/**
 * =============================================
 * RENOVARTACOGRAFO.COM - ESTILOS GLOBALES
 * =============================================
 * Versión: 1.0
 * Mobile-first, accesible, profesional
 */

/* ========================================
   CSS Variables
======================================== */
:root {
    /* Colores principales */
    --color-primary: #1e3a5f;
    --color-primary-dark: #152a45;
    --color-primary-light: #2d5a87;
    --color-primary-rgb: 30, 58, 95;
    
    /* Color secundario (acciones positivas) */
    --color-secondary: #27ae60;
    --color-secondary-dark: #1e8449;
    --color-secondary-light: #2ecc71;
    
    /* Colores de estado */
    --color-success: #27ae60;
    --color-warning: #f39c12;
    --color-error: #e74c3c;
    --color-info: #3498db;
    
    /* Grises y neutros */
    --color-text: #333333;
    --color-text-light: #666666;
    --color-text-muted: #999999;
    --color-background: #f8f9fa;
    --color-white: #ffffff;
    --color-border: #e0e0e0;
    --color-border-light: #f0f0f0;
    
    /* Sombras */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.2);
    --shadow-xl: 0 12px 48px rgba(0, 0, 0, 0.25);
    
    /* Bordes redondeados */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    
    /* Transiciones */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Tipografía */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;
    
    /* Espaciado */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Anchos máximos */
    --max-width-sm: 640px;
    --max-width-md: 768px;
    --max-width-lg: 1024px;
    --max-width-xl: 1200px;
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    color: var(--color-text);
    background-color: var(--color-background);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100vh;
}

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

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

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

/* ========================================
   Tipografía
======================================== */
h1, h2, h3, h4, h5, h6 {
    color: var(--color-primary);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

h1 { font-size: var(--font-size-3xl); }
h2 { font-size: var(--font-size-2xl); }
h3 { font-size: var(--font-size-xl); }
h4 { font-size: var(--font-size-lg); }

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

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.text-muted { color: var(--color-text-muted); }
.text-light { color: var(--color-text-light); }
.text-success { color: var(--color-success); }
.text-error { color: var(--color-error); }
.text-warning { color: var(--color-warning); }

/* ========================================
   Layout
======================================== */
.container {
    width: 100%;
    max-width: var(--max-width-lg);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

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

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

/* ========================================
   Header
======================================== */
.header {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: var(--color-white);
    padding: var(--spacing-md) var(--spacing-lg);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-md);
}

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

.logo {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-white);
    letter-spacing: -0.5px;
}

.logo span {
    color: var(--color-secondary-light);
}

.header-contact {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.header-contact a {
    color: var(--color-white);
    opacity: 0.9;
    font-size: var(--font-size-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.header-contact a:hover {
    opacity: 1;
    color: var(--color-white);
}

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

.hero h1 {
    color: var(--color-white);
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-md);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.hero p {
    font-size: var(--font-size-lg);
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto var(--spacing-xl);
}

.hero-badges {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.badge {
    background: rgba(255, 255, 255, 0.15);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    backdrop-filter: blur(10px);
    text-align: center;
}

.badge strong {
    display: block;
    font-size: var(--font-size-lg);
}

.badge span {
    font-size: var(--font-size-sm);
    opacity: 0.9;
}

/* ========================================
   Cards
======================================== */
.card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.card-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
    background: var(--color-primary);
    color: var(--color-white);
}

.card-icon.secondary {
    background: var(--color-secondary);
}

.card h2, .card h3 {
    margin-bottom: var(--spacing-sm);
}

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

.card-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
}

/* ========================================
   Botones
======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    text-align: center;
    text-decoration: none;
    transition: all var(--transition-fast);
    min-height: 48px;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-block {
    display: flex;
    width: 100%;
}

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

.btn-primary:hover:not(:disabled) {
    background: var(--color-primary-dark);
    color: var(--color-white);
    transform: translateY(-2px);
}

.btn-secondary {
    background: var(--color-secondary);
    color: var(--color-white);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--color-secondary-dark);
    color: var(--color-white);
    transform: translateY(-2px);
}

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

.btn-outline:hover:not(:disabled) {
    background: var(--color-primary);
    color: var(--color-white);
}

.btn-ghost {
    background: transparent;
    color: var(--color-text-light);
}

.btn-ghost:hover:not(:disabled) {
    background: var(--color-background);
    color: var(--color-text);
}

.btn-sm {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-sm);
    min-height: 36px;
}

.btn-lg {
    padding: var(--spacing-lg) var(--spacing-2xl);
    font-size: var(--font-size-lg);
    min-height: 56px;
}

/* ========================================
   Formularios
======================================== */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--color-text);
}

.form-label .required {
    color: var(--color-error);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-family: inherit;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    background: var(--color-white);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.1);
}

.form-input.error,
.form-select.error {
    border-color: var(--color-error);
}

.form-input:disabled,
.form-select:disabled {
    background: var(--color-background);
    cursor: not-allowed;
}

.form-hint {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-top: var(--spacing-xs);
}

.form-error {
    font-size: var(--font-size-sm);
    color: var(--color-error);
    margin-top: var(--spacing-xs);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
}

.form-textarea {
    min-height: 120px;
    resize: vertical;
}

/* Checkbox y Radio */
.form-check {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    cursor: pointer;
}

.form-check input {
    width: 20px;
    height: 20px;
    margin-top: 2px;
    cursor: pointer;
}

.form-check-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
}

/* ========================================
   Upload de archivos
======================================== */
.upload-area {
    border: 2px dashed var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    background: var(--color-background);
}

.upload-area:hover {
    border-color: var(--color-primary);
    background: rgba(var(--color-primary-rgb), 0.02);
}

.upload-area.dragover {
    border-color: var(--color-primary);
    background: rgba(var(--color-primary-rgb), 0.05);
}

.upload-area.uploaded {
    border-color: var(--color-success);
    border-style: solid;
    background: rgba(39, 174, 96, 0.05);
}

.upload-area input[type="file"] {
    display: none;
}

.upload-icon {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-muted);
}

.upload-area.uploaded .upload-icon {
    color: var(--color-success);
}

.upload-text {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
}

.upload-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.upload-full {
    grid-column: 1 / -1;
}

/* ========================================
   Precio Display
======================================== */
.price-display {
    background: var(--color-background);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    margin: var(--spacing-xl) 0;
}

.price-display h3 {
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-md);
}

.price-line {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-sm) 0;
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
}

.price-line.total {
    border-top: 2px solid var(--color-primary);
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-primary);
}

.price-tag {
    text-align: center;
    padding-top: var(--spacing-lg);
    margin-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
}

.price-tag .price {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-primary);
}

.price-tag .price-detail {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

/* ========================================
   Progress Steps
======================================== */
.progress-bar {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-lg);
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    position: relative;
}

.progress-bar::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 10%;
    right: 10%;
    height: 2px;
    background: var(--color-border);
    transform: translateY(-50%);
    z-index: 1;
}

.progress-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    z-index: 2;
}

.step-number {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    background: var(--color-border);
    color: var(--color-text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-xs);
    transition: all var(--transition-fast);
}

.step-number.active {
    background: var(--color-primary);
    color: var(--color-white);
}

.step-number.completed {
    background: var(--color-success);
    color: var(--color-white);
}

.step-label {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    text-align: center;
}

.step-label.active {
    color: var(--color-primary);
    font-weight: 600;
}

/* ========================================
   Alerts
======================================== */
.alert {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
}

.alert-success {
    background: rgba(39, 174, 96, 0.1);
    color: var(--color-success);
    border: 1px solid var(--color-success);
}

.alert-error {
    background: rgba(231, 76, 60, 0.1);
    color: var(--color-error);
    border: 1px solid var(--color-error);
}

.alert-warning {
    background: rgba(243, 156, 18, 0.1);
    color: var(--color-warning);
    border: 1px solid var(--color-warning);
}

.alert-info {
    background: rgba(52, 152, 219, 0.1);
    color: var(--color-info);
    border: 1px solid var(--color-info);
}

/* ========================================
   Features Section
======================================== */
.features {
    padding: var(--spacing-3xl) var(--spacing-lg);
    background: var(--color-white);
}

.features h2 {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    max-width: var(--max-width-lg);
    margin: 0 auto;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--color-background);
    border-radius: var(--radius-md);
}

.feature-icon {
    width: 48px;
    height: 48px;
    min-width: 48px;
    background: var(--color-primary);
    color: var(--color-white);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-text h3 {
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-xs);
}

.feature-text p {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    margin: 0;
}

/* ========================================
   Process Steps Section
======================================== */
.process {
    padding: var(--spacing-3xl) var(--spacing-lg);
    background: var(--color-background);
}

.process h2 {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.process-steps {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
    max-width: var(--max-width-lg);
    margin: 0 auto;
}

.process-step {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    background: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.process-step .step-number {
    margin-bottom: 0;
    background: var(--color-primary);
    color: var(--color-white);
}

.step-text h3 {
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-xs);
}

.step-text p {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    margin: 0;
}

/* ========================================
   Trust Section
======================================== */
.trust {
    padding: var(--spacing-xl) var(--spacing-lg);
    background: var(--color-white);
    text-align: center;
}

.trust-items {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    flex-wrap: wrap;
}

.trust-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
}

.trust-icon {
    width: 24px;
    height: 24px;
    background: var(--color-success);
    color: var(--color-white);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xs);
}

/* ========================================
   Footer
======================================== */
.footer {
    background: var(--color-primary);
    color: var(--color-white);
    padding: var(--spacing-2xl) var(--spacing-lg);
}

.footer-content {
    max-width: var(--max-width-lg);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    text-align: center;
}

.footer h3 {
    color: var(--color-white);
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-sm);
}

.footer p,
.footer a {
    color: rgba(255, 255, 255, 0.8);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-xs);
}

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

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-xl);
    margin-top: var(--spacing-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.footer-bottom p {
    font-size: var(--font-size-xs);
    margin: 0;
}

.footer-links {
    margin-top: var(--spacing-sm);
}

.footer-links a {
    margin: 0 var(--spacing-sm);
    font-size: var(--font-size-xs);
}

/* ========================================
   Loading Spinner
======================================== */
.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: var(--radius-full);
    animation: spin 0.8s linear infinite;
}

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

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: var(--spacing-md);
    z-index: 9999;
}

/* ========================================
   Confirmation Page
======================================== */
.confirmation {
    text-align: center;
    padding: var(--spacing-3xl) var(--spacing-lg);
}

.confirmation-icon {
    width: 80px;
    height: 80px;
    background: var(--color-success);
    color: var(--color-white);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    margin: 0 auto var(--spacing-xl);
}

.confirmation h1 {
    color: var(--color-success);
}

.ticket-number {
    background: var(--color-background);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    margin: var(--spacing-xl) 0;
}

.ticket-number .label {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-xs);
}

.ticket-number .number {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-primary);
    font-family: monospace;
}

/* ========================================
   Utilities
======================================== */
.hidden { display: none !important; }
.visible { display: block !important; }
.mt-0 { margin-top: 0 !important; }
.mb-0 { margin-bottom: 0 !important; }
.mt-md { margin-top: var(--spacing-md) !important; }
.mb-md { margin-bottom: var(--spacing-md) !important; }
.mt-lg { margin-top: var(--spacing-lg) !important; }
.mb-lg { margin-bottom: var(--spacing-lg) !important; }
.mt-xl { margin-top: var(--spacing-xl) !important; }
.mb-xl { margin-bottom: var(--spacing-xl) !important; }

/* ========================================
   Responsive - Tablet (600px+)
======================================== */
@media (min-width: 600px) {
    :root {
        --font-size-3xl: 2.25rem;
        --font-size-4xl: 3rem;
    }
    
    .hero h1 {
        font-size: var(--font-size-3xl);
    }
    
    .card-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .form-row {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .process-steps {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-content {
        grid-template-columns: repeat(3, 1fr);
        text-align: left;
    }
}

/* ========================================
   Responsive - Desktop (900px+)
======================================== */
@media (min-width: 900px) {
    .hero {
        padding: var(--spacing-3xl) var(--spacing-xl);
    }
    
    .hero h1 {
        font-size: var(--font-size-4xl);
    }
    
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .process-steps {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .process-step {
        flex-direction: column;
        text-align: center;
    }
    
    .step-text h3,
    .step-text p {
        text-align: center;
    }
}

/* ========================================
   Accessibility
======================================== */
.btn:focus,
.form-input:focus,
.form-select:focus,
a:focus {
    outline: 3px solid rgba(var(--color-primary-rgb), 0.5);
    outline-offset: 2px;
}

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

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ========================================
   Print Styles
======================================== */
@media print {
    .header,
    .footer,
    .btn,
    .no-print {
        display: none !important;
    }
    
    body {
        background: white;
        color: black;
    }
}