/* ===== CSS VARIABLES ===== */
:root {
    --blue-50: #eff6ff;
    --blue-100: #dbeafe;
    --blue-200: #bfdbfe;
    --blue-300: #93c5fd;
    --blue-400: #60a5fa;
    --blue-500: #3b82f6;
    --blue-600: #2563eb;
    --blue-700: #1d4ed8;
    --blue-800: #1e40af;
    --blue-900: #1e3a8a;
    --blue-950: #0f1d3d;
    --white: #ffffff;
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --radius: 16px;
    --radius-sm: 10px;
    --radius-lg: 24px;
    --shadow: 0 4px 30px rgba(37, 99, 235, 0.08);
    --shadow-lg: 0 10px 50px rgba(37, 99, 235, 0.12);
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--gray-700);
    background: var(--white);
    line-height: 1.7;
    overflow-x: hidden;
}
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }
.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }

/* ===== NAVBAR ===== */
.navbar {
    position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
    background: rgba(255,255,255,0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(37,99,235,0.06);
    transition: var(--transition);
}
.navbar.scrolled { box-shadow: 0 2px 30px rgba(37,99,235,0.1); }
.nav-container {
    max-width: 1100px; margin: 0 auto; padding: 0 24px;
    display: flex; align-items: center; justify-content: space-between; height: 70px;
}
.nav-logo {
    font-family: 'Outfit', sans-serif; font-weight: 800; font-size: 1.5rem;
    background: linear-gradient(135deg, var(--blue-600), var(--blue-400));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}
.nav-links {
    display: flex; align-items: center; gap: 8px;
}
.nav-links a {
    padding: 8px 16px; border-radius: var(--radius-sm);
    font-size: 0.88rem; font-weight: 500; color: var(--gray-600);
    transition: var(--transition);
}
.nav-links a:hover { color: var(--blue-600); background: var(--blue-50); }
.nav-cta {
    background: linear-gradient(135deg, var(--blue-600), var(--blue-500)) !important;
    color: var(--white) !important;
    padding: 8px 20px !important;
    border-radius: 50px !important;
}
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 4px 15px rgba(37,99,235,0.3); }
.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 8px; }
.nav-toggle span {
    display: block; width: 24px; height: 2px; background: var(--gray-700);
    margin: 6px 0; transition: var(--transition); border-radius: 2px;
}

/* ===== HERO ===== */
.hero {
    min-height: 100vh; display: flex; align-items: center; justify-content: center;
    position: relative; overflow: hidden;
    background: linear-gradient(165deg, var(--white) 0%, var(--blue-50) 40%, var(--blue-100) 100%);
    padding-top: 70px;
}
.hero-bg-shapes { position: absolute; inset: 0; pointer-events: none; }
.shape {
    position: absolute; border-radius: 50%; opacity: 0.08;
    background: var(--blue-500); animation: float 20s ease-in-out infinite;
}
.shape-1 { width: 500px; height: 500px; top: -100px; right: -100px; animation-delay: 0s; }
.shape-2 { width: 300px; height: 300px; bottom: -50px; left: -80px; animation-delay: -5s; }
.shape-3 { width: 200px; height: 200px; top: 40%; left: 10%; animation-delay: -10s; opacity: 0.05; }
.shape-4 { width: 150px; height: 150px; bottom: 20%; right: 20%; animation-delay: -15s; opacity: 0.06; }
@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -30px) scale(1.05); }
    66% { transform: translate(-20px, 20px) scale(0.95); }
}
.hero-container {
    max-width: 1100px; margin: 0 auto; padding: 0 24px;
    display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center;
    position: relative; z-index: 1;
}
.hero-greeting {
    font-size: 1rem; font-weight: 500; color: var(--blue-500);
    letter-spacing: 2px; text-transform: uppercase; margin-bottom: 8px;
    opacity: 0; animation: fadeInUp 0.6s ease forwards 0.2s;
}
.hero-name {
    font-family: 'Outfit', sans-serif; font-size: 3.2rem; font-weight: 800;
    color: var(--gray-800); line-height: 1.15; margin-bottom: 16px;
    opacity: 0; animation: fadeInUp 0.6s ease forwards 0.4s;
}
.hero-name span {
    background: linear-gradient(135deg, var(--blue-600), var(--blue-400));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.hero-title {
    font-size: 1.1rem; font-weight: 500; color: var(--blue-600); margin-bottom: 16px;
    opacity: 0; animation: fadeInUp 0.6s ease forwards 0.6s;
}
.hero-desc {
    font-size: 0.95rem; color: var(--gray-500); line-height: 1.8; margin-bottom: 28px;
    opacity: 0; animation: fadeInUp 0.6s ease forwards 0.8s;
}
.hero-actions {
    display: flex; gap: 14px; margin-bottom: 40px;
    opacity: 0; animation: fadeInUp 0.6s ease forwards 1s;
}
.btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 14px 28px; border-radius: 50px; font-weight: 600; font-size: 0.9rem;
    transition: var(--transition); cursor: pointer;
}
.btn-primary {
    background: linear-gradient(135deg, var(--blue-600), var(--blue-500));
    color: var(--white); box-shadow: 0 4px 20px rgba(37,99,235,0.3);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(37,99,235,0.4); }
.btn-outline {
    border: 2px solid var(--blue-200); color: var(--blue-600); background: var(--white);
}
.btn-outline:hover { background: var(--blue-50); border-color: var(--blue-400); transform: translateY(-2px); }
.hero-stats {
    display: flex; gap: 32px;
    opacity: 0; animation: fadeInUp 0.6s ease forwards 1.2s;
}
.stat { text-align: center; }
.stat-num {
    font-family: 'Outfit', sans-serif; font-size: 2rem; font-weight: 800;
    background: linear-gradient(135deg, var(--blue-600), var(--blue-400));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.stat-plus {
    font-family: 'Outfit', sans-serif; font-size: 1.5rem; font-weight: 700;
    background: linear-gradient(135deg, var(--blue-600), var(--blue-400));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.stat p { font-size: 0.78rem; color: var(--gray-500); margin-top: 2px; }

/* Hero Image */
.hero-image {
    display: flex; justify-content: center; align-items: center;
    opacity: 0; animation: fadeInUp 0.8s ease forwards 0.6s;
}
.hero-image-wrapper {
    position: relative; width: 340px; height: 340px;
}
.hero-image-ring {
    position: absolute; inset: -12px; border-radius: 50%;
    border: 3px solid transparent;
    background: linear-gradient(135deg, var(--blue-400), var(--blue-200), var(--blue-400)) border-box;
    -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor; mask-composite: exclude;
    animation: spin 8s linear infinite;
}
@keyframes spin { 100% { transform: rotate(360deg); } }
.hero-image-wrapper img {
    width: 100%; height: 100%; border-radius: 50%;
    object-fit: cover; object-position: center top;
    border: 5px solid var(--white);
    box-shadow: 0 20px 60px rgba(37,99,235,0.15);
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute; bottom: 30px; left: 50%; transform: translateX(-50%);
    opacity: 0; animation: fadeIn 0.6s ease forwards 1.6s;
}
.scroll-mouse {
    width: 26px; height: 40px; border: 2px solid var(--blue-300);
    border-radius: 14px; display: flex; justify-content: center; padding-top: 8px;
}
.scroll-wheel {
    width: 3px; height: 8px; background: var(--blue-400);
    border-radius: 2px; animation: scrollAnim 1.5s ease-in-out infinite;
}
@keyframes scrollAnim { 0% { opacity: 1; transform: translateY(0); } 100% { opacity: 0; transform: translateY(10px); } }
@keyframes fadeIn { to { opacity: 1; } }
@keyframes fadeInUp { to { opacity: 1; transform: translateY(0); } }
.hero-greeting, .hero-name, .hero-title, .hero-desc, .hero-actions, .hero-stats, .hero-image {
    transform: translateY(20px);
}

/* ===== SECTIONS ===== */
.section { padding: 90px 0; }
.section:nth-child(even) { background: var(--gray-50); }
.section-title {
    font-family: 'Outfit', sans-serif; font-size: 2rem; font-weight: 700;
    text-align: center; margin-bottom: 50px; color: var(--gray-800);
    position: relative;
}
.section-title::after {
    content: ''; display: block; width: 50px; height: 4px;
    background: linear-gradient(135deg, var(--blue-500), var(--blue-400));
    border-radius: 4px; margin: 12px auto 0;
}

/* ===== ABOUT ===== */
.about-content { display: grid; grid-template-columns: 1.2fr 1fr; gap: 50px; align-items: start; }
.about-text p { margin-bottom: 16px; font-size: 0.95rem; color: var(--gray-600); }
.about-text strong { color: var(--blue-700); font-weight: 600; }
.about-info { display: flex; flex-direction: column; gap: 14px; }
.info-card {
    display: flex; align-items: center; gap: 16px;
    background: var(--white); padding: 18px 22px; border-radius: var(--radius);
    border: 1px solid var(--blue-100); transition: var(--transition);
    box-shadow: var(--shadow);
}
.info-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); border-color: var(--blue-200); }
.info-icon { font-size: 1.4rem; }
.info-label { font-size: 0.75rem; color: var(--gray-400); text-transform: uppercase; letter-spacing: 1px; font-weight: 600; }
.info-value { font-size: 0.9rem; color: var(--gray-700); font-weight: 500; }

/* ===== TIMELINE ===== */
.timeline { position: relative; max-width: 800px; margin: 0 auto; }
.timeline::before {
    content: ''; position: absolute; left: 20px; top: 0; bottom: 0;
    width: 2px; background: linear-gradient(to bottom, var(--blue-200), var(--blue-400), var(--blue-200));
}
.timeline-item {
    position: relative; padding-left: 56px; margin-bottom: 32px;
    opacity: 0; transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
.timeline-item.visible { opacity: 1; transform: translateY(0); }
.timeline-dot {
    position: absolute; left: 12px; top: 24px;
    width: 18px; height: 18px; border-radius: 50%;
    background: var(--white); border: 3px solid var(--blue-500);
    z-index: 1; transition: var(--transition);
}
.timeline-item:hover .timeline-dot { background: var(--blue-500); box-shadow: 0 0 0 6px rgba(59,130,246,0.15); }
.timeline-card {
    background: var(--white); border-radius: var(--radius);
    padding: 28px; border: 1px solid var(--blue-100);
    box-shadow: var(--shadow); transition: var(--transition);
}
.timeline-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); border-color: var(--blue-200); }
.timeline-header { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; margin-bottom: 14px; flex-wrap: wrap; }
.timeline-card h3 { font-family: 'Outfit', sans-serif; font-size: 1.1rem; font-weight: 700; color: var(--gray-800); }
.company { font-size: 0.88rem; color: var(--blue-600); font-weight: 500; margin-top: 2px; }
.timeline-date {
    font-size: 0.78rem; color: var(--blue-500); font-weight: 600;
    background: var(--blue-50); padding: 4px 14px; border-radius: 50px; white-space: nowrap;
}
.timeline-card ul { padding-left: 18px; list-style: disc; }
.timeline-card li { font-size: 0.88rem; color: var(--gray-600); margin-bottom: 6px; line-height: 1.6; }

/* ===== SKILLS ===== */
.skills { background: linear-gradient(165deg, var(--blue-50), var(--white)) !important; }
.skills-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.skill-card {
    background: var(--white); border-radius: var(--radius); padding: 28px;
    border: 1px solid var(--blue-100); box-shadow: var(--shadow);
    transition: var(--transition); text-align: center;
    opacity: 0; transform: translateY(20px);
}
.skill-card.visible { opacity: 1; transform: translateY(0); }
.skill-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: var(--blue-300); }
.skill-icon { font-size: 2rem; margin-bottom: 12px; }
.skill-card h3 { font-family: 'Outfit', sans-serif; font-size: 1rem; font-weight: 700; color: var(--gray-800); margin-bottom: 14px; }
.skill-tags { display: flex; flex-wrap: wrap; justify-content: center; gap: 6px; }
.skill-tags span {
    font-size: 0.76rem; padding: 5px 12px; border-radius: 50px;
    background: var(--blue-50); color: var(--blue-700); font-weight: 500;
    border: 1px solid var(--blue-100); transition: var(--transition);
}
.skill-tags span:hover { background: var(--blue-600); color: var(--white); transform: scale(1.05); }

/* ===== CERTIFICATIONS ===== */
.cert-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.cert-card {
    background: var(--white); border-radius: var(--radius); padding: 28px; text-align: center;
    border: 1px solid var(--blue-100); box-shadow: var(--shadow); transition: var(--transition);
    opacity: 0; transform: translateY(20px);
}
.cert-card.visible { opacity: 1; transform: translateY(0); }
.cert-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: var(--blue-300); }
.cert-badge {
    display: inline-flex; align-items: center; justify-content: center;
    width: 52px; height: 52px; border-radius: 50%;
    background: linear-gradient(135deg, var(--blue-500), var(--blue-600));
    color: var(--white); font-family: 'Outfit', sans-serif; font-weight: 700; font-size: 0.85rem;
    margin-bottom: 14px;
}
.cert-card h3 { font-family: 'Outfit', sans-serif; font-size: 0.95rem; font-weight: 700; color: var(--gray-800); margin-bottom: 6px; }
.cert-card p { font-size: 0.82rem; color: var(--gray-500); }

/* ===== EDUCATION ===== */
.edu-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; max-width: 800px; margin: 0 auto; }
.edu-card {
    background: var(--white); border-radius: var(--radius); padding: 32px; text-align: center;
    border: 1px solid var(--blue-100); box-shadow: var(--shadow); transition: var(--transition);
    opacity: 0; transform: translateY(20px);
}
.edu-card.visible { opacity: 1; transform: translateY(0); }
.edu-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: var(--blue-300); }
.edu-year {
    display: inline-block; font-family: 'Outfit', sans-serif; font-weight: 800; font-size: 2rem;
    background: linear-gradient(135deg, var(--blue-500), var(--blue-400));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
    margin-bottom: 10px;
}
.edu-card h3 { font-family: 'Outfit', sans-serif; font-size: 1rem; font-weight: 700; color: var(--gray-800); margin-bottom: 6px; }
.edu-card p { font-size: 0.88rem; color: var(--gray-500); }

/* ===== AWARDS ===== */
.awards { background: linear-gradient(165deg, var(--blue-50), var(--white)) !important; }
.awards-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; max-width: 800px; margin: 0 auto; }
.award-card {
    background: var(--white); border-radius: var(--radius); padding: 28px; text-align: center;
    border: 1px solid var(--blue-100); box-shadow: var(--shadow); transition: var(--transition);
    opacity: 0; transform: translateY(20px);
}
.award-card.visible { opacity: 1; transform: translateY(0); }
.award-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: var(--blue-300); }
.award-icon { font-size: 2rem; margin-bottom: 10px; }
.award-card h3 { font-family: 'Outfit', sans-serif; font-size: 1rem; font-weight: 700; color: var(--gray-800); margin-bottom: 6px; }
.award-card p { font-size: 0.88rem; color: var(--gray-600); margin-bottom: 6px; }
.award-meta { font-size: 0.78rem; color: var(--blue-500); font-weight: 600; }

/* ===== CONTACT ===== */
.contact { text-align: center; }
.contact-subtitle { font-size: 1rem; color: var(--gray-500); margin-bottom: 40px; max-width: 500px; margin-left: auto; margin-right: auto; }
.contact-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; max-width: 750px; margin: 0 auto; }
.contact-card {
    background: var(--white); border-radius: var(--radius); padding: 28px 20px;
    border: 1px solid var(--blue-100); box-shadow: var(--shadow); transition: var(--transition); text-align: center;
}
.contact-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: var(--blue-300); }
.contact-icon { font-size: 1.8rem; margin-bottom: 10px; }
.contact-card h3 { font-family: 'Outfit', sans-serif; font-size: 0.9rem; font-weight: 700; color: var(--gray-800); margin-bottom: 4px; }
.contact-card p { font-size: 0.8rem; color: var(--gray-500); word-break: break-word; }

/* ===== FOOTER ===== */
.footer {
    background: var(--blue-950); color: var(--blue-200); text-align: center;
    padding: 28px 24px; font-size: 0.85rem;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
    .hero-container { grid-template-columns: 1fr; text-align: center; gap: 40px; }
    .hero-content { order: 2; }
    .hero-image { order: 1; }
    .hero-image-wrapper { width: 260px; height: 260px; }
    .hero-actions { justify-content: center; }
    .hero-stats { justify-content: center; }
    .hero-name { font-size: 2.4rem; }
    .about-content { grid-template-columns: 1fr; }
    .skills-grid, .cert-grid { grid-template-columns: repeat(2, 1fr); }
    .contact-cards { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
    .nav-links {
        position: fixed; top: 70px; left: 0; right: 0; bottom: 0;
        background: rgba(255,255,255,0.98); backdrop-filter: blur(20px);
        flex-direction: column; align-items: center; justify-content: center; gap: 12px;
        transform: translateX(100%); transition: var(--transition);
    }
    .nav-links.active { transform: translateX(0); }
    .nav-toggle { display: block; }
    .nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 6px); }
    .nav-toggle.active span:nth-child(2) { opacity: 0; }
    .nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -6px); }
    .hero-name { font-size: 2rem; }
    .hero-image-wrapper { width: 220px; height: 220px; }
    .skills-grid, .cert-grid, .awards-grid, .edu-grid { grid-template-columns: 1fr; }
    .contact-cards { grid-template-columns: 1fr; }
    .section { padding: 60px 0; }
    .timeline-header { flex-direction: column; }
}