/**
 * AllTrekGroup Space - Main Stylesheet
 * 
 * CSS Variables y estilos globales
 */

/* ============================================
   CSS Variables
   ============================================ */
:root {
    /* Colors */
    --color-primary: #2b88c2;
    --color-primary-dark: #1f6a96;
    --color-primary-light: #3d9dd6;
    --color-secondary: #64748B;
    --color-success: #10B981;
    --color-success-light: #D1FAE5;
    --color-warning: #F59E0B;
    --color-warning-light: #FEF3C7;
    --color-danger: #EF4444;
    --color-danger-light: #FEE2E2;
    --color-info: #2b88c2;
    --color-info-light: #dff0f9;

    /* Grays */
    --color-gray-50: #F9FAFB;
    --color-gray-100: #F3F4F6;
    --color-gray-200: #E5E7EB;
    --color-gray-300: #D1D5DB;
    --color-gray-400: #9CA3AF;
    --color-gray-500: #6B7280;
    --color-gray-600: #4B5563;
    --color-gray-700: #374151;
    --color-gray-800: #1F2937;
    --color-gray-900: #111827;

    /* Background */
    --bg-body: #F3F4F6;
    --bg-card: #FFFFFF;
    --bg-navbar: #FFFFFF;

    /* Text */
    --text-primary: #111827;
    --text-secondary: #6B7280;
    --text-muted: #9CA3AF;
    --text-inverse: #FFFFFF;

    /* Borders */
    --border-color: #E5E7EB;
    --border-radius: 8px;
    --border-radius-sm: 4px;
    --border-radius-lg: 12px;
    --border-radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);

    /* Spacing */
    --spacing-1: 0.25rem;
    --spacing-2: 0.5rem;
    --spacing-3: 0.75rem;
    --spacing-4: 1rem;
    --spacing-5: 1.25rem;
    --spacing-6: 1.5rem;
    --spacing-8: 2rem;
    --spacing-10: 2.5rem;
    --spacing-12: 3rem;

    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 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: 1.875rem;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 200ms ease;
    --transition-slow: 300ms ease;

    /* Layout */
    --navbar-height: 64px;
    --container-max: 1280px;
    --sidebar-width: 280px;
}

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

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.5;
    color: var(--text-primary);
    background-color: var(--bg-body);
    min-height: 100vh;
}

/* ============================================
   Typography
   ============================================ */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 600;
    line-height: 1.25;
    margin-bottom: var(--spacing-4);
}

h1 {
    font-size: var(--font-size-3xl);
}

h2 {
    font-size: var(--font-size-2xl);
}

h3 {
    font-size: var(--font-size-xl);
}

h4 {
    font-size: var(--font-size-lg);
}

p {
    margin-bottom: var(--spacing-4);
}

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

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

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

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

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

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

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

/* ============================================
   Layout
   ============================================ */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-4);
}

.main-content {
    padding-top: calc(var(--navbar-height) + var(--spacing-6));
    padding-bottom: var(--spacing-12);
    min-height: calc(100vh - var(--navbar-height));
}

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-6);
    padding-bottom: var(--spacing-4);
    border-bottom: 1px solid var(--border-color);
}

.page-header h1 {
    margin: 0 0 var(--spacing-1) 0;
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
}

.page-header p {
    margin: 0;
    color: var(--text-muted);
}

.page-header .btn {
    flex-shrink: 0;
}

@media (max-width: 768px) {
    .page-header {
        flex-direction: column;
        align-items: stretch;
    }

    .page-header .btn {
        width: 100%;
    }
}

/* ============================================
   Navbar
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--navbar-height);
    background: var(--bg-navbar);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    box-shadow: var(--shadow-sm);
}

.navbar-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-4);
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    font-weight: 600;
    font-size: var(--font-size-lg);
    color: var(--text-primary);
}

.navbar-brand img {
    height: 40px;
    width: auto;
}

.navbar-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-6);
}

.navbar-nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    list-style: none;
}

.nav-link {
    display: flex;
    align-items: center;
    padding: var(--spacing-2) var(--spacing-3);
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    font-weight: 500;
    border-radius: var(--border-radius);
    transition: all var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-primary);
    background-color: var(--color-info-light);
}

.navbar-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 4px;
    width: 32px;
    height: 32px;
    padding: 4px;
    background: none;
    border: none;
    cursor: pointer;
}

.navbar-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--text-primary);
    transition: all var(--transition-fast);
}

/* User section */
.navbar-user {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
}

.navbar-user .btn {
    white-space: nowrap;
}

.navbar-user .btn svg {
    flex-shrink: 0;
}

/* Notifications */
.notifications-dropdown {
    position: relative;
}

.notifications-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: none;
    border: none;
    cursor: pointer;
    border-radius: var(--border-radius-full);
    transition: background-color var(--transition-fast);
    position: relative;
}

.notifications-toggle:hover {
    background-color: var(--color-gray-100);
}

.notifications-toggle svg {
    width: 24px;
    height: 24px;
    color: var(--text-secondary);
}

.notifications-badge {
    position: absolute;
    top: 4px;
    right: 4px;
    min-width: 18px;
    height: 18px;
    padding: 0 5px;
    background-color: var(--color-danger);
    color: white;
    font-size: 11px;
    font-weight: 600;
    border-radius: var(--border-radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
}

.notifications-menu {
    position: absolute;
    top: 100%;
    right: 0;
    width: 360px;
    max-height: 480px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--transition-normal);
    overflow: hidden;
}

.notifications-menu.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

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

.notifications-header h3 {
    margin: 0;
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
}

.notifications-header .btn-text {
    padding: 0.375rem 0.75rem;
    font-size: var(--font-size-xs);
    font-weight: 500;
    color: var(--color-primary);
    background: transparent;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.notifications-header .btn-text:hover {
    background: var(--color-gray-100);
    color: var(--color-primary-dark);
}

.notifications-list {
    max-height: 400px;
    overflow-y: auto;
}

.notifications-empty {
    padding: var(--spacing-8);
    text-align: center;
    color: var(--text-muted);
}

.notification-item {
    display: block;
    padding: var(--spacing-4);
    border-bottom: 1px solid var(--border-color);
    transition: background-color var(--transition-fast);
}

.notification-item:hover {
    background-color: var(--color-gray-50);
}

.notification-item.unread {
    background-color: var(--color-info-light);
}

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

/* User dropdown */
.user-dropdown {
    position: relative;
}

.user-toggle {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-2);
    background: none;
    border: none;
    cursor: pointer;
    border-radius: var(--border-radius);
    transition: background-color var(--transition-fast);
}

.user-toggle:hover {
    background-color: var(--color-gray-100);
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: var(--border-radius-full);
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.user-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.user-avatar span {
    color: white;
    font-weight: 600;
    font-size: var(--font-size-sm);
    text-transform: uppercase;
}

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

.dropdown-arrow {
    width: 16px;
    height: 16px;
    color: var(--text-muted);
    transition: transform var(--transition-fast);
}

.user-toggle[aria-expanded="true"] .dropdown-arrow {
    transform: rotate(180deg);
}

.user-menu {
    position: absolute;
    top: 100%;
    right: 0;
    min-width: 220px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--transition-normal);
    overflow: hidden;
}

.user-menu.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.user-info {
    padding: var(--spacing-4);
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.user-info strong {
    font-size: var(--font-size-sm);
}

.user-info small {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}

.user-role {
    display: inline-block;
    margin-top: var(--spacing-1);
    padding: 2px 8px;
    font-size: var(--font-size-xs);
    font-weight: 500;
    background: var(--color-gray-100);
    border-radius: var(--border-radius-full);
    color: var(--text-secondary);
}

.user-menu hr {
    border: none;
    border-top: 1px solid var(--border-color);
    margin: 0;
}

.user-menu-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-3) var(--spacing-4);
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    transition: background-color var(--transition-fast);
}

.user-menu-item:hover {
    background-color: var(--color-gray-50);
}

.user-menu-item svg {
    width: 18px;
    height: 18px;
    color: var(--text-muted);
}

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

.user-menu-item.text-danger svg {
    color: var(--color-danger);
}

/* ============================================
   Footer
   ============================================ */
.main-footer {
    padding: var(--spacing-6) 0;
    text-align: center;
    color: var(--text-muted);
    font-size: var(--font-size-sm);
    border-top: 1px solid var(--border-color);
    background: var(--bg-card);
}

/* ============================================
   Auth Pages
   ============================================ */
.auth-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: var(--spacing-4);
    background: linear-gradient(135deg, var(--color-gray-100) 0%, var(--color-gray-200) 100%);
}

.auth-container {
    width: 100%;
    max-width: 420px;
}

.auth-card {
    background: var(--bg-card);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-8);
}

.auth-header {
    text-align: center;
    margin-bottom: var(--spacing-6);
}

.auth-logo {
    height: 60px;
    width: auto;
    margin-bottom: var(--spacing-4);
}

.auth-header h1 {
    margin-bottom: var(--spacing-2);
}

.auth-header p {
    color: var(--text-muted);
    margin-bottom: 0;
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4);
}

.auth-footer {
    margin-top: var(--spacing-6);
    text-align: center;
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

.auth-footer a {
    font-weight: 500;
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 768px) {
    .navbar-toggle {
        display: flex;
    }

    .navbar-menu {
        position: fixed;
        top: var(--navbar-height);
        left: 0;
        right: 0;
        bottom: 0;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: var(--spacing-4);
        background: var(--bg-card);
        border-top: 1px solid var(--border-color);
        opacity: 0;
        visibility: hidden;
        transform: translateY(-20px);
        transition: all var(--transition-normal);
    }

    .navbar-menu.active {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }

    .navbar-nav {
        flex-direction: column;
        gap: var(--spacing-1);
    }

    .nav-link {
        padding: var(--spacing-3) var(--spacing-4);
    }

    .navbar-user {
        margin-top: auto;
        padding-top: var(--spacing-4);
        border-top: 1px solid var(--border-color);
        flex-direction: column;
        align-items: stretch;
        gap: var(--spacing-3);
    }

    .navbar-user .btn {
        width: 100%;
        justify-content: center;
    }

    .user-toggle {
        justify-content: flex-start;
    }

    .notifications-menu,
    .user-menu {
        position: relative;
        top: 0;
        width: 100%;
        box-shadow: none;
        border: 1px solid var(--border-color);
        margin-top: var(--spacing-2);
    }

    .user-name {
        display: block;
    }
}