/* ===== CSS Variables & Design Tokens ===== */
:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-card: #1a1a25;
    --bg-card-hover: #22222f;
    --text-primary: #ffffff;
    --text-secondary: #a0a0b0;
    --text-muted: #6b6b7b;
    --accent-primary: #6366f1;
    --accent-secondary: #8b5cf6;
    --accent-tertiary: #ec4899;
    --gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #ec4899 100%);
    --gradient-glow: linear-gradient(135deg, rgba(99, 102, 241, 0.3) 0%, rgba(139, 92, 246, 0.3) 50%, rgba(236, 72, 153, 0.3) 100%);
    --border-color: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(255, 255, 255, 0.15);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.3);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* ===== Reset & Base ===== */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

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

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

img {
    max-width: 100%;
    height: auto;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

ul {
    list-style: none;
}

/* ===== Background Animation ===== */
.bg-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
    overflow: hidden;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
    animation: float 20s ease-in-out infinite;
}

.orb-1 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.4) 0%, transparent 70%);
    top: -200px;
    left: -200px;
    animation-delay: 0s;
}

.orb-2 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.3) 0%, transparent 70%);
    top: 50%;
    right: -150px;
    animation-delay: -7s;
}

.orb-3 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(236, 72, 153, 0.3) 0%, transparent 70%);
    bottom: -100px;
    left: 30%;
    animation-delay: -14s;
}

@keyframes float {

    0%,
    100% {
        transform: translate(0, 0) scale(1);
    }

    33% {
        transform: translate(30px, -30px) scale(1.05);
    }

    66% {
        transform: translate(-20px, 20px) scale(0.95);
    }
}

/* ===== Container ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== Navigation ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    transition: all var(--transition-base);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

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

.nav-menu {
    display: flex;
    gap: 32px;
}

.nav-link {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: color var(--transition-fast);
    position: relative;
}

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

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

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

.nav-cta {
    padding: 10px 24px;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: 0.9rem;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: all var(--transition-fast);
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: 1rem;
    transition: all var(--transition-base);
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow), var(--shadow-lg);
}

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

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--accent-primary);
}

/* ===== Gradient Text ===== */
.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===== Section Styling ===== */
section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    display: inline-block;
    padding: 8px 16px;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: var(--radius-lg);
    color: var(--accent-primary);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 20px;
}

.section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    margin-bottom: 16px;
}

.section-description {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

/* ===== Hero Section ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 100px;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(34, 197, 94, 0.1);
    border: 1px solid rgba(34, 197, 94, 0.3);
    border-radius: var(--radius-lg);
    color: #22c55e;
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 24px;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: #22c55e;
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
        transform: scale(1);
    }

    50% {
        opacity: 0.5;
        transform: scale(1.2);
    }
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 8px;
}

.hero-subtitle {
    font-size: clamp(1.2rem, 3vw, 1.5rem);
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: 20px;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 500px;
    margin-bottom: 32px;
}

.hero-stats {
    display: flex;
    gap: 40px;
    margin-bottom: 40px;
}

.stat {
    text-align: left;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.hero-cta {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

/* Code Window */
.code-window {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.code-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.02);
    border-bottom: 1px solid var(--border-color);
}

.code-dots {
    display: flex;
    gap: 8px;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.dot.red {
    background: #ff5f56;
}

.dot.yellow {
    background: #ffbd2e;
}

.dot.green {
    background: #27c93f;
}

.code-title {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

.code-body {
    padding: 24px;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    line-height: 1.8;
}

.code-keyword {
    color: #c792ea;
}

.code-variable {
    color: #82aaff;
}

.code-property {
    color: #f78c6c;
}

.code-string {
    color: #c3e88d;
}

.code-boolean {
    color: #ff5370;
}

.code-method {
    color: #82aaff;
}

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

.about-content {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 60px;
    max-width: 900px;
    margin: 0 auto;
    align-items: start;
}

.about-image {
    position: relative;
}

.profile-img {
    width: 280px;
    height: 280px;
    object-fit: cover;
    border-radius: var(--radius-lg);
    border: 3px solid transparent;
    background: linear-gradient(var(--bg-card), var(--bg-card)) padding-box,
        var(--gradient-primary) border-box;
    box-shadow: var(--shadow-lg);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.profile-img:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-glow), var(--shadow-lg);
}

.about-intro {
    font-size: 1.25rem;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.about-text p {
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.about-highlights {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 32px;
}

.highlight {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 20px;
    background: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.highlight-icon {
    font-size: 1.5rem;
}

.highlight-text strong {
    display: block;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.highlight-text span {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* ===== Projects Section ===== */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 24px;
}

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

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

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

.project-preview {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
}

.brainquill-preview {
    background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
}

.codesmith-preview {
    background: linear-gradient(135deg, #059669 0%, #0891b2 100%);
}

.evfinder-preview {
    background: linear-gradient(135deg, #0ea5e9 0%, #22c55e 100%);
}

.smartit-preview {
    background: linear-gradient(135deg, #f97316 0%, #ef4444 100%);
}

.evlife-preview {
    background: linear-gradient(135deg, #22c55e 0%, #10b981 100%);
}

.portal-preview {
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
}

.project-content {
    padding: 24px;
}

.project-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 12px;
}

.tag {
    padding: 4px 12px;
    background: rgba(99, 102, 241, 0.1);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--accent-primary);
}

.project-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.project-description {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 16px;
}

.project-cta {
    color: var(--accent-primary);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    transition: gap var(--transition-fast);
}

.project-cta:hover {
    gap: 8px;
}

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

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 16px;
    max-width: 800px;
    margin: 0 auto;
}

.skill-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding: 24px;
    background: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    transition: all var(--transition-base);
}

.skill-item:hover {
    transform: translateY(-4px);
    border-color: var(--accent-primary);
}

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

.skill-item span:last-child {
    font-weight: 500;
    color: var(--text-secondary);
}

/* ===== Contact Section ===== */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
    max-width: 1000px;
    margin: 0 auto;
}

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

.info-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.info-icon {
    font-size: 1.5rem;
}

.info-details h4 {
    font-weight: 600;
    margin-bottom: 4px;
}

.info-details span,
.info-details a {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

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

.contact-form {
    background: var(--bg-card);
    padding: 32px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 1rem;
    transition: border-color var(--transition-fast);
}

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

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* ===== Contact CTA Box ===== */
.contact-cta-box {
    background: var(--bg-card);
    padding: 48px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    text-align: center;
    max-width: 500px;
}

.contact-cta-box h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.contact-cta-box>p {
    color: var(--text-secondary);
    margin-bottom: 24px;
    line-height: 1.6;
}

.contact-cta-box .btn-large {
    padding: 18px 36px;
    font-size: 1.1rem;
    display: inline-flex;
    gap: 10px;
}

.contact-note {
    margin-top: 20px;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.contact-note a {
    color: var(--accent-primary);
}

.contact-note a:hover {
    text-decoration: underline;
}

/* ===== Footer ===== */
.footer {
    padding: 40px 0;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

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

.footer-links {
    display: flex;
    gap: 24px;
}

.footer-links a {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

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

/* ===== Responsive ===== */
@media (max-width: 968px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-description {
        margin: 0 auto 32px;
    }

    .hero-stats {
        justify-content: center;
    }

    .hero-cta {
        justify-content: center;
    }

    .hero-visual {
        display: none;
    }

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

    .about-image {
        display: flex;
        justify-content: center;
    }

    .profile-img {
        width: 200px;
        height: 200px;
    }

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

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

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }

    .nav-cta {
        display: none;
    }

    .nav-toggle {
        display: flex;
    }

    .hero-stats {
        flex-direction: column;
        gap: 20px;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

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

    .footer-content {
        flex-direction: column;
        text-align: center;
    }
}