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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background: var(--tg-theme-bg-color, #ffffff);
    color: var(--tg-theme-text-color, #000000);
    min-height: 100vh;
    padding: 16px;
}

#app {
    max-width: 480px;
    margin: 0 auto;
}

.screen {
    display: none;
    animation: fadeIn 0.3s ease;
}

.screen.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Loading Screen */
#loading-screen {
    text-align: center;
    padding: 60px 20px;
}

.loader {
    width: 48px;
    height: 48px;
    border: 4px solid var(--tg-theme-secondary-bg-color, #e0e0e0);
    border-top-color: var(--tg-theme-button-color, #3390ec);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto 24px;
}

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

#loading-screen h2 {
    font-size: 20px;
    margin-bottom: 8px;
}

#loading-screen p {
    color: var(--tg-theme-hint-color, #999999);
    font-size: 14px;
}

/* Header */
.header {
    text-align: center;
    padding: 20px 0 24px;
}

.header h1 {
    font-size: 24px;
    font-weight: 700;
}

.header .subtitle {
    color: var(--tg-theme-hint-color, #999999);
    font-size: 14px;
    margin-top: 4px;
}

/* Info Card */
.info-card {
    background: var(--tg-theme-secondary-bg-color, #f5f5f5);
    border-radius: 12px;
    padding: 16px;
    margin-bottom: 20px;
}

.info-row {
    display: flex;
    justify-content: space-between;
    padding: 6px 0;
}

.info-row .label {
    color: var(--tg-theme-hint-color, #999999);
    font-size: 14px;
}

.info-row .value {
    font-weight: 500;
    font-size: 14px;
}

.status-badge {
    padding: 2px 12px;
    border-radius: 20px;
    background: var(--tg-theme-button-color, #3390ec);
    color: white;
    font-size: 12px;
}

/* Monetag Container */
.monetag-container {
    background: var(--tg-theme-secondary-bg-color, #f5f5f5);
    border-radius: 12px;
    padding: 16px;
    margin-bottom: 16px;
}

.monetag-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
    font-size: 14px;
    font-weight: 600;
}

.monetag-header .badge {
    background: #ff6b6b;
    color: white;
    padding: 2px 10px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 700;
}

.monetag-wrapper {
    min-height: 200px;
    background: var(--tg-theme-bg-color, #ffffff);
    border-radius: 8px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ad-placeholder {
    color: var(--tg-theme-hint-color, #999999);
    font-size: 14px;
}

.hint {
    font-size: 12px;
    color: var(--tg-theme-hint-color, #999999);
    margin-top: 8px;
    text-align: center;
}

/* Progress Bar */
.progress-bar {
    width: 100%;
    height: 4px;
    background: var(--tg-theme-secondary-bg-color, #e0e0e0);
    border-radius: 2px;
    overflow: hidden;
    margin: 16px 0;
}

.progress-fill {
    height: 100%;
    background: var(--tg-theme-button-color, #3390ec);
    border-radius: 2px;
    transition: width 0.5s ease;
    width: 0%;
}

/* Buttons */
.btn {
    display: block;
    width: 100%;
    padding: 14px;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    margin-top: 8px;
}

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

.btn-primary {
    background: var(--tg-theme-button-color, #3390ec);
    color: var(--tg-theme-button-text-color, #ffffff);
}

.btn-primary:active:not(:disabled) {
    transform: scale(0.98);
}

.btn-success {
    background: #34c759;
    color: white;
}

.btn-danger {
    background: #ff3b30;
    color: white;
}

.btn-secondary {
    background: var(--tg-theme-secondary-bg-color, #e0e0e0);
    color: var(--tg-theme-text-color, #000000);
}

/* Footer */
.footer-text {
    text-align: center;
    font-size: 12px;
    color: var(--tg-theme-hint-color, #999999);
    margin-top: 16px;
}

/* Success Screen */
#success-screen {
    text-align: center;
    padding: 60px 20px;
}

.success-icon {
    font-size: 64px;
    margin-bottom: 16px;
}

#success-screen h2 {
    font-size: 24px;
    margin-bottom: 8px;
}

#success-screen p {
    color: var(--tg-theme-hint-color, #999999);
    margin-bottom: 24px;
}

/* Error Screen */
#error-screen {
    text-align: center;
    padding: 60px 20px;
}

.error-icon {
    font-size: 64px;
    margin-bottom: 16px;
}

#error-screen h2 {
    font-size: 20px;
    margin-bottom: 8px;
}

#error-screen p {
    color: var(--tg-theme-hint-color, #999999);
    margin-bottom: 24px;
}

/* Responsive */
@media (max-width: 380px) {
    body { padding: 12px; }
    .header h1 { font-size: 20px; }
    .info-card { padding: 12px; }
    .monetag-wrapper { min-height: 150px; }
}

/* Telegram Theme Variables */
:root {
    --tg-theme-bg-color: #ffffff;
    --tg-theme-text-color: #000000;
    --tg-theme-hint-color: #999999;
    --tg-theme-secondary-bg-color: #f5f5f5;
    --tg-theme-button-color: #3390ec;
    --tg-theme-button-text-color: #ffffff;
}

@media (prefers-color-scheme: dark) {
    :root {
        --tg-theme-bg-color: #1a1a1a;
        --tg-theme-text-color: #ffffff;
        --tg-theme-hint-color: #777777;
        --tg-theme-secondary-bg-color: #2a2a2a;
    }
}