/* ================================================================
   VANTAGE SOFTWARES - TECH BRUTALIST DESIGN SYSTEM
   Clean, precise aesthetic inspired by linear.app / raycast.com
   ================================================================ */

/* --------------------------------------------------------------
   CSS CUSTOM PROPERTIES (DESIGN TOKENS)
   -------------------------------------------------------------- */
:root {
    /* COLOR PALETTE - High contrast foundation */
    --color-black: #0A0A0A;
    --color-gray-900: #1A1A1A;
    --color-gray-800: #262626;
    --color-gray-700: #3A3A3A;
    --color-gray-600: #525252;
    --color-gray-400: #A3A3A3;
    --color-gray-300: #BEBEBE;
    --color-white: #FFFFFF;

    /* BRAND COLORS - Electric blue accent */
    --brand-blue: #157EFB;
    --brand-blue-dark: #0D60C9;
    --brand-blue-light: rgba(21, 126, 251, 0.08);

    /* TYPOGRAPHY */
    --font-display: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', system-ui, -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    /* SPACING SCALE (4px base) */
    --space-1: 0.25rem;   /* 4px */
    --space-2: 0.5rem;    /* 8px */
    --space-3: 1rem;      /* 16px */
    --space-4: 1.5rem;    /* 24px */
    --space-5: 2rem;      /* 32px */
    --space-6: 3rem;      /* 48px */
    --space-7: 4rem;      /* 64px */
    --space-8: 6rem;      /* 96px */

    /* BORDER RADIUS - Minimal, sharp aesthetic */
    --radius-sm: 2px;
    --radius-none: 0;

    /* TRANSITIONS */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
}

/* --------------------------------------------------------------
   RESET & BASE STYLES
   -------------------------------------------------------------- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-gray-300);
    background-color: var(--color-black);
}

/* --------------------------------------------------------------
   TYPOGRAPHY SYSTEM
   -------------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 600;
    line-height: 1.2;
    color: var(--color-white);
}

h1 { font-size: clamp(2rem, 5vw + 1rem, 3.5rem); }
h2 { font-size: clamp(1.75rem, 4vw + 1rem, 2.5rem); }
h3 { font-size: clamp(1.25rem, 2vw + 0.5rem, 1.75rem); }

p {
    margin-bottom: var(--space-3);
}

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

.mono { font-family: var(--font-mono); }

/* Text gradient effect */
.text-gradient {
    background: linear-gradient(135deg, #fff 0%, var(--brand-blue) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* --------------------------------------------------------------
   LAYOUT UTILITIES
   -------------------------------------------------------------- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-4);
}

.section-padding {
    padding: var(--space-8) 0;
}

.text-center { text-align: center; }

/* --------------------------------------------------------------
   BUTTONS - Sharp, technical aesthetic
   -------------------------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-family: var(--font-display);
    font-size: 0.875rem;
    font-weight: 500;
    padding: var(--space-3) var(--space-5);
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-base);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.btn-primary {
    background-color: var(--brand-blue);
    color: white;
    border-color: var(--brand-blue);
}

.btn-primary:hover {
    background-color: var(--brand-blue-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(21, 126, 251, 0.3);
}

.btn-outline {
    background: transparent;
    color: white;
    border-color: var(--color-gray-600);
}

.btn-outline:hover {
    border-color: var(--brand-blue);
    color: var(--brand-blue);
}

/* --------------------------------------------------------------
   NAVIGATION - Fixed, minimal
   -------------------------------------------------------------- */
.navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    padding: var(--space-3) 0;
    background-color: rgba(10, 10, 10, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-gray-700);
}

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

.logo img { height: 36px; }

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.nav-link {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--color-gray-400);
    padding: var(--space-2) var(--space-3);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0; left: var(--space-3); right: var(--space-3);
    height: 2px;
    background-color: var(--brand-blue);
    transform: scaleX(0);
    transition: transform var(--transition-fast);
}

.nav-link:hover, .nav-link.active {
    color: white;
}

.nav-link:hover::after, .nav-link.active::after {
    transform: scaleX(1);
}

/* Dropdown */
.dropdown { position: relative; }

.dropdown-menu {
    position: absolute;
    top: 100%; left: 0;
    min-width: 200px;
    background-color: var(--color-gray-900);
    border: 1px solid var(--color-gray-700);
    padding: var(--space-2) 0;
    opacity: 0; visibility: hidden;
    transform: translateY(10px);
    transition: all var(--transition-base);
}

.dropdown:hover .dropdown-menu {
    opacity: 1; visibility: visible;
    transform: translateY(var(--space-1));
}

.dropdown-item {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--color-gray-400);
    padding: var(--space-2) var(--space-4);
}

.dropdown-item:hover {
    background-color: var(--brand-blue-light);
    color: var(--brand-blue);
}

/* --------------------------------------------------------------
   HERO SECTION - Maximum impact
   -------------------------------------------------------------- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: var(--space-8);
    overflow: hidden;
}

/* Animated background grid */
.hero::before {
    content: '';
    position: absolute; inset: 0;
    background-image:
        linear-gradient(var(--color-gray-800) 1px, transparent 1px),
        linear-gradient(90deg, var(--color-gray-800) 1px, transparent 1px);
    background-size: 60px 60px;
    opacity: 0.3;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 700px;
}

.hero h1 {
    margin-bottom: var(--space-4);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-gray-400);
    margin-bottom: var(--space-6);
}

.hero-actions {
    display: flex;
    gap: var(--space-3);
    flex-wrap: wrap;
}

/* --------------------------------------------------------------
   SERVICES SECTION - Card grid
   -------------------------------------------------------------- */
.services-section {
    background-color: var(--color-gray-900);
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-7);
}

.section-header h2 {
    margin-bottom: var(--space-3);
}

.section-header p {
    color: var(--color-gray-400);
    font-size: 1.125rem;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--space-4);
}

.service-card {
    background-color: var(--color-black);
    border: 1px solid var(--color-gray-700);
    padding: var(--space-6);
    transition: all var(--transition-base);
}

.service-card:hover {
    transform: translateY(-8px);
    border-color: var(--brand-blue);
    box-shadow: 0 20px 40px rgba(0,0,0,0.3);
}

.service-icon {
    font-size: 2rem;
    color: var(--brand-blue);
    margin-bottom: var(--space-4);
}

.service-card h3 {
    margin-bottom: var(--space-3);
}

.service-card p {
    color: var(--color-gray-400);
    font-size: 0.95rem;
    line-height: 1.7;
}

.learn-more-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    margin-top: var(--space-4);
    color: var(--brand-blue);
    font-family: var(--font-mono);
    font-size: 0.875rem;
}

.learn-more-link:hover {
    gap: var(--space-3);
}

/* --------------------------------------------------------------
   VALUES SECTION - Feature items
   -------------------------------------------------------------- */
.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-4);
}

.value-item {
    background-color: var(--color-gray-900);
    padding: var(--space-5);
    border-left: 3px solid var(--brand-blue);
}

.value-icon {
    font-size: 1.75rem;
    color: var(--brand-blue);
    margin-bottom: var(--space-3);
}

.value-item h4 {
    margin-bottom: var(--space-2);
}

.value-item p {
    color: var(--color-gray-400);
    font-size: 0.95rem;
    margin-bottom: 0;
}

/* --------------------------------------------------------------
   STATISTICS BANNER - High contrast
   -------------------------------------------------------------- */
.stats-section {
    background: linear-gradient(135deg, var(--brand-blue) 0%, #0D60C9 100%);
    color: white;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-5);
    text-align: center;
}

.stat-item h3 {
    font-size: 3rem;
    color: white;
    margin-bottom: var(--space-1);
}

.stat-item p {
    color: rgba(255,255,255,0.8);
    font-family: var(--font-mono);
    font-size: 0.875rem;
    margin-bottom: 0;
}

/* --------------------------------------------------------------
   CTA SECTION - Pre-footer call to action
   -------------------------------------------------------------- */
.cta-section {
    background-color: var(--color-gray-900);
    border-top: 1px solid var(--color-gray-700);
}

.cta-content {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: var(--space-5);
    align-items: center;
}

.cta-text h3 {
    font-size: 1.5rem;
    margin-bottom: 0;
}

/* --------------------------------------------------------------
   FOOTER - Clean, organized
   -------------------------------------------------------------- */
footer {
    background-color: var(--color-gray-900);
    border-top: 1px solid var(--color-gray-700);
    padding: var(--space-7) 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-6);
    margin-bottom: var(--space-5);
}

.footer-col h4 {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: white;
    margin-bottom: var(--space-4);
}

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

.footer-col li {
    margin-bottom: var(--space-2);
}

.footer-col a {
    color: var(--color-gray-400);
    font-size: 0.95rem;
    transition: color var(--transition-fast);
}

.footer-col a:hover {
    color: var(--brand-blue);
}

.social-links {
    display: flex;
    gap: var(--space-2);
}

.social-link {
    width: 40px; height: 40px;
    background-color: var(--color-gray-800);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    transition: all var(--transition-fast);
}

.social-link:hover {
    background-color: var(--brand-blue);
}

.footer-bottom {
    padding-top: var(--space-5);
    border-top: 1px solid var(--color-gray-700);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.875rem;
    color: var(--color-gray-400);
}

/* --------------------------------------------------------------
   RESPONSIVE DESIGN
   -------------------------------------------------------------- */
@media (max-width: 968px) {
    .nav-menu { display: none; }
    
    .hero h1 { font-size: 2.5rem; }
    
    .cta-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

@media (max-width: 640px) {
    .container { padding: 0 var(--space-3); }
    
    h1 { font-size: 2rem; }
    h2 { font-size: 1.5rem; }
}