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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--tg-theme-bg-color, #ffffff);
    color: var(--tg-theme-text-color, #000000);
    max-width: 480px;
    margin: 0 auto;
    padding-bottom: 70px;
    min-height: 100vh;
}

#app {
    padding: 16px;
}

/* Tab Bar */
#tab-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    display: flex;
    justify-content: space-around;
    background: var(--tg-theme-secondary-bg-color, #f0f0f0);
    border-top: 1px solid rgba(128, 128, 128, 0.2);
    padding: 8px 0;
    padding-bottom: max(8px, env(safe-area-inset-bottom));
    z-index: 100;
    max-width: 480px;
    margin: 0 auto;
}

.tab {
    display: flex;
    flex-direction: column;
    align-items: center;
    background: none;
    border: none;
    color: var(--tg-theme-hint-color, #999999);
    font-size: 10px;
    cursor: pointer;
    padding: 4px 12px;
    transition: color 0.2s;
    -webkit-tap-highlight-color: transparent;
}

.tab.active {
    color: var(--tg-theme-button-color, #3390ec);
}

.tab-icon {
    font-size: 20px;
    margin-bottom: 2px;
}

/* Cards */
.card {
    background: var(--tg-theme-secondary-bg-color, #f5f5f5);
    border-radius: 12px;
    padding: 16px;
    margin-bottom: 12px;
    transition: transform 0.2s;
}

.card:active {
    transform: scale(0.98);
}

.card-title {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
}

.card-subtitle {
    font-size: 13px;
    color: var(--tg-theme-hint-color, #999);
    margin-bottom: 4px;
}

/* Status Badge */
.badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.badge-active {
    background: #34c75920;
    color: #34c759;
}

.badge-expired {
    background: #ff3b3020;
    color: #ff3b30;
}

.badge-none {
    background: #8e8e9320;
    color: #8e8e93;
}

/* Status Card */
.status-card {
    text-align: center;
    padding: 24px 16px;
}

.status-card .plan-name {
    font-size: 20px;
    font-weight: 700;
    margin: 12px 0 4px;
}

.status-card .expires {
    color: var(--tg-theme-hint-color, #999);
    font-size: 14px;
}

.status-card .big-icon {
    font-size: 48px;
}

/* Buttons */
.btn {
    display: block;
    width: 100%;
    padding: 14px;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    text-align: center;
    transition: opacity 0.2s;
    -webkit-tap-highlight-color: transparent;
}

.btn:active {
    opacity: 0.7;
}

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

.btn-secondary {
    background: var(--tg-theme-secondary-bg-color, #f0f0f0);
    color: var(--tg-theme-text-color, #000);
}

.btn-trial {
    background: linear-gradient(135deg, #34c759, #30d158);
    color: #fff;
}

.btn + .btn {
    margin-top: 8px;
}

/* Plan Cards */
.plan-card {
    position: relative;
    cursor: pointer;
    padding: 16px;
}

.plan-card.popular {
    border: 2px solid var(--tg-theme-button-color, #3390ec);
}

.plan-card .popular-badge {
    position: absolute;
    top: -10px;
    right: 12px;
    background: var(--tg-theme-button-color, #3390ec);
    color: var(--tg-theme-button-text-color, #fff);
    font-size: 11px;
    padding: 2px 8px;
    border-radius: 8px;
    font-weight: 600;
}

.plan-card .plan-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 4px;
}

.plan-card .plan-label {
    font-size: 16px;
    font-weight: 600;
}

.plan-card .plan-price {
    font-size: 18px;
    font-weight: 700;
    color: var(--tg-theme-button-color, #3390ec);
}

.plan-card .plan-days {
    font-size: 13px;
    color: var(--tg-theme-hint-color, #999);
}

.plan-card .plan-per-day {
    font-size: 12px;
    color: var(--tg-theme-hint-color, #999);
    margin-top: 4px;
}

/* Quick Actions */
.quick-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    margin-top: 12px;
}

.quick-action {
    background: var(--tg-theme-secondary-bg-color, #f5f5f5);
    border-radius: 12px;
    padding: 16px 12px;
    text-align: center;
    border: none;
    cursor: pointer;
    color: var(--tg-theme-text-color, #000);
    -webkit-tap-highlight-color: transparent;
}

.quick-action:active {
    opacity: 0.7;
}

.quick-action .qa-icon {
    font-size: 24px;
    margin-bottom: 4px;
}

.quick-action .qa-label {
    font-size: 13px;
}

/* Setup / Platform Tabs */
.platform-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
    overflow-x: auto;
}

.platform-tab {
    padding: 8px 16px;
    border-radius: 20px;
    border: none;
    background: var(--tg-theme-secondary-bg-color, #f0f0f0);
    color: var(--tg-theme-text-color, #000);
    font-size: 14px;
    cursor: pointer;
    white-space: nowrap;
    -webkit-tap-highlight-color: transparent;
}

.platform-tab.active {
    background: var(--tg-theme-button-color, #3390ec);
    color: var(--tg-theme-button-text-color, #fff);
}

/* Connection Info */
.vless-link {
    background: var(--tg-theme-secondary-bg-color, #f5f5f5);
    border-radius: 8px;
    padding: 12px;
    font-family: monospace;
    font-size: 12px;
    word-break: break-all;
    margin: 12px 0;
    position: relative;
}

.qr-container {
    text-align: center;
    margin: 16px 0;
}

.qr-container img {
    width: 200px;
    height: 200px;
    border-radius: 12px;
}

/* Instructions */
.instruction-step {
    display: flex;
    gap: 12px;
    margin-bottom: 12px;
}

.step-num {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--tg-theme-button-color, #3390ec);
    color: var(--tg-theme-button-text-color, #fff);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 600;
    flex-shrink: 0;
}

.step-text {
    font-size: 14px;
    padding-top: 4px;
}

.step-text a {
    color: var(--tg-theme-link-color, var(--tg-theme-button-color, #3390ec));
}

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

.profile-avatar {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: var(--tg-theme-button-color, #3390ec);
    color: var(--tg-theme-button-text-color, #fff);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    font-weight: 600;
    margin: 0 auto 8px;
}

.profile-name {
    font-size: 20px;
    font-weight: 600;
}

.profile-username {
    color: var(--tg-theme-hint-color, #999);
    font-size: 14px;
}

.stat-row {
    display: flex;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid rgba(128, 128, 128, 0.1);
}

.stat-label {
    color: var(--tg-theme-hint-color, #999);
    font-size: 14px;
}

.stat-value {
    font-size: 14px;
    font-weight: 600;
}

/* Referral */
.ref-link-box {
    background: var(--tg-theme-secondary-bg-color, #f5f5f5);
    border-radius: 8px;
    padding: 12px;
    font-size: 13px;
    word-break: break-all;
    margin: 8px 0;
}

/* Skeleton Loading */
.skeleton {
    background: linear-gradient(90deg,
        var(--tg-theme-secondary-bg-color, #f0f0f0) 25%,
        rgba(128,128,128,0.1) 50%,
        var(--tg-theme-secondary-bg-color, #f0f0f0) 75%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: 8px;
}

.skeleton-text {
    height: 16px;
    margin-bottom: 8px;
    width: 80%;
}

.skeleton-card {
    height: 100px;
    margin-bottom: 12px;
}

@keyframes shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* Section header */
.section-title {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 14px;
    color: var(--tg-theme-hint-color, #999);
    margin-bottom: 16px;
}

/* Toast */
.toast {
    position: fixed;
    bottom: 80px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--tg-theme-text-color, #000);
    color: var(--tg-theme-bg-color, #fff);
    padding: 10px 20px;
    border-radius: 20px;
    font-size: 14px;
    z-index: 200;
    opacity: 0;
    transition: opacity 0.3s;
    pointer-events: none;
}

.toast.show {
    opacity: 1;
}