@import url('https://fonts.googleapis.com/css2?family=Press+Start+2P&family=VT323&family=Inter:wght@400;500;600;700&display=swap');

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

:root {
    --bg-primary: #1A2228;
    --bg-secondary: #202B31;
    --bg-tertiary: #2B363D;
    --bg-panel: #2C3A40;
    --bg-panel-hover: #37474F;
    --bg-panel-active: #43535C;
    --border-light: #D7DDE2;
    --border-mid: #BFC7CD;
    --border-dark: #8FA1AA;
    --red-primary: #F04A4A;
    --red-bright: #FF5B57;
    --red-dark: #D93B3B;
    --blue-primary: #0A84FF;
    --blue-bright: #1E90FF;
    --blue-dark: #3AA0FF;
    --gold: #FFB100;
    --gold-bright: #FFC83D;
    --gold-dark: #E89B00;
    --purple: #A970FF;
    --purple-dark: #8D5BFF;
    --cyan: #48D6FF;
    --cyan-dark: #33C7F5;
    --success: #2ECC71;
    --danger: #E74C3C;
    --accent-primary: #0A84FF;
    --text-white: #FFFFFF;
    --text-light: #EAEAEA;
    --text-mid: #D0D7DD;
    --text-dim: #AAB7C0;
    --font-pixel: 'Press Start 2P', monospace;
    --font-terminal: 'VT323', monospace;
    --font-body: 'Inter', sans-serif;
}

body {
    font-family: var(--font-body);
    background: var(--bg-primary);
    color: var(--text-mid);
    height: 100vh;
    overflow: hidden;
    font-size: 14px;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    position: relative;
}

body::before {
    content: '';
    position: fixed;
    inset: 0;
    background: radial-gradient(ellipse at center, transparent 55%, rgba(0,0,0,0.5) 100%);
    pointer-events: none;
    z-index: 99998;
}

body::after {
    content: '';
    position: fixed;
    inset: 0;
    background: repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(0,0,0,0.06) 2px, rgba(0,0,0,0.06) 4px);
    pointer-events: none;
    z-index: 99999;
}

.mobile-header {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 64px;
    background: var(--bg-secondary);
    border-bottom: 3px solid var(--border-dark);
    padding: 0 16px;
    align-items: center;
    gap: 12px;
    z-index: 1000;
}

.mobile-menu-btn {
    background: none;
    border: 2px solid var(--border-dark);
    color: var(--text-light);
    cursor: pointer;
    padding: 8px;
    border-radius: 10px;
    transition: all 0.2s;
    flex-shrink: 0;
}

.mobile-menu-btn:hover {
    border-color: var(--gold);
    color: var(--gold);
}

.mobile-header h1 {
    font-family: var(--font-pixel);
    font-size: 11px;
    color: var(--text-light);
    letter-spacing: 1px;
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.mobile-lang-toggle {
    display: flex;
    gap: 4px;
    flex-shrink: 0;
}

.mobile-lang-toggle .lang-btn {
    padding: 4px 8px;
    font-size: 8px;
    border-radius: 8px;
}

.container {
    display: flex;
    height: 100vh;
}

.sidebar {
    width: 280px;
    background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
    border-right: 3px solid var(--border-dark);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: transform 0.3s ease;
}

.sidebar-header {
    padding: 28px 20px 20px;
    border-bottom: 2px solid var(--bg-panel);
    text-align: center;
}

.sidebar-header h1 {
    font-family: var(--font-pixel);
    font-size: 13px;
    color: var(--gold);
    letter-spacing: 1.5px;
    line-height: 1.4;
    text-shadow: 0 0 20px rgba(255, 177, 0, 0.15);
}

.sidebar-header .version {
    font-family: var(--font-terminal);
    font-size: 14px;
    color: var(--text-dim);
    margin-top: 6px;
    display: block;
}

.search-box {
    margin: 14px 16px 0;
    position: relative;
}

.search-box input {
    width: 100%;
    padding: 10px 14px 10px 38px;
    background: var(--bg-tertiary);
    border: 2px solid var(--bg-panel);
    border-radius: 12px;
    color: var(--text-light);
    font-family: var(--font-terminal);
    font-size: 16px;
    transition: all 0.2s;
}

.search-box input:focus {
    outline: none;
    border-color: var(--gold);
    background: var(--bg-primary);
    box-shadow: 0 0 15px rgba(255, 177, 0, 0.1);
}

.search-box input::placeholder {
    color: var(--text-dim);
    font-family: var(--font-terminal);
    font-size: 14px;
}

.search-box svg {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-dim);
    pointer-events: none;
    width: 16px;
    height: 16px;
}

.category-select {
    margin: 12px 16px 0;
}

.category-select select {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg-tertiary);
    border: 2px solid var(--bg-panel);
    border-radius: 12px;
    color: var(--gold);
    font-family: var(--font-terminal);
    font-size: 16px;
    cursor: pointer;
    transition: all 0.2s;
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23FFB100' stroke-width='3'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
}

.category-select select:hover {
    border-color: var(--gold);
    box-shadow: 0 0 12px rgba(255, 177, 0, 0.08);
}

.category-select select:focus {
    outline: none;
    border-color: var(--gold);
    box-shadow: 0 0 15px rgba(255, 177, 0, 0.12);
}

.category-select select option {
    background: var(--bg-tertiary);
    color: var(--text-light);
    font-family: var(--font-terminal);
    font-size: 15px;
    padding: 8px;
}

.sidebar-nav {
    margin: 12px 16px 0;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.sidebar-nav-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 14px;
    background: var(--bg-tertiary);
    border: 2px solid var(--bg-panel);
    border-radius: 12px;
    color: var(--text-light);
    cursor: pointer;
    font-family: var(--font-terminal);
    font-size: 13px;
    transition: all 0.2s;
    width: 100%;
    text-align: left;
    white-space: nowrap;
}

.sidebar-nav-btn:hover {
    background: var(--bg-panel-hover);
    border-color: var(--border-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}

.sidebar-nav-btn:focus-visible {
    outline: 2px solid var(--gold);
    outline-offset: 2px;
}

.sidebar-nav-btn.active {
    background: var(--bg-panel-active);
    border-color: var(--gold);
    color: var(--gold);
    box-shadow: 0 0 12px rgba(255, 177, 0, 0.08);
}

.sidebar-nav-btn i {
    width: 16px;
    text-align: center;
}

.sidebar-nav-btn.coming-soon {
    opacity: 0.55;
    cursor: not-allowed;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.sidebar-nav-btn.coming-soon:hover {
    transform: none;
    box-shadow: none;
    background: var(--bg-tertiary);
    border-color: var(--bg-panel);
}

.coming-soon-badge {
    font-family: var(--font-pixel);
    font-size: 6px;
    padding: 2px 5px;
    background: var(--red-dark);
    color: white;
    border-radius: 5px;
    letter-spacing: 0.3px;
    white-space: nowrap;
    flex-shrink: 0;
}

.lang-toggle {
    padding: 12px 16px 0;
    display: flex;
    gap: 6px;
}

.lang-btn {
    flex: 1;
    padding: 8px;
    background: var(--bg-tertiary);
    border: 2px solid var(--bg-panel);
    border-radius: 10px;
    color: var(--text-dim);
    cursor: pointer;
    font-family: var(--font-pixel);
    font-size: 9px;
    letter-spacing: 1px;
    transition: all 0.2s;
}

.lang-btn:hover {
    border-color: var(--border-dark);
    color: var(--text-light);
}

.lang-btn.active {
    background: var(--bg-panel-active);
    border-color: var(--gold);
    color: var(--gold);
    box-shadow: 0 0 10px rgba(255, 177, 0, 0.08);
}

.sidebar-separator {
    margin: 12px 16px 0;
    height: 1px;
    background: var(--bg-panel);
    opacity: 0.6;
}

.sidebar-controls {
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.sidebar-controls .controls-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: 8px;
}

.control-btn {
    padding: 10px 12px;
    background: var(--bg-tertiary);
    border: 2px solid var(--bg-panel);
    border-radius: 12px;
    color: var(--text-light);
    cursor: pointer;
    font-family: var(--font-pixel);
    font-size: 8.5px;
    letter-spacing: 0.5px;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    text-align: center;
    line-height: 1.3;
}

.control-btn:hover {
    background: var(--bg-panel-hover);
    border-color: var(--border-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}

.control-btn:active {
    transform: translateY(0px);
}

.control-btn:focus-visible {
    outline: 2px solid var(--gold);
    outline-offset: 2px;
}

.control-btn.primary {
    background: var(--red-dark);
    border-color: var(--red-primary);
    color: white;
}

.control-btn.primary:hover {
    background: var(--red-primary);
    border-color: var(--red-bright);
    box-shadow: 0 0 20px rgba(240, 74, 74, 0.25);
}

.sidebar-footer {
    margin-top: auto;
    padding: 12px 16px;
    border-top: 2px solid var(--bg-panel);
    text-align: center;
}

.sidebar-footer p {
    font-family: var(--font-terminal);
    font-size: 13px;
    color: var(--text-dim);
    margin-bottom: 4px;
}

.sidebar-footer a {
    color: var(--gold);
    text-decoration: none;
    transition: color 0.2s;
}

.sidebar-footer a:hover {
    color: var(--gold-bright);
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 6px;
}

.social-links a {
    color: var(--text-dim);
    transition: all 0.2s;
    padding: 4px;
    border-radius: 6px;
}

.social-links a:hover {
    color: var(--gold);
    background: var(--bg-panel);
}

.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: var(--bg-primary);
}

#content-container {
    flex: 1;
    overflow-y: auto;
    padding: 28px 32px;
}

#content-container::-webkit-scrollbar {
    width: 8px;
}

#content-container::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

#content-container::-webkit-scrollbar-thumb {
    background: var(--bg-panel);
    border-radius: 4px;
    border: 2px solid var(--bg-primary);
}

#content-container::-webkit-scrollbar-thumb:hover {
    background: var(--bg-panel-hover);
}

.category-header {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
    border: 2px solid var(--bg-panel);
    padding: 20px 28px;
    margin-bottom: 20px;
    border-radius: 16px;
}

.category-header h2 {
    font-family: var(--font-pixel);
    font-size: 16px;
    color: var(--gold);
    margin-bottom: 14px;
    letter-spacing: 1px;
    text-shadow: 0 0 20px rgba(255, 177, 0, 0.12);
}

.stats {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.stat-item {
    background: var(--bg-panel);
    padding: 12px 18px;
    border: 2px solid var(--bg-panel-hover);
    border-radius: 12px;
    min-width: 130px;
}

.stat-label {
    font-family: var(--font-terminal);
    font-size: 13px;
    color: var(--text-dim);
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-value {
    font-family: var(--font-terminal);
    font-size: 26px;
    font-weight: 400;
    color: var(--gold);
    text-shadow: 0 0 12px rgba(255, 177, 0, 0.15);
}

.content-section {
    display: none;
}

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

.items-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 14px;
}

.empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 20px;
}

.empty-state i {
    font-size: 40px;
    color: var(--text-dim);
    opacity: 0.25;
    margin-bottom: 14px;
    display: block;
}

.empty-state p {
    font-family: var(--font-pixel);
    font-size: 11px;
    color: var(--text-mid);
    margin-bottom: 8px;
}

.empty-state span {
    font-family: var(--font-terminal);
    font-size: 15px;
    color: var(--text-dim);
}

.item-card {
    background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
    border: 2px solid var(--bg-panel);
    border-radius: 14px;
    padding: 14px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
    position: relative;
    overflow: hidden;
}

.item-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: 14px;
    opacity: 0;
    transition: opacity 0.2s;
}

.item-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.3);
    border-color: var(--border-dark);
}

.item-card:focus-visible {
    outline: 2px solid var(--gold);
    outline-offset: 2px;
}

.item-card.unlocked {
    border-color: var(--gold);
    box-shadow: 0 0 12px rgba(255, 177, 0, 0.08), inset 0 0 20px rgba(255, 177, 0, 0.03);
}

.item-card.unlocked::before {
    background: linear-gradient(135deg, var(--gold) 0%, var(--gold-bright) 100%);
    opacity: 0.06;
}

.item-card.unlocked:hover {
    border-color: var(--gold-bright);
    box-shadow: 0 0 24px rgba(255, 177, 0, 0.15), 0 8px 24px rgba(0,0,0,0.3);
}

.item-card.unlocked .status-badge {
    background: var(--gold);
    box-shadow: 0 0 8px rgba(255, 177, 0, 0.5);
}

.item-card.discovered {
    border-color: var(--blue-dark);
    opacity: 0.85;
}

.item-card.discovered::before {
    background: linear-gradient(135deg, var(--blue-primary) 0%, var(--blue-bright) 100%);
    opacity: 0.04;
}

.item-card.discovered:hover {
    border-color: var(--blue-bright);
    box-shadow: 0 0 20px rgba(10, 132, 255, 0.12);
    opacity: 1;
}

.item-card.discovered .status-badge {
    background: var(--blue-primary);
    box-shadow: 0 0 8px rgba(10, 132, 255, 0.4);
}

.item-card.discovered img {
    filter: drop-shadow(0 4px 8px rgba(0,0,0,0.3)) brightness(0.9);
}

.item-card.locked {
    border-color: var(--bg-panel-active);
    opacity: 0.45;
}

.item-card.locked::before {
    background: linear-gradient(135deg, var(--red-dark) 0%, var(--red-primary) 100%);
    opacity: 0.04;
}

.item-card.locked:hover {
    opacity: 0.65;
    border-color: var(--red-primary);
    box-shadow: 0 0 16px rgba(240, 74, 74, 0.1);
}

.item-card.locked .status-badge {
    background: var(--red-primary);
    box-shadow: 0 0 8px rgba(240, 74, 74, 0.4);
}

.item-card.locked img {
    filter: drop-shadow(0 4px 8px rgba(0,0,0,0.3)) grayscale(50%) brightness(0.7);
}

.item-card.image-error {
    border-style: dashed;
}

.item-card.image-error::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -80%);
    width: 28px;
    height: 28px;
    background: var(--text-dim);
    mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Crect x='3' y='3' width='18' height='18' rx='2' ry='2'/%3E%3Ccircle cx='8.5' cy='8.5' r='1.5'/%3E%3Cpolyline points='21 15 16 10 5 21'/%3E%3C/svg%3E") no-repeat center;
    mask-size: contain;
    -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Crect x='3' y='3' width='18' height='18' rx='2' ry='2'/%3E%3Ccircle cx='8.5' cy='8.5' r='1.5'/%3E%3Cpolyline points='21 15 16 10 5 21'/%3E%3C/svg%3E") no-repeat center;
    -webkit-mask-size: contain;
    opacity: 0.3;
    z-index: 2;
    pointer-events: none;
}

.item-card img {
    width: 100%;
    height: 130px;
    object-fit: contain;
    margin-bottom: 10px;
    position: relative;
    z-index: 1;
    filter: drop-shadow(0 4px 8px rgba(0,0,0,0.3));
    transition: filter 0.2s, opacity 0.3s;
}

.item-card img.loading {
    opacity: 0.35;
    animation: img-pulse 1.2s ease-in-out infinite;
}

.item-card img.loaded {
    opacity: 1;
}

.item-card img.error {
    opacity: 0.12;
    filter: grayscale(1) brightness(0.5) drop-shadow(0 4px 8px rgba(0,0,0,0.3));
}

@keyframes img-pulse {
    0%, 100% { opacity: 0.35; }
    50% { opacity: 0.65; }
}

.item-name {
    font-family: var(--font-terminal);
    font-size: 14px;
    color: var(--text-light);
    font-weight: 400;
    word-wrap: break-word;
    line-height: 1.3;
    position: relative;
    z-index: 1;
    margin-bottom: 8px;
}

.state-indicator {
    font-family: var(--font-terminal);
    font-size: 12px;
    color: var(--text-dim);
    letter-spacing: 0.3px;
    position: relative;
    z-index: 1;
    padding: 3px 10px;
    border-radius: 8px;
    background: var(--bg-panel);
    display: inline-block;
}

.item-card.unlocked .state-indicator {
    color: var(--gold);
    background: rgba(255, 177, 0, 0.08);
    border: 1px solid rgba(255, 177, 0, 0.15);
}

.item-card.discovered .state-indicator {
    color: var(--blue-bright);
    background: rgba(10, 132, 255, 0.08);
    border: 1px solid rgba(10, 132, 255, 0.15);
}

.item-card.locked .state-indicator {
    color: var(--red-primary);
    background: rgba(240, 74, 74, 0.08);
    border: 1px solid rgba(240, 74, 74, 0.15);
}

.status-badge {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--bg-panel-active);
    border: 2px solid var(--bg-secondary);
    z-index: 2;
}

.skeleton-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 14px;
}

.skeleton-card {
    background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
    border: 2px solid var(--bg-panel);
    border-radius: 14px;
    padding: 14px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.skeleton-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 177, 0, 0.06), transparent);
    animation: skeleton-loading 1.5s infinite;
}

.skeleton-image {
    width: 100%;
    height: 130px;
    background: var(--bg-panel);
    border-radius: 10px;
    margin-bottom: 10px;
}

.skeleton-text {
    height: 14px;
    background: var(--bg-panel);
    border-radius: 6px;
    margin: 0 auto;
    width: 80%;
}

.copyright {
    display: none;
}

.loading {
    text-align: center;
    padding: 80px 20px;
    font-family: var(--font-terminal);
    font-size: 18px;
    color: var(--text-dim);
}

@keyframes skeleton-loading {
    0% { left: -100%; }
    100% { left: 100%; }
}

@keyframes slideIn {
    from { transform: translateX(400px); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

@keyframes slideOut {
    from { transform: translateX(0); opacity: 1; }
    to { transform: translateX(400px); opacity: 0; }
}

input[type=number]::-webkit-inner-spin-button,
input[type=number]::-webkit-outer-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

input[type=number] {
  -moz-appearance: textfield;
  appearance: textfield;
}

@media (max-width: 768px) {
    .mobile-header {
        display: flex;
    }

    .container {
        padding-top: 64px;
    }

    .category-header {
        margin-bottom: 16px;
    }

    .sidebar {
        position: fixed;
        top: 64px;
        left: 0;
        bottom: 0;
        z-index: 999;
        transform: translateX(-100%);
        width: 280px;
    }

    .sidebar.active {
        transform: translateX(0);
    }

    .sidebar.active ~ .main-content::before {
        content: '';
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0,0,0,0.6);
        z-index: 998;
        pointer-events: auto;
    }

    .main-content {
        width: 100%;
    }

    .category-header {
        padding: 16px 20px;
    }

    .category-header h2 {
        font-size: 13px;
    }

    #content-container {
        padding: 16px 16px;
    }

    .items-grid,
    .skeleton-grid {
        grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
        gap: 10px;
    }

    .item-card {
        padding: 10px;
    }

    .item-card img {
        height: 90px;
    }

    .skeleton-image {
        height: 90px;
    }

    .stats {
        gap: 10px;
    }

    .stat-item {
        flex: 1;
        min-width: 100px;
        padding: 10px 14px;
    }

    .stat-value {
        font-size: 22px;
    }
}