/* ==========================================================================
   HRTBEAT VPN - TELEGRAM MINI APP
   Aesthetic: Luxury Obsidian, Pure White & Shimmering Platinum / Silver
   ========================================================================== */

:root {
    /* Backgrounds: Deep Obsidian Black */
    --bg-main: #070709;
    --bg-gradient: radial-gradient(circle at 50% 0%, #15161c 0%, #070709 75%);
    --bg-surface: rgba(255, 255, 255, 0.035);
    --bg-surface-elevated: rgba(255, 255, 255, 0.065);
    --bg-surface-hover: rgba(255, 255, 255, 0.09);

    /* Borders: Metallic Silver Hairlines */
    --card-border: rgba(255, 255, 255, 0.11);
    --card-border-hover: rgba(255, 255, 255, 0.28);
    --card-border-silver: rgba(203, 213, 225, 0.35);

    /* Silver & Platinum Gradients */
    --silver-gradient: linear-gradient(135deg, #ffffff 0%, #e2e8f0 45%, #94a3b8 100%);
    --silver-metallic: linear-gradient(135deg, #ffffff 0%, #cbd5e1 35%, #64748b 70%, #94a3b8 100%);
    --silver-badge-bg: linear-gradient(135deg, rgba(255, 255, 255, 0.14) 0%, rgba(255, 255, 255, 0.04) 100%);
    --silver-tab-active: linear-gradient(135deg, #ffffff 0%, #e2e8f0 50%, #cbd5e1 100%);
    --silver-btn-bg: linear-gradient(135deg, #ffffff 0%, #f1f5f9 60%, #cbd5e1 100%);

    /* Typography Colors */
    --text-main: #ffffff;
    --text-silver: #f1f5f9;
    --text-sub: #a1a1aa;
    --text-muted: #71717a;
    --text-dark: #09090b;

    /* Functional Accents */
    --accent-silver: #e2e8f0;
    --accent-glow: rgba(255, 255, 255, 0.16);
    --success: #34d399;
    --success-bg: rgba(52, 211, 153, 0.12);
    --warning: #fbbf24;
    --danger: #f87171;
    --danger-bg: rgba(248, 113, 113, 0.12);

    /* Radii & Typography */
    --radius-xl: 22px;
    --radius-lg: 16px;
    --radius-md: 12px;
    --radius-sm: 8px;
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;

    /* Elevation & Shadows */
    --shadow-card: 0 12px 36px -4px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(255, 255, 255, 0.08);
    --shadow-silver-glow: 0 4px 20px rgba(255, 255, 255, 0.18);
    --shadow-silver-subtle: 0 2px 10px rgba(255, 255, 255, 0.08);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: var(--font-family);
    -webkit-tap-highlight-color: transparent;
}

body {
    background: var(--bg-main);
    background-image: var(--bg-gradient);
    background-attachment: fixed;
    color: var(--text-main);
    min-height: 100vh;
    padding: 16px;
    padding-bottom: 28px;
    overflow-x: hidden;
    line-height: 1.45;
}

.hidden {
    display: none !important;
}

/* ==========================================================================
   ACCESS DENIED / TESTING LOCK SCREEN
   ========================================================================== */
.access-denied-screen {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 85vh;
    padding: 16px;
}

.lock-card {
    background: var(--bg-surface-elevated);
    border: 1px solid var(--card-border-silver);
    backdrop-filter: blur(28px);
    -webkit-backdrop-filter: blur(28px);
    border-radius: var(--radius-xl);
    padding: 36px 24px;
    text-align: center;
    max-width: 360px;
    width: 100%;
    box-shadow: 0 24px 48px rgba(0, 0, 0, 0.7), 0 0 30px rgba(255, 255, 255, 0.05);
}

.lock-icon {
    font-size: 52px;
    margin-bottom: 18px;
    filter: drop-shadow(0 4px 12px rgba(255, 255, 255, 0.2));
}

.lock-card h2 {
    font-size: 22px;
    font-weight: 800;
    color: #ffffff;
    margin-bottom: 12px;
    background: var(--silver-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.lock-card p {
    font-size: 13px;
    color: var(--text-sub);
    line-height: 1.55;
    margin-bottom: 22px;
}

.admin-badge {
    display: inline-block;
    background: var(--silver-badge-bg);
    color: var(--text-silver);
    border: 1px solid var(--card-border-silver);
    padding: 6px 16px;
    border-radius: 24px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    margin-bottom: 24px;
}

/* ==========================================================================
   APP HEADER & PROFILE
   ========================================================================== */
.app-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 18px;
    padding: 2px 4px;
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 12px;
}

.avatar-ring {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--silver-metallic);
    padding: 2px;
    box-shadow: 0 0 16px rgba(255, 255, 255, 0.15);
    flex-shrink: 0;
}

.avatar-initials {
    width: 100%;
    height: 100%;
    background: #0d0e12;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 15px;
    color: #ffffff;
}

.user-info h3 {
    font-size: 15px;
    font-weight: 700;
    color: #ffffff;
    letter-spacing: -0.2px;
}

.status-pill {
    font-size: 11px;
    color: var(--success);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 4px;
    margin-top: 2px;
}

.refresh-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--card-border);
    color: var(--text-sub);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.25s ease;
}

.refresh-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #ffffff;
    border-color: rgba(255, 255, 255, 0.3);
}

.refresh-btn:active {
    transform: scale(0.92);
}

.refresh-btn.spinning svg {
    animation: refreshSpin 0.75s cubic-bezier(0.4, 0, 0.2, 1) infinite;
}

@keyframes refreshSpin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* ==========================================================================
   TAB NAVIGATION
   ========================================================================== */
.tab-nav {
    display: flex;
    background: rgba(18, 19, 24, 0.75);
    border: 1px solid var(--card-border);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 16px;
    padding: 4px;
    margin-bottom: 20px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

.tab-btn {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3px;
    background: transparent;
    border: none;
    color: var(--text-sub);
    padding: 8px 2px;
    border-radius: 12px;
    cursor: pointer;
    font-size: 11px;
    font-weight: 600;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.tab-btn * {
    pointer-events: none;
}

.tab-btn:hover {
    color: #ffffff;
}

.tab-btn.active {
    background: var(--silver-tab-active);
    color: var(--text-dark);
    font-weight: 700;
    box-shadow: 0 4px 16px rgba(255, 255, 255, 0.25);
}

.tab-icon {
    font-size: 16px;
}

/* Tab Content Visibility */
.tab-content {
    display: block;
    animation: fadeInTab 0.25s ease;
}

@keyframes fadeInTab {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: translateY(0); }
}

.tab-content.hidden {
    display: none !important;
}

/* ==========================================================================
   GLASS CARDS & CONTAINERS
   ========================================================================== */
.glass-card {
    background: var(--bg-surface);
    border: 1px solid var(--card-border);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: var(--radius-lg);
    padding: 18px;
    margin-bottom: 16px;
    box-shadow: var(--shadow-card);
    transition: border-color 0.25s ease, transform 0.2s ease;
}

.glass-card:hover {
    border-color: var(--card-border-hover);
}

.main-card {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.055) 0%, rgba(255, 255, 255, 0.015) 100%);
    border: 1px solid var(--card-border-silver);
    position: relative;
    overflow: hidden;
}

.main-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 14px;
}

.card-title {
    font-size: 13px;
    font-weight: 700;
    color: var(--text-sub);
    letter-spacing: 0.3px;
    text-transform: uppercase;
}

.badge {
    background: var(--silver-badge-bg);
    color: #ffffff;
    border: 1px solid var(--card-border-silver);
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.2px;
}

/* Traffic Display */
.traffic-display {
    display: flex;
    align-items: baseline;
    gap: 8px;
    margin-bottom: 14px;
}

.traffic-value {
    font-size: 34px;
    font-weight: 900;
    color: #ffffff;
    background: var(--silver-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.5px;
}

.traffic-sub {
    font-size: 13px;
    color: var(--text-muted);
    font-weight: 500;
}

/* Progress Bar */
.progress-bar-bg {
    width: 100%;
    height: 7px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 6px;
    overflow: hidden;
    margin-bottom: 16px;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.6);
}

.progress-bar-fill {
    height: 100%;
    background: var(--silver-metallic);
    border-radius: 6px;
    transition: width 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.35);
}

.card-footer {
    display: flex;
    justify-content: space-between;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding-top: 12px;
}

.meta-item {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.meta-label {
    font-size: 11px;
    color: var(--text-muted);
}

.meta-value {
    font-size: 13px;
    font-weight: 700;
    color: #ffffff;
}

.text-success {
    color: var(--success);
}

/* ==========================================================================
   QUICK ACTION BUTTONS & GRIDS
   ========================================================================== */
.action-grid {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 16px;
}

.action-card {
    display: flex;
    align-items: center;
    gap: 14px;
    background: var(--bg-surface);
    border: 1px solid var(--card-border);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-radius: var(--radius-md);
    padding: 14px 16px;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: var(--shadow-card);
}

.action-card:hover {
    border-color: rgba(255, 255, 255, 0.3);
    background: var(--bg-surface-elevated);
    transform: translateY(-1px);
}

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

.action-icon {
    font-size: 24px;
    filter: drop-shadow(0 2px 6px rgba(255, 255, 255, 0.15));
}

.action-title {
    font-size: 14px;
    font-weight: 700;
    color: #ffffff;
}

.action-desc {
    font-size: 11px;
    color: var(--text-sub);
    margin-top: 2px;
}

/* Status Banner */
.status-banner {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    background: rgba(255, 255, 255, 0.025);
}

.banner-icon {
    font-size: 22px;
}

.banner-title {
    font-size: 13px;
    font-weight: 700;
    color: #ffffff;
}

.banner-sub {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 1px;
}

/* Section Headings */
.section-heading {
    margin-bottom: 14px;
    letter-spacing: 0.4px;
    text-transform: uppercase;
    font-size: 12px;
    font-weight: 700;
    color: var(--text-sub);
}

/* ==========================================================================
   SERVERS LIST
   ========================================================================== */
.servers-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.server-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 16px;
    margin-bottom: 0;
}

.server-flag {
    font-size: 26px;
}

.server-details {
    flex: 1;
    margin-left: 14px;
}

.server-name {
    font-size: 15px;
    font-weight: 700;
    color: #ffffff;
}

.server-proto {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 2px;
}

.server-status {
    display: flex;
    align-items: center;
    gap: 10px;
}

.ping-badge {
    font-size: 11px;
    font-weight: 700;
    padding: 4px 9px;
    border-radius: 8px;
}

.ping-good {
    background: var(--success-bg);
    color: var(--success);
    border: 1px solid rgba(52, 211, 153, 0.3);
}

.btn-icon-copy {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--card-border);
    color: var(--text-silver);
    width: 32px;
    height: 32px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.2s ease;
}

.btn-icon-copy:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.35);
}

.btn-icon-copy:active {
    transform: scale(0.92);
}

/* ==========================================================================
   TARIFFS
   ========================================================================== */
.tariff-header-banner {
    background: var(--silver-badge-bg);
    border: 1px solid var(--card-border-silver);
    border-radius: var(--radius-md);
    padding: 12px 14px;
    margin-bottom: 16px;
    font-size: 12px;
    color: #ffffff;
    text-align: center;
}

.tariffs-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

/* Trial Period Card */
.trial-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 16px 18px;
    margin-bottom: 14px;
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.14) 0%, rgba(255, 255, 255, 0.03) 100%);
    border: 1px solid rgba(52, 211, 153, 0.4);
    border-radius: var(--radius-lg);
    box-shadow: 0 8px 24px rgba(16, 185, 129, 0.1);
}

.trial-badge {
    background: rgba(52, 211, 153, 0.2);
    color: #34d399;
    font-size: 10px;
    font-weight: 800;
    padding: 4px 8px;
    border-radius: 8px;
    text-transform: uppercase;
    letter-spacing: 0.4px;
}

.trial-content {
    flex: 1;
}

.trial-title {
    font-size: 14px;
    font-weight: 800;
    color: #ffffff;
    margin-bottom: 2px;
}

.trial-desc {
    font-size: 11px;
    color: var(--text-sub);
    line-height: 1.35;
}

/* Tariff Cards */
.tariff-card {
    position: relative;
    margin-bottom: 0;
    padding: 20px;
    border: 1px solid var(--card-border);
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.04) 0%, rgba(255, 255, 255, 0.015) 100%);
    transition: all 0.25s ease;
}

.tariff-card.popular {
    border: 1px solid var(--card-border-silver);
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.08) 0%, rgba(255, 255, 255, 0.025) 100%);
    box-shadow: 0 14px 40px rgba(0, 0, 0, 0.6), 0 0 20px rgba(255, 255, 255, 0.06);
}

.popular-tag {
    position: absolute;
    top: -10px;
    right: 18px;
    background: var(--silver-metallic);
    color: var(--text-dark);
    font-size: 10px;
    font-weight: 800;
    padding: 4px 11px;
    border-radius: 12px;
    letter-spacing: 0.3px;
    text-transform: uppercase;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
}

.discount-tag {
    position: absolute;
    top: -10px;
    right: 18px;
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    color: #ffffff;
    font-size: 10px;
    font-weight: 800;
    padding: 4px 11px;
    border-radius: 12px;
    letter-spacing: 0.3px;
    text-transform: uppercase;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
}

.vip-tag {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%) !important;
}

.tariff-top-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 6px;
}

.tariff-period {
    font-size: 16px;
    font-weight: 800;
    color: #ffffff;
}

.tariff-stars-badge {
    background: rgba(255, 215, 0, 0.12);
    border: 1px solid rgba(255, 215, 0, 0.3);
    color: #ffd700;
    font-size: 11px;
    font-weight: 700;
    padding: 3px 9px;
    border-radius: 12px;
    letter-spacing: 0.2px;
}

.tariff-price-row {
    display: flex;
    align-items: baseline;
    gap: 8px;
    margin-bottom: 12px;
}

.tariff-price {
    font-size: 24px;
    font-weight: 900;
    color: #ffffff;
    background: var(--silver-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.tariff-calc {
    font-size: 12px;
    color: var(--text-muted);
    font-weight: 500;
}

.tariff-features {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 16px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding-top: 10px;
}

.feature-item {
    font-size: 12px;
    color: var(--text-sub);
    line-height: 1.4;
}

/* ==========================================================================
   BUTTONS
   ========================================================================== */
.btn {
    width: 100%;
    padding: 13px 18px;
    border-radius: var(--radius-md);
    border: none;
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.22s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    text-align: center;
    letter-spacing: 0.2px;
    text-decoration: none;
}

/* Primary Button: Shimmering Pure White & Silver */
.btn-primary {
    background: var(--silver-btn-bg);
    color: var(--text-dark);
    font-weight: 800;
    box-shadow: var(--shadow-silver-glow);
    border: 1px solid rgba(255, 255, 255, 0.6);
}

.btn-primary:hover {
    background: #ffffff;
    box-shadow: 0 6px 26px rgba(255, 255, 255, 0.3);
    transform: translateY(-1px);
}

.btn-primary:active {
    transform: scale(0.98);
}

/* Secondary Button: Dark Obsidian with Silver Border */
.btn-secondary {
    background: rgba(255, 255, 255, 0.07);
    color: #ffffff;
    border: 1px solid var(--card-border);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(255, 255, 255, 0.25);
}

.btn-secondary:active {
    transform: scale(0.98);
}

.btn-small {
    width: auto;
    padding: 8px 14px;
    font-size: 12px;
    background: var(--silver-btn-bg);
    color: var(--text-dark);
    font-weight: 700;
    border: 1px solid rgba(255, 255, 255, 0.4);
    box-shadow: var(--shadow-silver-subtle);
}

.btn-success {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: #ffffff;
}

.btn-danger {
    background: linear-gradient(135deg, #ef4444 0%, #b91c1c 100%);
    color: #ffffff;
}

/* ==========================================================================
   PAYMENT MODAL & INVOICE FLOW
   ========================================================================== */
.payment-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    display: flex;
    align-items: flex-end;
    justify-content: center;
    z-index: 1000;
    animation: slideUp 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.modal-card {
    width: 100%;
    max-width: 480px;
    border-bottom-left-radius: 0;
    border-bottom-right-radius: 0;
    border-top-left-radius: 24px;
    border-top-right-radius: 24px;
    padding: 24px 20px 36px 20px;
    background: #0f1015;
    border: 1px solid var(--card-border-silver);
    border-bottom: none;
    box-shadow: 0 -12px 40px rgba(0, 0, 0, 0.8);
}

.modal-step {
    display: flex;
    flex-direction: column;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 8px;
}

.modal-header h3 {
    font-size: 18px;
    font-weight: 800;
    color: #ffffff;
}

.modal-tariff-sub {
    font-size: 12px;
    color: var(--text-muted);
    font-weight: 500;
}

.modal-close {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid var(--card-border);
    color: var(--text-sub);
    font-size: 20px;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
}

.modal-close:hover {
    background: rgba(255, 255, 255, 0.15);
    color: #ffffff;
}

.modal-price-wrap {
    display: flex;
    align-items: baseline;
    gap: 10px;
    margin-bottom: 6px;
}

.modal-price {
    font-size: 28px;
    font-weight: 900;
    color: #ffffff;
    background: var(--silver-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.modal-price-stars {
    font-size: 13px;
    color: #ffd700;
    font-weight: 700;
}

.modal-desc {
    font-size: 13px;
    color: var(--text-sub);
    margin-bottom: 18px;
}

.modal-methods {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.btn-method {
    display: flex;
    align-items: center;
    gap: 14px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    padding: 14px 16px;
    cursor: pointer;
    text-align: left;
    transition: all 0.2s ease;
}

.btn-method:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.35);
    transform: translateY(-1px);
}

.btn-method:active {
    transform: scale(0.98);
}

.btn-method * {
    pointer-events: none;
}

.method-icon {
    font-size: 24px;
}

.method-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
    flex: 1;
}

.method-title {
    font-size: 14px;
    font-weight: 700;
    color: #ffffff;
}

.method-sub {
    font-size: 11px;
    color: var(--text-muted);
}

.method-badge {
    font-size: 10px;
    font-weight: 700;
    padding: 3px 8px;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-sub);
    border: 1px solid var(--card-border);
}

.stars-badge {
    background: rgba(255, 215, 0, 0.12);
    border-color: rgba(255, 215, 0, 0.3);
    color: #ffd700;
}

.crypto-badge {
    background: rgba(59, 130, 246, 0.15);
    border-color: rgba(59, 130, 246, 0.3);
    color: #60a5fa;
}

/* Invoice Step */
.invoice-status-icon {
    font-size: 44px;
    text-align: center;
    margin: 10px 0 14px 0;
    filter: drop-shadow(0 4px 16px rgba(255, 255, 255, 0.2));
}

.invoice-summary-box {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--card-border-silver);
    border-radius: var(--radius-md);
    padding: 16px;
    text-align: center;
    margin-bottom: 20px;
}

.invoice-summary-title {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-sub);
    margin-bottom: 4px;
}

.invoice-summary-price {
    font-size: 26px;
    font-weight: 900;
    color: #ffffff;
    background: var(--silver-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 4px;
}

.invoice-summary-sub {
    font-size: 12px;
    color: var(--text-muted);
}

.invoice-actions {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.btn-link-back {
    background: transparent;
    border: none;
    color: var(--text-sub);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    padding: 8px;
    text-align: center;
    transition: color 0.2s;
}

.btn-link-back:hover {
    color: #ffffff;
}

/* ==========================================================================
   REFERRAL PROGRAM STYLES
   ========================================================================== */

/* Progress & Tier Track Card */
.ref-tier-card {
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.015) 100%);
    border: 1px solid var(--card-border-silver);
    border-radius: var(--radius-lg);
    padding: 16px;
    margin-bottom: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.ref-tier-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    flex-wrap: wrap;
    gap: 8px;
}

.ref-tier-title {
    font-size: 13px;
    font-weight: 700;
    color: var(--text-silver);
    letter-spacing: 0.2px;
}

.ref-tier-status {
    font-size: 12px;
    font-weight: 800;
    color: var(--warning);
    background: rgba(251, 191, 36, 0.12);
    border: 1px solid rgba(251, 191, 36, 0.3);
    padding: 4px 10px;
    border-radius: 20px;
}

.ref-progress-track-wrapper {
    position: relative;
    padding: 12px 6px 4px 6px;
    margin-bottom: 12px;
}

.ref-progress-bar-bg {
    position: absolute;
    top: 24px;
    left: 20px;
    right: 20px;
    height: 6px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 6px;
    z-index: 1;
}

.ref-progress-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, #38bdf8 0%, #818cf8 50%, #fbbf24 100%);
    border-radius: 6px;
    transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 0 12px rgba(129, 140, 248, 0.5);
}

.ref-tier-steps {
    display: flex;
    justify-content: space-between;
    position: relative;
    z-index: 2;
}

.ref-tier-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
}

.ref-tier-step .step-dot {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: #181920;
    border: 2px solid rgba(255, 255, 255, 0.2);
    color: var(--text-sub);
    font-size: 10px;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.ref-tier-step .step-lbl {
    font-size: 10px;
    font-weight: 600;
    color: var(--text-muted);
    transition: color 0.3s ease;
}

.ref-tier-step.active .step-dot {
    background: linear-gradient(135deg, #ffffff 0%, #e2e8f0 100%);
    border-color: #ffffff;
    color: #070709;
    box-shadow: 0 0 12px rgba(255, 255, 255, 0.6);
    transform: scale(1.1);
}

.ref-tier-step.active .step-lbl {
    color: #ffffff;
    font-weight: 700;
}

.ref-tier-step.passed .step-dot {
    background: #818cf8;
    border-color: #818cf8;
    color: #ffffff;
}

.ref-tier-footer {
    font-size: 11px;
    color: var(--text-sub);
    line-height: 1.4;
    text-align: center;
    padding-top: 6px;
}

/* 4 Metrics Stats Grid */
.referral-stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    margin-bottom: 16px;
}

@media (min-width: 480px) {
    .referral-stats-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.referral-stats-grid .stat-box {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    padding: 12px 10px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
    transition: transform 0.2s ease, border-color 0.2s ease;
}

.referral-stats-grid .stat-box:hover {
    border-color: var(--card-border-hover);
    transform: translateY(-1px);
}

.referral-stats-grid .stat-icon {
    font-size: 16px;
    margin-bottom: 2px;
}

.referral-stats-grid .stat-val {
    display: block;
    font-size: 18px;
    font-weight: 900;
    color: #ffffff;
    background: var(--silver-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.referral-stats-grid .stat-lbl {
    font-size: 10px;
    color: var(--text-muted);
    line-height: 1.2;
}

/* Referral Link Card & Actions */
.ref-link-card {
    background: rgba(255, 255, 255, 0.025);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    padding: 16px;
    margin-bottom: 18px;
}

.ref-link-title {
    font-size: 12px;
    font-weight: 700;
    color: var(--text-silver);
    margin-bottom: 8px;
}

.ref-link-box {
    display: flex;
    gap: 8px;
    margin-bottom: 12px;
}

.ref-link-box input {
    flex: 1;
    background: rgba(0, 0, 0, 0.6);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-sm);
    color: #ffffff;
    padding: 10px 12px;
    font-size: 12px;
    outline: none;
    font-family: monospace;
}

.ref-link-box input:focus {
    border-color: rgba(255, 255, 255, 0.4);
}

.ref-cta-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.btn-share-tg {
    background: linear-gradient(135deg, #2AABEE 0%, #229ED9 100%) !important;
    color: #ffffff !important;
    font-weight: 700;
    box-shadow: 0 4px 16px rgba(34, 158, 217, 0.35);
    border: none !important;
}

.btn-share-tg:hover {
    filter: brightness(1.08);
}

/* QR Code Section */
.ref-qr-container {
    margin-top: 14px;
    padding-top: 14px;
    border-top: 1px solid var(--card-border);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.ref-qr-container.hidden {
    display: none;
}

.qr-wrapper {
    background: #ffffff;
    padding: 12px;
    border-radius: var(--radius-md);
    display: inline-flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.qr-wrapper canvas,
.qr-wrapper svg {
    display: block;
    max-width: 160px;
    height: auto;
}

.qr-desc {
    font-size: 11px;
    color: var(--text-sub);
    max-width: 240px;
    line-height: 1.4;
}

/* How It Works (Rules) */
.ref-rules-section {
    margin-bottom: 20px;
}

.ref-section-title {
    font-size: 13px;
    font-weight: 700;
    color: var(--text-silver);
    margin-bottom: 12px;
    letter-spacing: 0.2px;
}

.ref-rules-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.ref-rule-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    background: rgba(255, 255, 255, 0.025);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    padding: 12px 14px;
    transition: background 0.2s ease;
}

.ref-rule-item:hover {
    background: rgba(255, 255, 255, 0.045);
}

.rule-icon-box {
    font-size: 20px;
    min-width: 28px;
    text-align: center;
    line-height: 1.2;
}

.rule-content {
    flex: 1;
}

.rule-title {
    font-size: 12px;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 2px;
}

.rule-text {
    font-size: 11px;
    color: var(--text-sub);
    line-height: 1.45;
}

/* Friends Section / Activity Feed */
.ref-friends-section {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    padding: 16px;
}

.ref-friends-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.ref-friends-badge {
    font-size: 11px;
    font-weight: 700;
    color: var(--text-sub);
    background: rgba(255, 255, 255, 0.06);
    padding: 2px 8px;
    border-radius: 12px;
}

.ref-friends-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.ref-friend-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 12px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    gap: 8px;
}

.ref-friend-left {
    display: flex;
    align-items: center;
    gap: 10px;
}

.friend-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.15) 0%, rgba(255, 255, 255, 0.05) 100%);
    border: 1px solid rgba(255, 255, 255, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 700;
    color: #ffffff;
}

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

.friend-name {
    font-size: 12px;
    font-weight: 700;
    color: var(--text-main);
}

.friend-date {
    font-size: 10px;
    color: var(--text-muted);
}

.friend-status-badge {
    font-size: 10px;
    font-weight: 700;
    padding: 4px 8px;
    border-radius: 12px;
    white-space: nowrap;
}

.friend-status-paid {
    background: rgba(52, 211, 153, 0.15);
    color: #34d399;
    border: 1px solid rgba(52, 211, 153, 0.3);
}

.friend-status-pending {
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-sub);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.ref-empty-state {
    text-align: center;
    padding: 24px 12px;
}

.ref-empty-state .empty-icon {
    font-size: 32px;
    margin-bottom: 8px;
    opacity: 0.8;
}

.ref-empty-state .empty-title {
    font-size: 13px;
    font-weight: 700;
    color: var(--text-silver);
    margin-bottom: 4px;
}

.ref-empty-state .empty-desc {
    font-size: 11px;
    color: var(--text-muted);
    max-width: 280px;
    margin: 0 auto;
    line-height: 1.4;
}

/* ==========================================================================
   HELP & INSTRUCTIONS (ENHANCED)
   ========================================================================== */

/* Platform Switcher Chips */
.help-platform-nav {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding-top: 12px;
    padding-bottom: 4px;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
}

.help-platform-nav::-webkit-scrollbar {
    display: none;
}

.platform-chip {
    display: flex;
    align-items: center;
    gap: 6px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 8px 14px;
    color: var(--text-sub);
    font-size: 12px;
    font-weight: 600;
    white-space: nowrap;
    cursor: pointer;
    transition: all 0.25s ease;
}

.platform-chip:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-main);
}

.platform-chip.active {
    background: var(--silver-tab-active);
    color: var(--text-dark);
    border-color: #ffffff;
    font-weight: 700;
    box-shadow: 0 2px 10px rgba(255, 255, 255, 0.25);
}

.chip-icon {
    font-size: 14px;
}

/* Guide Container & Steps */
.platform-guide-content {
    display: none;
}

.platform-guide-content.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

.help-guide-card {
    padding: 16px;
}

.guide-header {
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--card-border);
}

.guide-title-box {
    display: flex;
    align-items: center;
    gap: 12px;
}

.guide-icon {
    font-size: 28px;
}

.guide-platform-title {
    font-size: 14px;
    font-weight: 800;
    color: #ffffff;
}

.guide-platform-sub {
    font-size: 11px;
    color: var(--text-sub);
}

.guide-steps-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.guide-step {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    background: rgba(255, 255, 255, 0.025);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    padding: 14px;
}

.step-badge {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: linear-gradient(135deg, #38bdf8 0%, #818cf8 100%);
    color: #ffffff;
    font-size: 12px;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.step-body {
    flex: 1;
}

.step-title {
    font-size: 13px;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 4px;
}

.step-desc {
    font-size: 12px;
    color: var(--text-sub);
    line-height: 1.5;
}

.step-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 10px;
}

.btn-app-link {
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    font-weight: 600;
}

/* FAQ Accordion */
.faq-accordion {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.faq-item {
    background: rgba(255, 255, 255, 0.025);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: background 0.2s ease, border-color 0.2s ease;
}

.faq-item:hover {
    border-color: var(--card-border-hover);
}

.faq-question {
    padding: 14px 16px;
    font-size: 13px;
    font-weight: 700;
    color: var(--text-silver);
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    user-select: none;
    gap: 12px;
}

.faq-arrow {
    font-size: 10px;
    color: var(--text-muted);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.faq-item.open .faq-arrow {
    transform: rotate(180deg);
    color: #ffffff;
}

.faq-answer {
    padding: 0 16px 14px 16px;
    font-size: 12px;
    color: var(--text-sub);
    line-height: 1.55;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 10px;
}

.faq-answer.hidden {
    display: none;
}

/* Support Hero Card */
.help-support-hero-card {
    background: linear-gradient(135deg, rgba(34, 158, 217, 0.12) 0%, rgba(129, 140, 248, 0.08) 100%);
    border: 1px solid rgba(56, 189, 248, 0.3);
    padding: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 12px;
}

.support-hero-icon {
    font-size: 36px;
}

.support-hero-title {
    font-size: 15px;
    font-weight: 800;
    color: #ffffff;
}

.support-hero-desc {
    font-size: 12px;
    color: var(--text-sub);
    line-height: 1.5;
    max-width: 320px;
}

.support-hero-actions {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 6px;
}

/* ==========================================================================
   TOAST NOTIFICATION
   ========================================================================== */
.toast {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--silver-btn-bg);
    color: var(--text-dark);
    padding: 10px 22px;
    border-radius: 24px;
    font-size: 13px;
    font-weight: 700;
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.6), 0 0 20px rgba(255, 255, 255, 0.25);
    z-index: 1200;
    animation: fadeIn 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.5);
}

@keyframes fadeIn {
    from { opacity: 0; transform: translate(-50%, 10px); }
    to { opacity: 1; transform: translate(-50%, 0); }
}

/* ==========================================================================
   ADMIN PANEL STYLES (MONOCHROME LUXURY)
   ========================================================================== */
.admin-header-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 16px;
    margin-bottom: 14px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.08) 0%, rgba(255, 255, 255, 0.02) 100%);
    border: 1px solid var(--card-border-silver);
}

.admin-header-title {
    display: flex;
    align-items: center;
    gap: 12px;
}

.crown-icon {
    font-size: 26px;
}

.admin-subtext {
    font-size: 11px;
    color: var(--text-muted);
}

.admin-stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    margin-bottom: 16px;
}

.admin-stat-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 12px 6px;
    text-align: center;
    margin-bottom: 0;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--card-border);
}

.stat-icon {
    font-size: 18px;
    margin-bottom: 2px;
}

.stat-num {
    font-size: 16px;
    font-weight: 800;
    color: #ffffff;
    background: var(--silver-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.stat-label {
    font-size: 10px;
    color: var(--text-muted);
    margin-top: 2px;
}

.admin-section-card {
    margin-bottom: 16px;
    padding: 16px 18px;
}

.section-card-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 13px;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 14px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.health-metrics-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
}

.health-item {
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-sm);
    padding: 8px 12px;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.health-lbl {
    font-size: 10px;
    color: var(--text-muted);
}

.health-val {
    font-size: 12px;
    font-weight: 700;
    color: #ffffff;
}

.search-box {
    display: flex;
    gap: 8px;
    margin-bottom: 12px;
}

.search-box input {
    flex: 1;
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    color: #ffffff;
    padding: 10px 12px;
    font-size: 13px;
    outline: none;
}

.search-box input:focus {
    border-color: rgba(255, 255, 255, 0.4);
}

.user-result-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    padding: 14px;
    margin-top: 10px;
}

.user-result-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
    padding-bottom: 10px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.user-result-info {
    flex: 1;
    margin-left: 10px;
}

.user-result-name {
    font-size: 14px;
    font-weight: 700;
    color: #ffffff;
}

.user-result-sub {
    font-size: 11px;
    color: var(--text-muted);
}

.user-details-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.detail-row {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
}

.detail-lbl {
    color: var(--text-muted);
}

.detail-val {
    font-weight: 600;
    color: #ffffff;
}

.btn-group-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 6px;
}

.admin-form-card {
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    padding: 14px;
    margin-bottom: 14px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-bottom: 10px;
}

.form-group label {
    font-size: 11px;
    color: var(--text-muted);
}

.form-group input, .form-group textarea {
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-sm);
    color: #ffffff;
    padding: 9px 12px;
    font-size: 12px;
    outline: none;
    font-family: inherit;
}

.form-group input:focus, .form-group textarea:focus {
    border-color: rgba(255, 255, 255, 0.4);
}

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

.form-row .form-group {
    flex: 1;
}

.bloggers-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.blogger-item-card {
    background: rgba(255, 255, 255, 0.025);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-sm);
    padding: 10px 12px;
}

.blogger-item-header {
    display: flex;
    justify-content: space-between;
    font-size: 13px;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 4px;
}

.blogger-item-stats {
    font-size: 11px;
    color: var(--text-muted);
    display: flex;
    justify-content: space-between;
}

.btn-block {
    width: 100%;
}

.btn-icon-action {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid var(--card-border);
    border-radius: 4px;
    padding: 3px 8px;
    font-size: 11px;
    cursor: pointer;
    color: var(--text-main);
    transition: background 0.2s ease;
}

.btn-icon-action:hover {
    background: rgba(255, 255, 255, 0.2);
}

.btn-icon-action.btn-danger {
    background: var(--danger-bg);
    color: var(--danger);
    border-color: rgba(248, 113, 113, 0.3);
}

.btn-icon-action.btn-danger:hover {
    background: rgba(248, 113, 113, 0.25);
}