/**
 * Calculadora de Ticket Médio
 * Desenvolvido por B20 Conteúdo Digital
 * https://www.b20.com.br
 */

/* ===== CSS Variables ===== */
:root {
    --primary-color: #833AB4;
    --secondary-color: #FD1D1D;
    --accent-1: #F77737;
    --accent-2: #FCAF45;
    --accent-3: #FFDC80;
    
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-card: #ffffff;
    
    --text-primary: #212529;
    --text-secondary: #6c757d;
    --text-light: #adb5bd;
    
    --border-color: #dee2e6;
    --border-radius: 12px;
    --border-radius-sm: 8px;
    
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    --transition: all 0.3s ease;
    
    --bottom-nav-height: 70px;
    --header-height: 80px;
}

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

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-secondary);
    padding-bottom: var(--bottom-nav-height);
    min-height: 100vh;
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: var(--spacing-sm);
}

h1 { font-size: 1.75rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.25rem; }

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

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

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

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

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.header-logo {
    width: 60px;
    height: 60px;
    object-fit: contain;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.1);
    padding: 0.5rem;
    backdrop-filter: blur(10px);
    transition: var(--transition);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.header-logo:hover {
    transform: scale(1.05);
    background: rgba(255, 255, 255, 0.15);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.header-text {
    flex: 1;
}

.header-content h1 {
    margin: 0;
    font-size: 1.5rem;
}

.header-subtitle {
    margin: 0;
    font-size: 0.875rem;
    opacity: 0.9;
}

/* ===== Main Content ===== */
.main-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-md) var(--spacing-sm);
}

.container {
    width: 100%;
}

/* ===== Content Sections ===== */
.content-section {
    display: none;
    animation: fadeIn 0.3s ease;
}

.content-section.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== Cards ===== */
.welcome-card,
.form-card,
.filters-card,
.sales-list-card,
.goals-list-card,
.chart-container {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    box-shadow: var(--shadow-sm);
}

.welcome-card {
    background: linear-gradient(135deg, var(--accent-2) 0%, var(--accent-3) 100%);
    color: var(--text-primary);
    text-align: center;
}

.welcome-card h2 {
    margin-bottom: var(--spacing-xs);
}

/* ===== Stats Grid ===== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.stat-card {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.stat-icon {
    font-size: 2rem;
}

.stat-info {
    display: flex;
    flex-direction: column;
}

.stat-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-value {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--primary-color);
}

/* ===== Chart ===== */
.chart-container {
    position: relative;
    height: 300px;
}

.chart-container canvas {
    max-height: 250px;
}

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

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
    color: var(--text-primary);
}

.form-group label i {
    color: var(--primary-color);
    margin-right: var(--spacing-xs);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
    background: var(--bg-primary);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(131, 58, 180, 0.1);
}

.form-group input:invalid:not(:placeholder-shown),
.form-group select:invalid:not(:placeholder-shown) {
    border-color: var(--secondary-color);
}

.form-group input.invalid,
.form-group select.invalid,
.form-group textarea.invalid {
    border-color: var(--secondary-color);
    background-color: rgba(253, 29, 29, 0.05);
}

.error-message {
    display: block;
    color: var(--secondary-color);
    font-size: 0.875rem;
    margin-top: var(--spacing-xs);
    min-height: 1.25rem;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--border-radius-sm);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    min-height: 44px;
    min-width: 44px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

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

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

.btn-delete {
    background: transparent;
    color: var(--secondary-color);
    padding: 0.5rem;
    border-radius: 50%;
    min-width: 36px;
    min-height: 36px;
}

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

/* ===== Filters ===== */
.filters-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.filter-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-size: 0.875rem;
    font-weight: 500;
}

.filter-group select {
    width: 100%;
    padding: 0.5rem;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    font-size: 0.875rem;
    background: var(--bg-primary);
}

.custom-date-range {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
}

.custom-date-range input {
    flex: 1;
    padding: 0.5rem;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-sm);
}

/* ===== Sales List ===== */
.list-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.sales-list,
.goals-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.sale-item,
.goal-item {
    background: var(--bg-secondary);
    border-radius: var(--border-radius-sm);
    padding: var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
}

.sale-item:hover,
.goal-item:hover {
    transform: translateX(4px);
    box-shadow: var(--shadow-sm);
}

.sale-info,
.goal-info {
    flex: 1;
}

.sale-value,
.goal-target {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

.sale-details,
.goal-details {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.sale-details span,
.goal-details span {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.goal-progress {
    width: 100%;
    height: 8px;
    background: var(--border-color);
    border-radius: 4px;
    margin-top: var(--spacing-xs);
    overflow: hidden;
}

.goal-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color) 0%, var(--accent-1) 100%);
    transition: width 0.3s ease;
}

.goal-status {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 500;
    margin-top: var(--spacing-xs);
}

.goal-status.active {
    background: rgba(131, 58, 180, 0.1);
    color: var(--primary-color);
}

.goal-status.completed {
    background: rgba(40, 167, 69, 0.1);
    color: #28a745;
}

.goal-status.expired {
    background: rgba(253, 29, 29, 0.1);
    color: var(--secondary-color);
}

/* ===== Empty State ===== */
.empty-state {
    text-align: center;
    padding: var(--spacing-xl) var(--spacing-md);
    color: var(--text-secondary);
}

.empty-state i {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

.empty-state p {
    margin-bottom: var(--spacing-xs);
}

.empty-state-hint {
    font-size: 0.875rem;
    color: var(--text-light);
}

/* ===== FAQ ===== */
.faq-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.faq-item {
    background: var(--bg-card);
    border-radius: var(--border-radius-sm);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.faq-question {
    width: 100%;
    padding: var(--spacing-md);
    background: transparent;
    border: none;
    text-align: left;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
    min-height: 44px;
}

.faq-question:hover {
    background: var(--bg-secondary);
}

.faq-icon {
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--primary-color);
    transition: transform 0.3s ease;
}

.faq-question[aria-expanded="true"] .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    padding: 0 var(--spacing-md) var(--spacing-md);
    color: var(--text-secondary);
}

.faq-answer[hidden] {
    display: none;
}

.faq-answer p,
.faq-answer ul,
.faq-answer ol {
    margin-bottom: var(--spacing-sm);
}

.faq-answer ul,
.faq-answer ol {
    padding-left: var(--spacing-md);
}

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

/* ===== Bottom Navigation ===== */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--bg-card);
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
    display: flex;
    justify-content: space-around;
    align-items: center;
    height: var(--bottom-nav-height);
    z-index: 1000;
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.25rem;
    padding: var(--spacing-xs);
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
    flex: 1;
    min-height: 44px;
    min-width: 44px;
}

.nav-item i {
    font-size: 1.5rem;
}

.nav-item span {
    font-size: 0.75rem;
}

.nav-item:hover,
.nav-item.active {
    color: var(--primary-color);
}

.nav-item.active {
    font-weight: 600;
}

/* ===== Toast Notification ===== */
.toast {
    position: fixed;
    top: calc(var(--header-height) + var(--spacing-sm));
    right: var(--spacing-sm);
    background: var(--text-primary);
    color: white;
    padding: var(--spacing-md);
    border-radius: var(--border-radius-sm);
    box-shadow: var(--shadow-lg);
    transform: translateX(400px);
    transition: transform 0.3s ease;
    z-index: 2000;
    max-width: 300px;
}

.toast.show {
    transform: translateX(0);
}

.toast.success {
    background: #28a745;
}

.toast.error {
    background: var(--secondary-color);
}

.toast.warning {
    background: var(--accent-2);
}

/* ===== Footer ===== */
.app-footer {
    background: var(--bg-card);
    padding: var(--spacing-lg) var(--spacing-sm);
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-top: var(--spacing-xl);
    border-top: 1px solid var(--border-color);
}

.app-footer p {
    margin-bottom: var(--spacing-xs);
}

.b20-link {
    color: var(--primary-color);
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
}

.b20-link:hover {
    text-decoration: underline;
    transform: scale(1.05);
    display: inline-block;
}

/* ===== Responsive Design ===== */
@media (max-width: 767px) {
    .header-logo {
        width: 50px;
        height: 50px;
        padding: 0.25rem;
    }
    
    .header-content {
        gap: var(--spacing-sm);
    }
    
    .header-content h1 {
        font-size: 1.25rem;
    }
    
    .header-subtitle {
        font-size: 0.75rem;
    }
}

@media (min-width: 768px) {
    html {
        font-size: 18px;
    }
    
    .header-logo {
        width: 70px;
        height: 70px;
    }
    
    .header-content h1 {
        font-size: 1.75rem;
    }
    
    .stats-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .filters-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .chart-container {
        height: 400px;
    }
    
    .chart-container canvas {
        max-height: 350px;
    }
}

@media (min-width: 1024px) {
    .main-content {
        padding: var(--spacing-lg) var(--spacing-md);
    }
    
    .sale-item,
    .goal-item {
        padding: var(--spacing-lg);
    }
}

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

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

/* ===== Print Styles ===== */
@media print {
    .bottom-nav,
    .app-header,
    .btn,
    .form-card {
        display: none;
    }
    
    .main-content {
        padding: 0;
    }
    
    .content-section {
        display: block !important;
    }
}