/* --- NEXTMEDIA LLC - DESIGN TOKENS --- */
:root {
    /* Color Palette - Tech Inspired */
    --clr-primary: #0a192f;
    /* Deep Dark Blue */
    --clr-primary-light: #112240;
    --clr-primary-lighter: #233554;

    --clr-accent: #64ffda;
    /* Tech Mint / Cyan Accent */
    --clr-accent-hover: #4cd6b8;

    --clr-blue-gradient-start: #0a192f;
    --clr-blue-gradient-end: #020c1b;

    --clr-text-main: #ccd6f6;
    /* Light steel text */
    --clr-text-muted: #8892b0;
    /* Muted steel */
    --clr-text-dark: #0f172a;
    /* For light backgrounds */

    --clr-bg-main: #0a192f;
    /* Dark background */
    --clr-bg-alt: #ffffff;
    /* Clean White background */
    --clr-bg-light-gray: #f8fafc;

    /* Typography */
    --font-heading: 'Inter', system-ui, -apple-system, sans-serif;
    --font-body: 'Inter', system-ui, -apple-system, sans-serif;

    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 2rem;
    --space-lg: 4rem;
    --space-xl: 6rem;

    /* Utilities */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;

    --transition: 0.3s cubic-bezier(0.645, 0.045, 0.355, 1);

    /* Shadows */
    --shadow-soft: 0 10px 30px -15px rgba(2, 12, 27, 0.7);
    --shadow-light: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background-color: var(--clr-bg-alt);
    /* Defaulting to white, we'll use dark mode for specific sections */
    color: var(--clr-text-dark);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

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

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* --- TYPOGRAPHY --- */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--space-sm);
    color: var(--clr-primary);
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    font-weight: 800;
    letter-spacing: -0.02em;
}

h2 {
    font-size: clamp(2rem, 3vw, 2.5rem);
}

h3 {
    font-size: 1.5rem;
}

p {
    margin-bottom: var(--space-sm);
    color: var(--clr-text-muted);
}

/* Theme Modifiers */
.text-light h1,
.text-light h2,
.text-light h3,
.text-light {
    color: var(--clr-text-main);
}

.text-light p {
    color: var(--clr-text-muted);
}

.bg-dark {
    background-color: var(--clr-primary);
    color: var(--clr-text-main);
}

.bg-gradient {
    background: linear-gradient(135deg, var(--clr-blue-gradient-start) 0%, var(--clr-blue-gradient-end) 100%);
    color: var(--clr-text-main);
}

.bg-light {
    background-color: var(--clr-bg-light-gray);
}

/* --- LAYOUT --- */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-sm);
}

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

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

/* --- BUTTONS --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
    border: 1px solid transparent;
}

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

.btn-primary:hover {
    background-color: var(--clr-accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(100, 255, 218, 0.3);
}

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

.btn-outline:hover {
    background-color: rgba(100, 255, 218, 0.1);
    transform: translateY(-2px);
}

.btn-dark {
    background-color: var(--clr-primary);
    color: white;
}

.btn-dark:hover {
    background-color: var(--clr-primary-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-light);
}

/* --- HEADER / NAVIGATION --- */
header {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

header.scrolled {
    box-shadow: var(--shadow-light);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 90px;
    transition: height var(--transition);
}

header.scrolled .nav-container {
    height: 70px;
}

.logo {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--clr-primary);
    letter-spacing: -1px;
}

.logo span {
    color: var(--clr-accent);
    /* For light bg, cyan might be hard to read, let's use primary color but maybe lighter */
    color: #2563eb;
}

.bg-dark .logo,
.bg-gradient .logo {
    color: white;
}

.bg-dark .logo span,
.bg-gradient .logo span {
    color: var(--clr-accent);
}

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

.nav-links a {
    color: var(--clr-primary-lighter);
    font-weight: 600;
    font-size: 0.95rem;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: #2563eb;
    transition: var(--transition);
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.nav-links a:hover,
.nav-links a.active {
    color: #2563eb;
}

.mobile-menu-btn {
    display: none;
    background: transparent;
    border: none;
    cursor: pointer;
    width: 30px;
    height: 20px;
    position: relative;
    z-index: 1001;
}

.mobile-menu-btn span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--clr-primary);
    position: absolute;
    transition: var(--transition);
}

.mobile-menu-btn span:nth-child(1) {
    top: 0;
}

.mobile-menu-btn span:nth-child(2) {
    top: 50%;
    transform: translateY(-50%);
}

.mobile-menu-btn span:nth-child(3) {
    bottom: 0;
}

.mobile-menu-btn.open span:nth-child(1) {
    top: 50%;
    transform: translateY(-50%) rotate(45deg);
}

.mobile-menu-btn.open span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.open span:nth-child(3) {
    bottom: 50%;
    transform: translateY(50%) rotate(-45deg);
}

/* --- HERO SECTION --- */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 90px;
    overflow: hidden;
}

.hero::after {
    content: '';
    position: absolute;
    right: -100px;
    top: -100px;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(100, 255, 218, 0.05) 0%, rgba(10, 25, 47, 0) 70%);
    border-radius: 50%;
    z-index: 0;
}

.hero-content {
    max-width: 800px;
    position: relative;
    z-index: 1;
}

.hero-content p {
    font-size: 1.2rem;
    max-width: 600px;
    margin-bottom: var(--space-md);
    color: var(--clr-text-muted);
}

.hero-buttons {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

/* --- SERVICES & FEATURES GRID --- */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-md);
}

.card {
    background: var(--clr-bg-alt);
    padding: var(--space-md);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-light);
    border: 1px solid rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

.bg-dark .card,
.bg-gradient .card {
    background: var(--clr-primary-light);
    border-color: rgba(255, 255, 255, 0.05);
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-soft);
}

.bg-dark .card:hover,
.bg-gradient .card:hover {
    border-color: var(--clr-accent);
}

.icon {
    font-size: 2.5rem;
    margin-bottom: var(--space-sm);
    color: #2563eb;
}

.bg-dark .icon,
.bg-gradient .icon {
    color: var(--clr-accent);
}

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

.card p {
    color: var(--clr-text-muted);
    font-size: 0.95rem;
    margin-bottom: 0;
}

/* --- FOOTER --- */
footer {
    background-color: #020c1b;
    color: var(--clr-text-muted);
    padding: var(--space-xl) 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-lg);
    margin-bottom: var(--space-lg);
}

.footer-col h4 {
    color: var(--clr-text-main);
    margin-bottom: var(--space-sm);
}

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

.footer-col a {
    color: var(--clr-text-muted);
}

.footer-col a:hover {
    color: var(--clr-accent);
}

.footer-bottom {
    text-align: center;
    padding: var(--space-md) 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* --- ANIMATIONS --- */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: 0.8s all ease;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* --- RESPONSIVE --- */
@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        height: 100vh;
        width: 80%;
        max-width: 400px;
        background-color: var(--clr-primary-light);
        flex-direction: column;
        justify-content: center;
        transition: var(--transition);
        box-shadow: -10px 0 30px rgba(0, 0, 0, 0.5);
    }

    .nav-links.open {
        right: 0;
    }

    .nav-links a {
        color: var(--clr-text-main);
        font-size: 1.25rem;
    }

    .nav-links a:hover,
    .nav-links a.active {
        color: var(--clr-accent);
    }

    .nav-links a::after {
        background-color: var(--clr-accent);
    }

    .mobile-menu-btn {
        display: block;
    }

    .mobile-menu-btn span {
        background-color: var(--clr-primary);
    }

    .mobile-menu-btn.open span {
        background-color: var(--clr-accent);
    }

    .hero {
        padding-top: 70px;
    }
}