/**
 * Password Security Lab - Hojas de Estilo CSS Modernas
 * 
 * Tema: Dark Slate Táctico de Ciberseguridad / Alta Definición
 * Características: Variables CSS (Custom Properties), Responsive Grid,
 * Accesibilidad WCAG 2.1 AA (contraste alto y focus visible) y Cero Emojis.
 */

:root {
    /* Paleta de Colores de Fondo y Superficie */
    --bg-base: #0a0e17;
    --bg-surface: #111927;
    --bg-surface-elevated: #162032;
    --bg-input: #1a2436;
    --bg-card-hover: #1e2c42;

    /* Bordes y Divisiones */
    --border-subtle: #1e293b;
    --border-medium: #334155;
    --border-focus: #3b82f6;

    /* Colores Semánticos de Ciberseguridad */
    --color-primary: #3b82f6;
    --color-primary-hover: #2563eb;
    --color-success: #10b981;
    --color-success-bg: rgba(16, 185, 129, 0.1);
    --color-success-border: rgba(16, 185, 129, 0.3);
    
    --color-warning: #f59e0b;
    --color-warning-bg: rgba(245, 158, 11, 0.1);
    --color-warning-border: rgba(245, 158, 11, 0.3);

    --color-warning-dark: #f97316;
    --color-warning-dark-bg: rgba(249, 115, 22, 0.1);

    --color-danger: #ef4444;
    --color-danger-bg: rgba(239, 68, 68, 0.1);
    --color-danger-border: rgba(239, 68, 68, 0.3);

    --color-info: #06b6d4;
    --color-info-bg: rgba(6, 182, 212, 0.1);
    --color-info-border: rgba(6, 182, 212, 0.3);

    /* Tipografía y Textos */
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --text-accent: #60a5fa;

    /* Fuentes */
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    --font-mono: "JetBrains Mono", "Fira Code", "Cascadia Code", Consolas, Menlo, Monaco, monospace;

    /* Sombras y Efectos */
    --shadow-card: 0 4px 6px -1px rgba(0, 0, 0, 0.5), 0 2px 4px -2px rgba(0, 0, 0, 0.5);
    --shadow-glow-blue: 0 0 15px rgba(59, 130, 246, 0.25);
    --shadow-glow-danger: 0 0 15px rgba(239, 68, 68, 0.25);

    /* Radios y Espaciados */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s ease;
}

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

html {
    font-size: 16px;
    background-color: var(--bg-base);
    color: var(--text-primary);
    font-family: var(--font-sans);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}

/* Accesibilidad: Anillo de Enfoque */
:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* Layout General */
.app-wrapper {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1.5rem 1rem;
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    flex: 1;
}

/* Encabezado */
.app-header {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    box-shadow: var(--shadow-card);
}

.header-badge-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.main-title {
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--text-primary);
    margin-bottom: 0.35rem;
}

.subtitle {
    font-size: 0.95rem;
    color: var(--text-secondary);
}

/* Navegación por Pestañas */
.tabs-nav {
    display: flex;
    gap: 0.75rem;
    margin-top: 1.25rem;
    border-top: 1px solid var(--border-subtle);
    padding-top: 1rem;
}

.tab-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background-color: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-subtle);
    padding: 0.6rem 1.2rem;
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.tab-btn:hover {
    background-color: var(--bg-surface-elevated);
    color: var(--text-primary);
    border-color: var(--border-medium);
}

.tab-btn.tab-active {
    background-color: var(--color-primary);
    color: #ffffff;
    border-color: var(--color-primary);
    box-shadow: var(--shadow-glow-blue);
}

/* Tarjetas y Contenedores */
.card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    box-shadow: var(--shadow-card);
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
}

.card-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-primary);
}

.card-subtitle {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 0.2rem;
}

.meta-indicator {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-muted);
    background-color: var(--bg-surface-elevated);
    padding: 0.2rem 0.6rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-subtle);
}

/* Campo de Entrada Principal */
.input-container {
    position: relative;
    display: flex;
    align-items: center;
    width: 100%;
}

.password-field {
    width: 100%;
    background-color: var(--bg-input);
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 1.15rem;
    padding: 0.85rem 5rem 0.85rem 1rem;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.password-field:focus {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-glow-blue);
    outline: none;
}

.input-actions {
    position: absolute;
    right: 0.5rem;
    display: flex;
    gap: 0.25rem;
}

.icon-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 0.45rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color var(--transition-fast), background-color var(--transition-fast);
}

.icon-btn:hover {
    color: var(--text-primary);
    background-color: var(--bg-surface-elevated);
}

.privacy-note {
    font-size: 0.8rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

/* Medidor de Entropía */
.entropy-gauge-card {
    background-color: var(--bg-surface-elevated);
    border-color: var(--border-medium);
}

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

.gauge-label {
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
}

.gauge-value-row {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-top: 0.25rem;
}

.entropy-score-val {
    font-family: var(--font-mono);
    font-size: 2.25rem;
    font-weight: 800;
    color: var(--color-danger);
    transition: color var(--transition-normal);
}

/* Barra de Progreso */
.progress-track {
    position: relative;
    width: 100%;
    height: 12px;
    background-color: var(--bg-base);
    border-radius: 6px;
    overflow: hidden;
    border: 1px solid var(--border-subtle);
}

.progress-fill {
    height: 100%;
    width: 5%;
    background-color: var(--color-danger);
    transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1), background-color 0.3s ease;
}

.progress-segments {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.segment-tick {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 2px;
    background-color: var(--bg-surface);
    opacity: 0.8;
}

.gauge-scale-legend {
    display: flex;
    justify-content: space-between;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

.entropy-summary-text {
    font-size: 0.9rem;
    color: var(--text-secondary);
    border-top: 1px solid var(--border-subtle);
    padding-top: 0.75rem;
    margin-top: 0.25rem;
}

/* Grilla de Métricas */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
}

.metric-card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.metric-card-highlight {
    border-color: var(--color-primary);
    background-color: rgba(59, 130, 246, 0.05);
}

.metric-title {
    font-size: 0.78rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
}

.metric-value {
    font-family: var(--font-mono);
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text-primary);
}

.metric-sub {
    font-size: 0.75rem;
    color: var(--text-muted);
    word-break: break-word;
}

/* Badges Geométricos Limpios */
.badge {
    display: inline-flex;
    align-items: center;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    padding: 0.25rem 0.6rem;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    text-transform: uppercase;
}

.badge-tech {
    background-color: var(--bg-surface-elevated);
    border-color: var(--border-subtle);
    color: var(--text-secondary);
}

.status-danger, .badge-critico {
    background-color: var(--color-danger-bg);
    border-color: var(--color-danger-border);
    color: var(--color-danger);
}

.status-warning-dark, .badge-alto {
    background-color: var(--color-warning-dark-bg);
    border-color: rgba(249, 115, 22, 0.3);
    color: var(--color-warning-dark);
}

.status-warning, .badge-medio {
    background-color: var(--color-warning-bg);
    border-color: var(--color-warning-border);
    color: var(--color-warning);
}

.status-info, .badge-bajo {
    background-color: var(--color-info-bg);
    border-color: var(--color-info-border);
    color: var(--color-info);
}

.status-success {
    background-color: var(--color-success-bg);
    border-color: var(--color-success-border);
    color: var(--color-success);
}

.status-muted {
    background-color: var(--bg-surface-elevated);
    border-color: var(--border-subtle);
    color: var(--text-muted);
}

.badge-penalty {
    background-color: var(--color-danger-bg);
    color: var(--color-danger);
    border-color: var(--color-danger-border);
}

/* Layout 2 Columnas */
.two-col-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

@media (max-width: 850px) {
    .two-col-layout {
        grid-template-columns: 1fr;
    }
}

/* Lista de Vulnerabilidades */
.vuln-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.vuln-item {
    background-color: var(--bg-surface-elevated);
    border: 1px solid var(--border-subtle);
    border-left: 4px solid var(--border-medium);
    border-radius: var(--radius-sm);
    padding: 0.75rem 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.vuln-clean {
    border-left-color: var(--color-success);
}

.vuln-critico {
    border-left-color: var(--color-danger);
}

.vuln-alto {
    border-left-color: var(--color-warning-dark);
}

.vuln-medio {
    border-left-color: var(--color-warning);
}

.vuln-bajo {
    border-left-color: var(--color-info);
}

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

.vuln-desc {
    font-size: 0.85rem;
    color: var(--text-primary);
}

.vuln-rec {
    font-size: 0.78rem;
    color: var(--text-accent);
    font-family: var(--font-mono);
}

/* HIBP Panel */
.hibp-body {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.hibp-desc {
    font-size: 0.9rem;
    color: var(--text-primary);
}

.hibp-details-box {
    background-color: var(--bg-surface-elevated);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 0.85rem;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.hibp-prefix-code {
    font-family: var(--font-mono);
    font-size: 0.82rem;
    color: var(--color-info);
    font-weight: 600;
}

.hibp-explanation {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.hibp-controls-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.75rem;
}

/* Grilla de Escenarios de Ataque */
.scenarios-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1rem;
}

.scenario-card {
    background-color: var(--bg-surface-elevated);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 1.15rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.scenario-card:hover {
    transform: translateY(-2px);
}

.card-critical {
    border-top: 3px solid var(--color-danger);
}

.card-warning {
    border-top: 3px solid var(--color-warning);
}

.card-secure {
    border-top: 3px solid var(--color-success);
}

.scenario-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 0.5rem;
}

.scenario-name {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text-primary);
}

.scenario-rate {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
}

.scenario-time-box {
    background-color: var(--bg-base);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    padding: 0.6rem;
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.scenario-time-label {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
}

.scenario-time-val {
    font-family: var(--font-mono);
    font-size: 1.1rem;
    font-weight: 800;
}

.scenario-desc {
    font-size: 0.78rem;
    color: var(--text-secondary);
}

/* Modulo Generador */
.gen-mode-selector {
    display: flex;
    gap: 1.5rem;
    background-color: var(--bg-surface-elevated);
    padding: 0.85rem 1rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-subtle);
}

.radio-label, .checkbox-label {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-primary);
    cursor: pointer;
}

.gen-output-box {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.gen-field {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-primary);
    letter-spacing: 0.05em;
}

.gen-meta-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
}

.meta-label {
    color: var(--text-secondary);
}

.slider-control {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1.25rem;
}

.slider-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9rem;
    font-weight: 600;
}

.slider-val-badge {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    background-color: var(--color-primary);
    color: #ffffff;
    padding: 0.15rem 0.5rem;
    border-radius: var(--radius-sm);
}

.range-slider {
    width: 100%;
    accent-color: var(--color-primary);
    cursor: pointer;
}

.checkbox-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 0.85rem;
}

.selects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem;
    margin-bottom: 1rem;
}

.select-group {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.select-label {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.select-field {
    background-color: var(--bg-input);
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.9rem;
    padding: 0.6rem 0.75rem;
}

.select-field:focus {
    border-color: var(--color-primary);
    outline: none;
}

.checkbox-row-single {
    margin-top: 0.5rem;
}

.gen-action-footer {
    display: flex;
    justify-content: flex-end;
    margin-top: 0.5rem;
}

/* Botones */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    font-weight: 600;
    padding: 0.7rem 1.4rem;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

.btn-primary:hover {
    background-color: var(--color-primary-hover);
    box-shadow: var(--shadow-glow-blue);
}

.btn-secondary {
    background-color: var(--bg-surface-elevated);
    border-color: var(--border-medium);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background-color: var(--bg-card-hover);
    border-color: var(--text-secondary);
}

.btn-sm {
    padding: 0.4rem 0.85rem;
    font-size: 0.8rem;
}

/* Pie de Página */
.app-footer {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 1.25rem 1.5rem;
    margin-top: auto;
}

.footer-content {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    font-size: 0.78rem;
    color: var(--text-muted);
}

.footer-security-stmt {
    font-family: var(--font-mono);
    color: var(--text-secondary);
}

.footer-meta {
    font-size: 0.72rem;
}

/* Notificaciones Toast */
.toast-container {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    z-index: 9999;
}

.toast-item {
    background-color: var(--bg-surface-elevated);
    color: var(--text-primary);
    border: 1px solid var(--color-primary);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 700;
    padding: 0.75rem 1.25rem;
    border-radius: var(--radius-md);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.7), var(--shadow-glow-blue);
    animation: toast-in 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.toast-fade {
    opacity: 0;
    transform: translateY(10px);
}

@keyframes toast-in {
    from {
        opacity: 0;
        transform: translateY(15px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Banner de Alerta de Entorno */
.security-alert-banner {
    background-color: var(--color-danger);
    color: #ffffff;
    font-family: var(--font-mono);
    font-weight: 700;
    padding: 1rem;
    text-align: center;
    font-size: 0.9rem;
}

/* Utilidades */
.hidden {
    display: none !important;
}

.text-danger {
    color: var(--color-danger);
}

.text-warning {
    color: var(--color-warning);
}

.text-success {
    color: var(--color-success);
}

.text-accent {
    color: var(--text-accent);
}