/* ==============================================
   ConAdmin Chile - Main Stylesheet
   Sistema de Diseño Base
   ============================================== */

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

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 16px;
    line-height: 1.5;
    color: #171A1C;
    background-color: #F8F9FA;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

/* ==============================================
   SISTEMA DE DISEÑO - VARIABLES CSS
   ============================================== */

:root {
    /* Colores Primarios (Acento) */
    --primary-50: #EBF5FF;
    --primary-100: #EBF5FF;
    --primary-500: #007BFF;
    --primary-600: #0069d9;
    --primary-700: #0056b3;
    --primary-900: #003d80;

    /* Colores Neutrales */
    --neutral-50: #F8F9FA;
    --neutral-100: #FFFFFF;
    --neutral-200: #F0F3F5;
    --neutral-300: #D9DFE4;
    --neutral-400: #ADB5BD;
    --neutral-500: #6C757D;
    --neutral-600: #495057;
    --neutral-700: #565E64;
    --neutral-800: #343A40;
    --neutral-900: #171A1C;

    /* Colores Semánticos */
    --success: #28a745;
    --success-light: rgba(40, 167, 69, 0.1);
    --warning: #ffc107;
    --warning-light: rgba(255, 193, 7, 0.1);
    --error: #dc3545;
    --error-light: rgba(220, 53, 69, 0.1);

    /* Espaciado (Sistema 8px) */
    --spacing-xs: 8px;
    --spacing-sm: 12px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-xxl: 48px;
    --spacing-xxxl: 64px;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;

    /* Sombras */
    --shadow-sm: 0 1px 2px rgba(23, 26, 28, 0.05);
    --shadow-md: 0 4px 12px rgba(23, 26, 28, 0.08);
    --shadow-lg: 0 10px 24px rgba(23, 26, 28, 0.1);
    --shadow-xl: 0 20px 40px rgba(23, 26, 28, 0.12);

    /* Transiciones */
    --transition-fast: all 150ms ease-in-out;
    --transition-normal: all 200ms ease-in-out;
    --transition-slow: all 300ms ease-in-out;

    /* Layout */
    --sidebar-width: 240px;
    --header-height: 72px;
    --content-max-width: 1280px;
}

/* ==============================================
   COMPONENTES BASE - BOTONES
   ============================================== */

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-lg);
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition-normal);
    background: none;
    color: var(--neutral-900);
    white-space: nowrap;
    user-select: none;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-primary {
    background-color: var(--primary-500);
    color: white;
    border-color: var(--primary-500);
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover:not(:disabled) {
    background-color: var(--primary-700);
    border-color: var(--primary-700);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: var(--neutral-100);
    color: var(--neutral-900);
    border-color: var(--neutral-300);
}

.btn-secondary:hover:not(:disabled) {
    background-color: var(--neutral-200);
    border-color: var(--neutral-400);
}

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

.btn-success:hover:not(:disabled) {
    background-color: #218838;
    border-color: #218838;
}

.btn-warning {
    background-color: var(--warning);
    color: var(--neutral-900);
    border-color: var(--warning);
}

.btn-warning:hover:not(:disabled) {
    background-color: #e0a800;
    border-color: #e0a800;
}

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

.btn-danger:hover:not(:disabled) {
    background-color: #c82333;
    border-color: #c82333;
}

.btn-sm {
    padding: calc(var(--spacing-xs) - 2px) var(--spacing-sm);
    font-size: 12px;
}

.btn-lg {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 16px;
}

/* ==============================================
   COMPONENTES BASE - FORMULARIOS
   ============================================== */

.input,
.select,
.textarea {
    width: 100%;
    padding: 12px var(--spacing-md);
    border: 1px solid var(--neutral-300);
    border-radius: var(--radius-md);
    background-color: var(--neutral-200);
    color: var(--neutral-900);
    font-size: 14px;
    transition: var(--transition-normal);
    font-family: inherit;
}

.input:focus,
.select:focus,
.textarea:focus {
    outline: none;
    border-color: var(--primary-500);
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.15);
    background-color: var(--neutral-100);
}

.input::placeholder,
.textarea::placeholder {
    color: var(--neutral-500);
}

.textarea {
    resize: vertical;
    min-height: 80px;
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-size: 14px;
    font-weight: 500;
    color: var(--neutral-700);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.amount-input-group {
    position: relative;
    display: flex;
    align-items: center;
}

.amount-input {
    padding-left: calc(var(--spacing-xl) + var(--spacing-xs));
}

.currency {
    position: absolute;
    left: var(--spacing-md);
    color: var(--neutral-500);
    font-size: 14px;
    font-weight: 500;
}

/* ==============================================
   COMPONENTES BASE - TARJETAS
   ============================================== */

.card {
    background-color: var(--neutral-100);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--neutral-200);
    transition: var(--transition-normal);
}

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

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.section-header h2 {
    font-size: 24px;
    font-weight: 700;
    color: var(--neutral-900);
}

.header-actions {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

/* ==============================================
   COMPONENTES BASE - TABLAS
   ============================================== */

.table-container {
    overflow-x: auto;
    border-radius: var(--radius-lg);
    border: 1px solid var(--neutral-200);
}

.table {
    width: 100%;
    border-collapse: collapse;
    background-color: var(--neutral-100);
}

.table th,
.table td {
    padding: var(--spacing-md) var(--spacing-lg);
    text-align: left;
    border-bottom: 1px solid var(--neutral-200);
}

.table th {
    background-color: var(--neutral-50);
    font-weight: 600;
    font-size: 14px;
    color: var(--neutral-700);
    white-space: nowrap;
}

.table tbody tr {
    transition: var(--transition-fast);
}

.table tbody tr:hover {
    background-color: var(--neutral-200);
}

.table tbody tr:last-child td {
    border-bottom: none;
}

/* ==============================================
   COMPONENTES BASE - BADGES & TAGS
   ============================================== */

.badge,
.tag {
    display: inline-flex;
    align-items: center;
    padding: 4px var(--spacing-xs);
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.025em;
    white-space: nowrap;
}

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

.badge-warning {
    color: #856404;
    background-color: var(--warning-light);
}

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

.badge-neutral {
    color: var(--neutral-700);
    background-color: var(--neutral-200);
}

.tag {
    background-color: var(--neutral-200);
    color: var(--neutral-700);
    border-radius: var(--radius-sm);
}

/* ==============================================
   COMPONENTES BASE - LOADING & ANIMATIONS
   ============================================== */

.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--neutral-100);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-lg);
    z-index: 9999;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--neutral-300);
    border-top: 3px solid var(--primary-500);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.fade-in {
    animation: fadeIn 0.3s ease-out;
}

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

.slide-up {
    animation: slideUp 0.3s ease-out;
}

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

/* ==============================================
   UTILIDADES
   ============================================== */

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-primary { color: var(--primary-500); }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-danger { color: var(--error); }
.text-muted { color: var(--neutral-500); }
.text-dark { color: var(--neutral-900); }

.bg-primary { background-color: var(--primary-500); }
.bg-success { background-color: var(--success); }
.bg-warning { background-color: var(--warning); }
.bg-danger { background-color: var(--error); }

.hidden { display: none; }
.visible { display: block; }

.d-flex { display: flex; }
.d-block { display: block; }
.d-grid { display: grid; }
.d-none { display: none; }

.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }

.align-center { align-items: center; }
.align-start { align-items: flex-start; }
.align-end { align-items: flex-end; }

.flex-1 { flex: 1; }
.flex-wrap { flex-wrap: wrap; }
.gap-xs { gap: var(--spacing-xs); }
.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }

.m-0 { margin: 0; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.ml-0 { margin-left: 0; }
.mr-0 { margin-right: 0; }

.p-0 { padding: 0; }
.pt-0 { padding-top: 0; }
.pb-0 { padding-bottom: 0; }
.pl-0 { padding-left: 0; }
.pr-0 { padding-right: 0; }

.w-full { width: 100%; }
.h-full { height: 100%; }

/* ==============================================
   RESPONSIVE HELPERS
   ============================================== */

@media (max-width: 768px) {
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .section-header {
        flex-direction: column;
        align-items: stretch;
    }
    
    .header-actions {
        justify-content: stretch;
    }
    
    .header-actions .btn {
        flex: 1;
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-xl: 24px;
        --spacing-xxl: 32px;
        --spacing-xxxl: 48px;
    }
    
    .card {
        padding: var(--spacing-lg);
    }
}

/* ==============================================
   LOGIN SCREEN STYLES
   ============================================== */

.login-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-500) 0%, var(--primary-700) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.login-container {
    background: var(--neutral-100);
    border-radius: 16px;
    padding: var(--spacing-xxl);
    width: 100%;
    max-width: 400px;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.2);
    border: 1px solid var(--neutral-200);
}

.login-header {
    text-align: center;
    margin-bottom: var(--spacing-xxl);
}

.login-header .logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    color: var(--primary-600);
}

.login-header .logo i {
    width: 48px;
    height: 48px;
}

.login-header .logo h1 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-700);
    margin: 0;
}

.login-header p {
    color: var(--neutral-600);
    font-size: 0.95rem;
    margin: 0;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.login-form .form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.login-form label {
    font-weight: 600;
    color: var(--neutral-700);
    font-size: 0.9rem;
}

.login-form input {
    padding: var(--spacing-md);
    border: 1px solid var(--neutral-300);
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.2s ease;
    background: var(--neutral-50);
}

.login-form input:focus {
    outline: none;
    border-color: var(--primary-500);
    background: var(--neutral-100);
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.1);
}

.btn-login {
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--primary-600);
    color: white;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
}

.btn-login:hover {
    background: var(--primary-700);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 123, 255, 0.3);
}

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

.btn-login i {
    width: 20px;
    height: 20px;
}

.login-info {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: var(--neutral-50);
    border-radius: 8px;
    border: 1px solid var(--neutral-200);
}

.login-info p {
    margin: 0 0 var(--spacing-sm) 0;
    font-size: 0.85rem;
    color: var(--neutral-600);
    line-height: 1.4;
}

.login-info p:last-child {
    margin-bottom: 0;
}

.login-info strong {
    color: var(--neutral-700);
    font-weight: 600;
}

/* Loading state for login button */
.btn-login.loading {
    opacity: 0.7;
    cursor: not-allowed;
    pointer-events: none;
}

.btn-login.loading::after {
    content: '';
    width: 16px;
    height: 16px;
    border: 2px solid transparent;
    border-top: 2px solid currentColor;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-left: var(--spacing-sm);
}

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

/* Hide main layout when login screen is visible */
.layout {
    transition: opacity 0.3s ease;
}

.layout.hidden {
    display: none;
}

/* Notification Styles */
.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    background: var(--neutral-100);
    border-radius: 8px;
    padding: var(--spacing-md);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    border-left: 4px solid var(--primary-500);
    z-index: 10000;
    transform: translateX(400px);
    transition: all 0.3s ease;
    max-width: 400px;
    min-width: 300px;
}

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

.notification.error {
    border-left-color: #DC3545;
    background: #FFF5F5;
}

.notification.success {
    border-left-color: #28A745;
    background: #F0FFF4;
}

.notification.warning {
    border-left-color: #FFC107;
    background: #FFFEF0;
}

.notification i {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.notification.error i {
    color: #DC3545;
}

.notification.success i {
    color: #28A745;
}

.notification.warning i {
    color: #FFC107;
}

.notification span {
    flex: 1;
    font-size: 0.9rem;
    color: var(--neutral-700);
}

.notification-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--neutral-500);
    cursor: pointer;
    padding: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: all 0.2s ease;
}

.notification-close:hover {
    background: var(--neutral-200);
    color: var(--neutral-700);
}

/* Logout Button Styles */
.btn-logout {
    width: 100%;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: transparent;
    color: var(--neutral-600);
    border: 1px solid var(--neutral-300);
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    margin-top: var(--spacing-md);
}

.btn-logout:hover {
    background: #FFF5F5;
    color: #DC3545;
    border-color: #DC3545;
}

.btn-logout i {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}