/* ============================================
   SecureVault - Modern & Secure Password Manager
   Styles - Mobile First Design
   ============================================ */

/* ===== CSS Variables - Grupo Tecon Branding ===== */
:root {
    /* Grupo Tecon Brand Colors */
    --brand-dark: #1d2127;
    --brand-primary: #db6b30;
    --brand-primary-inverse: #ffffff;
    --brand-secondary: #fcf3ee;
    --brand-secondary-inverse: #db6b30;
    --brand-tertiary: #0085ca;
    --brand-tertiary-inverse: #eaf5fb;
    --brand-quaternary: #eaf5fb;
    --brand-quaternary-inverse: #0085ca;
    
    /* Main Colors - Mapped to Brand */
    --color-primary: #db6b30;
    --color-primary-dark: #c25b28;
    --color-primary-light: #e68a5a;
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-danger: #ef4444;
    --color-info: #0085ca;
    
    /* Neutral Colors */
    --color-bg: #f0f0f0;
    --color-surface: #ffffff;
    --color-text: #1d2127;
    --color-text-secondary: #6b7280;
    --color-border: #e0e0e0;
    
    /* Input Colors */
    --color-input-bg: #ffffff;
    --color-input-text: #1d2127;
    --color-input-border: #e0e0e0;
    --color-input-border-focus: var(--color-primary);
    
    /* Button Secondary Colors */
    --btn-secondary-bg: #6c757d;
    --btn-secondary-border: #6c757d;
    --btn-secondary-text: #ffffff;
    --btn-secondary-hover-bg: #5a6268;
    --btn-secondary-hover-border: #545b62;
    
    /* Card Colors */
    --card-bg: var(--color-surface);
    --card-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    --card-shadow-hover: 0 4px 12px rgba(0, 0, 0, 0.12);
    --card-border: var(--color-border);
    
    /* Metadata/Info Background */
    --color-meta-bg: #f9f9f9;
    
    /* Strength Colors */
    --color-weak: #ef4444;
    --color-medium: #f59e0b;
    --color-strong: #10b981;
    --color-very-strong: #059669;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Gap Sizes */
    --gap-section: 2rem;        /* Entre secciones principales */
    --gap-content: 1rem;        /* Entre elementos dentro de secciones */
    --gap-small: 0.5rem;        /* Entre elementos pequeños */
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;
    
    /* Font */
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-mono: 'Courier New', Courier, monospace;
}

/* ===== Dark Mode Variables ===== */
@media (prefers-color-scheme: dark) {
    :root {
        /* Neutral Colors - Dark Mode */
        --color-bg: #1a1a1a;
        --color-surface: #2d2d2d;
        --color-text: #f5f5f5;
        --color-text-secondary: #b0b0b0;
        --color-border: #404040;
        
        /* Input Colors */
        --color-input-bg: #ffffff;
        --color-input-text: #1d2127;
        --color-input-border: #555555;
        --color-input-border-focus: var(--color-primary);
        
        /* Button Secondary Colors */
        --btn-secondary-bg: #8b8b8b;
        --btn-secondary-border: #8b8b8b;
        --btn-secondary-hover-bg: #a0a0a0;
        --btn-secondary-hover-border: #a0a0a0;
        
        /* Card Colors */
        --card-bg: #353535;
        --card-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
        --card-shadow-hover: 0 8px 20px rgba(0, 0, 0, 0.5);
        --card-border: #404040;
        
        /* Metadata/Info Background */
        --color-meta-bg: #252525;
        
        /* Adjusted brand colors for dark mode */
        --brand-secondary: #2d2520;
        --brand-tertiary-inverse: #1a2a35;
        
        /* Shadows for dark mode */
        --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.5);
        --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.6);
        --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.7);
        --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.8);
    }
    
    /* Logo filter for dark mode */
    .logo-image {
        filter: grayscale(100%) brightness(1000%) contrast(1000%);
    }
}

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    background: var(--color-surface);
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
    padding: var(--spacing-md);
}

/* ===== Container ===== */
.container {
    display: flex;
    flex-direction: column;
    gap: var(--gap-section);
    max-width: 1200px;
    margin: 0 auto;
}

/* ===== Header ===== */
.header {
    text-align: center;
    padding: var(--spacing-lg);
    background: var(--color-bg);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    border-top: 4px solid var(--brand-primary);
    display: flex;
    flex-direction: column;
    gap: var(--gap-content);
}

.logo-link {
    text-decoration: none;
    color: inherit;
    display: inline-block;
    transition: opacity var(--transition-fast);
}

.logo-link:hover {
    opacity: 0.8;
}

.logo-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--gap-content);
}

.logo-image {
    max-height: 60px;
    width: 250px;
    object-fit: contain;
}

.logo-icon {
    max-height: 50px;
    width: auto;
    object-fit: contain;
}

.logo {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--brand-primary);
    margin: 0;
}

.logo-text {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-text);
    margin: 0;
}

.tagline {
    color: var(--color-text-secondary);
    font-size: 1rem;
    font-weight: 500;
}

/* ===== Main Content ===== */
.main-content {
    display: flex;
    flex-direction: column;
    gap: var(--gap-section);
}

/* Contenedor para las dos columnas principales (Generador + Compartir) */
.password-options-container {
    display: flex;
    flex-direction: row;
    gap: var(--gap-section);
}

.password-options-container > .card {
    flex: 1;
    min-width: 0; /* Evita overflow en flex items */
}

/* ===== Cards ===== */
.card {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--card-shadow);
    transition: box-shadow var(--transition-base);
    border: 1px solid var(--card-border);
    border-left: 4px solid var(--brand-primary);
    display: flex;
    flex-direction: column;
    gap: var(--gap-content);
}

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

.section-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-text);
    margin: 0;
    display: flex;
    align-items: center;
    gap: var(--gap-small);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--brand-quaternary);
}

.section-title-small {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text);
    margin: 0;
    display: flex;
    align-items: center;
    gap: var(--gap-small);
}

.icon {
    font-size: 1.5em;
}

/* ===== Password Display ===== */
.password-display {
    display: flex;
    gap: var(--gap-small);
    align-items: stretch;
    width: 100%;
}

.password-input {
    flex: 1;
    padding: var(--spacing-md);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: 1.125rem;
    font-family: var(--font-mono);
    background: var(--color-bg);
    transition: border-color var(--transition-fast);
    min-width: 0; /* Permite que el input se encoja correctamente */
}

.password-input:focus {
    outline: none;
    border-color: var(--color-primary);
}

.password-input.large {
    font-size: 1.25rem;
    padding: var(--spacing-lg);
}

.password-actions {
    display: flex;
    gap: var(--gap-small);
    flex-shrink: 0; /* Evita que los botones se compriman */
}

/* ===== Strength Indicator ===== */
.strength-indicator {
    display: flex;
    flex-direction: column;
    gap: var(--gap-small);
}

.strength-bar {
    height: 8px;
    background: var(--color-border);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.strength-bar-fill {
    height: 100%;
    transition: width var(--transition-base), background-color var(--transition-base);
    border-radius: var(--radius-sm);
}

.strength-bar-fill.weak {
    background: var(--color-weak);
}

.strength-bar-fill.medium {
    background: var(--color-medium);
}

.strength-bar-fill.strong {
    background: var(--color-strong);
}

.strength-bar-fill.very-strong {
    background: var(--color-very-strong);
}

.strength-info {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    font-size: 0.875rem;
}

.strength-label {
    font-weight: 600;
}

.strength-label.weak {
    color: var(--color-weak);
}

.strength-label.medium {
    color: var(--color-medium);
}

.strength-label.strong {
    color: var(--color-strong);
}

.strength-label.very-strong {
    color: var(--color-very-strong);
}

.strength-details {
    color: var(--color-text-secondary);
    font-size: 0.8125rem;
}

/* ===== Options Group ===== */
.options-group {
    display: flex;
    flex-direction: column;
    gap: var(--gap-content);
}

.option-row {
    display: flex;
    flex-direction: column;
    gap: var(--gap-small);
}

.option-label {
    display: block;
    font-weight: 500;
    margin: 0;
    color: var(--color-text);
}

.slider {
    width: 100%;
    height: 8px;
    border-radius: var(--radius-sm);
    background: var(--color-border);
    outline: none;
    -webkit-appearance: none;
    appearance: none;
}

.slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--color-primary);
    cursor: pointer;
    transition: transform var(--transition-fast);
}

.slider::-webkit-slider-thumb:hover {
    transform: scale(1.1);
}

.slider::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--color-primary);
    cursor: pointer;
    border: none;
    transition: transform var(--transition-fast);
}

.slider::-moz-range-thumb:hover {
    transform: scale(1.1);
}

/* ===== Checkbox Grid ===== */
.checkbox-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--gap-content);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--gap-small);
    cursor: pointer;
    user-select: none;
    transition: color var(--transition-fast);
}

.checkbox-label:not(:has(input:disabled)):hover {
    color: var(--color-primary);
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--color-primary);
}

.checkbox-label:has(input:disabled) {
    cursor: not-allowed;
    opacity: 0.6;
}

/* ===== Forms ===== */
.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--gap-small);
}

.form-label {
    display: block;
    font-weight: 500;
    margin: 0;
    color: var(--color-text);
}

.form-input,
.form-select,
.password-input,
.share-link-input,
#generatedPassword,
#pinInput {
    width: 100%;
    padding: var(--spacing-md);
    background: var(--color-input-bg);
    color: var(--color-input-text);
    border: 2px solid var(--color-input-border);
    border-radius: var(--radius-md);
    font-size: 1rem;
    transition: border-color var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.password-input:focus,
.share-link-input:focus,
#generatedPassword:focus,
#pinInput:focus {
    outline: none;
    border-color: var(--color-input-border-focus);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--gap-content);
}

.input-with-action {
    display: flex;
    gap: var(--gap-small);
    align-items: stretch;
    width: 100%;
}

.input-with-action .form-input {
    flex: 1;
    min-width: 0; /* Permite que el input se encoja correctamente */
}

.input-with-action .btn {
    flex-shrink: 0; /* Evita que el botón se comprima */
}

.form-description {
    color: var(--color-text-secondary);
    margin: 0;
}

/* ===== Buttons ===== */
.btn {
    padding: var(--spacing-md) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--gap-small);
    text-decoration: none;
}

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

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

.btn-primary:hover:not(:disabled) {
    background: var(--color-primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-primary:active:not(:disabled) {
    transform: translateY(0);
}

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

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

.btn-icon {
    padding: var(--spacing-md);
    background: var(--color-bg);
    border: 2px solid var(--color-border);
}

.btn-icon:hover:not(:disabled) {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
}

.btn-large {
    width: 100%;
    padding: var(--spacing-lg);
    font-size: 1.125rem;
}

.btn-small {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.875rem;
}

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

.btn-icon-content {
    font-size: 1.25rem;
}

/* ===== Alerts ===== */
.alert {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    display: flex;
    flex-direction: column;
    gap: var(--gap-content);
}

.alert h3 {
    margin: 0;
}

.alert p {
    margin: 0;
}

.alert-success {
    background: #d1fae5;
    border: 2px solid var(--color-success);
    color: #065f46;
}

.alert-warning {
    background: var(--brand-secondary);
    border: 2px solid var(--color-warning);
    color: var(--color-text);
}

.alert-danger {
    background: #fee2e2;
    border: 2px solid var(--color-danger);
    color: #991b1b;
}

.alert-info {
    background: var(--brand-tertiary-inverse);
    border: 2px solid var(--color-info);
    color: var(--color-text);
}

/* ===== Share Result ===== */
.share-result {
    display: flex;
    flex-direction: column;
    gap: var(--gap-content);
}

.share-link-container {
    display: flex;
    flex-direction: column;
    gap: var(--gap-content);
}

.share-link-display {
    padding: var(--spacing-md);
    border: 2px solid var(--color-success);
    border-radius: var(--radius-md);
    font-family: var(--font-mono);
    background: var(--color-input-bg);
    font-size: 0.875rem;
    word-break: break-all;
    color: var(--color-input-text);
    user-select: all;
    line-height: 1.6;
}

/* Mantener compatibilidad con input por si se necesita */
.share-link-input {
    flex: 1;
    padding: var(--spacing-md);
    border: 2px solid var(--color-success);
    border-radius: var(--radius-md);
    font-family: var(--font-mono);
    background: white;
    font-size: 0.875rem;
}

.share-info {
    display: flex;
    flex-direction: column;
    gap: var(--gap-small);
}

.share-info p {
    margin: 0;
}

/* ===== Info Section ===== */
.info-section {
    display: flex;
    flex-direction: column;
    gap: var(--gap-content);
}

.info-list {
    list-style: none;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: var(--gap-small);
}

.info-list li {
    padding: 0;
    color: var(--color-text-secondary);
}

.info-text {
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin: 0;
}

/* ===== Toast Notification ===== */
.toast {
    position: fixed;
    bottom: var(--spacing-xl);
    right: var(--spacing-xl);
    background: var(--color-text);
    color: white;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    transform: translateY(200%);
    transition: transform var(--transition-base);
    z-index: 1000;
    max-width: 400px;
}

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

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

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

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

.toast.info {
    background: var(--color-primary);
}

/* ===== View Page Specific ===== */
.warning-banner {
    background: var(--brand-secondary);
    border: 2px solid var(--color-warning);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    display: flex;
    gap: var(--gap-content);
    align-items: center;
}

.warning-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.warning-content {
    color: var(--color-text);
    flex: 1;
}

.warning-content p {
    margin: 0;
}

.view-prompt,
.pin-form {
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: var(--gap-content);
}

.password-display-section {
    display: flex;
    flex-direction: column;
    gap: var(--gap-content);
}

.revealed-password-container {
    display: flex;
    flex-direction: column;
    gap: var(--gap-content);
}

.password-meta {
    background: var(--color-meta-bg);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    display: flex;
    flex-direction: column;
    gap: var(--gap-small);
}

.meta-item {
    display: flex;
    justify-content: space-between;
    padding: 0;
}

.meta-label {
    color: var(--color-text-secondary);
    font-weight: 500;
}

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

/* Error Page */
.error-section {
    text-align: center;
    padding: var(--spacing-2xl);
    display: flex;
    flex-direction: column;
    gap: var(--gap-content);
}

.error-icon {
    font-size: 4rem;
    margin: 0;
}

.error-title {
    font-size: 1.75rem;
    margin: 0;
    color: var(--color-danger);
}

.error-message {
    color: var(--color-text-secondary);
    margin: 0;
    font-size: 1.125rem;
}

.error-reasons {
    text-align: left;
    background: var(--color-meta-bg);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    display: flex;
    flex-direction: column;
    gap: var(--gap-content);
}

.error-reasons h3 {
    margin: 0;
}

.error-reasons ul {
    list-style: none;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: var(--gap-small);
}

.error-reasons li {
    padding: 0;
    color: var(--color-text-secondary);
}

.error-reasons li::before {
    content: "→ ";
    color: var(--color-danger);
    font-weight: bold;
}

/* ===== Tooltip ===== */
.tooltip {
    cursor: help;
    color: var(--color-text-secondary);
    font-size: 0.875rem;
}

/* ===== Footer ===== */
.footer {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    background: var(--color-bg);
    border-radius: var(--radius-md);
    display: flex;
    flex-direction: column;
    gap: var(--gap-content);
}

.footer p {
    margin: 0;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: var(--gap-content);
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
    transition: color var(--transition-fast);
}

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

/* ===== Legal Content ===== */
.legal-content {
    line-height: 1.8;
    display: flex;
    flex-direction: column;
    gap: var(--gap-content);
}

.legal-content h3 {
    color: var(--color-text);
    margin: 0;
    font-size: 1.25rem;
    border-bottom: 2px solid var(--color-border);
    padding-bottom: var(--spacing-sm);
}

.legal-content h4 {
    color: var(--color-text);
    margin: 0;
    font-size: 1.1rem;
}

.legal-content p {
    margin: 0;
    color: var(--color-text);
}

.legal-content ul {
    margin: 0;
    padding-left: var(--spacing-xl);
    display: flex;
    flex-direction: column;
    gap: var(--gap-small);
}

.legal-content li {
    margin: 0;
    color: var(--color-text);
}

.legal-content a {
    color: var(--color-primary);
    text-decoration: none;
}

.legal-content a:hover {
    text-decoration: underline;
}

.legal-content strong {
    color: var(--color-text);
    font-weight: 600;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) and (min-width: 769px) {
    /* En tablets, reducir gap entre columnas */
    .password-options-container {
        gap: var(--gap-content);
    }
    
    .card {
        padding: var(--spacing-lg);
    }
}

@media (max-width: 768px) {
    /* En móvil, las secciones van en columna */
    .password-options-container {
        flex-direction: column;
    }
    
    .password-display {
        flex-direction: column;
    }
    
    .password-actions {
        justify-content: stretch;
        width: 100%;
    }
    
    .password-actions .btn {
        flex: 1;
    }
    
    .share-link-container {
        flex-direction: column;
    }
    
    .revealed-password-container {
        flex-direction: column;
    }
    
    .input-with-action {
        flex-wrap: wrap;
    }
    
    .input-with-action .form-input {
        flex-basis: 100%;
    }
    
    .input-with-action .btn {
        width: 100%;
    }
    
    /* Ajustar strength-info para móvil */
    .strength-info {
        gap: 0.5rem;
    }
    
    .toast {
        right: var(--spacing-md);
        left: var(--spacing-md);
        max-width: none;
    }
}

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

.card,
.header {
    animation: fadeIn var(--transition-slow) ease;
}

/* ===== Print Styles ===== */
@media print {
    body {
        background: white;
    }
    
    .header,
    .footer,
    .btn,
    .toast {
        display: none;
    }
}