/* Reset and Base Styles */
:root {
    /* Light theme colors */
    --bg-primary: #ffffff;
    --bg-secondary: #BBE1FA;
    --text-primary: #1B262C;
    --text-secondary: #0F4C75;
    --text-muted: #3282B8;
    --accent-primary: #3282B8;
    --accent-secondary: #0F4C75;
    --accent-dark: #1B262C;
    --card-bg: #ffffff;
    --border-color: #BBE1FA;
    --shadow-light: rgba(27, 38, 44, 0.1);
    --shadow-medium: rgba(27, 38, 44, 0.15);
    --primary: #3282B8;
    
    /* Spacing variables */
    --space-sm: 0.5rem;
    --space-xl: 2rem;
}

[data-theme="dark"] {
    /* Dark theme colors */
    --bg-primary: #1B262C;
    --bg-secondary: #0F4C75;
    --text-primary: #BBE1FA;
    --text-secondary: #ffffff;
    --text-muted: #3282B8;
    --accent-primary: #BBE1FA;
    --accent-secondary: #3282B8;
    --accent-dark: #0F4C75;
    --card-bg: #0F4C75;
    --border-color: #3282B8;
    --shadow-light: rgba(0, 0, 0, 0.3);
    --shadow-medium: rgba(0, 0, 0, 0.4);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    overflow-x: hidden;
    background-color: var(--bg-primary);
    transition: background-color 0.3s ease, color 0.3s ease;
}

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: all 0.3s ease;
}

[data-theme="dark"] .navbar {
    background: rgba(27, 38, 44, 0.95);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 2px 20px var(--shadow-light);
}

[data-theme="dark"] .navbar.scrolled {
    background: rgba(27, 38, 44, 0.98);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.nav-logo .logo-text {
    font-size: 28px;
    font-weight: 700;
    color: var(--accent-primary);
    letter-spacing: -1px;
}

.nav-logo .logo-image {
    height: 40px;
    width: auto;
    max-width: 120px;
    object-fit: contain;
    transition: all 0.3s ease;
}

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

.nav-menu {
    display: flex;
    list-style: none;
    gap: 40px;
}

.nav-link {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    position: relative;
    transition: color 0.3s ease;
}

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

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

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

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

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

.theme-toggle {
    background: none;
    border: 2px solid var(--accent-primary);
    border-radius: 50%;
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    color: var(--accent-primary);
}

.theme-toggle:hover {
    background: var(--accent-primary);
    color: var(--bg-primary);
    transform: rotate(180deg);
}

.theme-toggle i {
    font-size: 1.2rem;
}

.github-btn {
    background: none;
    /* border: 2px solid var(--accent-primary); */
    border-radius: .5rem;
    padding: 8px;
    /* width: 45px;
    height: 45px; */
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    color: var(--accent-primary);
    text-decoration: none;
}

.github-btn:hover {
    background: var(--accent-primary);
    color: var(--bg-primary);
    /* transform: scale(1.1); */
}

.github-btn i {
    margin-left: 5px;
    font-size: 1.2rem;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
    z-index: 1001;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    transition: all 0.3s ease;
    border-radius: 2px;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    background: linear-gradient(135deg, #1B262C 0%, #0F4C75 50%, #3282B8 100%);
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(27, 38, 44, 0.9) 0%, rgba(15, 76, 117, 0.9) 50%, rgba(50, 130, 184, 0.9) 100%);
    z-index: 1;
}

.hero-container {
    position: relative;
    z-index: 2;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-text {
    color: white;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 20px;
}

.title-line {
    /* font-size: 3rem; */
    display: block;
    opacity: 0;
    transform: translateY(30px);
    animation: slideUp 0.8s ease forwards;
}

.title-line:nth-child(1) {
    animation-delay: 0.2s;
}

.title-line:nth-child(2) {
    animation-delay: 0.4s;
}

.title-line:nth-child(3) {
    animation-delay: 0.6s;
}


#dynamic-role {
    font-size: 3rem;
}

.cursor {
    font-size: 3rem;
    display: inline-block;
    margin-left: 3px;
    animation: blink 1s infinite;
    color: var(--accent-primary);
}

@keyframes blink {
    0%, 50% {
        opacity: 1;
    }
    51%, 100% {
        opacity: 0;
    }
}

.highlight {
    background: linear-gradient(45deg, #3282B8, #BBE1FA);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.2rem;
    margin-bottom: 40px;
    opacity: 0;
    animation: fadeIn 0.8s ease 0.8s forwards;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    opacity: 0;
    animation: fadeIn 0.8s ease 1s forwards;
}

.btn {
    padding: 15px 30px;
    border: none;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    display: inline-block;
}

.btn i {
    margin-left: 3px;
    /* font-size: 1rem; */
}

.btn-primary {
    background: #1E83C6;
    /* background: #0099FF; */
    color: white;
}

.btn-primary:hover {
    background: #0099FF;
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(50, 130, 184, 0.4);
}

.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
}

.btn-secondary:hover {
    background: #BBE1FA;
    color: #1B262C;
    transform: translateY(-2px);
}

/* Hero Visual */
.hero-visual {
    position: relative;
    height: 400px;
}

.code-animation {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 300px;
    height: 200px;
    background: rgba(0, 0, 0, 0.1);
    border-radius: 10px;
    padding: 20px;
    backdrop-filter: blur(10px);
}

.code-line {
    height: 20px;
    background: linear-gradient(90deg, rgba(255, 255, 255, 0.8), rgba(255, 255, 255, 0.4));
    margin-bottom: 10px;
    border-radius: 3px;
    opacity: 0;
    animation: codeType 1s ease forwards;
}

.code-line:nth-child(1) {
    width: 80%;
    animation-delay: 1.2s;
}

.code-line:nth-child(2) {
    width: 60%;
    animation-delay: 1.4s;
}

.code-line:nth-child(3) {
    width: 90%;
    animation-delay: 1.6s;
}

.code-line:nth-child(4) {
    width: 70%;
    animation-delay: 1.8s;
}

.code-line:nth-child(5) {
    width: 85%;
    animation-delay: 2s;
}

.floating-elements {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.element {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    animation: float 6s ease-in-out infinite;
}

.element-1 {
    width: 80px;
    height: 80px;
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.element-2 {
    width: 60px;
    height: 60px;
    top: 60%;
    right: 20%;
    animation-delay: 2s;
}

.element-3 {
    width: 100px;
    height: 100px;
    bottom: 20%;
    left: 60%;
    animation-delay: 4s;
}

.scroll-indicator {
    position: absolute;
    bottom: var(--space-xl);
    left: 50%;
    transform: translateX(-50%) translateY(170%) !important;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    color: var(--text-muted);
    font-size: 0.875rem;
    opacity: 0;
    animation: fadeIn 0.8s ease 2.5s forwards;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, transparent, var(--primary), transparent);
    animation: scroll-line 2s ease-in-out infinite;
}

@keyframes scroll-line {
    0%,
    100% {
        opacity: 0.3;
    }
    50% {
        opacity: 1;
    }
}

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

.section-header {
    text-align: center;
    margin-bottom: 80px;
}

.section-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--text-muted);
}

/* About Section */
.about {
    background: var(--bg-primary);
    position: relative;
    z-index: 10;
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text p {
    font-size: 1.1rem;
    margin-bottom: 20px;
    color: var(--text-secondary);
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-primary);
    margin-bottom: 5px;
    display: block;
    overflow: visible;
    white-space: nowrap;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.2;
    text-rendering: optimizeLegibility;
}

.plus-sign {
    display: inline;
    font-weight: 700;
    color: var(--accent-primary);
    font-size: inherit;
    vertical-align: baseline;
}

.stat-label {
    color: var(--text-muted);
    font-weight: 500;
}

.about-education {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.education-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
}

.education-icon {
    width: 50px;
    height: 50px;
    background: var(--accent-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
}

.education-header h3 {
    font-size: 1.8rem;
    color: var(--text-primary);
    margin: 0;
}

.education-item {
    background: var(--bg-secondary);
    padding: 25px;
    border-radius: 15px;
    border-left: 4px solid var(--accent-primary);
}

.education-item h4 {
    font-size: 1.3rem;
    color: var(--text-primary);
    margin: 0 0 8px 0;
}

.education-item p {
    color: var(--text-secondary);
    margin: 0 0 10px 0;
    font-size: 1.1rem;
}

.education-period {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--accent-primary);
    font-weight: 500;
    font-size: 0.95rem;
}

.education-period::before {
    content: '';
    width: 8px;
    height: 8px;
    background: var(--accent-primary);
    border-radius: 50%;
}

.about-text h3 {
    font-size: 1.8rem;
    color: var(--text-primary);
    margin-bottom: 15px;
}

/* Skills Section */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.skill-category h3 {
    font-size: 1.5rem;
    margin-bottom: 30px;
    color: var(--text-primary);
}

.skill-items {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.skill-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 20px;
    background: var(--card-bg);
    border-radius: 10px;
    box-shadow: 0 5px 15px var(--shadow-light);
    transition: transform 0.3s ease;
}

.skill-item:hover {
    transform: translateY(-5px);
}

.skill-item i {
    font-size: 2rem;
    color: var(--accent-primary);
}

.skill-item span {
    font-weight: 600;
    color: var(--text-primary);
}

/* Projects Section */
.projects {
    background: var(--bg-secondary);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.project-card {
    background: var(--card-bg);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px var(--shadow-light);
    transition: transform 0.3s ease;
}

.project-card:hover {
    transform: translateY(-10px);
}

.project-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.project-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #0F4C75, #3282B8);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 3rem;
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

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

.project-links {
    display: flex;
    gap: 20px;
}

.project-link {
    width: 50px;
    height: 50px;
    background: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #333;
    text-decoration: none;
    transition: transform 0.3s ease;
}

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

.project-content {
    padding: 30px;
}

.project-content h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.project-content p {
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.6;
}

.project-tech {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.project-tech span {
    padding: 5px 15px;
    background: #BBE1FA;
    color: #1B262C;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
}

/* Contact Section */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

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

.contact-method {
    display: flex;
    align-items: center;
    gap: 15px;
}

.contact-method i {
    font-size: 1.5rem;
    color: var(--accent-primary);
    width: 30px;
}

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

.contact-method {
    display: flex;
    align-items: center;
    gap: 15px;
    color: var(--text-primary);
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    font-family: inherit;
    font-size: 1rem;
    transition: border-color 0.3s ease;
    background: var(--card-bg);
    color: var(--text-primary);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
}

/* Footer */
.footer {
    background: #1B262C;
    color: white;
    padding: 40px 0;
}

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

.footer-social {
    display: flex;
    gap: 20px;
}

.social-link {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-link:hover {
    background: #3282B8;
    transform: translateY(-2px);
}

/* Animations */
@keyframes slideUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    to {
        opacity: 1;
    }
}

@keyframes codeType {
    to {
        opacity: 1;
        width: 100%;
    }
}

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

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 80px;
        flex-direction: column;
        background-color: var(--bg-primary);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px var(--shadow-light);
        padding: 40px 0;
        border-top: 1px solid var(--border-color);
        z-index: 999;
        gap: 20px;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-link {
        display: block;
        padding: 15px 0;
        font-size: 1.1rem;
        border-bottom: 1px solid var(--border-color);
        margin: 0 20px;
    }
    
    .nav-link:last-child {
        border-bottom: none;
    }
    
    .hamburger {
        display: flex;
        z-index: 1001;
    }
    
    .hamburger span {
        background: var(--text-primary);
    }
    
    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active span:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }
    
    .hamburger.active span:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }
    
    .nav-actions {
        gap: 15px;
    }
    
    .theme-toggle {
        width: 40px;
        height: 40px;
    }
    
    .nav-logo .logo-image {
        height: 40px;
        max-width: 100px;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .about {
        margin-top: 30rem;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .about-stats {
        justify-content: center;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
    }
    
    .skill-items {
        grid-template-columns: 1fr;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
    
    .section-title {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .btn {
        padding: 12px 24px;
        font-size: 0.9rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
}

/* Notification System */
.notification {
    position: fixed;
    top: -100px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--accent-primary), #4338ca);
    color: white;
    padding: 15px 25px;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    z-index: 10000;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: all 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.notification.show {
    top: 20px;
}

.notification.success {
    background: linear-gradient(135deg, #10b981, #059669);
}

.notification.error {
    background: linear-gradient(135deg, #ef4444, #dc2626);
}

.notification i {
    font-size: 18px;
}

.notification .close-btn {
    background: none;
    border: none;
    color: white;
    font-size: 18px;
    cursor: pointer;
    margin-left: 10px;
    opacity: 0.7;
    transition: opacity 0.3s ease;
}

.notification .close-btn:hover {
    opacity: 1;
}

/* Mobile responsive */
@media (max-width: 768px) {
    .notification {
        left: 10px;
        right: 10px;
        transform: none;
        padding: 12px 20px;
        font-size: 14px;
    }
    
    .notification.show {
        top: 10px;
    }
}