/* ================================
   GLOBAL STYLES & VARIABLES
   ================================ */

:root {
    --primary-color: #5865f2;
    --secondary-color: #7289da;
    --tertiary-color: #5c7cfa;
    --accent-color: #748ffc;
    --success-color: #2ecc71;
    --danger-color: #e74c3c;
    --dark-bg: #ffffff;
    --light-bg: #f8f9fa;
    --card-bg: #ffffff;
    --text-primary: #2c3e50;
    --text-secondary: #7f8c8d;
    --border-color: #e1e8ed;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    color: var(--text-primary);
    overflow-x: hidden;
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ================================
   NAVIGATION BAR
   ================================ */

.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.95);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
}

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

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--tertiary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    cursor: pointer;
    transition: var(--transition);
}

.logo:hover {
    transform: scale(1.05);
}

.dot {
    color: var(--accent-color);
}

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

.nav-link {
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition);
    font-weight: 500;
    position: relative;
    padding: 0.5rem 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0%;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--tertiary-color));
    transition: var(--transition);
}

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

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

.auth-link {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    padding: 0.6rem 1.2rem;
    border-radius: 50px;
    color: white;
}

.auth-link:hover::after {
    width: 0%;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    margin: 3px 0;
    border-radius: 10px;
    transition: var(--transition);
}

/* ================================
   HERO SECTION
   ================================ */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 80px 20px 20px;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

#canvas-background {
    width: 100%;
    height: 100%;
    display: block;
}

.hero-content {
    text-align: center;
    position: relative;
    z-index: 10;
    animation: fadeInUp 1s ease;
}

.glow {
    position: absolute;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, var(--primary-color) 0%, transparent 70%);
    border-radius: 50%;
    opacity: 0.15;
    top: -150px;
    left: 50%;
    transform: translateX(-50%);
    filter: blur(50px);
    animation: float 6s ease-in-out infinite;
}

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

.hero-title {
    font-size: 4rem;
    font-weight: 800;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #667eea, #764ba2, #f093fb);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -2px;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.3rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: 0.8rem 2rem;
    border: none;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    display: inline-block;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.5);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid var(--border-color);
}

.btn-secondary:hover {
    border-color: var(--primary-color);
    background: rgba(102, 126, 234, 0.1);
    transform: translateY(-2px);
}

.btn-google {
    background: white;
    color: #333;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
}

.btn-google:hover {
    background: #f5f5f5;
    transform: translateY(-2px);
}

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

/* ================================
   SECTIONS
   ================================ */

.section {
    padding: 6rem 0;
    position: relative;
}

.section-title {
    font-size: 3rem;
    text-align: center;
    margin-bottom: 4rem;
    background: linear-gradient(135deg, var(--primary-color), var(--tertiary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 800;
}

/* ================================
   ABOUT SECTION
   ================================ */

.about {
    background: linear-gradient(135deg, rgba(88, 101, 242, 0.05) 0%, rgba(114, 137, 218, 0.05) 100%);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-image {
    position: relative;
}

.image-placeholder {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.image-placeholder::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent 30%, rgba(102, 126, 234, 0.2) 50%, transparent 70%);
    animation: shine 3s infinite;
    z-index: 10;
}

@keyframes shine {
    0% {
        transform: rotate(0deg) translate(-100%, -100%);
    }
    100% {
        transform: rotate(0deg) translate(100%, 100%);
    }
}

.image-placeholder img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.about-text h3 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.about-text p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-bottom: 2rem;
}

.skill-card {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: var(--transition);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.skill-card:hover {
    border-color: var(--primary-color);
    background: rgba(88, 101, 242, 0.05);
    transform: translateY(-5px);
    box-shadow: 0 8px 16px rgba(88, 101, 242, 0.15);
}

.skill-icon {
    font-size: 2rem;
}

.social-links-about {
    display: flex;
    gap: 1.5rem;
    margin-top: 2rem;
}

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

.social-icon:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-5px);
}

/* ================================
   PROJECTS SECTION
   ================================ */

.projects {
    background: transparent;
}

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

.project-card {
    background: var(--card-bg);
    border-radius: 15px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.project-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-10px);
    box-shadow: 0 12px 32px rgba(88, 101, 242, 0.2);
}

.project-image {
    position: relative;
    height: 250px;
    overflow: hidden;
}

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

.project-center:hover img {
    transform: scale(1.1);
}

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

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

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

.project-btn {
    padding: 0.6rem 1.2rem;
    background: var(--primary-color);
    color: white;
    border-radius: 25px;
    text-decoration: none;
    font-size: 0.9rem;
    transition: var(--transition);
}

.project-btn:hover {
    background: var(--secondary-color);
    transform: scale(1.05);
}

.project-content {
    padding: 2rem;
}

.project-content h3 {
    font-size: 1.5rem;
    margin-bottom: 0.8rem;
    color: var(--text-primary);
}

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

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

.project-tech span {
    background: rgba(102, 126, 234, 0.2);
    color: var(--primary-color);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    border: 1px solid var(--border-color);
}

/* ================================
   CONTACT SECTION
   ================================ */

.contact {
    background: linear-gradient(135deg, rgba(46, 204, 113, 0.05) 0%, rgba(52, 152, 219, 0.05) 100%);
}

.contact-info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.contact-info-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.contact-info-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(88, 101, 242, 0.15);
}

.contact-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.contact-info-card h3 {
    margin-bottom: 0.8rem;
    color: var(--text-primary);
}

.contact-info-card p {
    color: var(--text-secondary);
}

.contact-info-card a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
}

.contact-info-card a:hover {
    color: var(--tertiary-color);
}

.feedback-section {
    background: var(--card-bg);
    padding: 3rem;
    border-radius: 15px;
    border: 1px solid var(--border-color);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
}

.feedback-section h3 {
    font-size: 1.8rem;
    margin-bottom: 2rem;
    color: var(--text-primary);
}

.feedback-form {
    display: grid;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group input,
.form-group textarea {
    background: #f8f9fa;
    border: 1.5px solid var(--border-color);
    color: var(--text-primary);
    padding: 1rem;
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    background: rgba(88, 101, 242, 0.03);
    box-shadow: 0 0 0 3px rgba(88, 101, 242, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-secondary);
}

/* ================================
   MODALS
   ================================ */

.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
    align-items: center;
    justify-content: center;
}

.modal.show {
    display: flex;
}

.modal-content {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 15px;
    width: 90%;
    max-width: 450px;
    border: 1px solid var(--border-color);
    position: relative;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

.close {
    position: absolute;
    right: 1.5rem;
    top: 1.5rem;
    font-size: 2rem;
    font-weight: 300;
    cursor: pointer;
    color: var(--text-secondary);
    transition: var(--transition);
}

.close:hover {
    color: var(--text-primary);
}

.login-container h2,
.profile-container h2 {
    text-align: center;
    margin-bottom: 2rem;
    color: var(--text-primary);
}

.login-tabs {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
}

.tab-button {
    flex: 1;
    padding: 0.8rem;
    background: transparent;
    border: 2px solid var(--border-color);
    color: var(--text-secondary);
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 600;
}

.tab-button.active {
    border-color: var(--primary-color);
    color: var(--primary-color);
    background: rgba(88, 101, 242, 0.08);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

#userProfileInfo {
    background: rgba(88, 101, 242, 0.05);
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

/* ================================
   FOOTER
   ================================ */

.footer {
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    border-top: 1px solid var(--border-color);
    padding: 3rem 0 1rem;
    margin-top: 6rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.8rem;
}

.footer-section a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
}

.footer-section a:hover {
    color: var(--primary-color);
    transform: translateX(5px);
}

.footer-social {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.footer-bottom {
    text-align: center;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
}

/* ================================
   RESPONSIVE DESIGN
   ================================ */

@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        display: none;
        position: absolute;
        top: 60px;
        left: 0;
        width: 100%;
        flex-direction: column;
        background: rgba(15, 15, 30, 0.95);
        padding: 2rem;
        gap: 1rem;
    }

    .nav-menu.active {
        display: flex;
    }

    .hero-title {
        font-size: 2.5rem;
    }

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

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

    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

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

    .section-title {
        font-size: 2rem;
    }

    .about-text h3 {
        font-size: 1.8rem;
    }

    .modal-content {
        width: 95%;
        max-width: 400px;
    }

    .nav-link {
        padding: 0;
    }

    .nav-link::after {
        display: none;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.8rem;
    }

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

    .hero-buttons {
        flex-direction: column;
        gap: 1rem;
    }

    .btn {
        width: 100%;
    }

    .contact-info-grid {
        grid-template-columns: 1fr;
    }

    .feedback-section {
        padding: 1.5rem;
    }
}

/* ================================
   ANIMATIONS
   ================================ */

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

/* AOS Custom Animations */
[data-aos="fade-up"] {
    opacity: 0;
    transform: translateY(30px);
}

[data-aos="fade-up"].aos-animate {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

[data-aos="fade-right"] {
    opacity: 0;
    transform: translateX(-30px);
}

[data-aos="fade-right"].aos-animate {
    opacity: 1;
    transform: translateX(0);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

[data-aos="fade-left"] {
    opacity: 0;
    transform: translateX(30px);
}

[data-aos="fade-left"].aos-animate {
    opacity: 1;
    transform: translateX(0);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

[data-aos="zoom-in"] {
    opacity: 0;
    transform: scale(0.9);
}

[data-aos="zoom-in"].aos-animate {
    opacity: 1;
    transform: scale(1);
    transition: opacity 0.8s ease, transform 0.8s ease;
}