/* ==========================================
   NA CODERS TECH - MODERN DESIGN SYSTEM
   ========================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Space+Grotesk:wght@400;500;600;700&display=swap');

:root {
    /* Color Palette - Vibrant & Modern */
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --accent-gradient: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --success-gradient: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
    --warm-gradient: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
    
    /* Background Colors */
    --bg-primary: #0a0e27;
    --bg-secondary: #0f1629;
    --bg-tertiary: #1a1f3a;
    
    /* Glass Effects */
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
    
    /* Text Colors */
    --text-primary: #ffffff;
    --text-secondary: #b4b9d0;
    --text-muted: #7a7f9d;
    
    /* Accent Colors */
    --accent-purple: #667eea;
    --accent-pink: #f093fb;
    --accent-cyan: #00f2fe;
    --accent-green: #43e97b;
    
    /* Spacing & Layout */
    --container-max: 1200px;
    --container-padding: 2rem;
    --section-padding: 6rem 0;
    --border-radius: 20px;
    --border-radius-sm: 12px;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-display: 'Space Grotesk', sans-serif;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* ==========================================
   RESET & BASE STYLES
   ========================================== */

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

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    font-family: var(--font-primary);
    background: var(--bg-primary);
    background-image: 
        radial-gradient(at 0% 0%, rgba(102, 126, 234, 0.1) 0px, transparent 50%),
        radial-gradient(at 100% 0%, rgba(240, 147, 251, 0.1) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(0, 242, 254, 0.1) 0px, transparent 50%),
        radial-gradient(at 0% 100%, rgba(67, 233, 123, 0.1) 0px, transparent 50%);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

/* ==========================================
   TYPOGRAPHY
   ========================================== */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    background: linear-gradient(135deg, #ffffff 0%, #b4b9d0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    color: var(--text-primary);
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
    color: var(--text-primary);
}

p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

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

a:hover {
    color: var(--accent-purple);
}

/* ==========================================
   CONTAINER & LAYOUT
   ========================================== */

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.narrow {
    max-width: 900px;
}

.section {
    padding: var(--section-padding);
    position: relative;
}

.section.alt {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.02) 0%, transparent 100%);
}

/* ==========================================
   HEADER & NAVIGATION
   ========================================== */

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 14, 39, 0.8);
    backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid var(--glass-border);
    transition: var(--transition-normal);
}

.site-header::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--primary-gradient);
    opacity: 0;
    transition: var(--transition-normal);
}

.site-header:hover::before {
    opacity: 0.05;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem var(--container-padding);
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition-fast);
    position: relative;
    z-index: 1;
}

.brand svg {
    filter: drop-shadow(0 0 10px rgba(102, 126, 234, 0.5));
    transition: var(--transition-normal);
}

.brand:hover svg {
    filter: drop-shadow(0 0 20px rgba(102, 126, 234, 0.8));
    transform: rotate(-5deg) scale(1.05);
}

.nav {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav a {
    color: var(--text-secondary);
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius-sm);
    position: relative;
    overflow: hidden;
    transition: var(--transition-fast);
}

.nav a::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--primary-gradient);
    opacity: 0;
    transition: var(--transition-normal);
}

.nav a:hover {
    color: var(--text-primary);
    transform: translateY(-2px);
}

.nav a:hover::before {
    opacity: 0.1;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    position: relative;
    z-index: 1;
}

.nav-toggle span {
    display: block;
    width: 25px;
    height: 2px;
    background: var(--text-primary);
    margin: 5px 0;
    border-radius: 2px;
    transition: var(--transition-normal);
}

/* ==========================================
   BUTTONS
   ========================================== */

.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    border-radius: var(--border-radius-sm);
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: inherit;
    opacity: 0;
    transition: var(--transition-normal);
    z-index: -1;
}

.btn:hover::before {
    opacity: 0.8;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.btn.primary {
    background: var(--primary-gradient);
    color: var(--text-primary);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.btn.primary:hover {
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.6);
}

.btn.ghost {
    background: transparent;
    color: var(--text-secondary);
    border: 2px solid var(--glass-border);
    backdrop-filter: blur(10px);
}

.btn.ghost:hover {
    background: var(--glass-bg);
    border-color: var(--accent-purple);
    color: var(--text-primary);
}

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

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 5rem;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(102, 126, 234, 0.15) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 20s ease-in-out infinite;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(240, 147, 251, 0.15) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 15s ease-in-out infinite reverse;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    33% { transform: translate(30px, -30px) rotate(120deg); }
    66% { transform: translate(-20px, 20px) rotate(240deg); }
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content {
    animation: fadeInUp 1s ease-out;
}

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

.hero h1 {
    margin-bottom: 1.5rem;
    animation: fadeInUp 1s ease-out 0.2s both;
}

.lead {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.8;
    animation: fadeInUp 1s ease-out 0.4s both;
}

.hero-ctas {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 2rem;
    animation: fadeInUp 1s ease-out 0.6s both;
}

.inline-features {
    display: flex;
    gap: 1.5rem;
    list-style: none;
    color: var(--text-muted);
    font-size: 0.9rem;
    animation: fadeInUp 1s ease-out 0.8s both;
}

.inline-features li {
    position: relative;
    padding-left: 1.5rem;
}

.inline-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent-green);
    font-weight: 700;
}

.hero-art {
    position: relative;
    animation: fadeInUp 1s ease-out 0.4s both;
}

.illustration {
    width: 100%;
    height: auto;
    filter: drop-shadow(0 20px 60px rgba(102, 126, 234, 0.3));
    animation: floatSlow 6s ease-in-out infinite;
}

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

/* ==========================================
   CARDS & COMPONENTS
   ========================================== */

.card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius);
    padding: 2rem;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--primary-gradient);
    opacity: 0;
    transition: var(--transition-normal);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--glass-shadow);
    border-color: rgba(102, 126, 234, 0.3);
}

.card:hover::before {
    opacity: 0.05;
}

.card h3 {
    position: relative;
    z-index: 1;
    margin-bottom: 0.75rem;
}

.card p {
    position: relative;
    z-index: 1;
}

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

.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

/* ==========================================
   SERVICES SECTION
   ========================================== */

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.service {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius);
    padding: 2.5rem;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.service::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--primary-gradient);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition-normal);
}

.service:hover::before {
    transform: scaleX(1);
}

.service:hover {
    transform: translateY(-8px);
    box-shadow: var(--glass-shadow);
    border-color: rgba(102, 126, 234, 0.3);
}

.svc-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    display: inline-block;
    transition: var(--transition-normal);
}

.service:hover .svc-icon {
    transform: scale(1.1) rotate(-5deg);
}

.service h3 {
    margin-bottom: 1rem;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ==========================================
   PORTFOLIO SECTION
   ========================================== */

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.project-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius);
    padding: 0;
    overflow: hidden;
    transition: var(--transition-normal);
    cursor: pointer;
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--glass-shadow);
    border-color: rgba(102, 126, 234, 0.3);
}

.project-thumb {
    height: 200px;
    background: var(--primary-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    position: relative;
    overflow: hidden;
}

.project-thumb::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, transparent 0%, rgba(0, 0, 0, 0.3) 100%);
}

.project-card h4 {
    padding: 1.5rem 1.5rem 0.5rem;
    margin: 0;
}

.project-card p {
    padding: 0 1.5rem 1.5rem;
    margin: 0;
}

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

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 3rem;
    margin-top: 3rem;
    align-items: start;
}

.contact-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius);
    padding: 2.5rem;
}

.contact-card h3 {
    margin-bottom: 1.5rem;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.contact-card p {
    margin-bottom: 1rem;
}

.contact-card strong {
    color: var(--text-primary);
}

.small-note {
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-top: 1.5rem;
    font-style: italic;
}

.contact-form {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius);
    padding: 2.5rem;
}

.contact-form label {
    display: block;
    margin-bottom: 1.5rem;
}

.contact-form label span {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    font-weight: 500;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 0.875rem 1.25rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-sm);
    color: var(--text-primary);
    font-family: var(--font-primary);
    font-size: 1rem;
    transition: var(--transition-fast);
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--accent-purple);
    background: rgba(255, 255, 255, 0.05);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.contact-form textarea {
    resize: vertical;
    min-height: 150px;
}

.form-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

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

.site-footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--glass-border);
    padding: 2rem 0;
    margin-top: 4rem;
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-inner > div:first-child {
    color: var(--text-muted);
}

.socials {
    display: flex;
    gap: 1.5rem;
}

.socials a {
    color: var(--text-secondary);
    font-weight: 500;
    transition: var(--transition-fast);
    position: relative;
}

.socials a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--primary-gradient);
    transform: scaleX(0);
    transition: var(--transition-normal);
}

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

.socials a:hover::after {
    transform: scaleX(1);
}

/* ==========================================
   UTILITY CLASSES
   ========================================== */

.sub {
    color: var(--text-secondary);
    font-size: 1.125rem;
    margin-bottom: 2rem;
}

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

@keyframes gradient-shift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.animate-gradient {
    background-size: 200% 200%;
    animation: gradient-shift 3s ease infinite;
}

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

@media (max-width: 1024px) {
    :root {
        --container-padding: 1.5rem;
        --section-padding: 4rem 0;
    }
    
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .hero-art {
        order: -1;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    :root {
        --container-padding: 1rem;
        --section-padding: 3rem 0;
    }
    
    .nav {
        display: none;
        position: fixed;
        top: 80px;
        right: 1rem;
        flex-direction: column;
        background: rgba(10, 14, 39, 0.95);
        backdrop-filter: blur(20px);
        border: 1px solid var(--glass-border);
        border-radius: var(--border-radius);
        padding: 1.5rem;
        gap: 0.5rem;
        box-shadow: var(--glass-shadow);
    }
    
    .nav.active {
        display: flex;
    }
    
    .nav-toggle {
        display: block;
    }
    
    .hero {
        min-height: auto;
        padding-top: 6rem;
    }
    
    .hero-ctas {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        text-align: center;
    }
    
    .inline-features {
        flex-direction: column;
        gap: 0.75rem;
    }
    
    .about-grid,
    .services-grid,
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-inner {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.75rem;
    }
    
    .lead {
        font-size: 1rem;
    }
    
    .card,
    .service,
    .contact-card,
    .contact-form {
        padding: 1.5rem;
    }
}

/* ==========================================
   ACCESSIBILITY
   ========================================== */

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus visible for keyboard navigation */
:focus-visible {
    outline: 2px solid var(--accent-purple);
    outline-offset: 4px;
}

/* ==========================================
   PRINT STYLES
   ========================================== */

@media print {
    .site-header,
    .nav-toggle,
    .hero-art,
    .site-footer {
        display: none;
    }
    
    body {
        background: white;
        color: black;
    }
}