/**
 * Kito Community Rewards - TMA Design System
 * Based on Telegram Mini Apps UI Kit standards
 */

/* Design Tokens */
:root {
    /* Spacing Scale (8px base grid) */
    --spacing-1: 4px;
    --spacing-2: 8px;
    --spacing-3: 12px;
    --spacing-4: 16px;
    --spacing-5: 20px;
    --spacing-6: 24px;
    --spacing-8: 32px;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-full: 9999px;

    /* Typography */
    --font-xs: 12px;
    --font-sm: 14px;
    --font-base: 16px;
    --font-lg: 18px;
    --font-xl: 20px;
    --font-2xl: 24px;
    --font-3xl: 32px;
    --font-4xl: 48px;

    /* Elevations */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

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

/* Body */
body {
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--tg-theme-bg-color, #17212B);
    color: var(--tg-theme-text-color, #FFFFFF);
    min-height: 100vh;
    font-size: var(--font-base);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

/* Container */
.container {
    max-width: 600px;
    margin: 0 auto;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.header {
    padding: var(--spacing-4) var(--spacing-5);
    display: flex;
    justify-content: flex-end;
    align-items: center;
    background-color: var(--tg-theme-secondary-bg-color, rgba(255, 255, 255, 0.03));
    border-bottom: 0.5px solid var(--tg-theme-section-bg-color, rgba(255, 255, 255, 0.08));
    position: sticky;
    top: 0;
    z-index: 10;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.user-profile {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
}

.avatar {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    object-fit: cover;
    background: var(--tg-theme-button-color, #3390EC);
    border: 2px solid var(--tg-theme-secondary-bg-color, rgba(255, 255, 255, 0.1));
}

.user-name {
    font-size: var(--font-base);
    font-weight: 590;
    letter-spacing: -0.01em;
}

/* Stats Section */
.stats-section {
    padding: var(--spacing-5);
    flex: 1;
}

.stat-card {
    background: var(--tg-theme-section-bg-color, rgba(255, 255, 255, 0.06));
    border-radius: var(--radius-lg);
    padding: var(--spacing-5);
    text-align: center;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

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

.main-card {
    margin-bottom: var(--spacing-3);
    position: relative;
    padding: var(--spacing-4);
    background: linear-gradient(135deg,
        var(--tg-theme-section-bg-color, rgba(51, 144, 236, 0.1)),
        var(--tg-theme-section-bg-color, rgba(51, 144, 236, 0.05))
    );
    border: 1px solid var(--tg-theme-section-bg-color, rgba(255, 255, 255, 0.08));
}

.stat-value {
    font-size: var(--font-4xl);
    font-weight: 700;
    color: var(--tg-theme-button-color, #3390EC);
    margin-bottom: var(--spacing-2);
    letter-spacing: -0.02em;
    line-height: 1.1;
}

.stat-label {
    font-size: var(--font-sm);
    color: var(--tg-theme-subtitle-text-color, rgba(255, 255, 255, 0.5));
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stat-rank {
    position: absolute;
    top: var(--spacing-5);
    right: var(--spacing-5);
    font-size: var(--font-lg);
    font-weight: 650;
    color: var(--tg-theme-accent-text-color, #3390EC);
    background: var(--tg-theme-secondary-bg-color, rgba(255, 255, 255, 0.08));
    padding: var(--spacing-1) var(--spacing-3);
    border-radius: var(--radius-lg);
}

.stat-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-2);
}

.stat-grid .stat-card {
    padding: var(--spacing-3);
}

.stat-grid .stat-card .stat-value {
    font-size: var(--font-3xl);
}

.stat-icon {
    margin-bottom: var(--spacing-2);
    opacity: 0.9;
    display: flex;
    align-items: center;
    justify-content: center;
}

.stat-icon svg {
    width: 28px;
    height: 28px;
    stroke-width: 2;
    color: var(--tg-theme-button-color, #3390EC);
}

/* Wallet Section */
.wallet-section {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-3);
    margin-bottom: var(--spacing-3);
    padding: var(--spacing-3);
    background: var(--tg-theme-section-bg-color, rgba(255, 255, 255, 0.04));
    border-radius: var(--radius-md);
    border: 1px solid var(--tg-theme-section-bg-color, rgba(255, 255, 255, 0.08));
}

.wallet-status {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-1);
    flex: 1;
    min-width: 0;
}

.wallet-label {
    font-size: var(--font-xs);
    color: var(--tg-theme-hint-color, rgba(255, 255, 255, 0.5));
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.wallet-address {
    font-size: var(--font-sm);
    font-family: 'SF Mono', 'Consolas', 'Monaco', monospace;
    color: var(--tg-theme-text-color, #FFFFFF);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.wallet-address.connected {
    color: var(--tg-theme-accent-text-color, #4DCD5E);
}

.wallet-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-2) var(--spacing-3);
    background: var(--tg-theme-button-color, #3390EC);
    border: none;
    border-radius: var(--radius-md);
    color: var(--tg-theme-button-text-color, #FFFFFF);
    font-size: var(--font-sm);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.wallet-btn svg {
    width: 16px;
    height: 16px;
    stroke-width: 2;
}

.wallet-btn:active {
    transform: scale(0.97);
}

.wallet-btn.connected {
    background: var(--tg-theme-section-bg-color, rgba(255, 255, 255, 0.08));
    color: var(--tg-theme-hint-color, rgba(255, 255, 255, 0.6));
}

.wallet-btn.connecting {
    opacity: 0.7;
    cursor: wait;
}

/* Check-in Button */
.checkin-section {
    padding: 0;
    margin-bottom: var(--spacing-4);
}

.checkin-btn {
    width: 100%;
    padding: var(--spacing-4);
    background: var(--tg-theme-button-color, #3390EC);
    border: none;
    border-radius: var(--radius-lg);
    color: var(--tg-theme-button-text-color, #FFFFFF);
    font-size: var(--font-base);
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 12px rgba(51, 144, 236, 0.3);
    position: relative;
    overflow: hidden;
}

.checkin-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.checkin-btn:hover::before {
    left: 100%;
}

.checkin-btn:active {
    transform: scale(0.97);
    box-shadow: 0 2px 8px rgba(51, 144, 236, 0.4);
}

.checkin-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    box-shadow: none;
}

.btn-icon {
    display: inline-flex;
    align-items: center;
}

.btn-icon svg {
    width: 20px;
    height: 20px;
    stroke-width: 2.5;
}

.btn-text {
    font-weight: 600;
    letter-spacing: -0.01em;
}

.btn-cost {
    font-size: var(--font-xs);
    font-weight: 500;
    padding: var(--spacing-1) var(--spacing-2);
    background: rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-sm);
    margin-left: var(--spacing-2);
}

.checkin-message {
    margin-top: var(--spacing-3);
    text-align: center;
    font-size: var(--font-sm);
    font-weight: 500;
    min-height: 20px;
    line-height: 1.4;
}

.checkin-message.success {
    color: var(--tg-theme-accent-text-color, #4DCD5E);
}

.checkin-message.error {
    color: var(--tg-theme-destructive-text-color, #FF3B30);
}

/* Page System */
.page {
    display: none !important;
    min-height: 100vh;
    animation: pageSlideIn 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.page.active {
    display: block !important;
}

@keyframes pageSlideIn {
    from {
        opacity: 0;
        transform: translateX(20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Page Header */
.page-header {
    padding: var(--spacing-3) var(--spacing-4);
    border-bottom: 1px solid var(--tg-theme-section-bg-color, rgba(255, 255, 255, 0.08));
    background: var(--tg-theme-bg-color, #1E2337);
}

.page-title {
    font-size: var(--font-xl);
    font-weight: 600;
    letter-spacing: -0.01em;
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    color: var(--tg-theme-text-color, #FFFFFF);
}

.page-title svg {
    width: 20px;
    height: 20px;
    stroke-width: 2;
    color: var(--tg-theme-button-color, #3390EC);
}

/* Page Content */
.page-content {
    padding: var(--spacing-3);
    padding-bottom: 100px;
}

/* Stats inside page-content */
.page-content .stats-section {
    padding: 0;
    margin-bottom: var(--spacing-4);
}

/* Empty State */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 60vh;
    gap: var(--spacing-4);
    color: var(--tg-theme-hint-color, rgba(255, 255, 255, 0.4));
}

.empty-icon {
    width: 64px;
    height: 64px;
    stroke-width: 1.5;
    opacity: 0.5;
}

.empty-state p {
    font-size: var(--font-lg);
    font-weight: 500;
}

/* Tabs */
.tabs {
    display: flex;
    background: var(--tg-theme-secondary-bg-color, rgba(255, 255, 255, 0.03));
    border-bottom: 0.5px solid var(--tg-theme-section-bg-color, rgba(255, 255, 255, 0.08));
    padding: 0 var(--spacing-5);
}

.tab {
    flex: 1;
    padding: var(--spacing-4);
    background: none;
    border: none;
    color: var(--tg-theme-hint-color, rgba(255, 255, 255, 0.5));
    font-size: var(--font-base);
    font-weight: 500;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all 0.2s ease;
    position: relative;
}

.tab::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--tg-theme-accent-text-color, #3390EC);
    transform: scaleX(0);
    transition: transform 0.2s ease;
}

.tab.active {
    color: var(--tg-theme-accent-text-color, #3390EC);
}

.tab.active::after {
    transform: scaleX(1);
}

.tab-content {
    display: none;
    padding: var(--spacing-5);
    animation: fadeIn 0.3s ease;
}

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

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(4px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Leaderboard */
.leaderboard-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2);
}

.leader-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    background: var(--tg-theme-section-bg-color, rgba(255, 255, 255, 0.04));
    border-radius: var(--radius-md);
    padding: var(--spacing-3);
    transition: all 0.2s ease;
    border: 1px solid transparent;
}

.leader-item:active {
    transform: scale(0.98);
    background: var(--tg-theme-section-bg-color, rgba(255, 255, 255, 0.08));
}

.leader-rank {
    font-size: var(--font-lg);
    font-weight: 700;
    min-width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    background: var(--tg-theme-secondary-bg-color, rgba(255, 255, 255, 0.06));
}

.leader-rank.top1 {
    background: linear-gradient(135deg, #FFD700, #FFA500);
    color: #000;
}

.leader-rank.top2 {
    background: linear-gradient(135deg, #C0C0C0, #A8A8A8);
    color: #000;
}

.leader-rank.top3 {
    background: linear-gradient(135deg, #CD7F32, #B8733B);
    color: #000;
}

.leader-info {
    flex: 1;
    min-width: 0;
}

.leader-name {
    font-weight: 590;
    font-size: var(--font-base);
    margin-bottom: var(--spacing-1);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.leader-streak {
    font-size: var(--font-xs);
    color: var(--tg-theme-subtitle-text-color, rgba(255, 255, 255, 0.5));
    font-weight: 500;
}

.leader-points {
    font-size: var(--font-lg);
    font-weight: 700;
    color: var(--tg-theme-accent-text-color, #3390EC);
    letter-spacing: -0.01em;
}

/* Referral */
.referral-info {
    max-width: 480px;
    margin: 0 auto;
}

.referral-info p {
    color: var(--tg-theme-hint-color, rgba(255, 255, 255, 0.6));
    margin-bottom: var(--spacing-3);
    line-height: 1.5;
    font-size: var(--font-sm);
    text-align: center;
}

.referral-info p strong {
    color: var(--tg-theme-accent-text-color, #3390EC);
    font-weight: 650;
}

.referral-actions {
    display: flex;
    gap: var(--spacing-2);
    margin-bottom: var(--spacing-3);
}

.share-btn,
.copy-btn {
    flex: 1;
    padding: var(--spacing-3);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-sm);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
}

.share-btn svg,
.copy-btn svg {
    width: 18px;
    height: 18px;
    stroke-width: 2;
}

.share-btn {
    background: var(--tg-theme-button-color, #3390EC);
    color: var(--tg-theme-button-text-color, #FFFFFF);
    box-shadow: 0 2px 8px rgba(51, 144, 236, 0.3);
}

.share-btn:active {
    transform: scale(0.97);
}

.copy-btn {
    background: var(--tg-theme-section-bg-color, rgba(255, 255, 255, 0.08));
    color: var(--tg-theme-text-color, #FFFFFF);
    border: 1px solid var(--tg-theme-section-bg-color, rgba(255, 255, 255, 0.12));
}

.copy-btn:active {
    transform: scale(0.97);
    background: var(--tg-theme-section-bg-color, rgba(255, 255, 255, 0.12));
}

.referral-link {
    padding: var(--spacing-3);
    background: var(--tg-theme-section-bg-color, rgba(255, 255, 255, 0.04));
    border-radius: var(--radius-md);
    font-size: var(--font-xs);
    font-family: 'SF Mono', 'Consolas', 'Monaco', monospace;
    word-break: break-all;
    color: var(--tg-theme-hint-color, rgba(255, 255, 255, 0.6));
    border: 1px solid var(--tg-theme-section-bg-color, rgba(255, 255, 255, 0.08));
    line-height: 1.6;
}

/* Loading State */
.loading {
    text-align: center;
    padding: var(--spacing-8);
    color: var(--tg-theme-hint-color, rgba(255, 255, 255, 0.5));
    font-size: var(--font-base);
}

/* Responsive */
@media (max-width: 480px) {
    .stat-value {
        font-size: var(--font-3xl);
    }

    .stat-grid .stat-card .stat-value {
        font-size: var(--font-2xl);
    }

    .header {
        padding: var(--spacing-3) var(--spacing-4);
    }

    .stats-section,
    .checkin-section,
    .tab-content {
        padding: var(--spacing-4);
    }
}

/* ========================================
   FLOATING PILL NAVBAR - iOS Liquid Glass
   ======================================== */

.content-wrapper {
    padding-bottom: 80px; /* Space for floating navbar */
}

.floating-navbar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 0 var(--spacing-4) var(--spacing-5);
    pointer-events: none;
    z-index: 1000;
}

.navbar-pill {
    max-width: 280px;
    margin: 0 auto;
    display: flex;
    gap: var(--spacing-1);
    padding: var(--spacing-1);

    /* Dark Glass Effect - optimized for dark theme */
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(40px) saturate(180%);
    -webkit-backdrop-filter: blur(40px) saturate(180%);

    /* Pill Shape */
    border-radius: var(--radius-full);

    /* Borders & Shadows - subtle for dark theme */
    border: 1px solid rgba(255, 255, 255, 0.06);
    box-shadow:
        0 8px 32px rgba(0, 0, 0, 0.6),
        inset 0 1px 0 rgba(255, 255, 255, 0.08),
        0 1px 0 rgba(255, 255, 255, 0.03);
    
    /* Enable interactions */
    pointer-events: auto;
    
    /* Animation */
    animation: slideUp 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(100px) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.nav-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-1);
    padding: var(--spacing-2) var(--spacing-3);
    border: none;
    background: transparent;
    color: var(--tg-theme-hint-color, rgba(255, 255, 255, 0.5));
    cursor: pointer;
    border-radius: calc(var(--radius-full) - 4px);
    position: relative;
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Shimmer effect on inactive items */
.nav-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.1),
        transparent
    );
    transition: left 0.5s;
}

.nav-item:hover::before {
    left: 100%;
}

/* Active State */
.nav-item.active {
    background: var(--tg-theme-button-color, #3390EC);
    color: var(--tg-theme-button-text-color, #FFFFFF);
    box-shadow:
        0 4px 16px rgba(51, 144, 236, 0.4),
        inset 0 1px 0 rgba(255, 255, 255, 0.15);
}

/* Active indicator glow */
.nav-item.active::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: radial-gradient(
        circle at center,
        rgba(51, 144, 236, 0.3),
        transparent 70%
    );
    opacity: 0;
    animation: pulseGlow 2s ease-in-out infinite;
}

@keyframes pulseGlow {
    0%, 100% {
        opacity: 0;
    }
    50% {
        opacity: 1;
    }
}

/* Touch feedback */
.nav-item:active {
    transform: scale(0.95);
    background: rgba(255, 255, 255, 0.2);
}

.nav-icon {
    width: 18px;
    height: 18px;
    stroke-width: 2;
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.nav-item.active .nav-icon {
    transform: scale(1.1);
}

.nav-label {
    font-size: var(--font-xs);
    font-weight: 600;
    letter-spacing: 0.02em;
    transition: opacity 0.2s;
}

.nav-item:not(.active) .nav-label {
    opacity: 0.7;
}

/* Vibrancy enhancement for light content */
@supports (backdrop-filter: blur(40px)) {
    .navbar-pill {
        background: rgba(255, 255, 255, 0.1);
    }
}

/* Dark theme adaptation */
@media (prefers-color-scheme: light) {
    .navbar-pill {
        background: rgba(255, 255, 255, 0.7);
        border-color: rgba(255, 255, 255, 0.5);
    }
    
    .nav-item {
        color: rgba(0, 0, 0, 0.5);
    }
    
    .nav-item.active {
        background: rgba(255, 255, 255, 0.9);
        color: #000;
    }
}

/* Responsive adjustments */
@media (max-width: 480px) {
    .floating-navbar {
        padding: 0 var(--spacing-3) var(--spacing-4);
    }
    
    .navbar-pill {
        max-width: 100%;
    }
    
    .nav-item {
        padding: var(--spacing-2) var(--spacing-3);
    }
    
    .nav-icon {
        font-size: var(--font-xl);
    }
}

/* Accessibility - Reduce motion */
@media (prefers-reduced-motion: reduce) {
    .navbar-pill {
        animation: none;
    }
    
    .nav-item,
    .nav-icon {
        transition: none;
    }
    
    .nav-item.active::after {
        animation: none;
    }
}

/* Hide old tabs */
.tabs {
    display: none;
}

.tab-content {
    padding-bottom: var(--spacing-6);
}