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

:root {
    --bg-dark: #0a0a0a;
    --bg-card: rgba(20, 20, 20, 0.6);
    --bg-glass: rgba(255, 255, 255, 0.03);
    --text-primary: #f5f5f5;
    --text-secondary: #a1a1aa;
    --accent-teal: #14b8a6;
    --accent-teal-glow: rgba(20, 184, 166, 0.3);
    --accent-gradient: linear-gradient(135deg, #14b8a6 0%, #0d9488 100%);
    --card-border: rgba(255, 255, 255, 0.1);
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

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

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

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-smooth);
}

ul {
    list-style: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Background Gradients & Animations */
.bg-circles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
    background: var(--bg-dark);
}

.circle {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.15;
    animation: drift 20s infinite alternate ease-in-out;
}

@keyframes drift {
    0% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(100px, -50px) scale(1.1); }
    100% { transform: translate(-50px, 100px) scale(0.9); }
}

.circle-1 {
    width: 400px;
    height: 400px;
    background: var(--accent-teal);
    top: -100px;
    right: -100px;
    animation-delay: 0s;
}

.circle-2 {
    width: 500px;
    height: 500px;
    background: #0d9488;
    bottom: -100px;
    left: -100px;
    animation-delay: -5s;
    opacity: 0.1;
}

/* Interactive Gradient Overlay */
.interactive-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
    background: radial-gradient(
        600px circle at var(--mouse-x, 50%) var(--mouse-y, 50%),
        rgba(20, 184, 166, 0.08),
        transparent 40%
    );
}

/* Header & Navigation */
header {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    padding: 1.5rem 0;
    transition: var(--transition-smooth);
}

header.scrolled {
    background: rgba(10, 10, 10, 0.8);
    backdrop-filter: blur(12px);
    padding: 1rem 0;
    border-bottom: 1px solid var(--card-border);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    font-family: 'Outfit', sans-serif;
    letter-spacing: -0.5px;
}

.logo span {
    color: var(--accent-teal);
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
}

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

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding-top: 80px;
}

.hero-content {
    max-width: 800px;
    opacity: 0;
    transform: translateY(30px);
    transition: all 1s ease-out;
}

.hero-content.visible {
    opacity: 1;
    transform: translateY(0);
}

.hero-badge {
    display: inline-block;
    padding: 6px 16px;
    background: var(--bg-glass);
    border: 1px solid var(--card-border);
    border-radius: 99px;
    color: var(--accent-teal);
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 1.5rem;
}

.hero h1 {
    font-size: 4.5rem;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -2px;
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-group {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.btn {
    padding: 12px 28px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 15px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

.btn-primary {
    background: var(--accent-gradient);
    color: #fff;
    box-shadow: 0 4px 15px var(--accent-teal-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--accent-teal-glow);
}

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

.btn-outline:hover {
    background: var(--bg-glass);
    border-color: var(--text-secondary);
}

/* Sections General */
section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.section-header p {
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* Projects Grid */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2rem;
}

.project-card {
    background: var(--bg-card);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    overflow: hidden;
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
    height: 100%;
    backdrop-filter: blur(10px);
}

.project-card:hover {
    transform: translateY(-10px);
    border-color: var(--accent-teal);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4), 0 0 10px var(--accent-teal-glow);
}

.project-image {
    height: 200px;
    background: #1a1a1a;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.project-image i {
    font-size: 4rem;
    color: var(--accent-teal);
    opacity: 0.5;
    transition: var(--transition-smooth);
}

.project-card:hover .project-image i {
    transform: scale(1.1);
    opacity: 0.8;
}

.project-content {
    padding: 2rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.project-content h3 {
    margin-bottom: 0.5rem;
    font-size: 1.5rem;
}

.project-subtitle {
    color: var(--accent-teal);
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 1rem;
    display: block;
}

.project-content p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    flex: 1;
}

.tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.tech-tag {
    padding: 4px 10px;
    background: var(--bg-glass);
    border: 1px solid var(--card-border);
    border-radius: 6px;
    font-size: 11px;
    font-weight: 500;
    color: var(--text-secondary);
}

.project-links {
    display: flex;
    gap: 1rem;
}

.link-icon {
    font-size: 18px;
    color: var(--text-secondary);
}

.link-icon:hover {
    color: var(--accent-teal);
}

/* Skills Section */
.skills-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
}

.skill-category h3 {
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--card-border);
    display: flex;
    align-items: center;
    gap: 10px;
}

.skill-list {
    display: grid;
    gap: 1rem;
}

.skill-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 12px 16px;
    background: var(--bg-card);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    transition: var(--transition-smooth);
}

.skill-item:hover {
    background: var(--bg-glass);
    border-color: var(--accent-teal);
    transform: translateX(5px);
}

.skill-icon {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-teal);
    font-size: 20px;
}

.skill-name {
    font-weight: 500;
    font-size: 0.95rem;
}

/* Footer */
footer {
    padding: 4rem 0;
    border-top: 1px solid var(--card-border);
    margin-top: 4rem;
}

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

.footer-text {
    color: var(--text-secondary);
    font-size: 14px;
}

.social-links {
    display: flex;
    gap: 1.5rem;
}

.social-link {
    font-size: 20px;
    color: var(--text-secondary);
}

.social-link:hover {
    color: var(--accent-teal);
    transform: translateY(-3px);
}

/* Base Animations & Visibility classes for AOS */
[data-aos] {
    opacity: 0;
    transition-property: transform, opacity;
}

[data-aos].aos-animate {
    opacity: 1;
}

/* Media Queries */
@media (max-width: 768px) {
    .nav-links {
        display: none; /* Mobile menu placeholder */
    }

    .hero h1 {
        font-size: 3rem;
    }

    .hero p {
        font-size: 1.1rem;
    }

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

    .footer-content {
        flex-direction: column;
        gap: 2rem;
        text-align: center;
    }
}