/* 
 * Design System & Base Variables 
 */
:root {
    /* Colors */
    --bg-dark: #050914;
    --bg-card: rgba(13, 18, 30, 0.7);
    --bg-card-hover: rgba(20, 28, 48, 0.8);
    
    --neon-blue: #00e1ff;
    --neon-blue-glow: rgba(0, 225, 255, 0.4);
    --neon-blue-dim: rgba(0, 225, 255, 0.1);
    
    --text-main: #ffffff;
    --text-muted: #94a3b8;
    
    --accent-red: #ff4757;
    
    /* Typography */
    --font-sans: 'Inter', sans-serif;
    --font-heading: 'Outfit', sans-serif;
    
    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

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

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

.text-center { text-align: center; }
.mx-auto { margin-left: auto; margin-right: auto; }
.max-w-lg { max-width: 800px; }

.text-highlight {
    color: var(--neon-blue);
    text-shadow: 0 0 20px var(--neon-blue-glow);
}

.section {
    padding: 100px 0;
}

.section-title {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 16px;
    line-height: 1.2;
}

.section-desc {
    color: var(--text-muted);
    font-size: 1.125rem;
    margin-bottom: 40px;
}

/* 
 * Buttons & Interactions 
 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    font-family: var(--font-heading);
    letter-spacing: 0.5px;
}

.btn-primary {
    background: var(--neon-blue);
    color: var(--bg-dark);
    border: none;
    box-shadow: 0 0 20px var(--neon-blue-glow);
}

.btn-primary:hover {
    box-shadow: 0 0 30px var(--neon-blue), inset 0 0 10px rgba(255,255,255,0.5);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: var(--neon-blue);
    border: 1px solid var(--neon-blue);
}

.btn-outline:hover {
    background: var(--neon-blue-dim);
    box-shadow: 0 0 15px var(--neon-blue-glow);
}

.btn-large {
    padding: 18px 36px;
    font-size: 1.125rem;
}

.pulse-animation {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 var(--neon-blue-glow); }
    70% { box-shadow: 0 0 0 15px rgba(0, 225, 255, 0); }
    100% { box-shadow: 0 0 0 0 rgba(0, 225, 255, 0); }
}

/* Glassmorphism */
.glass-card {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 16px;
    padding: 32px;
}

/* 
 * Navigation 
 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 100;
    background: rgba(5, 9, 20, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding: 16px 0;
}

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

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--text-main);
    text-decoration: none;
    letter-spacing: 1px;
}

.logo span {
    color: var(--neon-blue);
}

/* 
 * Hero Section 
 */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('assets/hero_bg.png');
    background-size: cover;
    background-position: center;
    opacity: 0.3;
    z-index: 1;
    mask-image: linear-gradient(to bottom, black 50%, transparent 100%);
    -webkit-mask-image: linear-gradient(to bottom, black 50%, transparent 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    text-align: center;
    margin: 0 auto;
}

.badge {
    display: inline-block;
    padding: 6px 16px;
    background: var(--neon-blue-dim);
    border: 1px solid var(--neon-blue);
    color: var(--neon-blue);
    border-radius: 100px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 24px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 4rem;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 24px;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-cta-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.cta-microtext {
    font-size: 0.875rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 6px;
}

.cta-microtext svg {
    width: 14px;
    height: 14px;
    color: var(--neon-blue);
}

/* 
 * Problem Section 
 */
.problem-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.pain-points {
    list-style: none;
    margin-top: 32px;
}

.pain-points li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 16px;
    font-size: 1.125rem;
}

.icon-red {
    color: var(--accent-red);
    flex-shrink: 0;
    margin-top: 2px;
}

.alert-icon {
    background: rgba(255, 71, 87, 0.1);
    color: var(--accent-red);
}

.problem-card h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    margin: 20px 0 16px;
}

/* 
 * Methodology Section 
 */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
    margin-top: 64px;
}

.step-card {
    position: relative;
    transition: var(--transition);
}

.step-card:hover {
    transform: translateY(-5px);
    background: var(--bg-card-hover);
    border-color: rgba(0, 225, 255, 0.3);
    box-shadow: 0 10px 30px var(--neon-blue-dim);
}

.step-number {
    position: absolute;
    top: 24px;
    right: 24px;
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 900;
    color: rgba(255, 255, 255, 0.30);
}

.icon-wrapper {
    width: 56px;
    height: 56px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
}

.blue-icon {
    background: var(--neon-blue-dim);
    color: var(--neon-blue);
    border: 1px solid rgba(0, 225, 255, 0.2);
}

.step-card h3 {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    margin-bottom: 12px;
}

.step-card p {
    color: var(--text-muted);
}

/* 
 * About Section 
 */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.about-image-wrapper {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
}

.profile-img {
    width: 100%;
    height: auto;
    border-radius: 16px;
    display: block;
    position: relative;
    z-index: 2;
}

.glow-effect {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80%;
    height: 80%;
    background: var(--neon-blue);
    filter: blur(100px);
    opacity: 0.3;
    z-index: 1;
}

.about-text p {
    font-size: 1.125rem;
    color: var(--text-muted);
    margin-bottom: 24px;
}

.about-text strong {
    color: var(--text-main);
}

.about-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-top: 32px;
}

.stat {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--neon-blue-dim);
    padding: 10px 16px;
    border-radius: 8px;
    border: 1px solid rgba(0, 225, 255, 0.2);
    color: var(--neon-blue);
    font-weight: 600;
}

/* 
 * CTA Box 
 */
.glow-border {
    border: 1px solid var(--neon-blue);
    box-shadow: 0 0 30px var(--neon-blue-dim), inset 0 0 20px var(--neon-blue-dim);
}

.cta-box {
    padding: 64px 32px;
}

.cta-box .section-title {
    margin-bottom: 16px;
}

/* 
 * Footer 
 */
footer {
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding: 40px 0;
    text-align: center;
    background: rgba(0,0,0,0.3);
}

.footer-brand p {
    color: var(--text-muted);
    margin-top: 8px;
}

.footer-links {
    margin-top: 24px;
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* 
 * Responsive Design 
 */
@media (max-width: 992px) {
    .hero-title { font-size: 3rem; }
    .problem-grid, .about-grid { grid-template-columns: 1fr; gap: 40px; }
}

@media (max-width: 768px) {
    .hero-title { font-size: 2.5rem; }
    .hero-subtitle { font-size: 1.125rem; }
    .section { padding: 60px 0; }
    .section-title { font-size: 2rem; }
    .btn { width: 100%; }
    .navbar .btn { width: auto; padding: 10px 16px; font-size: 0.875rem; }
    .cta-box { padding: 40px 24px; }
}