/* Base CSS - Custom Properties and Foundation Styles */

/* ============================================
   CSS Custom Properties (Color Palette - WCAG AA Compliant)
   ============================================ */
:root {
    /* Primary Colors */
    --color-primary: #2D6A4F;           /* Forest Green - trust, safety */
    --color-primary-dark: #1B4332;      /* Headers, contrast */
    --color-secondary: #BC6C25;         /* Warm Amber - warmth, nourishment */

    /* Background Colors */
    --color-background: #FEFAE0;        /* Warm Cream - soft, inviting */
    --color-background-alt: #FAEDCD;    /* Cards, sections */

    /* Text Colors */
    --color-text: #283618;              /* Dark Olive - readable */
    --color-text-light: #40531B;        /* Secondary text */

    /* Semantic Colors */
    --color-error: #9B2226;             /* Accessible red */
    --color-success: #2D6A4F;           /* Same as primary */
    --color-focus: #0077B6;             /* Focus ring for a11y */

    /* Typography */
    --font-family-base: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    --font-size-base: 1rem;
    --font-size-sm: 0.875rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.5rem;
    --font-size-2xl: 2rem;
    --font-size-3xl: 2.5rem;
    --line-height-base: 1.6;
    --line-height-tight: 1.3;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;

    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;

    /* Container widths */
    --container-max: 1200px;
    --container-narrow: 720px;
}

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

html {
    font-size: 100%;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family-base);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--color-text);
    background-color: var(--color-background);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

main {
    flex: 1;
}

/* ============================================
   Skip Link (Accessibility)
   ============================================ */
.skip-link {
    position: absolute;
    top: -100px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-primary-dark);
    color: white;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    z-index: 1000;
    text-decoration: none;
    font-weight: 600;
}

.skip-link:focus {
    top: var(--spacing-md);
    outline: 3px solid var(--color-focus);
    outline-offset: 2px;
}

/* ============================================
   Typography
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: var(--line-height-tight);
    color: var(--color-primary-dark);
}

h1 {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-lg);
}

h2 {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-md);
}

h3 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
}

p {
    margin-bottom: var(--spacing-md);
}

a {
    color: var(--color-primary);
    text-decoration: underline;
    text-underline-offset: 2px;
    transition: color var(--transition-fast);
}

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

a:focus {
    outline: 3px solid var(--color-focus);
    outline-offset: 2px;
}

ul, ol {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-xl);
}

li {
    margin-bottom: var(--spacing-xs);
}

address {
    font-style: normal;
    line-height: var(--line-height-base);
}

/* ============================================
   Layout - Container
   ============================================ */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--spacing-md);
    padding-right: var(--spacing-md);
}

.container-narrow {
    max-width: var(--container-narrow);
}

/* ============================================
   Header
   ============================================ */
.site-header {
    background-color: var(--color-primary-dark);
    padding: var(--spacing-md) 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: white;
    font-size: var(--font-size-lg);
    font-weight: 700;
    text-decoration: none;
}

.logo:hover {
    color: var(--color-background-alt);
}

.logo:focus {
    outline: 3px solid var(--color-focus);
    outline-offset: 4px;
}

.logo-icon {
    width: 32px;
    height: 32px;
    flex-shrink: 0;
}

.nav-links {
    display: flex;
    gap: var(--spacing-lg);
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-links a {
    color: white;
    text-decoration: none;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    transition: background-color var(--transition-fast);
}

.nav-links a:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
}

.nav-links a:focus {
    outline: 3px solid var(--color-focus);
    outline-offset: 2px;
}

.nav-cta {
    background-color: var(--color-secondary);
    font-weight: 600;
}

.nav-cta:hover {
    background-color: #a85a1f !important;
}

/* ============================================
   Footer
   ============================================ */
.site-footer {
    background-color: var(--color-primary-dark);
    color: white;
    padding: var(--spacing-xl) 0;
    margin-top: auto;
}

.footer-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    text-align: center;
}

.site-footer p {
    margin-bottom: var(--spacing-sm);
}

.site-footer a {
    color: var(--color-background-alt);
}

.site-footer a:hover {
    color: white;
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
    padding: var(--spacing-3xl) var(--spacing-md);
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    color: white;
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-lg);
}

.hero-subtitle {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-xl);
    opacity: 0.95;
}

/* ============================================
   Sections
   ============================================ */
.info-section,
.faq-section,
.cta-section,
.form-section,
.success-section {
    padding: var(--spacing-3xl) var(--spacing-md);
}

.info-section {
    background-color: var(--color-background);
}

.faq-section {
    background-color: var(--color-background-alt);
}

.cta-section {
    background-color: var(--color-primary);
    color: white;
    text-align: center;
}

.cta-section h2 {
    color: white;
}

.cta-section p {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-xl);
}

/* ============================================
   Steps Grid
   ============================================ */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.step-card {
    background: white;
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    text-align: center;
}

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background-color: var(--color-primary);
    color: white;
    font-size: var(--font-size-xl);
    font-weight: 700;
    border-radius: 50%;
    margin-bottom: var(--spacing-md);
}

.step-card h3 {
    color: var(--color-primary-dark);
}

.step-card p {
    color: var(--color-text-light);
    margin-bottom: 0;
}

.step-card.step-card-full {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    margin-top: var(--spacing-2xl);
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    border-left: 4px solid var(--color-primary);
    text-align: left;
}

.step-card.step-card-full .notice-icon {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    color: var(--color-primary);
    margin-top: 2px;
}

.step-card.step-card-full p {
    margin: 0;
}

/* ============================================
   Privacy Banner
   ============================================ */
.privacy-banner {
    background-color: var(--color-primary-dark);
    color: white;
    padding: var(--spacing-sm) var(--spacing-md);
    text-align: center;
}

.privacy-banner p {
    margin: 0;
    font-size: var(--font-size-sm);
}