/* ========================================
   Base Styles & Variables
======================================== */
:root {
    --primary-color: #00d4ff;
    --secondary-color: #7c3aed;
    --accent-color: #f472b6;
    --bg-primary: #000000;
    --bg-secondary: #0a0a0a;
    --bg-tertiary: #111111;
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --text-muted: #666666;
    --border-color: #222222;
    --gradient-primary: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    --gradient-secondary: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
    --shadow-glow: 0 0 40px rgba(0, 212, 255, 0.3);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

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

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

/* ========================================
   Language Switcher
======================================== */
.language-switcher {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 10000;
    display: flex;
    gap: 5px;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    padding: 5px;
    border-radius: 30px;
    border: 1px solid var(--border-color);
}

.lang-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 8px 16px;
    border-radius: 25px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.85rem;
    transition: var(--transition);
}

.lang-btn:hover {
    color: var(--text-primary);
}

.lang-btn.active {
    background: var(--gradient-primary);
    color: var(--bg-primary);
}

/* ========================================
   Navigation
======================================== */
.main-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 9999;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.8rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 30px;
    margin-right: 100px;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
    transition: var(--transition);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
    color: var(--text-primary);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.menu-toggle span {
    width: 25px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition);
}

/* ========================================
   Hero Section
======================================== */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding: 100px 20px;
}

.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--primary-color);
    border-radius: 50%;
    opacity: 0.3;
    animation: float 15s infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) translateX(0);
        opacity: 0.3;
    }
    25% {
        transform: translateY(-100px) translateX(50px);
        opacity: 0.8;
    }
    50% {
        transform: translateY(-200px) translateX(-30px);
        opacity: 0.3;
    }
    75% {
        transform: translateY(-100px) translateX(-50px);
        opacity: 0.6;
    }
}

.hero-content {
    display: flex;
    align-items: center;
    gap: 60px;
    max-width: 1200px;
    z-index: 10;
}

.hero-image {
    flex-shrink: 0;
}

.image-frame {
    position: relative;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    overflow: hidden;
    border: 3px solid transparent;
    background: var(--gradient-primary);
    padding: 3px;
}

.image-frame img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center 10%;
    border-radius: 50%;
}

.image-glow {
    position: absolute;
    top: -20px;
    left: -20px;
    right: -20px;
    bottom: -20px;
    background: var(--gradient-primary);
    border-radius: 50%;
    filter: blur(40px);
    opacity: 0.4;
    z-index: -1;
    animation: pulse 3s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 0.4;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.6;
    }
}

.hero-text {
    flex: 1;
}

.greeting {
    font-size: 1.2rem;
    color: var(--primary-color);
    font-weight: 500;
    margin-bottom: 10px;
}

.name {
    font-size: 3.5rem;
    font-weight: 800;
    font-family: 'Poppins', sans-serif;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 15px;
    line-height: 1.2;
}

.typing-container {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
    min-height: 40px;
}

.cursor {
    animation: blink 1s infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 30px;
    line-height: 1.8;
}

.hero-cta {
    display: flex;
    gap: 15px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    font-size: 1rem;
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--bg-primary);
    box-shadow: 0 10px 30px rgba(0, 212, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(0, 212, 255, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid var(--primary-color);
}

.btn-secondary:hover {
    background: var(--primary-color);
    color: var(--bg-primary);
    transform: translateY(-3px);
}

.btn-whatsapp {
    background: #25D366;
    color: black;
}

.btn-whatsapp:hover {
    background: #128C7E;
    color: black;
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(37, 211, 102, 0.3);
}

.scroll-indicator {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    color: var(--text-muted);
    font-size: 0.85rem;
    animation: bounce 2s infinite;
}

.mouse {
    width: 25px;
    height: 40px;
    border: 2px solid var(--text-muted);
    border-radius: 20px;
    position: relative;
}

.wheel {
    width: 4px;
    height: 8px;
    background: var(--text-muted);
    border-radius: 2px;
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll 2s infinite;
}

@keyframes scroll {
    0% { transform: translateX(-50%) translateY(0); opacity: 1; }
    100% { transform: translateX(-50%) translateY(15px); opacity: 0; }
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(-10px); }
}

/* ========================================
   Section Common Styles
======================================== */
section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 2.8rem;
    font-weight: 700;
    font-family: 'Poppins', sans-serif;
    margin-bottom: 15px;
}

.title-underline {
    width: 80px;
    height: 4px;
    background: var(--gradient-primary);
    margin: 0 auto;
    border-radius: 2px;
}

/* ========================================
   About Section
======================================== */
.about-section {
    background: var(--bg-secondary);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
    align-items: center;
}

.about-image {
    position: relative;
}

.about-image img {
    width: 100%;
    border-radius: 20px;
    box-shadow: var(--shadow-glow);
}

.experience-badge {
    position: absolute;
    bottom: -20px;
    right: -20px;
    background: var(--gradient-primary);
    padding: 20px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 212, 255, 0.4);
}

.experience-badge .years {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--bg-primary);
}

.experience-badge .text {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--bg-primary);
    text-transform: uppercase;
}

.about-info h3 {
    font-size: 1.8rem;
    margin-bottom: 30px;
    color: var(--primary-color);
}

.info-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 25px;
    margin-bottom: 40px;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 15px;
    min-height: 60px;
}

.info-item > div {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.info-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
    width: 24px;
    text-align: center;
    flex-shrink: 0;
}

.info-label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 5px;
}

.info-value {
    font-weight: 600;
    color: var(--text-primary);
}

.stats-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.stat-item {
    text-align: center;
    padding: 25px;
    background: rgba(17, 17, 17, 0.6);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 15px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition);
}

.stat-item:hover {
    border-color: var(--primary-color);
    transform: translateY(-5px);
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 5px;
}

/* ========================================
   Skills Section
======================================== */
.skills-section {
    background: var(--bg-primary);
}

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

.skill-card {
    background: rgba(10, 10, 10, 0.6);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 30px;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.skill-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition);
}

.skill-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-glow);
}

.skill-card:hover::before {
    transform: scaleX(1);
}

.skill-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.skill-icon i {
    font-size: 1.8rem;
    color: var(--bg-primary);
}

.skill-card h4 {
    font-size: 1.1rem;
    margin-bottom: 15px;
    font-weight: 600;
}

.skill-bar {
    height: 8px;
    background: var(--bg-tertiary);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 10px;
}

.skill-progress {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 4px;
    width: 0;
    transition: width 1.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.skill-percent {
    display: none;
}

.skill-progress {
    background: linear-gradient(90deg, #ff4444 0%, #ffaa00 50%, #00ff88 100%);
}

/* ========================================
   Experience Section
======================================== */
.experience-section {
    background: var(--bg-secondary);
}

.timeline {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background: var(--gradient-primary);
}

.timeline-item {
    position: relative;
    width: 50%;
    padding: 20px 40px;
}

.timeline-item:nth-child(odd) {
    left: 0;
    text-align: right;
}

.timeline-item:nth-child(even) {
    left: 50%;
}

.timeline-marker {
    position: absolute;
    top: 30px;
    width: 20px;
    height: 20px;
    background: var(--gradient-primary);
    border-radius: 50%;
    border: 4px solid var(--bg-secondary);
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.5);
}

.timeline-item:nth-child(odd) .timeline-marker {
    right: -10px;
}

.timeline-item:nth-child(even) .timeline-marker {
    left: -10px;
}

.timeline-content {
    background: rgba(17, 17, 17, 0.6);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 30px;
    border-radius: 15px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition);
}

.timeline-content:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-glow);
}

.timeline-header h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--primary-color);
}

.timeline-header .company {
    display: block;
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 5px;
}

.timeline-header .duration {
    display: inline-block;
    background: var(--gradient-primary);
    color: var(--bg-primary);
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 10px;
}

.timeline-header .location {
    display: block;
    color: var(--text-primary);
    font-size: 0.9rem;
    margin-bottom: 15px;
}

.timeline-details {
    list-style: none;
    text-align: left;
}

.timeline-details li {
    position: relative;
    padding-left: 20px;
    margin-bottom: 10px;
    color: var(--text-primary);
    font-size: 0.95rem;
    line-height: 1.6;
}

.timeline-details li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 6px;
    height: 6px;
    background: var(--primary-color);
    border-radius: 50%;
}

.lang-id {
    display: none;
}

/* ========================================
   Education Section
======================================== */
.education-section {
    background: var(--bg-primary);
}

.education-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.education-card {
    background: rgba(10, 10, 10, 0.6);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition);
    position: relative;
}

.education-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-glow);
}

.education-year {
    background: var(--gradient-primary);
    color: var(--bg-primary);
    text-align: center;
    padding: 15px;
    font-size: 1.5rem;
    font-weight: 800;
}

.education-content {
    padding: 25px;
    text-align: center;
    position: relative;
}

.education-content h4 {
    font-size: 1.1rem;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.education-content p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.education-icon {
    margin-top: 20px;
}

.education-icon i {
    font-size: 2rem;
    color: var(--primary-color);
    opacity: 0.5;
}

/* ========================================
   Contact Section
======================================== */
.contact-section {
    background: var(--bg-secondary);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 30px;
}

.contact-icon {
    width: 70px;
    height: 70px;
    background: var(--gradient-primary);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-icon i {
    font-size: 1.8rem;
    color: var(--bg-primary);
}

.contact-details h4 {
    font-size: 1.1rem;
    margin-bottom: 5px;
    color: var(--text-primary);
}

.contact-details p {
    color: var(--text-secondary);
    font-size: 1rem;
}

.contact-cta {
    background: rgba(17, 17, 17, 0.6);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 40px;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.contact-cta h3 {
    font-size: 1.8rem;
    margin-bottom: 15px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.contact-cta p {
    color: var(--text-secondary);
    margin-bottom: 30px;
    line-height: 1.8;
}

.contact-cta .btn {
    margin: 5px;
}

/* ========================================
   Footer
======================================== */
.main-footer {
    background: var(--bg-primary);
    padding: 40px 0;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    text-align: center;
}

.footer-logo {
    font-size: 2rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 15px;
}

.copyright {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* ========================================
   Animations
======================================== */
[data-aos="fade-up"] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-aos="fade-right"] {
    opacity: 0;
    transform: translateX(-30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-aos="fade-left"] {
    opacity: 0;
    transform: translateX(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-aos="zoom-in"] {
    opacity: 0;
    transform: scale(0.9);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.aos-animate {
    opacity: 1 !important;
    transform: translate(0) scale(1) !important;
}

/* ========================================
   Responsive Design
======================================== */
@media (max-width: 1024px) {
    .hero-content {
        flex-direction: column;
        text-align: center;
    }

    .hero-cta {
        justify-content: center;
    }

    .name {
        font-size: 2.8rem;
    }

    .about-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .experience-badge {
        right: 50%;
        transform: translateX(50%);
    }

    .timeline::before {
        left: 20px;
    }

    .timeline-item {
        width: 100%;
        left: 0 !important;
        padding-left: 60px;
        text-align: left;
    }

    .timeline-item:nth-child(odd) {
        text-align: left;
    }

    .timeline-marker {
        left: 10px !important;
        right: auto !important;
    }

    .contact-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background: rgba(0, 0, 0, 0.98);
        flex-direction: column;
        align-items: center;
        padding: 30px 0;
        gap: 20px;
        transform: translateY(-150%);
        transition: var(--transition);
    }

    .nav-links.active {
        transform: translateY(0);
    }

    .menu-toggle {
        display: flex;
    }

    .name {
        font-size: 2.2rem;
    }

    .typing-container {
        font-size: 1.2rem;
    }

    .section-title {
        font-size: 2.2rem;
    }

    .image-frame {
        width: 250px;
        height: 250px;
    }

    .info-grid {
        grid-template-columns: 1fr;
    }

    .stats-container {
        grid-template-columns: 1fr;
    }

    .language-switcher {
        top: 80px;
        right: 10px;
    }
}

@media (max-width: 480px) {
    .name {
        font-size: 1.8rem;
    }

    .hero-cta {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

    .image-frame {
        width: 200px;
        height: 200px;
    }

    .skills-grid {
        grid-template-columns: 1fr;
    }

    .education-grid {
        grid-template-columns: 1fr;
    }
}