }
  html { font-size: 15px; }
  .container { padding: 0 1.25rem; }
  .navbar { padding: 0 1rem; }
  .hero-buttons { flex-direction: column; width: 100%; }
  .hero-buttons .btn { width: 100%; justify-content: center; }
  .about-highlights { grid-template-columns: 1fr; }
  .skills-grid, .services-grid, .certs-grid { grid-template-columns: 1fr; }
  .section-header { margin-bottom: 2.5rem; }
  .objective-card, .cta-banner { padding: 2rem 1.5rem; }
  .contact-form { padding: 1.5rem; }
  .footer-content { flex-direction: column; text-align: center; }
  .gradient-orb:nth-child(1) { width: 300px; height: 300px; }
  .gradient-orb:nth-child(2) { width: 250px; height: 250px; }
  .gradient-orb:nth-child(3) { display: none; }
  .edu-grid { grid-template-columns: 1fr; }
  .timeline-item { padding-right: 2rem; }
  body[data-lang="en"] .timeline-item { padding-left: 2rem; }
  .social-row { flex-wrap: wrap; }
}
@media print { .navbar, .gradient-orb, #particles-canvas, .hero-scroll, .loader { display: none !important; } .section { padding: 2rem 0; } body { background: #fff; color: #000; } }