:root {
    --bg-dark: #0f1115;
    --bg-card: #1a1d24;
    --text-primary: #f8f9fa;
    --text-secondary: #adb5bd;
    --accent-color: #dc2626; /* Deep Red / Burnt Orange theme */
    --accent-hover: #b91c1c;
    --accent-gradient: linear-gradient(135deg, #ea580c, #dc2626);
    --font-sans: '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 {
    font-family: var(--font-sans);
    background-color: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* Typography */
h1, h2, h3, h4 {
    font-family: var(--font-sans);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 {
    font-size: clamp(3rem, 5vw, 5rem);
    letter-spacing: -0.02em;
}

h2 {
    font-size: clamp(2rem, 4vw, 3.5rem);
}

h3 {
    font-size: 1.5rem;
}

p {
    color: var(--text-secondary);
    font-size: 1.125rem;
    margin-bottom: 1.5rem;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    font-size: 1rem;
    border: none;
}

.btn-sm {
    padding: 0.5rem 1.25rem;
    font-size: 0.875rem;
}

.btn-primary {
    background: var(--accent-gradient);
    color: white;
    box-shadow: 0 4px 15px rgba(220, 38, 38, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(220, 38, 38, 0.5);
    background: linear-gradient(135deg, #c2410c, #b91c1c);
}

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

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

.btn-text {
    background: transparent;
    color: var(--text-primary);
    padding: 0.875rem 1rem;
}

.btn-text:hover {
    color: var(--accent-color);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 1.5rem 0;
    z-index: 1000;
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(15, 17, 21, 0.9);
    backdrop-filter: blur(10px);
    padding: 1rem 0;
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-primary);
    text-decoration: none;
    letter-spacing: -0.05em;
}

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

.nav-links {
    display: flex;
    list-style: none;
    gap: 2.5rem;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

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

/* Hero Section */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-animated-bg {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at center, rgba(220, 38, 38, 0.15) 0%, transparent 40%),
                radial-gradient(circle at 80% 20%, rgba(234, 88, 12, 0.1) 0%, transparent 30%);
    background-size: 100% 100%;
    animation: rotateBg 20s linear infinite;
    z-index: 0;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, rgba(15,17,21,0.2) 0%, rgba(15,17,21,1) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1s forwards 0.2s;
}

.hero-subtitle {
    font-size: 1.25rem;
    max-width: 600px;
    margin-bottom: 2.5rem;
}

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

/* Sections */
.section {
    padding: 8rem 0;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 5rem;
}

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

.feature-card {
    background: var(--bg-card);
    padding: 3rem 2rem;
    border-radius: 20px;
    text-align: center;
    border: 1px solid rgba(255,255,255,0.02);
    transition: var(--transition);
    opacity: 0;
    transform: translateY(30px);
}

.feature-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.feature-card:hover {
    transform: translateY(-10px);
    border-color: rgba(220, 38, 38, 0.2);
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

/* Apps Section */
.apps-section {
    background: rgba(255,255,255,0.01);
}

.apps-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    max-width: 900px;
    margin: 0 auto;
}

.app-card {
    display: flex;
    flex-direction: row;
    background: var(--bg-card);
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid rgba(255,255,255,0.05);
    transition: var(--transition);
}

.app-card:hover {
    transform: translateY(-5px);
    border-color: rgba(255,255,255,0.1);
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

.app-image {
    width: 40%;
    min-width: 300px;
    background: #111;
    display: flex;
    align-items: center;
    justify-content: center;
    border-right: 1px solid rgba(255,255,255,0.05);
    overflow: hidden;
}

.app-mockup {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.app-card:hover .app-mockup {
    transform: scale(1.05);
}

.app-details {
    padding: 3rem;
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.badge {
    align-self: flex-start;
    padding: 0.25rem 0.75rem;
    background: rgba(220, 38, 38, 0.1);
    color: var(--accent-color);
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1rem;
}

.app-platform {
    font-size: 0.875rem;
    color: #94a3b8;
    margin-top: -0.5rem;
    margin-bottom: 1.5rem;
}

/* CTA */
.cta-section {
    background: linear-gradient(to right, #1a1d24, #121419);
    border-top: 1px solid rgba(255,255,255,0.05);
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

.cta-container {
    text-align: center;
    max-width: 600px;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 2rem;
    text-align: left;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 1rem 1.5rem;
    border-radius: 10px;
    border: 1px solid rgba(255,255,255,0.1);
    background: rgba(255,255,255,0.05);
    color: var(--text-primary);
    font-size: 1rem;
    font-family: var(--font-sans);
    outline: none;
    transition: var(--transition);
}

.contact-form input:focus,
.contact-form textarea:focus {
    border-color: var(--accent-color);
    background: rgba(255,255,255,0.1);
}

.contact-form button {
    align-self: flex-start;
    margin-top: 0.5rem;
}

/* Footer */
.footer {
    padding: 5rem 0 2rem;
    background: var(--bg-dark);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    margin-bottom: 4rem;
}

.footer-brand p {
    margin-top: 1rem;
    font-size: 1rem;
}

.footer-links h4 {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.75rem;
}

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

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.05);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Animations */
@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes rotateBg {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links, .btn-outline {
        display: none;
    }
    
    .hero-content {
        text-align: center;
        margin: 0 auto;
    }
    
    .hero-actions {
        justify-content: center;
        flex-direction: column;
    }
    
    /* Ensure App Card stacks gracefully on mobile */
    .app-card {
        flex-direction: column;
    }
    
    .app-image {
        width: 100%;
        min-width: unset;
        height: 250px; /* Fixed height so image doesn't get too large */
        border-right: none;
        border-bottom: 1px solid rgba(255,255,255,0.05);
    }
    
    .app-details {
        padding: 2rem;
    }
    
    .contact-form button {
        width: 100%;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}