/**
 * ForensiQ — Estilos CSS (Mobile-First)
 *
 * Design pensado para uso no terreno:
 * - Ecrã pequeno (smartphone) como dispositivo primário
 * - Botões grandes para uso com luvas
 * - Contraste elevado para uso em exteriores
 * - Uma mão só quando possível
 *
 * Paleta:
 * --primary:   #1a237e (azul escuro — autoridade, confiança)
 * --secondary:  #0d47a1 (azul médio)
 * --accent:    #ff6f00 (laranja — alertas, CTAs)
 * --success:   #2e7d32 (verde)
 * --danger:    #c62828 (vermelho)
 * --bg:        #f5f5f5
 * --surface:   #ffffff
 * --text:      #212121
 * --text-light: #757575
 */

/* ============================================================
   RESET & BASE
   ============================================================ */

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

:root {
    --primary: #1a237e;
    --primary-light: #3949ab;
    --secondary: #0d47a1;
    --accent: #ff6f00;
    --success: #2e7d32;
    --danger: #c62828;
    --warning: #f57f17;
    --bg: #f5f5f5;
    --surface: #ffffff;
    --text: #212121;
    --text-light: #757575;
    --border: #e0e0e0;
    --radius: 8px;
    --radius-lg: 12px;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.16);
    --transition: 0.2s ease;
    --min-touch: 48px; /* Mínimo recomendado para touch targets (WCAG) */
}

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto,
                 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.5;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

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

.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--primary);
    color: #ffffff;
    padding: 0 16px;
    height: 56px;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow);
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 8px;
}

.navbar-logo {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: var(--accent);
    color: #ffffff;
    font-weight: 700;
    font-size: 0.875rem;
    border-radius: 6px;
}

.navbar-title {
    font-weight: 600;
    font-size: 1.125rem;
    letter-spacing: 0.5px;
}

.navbar-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.navbar-user {
    font-size: 0.875rem;
    opacity: 0.9;
}

/* ============================================================
   CONTAINER
   ============================================================ */

.container {
    width: 100%;
    max-width: 600px;
    margin: 0 auto;
    padding: 16px;
}

/* ============================================================
   BUTTONS — Grandes para uso com luvas
   ============================================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: var(--min-touch);
    padding: 12px 24px;
    font-size: 1rem;
    font-weight: 600;
    border: 2px solid transparent;
    border-radius: var(--radius);
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
    white-space: nowrap;
    -webkit-tap-highlight-color: transparent;
    user-select: none;
}

.btn:active {
    transform: scale(0.97);
}

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

.btn-primary:hover {
    background: var(--primary-light);
}

.btn-accent {
    background: var(--accent);
    color: #ffffff;
}

.btn-accent:hover {
    background: #e65100;
}

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

.btn-danger {
    background: var(--danger);
    color: #ffffff;
}

.btn-outline {
    background: transparent;
    border-color: currentColor;
    color: inherit;
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.15);
}

.btn-sm {
    min-height: 36px;
    padding: 6px 16px;
    font-size: 0.875rem;
}

.btn-block {
    width: 100%;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

/* ============================================================
   FORMS — Inputs grandes, fáceis de tocar
   ============================================================ */

.form-group {
    margin-bottom: 16px;
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 6px;
}

.form-input {
    width: 100%;
    min-height: var(--min-touch);
    padding: 12px 16px;
    font-size: 1rem;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
    color: var(--text);
    transition: border-color var(--transition);
    -webkit-appearance: none;
    appearance: none;
}

.form-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(26, 35, 126, 0.15);
}

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

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

.form-error {
    font-size: 0.8125rem;
    color: var(--danger);
    margin-top: 4px;
}

select.form-input {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23757575' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 40px;
}

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

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

.card {
    background: var(--surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    padding: 20px;
    margin-bottom: 16px;
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}

.card-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text);
}

.card-subtitle {
    font-size: 0.8125rem;
    color: var(--text-light);
    margin-top: 2px;
}

/* ============================================================
   LOGIN PAGE
   ============================================================ */

.login-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 24px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
}

.login-card {
    width: 100%;
    max-width: 400px;
    background: var(--surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 32px 24px;
}

.login-logo {
    text-align: center;
    margin-bottom: 24px;
}

.login-logo-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    background: var(--primary);
    color: #ffffff;
    font-weight: 700;
    font-size: 1.5rem;
    border-radius: 16px;
    margin-bottom: 12px;
}

.login-logo h1 {
    font-size: 1.5rem;
    color: var(--primary);
    margin-bottom: 4px;
}

.login-logo p {
    font-size: 0.875rem;
    color: var(--text-light);
}

.login-error {
    background: #ffebee;
    color: var(--danger);
    padding: 12px 16px;
    border-radius: var(--radius);
    font-size: 0.875rem;
    margin-bottom: 16px;
    display: none;
}

.login-error.visible {
    display: block;
}

/* ============================================================
   DASHBOARD
   ============================================================ */

.dashboard-header {
    margin-bottom: 20px;
}

.dashboard-header h2 {
    font-size: 1.25rem;
    font-weight: 700;
}

.dashboard-header p {
    font-size: 0.875rem;
    color: var(--text-light);
}

.stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 20px;
}

.stat-card {
    background: var(--surface);
    border-radius: var(--radius);
    padding: 16px;
    text-align: center;
    box-shadow: var(--shadow);
}

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

.stat-label {
    font-size: 0.75rem;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-top: 4px;
}

.quick-actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 24px;
}

.action-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    min-height: 56px;
    padding: 12px 20px;
    background: var(--surface);
    border: 2px solid var(--border);
    border-radius: var(--radius);
    cursor: pointer;
    transition: all var(--transition);
    text-align: left;
    font-size: 1rem;
    color: var(--text);
    -webkit-tap-highlight-color: transparent;
}

.action-btn:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow);
}

.action-btn:active {
    transform: scale(0.98);
}

.action-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.action-icon.blue { background: #e3f2fd; color: var(--secondary); }
.action-icon.green { background: #e8f5e9; color: var(--success); }
.action-icon.orange { background: #fff3e0; color: var(--accent); }
.action-icon.red { background: #ffebee; color: var(--danger); }

.action-text {
    display: flex;
    flex-direction: column;
}

.action-text strong {
    font-weight: 600;
}

.action-text small {
    font-size: 0.75rem;
    color: var(--text-light);
}

/* ============================================================
   LIST / TABLE
   ============================================================ */

.list-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 0;
    border-bottom: 1px solid var(--border);
    cursor: pointer;
    transition: background var(--transition);
}

.list-item:last-child {
    border-bottom: none;
}

.list-item:active {
    background: rgba(0, 0, 0, 0.03);
}

/* ============================================================
   BADGE / STATUS
   ============================================================ */

.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 12px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.badge-primary { background: #e3f2fd; color: var(--primary); }
.badge-success { background: #e8f5e9; color: var(--success); }
.badge-warning { background: #fff3e0; color: var(--accent); }
.badge-danger { background: #ffebee; color: var(--danger); }
.badge-neutral { background: #f5f5f5; color: var(--text-light); }

/* ============================================================
   TOAST / NOTIFICATIONS
   ============================================================ */

.toast-container {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1000;
    width: calc(100% - 32px);
    max-width: 400px;
}

.toast {
    background: var(--text);
    color: #ffffff;
    padding: 14px 20px;
    border-radius: var(--radius);
    margin-bottom: 8px;
    font-size: 0.875rem;
    box-shadow: var(--shadow-lg);
    animation: toast-in 0.3s ease;
}

.toast.success { background: var(--success); }
.toast.error { background: var(--danger); }
.toast.warning { background: var(--warning); }

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

/* ============================================================
   LOADING / SPINNER
   ============================================================ */

.spinner {
    display: inline-block;
    width: 24px;
    height: 24px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top-color: #ffffff;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

.spinner-dark {
    border-color: rgba(0, 0, 0, 0.1);
    border-top-color: var(--primary);
}

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

.loading-overlay {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
}

/* ============================================================
   EMPTY STATE
   ============================================================ */

.empty-state {
    text-align: center;
    padding: 40px 20px;
    color: var(--text-light);
}

.empty-state-icon {
    font-size: 3rem;
    margin-bottom: 12px;
}

.empty-state p {
    font-size: 0.9375rem;
}

/* ============================================================
   UTILITIES
   ============================================================ */

.hidden { display: none !important; }
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--text-light); }
.text-danger { color: var(--danger); }
.text-success { color: var(--success); }
.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mb-8 { margin-bottom: 8px; }
.mb-16 { margin-bottom: 16px; }
.gap-8 { gap: 8px; }
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }

/* ============================================================
   RESPONSIVE — Tablet / Desktop
   ============================================================ */

@media (min-width: 768px) {
    .container {
        max-width: 720px;
        padding: 24px;
    }

    .stats-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .quick-actions {
        flex-direction: row;
        flex-wrap: wrap;
    }

    .quick-actions .action-btn {
        flex: 1 1 calc(50% - 6px);
    }

    .login-card {
        padding: 40px 32px;
    }
}

@media (min-width: 1024px) {
    .container {
        max-width: 960px;
    }
}