/* ============================================================================
   🎮 16-BIT PIXEL ART THEME - TELEGRAM MINI APP
   Retro Gaming Style with Press Start 2P Font
   ============================================================================ */

@import url('https://fonts.googleapis.com/css2?family=Press+Start+2P&display=swap');

/* ============================================================================
   RESET & BASE STYLES
   ============================================================================ */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    image-rendering: pixelated;
    image-rendering: -moz-crisp-edges;
    image-rendering: crisp-edges;
}

/* ============================================================================
   CSS VARIABLES - COLOR PALETTE & SPACING
   ============================================================================ */

:root {
    /* Background Colors */
    --pixel-bg: #0f0f1e;
    --pixel-bg-light: #1a1a2e;
    --pixel-bg-dark: #050510;
    --pixel-border: #2d2d44;
    
    /* Text Colors */
    --pixel-text: #f0f0f0;
    --pixel-text-dim: #8a8a9f;
    --pixel-text-bright: #ffffff;
    
    /* UI Colors */
    --pixel-primary: #00d9ff;
    --pixel-secondary: #ff006e;
    --pixel-accent: #ffbe0b;
    --pixel-success: #00ff41;
    --pixel-warning: #ff9500;
    --pixel-danger: #ff0040;
    
    /* Fish Rarity Colors */
    --pixel-normal: #8ab4f8;
    --pixel-epic: #c58aff;
    --pixel-legend: #ffd700;
    --pixel-myth: #ff1493;
    
    /* Spacing System */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 12px;
    --spacing-lg: 16px;
    --spacing-xl: 24px;
    
    /* Effects */
    --pixel-border-width: 3px;
    --pixel-shadow: 4px 4px 0 rgba(0, 0, 0, 0.5);
    --pixel-shadow-sm: 2px 2px 0 rgba(0, 0, 0, 0.3);
}

/* ============================================================================
   BODY & GLOBAL EFFECTS
   ============================================================================ */

body {
    font-family: 'Press Start 2P', 'Courier New', monospace;
    background: var(--pixel-bg);
    background-image: 
        repeating-linear-gradient(
            0deg,
            transparent,
            transparent 2px,
            rgba(0, 0, 0, 0.3) 2px,
            rgba(0, 0, 0, 0.3) 4px
        ),
        repeating-linear-gradient(
            90deg,
            transparent,
            transparent 2px,
            rgba(0, 0, 0, 0.3) 2px,
            rgba(0, 0, 0, 0.3) 4px
        );
    color: var(--pixel-text);
    line-height: 1.6;
    overflow-x: hidden;
    font-size: 10px;
}

/* CRT Scan Line Effect */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: repeating-linear-gradient(
        0deg,
        rgba(0, 0, 0, 0.15),
        rgba(0, 0, 0, 0.15) 1px,
        transparent 1px,
        transparent 2px
    );
    pointer-events: none;
    z-index: 9999;
}

/* ============================================================================
   KEYFRAME ANIMATIONS
   ============================================================================ */

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

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0.3; }
}

@keyframes shimmer {
    0%, 100% { filter: brightness(1); }
    50% { filter: brightness(1.3); }
}

@keyframes pixelFadeIn {
    from {
        opacity: 0;
        transform: translateX(-4px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes pixelSlideUp {
    from { transform: translateY(100%); }
    to { transform: translateY(0); }
}

/* ============================================================================
   LOADING SCREEN
   ============================================================================ */

.loading {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: var(--pixel-bg);
    z-index: 9999;
}

.loading-spinner {
    width: 32px;
    height: 32px;
    border: 4px solid var(--pixel-border);
    border-top-color: var(--pixel-primary);
    animation: pixelSpin 0.8s steps(8) infinite;
}

.loading p {
    margin-top: var(--spacing-lg);
    color: var(--pixel-primary);
    font-size: 7px;
    text-transform: uppercase;
    letter-spacing: 1px;
    animation: blink 1s steps(2) infinite;
    line-height: 1.4;
}

/* ============================================================================
   APP LAYOUT
   ============================================================================ */

.app {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.content {
    padding: var(--spacing-md);
    background: var(--pixel-bg);
    flex: 1;
    overflow-y: auto;
}

/* ============================================================================
   HEADER
   ============================================================================ */

.header {
    background: var(--pixel-bg-dark);
    border-bottom: var(--pixel-border-width) solid var(--pixel-primary);
    padding: var(--spacing-lg) var(--spacing-md);
    text-align: center;
    position: relative;
    box-shadow: 0 4px 0 var(--pixel-border);
}

.header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: repeating-linear-gradient(
        90deg,
        var(--pixel-primary) 0px,
        var(--pixel-primary) 4px,
        transparent 4px,
        transparent 8px
    );
}

.app-title {
    font-size: 16px;
    color: var(--pixel-accent);
    text-shadow: 
        2px 2px 0 var(--pixel-secondary),
        4px 4px 0 rgba(0,0,0,0.5);
    margin-bottom: var(--spacing-sm);
    letter-spacing: 2px;
}

.subtitle {
    font-size: 8px;
    color: var(--pixel-primary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ============================================================================
   NAVIGATION TABS
   ============================================================================ */

.nav-tabs {
    display: flex;
    background: var(--pixel-bg-light);
    padding: var(--spacing-sm);
    gap: var(--spacing-xs);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: var(--pixel-border-width) solid var(--pixel-border);
}

.nav-tab {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: var(--spacing-sm);
    background: var(--pixel-bg-dark);
    border: var(--pixel-border-width) solid var(--pixel-border);
    cursor: pointer;
    transition: none;
    position: relative;
}

.nav-tab:hover {
    background: var(--pixel-bg);
    border-color: var(--pixel-primary);
}

.nav-tab:active {
    transform: translate(2px, 2px);
    box-shadow: none;
}

.nav-tab.active {
    background: var(--pixel-primary);
    border-color: var(--pixel-accent);
    box-shadow: var(--pixel-shadow-sm);
}

.nav-tab.active .tab-label {
    color: var(--pixel-bg-dark);
}

.tab-icon {
    font-size: 16px;
    filter: drop-shadow(1px 1px 0 rgba(0,0,0,0.5));
}

.tab-label {
    font-size: 5px;
    color: var(--pixel-text);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    line-height: 1.2;
}

/* ============================================================================
   TAB CONTENT
   ============================================================================ */

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: pixelFadeIn 0.2s steps(4);
}

.tab-header {
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-sm);
    background: var(--pixel-bg-dark);
    border-left: 4px solid var(--pixel-primary);
}

.tab-title {
    font-size: 10px;
    color: var(--pixel-accent);
    margin-bottom: 4px;
    text-shadow: 2px 2px 0 rgba(0, 0, 0, 0.5);
    line-height: 1.3;
}

.tab-subtitle {
    font-size: 6px;
    color: var(--pixel-text-dim);
    text-transform: uppercase;
    line-height: 1.2;
}

/* ============================================================================
   PROFILE CARD
   ============================================================================ */

.profile-card {
    background: var(--pixel-bg-light);
    border: var(--pixel-border-width) solid var(--pixel-border);
    padding: var(--spacing-lg);
    box-shadow: var(--pixel-shadow);
    position: relative;
}

.profile-card::before {
    content: '╔═══════════════════════╗';
    position: absolute;
    top: 4px;
    left: 4px;
    right: 4px;
    font-size: 6px;
    color: var(--pixel-border);
    text-align: center;
}

.profile-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    padding-top: var(--spacing-md);
}

.profile-avatar {
    width: 64px;
    height: 64px;
    background: var(--pixel-bg-dark);
    border: var(--pixel-border-width) solid var(--pixel-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: var(--pixel-shadow-sm);
    position: relative;
}

.profile-avatar::after {
    content: '';
    position: absolute;
    inset: -2px;
    border: 1px solid var(--pixel-accent);
}

.avatar-emoji {
    font-size: 32px;
    filter: drop-shadow(2px 2px 0 rgba(0,0,0,0.5));
}

.profile-info {
    flex: 1;
    min-width: 0;
}
.profile-name {
    font-size: 10px;
    color: var(--pixel-accent);
    margin-bottom: 6px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    text-shadow: 2px 2px 0 rgba(0,0,0,0.5);
    line-height: 1.3;
}

.profile-username {
    color: var(--pixel-text-dim);
    font-size: 6px;
    line-height: 1.3;
}

/* ============================================================================
   STATS GRID
   ============================================================================ */

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.stat-card {
    background: var(--pixel-bg-dark);
    border: var(--pixel-border-width) solid var(--pixel-border);
    padding: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    position: relative;
    box-shadow: var(--pixel-shadow-sm);
}

.stat-card::before {
    content: '▸';
    position: absolute;
    left: 4px;
    top: 4px;
    color: var(--pixel-primary);
    font-size: 6px;
}

.stat-icon {
    font-size: 20px;
    filter: drop-shadow(1px 1px 0 rgba(0,0,0,0.5));
}

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

.stat-label {
    font-size: 5px;
    color: var(--pixel-text-dim);
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    line-height: 1.2;
}

.stat-value {
    font-size: 9px;
    color: var(--pixel-success);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    text-shadow: 1px 1px 0 rgba(0,0,0,0.5);
    line-height: 1.3;
}
/* ============================================================================
   ITEM LIST & CARDS
   ============================================================================ */
.item-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.item-card {
    background: var(--pixel-bg-light);
    border: var(--pixel-border-width) solid var(--pixel-border);
    padding: var(--spacing-md);
    box-shadow: var(--pixel-shadow-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    position: relative;
    transition: all 0.1s steps(2);
}

.item-card:hover {
    border-color: var(--pixel-primary);
    transform: translate(-2px, -2px);
    box-shadow: 4px 4px 0 rgba(0,0,0,0.5);
}

.item-card::before {
    content: '●';
    position: absolute;
    left: 6px;
    top: 6px;
    color: var(--pixel-primary);
    font-size: 8px;
    animation: blink 2s steps(2) infinite;
}

.item-icon {
    font-size: 24px;
    flex-shrink: 0;
    filter: drop-shadow(2px 2px 0 rgba(0,0,0,0.5));
}

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

.item-name {
    font-size: 7px;
    color: var(--pixel-text-bright);
    margin-bottom: 4px;
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
    line-height: 1.4;
}

.item-rarity {
    display: inline-block;
    padding: 2px 6px;
    border: 2px solid;
    font-size: 6px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.item-rarity.normal { 
    background: var(--pixel-normal); 
    border-color: #5a7fa0;
    color: var(--pixel-bg-dark);
}
.item-rarity.epic { 
    background: var(--pixel-epic); 
    border-color: #9050c0;
    color: var(--pixel-bg-dark);
}
.item-rarity.legend { 
    background: var(--pixel-legend); 
    border-color: #c0a000;
    color: var(--pixel-bg-dark);
    animation: shimmer 2s linear infinite;
}
.item-rarity.myth { 
    background: var(--pixel-myth); 
    border-color: #c00050;
    color: var(--pixel-text-bright);
    animation: shimmer 1s linear infinite;
}

/* Item Details & Stats */
.item-details {
    font-size: 6px;
    color: var(--pixel-text-dim);
    display: flex;
    gap: var(--spacing-md);
    line-height: 1.4;
}

.item-stat {
    display: flex;
    align-items: center;
    gap: 2px;
}

.item-value {
    text-align: right;
}

.item-price {
    font-size: 8px;
    color: var(--pixel-accent);
    text-shadow: 1px 1px 0 rgba(0, 0, 0, 0.5);
    line-height: 1.3;
.empty-text {
    font-size: 8px;
    color: var(--pixel-text-dim);
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    line-height: 1.4;
}

.empty-subtext {
    font-size: 6px;
    color: var(--pixel-text-dim);
    opacity: 0.7;
    line-height: 1.4;
}

/* ============================================================================
   ERROR MESSAGES
   ============================================================================ */
    font-size: 6px;
    line-height: 1.4;
}

.history-stat {
    color: var(--pixel-text-dim);
}

.history-stat strong {
    color: var(--pixel-text-bright);
}

/* ============================================================================
   EMPTY STATE
   ============================================================================ */
.empty-state {
    text-align: center;
    padding: var(--spacing-xl) var(--spacing-md);
    background: var(--pixel-bg-dark);
    border: var(--pixel-border-width) dashed var(--pixel-border);
    margin: var(--spacing-md);
}

.empty-icon {
    font-size: 48px;
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
    filter: grayscale(1);
}

.empty-text {
    font-size: 10px;
    color: var(--pixel-text-dim);
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
}

/* ============================================================================
   ERROR MESSAGES
   ============================================================================ */

.error-message {
    position: fixed;
    bottom: var(--spacing-md);
    left: var(--spacing-md);
    right: var(--spacing-md);
    background: var(--pixel-danger);
    border: var(--pixel-border-width) solid var(--pixel-text-bright);
    padding: var(--spacing-md);
    box-shadow: var(--pixel-shadow);
    z-index: 1000;
    animation: pixelSlideUp 0.2s steps(4);
}

@keyframes pixelSlideUp {
    from {
        transform: translateY(100%);
    }
    to {
        transform: translateY(0);
    }
}
.error-text {
    font-size: 6px;
    color: var(--pixel-text-bright);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    line-height: 1.4;
}

/* ============================================================================
   ITEM DETAILS & STATS
   ============================================================================ */

.item-details {
    font-size: 6px;
    color: var(--pixel-text-dim);
    display: flex;
    gap: var(--spacing-md);
    line-height: 1.4;
}

.item-stat {
    display: flex;
    align-items: center;
    gap: 2px;
}

.item-value {
    text-align: right;
}

.item-price {
    font-size: 8px;
    color: var(--pixel-accent);
    text-shadow: 1px 1px 0 rgba(0,0,0,0.5);
    line-height: 1.3;
}

/* ============================================================================
   HISTORY SECTION
   ============================================================================ */

.history-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xs);
    font-size: 6px;
    line-height: 1.4;
}

.history-stat {
    color: var(--pixel-text-dim);
}

.history-stat strong {
    color: var(--pixel-text-bright);
}

/* ============================================================================
   SCROLLBAR STYLING
   ============================================================================ */

::-webkit-scrollbar {
    width: 12px;
}

::-webkit-scrollbar-track {
    background: var(--pixel-bg-dark);
    border-left: 2px solid var(--pixel-border);
}

::-webkit-scrollbar-thumb {
    background: var(--pixel-primary);
    border: 2px solid var(--pixel-bg-dark);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--pixel-accent);
}

/* ============================================================================
   RESPONSIVE DESIGN
   ============================================================================ */
@media (max-width: 360px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .tab-label {
        font-size: 4px;
    }
    
    .tab-icon {
        font-size: 14px;
    }
    
    .app-title {
        font-size: 12px;
    }
    
    .profile-name {
        font-size: 8px;
    }
    
    .profile-avatar {
        width: 48px;
        height: 48px;
    }
    
    .avatar-emoji {
        font-size: 24px;
    }
}

@media (max-width: 320px) {
    body {
        font-size: 9px;
    }
    
    .app-title {
        font-size: 10px;
        letter-spacing: 1px;
    }
    
    .nav-tabs {
        padding: 4px;
        gap: 2px;
    }
    
    .nav-tab {
        padding: 6px;
    }
}