/* ============================================
   G5 FIRMAS - Design System
   Fuentes, colores, componentes y tamaños
   ============================================ */

/* --- CSS Custom Properties --- */
:root {
    /* Colors - Primary */
    --color-primary: #2563eb;
    --color-primary-hover: #1d4ed8;
    --color-primary-light: #dbeafe;
    --color-primary-dark: #1e40af;

    /* Colors - Neutral */
    --color-bg: #f8fafc;
    --color-surface: #ffffff;
    --color-surface-hover: #f1f5f9;
    --color-border: #e2e8f0;
    --color-border-hover: #cbd5e1;

    /* Colors - Text */
    --color-text: #0f172a;
    --color-text-secondary: #475569;
    --color-text-muted: #94a3b8;
    --color-text-inverse: #ffffff;

    /* Colors - Semantic */
    --color-success: #16a34a;
    --color-success-light: #dcfce7;
    --color-success-border: #bbf7d0;
    --color-warning: #d97706;
    --color-warning-light: #fef3c7;
    --color-warning-border: #fde68a;
    --color-danger: #dc2626;
    --color-danger-light: #fee2e2;
    --color-danger-border: #fecaca;
    --color-danger-hover: #b91c1c;
    --color-info: #0284c7;
    --color-info-light: #e0f2fe;

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;    /* 12px */
    --font-size-sm: 0.8125rem;  /* 13px */
    --font-size-base: 0.875rem; /* 14px */
    --font-size-md: 1rem;       /* 16px */
    --font-size-lg: 1.125rem;   /* 18px */
    --font-size-xl: 1.25rem;    /* 20px */
    --font-size-2xl: 1.5rem;    /* 24px */
    --font-size-3xl: 1.875rem;  /* 30px */

    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;

    --line-height-tight: 1.25;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.75;

    /* Spacing */
    --space-1: 0.25rem;   /* 4px */
    --space-2: 0.5rem;    /* 8px */
    --space-3: 0.75rem;   /* 12px */
    --space-4: 1rem;      /* 16px */
    --space-5: 1.25rem;   /* 20px */
    --space-6: 1.5rem;    /* 24px */
    --space-8: 2rem;      /* 32px */
    --space-10: 2.5rem;   /* 40px */
    --space-12: 3rem;     /* 48px */

    /* Borders */
    --radius-sm: 0.375rem;  /* 6px */
    --radius-md: 0.5rem;    /* 8px */
    --radius-lg: 0.75rem;   /* 12px */
    --radius-xl: 1rem;      /* 16px */
    --radius-full: 9999px;

    /* Shadows */
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.04);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;

    /* Sidebar */
    --sidebar-width: 260px;
    --sidebar-collapsed-width: 0px;

    /* Z-index */
    --z-sidebar: 100;
    --z-overlay: 90;
    --z-header: 80;
    --z-dropdown: 110;
    --z-modal: 120;
    --z-toast: 130;
}

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

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    line-height: var(--line-height-normal);
    color: var(--color-text);
    background-color: var(--color-bg);
    min-height: 100vh;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

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

a:hover {
    color: var(--color-primary-hover);
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-tight);
    color: var(--color-text);
}

h1 { font-size: var(--font-size-2xl); }
h2 { font-size: var(--font-size-xl); }
h3 { font-size: var(--font-size-lg); }
h4 { font-size: var(--font-size-md); }

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    line-height: var(--line-height-normal);
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
    min-height: 40px;
}

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

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

.btn svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-text-inverse);
    border-color: var(--color-primary);
}
.btn-primary:hover:not(:disabled) {
    background-color: var(--color-primary-hover);
    border-color: var(--color-primary-hover);
    color: var(--color-text-inverse) !important;
}

.btn-secondary {
    background-color: var(--color-surface);
    color: var(--color-text);
    border-color: var(--color-border);
}
.btn-secondary:hover:not(:disabled) {
    background-color: var(--color-surface-hover);
    border-color: var(--color-border-hover);
    color: var(--color-primary) !important;
}

.btn-danger {
    background-color: var(--color-danger);
    color: var(--color-text-inverse);
    border-color: var(--color-danger);
}
.btn-danger:hover:not(:disabled) {
    background-color: var(--color-danger-hover);
    border-color: var(--color-danger-hover);
    color: var(--color-text-inverse) !important;
}

.btn-success {
    background-color: var(--color-success);
    color: var(--color-text-inverse);
    border-color: var(--color-success);
}
.btn-success:hover:not(:disabled) {
    background-color: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    color: var(--color-text-inverse) !important;
}

.btn-ghost {
    background-color: transparent;
    color: var(--color-text-secondary);
    border-color: transparent;
}
.btn-ghost:hover:not(:disabled) {
    background-color: var(--color-surface-hover);
    color: var(--color-text);
}

.btn-soft {
    background-color: var(--color-primary-light);
    color: var(--color-primary);
    border-color: transparent;
}
.btn-soft:hover:not(:disabled) {
    background-color: var(--color-primary);
    color: white !important;
}

.btn-sm {
    padding: var(--space-1) var(--space-3);
    font-size: var(--font-size-sm);
    min-height: 32px;
}

.btn-lg {
    padding: var(--space-3) var(--space-6);
    font-size: var(--font-size-md);
    min-height: 48px;
}

.btn-icon {
    padding: var(--space-2);
    min-width: 40px;
}

/* --- Form Elements --- */
.form-group {
    margin-bottom: var(--space-5);
}

.form-label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text);
    margin-bottom: var(--space-1);
}

.form-label .required {
    color: var(--color-danger);
    margin-left: 2px;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: var(--space-2) var(--space-3);
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    color: var(--color-text);
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    min-height: 40px;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

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

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

.form-error {
    font-size: var(--font-size-xs);
    color: var(--color-danger);
    margin-top: var(--space-1);
}

.form-hint {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    margin-top: var(--space-1);
}

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

/* --- Search Input --- */
.search-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.search-input-wrapper .form-input {
    padding-left: 2.5rem !important;
}

.search-icon {
    position: absolute;
    left: 0.875rem;
    color: var(--color-text-muted);
    pointer-events: none;
    z-index: 10;
}

/* --- Input Group --- */
.input-group {
    display: flex;
    align-items: stretch;
    width: 100%;
}

.input-group .form-input {
    flex: 1;
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
}

.input-group .btn {
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
    border-left: none;
    min-height: 40px;
}

/* --- Toggle (Yes/No) --- */
.toggle-group {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.toggle-switch {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    cursor: pointer;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
}

.toggle-switch input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-track {
    position: relative;
    width: 52px;
    height: 28px;
    background-color: var(--color-danger);
    border-radius: var(--radius-full);
    transition: background-color var(--transition-base);
    flex-shrink: 0;
}

.toggle-track::after {
    content: '';
    position: absolute;
    top: 3px;
    left: 3px;
    width: 22px;
    height: 22px;
    background-color: white;
    border-radius: 50%;
    transition: transform var(--transition-base);
    box-shadow: var(--shadow-sm);
}

.toggle-switch input:checked + .toggle-track {
    background-color: var(--color-success);
}

.toggle-switch input:checked + .toggle-track::after {
    transform: translateX(24px);
}

.toggle-label-yes,
.toggle-label-no {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    min-width: 20px;
    text-align: center;
}

.toggle-label-no {
    color: var(--color-danger);
}

.toggle-label-yes {
    color: var(--color-success);
}

.toggle-switch input:checked ~ .toggle-label-no {
    color: var(--color-text-muted);
}

.toggle-switch input:not(:checked) ~ .toggle-label-yes {
    color: var(--color-text-muted);
}

/* --- Cards --- */
.card {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xs);
    overflow: hidden;
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4) var(--space-5);
    border-bottom: 1px solid var(--color-border);
}

.card-header h2,
.card-header h3 {
    font-size: var(--font-size-md);
    font-weight: var(--font-weight-semibold);
}

.card-body {
    padding: var(--space-5);
}

.card-footer {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-5);
    border-top: 1px solid var(--color-border);
    background-color: var(--color-bg);
}

/* --- Tables --- */
.table-wrapper {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--font-size-base);
}

.table th,
.table td {
    padding: var(--space-3) var(--space-4);
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

.table th {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    background-color: var(--color-bg);
    white-space: nowrap;
}

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

.table td {
    vertical-align: middle;
}

/* --- Badges --- */
.badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: 2px var(--space-2);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    border-radius: var(--radius-full);
    white-space: nowrap;
}

.badge-success {
    background-color: var(--color-success-light);
    color: var(--color-success);
    border: 1px solid var(--color-success-border);
}

.badge-warning {
    background-color: var(--color-warning-light);
    color: var(--color-warning);
    border: 1px solid var(--color-warning-border);
}

.badge-danger {
    background-color: var(--color-danger-light);
    color: var(--color-danger);
    border: 1px solid var(--color-danger-border);
}

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

.badge-neutral {
    background-color: var(--color-surface-hover);
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
}

/* --- Alerts / Toast --- */
.alert {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    border: 1px solid;
}

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

.alert-danger {
    background-color: var(--color-danger-light);
    border-color: var(--color-danger-border);
    color: var(--color-danger);
}

.alert-warning {
    background-color: var(--color-warning-light);
    border-color: var(--color-warning-border);
    color: var(--color-warning);
}

.alert-info {
    background-color: var(--color-info-light);
    border-color: var(--color-info);
    color: var(--color-info);
}

/* --- Toast notifications --- */
.toast-container {
    position: fixed;
    top: var(--space-4);
    right: var(--space-4);
    z-index: var(--z-toast);
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.toast {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    font-size: var(--font-size-sm);
    min-width: 280px;
    max-width: 400px;
    animation: toastIn 0.3s ease;
}

.toast.removing {
    animation: toastOut 0.3s ease forwards;
}

@keyframes toastIn {
    from { opacity: 0; transform: translateX(100%); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes toastOut {
    from { opacity: 1; transform: translateX(0); }
    to { opacity: 0; transform: translateX(100%); }
}

/* --- Modal --- */
.modal-backdrop {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: var(--z-modal);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-4);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-base), visibility var(--transition-base);
}

.modal-backdrop.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-width: 560px;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.95);
    transition: transform var(--transition-base);
}

.modal-backdrop.active .modal {
    transform: scale(1);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4) var(--space-5);
    border-bottom: 1px solid var(--color-border);
}

.modal-header h3 {
    font-size: var(--font-size-lg);
}

.modal-close {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--color-text-muted);
    padding: var(--space-1);
    border-radius: var(--radius-sm);
    transition: color var(--transition-fast);
}

.modal-close:hover {
    color: var(--color-text);
}

.modal-body {
    padding: var(--space-5);
}

.modal-footer {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-5);
    border-top: 1px solid var(--color-border);
}

/* --- Empty State --- */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-12) var(--space-4);
    text-align: center;
}

.empty-state svg {
    width: 64px;
    height: 64px;
    color: var(--color-text-muted);
    margin-bottom: var(--space-4);
}

.empty-state h3 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--space-2);
}

.empty-state p {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-6);
    max-width: 400px;
}

/* --- Loading / Spinner --- */
.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

.spinner-lg {
    width: 40px;
    height: 40px;
    border-width: 3px;
}

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

.loading-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.8);
    z-index: 10;
    border-radius: inherit;
}

/* --- Utility Classes --- */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--color-text-muted); }
.text-secondary { color: var(--color-text-secondary); }
.text-success { color: var(--color-success); }
.text-danger { color: var(--color-danger); }
.text-sm { font-size: var(--font-size-sm); }
.text-xs { font-size: var(--font-size-xs); }
.font-medium { font-weight: var(--font-weight-medium); }
.font-semibold { font-weight: var(--font-weight-semibold); }

.mt-1 { margin-top: var(--space-1); }
.mt-2 { margin-top: var(--space-2); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mb-2 { margin-bottom: var(--space-2); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mr-2 { margin-right: var(--space-2); }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.flex-1 { flex: 1; }
.flex-wrap { flex-wrap: wrap; }

.w-full { width: 100%; }
.hidden { display: none !important; }
.relative { position: relative; }

/* --- Scrollbar Styling --- */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background-color: var(--color-border-hover);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background-color: var(--color-text-muted);
}