/* ===================================
   CSS VARIABLES - Dark Theme
   --Ink Black: #003554;, Deep Sea Blue: #03273C, CornFLower Ocean:#006DA4, Baltic Blue: #006484, Deepsea Blue: #003554, Yale blue: #004D74

   =================================== */
:root {
    /* Colors */
    /* --bg-primary: #0a0e27; */
    --bg-primary: #003554;
    /* --bg-secondary: #1a1d35; */
    --bg-secondary: #004D74;
    /* --bg-card: #1e2139; */
    --bg-card: #051720;
    --text-primary: #ffffff;
    --text-secondary: #a0a3bd;
    --accent-primary: #1B75D0;
    --accent-secondary: #2B7DE9;
    --accent-gradient: linear-gradient(135deg, #1B75D0 0%, #2B7DE9 100%);
    --section-header:#FFFFFF;
    
    --border-color: rgba(255, 255, 255, 0.1);

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;

    /* Typography */
    --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-size-base: 16px;
    --font-size-sm: 0.875rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.5rem;
    --font-size-2xl: 2rem;
    --font-size-3xl: 3rem;
    --font-size-4xl: 4rem;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);

    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 1rem;
    --radius-lg: 1.5rem;
}

/* ===================================
   RESET & BASE STYLES
   =================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: var(--font-size-base);
}

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

img {
    max-width: 100%;
    display: block;
}

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

ul {
    list-style: none;
}

/* ===================================
   CONTAINER & UTILITIES
   =================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section-padding {
    padding: var(--spacing-xl) 0;
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-label {
    display: inline-block;
    font-size: var(--font-size-xl);

    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--accent-primary);
    margin-bottom: var(--spacing-sm);
}

.section-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    background: var(--section-header);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-description {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 1rem 2rem;
    font-size: var(--font-size-base);
    font-weight: 600;
    border-radius: var(--radius-sm);
    cursor: pointer;
    border: none;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    transform: translate(-50%, -50%);
    transition: width var(--transition-slow), height var(--transition-slow);
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: var(--accent-gradient);
    color: var(--text-primary);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 212, 255, 0.3);
}

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

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

/* ===================================
   NAVIGATION
   =================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    /* background: rgba(10, 14, 39, 0.95); */
    background: #051720;
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1.5rem 0;
    border-bottom: 1px solid var(--border-color);
}

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

.logo {
    display: flex;
    align-items: center;
    border-radius: 4px;
    border:1px solid #ffffff;
}

.logo img {
    height: 50px;
    width: auto;
}

.nav-links {
    display: flex;
    gap: var(--spacing-md);
}

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

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-primary);
    transition: width var(--transition-base);
}

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

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

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

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

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: transparent;
    border: none;
    cursor: pointer;
}

.mobile-menu-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition-base);
}

/* ===================================
   HERO SECTION
   =================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding-top: 80px;
}

/* Animated Background */
.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
    z-index: 0;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.3;
    animation: float 20s ease-in-out infinite;
}

.orb-1 {
    width: 500px;
    height: 500px;
    background: var(--accent-primary);
    top: -200px;
    left: -100px;
    animation-delay: 0s;
}

.orb-2 {
    width: 400px;
    height: 400px;
    background: var(--accent-secondary);
    top: 50%;
    right: -100px;
    animation-delay: 5s;
}

.orb-3 {
    width: 300px;
    height: 300px;
    /* background: #06ffa5; */
    background: #006DA4;
    bottom: -100px;
    left: 50%;
    animation-delay: 10s;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    33% {
        transform: translate(50px, -50px) scale(1.1);
    }
    66% {
        transform: translate(-50px, 50px) scale(0.9);
    }
}

/* Hero Content */
.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    color: var(--accent-primary);
    font-weight: 500;
    display: block;
    margin-bottom: var(--spacing-sm);
}

.hero-title {
    font-size: clamp(3rem, 8vw, 5rem);
    font-weight: 900;
    margin-bottom: var(--spacing-sm);
    line-height: 1.1;
}

.hero-tagline {
    font-size: var(--font-size-xl);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
}

.social-links a {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.05);
    transition: all var(--transition-base);
}

.social-links a:hover {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    transform: translateY(-4px);
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-lg);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    animation: bounce 2s infinite;
}

.scroll-arrow {
    width: 24px;
    height: 24px;
    border-left: 2px solid var(--accent-primary);
    border-bottom: 2px solid var(--accent-primary);
    transform: rotate(-45deg);
}

@keyframes bounce {
    0%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    50% {
        transform: translateX(-50%) translateY(10px);
    }
}

/* ===================================
   ABOUT SECTION
   =================================== */
.about {
    background: var(--bg-secondary);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.image-wrapper {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    /* box-shadow: var(--shadow-lg); */
}

.image-wrapper::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--accent-gradient);
    opacity: 0.2;
    z-index: 1;
}

.image-wrapper img {
    width: 100%;
    height: auto;
    display: block;
}

.about-text h2 {
    text-align: left;
}

.about-text .section-label {
    margin-bottom: var(--spacing-sm);
}

.about-text p {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.stat-item {
    text-align: center;
    padding: var(--spacing-md);
    background: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.stat-number {
    display: block;
    font-size: var(--font-size-3xl);
    font-weight: 700;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    display: block;
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-top: var(--spacing-xs);
}

/* ===================================
   PROJECTS SECTION
   =================================== */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    max-width: 1200px;
    margin: 0 auto;
}

.project-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: all var(--transition-base);
}

.project-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-primary);
}

.project-image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16/10;
}

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

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

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-base);
}

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

.project-links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.project-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.75rem 1.5rem;
    background: var(--accent-gradient);
    border-radius: var(--radius-sm);
    font-weight: 600;
    transition: all var(--transition-base);
}

.project-link:hover {
    transform: translateX(4px);
    box-shadow: 0 4px 12px rgba(0, 212, 255, 0.4);
}

.project-content {
    padding: var(--spacing-md);
}

.project-title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
}

.project-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.tag {
    padding: 0.375rem 0.75rem;
    background: rgba(0, 212, 255, 0.1);
    color: var(--text-primary);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
    /* border: 1px solid rgba(0, 212, 255, 0.2); 1px solid rgb(39 123 227)*/
    border: 1px solid rgba(39 123 227);
}

/* ===================================
   SKILLS SECTION
   =================================== */
.skills {
    background: var(--bg-secondary);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
    max-width: 900px;
    margin: 0 auto;
}

.skill-card {
    padding: var(--spacing-lg);
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    text-align: center;
    transition: all var(--transition-base);
}

.skill-card:hover {
    transform: translateY(-8px);
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-lg);
}

.skill-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-gradient);
    border-radius: var(--radius-md);
    color: var(--text-primary);
}

.skill-card h3 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
}

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

/* ===================================
   FOOTER
   =================================== */
.footer {
    background: var(--bg-secondary);
    padding: var(--spacing-lg) 0;
    border-top: 1px solid var(--border-color);
}

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

.footer-content {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

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

.footer-ai-credit {
    font-size: var(--font-size-sm);
    color: var(--accent-primary);
    font-style: italic;
}

.footer-nda {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    opacity: 0.8;
}

.footer-links {
    display: flex;
    gap: var(--spacing-md);
}

.footer-links a {
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

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

/* ===================================
   ANIMATIONS
   =================================== */
.fade-in {
    opacity: 0;
    animation: fadeIn 1s ease forwards;
}

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

.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
}

.fade-in-up.visible {
    animation: fadeInUp 0.6s ease forwards;
}

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

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

/* Tablet */
@media (max-width: 968px) {
    :root {
        --font-size-3xl: 2.5rem;
        --font-size-4xl: 3rem;
    }

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

    .about-text h2,
    .about-text .section-label {
        text-align: center;
    }

    .about-stats {
        grid-template-columns: repeat(3, 1fr);
    }

    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .skills-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Mobile */
@media (max-width: 768px) {
    :root {
        --spacing-lg: 3rem;
        --spacing-xl: 4rem;
        --font-size-3xl: 2rem;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        background: rgba(5, 22, 32, 0.98);
        backdrop-filter: blur(10px);
        flex-direction: column;
        padding: 0;
        gap: 0;
        transform: translateX(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-base);
        border-bottom: 1px solid var(--border-color);
    }

    .nav-links.active {
        transform: translateX(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-links a {
        display: block;
        width: 100%;
        padding: 1.2rem 1.5rem;
        border-bottom: 1px solid var(--border-color);
        text-align: left;
        font-size: 1.1rem;
        line-height: 1.8;
    }

    .nav-links a:last-child {
        border-bottom: none;
    }

    .hero-cta {
        flex-direction: column;
        align-items: center;
    }

    .hero-cta .btn {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }

    .about-stats {
        grid-template-columns: 1fr;
    }

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

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

    .footer .container {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }

    .footer-content {
        align-items: center;
    }

    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
    }

    .section-title {
        font-size: var(--font-size-2xl);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }

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

    .hero-tagline {
        font-size: var(--font-size-base);
    }

    .social-links a {
        width: 40px;
        height: 40px;
    }

    .project-links {
        flex-direction: column;
    }
}