/* =============================================================================
   CortexForge Landing Page - Clean & Minimal Style
   ============================================================================= */

:root {
    --primary-blue: #2563eb;
    --primary-light: #3b82f6;
    --primary-dark: #1d4ed8;
    --bg-light: #f8fafc;
    --bg-white: #ffffff;
    --text-dark: #1e293b;
    --text-muted: #64748b;
    --border-light: #e2e8f0;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

* {
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    color: var(--text-dark);
    background-color: var(--bg-white);
    line-height: 1.6;
}

/* -----------------------------------------------------------------------------
   Navigation
   ----------------------------------------------------------------------------- */

.navbar {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-light);
    padding: 1rem 0;
    transition: all 0.3s ease;
}

.navbar-brand {
    font-size: 1.5rem;
    color: var(--text-dark) !important;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.navbar-brand i {
    font-size: 1.75rem;
}

.btn-primary {
    background-color: var(--primary-blue);
    border-color: var(--primary-blue);
    padding: 0.5rem 1.5rem;
    font-weight: 500;
    border-radius: 8px;
    transition: all 0.2s ease;
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    border-color: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

/* -----------------------------------------------------------------------------
   Hero Section
   ----------------------------------------------------------------------------- */

.hero-section {
    background: linear-gradient(135deg, var(--bg-white) 0%, var(--bg-light) 100%);
    padding-top: 80px;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-section h1 {
    color: var(--text-dark);
    line-height: 1.2;
}

.hero-section .lead {
    font-size: 1.25rem;
    line-height: 1.8;
}

/* Hero Illustration */
.hero-illustration {
    position: relative;
    height: 400px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.floating-card {
    position: absolute;
    background: var(--bg-white);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    animation: float 6s ease-in-out infinite;
}

.floating-card i {
    font-size: 3rem;
    color: var(--primary-blue);
}

.card-1 {
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.card-2 {
    top: 50%;
    right: 15%;
    animation-delay: 2s;
}

.card-3 {
    bottom: 15%;
    left: 30%;
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
}

/* -----------------------------------------------------------------------------
   Features Section
   ----------------------------------------------------------------------------- */

.features-section {
    background-color: var(--bg-light);
    padding: 5rem 0;
}

.features-section h2 {
    color: var(--text-dark);
    font-size: 2.5rem;
}

.feature-card {
    background: var(--bg-white);
    border-radius: 16px;
    padding: 3rem;
    box-shadow: var(--shadow-md);
    min-height: 350px;
}

.feature-icon-large {
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary-blue) 100%);
    width: 150px;
    height: 150px;
    border-radius: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
}

.feature-icon-large i {
    font-size: 4rem;
    color: white;
}

.feature-card h3 {
    color: var(--text-dark);
}

.feature-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.feature-list li {
    padding: 0.5rem 0;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.feature-list li i {
    font-size: 1rem;
}

/* Carousel Controls */
.carousel-control-prev,
.carousel-control-next {
    width: 50px;
    height: 50px;
    background-color: var(--primary-blue);
    border-radius: 50%;
    top: 50%;
    transform: translateY(-50%);
    opacity: 1;
}

.carousel-control-prev {
    left: -60px;
}

.carousel-control-next {
    right: -60px;
}

.carousel-control-prev:hover,
.carousel-control-next:hover {
    background-color: var(--primary-dark);
}

.carousel-indicators {
    bottom: -50px;
}

.carousel-indicators button {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: var(--border-light);
    border: none;
    margin: 0 5px;
}

.carousel-indicators button.active {
    background-color: var(--primary-blue);
}

/* -----------------------------------------------------------------------------
   CTA Section
   ----------------------------------------------------------------------------- */

.cta-section {
    background-color: var(--bg-white);
    padding: 5rem 0;
}

.cta-section h2 {
    color: var(--text-dark);
    font-size: 2rem;
}

/* -----------------------------------------------------------------------------
   Footer
   ----------------------------------------------------------------------------- */

.footer {
    background-color: var(--bg-light);
    border-top: 1px solid var(--border-light);
}

/* -----------------------------------------------------------------------------
   Responsive
   ----------------------------------------------------------------------------- */

@media (max-width: 991px) {
    .hero-section {
        text-align: center;
        padding-top: 100px;
    }

    .hero-section .btn {
        width: 100%;
        max-width: 300px;
    }

    .feature-card {
        padding: 2rem;
    }

    .feature-icon-large {
        width: 100px;
        height: 100px;
        margin-bottom: 1.5rem;
    }

    .feature-icon-large i {
        font-size: 2.5rem;
    }

    .carousel-control-prev,
    .carousel-control-next {
        display: none;
    }
}

@media (max-width: 767px) {
    .hero-section h1 {
        font-size: 2rem;
    }

    .features-section h2 {
        font-size: 1.75rem;
    }

    .feature-card .row {
        text-align: center;
    }

    .feature-card .col-md-7 {
        text-align: left;
    }

    .feature-list {
        margin-top: 1rem;
    }
}