/**
 * Omnicom Media Group - Main Stylesheet
 * Design System: Dark theme with pink/blue neon accents
 */

/* ===================================
   CSS Custom Properties
   =================================== */
:root {
    /* Brand Colors */
    --black: #000000;
    --deep-twilight: #000749;
    --indigo-velvet: #4e2b81;
    --raspberry-plum: #b0228c;
    --crayola-blue: #4f7ff2;
    --sky-aqua: #00ccf6;
    --electric-green: #00f65b;
    --tiger-flame: #ff672e;
    --strawberry-red: #f71735;
    
    /* Colors - Dark Backgrounds */
    --color-bg-primary: var(--black);
    --color-bg-secondary: var(--deep-twilight);
    --color-bg-gradient-start: var(--indigo-velvet);
    --color-bg-gradient-end: var(--deep-twilight);
    
    /* Accent Colors */
    --color-primary: var(--raspberry-plum);
    --color-secondary: var(--crayola-blue);
    --color-accent: var(--sky-aqua);
    --color-success: var(--electric-green);
    --color-warning: var(--tiger-flame);
    --color-error: var(--strawberry-red);
    
    /* Legacy names for compatibility */
    --color-neon-pink: var(--raspberry-plum);
    --color-neon-magenta: var(--raspberry-plum);
    --color-neon-blue: var(--sky-aqua);
    --color-neon-azure: var(--crayola-blue);
    
    /* Text Colors */
    --color-text-primary: #ffffff;
    --color-text-secondary: rgba(255, 255, 255, 0.8);
    --color-text-tertiary: rgba(255, 255, 255, 0.6);
    
    /* Glassmorphic Elements */
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    
    /* Typography */
    --font-heading: 'Instrument Sans', sans-serif;
    --font-body: 'Instrument Sans', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Glow Effects */
    --glow-pink: 0 0 20px rgba(176, 34, 140, 0.6), 0 0 40px rgba(176, 34, 140, 0.3);
    --glow-blue: 0 0 20px rgba(0, 204, 246, 0.6), 0 0 40px rgba(0, 204, 246, 0.3);
    --glow-magenta: 0 0 20px rgba(176, 34, 140, 0.6), 0 0 40px rgba(176, 34, 140, 0.3);
    --glow-aqua: 0 0 20px rgba(0, 204, 246, 0.6), 0 0 40px rgba(0, 204, 246, 0.3);
}

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

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

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-text-primary);
    background: linear-gradient(135deg, var(--deep-twilight) 0%, var(--black) 50%, var(--indigo-velvet) 100%);
    background-attachment: fixed;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===================================
   Typography
   =================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 0.9;
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.02em;
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 900;
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 600;
}

h4 {
    font-size: clamp(1.25rem, 2.5vw, 1.5rem);
    font-weight: 600;
}

p {
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-secondary);
}

a {
    color: var(--color-neon-blue);
    text-decoration: none;
    transition: all var(--transition-fast);
}

a:hover {
    color: var(--color-neon-pink);
    text-shadow: var(--glow-pink);
}

/* ===================================
   Layout Containers
   =================================== */
.container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.site-header .container {
    padding-top: 0;
    padding-bottom: 0;
}

.container-fluid {
    width: 100%;
    padding: 0 var(--spacing-md);
}

.section-dark {
    background: var(--color-bg-secondary);
}




/* ===================================
   Unified Gradient Section
   =================================== */
.unified-gradient-section {
    position: relative;
    overflow: hidden;
}

.unified-gradient-section::before {
    content: '';
    position: absolute;
    top: -25%;
    left: -25%;
    width: 150%;
    height: 150%;
    background-image: url('../images/background-gradient.svg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    transform: rotate(180deg);
    animation: undulateBackground 20s ease-in-out infinite;
    z-index: 0;
}

@keyframes undulateBackground {
    0%, 100% {
        transform: rotate(180deg) scale(1) translate(0%, 0%);
    }
    33% {
        transform: rotate(180deg) scale(1.05) translate(2%, 1%);
    }
    66% {
        transform: rotate(180deg) scale(1.08) translate(-1%, 2%);
    }
}





/* ===================================
   Animations
   =================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.animate-on-scroll {
    opacity: 1;
    transform: translateY(0);
    transition: all var(--transition-slow);
}

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

/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 1024px) {
    .hero-geometric {
        width: 400px;
        height: 400px;
        right: 5%;
    }
}

@media (max-width: 768px) {
    .primary-nav {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .hero-geometric {
        width: 300px;
        height: 300px;
        opacity: 0.3;
    }
    
    .agency-logos-grid {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        gap: var(--spacing-md);
    }
    
    /* Reduce glow effects on mobile for performance */
    :root {
        --glow-pink: 0 0 10px rgba(255, 0, 128, 0.4);
        --glow-blue: 0 0 10px rgba(0, 255, 255, 0.4);
        --glow-magenta: 0 0 10px rgba(255, 0, 255, 0.4);
    }
}

/* ===================================
   Accessibility
   =================================== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus styles for keyboard navigation */
a:focus,
button:focus,
input:focus,
textarea:focus {
    outline: 2px solid var(--color-neon-blue);
    outline-offset: 2px;
}

/* Skip to content link */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--color-neon-pink);
    color: var(--color-text-primary);
    padding: 0.5rem 1rem;
    text-decoration: none;
    z-index: 100;
}

.skip-link:focus {
    top: 0;
}


.site-header.scrolled .primary-nav .menu-item-has-children .sub-menu {

        backdrop-filter: blur(10px);
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        background: rgba(0, 7, 73, 0.8)!important;
}