/**
 * Octopus Comparador - Estilos principales
 * Tema: Blanco/Azul moderno, estilo app de energia
 */

/* =============================================================================
   CSS Variables - Theme
   ============================================================================= */

:root {
    /* Colores principales - Azul energia */
    --color-primary: #0066CC;
    --color-primary-light: #3399FF;
    --color-primary-dark: #004C99;
    --color-primary-pale: #E6F2FF;

    /* Colores secundarios */
    --color-accent: #00B8D4;
    --color-accent-light: #4DD0E1;

    /* Fondos */
    --color-bg: #F5F7FA;
    --color-bg-alt: #FFFFFF;
    --color-surface: #FFFFFF;

    /* Texto */
    --color-text: #1A1A2E;
    --color-text-muted: #5A6070;
    --color-text-light: #8A8FA0;

    /* Bordes */
    --color-border: #E2E5EB;
    --color-border-light: #F0F2F5;

    /* Estados */
    --color-success: #00C853;
    --color-success-light: #E8F5E9;
    --color-error: #F44336;
    --color-error-light: #FFEBEE;
    --color-warning: #FF9800;
    --color-warning-light: #FFF3E0;
    --color-info: #2196F3;

    /* Sombras */
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 12px 32px rgba(0, 0, 0, 0.16);

    /* Tipografia */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-base: 16px;
    --line-height: 1.6;

    /* 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;

    /* Bordes */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* Transiciones */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 350ms ease;
}

/* =============================================================================
   Reset & Base
   ============================================================================= */

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

html {
    font-size: var(--font-size-base);
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-family);
    line-height: var(--line-height);
    color: var(--color-text);
    background-color: var(--color-bg);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img, picture, video, canvas, svg {
    display: block;
    max-width: 100%;
}

input, button, textarea, select {
    font: inherit;
}

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

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

/* =============================================================================
   Layout
   ============================================================================= */

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.main {
    flex: 1;
}

/* =============================================================================
   Header
   ============================================================================= */

.header {
    background: var(--color-surface);
    box-shadow: var(--shadow-sm);
    padding: var(--spacing-md) 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--color-primary);
    font-weight: 700;
    font-size: 1.25rem;
    text-decoration: none;
}

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

.logo svg {
    width: 36px;
    height: 36px;
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.logo-text .brand {
    font-weight: 700;
    color: var(--color-primary);
}

.logo-text .tagline {
    font-size: 0.7rem;
    color: var(--color-text-muted);
    font-weight: 400;
}

.nav {
    display: flex;
    gap: var(--spacing-sm);
}

.nav-link {
    color: var(--color-text-muted);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
    font-weight: 500;
}

.nav-link:hover {
    color: var(--color-primary);
    background: var(--color-primary-pale);
}

/* =============================================================================
   Footer
   ============================================================================= */

.footer {
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-xl) 0;
    margin-top: auto;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--color-text-muted);
    font-size: 0.875rem;
    font-weight: 500;
}

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

.footer-text {
    text-align: center;
    color: var(--color-text-light);
    font-size: 0.875rem;
}

/* =============================================================================
   Buttons
   ============================================================================= */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: var(--transition-normal);
    font-size: 1rem;
}

.btn:hover {
    text-decoration: none;
    transform: translateY(-1px);
}

.btn:active {
    transform: translateY(0);
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
    box-shadow: 0 4px 14px rgba(0, 102, 204, 0.35);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-primary) 100%);
    box-shadow: 0 6px 20px rgba(0, 102, 204, 0.45);
    color: white;
}

.btn-secondary {
    background: var(--color-bg);
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover {
    background: var(--color-surface);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

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

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

.btn-success {
    background: linear-gradient(135deg, var(--color-success) 0%, #00A846 100%);
    color: white;
    box-shadow: 0 4px 14px rgba(0, 200, 83, 0.35);
}

.btn-success:hover {
    box-shadow: 0 6px 20px rgba(0, 200, 83, 0.45);
    color: white;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
    border-radius: var(--radius-md);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-block {
    width: 100%;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.btn svg {
    width: 20px;
    height: 20px;
}

/* =============================================================================
   Cards
   ============================================================================= */

.card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
}

.card-body {
    padding: var(--spacing-xl);
}

.card-header {
    padding: var(--spacing-lg) var(--spacing-xl);
    border-bottom: 1px solid var(--color-border-light);
}

.card-footer {
    padding: var(--spacing-lg) var(--spacing-xl);
    border-top: 1px solid var(--color-border-light);
    background: var(--color-bg);
}

/* =============================================================================
   Forms
   ============================================================================= */

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
    color: var(--color-text);
    font-size: 0.9375rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-surface);
    color: var(--color-text);
    transition: var(--transition-fast);
    font-size: 1rem;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px var(--color-primary-pale);
}

.form-group input::placeholder {
    color: var(--color-text-light);
}

.form-hint {
    display: block;
    margin-top: var(--spacing-xs);
    font-size: 0.8125rem;
    color: var(--color-text-muted);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.form-actions {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.checkbox-group {
    display: flex;
    align-items: flex-start;
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    cursor: pointer;
    font-size: 0.9375rem;
}

.checkbox-label input[type="checkbox"] {
    width: 20px;
    height: 20px;
    margin-top: 2px;
    accent-color: var(--color-primary);
}

.form-error {
    background: var(--color-error-light);
    color: var(--color-error);
    padding: var(--spacing-md);
    border-radius: var(--radius-sm);
    margin-top: var(--spacing-md);
    font-size: 0.9375rem;
}

/* =============================================================================
   Alerts
   ============================================================================= */

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

.alert-icon {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
}

.alert-error {
    background: var(--color-error-light);
    color: var(--color-error);
}

.alert-success {
    background: var(--color-success-light);
    color: #1B5E20;
}

.alert-warning {
    background: var(--color-warning-light);
    color: #E65100;
}

.alert-info {
    background: var(--color-primary-pale);
    color: var(--color-primary-dark);
}

.alert ul {
    margin: 0;
    padding-left: var(--spacing-lg);
}

/* =============================================================================
   Hero Section
   ============================================================================= */

.hero {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    padding: var(--spacing-3xl) 0;
    text-align: center;
    color: white;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.5;
}

.hero .container {
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: clamp(2rem, 6vw, 3rem);
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

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

.hero-subtitle {
    font-size: 1.125rem;
    opacity: 0.9;
    margin-bottom: var(--spacing-xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.7;
}

.hero-incentive {
    margin-bottom: var(--spacing-xl);
}

.incentive-badge {
    display: inline-flex;
    flex-direction: column;
    background: white;
    padding: var(--spacing-lg) var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.incentive-amount {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--color-success);
    line-height: 1;
}

.incentive-text {
    font-size: 0.9375rem;
    color: var(--color-text-muted);
    margin-top: var(--spacing-xs);
}

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

.hero .btn-primary {
    background: white;
    color: var(--color-primary);
    box-shadow: var(--shadow-md);
}

.hero .btn-primary:hover {
    background: var(--color-primary-pale);
    color: var(--color-primary-dark);
}

.hero .btn-outline {
    border-color: white;
    color: white;
}

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

/* =============================================================================
   Features Section
   ============================================================================= */

.features {
    padding: var(--spacing-3xl) 0;
}

.section-title {
    text-align: center;
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

.section-subtitle {
    text-align: center;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.feature-card {
    background: var(--color-surface);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
}

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

.feature-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 72px;
    height: 72px;
    background: var(--color-primary-pale);
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-lg);
    color: var(--color-primary);
}

.feature-icon svg {
    width: 32px;
    height: 32px;
}

.feature-card h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.feature-card p {
    color: var(--color-text-muted);
    font-size: 0.9375rem;
    line-height: 1.6;
}

/* =============================================================================
   Pricing Section
   ============================================================================= */

.pricing-info {
    background: var(--color-surface);
    padding: var(--spacing-3xl) 0;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.pricing-card {
    background: var(--color-bg);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    text-align: center;
    transition: var(--transition-fast);
}

.pricing-card:hover {
    background: var(--color-primary-pale);
}

.pricing-label {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.pricing-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-primary);
}

.pricing-note {
    font-size: 0.75rem;
    color: var(--color-text-light);
    margin-top: var(--spacing-xs);
}

.pricing-legal {
    text-align: center;
    font-size: 0.8125rem;
    color: var(--color-text-light);
    max-width: 600px;
    margin: 0 auto;
}

/* =============================================================================
   CTA Section
   ============================================================================= */

.cta-section {
    padding: var(--spacing-3xl) 0;
}

.cta-card {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    padding: var(--spacing-3xl) var(--spacing-xl);
    border-radius: var(--radius-xl);
    text-align: center;
    color: white;
    position: relative;
    overflow: hidden;
}

.cta-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
}

.cta-card h2 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    position: relative;
}

.cta-card p {
    opacity: 0.9;
    margin-bottom: var(--spacing-xl);
    font-size: 1.0625rem;
    position: relative;
}

.cta-card .btn {
    position: relative;
}

.cta-card .btn-primary {
    background: white;
    color: var(--color-primary);
    box-shadow: var(--shadow-md);
}

.cta-card .btn-primary:hover {
    background: var(--color-primary-pale);
}

/* =============================================================================
   Scan Page
   ============================================================================= */

.scan-page {
    padding: var(--spacing-xl) 0;
    min-height: calc(100vh - 200px);
}

.scan-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.scan-header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
}

.scan-header p {
    color: var(--color-text-muted);
}

.scan-area {
    background: var(--color-surface);
    border-radius: var(--radius-xl);
    min-height: 350px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
    overflow: hidden;
    position: relative;
    box-shadow: var(--shadow-lg);
}

.scan-placeholder {
    text-align: center;
    padding: var(--spacing-xl);
}

.scan-icon {
    color: var(--color-primary-pale);
    margin-bottom: var(--spacing-md);
}

.scan-icon svg {
    width: 80px;
    height: 80px;
}

.scan-placeholder h3 {
    font-size: 1.125rem;
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
}

.scan-placeholder p {
    color: var(--color-text-muted);
    font-size: 0.9375rem;
}

.scanner-container {
    width: 100%;
    height: 100%;
    min-height: 350px;
    position: relative;
    background: #000;
}

.scanner-container video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.scanner-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
}

.scanner-frame {
    width: 220px;
    height: 220px;
    position: relative;
}

.scanner-frame::before,
.scanner-frame::after {
    content: '';
    position: absolute;
    width: 40px;
    height: 40px;
    border-color: var(--color-primary);
    border-style: solid;
}

.scanner-frame::before {
    top: 0;
    left: 0;
    border-width: 4px 0 0 4px;
    border-radius: 8px 0 0 0;
}

.scanner-frame::after {
    top: 0;
    right: 0;
    border-width: 4px 4px 0 0;
    border-radius: 0 8px 0 0;
}

.scanner-frame-bottom {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 40px;
}

.scanner-frame-bottom::before,
.scanner-frame-bottom::after {
    content: '';
    position: absolute;
    width: 40px;
    height: 40px;
    border-color: var(--color-primary);
    border-style: solid;
}

.scanner-frame-bottom::before {
    bottom: 0;
    left: 0;
    border-width: 0 0 4px 4px;
    border-radius: 0 0 0 8px;
}

.scanner-frame-bottom::after {
    bottom: 0;
    right: 0;
    border-width: 0 4px 4px 0;
    border-radius: 0 0 8px 0;
}

.scanner-line {
    position: absolute;
    top: 0;
    left: 10%;
    right: 10%;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
    animation: scanLine 2s ease-in-out infinite;
}

@keyframes scanLine {
    0%, 100% { top: 10%; opacity: 0; }
    50% { top: 90%; opacity: 1; }
}

.scan-error {
    text-align: center;
    padding: var(--spacing-xl);
}

.error-icon {
    color: var(--color-error);
    margin-bottom: var(--spacing-md);
}

.error-icon svg {
    width: 64px;
    height: 64px;
}

.scan-processing {
    text-align: center;
    padding: var(--spacing-xl);
}

.spinner {
    width: 56px;
    height: 56px;
    border: 4px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto var(--spacing-md);
}

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

.scan-actions {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.scan-help {
    background: var(--color-surface);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
}

.scan-help h3 {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

.scan-help ul {
    margin: var(--spacing-md) 0;
    padding-left: var(--spacing-lg);
}

.scan-help li {
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-muted);
}

.help-image {
    max-width: 300px;
    margin: var(--spacing-lg) auto;
    border-radius: var(--radius-md);
}

.scan-alternative {
    text-align: center;
    padding: var(--spacing-xl);
    background: var(--color-primary-pale);
    border-radius: var(--radius-lg);
}

.scan-alternative p {
    margin-bottom: var(--spacing-md);
    color: var(--color-text-muted);
}

/* =============================================================================
   Result Page
   ============================================================================= */

.result-page {
    padding: var(--spacing-xl) 0;
}

.result-summary {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.result-summary h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--spacing-lg);
}

.total-card {
    background: var(--color-surface);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    display: inline-block;
    min-width: 280px;
}

.total-main {
    margin-bottom: var(--spacing-lg);
}

.total-label {
    display: block;
    font-size: 0.9375rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-xs);
}

.total-amount {
    font-size: 3rem;
    font-weight: 800;
    color: var(--color-primary);
    line-height: 1;
}

.incentive-highlight {
    background: linear-gradient(135deg, var(--color-success) 0%, #00A846 100%);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    color: white;
}

.incentive-badge-large .incentive-text {
    display: block;
    font-size: 0.875rem;
    opacity: 0.9;
}

.incentive-badge-large .incentive-final {
    display: block;
    font-size: 2.25rem;
    font-weight: 800;
    margin: var(--spacing-sm) 0;
}

.incentive-badge-large .incentive-savings {
    display: block;
    font-size: 0.875rem;
    opacity: 0.85;
}

.period-info {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-lg);
}

.period-info-item {
    text-align: center;
}

.period-info-label {
    display: block;
    font-size: 0.75rem;
    color: var(--color-text-light);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-xs);
}

.period-info-value {
    font-weight: 600;
    color: var(--color-text);
}

/* Breakdown */
.breakdown-section {
    margin-bottom: var(--spacing-xl);
}

.breakdown-section h2 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

.breakdown-card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.breakdown-group {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border-light);
}

.breakdown-group:last-child {
    border-bottom: none;
}

.breakdown-group h3 {
    font-size: 0.8125rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
}

.breakdown-group.highlight {
    background: var(--color-primary-pale);
}

.breakdown-group.total {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
}

.breakdown-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
}

.breakdown-row .label {
    color: var(--color-text-muted);
    font-size: 0.9375rem;
}

.breakdown-row .value {
    font-weight: 600;
    font-family: 'SF Mono', Monaco, 'Courier New', monospace;
    font-size: 0.9375rem;
}

.breakdown-row.subtotal {
    border-top: 1px solid var(--color-border-light);
    padding-top: var(--spacing-md);
    margin-top: var(--spacing-sm);
}

.breakdown-row.subtotal .label,
.breakdown-row.subtotal .value {
    font-weight: 600;
    color: var(--color-text);
}

.breakdown-row.total-row {
    font-size: 1.125rem;
}

.breakdown-row.total-row .label,
.breakdown-row.total-row .value {
    color: white;
    font-weight: 700;
}

.breakdown-row.incentive-row .value.highlight {
    color: #A5D6A7;
}

/* Contact Form */
.contact-section {
    background: var(--color-surface);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    margin-bottom: var(--spacing-xl);
    box-shadow: var(--shadow-md);
}

.contact-section h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.contact-section > p {
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-xl);
}

.contact-success {
    background: var(--color-surface);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
    text-align: center;
    margin-bottom: var(--spacing-xl);
    box-shadow: var(--shadow-md);
}

.success-icon {
    width: 80px;
    height: 80px;
    background: var(--color-success-light);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
}

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

.contact-success h2 {
    color: var(--color-success);
    margin-bottom: var(--spacing-sm);
    font-size: 1.5rem;
}

.contact-success p {
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-xl);
}

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

/* =============================================================================
   Manual Input Page
   ============================================================================= */

.manual-page {
    padding: var(--spacing-xl) 0;
}

.manual-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.manual-header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
}

.manual-header p {
    color: var(--color-text-muted);
}

.manual-form {
    background: var(--color-surface);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    max-width: 600px;
    margin: 0 auto var(--spacing-xl);
    box-shadow: var(--shadow-md);
}

.form-section {
    margin-bottom: var(--spacing-xl);
}

.form-section h2 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--color-primary-pale);
    color: var(--color-text);
}

.section-hint {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-md);
}

.manual-help {
    background: var(--color-primary-pale);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    max-width: 600px;
    margin: 0 auto;
}

.manual-help h3 {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-primary-dark);
}

.help-grid {
    display: grid;
    gap: var(--spacing-md);
}

.help-item h4 {
    font-size: 0.9375rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
}

.help-item p {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

/* =============================================================================
   Legal Pages
   ============================================================================= */

.legal-page {
    padding: var(--spacing-xl) 0;
    max-width: 800px;
    margin: 0 auto;
}

.legal-page h1 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.legal-updated {
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-xl);
}

.legal-content section {
    margin-bottom: var(--spacing-xl);
}

.legal-content h2 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

.legal-content h3 {
    font-size: 1rem;
    font-weight: 600;
    margin: var(--spacing-md) 0 var(--spacing-sm);
}

.legal-content p {
    margin-bottom: var(--spacing-md);
    color: var(--color-text-muted);
    line-height: 1.7;
}

.legal-content ul {
    padding-left: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.legal-content li {
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-muted);
}

.legal-back {
    text-align: center;
    margin-top: var(--spacing-xl);
}

/* =============================================================================
   Error Page
   ============================================================================= */

.error-page {
    padding: var(--spacing-3xl) 0;
    text-align: center;
}

.error-content {
    max-width: 500px;
    margin: 0 auto;
}

.error-page .error-icon {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
}

.error-page .error-icon svg {
    width: 80px;
    height: 80px;
}

.error-page h1 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.error-message {
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-xl);
}

.error-actions {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
}

/* =============================================================================
   Steps / Progress
   ============================================================================= */

.steps {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
}

.step-number {
    width: 40px;
    height: 40px;
    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: 1rem;
}

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

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

.step-label {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    font-weight: 500;
}

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

/* =============================================================================
   Modal
   ============================================================================= */

.modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
}

.modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    background: var(--color-surface);
    border-radius: var(--radius-xl);
    max-width: 500px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg) var(--spacing-xl);
    border-bottom: 1px solid var(--color-border);
}

.modal-header h3 {
    font-size: 1.25rem;
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--color-text-muted);
    padding: var(--spacing-xs);
    line-height: 1;
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
}

.modal-close:hover {
    background: var(--color-bg);
    color: var(--color-text);
}

.modal-body {
    padding: var(--spacing-xl);
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-md);
    padding: var(--spacing-lg) var(--spacing-xl);
    border-top: 1px solid var(--color-border);
    background: var(--color-bg);
}

/* =============================================================================
   Table Styles
   ============================================================================= */

.table-container {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    overflow-x: auto;
    box-shadow: var(--shadow-sm);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th,
.data-table td {
    padding: var(--spacing-md) var(--spacing-lg);
    text-align: left;
    border-bottom: 1px solid var(--color-border-light);
}

.data-table th {
    background: var(--color-bg);
    font-weight: 600;
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.data-table tbody tr {
    transition: var(--transition-fast);
}

.data-table tbody tr:hover {
    background: var(--color-primary-pale);
}

.data-table tbody tr:last-child td {
    border-bottom: none;
}

/* =============================================================================
   Badge / Tag
   ============================================================================= */

.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-primary {
    background: var(--color-primary-pale);
    color: var(--color-primary);
}

.badge-success {
    background: var(--color-success-light);
    color: #1B5E20;
}

.badge-error {
    background: var(--color-error-light);
    color: var(--color-error);
}

.badge-warning {
    background: var(--color-warning-light);
    color: #E65100;
}

/* =============================================================================
   Utility Classes
   ============================================================================= */

.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }
.text-muted { color: var(--color-text-muted); }
.text-small { font-size: 0.875rem; }
.text-primary { color: var(--color-primary); }
.text-success { color: var(--color-success); }

.font-bold { font-weight: 700; }
.font-semibold { font-weight: 600; }

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mt-4 { margin-top: var(--spacing-xl); }
.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.mb-4 { margin-bottom: var(--spacing-xl); }

.hidden { display: none; }

/* =============================================================================
   Print Styles
   ============================================================================= */

@media print {
    .header,
    .footer,
    .scan-actions,
    .result-actions,
    .contact-section,
    .btn {
        display: none !important;
    }

    body {
        background: white;
        color: black;
    }

    .result-page {
        padding: 0;
    }

    .breakdown-card,
    .total-card {
        box-shadow: none;
        border: 1px solid #ccc;
    }
}

/* =============================================================================
   Responsive
   ============================================================================= */

@media (max-width: 768px) {
    :root {
        --spacing-xl: 1.5rem;
        --spacing-2xl: 2rem;
        --spacing-3xl: 2.5rem;
    }

    .nav {
        display: none;
    }

    .hero {
        padding: var(--spacing-2xl) 0;
    }

    .hero-title {
        font-size: 1.75rem;
    }

    .hero-actions {
        flex-direction: column;
        padding: 0 var(--spacing-md);
    }

    .hero-actions .btn {
        width: 100%;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .form-actions {
        flex-direction: column;
    }

    .form-actions .btn {
        width: 100%;
    }

    .result-actions {
        flex-direction: column;
    }

    .result-actions .btn {
        width: 100%;
    }

    .period-info {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .steps {
        gap: var(--spacing-sm);
    }

    .step-label {
        font-size: 0.75rem;
    }

    .total-amount {
        font-size: 2.5rem;
    }

    .incentive-badge-large .incentive-final {
        font-size: 1.75rem;
    }

    .scan-area {
        min-height: 300px;
    }

    .scanner-container {
        min-height: 300px;
    }

    .scanner-frame {
        width: 180px;
        height: 180px;
    }
}

@media (max-width: 480px) {
    .pricing-grid {
        grid-template-columns: 1fr;
    }

    .incentive-badge {
        padding: var(--spacing-md) var(--spacing-lg);
    }

    .incentive-amount {
        font-size: 2rem;
    }

    .manual-form,
    .contact-section {
        padding: var(--spacing-lg);
    }

    .breakdown-group {
        padding: var(--spacing-md);
    }
}