/* ===== CSS Variables ===== */
:root {
    --color-bg-primary: #0a0f1a;
    --color-bg-secondary: #0d1424;
    --color-bg-card: rgba(13, 20, 36, 0.8);
    --color-text-primary: #ffffff;
    --color-text-secondary: #94a3b8;
    --color-accent: #3b82f6;
    --color-accent-light: #60a5fa;
    --color-border: rgba(59, 130, 246, 0.2);
    --color-glow: rgba(59, 130, 246, 0.15);
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
}

/* ===== Reset & Base ===== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
    min-height: 100vh;
    line-height: 1.6;
    overflow-x: hidden;
}

/* ===== Background Animation ===== */
.background-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.grid-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(59, 130, 246, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(59, 130, 246, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
    0% { transform: translate(0, 0); }
    100% { transform: translate(50px, 50px); }
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
    animation: float 15s ease-in-out infinite;
}

.orb-1 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, var(--color-accent) 0%, transparent 70%);
    top: -100px;
    right: -100px;
    animation-delay: 0s;
}

.orb-2 {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, #1e3a5f 0%, transparent 70%);
    bottom: -50px;
    left: -50px;
    animation-delay: -7s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -30px) scale(1.1); }
    66% { transform: translate(-20px, 20px) scale(0.9); }
}

/* ===== Container ===== */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    position: relative;
    z-index: 1;
}

/* ===== Header ===== */
.header {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 1rem 0;
    margin-bottom: 2rem;
}

.logo {
    height: 75px;
    width: auto;
    object-fit: contain;
    transition: transform var(--transition-medium);
}

.logo:hover {
    transform: scale(1.05);
}

/* ===== Hero Section ===== */
.hero {
    text-align: center;
    padding: 3rem 0;
    flex-grow: 0;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    padding: 0.5rem 1rem;
    border-radius: 9999px;
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin-bottom: 2rem;
    backdrop-filter: blur(10px);
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--color-accent);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.2); }
}

.title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
}

.highlight {
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subtitle {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.7;
}

/* ===== Features Section ===== */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    padding: 3rem 0;
}

.feature-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
    transition: all var(--transition-medium);
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
    opacity: 0;
    transition: opacity var(--transition-medium);
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: var(--color-accent);
    box-shadow: 0 20px 40px -15px var(--color-glow);
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-light) 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: white;
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.feature-card p {
    color: var(--color-text-secondary);
    font-size: 0.9375rem;
}

/* ===== Contact Section ===== */
.contact {
    padding: 3rem 0;
    text-align: center;
}

.contact h2 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 2rem;
    color: var(--color-text-secondary);
}

.contact-cards {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.5rem;
}

.contact-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 1.25rem 1.75rem;
    text-decoration: none;
    color: var(--color-text-primary);
    transition: all var(--transition-medium);
    backdrop-filter: blur(10px);
    min-width: 280px;
}

.contact-card:hover {
    border-color: var(--color-accent);
    transform: translateY(-3px);
    box-shadow: 0 10px 30px -10px var(--color-glow);
}

.contact-icon {
    width: 48px;
    height: 48px;
    background: rgba(59, 130, 246, 0.1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-accent);
    flex-shrink: 0;
}

.contact-info {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.contact-label {
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.contact-value {
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-text-primary);
}

/* ===== Footer ===== */
.footer {
    margin-top: auto;
    padding: 2rem 0;
    text-align: center;
    border-top: 1px solid var(--color-border);
}

.security-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-accent);
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

.footer p {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
}

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
    .container {
        padding: 1.5rem 1rem;
    }

    .hero {
        padding: 2rem 0;
    }

    .features {
        grid-template-columns: 1fr;
        padding: 2rem 0;
    }

    .contact-cards {
        flex-direction: column;
        align-items: center;
    }

    .contact-card {
        width: 100%;
        max-width: 350px;
    }
}

@media (max-width: 480px) {
    .logo {
        height: 60px;
    }

    .title {
        font-size: 1.75rem;
    }

    .subtitle {
        font-size: 1rem;
    }

    .feature-card {
        padding: 1.5rem;
    }
}

/* ===== Animations on Load ===== */
.fade-in {
    animation: fadeIn 0.8s ease forwards;
    opacity: 0;
}

.fade-in-delay-1 { animation-delay: 0.1s; }
.fade-in-delay-2 { animation-delay: 0.2s; }
.fade-in-delay-3 { animation-delay: 0.3s; }
.fade-in-delay-4 { animation-delay: 0.4s; }

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== Scroll Animations ===== */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}