/* ==========================================================================
   Main Stylesheet - AgendANTAS
   ========================================================================== */

@import url('variables.css');

/* ==========================================================================
   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-base);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    line-height: var(--line-height-base);
    color: var(--text-primary);
    background-color: var(--bg-body);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ==========================================================================
   Typography
   ========================================================================== */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-family-heading);
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-tight);
    color: var(--text-primary);
    margin-bottom: var(--spacing-4);
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-base); }

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

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

a:hover {
    color: var(--text-link-hover);
}

small {
    font-size: var(--font-size-sm);
}

strong, b {
    font-weight: var(--font-weight-semibold);
}

/* ==========================================================================
   Layout - App Structure
   ========================================================================== */

.app-container {
    display: flex;
    min-height: 100vh;
}

.main-wrapper {
    flex: 1;
    display: flex;
    flex-direction: column;
    margin-left: var(--sidebar-width);
    transition: margin-left var(--transition-base);
}

.sidebar-collapsed .main-wrapper {
    margin-left: var(--sidebar-collapsed-width);
}

.main-content {
    flex: 1;
    padding: var(--spacing-6);
    margin-top: var(--header-height);
}

/* ==========================================================================
   Header
   ========================================================================== */

.header {
    position: fixed;
    top: 0;
    right: 0;
    left: var(--sidebar-width);
    height: var(--header-height);
    background-color: var(--bg-header);
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--spacing-6);
    z-index: var(--z-fixed);
    transition: left var(--transition-base);
}

.sidebar-collapsed .header {
    left: var(--sidebar-collapsed-width);
}

.header-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
}

.header-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
}

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

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

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

/* Header Search */
.header-search {
    position: relative;
}

.header-search input {
    width: 280px;
    padding: var(--spacing-2) var(--spacing-4);
    padding-left: 40px;
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.header-search input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(231, 76, 60, 0.1);
}

.header-search svg {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    width: 18px;
    height: 18px;
    color: var(--text-muted);
}

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

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

.notification-btn:hover {
    background-color: var(--color-gray-100);
}

.notification-btn svg {
    width: 22px;
    height: 22px;
    color: var(--text-secondary);
}

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

/* Header User */
.header-user {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-2);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

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

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

.header-user.dropdown.open .dropdown-arrow {
    transform: rotate(180deg);
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    object-fit: cover;
}

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

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

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

/* ==========================================================================
   Sidebar
   ========================================================================== */

.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background-color: var(--bg-sidebar);
    color: var(--text-light);
    z-index: var(--z-fixed);
    overflow-y: auto;
    transition: width var(--transition-base);
}

.sidebar-collapsed .sidebar {
    width: var(--sidebar-collapsed-width);
}

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: center;
    height: var(--header-height);
    padding: 0 var(--spacing-4);
    background-color: var(--bg-sidebar-dark);
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    color: var(--color-white);
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
}

.sidebar-logo img {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
}

.sidebar-logo span {
    transition: opacity var(--transition-fast);
}

.sidebar-collapsed .sidebar-logo span {
    opacity: 0;
    width: 0;
    overflow: hidden;
}

/* Sidebar Navigation */
.sidebar-nav {
    padding: var(--spacing-4) 0;
}

.nav-section {
    margin-bottom: var(--spacing-4);
}

.nav-section-title {
    padding: var(--spacing-2) var(--spacing-6);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-gray-500);
}

.sidebar-collapsed .nav-section-title {
    display: none;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-3) var(--spacing-6);
    color: var(--color-gray-300);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    cursor: pointer;
    transition: all var(--transition-fast);
    border-left: 3px solid transparent;
}

.nav-item:hover {
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--color-white);
}

.nav-item.active {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--color-white);
    border-left-color: var(--color-primary);
}

.nav-item svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.nav-item span {
    transition: opacity var(--transition-fast);
}

.sidebar-collapsed .nav-item span {
    opacity: 0;
    width: 0;
    overflow: hidden;
}

.nav-item .nav-badge {
    margin-left: auto;
    padding: 2px 8px;
    background-color: var(--color-primary);
    color: var(--color-white);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    border-radius: var(--radius-full);
}

.sidebar-collapsed .nav-item .nav-badge {
    display: none;
}

/* Submenu */
.nav-submenu {
    display: none;
    padding-left: var(--spacing-10);
}

.nav-item.has-submenu.open + .nav-submenu {
    display: block;
}

.nav-submenu .nav-item {
    padding: var(--spacing-2) var(--spacing-4);
    font-size: var(--font-size-sm);
    border-left: none;
}

.nav-item .submenu-arrow {
    margin-left: auto;
    transition: transform var(--transition-fast);
}

.nav-item.has-submenu.open .submenu-arrow {
    transform: rotate(90deg);
}

/* ==========================================================================
   Cards
   ========================================================================== */

.card {
    background-color: var(--bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-4) var(--spacing-6);
    border-bottom: 1px solid var(--color-gray-200);
}

.card-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    margin: 0;
}

.card-body {
    padding: var(--spacing-6);
}

.card-footer {
    padding: var(--spacing-4) var(--spacing-6);
    border-top: 1px solid var(--color-gray-200);
    background-color: var(--color-gray-100);
}

/* ==========================================================================
   Stat Cards
   ========================================================================== */

.stat-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--spacing-6);
    margin-bottom: var(--spacing-6);
}

.stat-card {
    background-color: var(--bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    padding: var(--spacing-6);
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
}

.stat-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
}

.stat-icon svg {
    width: 28px;
    height: 28px;
    color: var(--color-white);
}

.stat-icon.primary { background-color: var(--color-primary); }
.stat-icon.secondary { background-color: var(--color-secondary); }
.stat-icon.success { background-color: var(--color-success); }
.stat-icon.warning { background-color: var(--color-warning); }
.stat-icon.info { background-color: var(--color-info); }

.stat-content {
    flex: 1;
}

.stat-value {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    line-height: 1;
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-top: var(--spacing-1);
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    padding: var(--spacing-2) var(--spacing-4);
    font-family: var(--font-family-base);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    line-height: 1.5;
    text-align: center;
    white-space: nowrap;
    vertical-align: middle;
    cursor: pointer;
    user-select: none;
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

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

.btn-sm {
    padding: var(--spacing-1) var(--spacing-3);
    font-size: var(--font-size-xs);
}

.btn-lg {
    padding: var(--spacing-3) var(--spacing-6);
    font-size: var(--font-size-base);
}

.btn-block {
    display: flex;
    width: 100%;
}

/* Button Variants */
.btn-primary {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-white);
}

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

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

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

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

.btn-success:hover {
    background-color: #229954;
    border-color: #229954;
}

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

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

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

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

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

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

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

/* ==========================================================================
   Forms
   ========================================================================== */

.form-group {
    margin-bottom: var(--spacing-4);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-2);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--text-primary);
}

.form-control {
    display: block;
    width: 100%;
    padding: var(--spacing-3) var(--spacing-4);
    font-family: var(--font-family-base);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    line-height: 1.5;
    color: var(--text-primary);
    background-color: var(--color-white);
    background-clip: padding-box;
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(231, 76, 60, 0.1);
}

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

.form-control:disabled {
    background-color: var(--color-gray-100);
    cursor: not-allowed;
}

.form-control.is-invalid {
    border-color: var(--color-danger);
}

.form-control.is-valid {
    border-color: var(--color-success);
}

.form-text {
    margin-top: var(--spacing-1);
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

.invalid-feedback {
    margin-top: var(--spacing-1);
    font-size: var(--font-size-sm);
    color: var(--color-danger);
}

/* Select */
.form-select {
    display: block;
    width: 100%;
    padding: var(--spacing-3) var(--spacing-4);
    padding-right: 40px;
    font-family: var(--font-family-base);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    line-height: 1.5;
    color: var(--text-primary);
    background-color: var(--color-white);
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23343a40' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 16px 12px;
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    appearance: none;
    cursor: pointer;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(231, 76, 60, 0.1);
}

/* Checkbox & Radio */
.form-check {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    margin-bottom: var(--spacing-2);
}

.form-check-input {
    width: 18px;
    height: 18px;
    margin: 0;
    cursor: pointer;
    accent-color: var(--color-primary);
}

.form-check-label {
    font-size: var(--font-size-sm);
    color: var(--text-primary);
    cursor: pointer;
}

/* ==========================================================================
   Tables
   ========================================================================== */

.table-container {
    overflow-x: auto;
}

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

.table th,
.table td {
    padding: var(--spacing-3) var(--spacing-4);
    text-align: left;
    border-bottom: 1px solid var(--color-gray-200);
}

.table th {
    font-weight: var(--font-weight-semibold);
    color: var(--text-secondary);
    background-color: var(--color-gray-100);
    text-transform: uppercase;
    font-size: var(--font-size-xs);
    letter-spacing: 0.05em;
}

.table tbody tr:hover {
    background-color: var(--color-gray-100);
}

.table-striped tbody tr:nth-child(odd) {
    background-color: var(--color-gray-100);
}

/* ==========================================================================
   Badges
   ========================================================================== */

.badge {
    display: inline-flex;
    align-items: center;
    padding: 2px 8px;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    line-height: 1.5;
    border-radius: var(--radius-full);
}

.badge-primary {
    background-color: rgba(231, 76, 60, 0.1);
    color: var(--color-primary);
}

.badge-secondary {
    background-color: rgba(52, 152, 219, 0.1);
    color: var(--color-secondary);
}

.badge-success {
    background-color: rgba(39, 174, 96, 0.1);
    color: var(--color-success);
}

.badge-warning {
    background-color: rgba(243, 156, 18, 0.1);
    color: var(--color-warning);
}

.badge-danger {
    background-color: rgba(231, 76, 60, 0.1);
    color: var(--color-danger);
}

.badge-info {
    background-color: rgba(52, 152, 219, 0.1);
    color: var(--color-info);
}

/* ==========================================================================
   Activity List
   ========================================================================== */

.activity-list {
    list-style: none;
}

.activity-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
    padding: var(--spacing-4);
    border-bottom: 1px solid var(--color-gray-200);
    transition: background-color var(--transition-fast);
}

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

.activity-item:hover {
    background-color: var(--color-gray-100);
}

.activity-date {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 50px;
    padding: var(--spacing-2);
    background-color: var(--color-gray-100);
    border-radius: var(--radius-md);
}

.activity-date .day {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    line-height: 1;
}

.activity-date .month {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    text-transform: uppercase;
}

.activity-info {
    flex: 1;
}

.activity-title {
    font-weight: var(--font-weight-medium);
    color: var(--text-primary);
    margin-bottom: var(--spacing-1);
}

.activity-meta {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.activity-status {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
}

.activity-count {
    padding: var(--spacing-1) var(--spacing-3);
    background-color: var(--color-gray-100);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
}

.activity-count.full {
    background-color: rgba(39, 174, 96, 0.1);
    color: var(--color-success);
}

.activity-count.partial {
    background-color: rgba(243, 156, 18, 0.1);
    color: var(--color-warning);
}

.partecipanti-list {
    margin-top: var(--spacing-2);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.4;
}

.partecipanti-list small {
    color: var(--color-primary);
}

/* Participants Grid (Modal) */
.participants-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: var(--spacing-4);
}

.participant-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: var(--spacing-3);
    background-color: var(--color-gray-50);
    border-radius: var(--radius-md);
    transition: background-color var(--transition-fast);
}

.participant-card:hover {
    background-color: var(--color-gray-100);
}

.participant-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: var(--spacing-2);
    border: 2px solid var(--color-primary);
}

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

.service-info-clickable:hover .activity-title {
    color: var(--color-primary);
}

/* ==========================================================================
   Alerts
   ========================================================================== */

.alert {
    padding: var(--spacing-4);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-4);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-3);
}

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

.alert-icon svg {
    width: 20px;
    height: 20px;
}

.alert-content {
    flex: 1;
}

.alert-title {
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-1);
}

.alert-message {
    font-size: var(--font-size-sm);
}

.alert-primary {
    background-color: rgba(231, 76, 60, 0.1);
    border: 1px solid rgba(231, 76, 60, 0.2);
    color: var(--color-primary-dark);
}

.alert-success {
    background-color: rgba(39, 174, 96, 0.1);
    border: 1px solid rgba(39, 174, 96, 0.2);
    color: #1e7e34;
}

.alert-warning {
    background-color: rgba(243, 156, 18, 0.1);
    border: 1px solid rgba(243, 156, 18, 0.2);
    color: #d68910;
}

.alert-danger {
    background-color: rgba(231, 76, 60, 0.1);
    border: 1px solid rgba(231, 76, 60, 0.2);
    color: var(--color-primary-dark);
}

.alert-info {
    background-color: rgba(52, 152, 219, 0.1);
    border: 1px solid rgba(52, 152, 219, 0.2);
    color: var(--color-secondary-dark);
}

/* ==========================================================================
   Modal
   ========================================================================== */

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-modal);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

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

.modal {
    background-color: var(--bg-card);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow: hidden;
    transform: scale(0.9);
    transition: transform var(--transition-base);
}

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

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-4) var(--spacing-6);
    border-bottom: 1px solid var(--color-gray-200);
}

.modal-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    margin: 0;
}

.modal-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border: none;
    background: transparent;
    cursor: pointer;
    border-radius: var(--radius-md);
    transition: background-color var(--transition-fast);
}

.modal-close:hover {
    background-color: var(--color-gray-100);
}

.modal-body {
    padding: var(--spacing-6);
    overflow-y: auto;
}

.modal-footer {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--spacing-3);
    padding: var(--spacing-4) var(--spacing-6);
    border-top: 1px solid var(--color-gray-200);
}

/* ==========================================================================
   Dropdown
   ========================================================================== */

.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    min-width: 200px;
    background-color: var(--bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-2) 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-fast);
    z-index: var(--z-dropdown);
}

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

.dropdown-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-2) var(--spacing-4);
    font-size: var(--font-size-sm);
    color: var(--text-primary);
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.dropdown-item:hover {
    background-color: var(--color-gray-100);
}

.dropdown-item svg {
    width: 18px;
    height: 18px;
    color: var(--text-secondary);
}

.dropdown-divider {
    height: 1px;
    background-color: var(--color-gray-200);
    margin: var(--spacing-2) 0;
}

/* ==========================================================================
   Loading Spinner
   ========================================================================== */

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--color-gray-200);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.spinner-sm {
    width: 20px;
    height: 20px;
    border-width: 2px;
}

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

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(255, 255, 255, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-modal);
}

/* ==========================================================================
   Toast Notifications
   ========================================================================== */

.toast-container {
    position: fixed;
    top: var(--spacing-6);
    right: var(--spacing-6);
    z-index: var(--z-tooltip);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
}

.toast {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-4);
    background-color: var(--bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    min-width: 300px;
    max-width: 400px;
    animation: slideIn 0.3s ease;
}

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

.toast-icon {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
}

.toast-content {
    flex: 1;
}

.toast-title {
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-sm);
}

.toast-message {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.toast-close {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border: none;
    background: transparent;
    cursor: pointer;
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    transition: background-color var(--transition-fast);
}

.toast-close:hover {
    background-color: var(--color-gray-100);
}

.toast.success .toast-icon { color: var(--color-success); }
.toast.error .toast-icon { color: var(--color-danger); }
.toast.warning .toast-icon { color: var(--color-warning); }
.toast.info .toast-icon { color: var(--color-info); }

/* ==========================================================================
   Utilities
   ========================================================================== */

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

.text-primary { color: var(--color-primary); }
.text-secondary { color: var(--text-secondary); }
.text-success { color: var(--color-success); }
.text-warning { color: var(--color-warning); }
.text-danger { color: var(--color-danger); }
.text-muted { color: var(--text-muted); }

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

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

.flex-column { flex-direction: column; }
.align-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: var(--spacing-2); }
.gap-4 { gap: var(--spacing-4); }
.gap-6 { gap: var(--spacing-6); }

.m-0 { margin: 0; }
.mt-2 { margin-top: var(--spacing-2); }
.mt-4 { margin-top: var(--spacing-4); }
.mt-6 { margin-top: var(--spacing-6); }
.mb-2 { margin-bottom: var(--spacing-2); }
.mb-4 { margin-bottom: var(--spacing-4); }
.mb-6 { margin-bottom: var(--spacing-6); }

.p-0 { padding: 0; }
.p-2 { padding: var(--spacing-2); }
.p-4 { padding: var(--spacing-4); }
.p-6 { padding: var(--spacing-6); }

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

.rounded { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-full { border-radius: var(--radius-full); }

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

.overflow-hidden { overflow: hidden; }
.overflow-auto { overflow: auto; }

.cursor-pointer { cursor: pointer; }

.truncate {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}