* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --color-slate-50: #f8fafc;
    --color-slate-100: #f1f5f9;
    --color-slate-200: #e2e8f0;
    --color-slate-500: #64748b;
    --color-slate-600: #475569;
    --color-slate-700: #334155;
    --color-slate-800: #1e293b;
    --color-blue-50: #eff6ff;
    --color-blue-600: #2563eb;
    --color-blue-700: #1d4ed8;
    --color-blue-100: #dbeafe;
    --color-green-50: #f0fdf4;
    --color-green-100: #dcfce7;
    --color-green-600: #16a34a;
    --color-green-800: #166534;
    --color-red-600: #dc2626;
    --color-red-700: #b91c1c;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: var(--color-slate-800);
    min-height: 100vh;
    background: linear-gradient(to bottom right, var(--color-slate-50), var(--color-blue-50), var(--color-slate-100));
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

.header {
    text-align: center;
    margin-bottom: 3rem;
}

.header-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.header-icon svg {
    width: 3rem;
    height: 3rem;
    color: var(--color-blue-600);
}

.header h1 {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--color-slate-800);
    margin-bottom: 1rem;
}

.header p {
    font-size: 1.125rem;
    color: var(--color-slate-600);
    max-width: 42rem;
    margin: 0 auto;
}

.admin-button-container {
    display: flex;
    justify-content: flex-end;
    margin-bottom: 1rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: 0.375rem;
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
}

.btn-primary {
    background-color: var(--color-blue-600);
    color: white;
}

.btn-primary:hover {
    background-color: var(--color-blue-700);
}

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

.btn-outline:hover {
    background-color: var(--color-slate-50);
}

.btn-destructive {
    background-color: var(--color-red-600);
    color: white;
}

.btn-destructive:hover {
    background-color: var(--color-red-700);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-lg {
    padding: 0.75rem 1.5rem;
    font-size: 1.125rem;
    width: 100%;
    height: 3rem;
}

.btn-sm {
    padding: 0.375rem 0.75rem;
    font-size: 0.875rem;
}

.card {
    background: white;
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    margin-bottom: 2rem;
}

.card-header {
    padding: 1.5rem;
    background: linear-gradient(to right, var(--color-blue-600), var(--color-blue-700));
    color: white;
}

.card-header.admin {
    background: linear-gradient(to right, var(--color-slate-700), var(--color-slate-800));
}

.card-title {
    font-size: 1.5rem;
    font-weight: bold;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.card-description {
    color: var(--color-blue-100);
    opacity: 0.9;
}

.card-header.admin .card-description {
    color: var(--color-slate-200);
}

.card-content {
    padding: 1.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--color-slate-700);
}

.form-select,
.form-input {
    width: 100%;
    padding: 0.625rem;
    font-size: 1rem;
    border: 1px solid var(--color-slate-300);
    border-radius: 0.375rem;
    background-color: white;
    transition: border-color 0.2s;
}

.form-select:focus,
.form-input:focus {
    outline: none;
    border-color: var(--color-blue-600);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-input[type="password"] {
    font-family: monospace;
}

.tabs {
    max-width: 28rem;
    margin: 0 auto 2rem;
}

.tabs-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
    background: var(--color-slate-100);
    padding: 0.25rem;
    border-radius: 0.5rem;
}

.tab-trigger {
    padding: 0.5rem 1rem;
    background: transparent;
    border: none;
    border-radius: 0.375rem;
    cursor: pointer;
    font-weight: 500;
    color: var(--color-slate-600);
    transition: all 0.2s;
}

.tab-trigger.active {
    background: white;
    color: var(--color-slate-800);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.slots-container {
    max-width: 80rem;
    margin: 0 auto;
}

.slots-header {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--color-slate-800);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.slots-grid {
    display: grid;
    gap: 1rem;
    grid-template-columns: 1fr;
}

@media (min-width: 768px) {
    .slots-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.slot-card {
    background: white;
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    transition: box-shadow 0.2s;
}

.slot-card:hover {
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.slot-header {
    padding: 1rem;
    border-bottom: 1px solid var(--color-slate-200);
}

.slot-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-blue-700);
}

.slot-content {
    padding: 1rem;
}

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

.activity-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.5rem;
    border-radius: 0.375rem;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    transition: background-color 0.2s;
}

.activity-item.available {
    background-color: var(--color-green-50);
    color: var(--color-green-800);
}

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

.activity-item.taken {
    background-color: var(--color-slate-100);
    color: var(--color-slate-500);
}

.badge {
    padding: 0.25rem 0.625rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 0.25rem;
}

.badge-available {
    background-color: var(--color-green-600);
    color: white;
}

.badge-taken {
    background-color: var(--color-slate-400);
    color: white;
}

.badge-name {
    background-color: var(--color-blue-600);
    color: white;
}

.pledges-view {
    max-width: 80rem;
    margin: 0 auto;
}

.date-section {
    background: white;
    border: 1px solid var(--color-slate-200);
    border-radius: 0.5rem;
    padding: 1rem;
    margin-bottom: 1rem;
}

.date-title {
    font-size: 1.25rem;
    font-weight: bold;
    color: var(--color-slate-800);
    margin-bottom: 1rem;
}

.pledge-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem;
    background-color: var(--color-blue-50);
    border-radius: 0.375rem;
    margin-bottom: 0.75rem;
    transition: background-color 0.2s;
}

.pledge-item:hover {
    background-color: var(--color-blue-100);
}

.pledge-info p {
    margin-bottom: 0.25rem;
}

.pledge-activity {
    font-weight: 600;
    color: var(--color-slate-800);
}

.pledge-time {
    font-size: 0.875rem;
    color: var(--color-slate-600);
}

.empty-state {
    text-align: center;
    padding: 3rem;
    color: var(--color-slate-500);
}

.empty-state svg {
    width: 4rem;
    height: 4rem;
    margin: 0 auto 1rem;
    opacity: 0.5;
}

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

table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    text-align: left;
    padding: 0.75rem;
    border-bottom: 1px solid var(--color-slate-200);
}

th {
    font-weight: 600;
    color: var(--color-slate-700);
    background-color: var(--color-slate-50);
}

tr:hover {
    background-color: var(--color-slate-50);
}

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

.toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: white;
    padding: 1rem 1.5rem;
    border-radius: 0.5rem;
    box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    animation: slideIn 0.3s ease-out;
}

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

.toast.success {
    border-left: 4px solid var(--color-green-600);
}

.toast.error {
    border-left: 4px solid var(--color-red-600);
}

.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: 1000;
}

.modal {
    background: white;
    border-radius: 0.5rem;
    padding: 1.5rem;
    max-width: 28rem;
    width: 90%;
    box-shadow: 0 20px 25px rgba(0, 0, 0, 0.15);
}

.modal-header {
    margin-bottom: 1rem;
}

.modal-title {
    font-size: 1.25rem;
    font-weight: bold;
    color: var(--color-slate-800);
}

.modal-description {
    color: var(--color-slate-600);
    margin-top: 0.5rem;
}

.modal-footer {
    display: flex;
    gap: 0.5rem;
    justify-content: flex-end;
    margin-top: 1.5rem;
}

.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.admin-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 2rem;
}

.admin-title {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--color-slate-800);
}

.admin-actions {
    display: flex;
    gap: 0.5rem;
}

@media (max-width: 768px) {
    .header h1 {
        font-size: 2rem;
    }

    .admin-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .admin-actions {
        width: 100%;
        flex-direction: column;
    }
}