/* ==========================================================================
   GROUNDPAGES - STATIC CREDIBILITY LANDING PAGE STYLING
   ========================================================================== */

/* 1. Theme Variables & Tokens */
:root {
    --clr-bg-primary: #0b0f19;       /* Deep dark navy */
    --clr-bg-secondary: #111827;     /* Slightly lighter dark slate navy */
    --clr-bg-card: #1c2536;          /* Clean slate navy for cards */
    --clr-bg-card-hover: #222e42;
    
    --clr-txt-primary: #ffffff;      /* High contrast white */
    --clr-txt-secondary: #94a3b8;    /* Soft slate grey */
    --clr-txt-muted: #64748b;        /* Muted grey */
    
    --clr-accent: #f59e0b;           /* Warm amber accent */
    --clr-accent-hover: #d97706;     /* Darker amber for hover */
    --clr-accent-light: rgba(245, 158, 11, 0.1);
    
    --clr-border: #1e293b;           /* Thin slate border */
    --clr-border-focus: #334155;
    
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-full: 9999px;
    
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    
    --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 2. Global Resets & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    background-color: var(--clr-bg-primary);
    color: var(--clr-txt-secondary);
    font-family: var(--font-sans);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.container {
    width: 100%;
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

h1, h2, h3, h4 {
    color: var(--clr-txt-primary);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-fast);
}

section {
    padding: 4.5rem 0;
}

.section-title {
    text-align: center;
    font-size: 1.75rem;
    margin-bottom: 2.5rem;
    position: relative;
}

.section-title::after {
    content: "";
    display: block;
    width: 40px;
    height: 3px;
    background-color: var(--clr-accent);
    margin: 0.75rem auto 0 auto;
    border-radius: var(--radius-full);
}

/* 3. Button Styles */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    border: 2px solid transparent;
    transition: var(--transition-fast);
}

.btn-sm {
    padding: 0.45rem 1rem;
    font-size: 0.85rem;
    border-radius: var(--radius-sm);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.1rem;
    border-radius: var(--radius-md);
}

.btn-primary {
    background-color: var(--clr-accent);
    color: var(--clr-bg-primary);
}

.btn-primary:hover {
    background-color: var(--clr-accent-hover);
}

.btn-secondary {
    background-color: var(--clr-bg-card);
    color: var(--clr-txt-primary);
    border-color: var(--clr-border);
}

.btn-secondary:hover {
    background-color: var(--clr-bg-card-hover);
    border-color: var(--clr-border-focus);
}

.btn-outline {
    border-color: var(--clr-border);
    color: var(--clr-txt-primary);
    background-color: transparent;
}

.btn-outline:hover {
    border-color: var(--clr-accent);
    color: var(--clr-accent);
}

/* 4. Header & Navigation */
.site-header {
    border-bottom: 1px solid var(--clr-border);
    padding: 1.25rem 0;
    background-color: var(--clr-bg-primary);
    z-index: 10;
}

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

.logo {
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--clr-txt-primary);
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.logo-accent {
    width: 6px;
    height: 18px;
    background-color: var(--clr-accent);
    border-radius: var(--radius-full);
}

/* 5. Hero Section */
.hero-section {
    background-color: var(--clr-bg-primary);
    padding: 5rem 0;
    text-align: center;
    border-bottom: 1px solid var(--clr-border);
}

.hero-content {
    max-width: 680px;
    margin: 0 auto;
}

.hero-content h1 {
    font-size: 2.25rem;
    margin-bottom: 1.25rem;
    line-height: 1.15;
}

.hero-text {
    font-size: 1.1rem;
    color: var(--clr-txt-secondary);
    margin-bottom: 2rem;
}

.hero-ctas {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    justify-content: center;
    align-items: center;
}

.hero-ctas .btn {
    width: 100%;
    max-width: 280px;
}

/* 6. Services Section */
.services-section {
    background-color: var(--clr-bg-secondary);
    border-bottom: 1px solid var(--clr-border);
}

.services-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

.service-card {
    background-color: var(--clr-bg-card);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-md);
    padding: 2.25rem 1.75rem;
    transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.service-card:hover {
    transform: translateY(-2px);
    border-color: var(--clr-accent);
}

.card-icon {
    font-size: 2.25rem;
    display: block;
    margin-bottom: 1rem;
    line-height: 1;
}

.service-card h3 {
    font-size: 1.2rem;
    margin-bottom: 0.75rem;
}

.service-card p {
    font-size: 0.9rem;
    color: var(--clr-txt-secondary);
}

/* 7. Featured Demo Section */
.demo-section {
    background-color: var(--clr-bg-primary);
    border-bottom: 1px solid var(--clr-border);
}

.demo-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    align-items: center;
}

.demo-badge {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--clr-accent);
    background-color: var(--clr-accent-light);
    padding: 0.25rem 0.6rem;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.75rem;
}

.demo-content h2 {
    font-size: 1.75rem;
    margin-bottom: 1rem;
}

.demo-description {
    font-size: 0.95rem;
    color: var(--clr-txt-secondary);
    margin-bottom: 1.5rem;
}

.demo-graphic {
    width: 100%;
}

.demo-preview-img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    border: 1px solid var(--clr-border);
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.3);
    display: block;
    transition: transform var(--transition-fast);
}

.demo-preview-img:hover {
    transform: translateY(-2px);
}


/* 9. Contact Section */
.contact-section {
    background-color: var(--clr-bg-primary);
    text-align: center;
}

.contact-container h2 {
    font-size: 1.75rem;
    margin-bottom: 1rem;
}

.contact-container p {
    font-size: 1.05rem;
    max-width: 550px;
    margin: 0 auto 2rem auto;
    color: var(--clr-txt-secondary);
}

.contact-cta .btn {
    font-family: monospace;
    letter-spacing: -0.01em;
}

/* 10. Footer */
.site-footer {
    background-color: var(--clr-bg-secondary);
    border-top: 1px solid var(--clr-border);
    padding: 2.5rem 0;
    text-align: center;
    font-size: 0.85rem;
    color: var(--clr-txt-muted);
}

/* 11. Media Queries */
@media (min-width: 768px) {
    .hero-content h1 {
        font-size: 3rem;
    }
    
    .hero-ctas {
        flex-direction: row;
        gap: 1rem;
    }
    
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.75rem;
        max-width: 760px;
        margin: 0 auto;
    }
    
    .demo-container {
        grid-template-columns: 1fr 1fr;
        gap: 4rem;
    }

}

/* 12. Contact Card Styles */
.contact-card-wrapper {
    background-color: var(--clr-bg-card);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-lg);
    padding: 3rem 2rem;
    max-width: 550px;
    margin: 2.5rem auto;
    text-align: center;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.3);
}

.contact-card-wrapper h3 {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
    color: var(--clr-txt-primary);
}

.contact-card-desc {
    font-size: 0.95rem;
    color: var(--clr-txt-secondary);
    margin-bottom: 2rem;
    line-height: 1.5;
}

.contact-card-actions {
    display: flex;
    justify-content: center;
}

.contact-card-actions .btn {
    width: 100%;
    max-width: 380px;
    font-family: monospace;
    letter-spacing: -0.01em;
}