/**
 * Portal de Tareas SEO - Estilos
 * Gecko Studio 2026
 */

/* ==========================================================================
   Variables
   ========================================================================== */
:root {
    /* Colors — Anti-Slop Stone Palette */
    --color-primary: #a3e635;
    --color-primary-dark: #84cc16;
    --color-success: #a3e635;
    --color-success-dark: #84cc16;
    --color-warning: #f59e0b;
    --color-warning-dark: #d97706;
    --color-danger: #ef4444;
    --color-danger-dark: #dc2626;

    --color-gray-50: #fafaf9;
    --color-gray-100: #f5f5f4;
    --color-gray-200: #e7e5e4;
    --color-gray-300: #d6d3d1;
    --color-gray-400: #a8a29e;
    --color-gray-500: #78716c;
    --color-gray-600: #57534e;
    --color-gray-700: #44403c;
    --color-gray-800: #292524;
    --color-gray-900: #1c1917;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;

    /* Typography */
    --font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;

    /* Border radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);

    /* Layout */
    --navbar-height: 64px;
    --sidebar-width: 280px;
    --max-width: 1200px;
}

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

* {
    margin: 0;
    padding: 0;
}

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

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-gray-800);
    background-color: var(--color-gray-50);
    min-height: 100vh;
}

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

a:hover {
    text-decoration: underline;
}

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

/* ==========================================================================
   Utilities
   ========================================================================== */
.text-muted { color: var(--color-gray-500); }
.text-danger { color: var(--color-danger); }
.text-success { color: var(--color-success); }
.text-warning { color: var(--color-warning); }

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-sm);
    font-weight: 500;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.15s ease;
    text-decoration: none;
}

.btn:hover {
    text-decoration: none;
}

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

.btn-block {
    width: 100%;
}

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

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

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

.btn-success:hover {
    background: var(--color-success-dark);
}

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

.btn-warning:hover {
    background: var(--color-warning-dark);
}

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

.btn-danger:hover {
    background: var(--color-danger-dark);
}

.btn-outline {
    background: transparent;
    border-color: var(--color-gray-300);
    color: var(--color-gray-700);
}

.btn-outline:hover {
    background: var(--color-gray-100);
    border-color: var(--color-gray-400);
}

.btn-outline.btn-danger {
    border-color: var(--color-danger);
    color: var(--color-danger);
    background: transparent;
}

.btn-outline.btn-danger:hover {
    background: var(--color-danger);
    color: white;
}

/* ==========================================================================
   Forms
   ========================================================================== */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-gray-700);
    margin-bottom: var(--spacing-xs);
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="date"],
textarea,
select {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-base);
    font-family: var(--font-family);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    background: white;
    transition: border-color 0.15s, box-shadow 0.15s;
}

input:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgb(37 99 235 / 0.1);
}

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

.form-actions {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

/* ==========================================================================
   Alerts
   ========================================================================== */
.alert {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
}

.alert-error {
    background: #fef2f2;
    border: 1px solid #fecaca;
    color: #991b1b;
}

.alert-success {
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
    color: #166534;
}

.alert-icon {
    flex-shrink: 0;
}

/* ==========================================================================
   Navbar
   ========================================================================== */
.navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--navbar-height);
    padding: 0 var(--spacing-xl);
    background: white;
    border-bottom: 1px solid var(--color-gray-200);
    box-shadow: var(--shadow-sm);
}

.navbar-brand a {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 600;
    color: var(--color-gray-900);
    text-decoration: none;
}

.navbar-brand .logo {
    font-size: 1.5rem;
}

.navbar-menu {
    display: flex;
    gap: var(--spacing-md);
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--color-gray-600);
    border-radius: var(--radius-md);
    transition: all 0.15s;
    text-decoration: none;
}

.nav-link:hover {
    background: var(--color-gray-100);
    color: var(--color-gray-900);
    text-decoration: none;
}

.nav-link.active {
    background: var(--color-primary);
    color: white;
}

.navbar-user {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.user-info {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

.user-name {
    font-weight: 500;
    font-size: var(--font-size-sm);
    color: var(--color-gray-900);
}

.user-dept {
    font-size: var(--font-size-xs);
    color: var(--color-gray-500);
}

/* ==========================================================================
   Main Content
   ========================================================================== */
.main-content {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--spacing-xl);
}

/* ==========================================================================
   Page Header
   ========================================================================== */
.page-header {
    margin-bottom: var(--spacing-xl);
}

.page-header h1 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-gray-900);
}

.page-subtitle {
    color: var(--color-gray-500);
    margin-top: var(--spacing-xs);
}

.back-link {
    display: inline-block;
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
    margin-bottom: var(--spacing-md);
}

.back-link:hover {
    color: var(--color-primary);
}

/* ==========================================================================
   Stats Grid
   ========================================================================== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.stat-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.stat-icon {
    font-size: 2rem;
}

.stat-value {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-gray-900);
    line-height: 1;
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
}

/* ==========================================================================
   Section
   ========================================================================== */
.section {
    margin-bottom: var(--spacing-2xl);
}

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

.section-header h2 {
    font-size: var(--font-size-lg);
    font-weight: 600;
}

/* ==========================================================================
   Cards
   ========================================================================== */
.card {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-gray-200);
}

.card-title {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-gray-700);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--color-gray-200);
}

/* ==========================================================================
   Tasks List
   ========================================================================== */
.tasks-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.task-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    background: white;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-gray-200);
    transition: all 0.15s;
}

.task-card-link {
    text-decoration: none;
    color: inherit;
}

.task-card-link:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
    text-decoration: none;
}

.task-priority {
    flex-shrink: 0;
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    border-radius: var(--radius-sm);
}

.priority-urgente { background: #fef2f2; color: #991b1b; }
.priority-alta { background: #fff7ed; color: #9a3412; }
.priority-media { background: #fefce8; color: #854d0e; }
.priority-baja { background: #f0fdf4; color: #166534; }
.priority-normal { background: var(--color-gray-100); color: var(--color-gray-600); }

.task-content {
    flex: 1;
    min-width: 0;
}

.task-title {
    font-size: var(--font-size-base);
    font-weight: 500;
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-xs);
}

.task-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
}

.meta-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.task-status {
    flex-shrink: 0;
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: var(--font-size-xs);
    font-weight: 500;
    border-radius: var(--radius-full);
}

.status-pendiente { background: #fef2f2; color: #991b1b; }
.status-vista { background: #dbeafe; color: #1e40af; }
.status-en_proceso { background: #fef3c7; color: #92400e; }
.status-completada { background: #d1fae5; color: #065f46; }
.status-rechazada { background: var(--color-gray-200); color: var(--color-gray-600); }

/* ==========================================================================
   Task Detail
   ========================================================================== */
.task-detail-grid {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: var(--spacing-xl);
}

@media (max-width: 900px) {
    .task-detail-grid {
        grid-template-columns: 1fr;
    }
}

.task-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.task-header h1 {
    font-size: var(--font-size-xl);
}

.task-description {
    line-height: 1.8;
    color: var(--color-gray-700);
}

.status-current {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-base);
    font-weight: 600;
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
}

.status-form {
    margin-top: var(--spacing-md);
}

.status-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.reject-form {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-gray-200);
}

/* Info list */
.info-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.info-item {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--color-gray-100);
}

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

.info-item dt {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
}

.info-item dd {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-gray-900);
}

/* Notes */
.notes-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.note-item {
    padding: var(--spacing-md);
    background: var(--color-gray-50);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    line-height: 1.6;
}

/* Timeline */
.activity-timeline {
    position: relative;
    padding-left: var(--spacing-xl);
}

.activity-timeline::before {
    content: '';
    position: absolute;
    left: 0.75rem;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--color-gray-200);
}

.timeline-item {
    position: relative;
    padding-bottom: var(--spacing-lg);
}

.timeline-item:last-child {
    padding-bottom: 0;
}

.timeline-icon {
    position: absolute;
    left: calc(-1 * var(--spacing-xl) + 0.5rem);
    width: 1.5rem;
    height: 1.5rem;
    background: white;
    border: 2px solid var(--color-gray-200);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
}

.timeline-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: var(--spacing-xs);
}

.timeline-action {
    font-weight: 500;
    color: var(--color-gray-700);
}

.timeline-time {
    font-size: var(--font-size-xs);
    color: var(--color-gray-400);
}

.timeline-desc {
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
}

/* ==========================================================================
   Activity List
   ========================================================================== */
.activity-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.activity-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: white;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-gray-200);
}

.activity-icon {
    font-size: 1.25rem;
}

.activity-content {
    flex: 1;
}

.activity-text {
    font-weight: 500;
    color: var(--color-gray-700);
}

.activity-desc {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
    margin-top: var(--spacing-xs);
}

.activity-time {
    font-size: var(--font-size-xs);
    color: var(--color-gray-400);
    white-space: nowrap;
}

/* ==========================================================================
   Filters
   ========================================================================== */
.filters-bar {
    background: white;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-lg);
    border: 1px solid var(--color-gray-200);
}

.filters-form {
    display: flex;
    align-items: flex-end;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.filter-group label {
    font-size: var(--font-size-xs);
    font-weight: 500;
    color: var(--color-gray-500);
}

.filter-group select {
    width: auto;
    min-width: 150px;
}

/* ==========================================================================
   Pagination
   ========================================================================== */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--color-gray-200);
}

.pagination-link {
    padding: var(--spacing-sm) var(--spacing-md);
    background: white;
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    color: var(--color-gray-700);
    transition: all 0.15s;
}

.pagination-link:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    text-decoration: none;
}

.pagination-info {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
}

/* ==========================================================================
   Empty State
   ========================================================================== */
.empty-state {
    text-align: center;
    padding: var(--spacing-2xl);
    background: white;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-gray-200);
}

.empty-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.empty-state h3 {
    font-size: var(--font-size-lg);
    color: var(--color-gray-700);
    margin-bottom: var(--spacing-sm);
}

.empty-state p {
    color: var(--color-gray-500);
    margin-bottom: var(--spacing-lg);
}

/* ==========================================================================
   Error Page
   ========================================================================== */
.error-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 60vh;
}

.error-content {
    text-align: center;
}

.error-code {
    font-size: 6rem;
    font-weight: 700;
    color: var(--color-gray-200);
    line-height: 1;
}

.error-content h1 {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-sm);
}

.error-content p {
    color: var(--color-gray-500);
    margin-bottom: var(--spacing-xl);
}

.error-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
    margin-top: auto;
    padding: var(--spacing-lg) var(--spacing-xl);
    background: white;
    border-top: 1px solid var(--color-gray-200);
}

.footer-content {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
}

/* ==========================================================================
   Login Page
   ========================================================================== */
.page-login {
    display: flex;
    min-height: 100vh;
    background: #1c1917;
}

.login-container {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: var(--spacing-xl);
    position: relative;
    overflow: hidden;
}

.login-card {
    width: 100%;
    max-width: 400px;
    background: white;
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-xl);
    position: relative;
    z-index: 1;
}

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

.login-logo {
    font-size: 3rem;
    display: block;
    margin-bottom: var(--spacing-md);
}

.login-header h1 {
    font-size: var(--font-size-xl);
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-xs);
}

.login-header p {
    color: var(--color-gray-500);
    font-size: var(--font-size-sm);
}

.login-form .btn {
    margin-top: var(--spacing-md);
}

.login-footer {
    margin-top: var(--spacing-xl);
    text-align: center;
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
}

/* Background shapes */
.login-background {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
}

.bg-shape {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
}

.bg-shape-1 {
    width: 400px;
    height: 400px;
    top: -100px;
    right: -100px;
}

.bg-shape-2 {
    width: 300px;
    height: 300px;
    bottom: -50px;
    left: -50px;
}

.bg-shape-3 {
    width: 200px;
    height: 200px;
    top: 50%;
    left: 50%;
}

/* ==========================================================================
   Reference Link
   ========================================================================== */
.reference-link {
    display: block;
    padding: var(--spacing-sm);
    background: var(--color-gray-50);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    word-break: break-all;
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 768px) {
    .navbar {
        flex-wrap: wrap;
        height: auto;
        padding: var(--spacing-md);
    }

    .navbar-menu {
        order: 3;
        width: 100%;
        justify-content: center;
        margin-top: var(--spacing-sm);
        padding-top: var(--spacing-sm);
        border-top: 1px solid var(--color-gray-200);
    }

    .main-content {
        padding: var(--spacing-md);
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .task-card {
        flex-direction: column;
        align-items: flex-start;
    }

    .task-status {
        margin-top: var(--spacing-sm);
    }

    .filters-form {
        flex-direction: column;
        align-items: stretch;
    }

    .filter-group select {
        width: 100%;
    }

    .footer-content {
        flex-direction: column;
        gap: var(--spacing-sm);
        text-align: center;
    }
}