/* ROOT VARIABLES - BLUE THEME */
:root {
    --bg-primary: #040d21;
    --bg-secondary: #0a192f;
    --bg-glass: rgba(10, 25, 47, 0.7);
    --text-primary: #ccd6f6;
    --text-secondary: #8892b0;
    --accent: #64ffda;
    --accent-glow: rgba(100, 255, 218, 0.4);
    --accent-blue: #0070f3;
    --card-bg: rgba(17, 34, 64, 0.6);
    --card-border: rgba(100, 255, 218, 0.1);
    
    --font-main: 'Outfit', sans-serif;
    --transition-fast: 0.3s ease;
    --transition-slow: 0.5s cubic-bezier(0.645, 0.045, 0.355, 1);
}

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

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-main);
    line-height: 1.6;
    overflow-x: hidden;
}

/* TYPOGRAPHY */
h1, h2, h3, h4, h5, h6 {
    color: var(--text-primary);
    font-weight: 600;
}

p {
    color: var(--text-secondary);
}

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

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    position: relative;
    align-self: center;
}

.section-title span {
    color: var(--accent);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--accent);
    border-radius: 2px;
}

.section-padding {
    padding: 100px 5%;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

/* BUTTONS */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 8px;
    font-weight: 500;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition-fast);
    text-align: center;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

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

.btn-primary:hover {
    background: var(--accent-glow);
    box-shadow: 0 0 15px var(--accent-glow);
}

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

.btn-outline:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.btn-sm {
    padding: 8px 20px;
    font-size: 0.9rem;
}

/* NAVBAR */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 20px 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
    transition: var(--transition-fast);
    backdrop-filter: blur(10px);
}

.navbar.scrolled {
    background: var(--bg-glass);
    padding: 15px 5%;
    box-shadow: 0 5px 20px rgba(0,0,0,0.5);
}

.logo {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: 0.5px;
}

.logo span {
    color: var(--accent);
    font-weight: 300;
}

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

.nav-links li a {
    font-size: 1rem;
    font-weight: 400;
    position: relative;
}

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

.nav-links li a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background-color: var(--accent);
    transition: width 0.3s;
}

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

.hamburger {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--accent);
}

/* HERO SECTION */
.hero {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 40px;
    padding-top: 120px;
}

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

.hero h1 {
    font-size: 4.5rem;
    line-height: 1.1;
    margin-bottom: 15px;
    background: linear-gradient(to right, #e2e8f0, #94a3b8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero h2 {
    font-size: 2rem;
    color: var(--text-secondary);
    margin-bottom: 25px;
}

.hero-desc {
    max-width: 700px;
    font-size: 1.1rem;
    margin: 0 auto 40px;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
}

.hero-image-container {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-img {
    width: 100%;
    max-width: 400px;
    border-radius: 50%;
    position: relative;
    z-index: 2;
    box-shadow: 0 20px 40px rgba(0,0,0,0.5);
    border: 1px solid var(--card-border);
}

.shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    z-index: 1;
}

.shape-1 {
    width: 300px;
    height: 300px;
    background: var(--accent-glow);
    top: -50px;
    right: 50px;
}

.shape-2 {
    width: 250px;
    height: 250px;
    background: rgba(0, 112, 243, 0.3);
    bottom: -50px;
    left: 50px;
}

/* ABOUT SECTION */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    margin-top: 20px;
}

.about-text p {
    margin-bottom: 20px;
    font-size: 1.1rem;
}

.about-skills h3 {
    margin-bottom: 20px;
    color: var(--text-primary);
    font-size: 1.5rem;
}

.skills-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
}

.skill-tag {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    padding: 10px 20px;
    border-radius: 30px;
    font-size: 0.9rem;
    color: var(--accent);
    transition: var(--transition-fast);
}

.skill-tag:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px var(--accent-glow);
    background: rgba(100, 255, 218, 0.1);
}

/* PORTFOLIO SECTION */
.portfolio-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 30px;
    margin-top: 20px;
}

.portfolio-card {
    flex: 1 1 320px;
    max-width: 400px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    overflow: hidden;
    transition: var(--transition-fast);
    backdrop-filter: blur(10px);
}

.portfolio-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

.portfolio-img-container {
    position: relative;
    width: 100%;
    height: 220px;
    overflow: hidden;
}

.portfolio-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.portfolio-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--bg-secondary), #0d274d);
}

.portfolio-card:hover .portfolio-img {
    transform: scale(1.1);
}

.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(4, 13, 33, 0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: var(--transition-fast);
}

.portfolio-card:hover .portfolio-overlay {
    opacity: 1;
}

.portfolio-info {
    padding: 25px;
}

.portfolio-info h3 {
    font-size: 1.4rem;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.portfolio-info p {
    font-size: 0.95rem;
    margin-bottom: 20px;
}

.project-tags {
    display: flex;
    gap: 10px;
    font-size: 0.8rem;
    font-family: monospace;
    color: var(--text-secondary);
}

.project-tags span {
    background: rgba(100, 255, 218, 0.1);
    padding: 5px 10px;
    border-radius: 4px;
}

.view-more-container {
    text-align: center;
    margin-top: 50px;
}

/* CONTACT SECTION */
.contact-desc {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 50px;
    font-size: 1.1rem;
}

.contact-container {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 50px;
    max-width: 900px;
    margin: 0 auto;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 15px;
    font-size: 1.1rem;
}

.info-item i {
    color: var(--accent);
    font-size: 1.5rem;
}

.social-links {
    display: flex;
    gap: 20px;
    margin-top: 20px;
}

.social-links a {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 45px;
    height: 45px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 50%;
    color: var(--text-primary);
    transition: var(--transition-fast);
}

.social-links a:hover {
    background: var(--accent-glow);
    color: var(--accent);
    transform: translateY(-5px);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: var(--font-main);
    font-size: 1rem;
    transition: var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 10px var(--accent-glow);
}

/* FOOTER */
footer {
    padding: 30px 5%;
    text-align: center;
    background: var(--bg-secondary);
    border-top: 1px solid var(--card-border);
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.footer-logo {
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.footer-logo span {
    color: var(--accent);
    font-weight: 300;
}

/* ANIMATIONS */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-in.appear {
    opacity: 1;
    transform: translateY(0);
}

/* RESPONSIVE DESIGN */
@media (max-width: 992px) {
    .hero {
        padding-top: 150px;
    }
    
    .hero h1 {
        font-size: 3.5rem;
    }
    
    .hero-desc {
        margin: 0 auto 40px;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .contact-container {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        right: -100%;
        top: 0;
        height: 100vh;
        width: 70%;
        background: var(--bg-secondary);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        transition: 0.5s ease-in-out;
        box-shadow: -10px 0 30px rgba(0,0,0,0.5);
    }
    
    .nav-links.active {
        right: 0;
    }
    
    .hamburger {
        display: block;
        z-index: 1001;
    }
    
    .section-padding {
        padding: 80px 5%;
    }
    
    .hero h1 {
        font-size: 2.8rem;
    }
    
    .hero h2 {
        font-size: 1.5rem;
    }
}