/* Base Variables & Reset */
:root {
    --primary-color: #0d6efd; /* Blue */
    --primary-light: #e6f0ff;
    --primary-dark: #0a58ca;
    --text-main: #212529;
    --text-light: #6c757d;
    --bg-main: #ffffff;             /* White Theme */
    --bg-alt: #f8f9fa;
    --border-color: #dee2e6;
    --transition: all 0.3s ease;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-hover: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Satoshi', sans-serif;
}

html {
    scroll-behavior: smooth;
}

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

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-header h2 {
    font-size: 2.5rem;
    color: var(--text-main);
    margin-bottom: 0.5rem;
}

.section-header .line {
    width: 60px;
    height: 4px;
    background-color: var(--primary-color);
    margin: 0 auto;
    border-radius: 2px;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.8rem 1.8rem;
    font-weight: 500;
    border-radius: 50px;
    transition: var(--transition);
    cursor: pointer;
    font-size: 1rem;
    border: 2px solid transparent;
}

.primary-btn {
    background-color: var(--primary-color);
    color: #fff;
}

.primary-btn:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(13, 110, 253, 0.3);
}

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

.secondary-btn:hover {
    background-color: var(--primary-color);
    color: #fff;
    transform: translateY(-2px);
}

/* Header & Nav */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

header.scrolled {
    padding: 0.5rem 0;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.2rem 5%;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    font-size: 1.8rem;
    font-weight: 900;
    color: var(--text-main);
    letter-spacing: -0.5px;
}

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

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

.nav-links a {
    font-weight: 500;
    color: var(--text-main);
    transition: var(--transition);
    position: relative;
}

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

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

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

.menu-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-main);
}

/* Sections */
section {
    padding: 6rem 5%;
    max-width: 1200px;
    margin: 0 auto;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 8rem;
}

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

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    color: var(--text-main);
    animation: fadeInUp 0.8s ease backwards;
}

.hero h1 span, .hero h2 span {
    color: var(--primary-color);
}

.hero h2 {
    font-size: 2rem;
    font-weight: 500;
    color: var(--text-light);
    margin-bottom: 1.5rem;
    animation: fadeInUp 0.8s ease 0.2s backwards;
}

.hero p {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 2.5rem;
    max-width: 550px;
    animation: fadeInUp 0.8s ease 0.4s backwards;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    margin-bottom: 3rem;
    animation: fadeInUp 0.8s ease 0.6s backwards;
}

.social-links {
    display: flex;
    gap: 1rem;
    animation: fadeInUp 0.8s ease 0.8s backwards;
}

.social-links a {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--primary-light);
    color: var(--primary-color);
    font-size: 1.2rem;
    transition: var(--transition);
}

.social-links a:hover {
    background-color: var(--primary-color);
    color: #fff;
    transform: translateY(-3px);
}

/* Hero Visual Animation */
.hero-visual {
    position: absolute;
    right: 5%;
    top: 50%;
    transform: translateY(-50%);
    width: 450px;
    height: 450px;
    z-index: 1;
}

.hero-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 40% 60% 70% 30% / 40% 50% 60% 50%;
    animation: morph 8s ease-in-out infinite both alternate;
    box-shadow: 0 10px 30px rgba(13, 110, 253, 0.15);
    border: 4px solid #fff;
}


/* About */
.about {
    background-color: var(--bg-alt);
    border-radius: 20px;
    margin-bottom: 2rem;
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.about-text p {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 1.5rem;
}

/* Skills */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 2rem;
}

.skill-card {
    background-color: #fff;
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.skill-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-light);
}

.skill-card i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.skill-card h3 {
    font-size: 1.1rem;
    color: var(--text-main);
}

/* Projects */
.projects {
    background-color: #fff;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 2.5rem;
}

.project-card {
    background-color: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
}

.project-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

.project-img {
    width: 100%;
    height: 220px;
    overflow: hidden;
    border-bottom: 1px solid var(--border-color);
}

.project-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.project-card:hover .project-img img {
    transform: scale(1.05);
}

.project-info {
    padding: 1.8rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.project-info h3 {
    font-size: 1.4rem;
    margin-bottom: 0.8rem;
    color: var(--text-main);
}

.project-info p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.project-tech {
    display: flex;
    gap: 0.8rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.project-tech span {
    background-color: var(--primary-light);
    color: var(--primary-dark);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

.project-link {
    color: var(--primary-color);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
}

.project-link:hover {
    color: var(--primary-dark);
    gap: 0.8rem;
}

/* Contact */
.contact {
    background-color: var(--primary-light);
    border-radius: 20px;
    margin-bottom: 6rem;
}

.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-info h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--text-main);
}

.contact-info > p {
    color: var(--text-light);
    margin-bottom: 2rem;
}

.info-item {
    display: flex;
    align-items: flex-start;
    gap: 1.2rem;
    margin-bottom: 1.5rem;
}

.info-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
    background-color: #fff;
    width: 50px;
    height: 50px;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 50%;
    box-shadow: var(--shadow);
}

.info-item h4 {
    font-size: 1.1rem;
    margin-bottom: 0.2rem;
    color: var(--text-main);
}

.info-item a, .info-item p {
    color: var(--text-light);
    transition: var(--transition);
}

.info-item a:hover {
    color: var(--primary-color);
}

.contact-form {
    background-color: #fff;
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    transition: var(--transition);
    font-family: 'Satoshi', sans-serif;
    background-color: var(--bg-alt);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(13, 110, 253, 0.1);
    background-color: #fff;
}

.submit-btn {
    width: 100%;
}

.form-status {
    margin-top: 1rem;
    padding: 0.8rem;
    border-radius: 8px;
    text-align: center;
    font-weight: 500;
}

.form-status.success {
    background-color: #d1e7dd;
    color: #0f5132;
}

/* Footer */
footer {
    text-align: center;
    padding: 2rem 5%;
    background-color: #fff;
    color: var(--text-light);
    border-top: 1px solid var(--border-color);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes morph {
    0% { border-radius: 40% 60% 70% 30% / 40% 50% 60% 50%; }
    34% { border-radius: 70% 30% 50% 50% / 30% 30% 70% 70%; }
    67% { border-radius: 100% 60% 60% 100% / 100% 100% 60% 60%; }
    100% { border-radius: 40% 60% 70% 30% / 40% 50% 60% 50%; }
}

/* Media Queries */
@media (max-width: 992px) {
    .container, section {
        padding: 5rem 5%;
    }
    
    .hero {
        flex-direction: column;
        justify-content: center;
        text-align: center;
        padding-top: 6rem;
    }

    .hero-content {
        margin: 0 auto;
    }

    .hero h1 { font-size: 3rem; }
    
    .hero-actions, .social-links {
        justify-content: center;
    }

    .hero-visual {
        position: relative;
        right: auto;
        top: auto;
        transform: none;
        margin: 4rem auto 0;
        width: 300px;
        height: 300px;
    }

    .contact-container {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
}

@media (max-width: 768px) {
    nav {
        padding: 1rem 5%;
    }

    .menu-toggle {
        display: block;
    }

    .nav-links {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background-color: #fff;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 3rem;
        transition: var(--transition);
        box-shadow: 0 10px 10px rgba(0, 0, 0, 0.05);
    }

    .nav-links.active {
        left: 0;
    }

    .nav-links a {
        font-size: 1.5rem;
    }

    .hero h1 { font-size: 2.5rem; }
    .hero h2 { font-size: 1.5rem; }
    
    .section-header h2 { font-size: 2rem; }
}

@media (max-width: 480px) {
    .hero-actions {
        flex-direction: column;
    }
    
    .project-card, .skill-card {
        margin: 0 1rem;
    }
}