:root {
    --primary: #00d2ff;
    --secondary: #92fe9d;
    --accent: #ff00c8;
    --bg-dark: #0f172a;
    --bg-darker: #070b14;
    --text-light: #f8fafc;
    --text-dim: #94a3b8;
    --glass: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --gradient: linear-gradient(135deg, var(--primary), var(--secondary));
    --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-light);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, .logo {
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.gradient-text {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

h1 {
    font-size: clamp(2.2rem, 5vw, 4rem);
    line-height: 1.1;
    margin-bottom: 20px;
}

h2 {
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    line-height: 1.2;
    margin-bottom: 20px;
}

.section-padding {
    padding: clamp(60px, 10vw, 120px) 0;
}

.bg-darker {
    background-color: var(--bg-darker);
}

/* Header & Nav */
header {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--glass-border);
}

#main-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 5%;
}

.logo {
    font-size: 1.3rem;
    letter-spacing: 2px;
    z-index: 1001;
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
    z-index: 1001;
}

.menu-toggle span {
    width: 30px;
    height: 2px;
    background-color: var(--text-light);
    transition: var(--transition);
}

#main-nav ul {
    display: flex;
    list-style: none;
    gap: 30px;
    align-items: center;
}

#main-nav ul li a {
    text-decoration: none;
    color: var(--text-light);
    font-weight: 500;
    font-size: 0.9rem;
    transition: var(--transition);
    white-space: nowrap;
}

#main-nav ul li a:hover {
    color: var(--primary);
}

/* Buttons */
.btn {
    padding: 12px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    display: inline-block;
}

.btn-primary {
    background: var(--gradient);
    color: #000;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 210, 255, 0.3);
}

.btn-outline {
    border: 1px solid var(--primary);
    color: var(--primary);
}

.btn-outline:hover {
    background: var(--primary);
    color: #000;
}

/* Hero Section */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 120px 5% 60px;
    position: relative;
    overflow: hidden;
    gap: 40px;
}

.hero-content {
    flex: 1.2;
    z-index: 2;
}

.badge {
    display: inline-block;
    padding: 5px 15px;
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 20px;
}

.hero-content h1 {
    font-size: clamp(2.5rem, 8vw, 4rem);
    line-height: 1.1;
    margin-bottom: 25px;
}

.hero-content p {
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: var(--text-dim);
    margin-bottom: 40px;
    max-width: 600px;
}

.hero-visual {
    flex: 0.8;
    display: flex;
    justify-content: flex-end;
    position: relative;
}

.hero-visual img {
    width: 100%;
    max-width: 450px;
    filter: drop-shadow(0 0 50px rgba(0, 210, 255, 0.2));
}

.floating {
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

/* Academy Section */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.section-header p {
    color: var(--text-dim);
}

.modules-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.module-card {
    background: var(--glass);
    border: 1px solid var(--glass-border);
    padding: 40px;
    border-radius: 24px;
    position: relative;
    transition: var(--transition);
    overflow: hidden;
}

.module-card:hover {
    transform: translateY(-10px);
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--primary);
}

.module-number {
    font-size: 4rem;
    font-weight: 800;
    opacity: 0.1;
    position: absolute;
    top: -10px;
    right: 20px;
}

.module-card h3 {
    margin-bottom: 15px;
    font-size: 1.4rem;
}

.module-card p {
    color: var(--text-dim);
    font-size: 0.95rem;
    margin-bottom: 20px;
}

.module-topics {
    list-style: none;
    font-size: 0.9rem;
}

.module-topics li {
    margin-bottom: 8px;
    display: flex;
    align-items: center;
}

.module-topics li::before {
    content: "→";
    margin-right: 10px;
    color: var(--primary);
}

.strength-badge {
    position: absolute;
    bottom: 20px;
    right: 20px;
    background: var(--accent);
    font-size: 0.7rem;
    padding: 3px 10px;
    border-radius: 10px;
    font-weight: bold;
}

/* Specializations */
.spec-grid {
    display: flex;
    gap: 40px;
    justify-content: center;
    flex-wrap: wrap;
}

.spec-card {
    background: var(--glass);
    border-radius: 24px;
    overflow: hidden;
    width: 45%;
    min-width: 320px;
    display: flex;
    border: 1px solid var(--glass-border);
    transition: var(--transition);
}

.spec-card:hover {
    border-color: var(--secondary);
    box-shadow: 0 0 30px rgba(146, 254, 157, 0.1);
}

.spec-card img {
    width: 150px;
    height: 100%;
    object-fit: cover;
}

.spec-info {
    padding: 30px;
}

.spec-info h4 {
    font-size: 1.2rem;
    margin-bottom: 10px;
}

.spec-info p {
    font-size: 0.9rem;
    color: var(--text-dim);
    margin-bottom: 15px;
}

.year {
    font-size: 0.8rem;
    color: var(--secondary);
    font-weight: 600;
}

/* Knowledge Base */
.knowledge-tabs {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 50px;
}

.tab-item {
    padding: 10px 25px;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: var(--transition);
}

.tab-item.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

.knowledge-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.k-item {
    text-align: center;
    padding: 40px;
    background: var(--glass);
    border-radius: 20px;
}

.k-item i {
    color: var(--primary);
    margin-bottom: 20px;
    display: block;
}

.k-item h5 {
    margin-bottom: 10px;
}

.k-item p {
    font-size: 0.9rem;
    color: var(--text-dim);
}

/* CV Section */
.cv-container {
    display: flex;
    gap: 50px;
    background: var(--glass);
    border-radius: 30px;
    padding: 50px;
    border: 1px solid var(--glass-border);
}

.cv-sidebar {
    flex: 1;
    text-align: center;
    border-right: 1px solid var(--glass-border);
    padding-right: 50px;
}

.profile-img {
    width: 120px;
    height: 120px;
    background: var(--gradient);
    border-radius: 50%;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.cv-sidebar h3 {
    font-size: 1.8rem;
    margin-bottom: 5px;
}

.cv-sidebar .title {
    color: var(--primary);
    font-weight: 600;
    margin-bottom: 30px;
}

.cv-info-list {
    text-align: left;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
    font-size: 0.9rem;
    color: var(--text-dim);
}

.cv-main {
    flex: 2;
}

.cv-section {
    margin-bottom: 40px;
}

.cv-section h4 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.skills-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.skills-tags span {
    background: rgba(255, 255, 255, 0.05);
    padding: 5px 15px;
    border-radius: 5px;
    font-size: 0.85rem;
    border: 1px solid var(--glass-border);
}

/* Footer */
footer {
    text-align: center;
    border-top: 1px solid var(--glass-border);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.social-links a {
    color: var(--text-light);
    margin-left: 20px;
    font-size: 1.2rem;
    transition: var(--transition);
}

.social-links a:hover {
    color: var(--primary);
}

@media (max-width: 1024px) {
    .hero-section {
        flex-direction: column;
        text-align: center;
        padding-top: 140px;
        gap: 60px;
    }
    .hero-visual {
        justify-content: center;
        order: -1;
    }
    .hero-content p {
        margin: 0 auto 40px;
    }
    .spec-card {
        width: 100%;
    }
    .knowledge-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .section-padding {
        padding: 60px 0;
    }
    .menu-toggle {
        display: flex;
    }
    #main-nav ul {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        height: 100vh;
        background: var(--bg-darker);
        flex-direction: column;
        justify-content: center;
        transition: 0.5s;
        box-shadow: -10px 0 30px rgba(0,0,0,0.5);
    }
    #main-nav ul.active {
        right: 0;
    }
    .cv-container {
        flex-direction: column;
        padding: 30px 20px;
    }
    .cv-sidebar {
        border-right: none;
        padding-right: 0;
        border-bottom: 1px solid var(--glass-border);
        padding-bottom: 40px;
        margin-bottom: 40px;
    }
    .knowledge-grid {
        grid-template-columns: 1fr;
    }
    .knowledge-tabs {
        flex-wrap: wrap;
    }
    .footer-content {
        flex-direction: column;
        gap: 20px;
    }
    .social-links a {
        margin: 0 10px;
    }
}

/* Modals & Lightbox */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(5px);
}

.modal-content {
    background-color: var(--bg-dark);
    margin: 2% auto;
    padding: 20px;
    border: 1px solid var(--glass-border);
    width: 80%;
    height: 90%;
    border-radius: 20px;
    position: relative;
}

.close-modal {
    position: absolute;
    top: -40px;
    right: 0;
    color: #fff;
    font-size: 30px;
    font-weight: bold;
    cursor: pointer;
    transition: var(--transition);
}

.close-modal:hover {
    color: var(--primary);
    transform: scale(1.1);
}

#imageModal .modal-content {
    background: transparent;
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
}

#expandedImg {
    max-width: 100%;
    max-height: 90vh;
    border-radius: 10px;
    box-shadow: 0 0 50px rgba(0,0,0,0.5);
}