:root {
    --bg: #0f172a;
    --primary: #7dd3fc;
    --secondary: #38bdf8;
    --text: #e2e8f0;
    --text-light: #94a3b8;
    --card-bg: rgba(15, 23, 42, 0.6);
    --transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

@font-face {
    font-family: 'ClashDisplay';
    src: url('https://fonts.cdnfonts.com/css/clash-display') format('woff2');
}

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

html {
    scroll-behavior: smooth;
}

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

h1, h2, h3 {
    font-family: 'ClashDisplay', sans-serif;
    font-weight: 600;
}

/* Particles Background */
#particles-js {
    position: fixed;
    width: 100%;
    height: 100%;
    z-index: -1;
    top: 0;
    left: 0;
}

/* Layout */
.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 8rem 0;
    position: relative;
}

/* Header */
header {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    padding: 1.5rem 0;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    background: rgba(15, 23, 42, 0.8);
    border-bottom: 1px solid rgba(148, 163, 184, 0.1);
    transition: var(--transition);
}

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

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    text-decoration: none;
}

.nav-links {
    display: flex;
    gap: 2.5rem;
}

.nav-links a {
    color: var(--text-light);
    text-decoration: none;
    font-size: 1rem;
    font-weight: 500;
    position: relative;
    transition: var(--transition);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    transition: var(--transition);
}

.nav-links a:hover {
    color: var(--text);
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-links a.active::after {
    width: 100%;
}

/* Hero Section */
#hero {
    position: relative;
    overflow: hidden;
}

.hero-content {
    max-width: 700px;
    z-index: 2;
}

.hero-subtitle {
    color: var(--primary);
    font-size: 1.2rem;
    margin-bottom: 1rem;
    opacity: 0;
    animation: fadeInUp 0.8s 0.2s forwards;
}

.hero-title {
    font-size: clamp(2.5rem, 8vw, 4.5rem);
    line-height: 1.1;
    margin-bottom: 1.5rem;
    background: linear-gradient(90deg, #e2e8f0, #94a3b8);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    opacity: 0;
    animation: fadeInUp 0.8s 0.4s forwards;
}

.hero-tagline {
    font-size: clamp(1.2rem, 4vw, 1.8rem);
    color: var(--text-light);
    margin-bottom: 2rem;
    opacity: 0;
    animation: fadeInUp 0.8s 0.6s forwards;
}

.hero-description {
    max-width: 540px;
    margin-bottom: 3rem;
    color: var(--text-light);
    opacity: 0;
    animation: fadeInUp 0.8s 0.8s forwards;
}

.cta-buttons {
    display: flex;
    gap: 1.5rem;
    opacity: 0;
    animation: fadeInUp 0.8s 1s forwards;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 1.8rem;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition);
}

.cta-button.primary {
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    color: var(--bg);
    box-shadow: 0 4px 15px rgba(56, 189, 248, 0.3);
}

.cta-button.primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(56, 189, 248, 0.4);
}

.cta-button.secondary {
    border: 1px solid var(--primary);
    color: var(--primary);
}

.cta-button.secondary:hover {
    background: rgba(125, 211, 252, 0.1);
    transform: translateY(-3px);
}

/* Experience Section */
#experience {
    background: linear-gradient(to bottom, rgba(15, 23, 42, 0.9), rgba(15, 23, 42, 0.7));
}

.section-title {
    font-size: clamp(1.8rem, 5vw, 2.5rem);
    margin-bottom: 5rem;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 60%;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    border-radius: 3px;
}

.experience-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.experience-card {
    background: var(--card-bg);
    border-radius: 1rem;
    padding: 2rem;
    border: 1px solid rgba(148, 163, 184, 0.1);
    transition: var(--transition);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    opacity: 0;
    transform: translateY(20px);
}

.experience-card.animate {
    animation: fadeInUp 0.6s forwards;
}

.experience-card:nth-child(1) { animation-delay: 0.2s; }
.experience-card:nth-child(2) { animation-delay: 0.4s; }
.experience-card:nth-child(3) { animation-delay: 0.6s; }

.experience-card:hover {
    transform: translateY(-5px);
    border-color: rgba(56, 189, 248, 0.3);
    box-shadow: 0 10px 30px rgba(15, 23, 42, 0.5);
}

.experience-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.experience-title {
    font-size: 1.3rem;
    color: var(--text);
}

.experience-company {
    color: var(--primary);
    font-weight: 500;
    display: block;
    margin-top: 0.3rem;
}

.experience-date {
    color: var(--text-light);
    font-size: 0.9rem;
    white-space: nowrap;
}

.experience-description {
    margin-left: 1rem;
}

.experience-description li {
    margin-bottom: 0.8rem;
    position: relative;
    list-style-type: none;
    color: var(--text-light);
}

.experience-description li::before {
    content: '▹';
    position: absolute;
    left: -1.2rem;
    color: var(--primary);
}

/* Skills Section */
#skills {
    overflow: hidden;
}

.skills-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.skill-card {
    background: var(--card-bg);
    border-radius: 1rem;
    padding: 2rem;
    border: 1px solid rgba(148, 163, 184, 0.1);
    transition: var(--transition);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    opacity: 0;
    transform: translateY(20px);
}

.skill-card.animate {
    animation: fadeInUp 0.6s forwards;
}

.skill-card:nth-child(1) { animation-delay: 0.2s; }
.skill-card:nth-child(2) { animation-delay: 0.4s; }
.skill-card:nth-child(3) { animation-delay: 0.6s; }

.skill-card:hover {
    transform: translateY(-5px);
    border-color: rgba(56, 189, 248, 0.3);
}

.skill-title {
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.8rem;
    color: var(--primary);
}

.skill-title i {
    font-size: 1.5rem;
}

.skill-list {
    list-style: none;
}

.skill-item {
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.8rem;
    color: var(--text-light);
    transition: var(--transition);
}

.skill-item:hover {
    color: var(--text);
}

.skill-item::before {
    content: '';
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--primary);
}

/* Contact Section */
#contact {
    text-align: center;
}

.contact-title {
    font-size: clamp(1.8rem, 5vw, 2.5rem);
    margin-bottom: 1.5rem;
}

.contact-subtitle {
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto 3rem;
    line-height: 1.6;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.social-link {
    color: var(--text-light);
    font-size: 1.8rem;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
}

.social-link i {
    transition: var(--transition);
}

.social-link span {
    font-size: 0.8rem;
    margin-top: 0.5rem;
    opacity: 0;
    transition: var(--transition);
}

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

.social-link:hover i {
    transform: translateY(-5px);
}

.social-link:hover span {
    opacity: 1;
}

.email-link {
    display: inline-block;
    color: var(--primary);
    font-size: 1.2rem;
    text-decoration: none;
    border-bottom: 1px dashed var(--primary);
    padding-bottom: 0.2rem;
    transition: var(--transition);
}

.email-link:hover {
    color: var(--secondary);
    border-bottom-color: var(--secondary);
}

/* Footer */
footer {
    text-align: center;
    padding: 3rem 0;
    color: var(--text-light);
    font-size: 0.9rem;
    border-top: 1px solid rgba(148, 163, 184, 0.1);
}

.footer-text {
    margin-bottom: 1rem;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

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

    .hero-description {
        margin: 0 auto 3rem;
    }

    .cta-buttons {
        justify-content: center;
        flex-wrap: wrap;
    }

    section {
        padding: 6rem 0;
    }
}