/**
 * CALCULADORA FORJADOS3D - Estilos Globais
 * Design moderno, minimalista e futurista
 * Paleta: Preto, Cinza, Laranja Metálico
 */

/* ===================================================== */
/* RESET E VARIÁVEIS CSS */
/* ===================================================== */

:root {
    /* Paleta Forjados3D - Modo Claro */
    --bg-primary: #f5f5f5;
    --bg-secondary: #ffffff;
    --bg-card: #ffffff;
    --text-primary: #1a1a1a;
    --text-secondary: #666666;
    --text-muted: #999999;
    
    --accent-orange: #ff6b35;
    --accent-orange-dark: #e85a2a;
    --accent-orange-light: #ff8559;
    
    --border-color: #e0e0e0;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);
    
    --success: #10b981;
    --error: #ef4444;
    --warning: #f59e0b;
    --info: #3b82f6;
    
    /* Transições */
    --transition-fast: 0.2s ease;
    --transition-smooth: 0.3s ease;
    
    /* Bordas */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
}

/* Modo Escuro */
[data-theme="dark"] {
    --bg-primary: #0a0a0a;
    --bg-secondary: #141414;
    --bg-card: #1a1a1a;
    --text-primary: #f5f5f5;
    --text-secondary: #b3b3b3;
    --text-muted: #737373;
    
    --border-color: #2a2a2a;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
}

* {
    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;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    transition: background var(--transition-smooth), color var(--transition-smooth);
}

/* ===================================================== */
/* TIPOGRAFIA */
/* ===================================================== */

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

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

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

/* ===================================================== */
/* CONTAINER E LAYOUT */
/* ===================================================== */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.container-fluid {
    padding: 0 20px;
}

/* ===================================================== */
/* HEADER / NAVBAR */
/* ===================================================== */

.navbar {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-sm);
}

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

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.navbar-brand span {
    color: var(--accent-orange);
}

.navbar-nav {
    display: flex;
    gap: 2rem;
    align-items: center;
    list-style: none;
}

.navbar-nav a {
    color: var(--text-secondary);
    font-weight: 500;
    transition: color var(--transition-fast);
}

.navbar-nav a:hover {
    color: var(--accent-orange);
}

/* ===================================================== */
/* BOTÕES */
/* ===================================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-align: center;
    text-decoration: none;
    outline: none;
}

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

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

.btn-primary:hover:not(:disabled) {
    background: var(--accent-orange-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover:not(:disabled) {
    border-color: var(--accent-orange);
    color: var(--accent-orange);
}

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

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

.btn-sm {
    padding: 8px 16px;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 16px 32px;
    font-size: 1.125rem;
}

.btn-icon {
    padding: 12px;
    border-radius: 50%;
}

/* ===================================================== */
/* CARDS */
/* ===================================================== */

.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-smooth);
}

.card:hover {
    box-shadow: var(--shadow-md);
}

.card-header {
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.card-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.card-subtitle {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.card-body {
    margin-bottom: 1rem;
}

.card-footer {
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 1rem;
}

/* ===================================================== */
/* FORMULÁRIOS */
/* ===================================================== */

.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--bg-card);
    color: var(--text-primary);
    font-size: 1rem;
    transition: all var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--accent-orange);
    box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.1);
}

.form-textarea {
    resize: vertical;
    min-height: 100px;
}

.form-error {
    color: var(--error);
    font-size: 0.875rem;
    margin-top: 0.5rem;
}

/* ===================================================== */
/* THEME TOGGLE */
/* ===================================================== */

.theme-toggle {
    position: relative;
    width: 60px;
    height: 30px;
    background: var(--border-color);
    border-radius: 15px;
    cursor: pointer;
    transition: background var(--transition-fast);
}

.theme-toggle::before {
    content: '';
    position: absolute;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: white;
    top: 3px;
    left: 3px;
    transition: transform var(--transition-fast);
}

[data-theme="dark"] .theme-toggle {
    background: var(--accent-orange);
}

[data-theme="dark"] .theme-toggle::before {
    transform: translateX(30px);
}

/* ===================================================== */
/* TABELAS */
/* ===================================================== */

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

.table th,
.table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.table th {
    font-weight: 600;
    color: var(--text-primary);
    background: var(--bg-secondary);
}

.table tr:hover {
    background: var(--bg-secondary);
}

/* ===================================================== */
/* ALERTAS */
/* ===================================================== */

.alert {
    padding: 1rem 1.25rem;
    border-radius: var(--radius-sm);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 12px;
}

.alert-success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
    border-left: 4px solid var(--success);
}

.alert-error {
    background: rgba(239, 68, 68, 0.1);
    color: var(--error);
    border-left: 4px solid var(--error);
}

.alert-warning {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning);
    border-left: 4px solid var(--warning);
}

.alert-info {
    background: rgba(59, 130, 246, 0.1);
    color: var(--info);
    border-left: 4px solid var(--info);
}

/* ===================================================== */
/* GRID SYSTEM */
/* ===================================================== */

.row {
    display: flex;
    flex-wrap: wrap;
    margin: 0 -10px;
}

.col {
    flex: 1;
    padding: 0 10px;
}

.col-2 { flex: 0 0 16.666%; max-width: 16.666%; }
.col-3 { flex: 0 0 25%; max-width: 25%; }
.col-4 { flex: 0 0 33.333%; max-width: 33.333%; }
.col-6 { flex: 0 0 50%; max-width: 50%; }
.col-8 { flex: 0 0 66.666%; max-width: 66.666%; }
.col-12 { flex: 0 0 100%; max-width: 100%; }

/* ===================================================== */
/* UTILITÁRIOS */
/* ===================================================== */

.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--text-muted); }
.text-primary { color: var(--accent-orange); }
.text-success { color: var(--success); }
.text-error { color: var(--error); }

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.p-1 { padding: 0.5rem; }
.p-2 { padding: 1rem; }
.p-3 { padding: 1.5rem; }
.p-4 { padding: 2rem; }

.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.gap-3 { gap: 1.5rem; }

/* ===================================================== */
/* RESPONSIVIDADE */
/* ===================================================== */

@media (max-width: 768px) {
    html { font-size: 14px; }
    
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.5rem; }
    
    .navbar-nav {
        gap: 1rem;
    }
    
    .row {
        flex-direction: column;
    }
    
    .col,
    .col-2,
    .col-3,
    .col-4,
    .col-6,
    .col-8 {
        flex: 0 0 100%;
        max-width: 100%;
    }
    
    .card {
        padding: 1rem;
    }
}

@media (max-width: 480px) {
    .container,
    .container-fluid {
        padding: 0 15px;
    }
    
    .btn {
        width: 100%;
    }
    
    .card-footer {
        flex-direction: column;
    }
}

/* ===================================================== */
/* ANIMAÇÕES */
/* ===================================================== */

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.5s ease;
}

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

.loading {
    animation: spin 1s linear infinite;
}