:root {
    --bg-color: #0b0f19;
    --text-primary: #ffffff;
    --text-secondary: #94a3b8;
    --accent-color: #6366f1;
    --accent-gradient: linear-gradient(135deg, #6366f1 0%, #ec4899 100%);
    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-glow: rgba(99, 102, 241, 0.15);
    
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

html {
    scroll-behavior: smooth;
}

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

/* Typography */
h1, h2, h3, h4, .logo {
    font-family: var(--font-heading);
}

.text-gradient {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Mesh Gradient Background */
.mesh-gradient {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    overflow: hidden;
    background: #0b0f19;
}

.glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.5;
    animation: float 20s infinite ease-in-out alternate;
}

.glow-1 {
    width: 600px;
    height: 600px;
    background: rgba(99, 102, 241, 0.4);
    top: -20%;
    left: -10%;
}

.glow-2 {
    width: 500px;
    height: 500px;
    background: rgba(236, 72, 153, 0.3);
    bottom: -10%;
    right: -10%;
    animation-delay: -5s;
}

.glow-3 {
    width: 400px;
    height: 400px;
    background: rgba(45, 212, 191, 0.2);
    top: 40%;
    left: 50%;
    animation-delay: -10s;
}

@keyframes float {
    0% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(50px, 50px) scale(1.1); }
    100% { transform: translate(-20px, 80px) scale(0.9); }
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 1.5rem 0;
    z-index: 100;
    transition: var(--transition);
}

.navbar.scrolled {
    padding: 1rem 0;
    background: rgba(11, 15, 25, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--glass-border);
}

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

.logo {
    text-decoration: none;
    font-size: 1.5rem;
    letter-spacing: -0.5px;
}

.logo-bold {
    color: #fff;
    font-weight: 800;
}

.logo-light {
    color: var(--text-secondary);
    font-weight: 400;
    margin-left: 2px;
}

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

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    font-size: 0.95rem;
}

.nav-link:hover {
    color: #fff;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.75rem;
    border-radius: 100px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition);
    cursor: pointer;
}

.btn-primary {
    background: var(--text-primary);
    color: var(--bg-color);
    border: none;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(255, 255, 255, 0.2);
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-outline:hover {
    background: var(--text-primary);
    color: var(--bg-color);
}

/* Layout Utilities */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    padding: 8rem 0;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    font-weight: 800;
}

.text-center {
    text-align: center;
}

.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: 5rem;
    text-align: center;
}

.hero-content {
    max-width: 800px;
    padding: 0 2rem;
}

.badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    border-radius: 100px;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 2rem;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.hero-title {
    font-size: clamp(3rem, 6vw, 5rem);
    line-height: 1.1;
    margin-bottom: 1.5rem;
    font-weight: 800;
    letter-spacing: -1px;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* About Section */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    padding: 4rem;
}

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

.about-stats {
    display: flex;
    gap: 3rem;
    justify-content: center;
}

.stat-item {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 3.5rem;
    font-weight: 800;
    font-family: var(--font-heading);
    color: #fff;
    line-height: 1;
}

.stat-label {
    color: var(--text-secondary);
    margin-top: 0.5rem;
    font-weight: 500;
}

/* Applications Section */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2.5rem;
    margin-top: 3rem;
}

.portfolio-card {
    transition: var(--transition);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.portfolio-card:hover {
    transform: translateY(-10px);
    border-color: rgba(255, 255, 255, 0.2);
    box-shadow: 0 20px 40px rgba(0,0,0,0.4), 0 0 20px var(--glass-glow);
}

.card-image-wrapper {
    width: 100%;
    aspect-ratio: 4/3;
    overflow: hidden;
    position: relative;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(236, 72, 153, 0.1) 100%);
    border-bottom: 1px solid var(--glass-border);
}

.card-image {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 1.5rem;
    transition: transform 0.6s cubic-bezier(0.25, 1, 0.5, 1);
}

.portfolio-card:hover .card-image {
    transform: scale(1.1) rotate(-1deg);
}

.card-content {
    padding: 1.5rem;
    flex-grow: 1;
}

.card-category {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--accent-color);
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.card-title {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.card-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* Placeholder Styling */
.portfolio-placeholder .card-image-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.02) 100%);
}

.placeholder-content {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.placeholder-content p {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--text-secondary);
    font-weight: 600;
}

.pulse-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--accent-gradient);
    opacity: 0.5;
    position: relative;
    animation: pulse 2s infinite;
}

.pulse-icon.icon-alt {
    background: linear-gradient(135deg, #ec4899 0%, #6366f1 100%);
}

@keyframes pulse {
    0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(99, 102, 241, 0.4); }
    70% { transform: scale(1); box-shadow: 0 0 0 20px rgba(99, 102, 241, 0); }
    100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(99, 102, 241, 0); }
}

/* Process / Methodology Section */
.process-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
    margin-top: 3rem;
}

.process-card {
    padding: 3rem 2rem;
    border-radius: 24px;
    transition: var(--transition);
}

.process-card:hover {
    transform: translateY(-10px);
    border-color: rgba(255, 255, 255, 0.2);
    box-shadow: 0 15px 30px rgba(0,0,0,0.3), 0 0 20px var(--glass-glow);
}

.process-icon {
    font-size: 3rem;
    font-weight: 800;
    font-family: var(--font-heading);
    margin-bottom: 1.5rem;
    line-height: 1;
}

.process-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.process-card p {
    color: var(--text-secondary);
    font-size: 1rem;
}

/* Philosophy Section */
.philosophy-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem;
}

.lead-text {
    font-size: 1.5rem;
    font-family: var(--font-heading);
    color: #fff;
    font-weight: 600;
    margin-bottom: 2rem;
    line-height: 1.4;
}

.philosophy-content p:not(.lead-text) {
    color: var(--text-secondary);
    font-size: 1.1rem;
    line-height: 1.8;
}

/* CTA Section */
.cta-box {
    padding: 5rem 3rem;
    background: linear-gradient(135deg, rgba(255,255,255,0.05) 0%, rgba(99,102,241,0.05) 100%);
}

.cta-subtitle {
    color: var(--text-secondary);
    font-size: 1.2rem;
    margin-bottom: 2.5rem;
}

/* Footer */
.footer {
    border-top: 1px solid var(--glass-border);
    padding: 4rem 0 2rem;
    margin-top: 4rem;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 4rem;
}

.footer-tagline {
    color: var(--text-secondary);
    margin-top: 1rem;
    font-size: 0.95rem;
}

.footer-links {
    display: flex;
    gap: 2rem;
}

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

.footer-links a:hover {
    color: #fff;
}

.footer-bottom {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.85rem;
    border-top: 1px solid rgba(255,255,255,0.05);
    padding-top: 2rem;
}

/* Animations */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

.align-delay-1 { transition-delay: 0.1s; }
.align-delay-2 { transition-delay: 0.2s; }
.align-delay-3 { transition-delay: 0.3s; }
.align-delay-4 { transition-delay: 0.4s; }
.align-delay-5 { transition-delay: 0.5s; }

/* Responsive Grid */
@media (max-width: 992px) {
    .about-grid {
        grid-template-columns: 1fr;
        padding: 3rem;
        gap: 3rem;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .section {
        padding: 5rem 0;
    }
    
    .about-grid {
        padding: 2rem;
    }
    
    .about-stats {
        flex-direction: column;
        gap: 2rem;
        align-items: center;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 2rem;
        align-items: center;
        text-align: center;
    }
}