/*
Theme Name: NexusAI Media Theme
Theme URI: https://nexusai.media
Author: NexusAI Media
Author URI: https://nexusai.media
Description: Custom WordPress theme for NexusAI Media - The first advertising agency dedicated to placing brands inside AI platforms.
Version: 1.0.0
Tested up to: 6.7
Requires PHP: 8.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: nexusai
Tags: dark-mode, custom-background, custom-logo, custom-menu, featured-images, theme-options

NexusAI Media Theme - Advertise Inside AI Platforms
*/

/* ==========================================================================
   CSS Variables - Brand Guidelines
   ========================================================================== */
:root {
    /* Background Colors */
    --bg-primary: #08080c;
    --bg-secondary: #0e0e14;
    --bg-tertiary: #141420;
    --bg-card: #16161f;

    /* Accent Colors */
    --accent-1: #00D4AA;
    --accent-2: #0099FF;
    --accent-3: #FF6B2C;

    /* Gradients */
    --accent-gradient: linear-gradient(135deg, #00D4AA 0%, #0099FF 100%);
    --accent-gradient-2: linear-gradient(135deg, #0099FF 0%, #00D4AA 100%);

    /* Text Colors */
    --text-primary: #ffffff;
    --text-secondary: #a1a1aa;
    --text-muted: #71717a;

    /* Border Colors */
    --border-color: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(255, 255, 255, 0.15);

    /* Typography */
    --font-heading: 'Newsreader', Georgia, serif;
    --font-body: 'Instrument Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Courier New', monospace;

    /* Spacing */
    --section-padding: 7rem 3rem;
    --container-max: 1400px;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-2xl: 24px;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

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

body {
    font-family: var(--font-body);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    font-size: 16px;
}

/* ==========================================================================
   Typography
   ========================================================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 500;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

h1 { font-size: 4.25rem; }
h2 { font-size: 3rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.1rem; }
h6 { font-size: 1rem; }

p {
    color: var(--text-secondary);
    line-height: 1.7;
}

a {
    color: var(--accent-1);
    text-decoration: none;
    transition: color var(--transition-normal);
}

a:hover {
    color: var(--accent-2);
}

em, .gradient-text {
    font-style: italic;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

/* ==========================================================================
   Layout
   ========================================================================== */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 3rem;
}

.section {
    padding: var(--section-padding);
    position: relative;
    z-index: 1;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-eyebrow {
    display: inline-block;
    font-size: 0.75rem;
    color: var(--accent-1);
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: 600;
    margin-bottom: 1.25rem;
}

.section-title {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 1.15rem;
    max-width: 600px;
    margin: 0 auto;
}

/* ==========================================================================
   Background Effects
   ========================================================================== */
.page-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

.bg-gradient-1 {
    position: absolute;
    top: -20%;
    right: -10%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(0, 212, 170, 0.12) 0%, transparent 70%);
    filter: blur(60px);
}

.bg-gradient-2 {
    position: absolute;
    bottom: 20%;
    left: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0, 153, 255, 0.1) 0%, transparent 70%);
    filter: blur(60px);
}

.bg-noise {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.03;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 1rem 2rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    transition: all var(--transition-normal);
    border: none;
    cursor: pointer;
    font-family: var(--font-body);
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 20px 40px rgba(0, 212, 170, 0.25);
    color: var(--bg-primary);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    border-color: var(--border-hover);
    background: rgba(255, 255, 255, 0.03);
    color: var(--text-primary);
}

/* ==========================================================================
   Cards
   ========================================================================== */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 2.5rem;
    transition: all var(--transition-normal);
}

.card:hover {
    border-color: var(--border-hover);
    transform: translateY(-4px);
}

/* ==========================================================================
   Forms
   ========================================================================== */
input, textarea, select {
    font-family: var(--font-body);
    font-size: 0.95rem;
    padding: 1rem 1.25rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    width: 100%;
    transition: all var(--transition-normal);
}

input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: var(--accent-1);
    box-shadow: 0 0 0 3px rgba(0, 212, 170, 0.1);
}

input::placeholder, textarea::placeholder {
    color: var(--text-muted);
}

label {
    display: block;
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

/* ==========================================================================
   Utility Classes
   ========================================================================== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-primary { color: var(--text-primary); }
.text-secondary { color: var(--text-secondary); }
.text-muted { color: var(--text-muted); }
.text-accent { color: var(--accent-1); }

.bg-primary { background: var(--bg-primary); }
.bg-secondary { background: var(--bg-secondary); }
.bg-card { background: var(--bg-card); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mt-5 { margin-top: 3rem; }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }
.mb-5 { margin-bottom: 3rem; }

.hidden { display: none; }
.visible { display: block; }

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 1100px) {
    h1 { font-size: 3.25rem; }
    h2 { font-size: 2.5rem; }

    .container {
        padding: 0 2rem;
    }

    .section {
        padding: 5rem 2rem;
    }
}

@media (max-width: 768px) {
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
    h3 { font-size: 1.35rem; }

    .container {
        padding: 0 1.5rem;
    }

    .section {
        padding: 4rem 1.5rem;
    }

    .section-title {
        font-size: 2.25rem;
    }
}

@media (max-width: 480px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }

    .btn {
        padding: 0.875rem 1.5rem;
        font-size: 0.9rem;
    }
}