/* ============================================
   FUNDACIÓN AFRICANO - STYLES
   Modern, Responsive, Hopeful Design
   ============================================ */

/* CSS Variables */
:root {
    /* Colors */
    --color-primary: #1a365d;
    --color-primary-dark: #0f2744;
    --color-primary-light: #2c5282;
    --color-secondary: #276749;
    --color-secondary-dark: #1c4532;
    --color-secondary-light: #38a169;
    --color-accent: #d69e2e;
    --color-accent-light: #ecc94b;
    --color-white: #ffffff;
    --color-gray-50: #f7fafc;
    --color-gray-100: #edf2f7;
    --color-gray-200: #e2e8f0;
    --color-gray-300: #cbd5e0;
    --color-gray-400: #a0aec0;
    --color-gray-500: #718096;
    --color-gray-600: #4a5568;
    --color-gray-700: #2d3748;
    --color-gray-800: #1a202c;
    --color-gray-900: #171923;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    --gradient-secondary: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-secondary-dark) 100%);
    --gradient-accent: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-light) 100%);
    --gradient-hero: linear-gradient(135deg, rgba(26, 54, 93, 0.95) 0%, rgba(39, 103, 73, 0.9) 100%);
    
    /* Typography */
    --font-heading: 'Playfair Display', Georgia, serif;
    --font-body: 'Poppins', -apple-system, BlinkMacSystemFont, sans-serif;
    
    /* Spacing */
    --section-padding: 6rem;
    --container-max: 1200px;
    --container-padding: 1.5rem;
    
    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-glow: 0 0 20px rgba(214, 158, 46, 0.3);
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

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

body {
    font-family: var(--font-body);
    font-weight: 400;
    line-height: 1.6;
    color: var(--color-gray-700);
    background-color: var(--color-white);
    overflow-x: hidden;
}

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

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

ul {
    list-style: none;
}

button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
}

input, textarea {
    font-family: inherit;
    font-size: inherit;
}

/* Container */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* Section Base */
.section {
    padding: var(--section-padding) 0;
}

/* ============================================
   NAVIGATION
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: transparent;
    transition: all var(--transition-base);
    padding: 1rem 0;
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-md);
    padding: 0.75rem 0;
}

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

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-img {
    height: 50px;
    width: auto;
    transition: transform var(--transition-base);
}

.logo-img:hover {
    transform: scale(1.05);
}

.logo-text {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-white);
    transition: color var(--transition-base);
}

.navbar.scrolled .logo-text {
    color: var(--color-primary);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 0.5rem;
    z-index: 1001;
}

.hamburger {
    display: block;
    width: 25px;
    height: 3px;
    background: var(--color-white);
    border-radius: 3px;
    transition: all var(--transition-base);
}

.navbar.scrolled .hamburger {
    background: var(--color-primary);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-white);
    position: relative;
    padding: 0.5rem 0;
    transition: color var(--transition-base);
}

.navbar.scrolled .nav-link {
    color: var(--color-gray-700);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: width var(--transition-base);
}

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

.nav-link:hover {
    color: var(--color-accent);
}

.nav-cta {
    background: var(--gradient-accent);
    color: var(--color-white) !important;
    padding: 0.6rem 1.25rem;
    border-radius: var(--radius-full);
    font-weight: 600;
}

.nav-cta::after {
    display: none;
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding: 6rem 1.5rem 4rem;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: -2;
}

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: var(--gradient-hero);
    z-index: -1;
}

.hero-content {
    max-width: 900px;
    text-align: center;
    color: var(--color-white);
    animation: fadeInUp 1s ease-out;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.hero-title {
    font-family: var(--font-heading);
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.hero-title .highlight {
    color: var(--color-accent-light);
}

.hero-quote {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-left: 4px solid var(--color-accent);
    padding: 1.5rem 2rem;
    margin: 2rem auto;
    max-width: 700px;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    position: relative;
}

.hero-quote p {
    font-family: var(--font-heading);
    font-size: clamp(1.1rem, 2.5vw, 1.5rem);
    font-style: italic;
    line-height: 1.6;
}

.quote-icon {
    font-size: 2rem;
    color: var(--color-accent);
    line-height: 1;
}

.hero-subtitle {
    font-size: 1.1rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto 2.5rem;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
    cursor: pointer;
}

.btn-primary {
    background: var(--gradient-accent);
    color: var(--color-white);
    box-shadow: 0 4px 15px rgba(214, 158, 46, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.15);
    color: var(--color-white);
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.25);
    border-color: var(--color-white);
    transform: translateY(-3px);
}

.btn-outline {
    background: transparent;
    color: var(--color-secondary);
    border: 2px solid var(--color-secondary);
}

.btn-outline:hover {
    background: var(--color-secondary);
    color: var(--color-white);
    transform: translateY(-2px);
}

.btn-full {
    width: 100%;
}

.btn-icon {
    width: 18px;
    height: 18px;
    transition: transform var(--transition-base);
}

.btn:hover .btn-icon {
    transform: translateX(4px);
}

/* Hero Scroll Indicator */
.hero-scroll {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-white);
    font-size: 0.85rem;
    opacity: 0.7;
    animation: bounce 2s infinite;
}

.scroll-indicator {
    width: 24px;
    height: 40px;
    border: 2px solid currentColor;
    border-radius: 12px;
    position: relative;
}

.scroll-indicator::after {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: currentColor;
    border-radius: 2px;
    animation: scrollDown 2s infinite;
}

/* ============================================
   SECTION HEADERS
   ============================================ */
.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 4rem;
}

.section-badge {
    display: inline-block;
    background: rgba(39, 103, 73, 0.1);
    color: var(--color-secondary);
    padding: 0.4rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 1rem;
}

.section-title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1.3;
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--color-gray-500);
}

/* ============================================
   ABOUT SECTION
   ============================================ */
.about {
    background: var(--color-gray-50);
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.about-card {
    background: var(--color-white);
    padding: 2.5rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    text-align: center;
}

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

.about-icon {
    width: 70px;
    height: 70px;
    background: var(--gradient-secondary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.about-icon svg {
    width: 32px;
    height: 32px;
    color: var(--color-white);
}

.about-card h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--color-primary);
    margin-bottom: 1rem;
}

.about-card p {
    color: var(--color-gray-600);
    line-height: 1.7;
}

/* Stats */
.about-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 2rem;
    text-align: center;
    padding: 3rem;
    background: var(--gradient-primary);
    border-radius: var(--radius-xl);
    color: var(--color-white);
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.stat-number {
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-accent-light);
}

.stat-suffix {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-accent-light);
}

.stat-label {
    font-size: 0.95rem;
    opacity: 0.9;
    margin-top: 0.5rem;
}

/* ============================================
   CENTERS SECTION
   ============================================ */
.centers {
    background: var(--color-white);
}

.centers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 3rem;
}

.center-card {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-base);
}

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

.center-image {
    position: relative;
    height: 250px;
    overflow: hidden;
}

.center-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.center-card:hover .center-image img {
    transform: scale(1.05);
}

.center-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--gradient-primary);
    color: var(--color-white);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 600;
}

.center-badge--women {
    background: linear-gradient(135deg, #9c4221 0%, #c05621 100%);
}

.center-content {
    padding: 2rem;
}

.center-content h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--color-primary);
    margin-bottom: 1rem;
}

.center-content > p {
    color: var(--color-gray-600);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.services-list h4 {
    font-size: 1rem;
    color: var(--color-primary);
    margin-bottom: 1rem;
}

.services-list ul {
    margin-bottom: 1.5rem;
}

.services-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    color: var(--color-gray-600);
    font-size: 0.95rem;
}

.services-list li svg {
    width: 20px;
    height: 20px;
    color: var(--color-secondary);
    flex-shrink: 0;
    margin-top: 2px;
}

/* ============================================
   PROCESS SECTION
   ============================================ */
.process {
    background: var(--color-gray-50);
}

.process-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
}

.process-card {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    position: relative;
}

.process-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.process-number {
    position: absolute;
    top: 1rem;
    left: 1rem;
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-accent);
    opacity: 0.3;
    line-height: 1;
    z-index: 1;
}

.process-image {
    height: 160px;
    overflow: hidden;
}

.process-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.process-icon {
    height: 160px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-secondary);
}

.process-icon svg {
    width: 60px;
    height: 60px;
    color: var(--color-white);
}

.process-content {
    padding: 1.5rem;
}

.process-content h3 {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    color: var(--color-primary);
    margin-bottom: 0.75rem;
}

.process-content p {
    font-size: 0.9rem;
    color: var(--color-gray-600);
    line-height: 1.6;
}

/* ============================================
   DONATIONS SECTION
   ============================================ */
.donations {
    background: var(--gradient-primary);
    color: var(--color-white);
}

.donations .section-badge {
    background: rgba(255, 255, 255, 0.15);
    color: var(--color-white);
}

.donations .section-title {
    color: var(--color-white);
}

.donations-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.donations-text {
    font-size: 1.1rem;
    opacity: 0.9;
    margin-bottom: 2rem;
}

.donation-impact {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.impact-item {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.impact-amount {
    display: block;
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-accent-light);
    margin-bottom: 0.5rem;
}

.impact-desc {
    font-size: 0.85rem;
    opacity: 0.9;
}

/* Accounts Card */
.accounts-card {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    padding: 2rem;
    color: var(--color-gray-700);
    box-shadow: var(--shadow-xl);
}

.accounts-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--color-gray-100);
}

.accounts-header svg {
    width: 40px;
    height: 40px;
    color: var(--color-secondary);
}

.accounts-header h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--color-primary);
}

.account-item {
    background: var(--color-gray-50);
    border-radius: var(--radius-lg);
    padding: 1.25rem;
    margin-bottom: 1rem;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 1rem;
}

.account-bank {
    display: flex;
    flex-direction: column;
}

.bank-name {
    font-weight: 600;
    color: var(--color-primary);
}

.account-type {
    font-size: 0.8rem;
    color: var(--color-gray-500);
}

.account-details {
    flex: 1;
}

.account-holder {
    font-size: 0.9rem;
    color: var(--color-gray-600);
}

.account-number {
    font-family: 'Courier New', monospace;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-secondary);
    letter-spacing: 1px;
}

.copy-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1rem;
    background: var(--color-secondary);
    color: var(--color-white);
    border-radius: var(--radius-md);
    font-size: 0.85rem;
    font-weight: 500;
    transition: all var(--transition-base);
}

.copy-btn:hover {
    background: var(--color-secondary-dark);
    transform: translateY(-2px);
}

.copy-btn svg {
    width: 16px;
    height: 16px;
}

.copy-btn.copied {
    background: var(--color-accent);
}

.copy-message {
    text-align: center;
    padding: 0.75rem;
    background: var(--color-secondary-light);
    color: var(--color-white);
    border-radius: var(--radius-md);
    margin-top: 1rem;
    opacity: 0;
    transform: translateY(-10px);
    transition: all var(--transition-base);
}

.copy-message.show {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   CONTACT SECTION
   ============================================ */
.contact {
    background: var(--color-white);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 4rem;
    align-items: start;
}

.contact-text {
    font-size: 1.1rem;
    color: var(--color-gray-600);
    margin-bottom: 2rem;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: rgba(39, 103, 73, 0.1);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-icon svg {
    width: 24px;
    height: 24px;
    color: var(--color-secondary);
}

.contact-data {
    display: flex;
    flex-direction: column;
}

.contact-label {
    font-size: 0.85rem;
    color: var(--color-gray-500);
}

.contact-data a,
.contact-data span:last-child {
    font-weight: 500;
    color: var(--color-primary);
}

.contact-data a:hover {
    color: var(--color-secondary);
}

/* Contact Form */
.contact-form-wrapper {
    background: var(--color-gray-50);
    border-radius: var(--radius-xl);
    padding: 2.5rem;
    position: relative;
}

.contact-form h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--color-primary);
    margin-bottom: 1.5rem;
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-gray-700);
    margin-bottom: 0.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 2px solid var(--color-gray-200);
    border-radius: var(--radius-md);
    background: var(--color-white);
    transition: all var(--transition-base);
    font-size: 1rem;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-secondary);
    box-shadow: 0 0 0 3px rgba(39, 103, 73, 0.1);
}

.form-group input.error,
.form-group textarea.error {
    border-color: #e53e3e;
}

.error-message {
    display: block;
    font-size: 0.8rem;
    color: #e53e3e;
    margin-top: 0.25rem;
    min-height: 1rem;
}

/* Radio Group - Selector de Tipo de Ayuda Mejorado */
.radio-group {
    display: flex;
    gap: 1rem;
}

.radio-label {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    cursor: pointer;
    position: relative;
    padding: 1.5rem 1rem;
    background: var(--color-white);
    border: 2px solid var(--color-gray-200);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    min-height: 120px;
}

.radio-label:hover {
    border-color: var(--color-secondary-light);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.radio-label input[type="radio"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
    cursor: pointer;
}

/* Icono del selector */
.radio-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
    background: var(--color-gray-100);
}

.radio-icon svg {
    width: 24px;
    height: 24px;
    color: var(--color-gray-500);
    transition: all var(--transition-base);
}

/* Texto del selector */
.radio-text {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-gray-600);
    transition: all var(--transition-base);
}

/* Estado seleccionado */
.radio-label input[type="radio"]:checked ~ .radio-icon {
    background: var(--color-secondary);
    transform: scale(1.1);
}

.radio-label input[type="radio"]:checked ~ .radio-icon svg {
    color: var(--color-white);
}

.radio-label input[type="radio"]:checked ~ .radio-text {
    color: var(--color-secondary);
}

.radio-label input[type="radio"]:checked {
    border-color: var(--color-secondary);
    background: rgba(39, 103, 73, 0.05);
}

.radio-label:has(input[type="radio"]:checked) {
    border-color: var(--color-secondary);
    background: rgba(39, 103, 73, 0.05);
    box-shadow: 0 0 0 3px rgba(39, 103, 73, 0.15);
}

/* Indicador de selección */
.radio-check {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--color-gray-200);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transform: scale(0);
    transition: all var(--transition-base);
}

.radio-check svg {
    width: 12px;
    height: 12px;
    color: var(--color-white);
}

.radio-label:has(input[type="radio"]:checked) .radio-check {
    opacity: 1;
    transform: scale(1);
    background: var(--color-secondary);
}

/* Foco para accesibilidad */
.radio-label input[type="radio"]:focus {
    outline: none;
}

.radio-label:has(input[type="radio"]:focus) {
    box-shadow: 0 0 0 3px rgba(39, 103, 73, 0.25);
}

/* Estado de error */
.radio-label.radio-error {
    border-color: #e53e3e;
    animation: shake 0.5s ease;
}

.radio-label.radio-error .radio-icon {
    background: rgba(229, 62, 62, 0.1);
}

.radio-label.radio-error .radio-icon svg {
    color: #e53e3e;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

/* Responsive para móviles */
@media (max-width: 480px) {
    .radio-group {
        flex-direction: column;
    }
    
    .radio-label {
        flex-direction: row;
        justify-content: flex-start;
        padding: 1rem;
        min-height: auto;
    }
    
    .radio-icon {
        width: 40px;
        height: 40px;
    }
}

/* Form Success */
.form-success {
    position: absolute;
    inset: 0;
    background: var(--color-white);
    border-radius: var(--radius-xl);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2.5rem;
    text-align: center;
    opacity: 0;
    visibility: hidden;
    transform: scale(0.95);
    transition: all var(--transition-base);
}

.form-success.show {
    opacity: 1;
    visibility: visible;
    transform: scale(1);
}

.success-icon {
    width: 80px;
    height: 80px;
    background: var(--color-secondary-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.success-icon svg {
    width: 40px;
    height: 40px;
    color: var(--color-white);
}

.form-success h4 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--color-primary);
    margin-bottom: 0.5rem;
}

.form-success p {
    color: var(--color-gray-600);
    margin-bottom: 1.5rem;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: var(--color-gray-900);
    color: var(--color-gray-300);
    padding: 4rem 0 2rem;
}

.footer-wrapper {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-logo {
    height: 80px;
    width: auto;
    margin-bottom: 0.5rem;
}

.footer-tagline {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    color: var(--color-accent);
    margin-bottom: 1rem;
}

.footer-description {
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.footer-social {
    display: flex;
    gap: 1rem;
}

.social-link {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
}

.social-link:hover {
    background: var(--color-secondary);
    transform: translateY(-3px);
}

.social-link svg {
    width: 20px;
    height: 20px;
    color: var(--color-white);
}

.footer-links h4 {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    color: var(--color-white);
    margin-bottom: 1.5rem;
}

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    font-size: 0.95rem;
    transition: color var(--transition-base);
}

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

.footer-message {
    display: flex;
    align-items: center;
}

.message-box {
    background: rgba(39, 103, 73, 0.2);
    border: 1px solid rgba(39, 103, 73, 0.3);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    text-align: center;
}

.message-box svg {
    width: 32px;
    height: 32px;
    color: var(--color-accent);
    margin-bottom: 0.75rem;
}

.message-box p {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-style: italic;
    color: var(--color-white);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    font-size: 0.9rem;
}

.footer-credit {
    margin-top: 0.5rem;
    color: var(--color-accent);
}

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

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

@keyframes scrollDown {
    0% {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
    100% {
        opacity: 0;
        transform: translateX(-50%) translateY(15px);
    }
}

/* Scroll Reveal Animation */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

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

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 1024px) {
    :root {
        --section-padding: 4rem;
    }
    
    .donations-wrapper,
    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .footer-wrapper {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    /* Navigation Mobile */
    .nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background: var(--color-white);
        flex-direction: column;
        justify-content: center;
        gap: 2rem;
        padding: 2rem;
        transition: right var(--transition-base);
        box-shadow: var(--shadow-xl);
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-link {
        color: var(--color-gray-700) !important;
        font-size: 1.1rem;
    }
    
    .nav-cta {
        background: var(--gradient-accent);
        color: var(--color-white) !important;
    }
    
    /* Hamburger Animation */
    .nav-toggle.active .hamburger:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
        background: var(--color-primary);
    }
    
    .nav-toggle.active .hamburger:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active .hamburger:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
        background: var(--color-primary);
    }
    
    /* Hero */
    .hero {
        padding-top: 5rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 280px;
    }
    
    /* Centers */
    .centers-grid {
        grid-template-columns: 1fr;
    }
    
    /* Process */
    .process-grid {
        grid-template-columns: 1fr;
    }
    
    /* Donations */
    .donation-impact {
        grid-template-columns: 1fr;
    }
    
    /* Stats */
    .about-stats {
        grid-template-columns: 1fr 1fr;
        gap: 1.5rem;
        padding: 2rem;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    /* Footer */
    .footer-wrapper {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-social {
        justify-content: center;
    }
    
    .footer-message {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    :root {
        --container-padding: 1rem;
        --section-padding: 3rem;
    }
    
    .logo-text {
        display: none;
    }
    
    .hero-quote {
        padding: 1rem 1.25rem;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
    }
    
    .about-card {
        padding: 1.5rem;
    }
    
    .contact-form-wrapper {
        padding: 1.5rem;
    }
    
    .radio-group {
        flex-direction: column;
        gap: 0.75rem;
    }
    
    .account-item {
        flex-direction: column;
        text-align: center;
    }
    
    .copy-btn {
        width: 100%;
        justify-content: center;
    }
}

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

/* Focus Styles */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

/* Print Styles */
@media print {
    .navbar,
    .hero-scroll,
    .footer-social {
        display: none;
    }
    
    .hero {
        min-height: auto;
        padding: 2rem 0;
    }
    
    .section {
        padding: 2rem 0;
    }
}