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

:root {
    --bg-dark: #0a0c10;
    --bg-card: rgba(20, 24, 32, 0.6);
    --bg-glass: rgba(255, 255, 255, 0.03);
    --border-glass: rgba(255, 255, 255, 0.08);
    --text-main: #f0f4f8;
    --text-muted: #a0aec0;
    
    --accent-heat: #ff5722;
    --accent-heat-glow: rgba(255, 87, 34, 0.5);
    --accent-cool: #00bcd4;
    --accent-warn: #ffb300;
    --accent-danger: #e53935;
    
    --gradient-primary: linear-gradient(135deg, #ff5722 0%, #e53935 100%);
    --gradient-surface: linear-gradient(180deg, rgba(30, 35, 45, 0.8) 0%, rgba(15, 18, 25, 0.8) 100%);
    
    --shadow-neon: 0 0 20px rgba(255, 87, 34, 0.3);
    --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.5);
    
    --transition-smooth: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

html {
    scroll-behavior: smooth;
}

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

h1, h2, h3, h4, h5, h6 {
    font-family: 'Outfit', sans-serif;
    letter-spacing: -0.02em;
}

a {
    text-decoration: none;
    color: inherit;
}

/* Typography Utility */
.text-gradient {
    background: linear-gradient(to right, #ff8a65, #ff5722, #e53935);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

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

/* Navigation */
nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 1.5rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
    transition: var(--transition-smooth);
    background: transparent;
}

nav.scrolled {
    background: rgba(10, 12, 16, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-glass);
    padding: 1rem 5%;
}

.logo {
    font-family: 'Outfit', sans-serif;
    font-size: 1.5rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo span {
    color: var(--accent-heat);
}

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.nav-links li a {
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--text-muted);
    transition: var(--transition-smooth);
    position: relative;
}

.nav-links li a:hover {
    color: var(--text-main);
}

.nav-links li a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0%;
    height: 2px;
    background: var(--gradient-primary);
    transition: var(--transition-smooth);
}

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

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: var(--transition-smooth);
    box-shadow: var(--shadow-neon);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 25px rgba(255, 87, 34, 0.6);
}

.btn-secondary {
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
    color: var(--text-main);
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-smooth);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
}

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

.hero-slider {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease-in-out, transform 5s linear;
    transform: scale(1.05);
    background-size: cover;
    background-position: center;
}

.slide.active {
    opacity: 1;
    transform: scale(1);
}

.slide::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, rgba(10, 12, 16, 0.9) 0%, rgba(10, 12, 16, 0.6) 50%, rgba(10, 12, 16, 0.3) 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
    padding: 0 5%;
    max-width: 800px;
}

.hero-tag {
    display: inline-block;
    padding: 0.4rem 1rem;
    background: rgba(255, 87, 34, 0.1);
    border: 1px solid rgba(255, 87, 34, 0.3);
    border-radius: 50px;
    color: var(--accent-heat);
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.hero h1 {
    font-size: 4rem;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    max-width: 600px;
}

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

.slider-controls {
    position: absolute;
    bottom: 3rem;
    right: 5%;
    z-index: 3;
    display: flex;
    gap: 1rem;
}

.slider-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    cursor: pointer;
    transition: var(--transition-smooth);
}

.slider-dot.active {
    background: var(--accent-heat);
    box-shadow: 0 0 10px var(--accent-heat);
}

/* General Sections */
section {
    padding: 6rem 5%;
    position: relative;
}

/* Goals Section */
.goals {
    background: url('data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iNDAiIGhlaWdodD0iNDAiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyI+PGRlZnM+PHBhdHRlcm4gaWQ9ImdyaWQiIHdpZHRoPSI0MCIgaGVpZ2h0PSI0MCIgcGF0dGVyblVuaXRzPSJ1c2VyU3BhY2VPblVzZSI+PHBhdGggZD0iTSAwIDEwIEwgNDAgMTAgTSAxMCAwIEwgMTAgNDAiIGZpbGw9Im5vbmUiIHN0cm9rZT0icmdiYSgyNTUsIDI1NSwgMjU1LCAwLjAzKSIgc3Ryb2tlLXdpZHRoPSIxIi8+PC9wYXR0ZXJuPjwvZGVmcz48cmVjdCB3aWR0aD0iMTAwJSIgaGVpZ2h0PSIxMDAlIiBmaWxsPSJ1cmwoI2dyaWQpIi8+PC9zdmc+') var(--bg-dark);
}

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

.goal-card {
    background: var(--gradient-surface);
    border: 1px solid var(--border-glass);
    border-radius: 16px;
    padding: 2.5rem;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.goal-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.goal-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-card);
    border-color: rgba(255, 87, 34, 0.3);
}

.goal-card:hover::before {
    transform: scaleX(1);
}

.goal-icon {
    width: 60px;
    height: 60px;
    background: rgba(255, 87, 34, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: var(--accent-heat);
    margin-bottom: 1.5rem;
}

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

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

/* Features Section */
.features {
    background: var(--bg-dark);
}

.feature-row {
    display: flex;
    align-items: center;
    gap: 4rem;
    margin-bottom: 6rem;
}

.feature-row:nth-child(even) {
    flex-direction: row-reverse;
}

.feature-content {
    flex: 1;
}

.feature-tag {
    color: var(--accent-cool);
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 1rem;
    display: block;
}

.feature-content h3 {
    font-size: 2.2rem;
    margin-bottom: 1.5rem;
}

.feature-content p {
    color: var(--text-muted);
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
}

.feature-list {
    list-style: none;
}

.feature-list li {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 0.8rem;
    color: var(--text-main);
}

.feature-list li i {
    color: var(--accent-heat);
}

.feature-image {
    flex: 1;
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-card);
}

.feature-image::after {
    content: '';
    position: absolute;
    inset: 0;
    border: 1px solid var(--border-glass);
    border-radius: 20px;
    pointer-events: none;
}

.feature-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.5s ease;
}

.feature-row:hover .feature-image img {
    transform: scale(1.03);
}

/* Solutions Section */
.solutions {
    background: #0f1218;
    position: relative;
}

.solutions::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-glass), transparent);
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.solution-card {
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: 12px;
    padding: 2rem;
    transition: var(--transition-smooth);
}

.solution-card:hover {
    background: rgba(30, 35, 45, 0.8);
    border-color: rgba(255, 255, 255, 0.2);
}

.solution-card h4 {
    font-size: 1.2rem;
    margin-bottom: 0.8rem;
    color: #fff;
}

.solution-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* Architecture / Block Diagram */
.architecture {
    background: var(--bg-dark);
    padding-bottom: 8rem;
}

.arch-diagram {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    align-items: center;
    max-width: 1000px;
    margin: 0 auto;
}

.arch-layer {
    background: var(--gradient-surface);
    border: 1px solid var(--border-glass);
    border-radius: 16px;
    width: 100%;
    padding: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
    backdrop-filter: blur(10px);
}

.arch-layer::after {
    content: '↓';
    position: absolute;
    bottom: -35px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 1.5rem;
    color: var(--accent-heat);
}

.arch-layer:last-child::after {
    display: none;
}

.arch-layer.ai-engine {
    background: linear-gradient(135deg, rgba(255, 87, 34, 0.1) 0%, rgba(229, 57, 53, 0.1) 100%);
    border-color: rgba(255, 87, 34, 0.3);
    box-shadow: 0 0 30px rgba(255, 87, 34, 0.1);
}

.arch-title {
    flex: 0 0 250px;
}

.arch-title h4 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
}

.arch-title p {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.arch-items {
    flex: 1;
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.arch-item {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 500;
}

/* Footer */
footer {
    background: #050608;
    padding: 4rem 5% 2rem;
    border-top: 1px solid var(--border-glass);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.footer-links {
    display: flex;
    gap: 1.5rem;
}

.footer-links a {
    color: var(--text-muted);
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--text-main);
}

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

/* Responsive */
@media (max-width: 992px) {
    .hero h1 {
        font-size: 3rem;
    }
    .feature-row, .feature-row:nth-child(even) {
        flex-direction: column;
        gap: 2rem;
    }
    .arch-layer {
        flex-direction: column;
        text-align: center;
        gap: 1.5rem;
    }
    .arch-items {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none; /* Add mobile menu in real implementation */
    }
    .hero h1 {
        font-size: 2.5rem;
    }
    .arch-layer::after {
        bottom: -30px;
    }
}

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

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