/* =========================================
   ADNOW - BASE STYLES
   ========================================= */

:root {
    /* Colors - Fixed for contrast */
    --color-primary: #0A66FF;
    --color-primary-dark: #084BDB;
    --color-accent: #047857;
    --color-accent-dark: #065F46;

    --color-heading: #0F172A;
    --color-body: #475569;
    --color-muted: #64748B;

    --color-bg: #F8FAFC;
    --color-surface: #FFFFFF;
    --color-border: #E2E8F0;

    --color-error: #DC2626;
    --color-success: #047857;

    /* Typography */
    --font-heading: 'Poppins', sans-serif;
    --font-body: 'Open Sans', sans-serif;

    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;

    /* Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);

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

    /* Z-Index */
    --z-overlay: 100;
    --z-nav: 200;
    --z-header: 300;
    --z-modal: 400;

    /* Layout */
    --header-height: 70px;
}

*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-body);
    background-color: var(--color-bg);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    padding-top: var(--header-height);
}

main {
    flex: 1;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    color: var(--color-heading);
    line-height: 1.3;
    margin-bottom: var(--space-sm);
}

h1 {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
}

h2 {
    font-size: clamp(1.5rem, 4vw, 2.25rem);
}

h3 {
    font-size: clamp(1.25rem, 3vw, 1.5rem);
}

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

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

a:hover {
    color: var(--color-primary-dark);
}

a:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

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

ul,
ol {
    margin-left: var(--space-md);
}

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

@media (min-width: 768px) {
    .wrapper {
        padding: 0 var(--space-lg);
    }
}

/* CTA Buttons */
.cta-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    padding: 0.75rem 1.5rem;
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 600;
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
}

.cta-button:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.cta-primary {
    background-color: var(--color-primary);
    color: var(--color-surface);
    border-color: var(--color-primary);
}

.cta-primary:hover {
    background-color: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    color: var(--color-surface);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.cta-accent {
    background-color: var(--color-accent);
    color: var(--color-surface);
    border-color: var(--color-accent);
}

.cta-accent:hover {
    background-color: var(--color-accent-dark);
    border-color: var(--color-accent-dark);
    color: var(--color-surface);
    transform: translateY(-2px);
}

.cta-outline {
    background-color: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.cta-outline:hover {
    background-color: var(--color-primary);
    color: var(--color-surface);
}

.cta-large {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

/* Section Intro */
.section-intro {
    text-align: center;
    margin-bottom: var(--space-xl);
}

.section-intro h2 {
    margin-bottom: var(--space-xs);
}

.section-intro p {
    color: var(--color-body);
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto;
}

/* Page Hero */
.page-hero {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: var(--color-surface);
    padding: var(--space-2xl) var(--space-sm);
    text-align: center;
}

.page-hero h1 {
    color: var(--color-surface);
    margin-bottom: var(--space-xs);
}

.page-hero p {
    opacity: 0.9;
    font-size: 1.125rem;
    margin-bottom: 0;
}

/* Loader */
.loader {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-2xl);
    color: var(--color-body);
    grid-column: 1 / -1;
}

.loader-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* Utilities */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.accent-text {
    color: var(--color-surface);
}