/* ========================================
   Portfolio Website Styles - Liquid Glass
   ======================================== */

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

:root {
    --primary-color: #00d4ff;
    --secondary-color: #0099cc;
    --background-color: #0a0e27;
    --text-color: #ffffff;
    --light-text: #b0b8cc;
    --border-color: rgba(255, 255, 255, 0.1);
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --shadow: 0 8px 32px rgba(0, 212, 255, 0.1);
    --shadow-lg: 0 20px 60px rgba(0, 212, 255, 0.2);
}

html {
    background: linear-gradient(135deg, #0a0e27 0%, #1a1f3a 50%, #0f1632 100%);
    background-attachment: fixed;
    min-height: 100vh;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
        'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
        sans-serif;
    color: var(--text-color);
    background: transparent;
    line-height: 1.6;
}

/* Navigation */
.navbar {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--glass-border);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
    text-decoration: none;
    text-shadow: 0 0 20px rgba(0, 212, 255, 0.5);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    color: var(--text-color);
    text-decoration: none;
    transition: all 0.3s ease;
    padding: 0.5rem 1rem;
    border-radius: 0.375rem;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
    background: rgba(0, 212, 255, 0.1);
    box-shadow: 0 0 15px rgba(0, 212, 255, 0.3);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.1) 0%, rgba(0, 153, 204, 0.05) 100%);
    backdrop-filter: blur(10px);
    color: white;
    padding: 6rem 2rem;
    text-align: center;
    border-bottom: 1px solid var(--glass-border);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(0, 212, 255, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 6s ease-in-out infinite;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -5%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(0, 153, 204, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 8s ease-in-out infinite reverse;
}

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

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-content h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    font-weight: bold;
    text-shadow: 0 0 20px rgba(0, 212, 255, 0.5);
}

.hero .subtitle {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.95;
    color: var(--light-text);
}

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

/* Buttons */
.btn {
    padding: 0.75rem 1.5rem;
    border-radius: 0.375rem;
    text-decoration: none;
    transition: all 0.3s ease;
    font-weight: 500;
    border: 2px solid transparent;
    cursor: pointer;
    display: inline-block;
}

.btn-primary {
    background: rgba(0, 212, 255, 0.2);
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    backdrop-filter: blur(10px);
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.3);
}

.btn-primary:hover {
    background: rgba(0, 212, 255, 0.3);
    transform: translateY(-2px) scale(1.05);
    box-shadow: 0 0 30px rgba(0, 212, 255, 0.5);
}

.btn-secondary {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(0, 212, 255, 0.1);
    transform: translateY(-2px) scale(1.05);
    box-shadow: 0 0 30px rgba(0, 212, 255, 0.5);
}

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

/* Sections */
section {
    padding: 4rem 2rem;
}

section h2 {
    font-size: 2rem;
    margin-bottom: 2rem;
    text-align: center;
    color: var(--text-color);
    text-shadow: 0 0 20px rgba(0, 212, 255, 0.3);
}

section h1 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    color: var(--text-color);
    text-shadow: 0 0 20px rgba(0, 212, 255, 0.3);
}

/* Featured Projects */
.featured-projects {
    background: transparent;
}

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

.project-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    border: 1px solid var(--glass-border);
    position: relative;
    overflow: hidden;
}

.project-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(0, 212, 255, 0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.project-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-8px);
    border-color: rgba(0, 212, 255, 0.3);
    background: rgba(0, 212, 255, 0.08);
}

.project-card h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.25rem;
    position: relative;
    z-index: 1;
    text-shadow: 0 0 10px rgba(0, 212, 255, 0.3);
}

.project-card p {
    color: var(--light-text);
    margin-bottom: 1rem;
    line-height: 1.6;
    position: relative;
    z-index: 1;
}

.project-company {
    color: var(--primary-color);
    font-weight: 500;
    font-size: 0.95rem;
    text-shadow: 0 0 10px rgba(0, 212, 255, 0.2);
}

.project-metrics {
    color: var(--primary-color);
    font-weight: 600;
    font-size: 0.9rem;
    padding: 0.5rem 0;
    border-top: 1px solid var(--glass-border);
    border-bottom: 1px solid var(--glass-border);
}

.tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.tech-tag {
    background: rgba(0, 212, 255, 0.15);
    color: var(--primary-color);
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    border: 1px solid rgba(0, 212, 255, 0.3);
    backdrop-filter: blur(10px);
}

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

.project-links a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

.project-links a:hover {
    color: var(--secondary-color);
    text-decoration: underline;
}

/* Skills */
.skills {
    background: transparent;
}

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

.skill-category {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    padding: 2rem;
    border-radius: 1rem;
    border: 1px solid var(--glass-border);
    transition: all 0.3s ease;
}

.skill-category:hover {
    background: rgba(0, 212, 255, 0.08);
    border-color: rgba(0, 212, 255, 0.3);
    box-shadow: var(--shadow);
}

.skill-category h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    text-shadow: 0 0 10px rgba(0, 212, 255, 0.3);
}

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

.skill-category li {
    padding: 0.5rem 0;
    color: var(--light-text);
    border-bottom: 1px solid var(--glass-border);
    transition: color 0.3s ease;
}

.skill-category li:hover {
    color: var(--primary-color);
}

.skill-category li:last-child {
    border-bottom: none;
}

/* About Section */
.about-section {
    max-width: 800px;
    margin: 0 auto;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    padding: 3rem;
    border-radius: 1rem;
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow);
}

.about-content {
    color: var(--light-text);
    line-height: 1.8;
}

.about-content p {
    margin-bottom: 1.5rem;
}

.about-content h2 {
    text-align: left;
    margin-top: 2rem;
    color: var(--primary-color);
    text-shadow: 0 0 10px rgba(0, 212, 255, 0.3);
}

.about-links {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.about-links a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    text-shadow: 0 0 10px rgba(0, 212, 255, 0.2);
}

.about-links a:hover {
    text-shadow: 0 0 15px rgba(0, 212, 255, 0.5);
    transform: translateY(-2px);
}

/* Projects Section */
.projects-section {
    max-width: 1200px;
    margin: 0 auto;
}

/* Error Section */
.error-section {
    text-align: center;
    padding: 4rem 2rem;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border-radius: 1rem;
    border: 1px solid var(--glass-border);
    margin: 2rem;
    box-shadow: var(--shadow);
}

.error-section h1 {
    font-size: 5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    text-shadow: 0 0 20px rgba(0, 212, 255, 0.5);
}

.error-section p {
    color: var(--light-text);
    margin-bottom: 2rem;
}

/* Footer */
.footer {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    color: var(--light-text);
    padding: 2rem;
    text-align: center;
    margin-top: 4rem;
    border-top: 1px solid var(--glass-border);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-top: 1rem;
    flex-wrap: wrap;
}

.social-links a {
    color: var(--primary-color);
    text-decoration: none;
    transition: all 0.3s ease;
    text-transform: capitalize;
    text-shadow: 0 0 10px rgba(0, 212, 255, 0.2);
}

.social-links a:hover {
    text-shadow: 0 0 20px rgba(0, 212, 255, 0.5);
    transform: scale(1.1);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        gap: 1rem;
    }

    .hero-content h1 {
        font-size: 2rem;
    }

    .hero .subtitle {
        font-size: 1rem;
    }

    section h2 {
        font-size: 1.5rem;
    }

    section h1 {
        font-size: 2rem;
    }

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

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

    .nav-container {
        flex-direction: column;
        gap: 1rem;
    }

    .nav-menu {
        flex-direction: column;
        gap: 0.5rem;
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 1.5rem;
    }

    section {
        padding: 2rem 1rem;
    }

    .error-section h1 {
        font-size: 3rem;
    }
}