:root {
    --bg-color: var(--tg-theme-bg-color, #1c1c1e);
    --text-color: var(--tg-theme-text-color, #ffffff);
    --hint-color: var(--tg-theme-hint-color, #8e8e93);
    --link-color: var(--tg-theme-link-color, #0a84ff);
    --button-color: var(--tg-theme-button-color, #0a84ff);
    --button-text-color: var(--tg-theme-button-text-color, #ffffff);
    --secondary-bg-color: var(--tg-theme-secondary-bg-color, #2c2c2e);
    
    --glass-bg: rgba(44, 44, 46, 0.6);
    --glass-border: rgba(255, 255, 255, 0.1);
    --danger-color: #ff453a;
    --success-color: #32d74b;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    margin: 0;
    padding: 16px;
    box-sizing: border-box;
    -webkit-font-smoothing: antialiased;
}

.glass-container {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 20px;
    box-shadow: 0 4px 24px rgba(0,0,0,0.2);
}

header {
    text-align: center;
    margin-bottom: 20px;
}

.logo {
    font-size: 24px;
    font-weight: 700;
    color: var(--button-color);
    letter-spacing: -0.5px;
}

header p {
    margin: 4px 0 0;
    color: var(--hint-color);
    font-size: 14px;
}

/* Tabs */
.tabs {
    display: flex;
    background: var(--secondary-bg-color);
    border-radius: 10px;
    padding: 4px;
    margin-bottom: 20px;
}

.tab-btn {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--hint-color);
    padding: 8px 0;
    font-size: 14px;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.tab-btn.active {
    background: var(--bg-color);
    color: var(--text-color);
    box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

.tab-pane {
    display: none;
    animation: fadeIn 0.3s ease;
}

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

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(5px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Forms */
.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    font-weight: 500;
    color: var(--hint-color);
}

input, select {
    width: 100%;
    padding: 12px;
    border-radius: 10px;
    border: 1px solid var(--glass-border);
    background: var(--secondary-bg-color);
    color: var(--text-color);
    font-size: 16px;
    box-sizing: border-box;
    transition: border-color 0.2s ease;
    outline: none;
}

input:focus, select:focus {
    border-color: var(--button-color);
}

.section-title {
    margin: 24px 0 16px;
    font-size: 16px;
    color: var(--button-color);
    border-bottom: 1px solid var(--glass-border);
    padding-bottom: 8px;
}

.input-row {
    display: flex;
    gap: 8px;
}

.input-row input {
    flex: 1;
}

/* Buttons */
button {
    width: 100%;
    padding: 14px;
    border-radius: 10px;
    border: none;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: opacity 0.2s ease;
}

button:active {
    opacity: 0.8;
}

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

.btn-secondary {
    background: var(--secondary-bg-color);
    color: var(--button-color);
    width: auto;
    padding: 12px 20px;
}

.btn-danger {
    background: rgba(255, 69, 58, 0.1);
    color: var(--danger-color);
}

.btn-action {
    background: rgba(10, 132, 255, 0.1);
    color: var(--link-color);
    padding: 8px 16px;
    font-size: 14px;
    width: auto;
}

.btn-cancel {
    background: var(--secondary-bg-color);
    color: var(--text-color);
}

/* Lists */
.search-box {
    margin-bottom: 16px;
}

.list-container {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.item-card {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--secondary-bg-color);
    padding: 12px 16px;
    border-radius: 12px;
    border: 1px solid var(--glass-border);
}

.item-info h4 {
    margin: 0 0 6px;
    font-size: 16px;
}

.item-meta {
    font-size: 13px;
    color: var(--hint-color);
    margin-bottom: 2px;
}

.item-meta span {
    color: var(--text-color);
    font-weight: 500;
}

.badge {
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
}

.badge-active {
    background: rgba(50, 215, 75, 0.2);
    color: var(--success-color);
}

.badge-expired {
    background: rgba(255, 69, 58, 0.2);
    color: var(--danger-color);
}

.empty, .loader, .error {
    text-align: center;
    padding: 24px;
    color: var(--hint-color);
    font-size: 14px;
}

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

.mb-4 {
    margin-bottom: 16px;
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 16px;
}

.modal-overlay.hidden {
    display: none;
}

.modal-content {
    width: 100%;
    max-width: 400px;
    animation: scaleIn 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes scaleIn {
    from { opacity: 0; transform: scale(0.9); }
    to { opacity: 1; transform: scale(1); }
}

.modal-content h3 {
    margin: 0 0 4px;
}

.subtitle {
    margin: 0 0 20px;
    color: var(--button-color);
    font-weight: 600;
    font-size: 14px;
}

.modal-actions {
    display: flex;
    gap: 12px;
    margin-top: 24px;
}

.modal-actions button {
    flex: 1;
}