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

:root {
    --correct: #6aaa64;
    --present: #c9b458;
    --absent: #787c7e;
    --empty: #121213;
    --border: #3a3a3c;
    --bg: #121213;
    --bg-secondary: #1a1a1b;
    --text: #ffffff;
    --tile-bg: #121213;
    --tile-border: #3a3a3c;
    --key-bg: #818384;
    --key-used: #3a3a3c;
}

[data-theme="light"] {
    --correct: #6aaa64;
    --present: #c9b458;
    --absent: #787c7e;
    --empty: #ffffff;
    --border: #d3d6da;
    --bg: #f3f3f3;
    --bg-secondary: #ffffff;
    --text: #1a1a1b;
    --tile-bg: #ffffff;
    --tile-border: #d3d6da;
    --key-bg: #d3d6da;
    --key-used: #787c7e;
}

html {
    height: 100%;
    height: 100dvh;
    overflow: hidden;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--bg);
    color: var(--text);
    display: flex;
    flex-direction: column;
    touch-action: manipulation;
    height: 100%;
    height: 100dvh;
    overflow: hidden;
    margin: 0;
    transition: background-color 0.3s, color 0.3s;
}

header {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8px 16px;
    padding-top: max(8px, env(safe-area-inset-top));
    flex-shrink: 0;
    position: relative;
}

@supports (padding-top: env(safe-area-inset-top)) {
    header {
        padding-top: max(8px, env(safe-area-inset-top));
    }
}

@supports not (padding-top: env(safe-area-inset-top)) {
    header {
        padding-top: 8px;
    }
}

header h1 {
    font-size: 24px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin: 0;
    color: var(--bg);
}

.header-btn {
    width: 30px;
    height: 30px;
    border: none;
    border-radius: 50%;
    background-color: var(--key-bg);
    color: var(--text);
    font-size: 16px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.3s, transform 0.1s;
}

.header-btn:active {
    transform: scale(0.95);
}

.header-right {
    position: absolute;
    top: 6px;
    right: 6px;
    display: flex;
    gap: 6px;
}

.header-left {
    position: absolute;
    top: 6px;
    left: 5px;
    display: flex;
}

.achievements {
    display: flex;
    gap: 4px;
}

.achievements {
    display: flex;
    gap: 4px;
}

.achievement-btn {
    width: 30px;
    height: 30px;
    border: none;
    border-radius: 50%;
    background-color: var(--key-bg);
    color: var(--text);
    font-size: 18px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.3s, transform 0.1s;
}

.achievement-btn:hover {
    transform: scale(1.1);
}

.achievement-btn:active {
    transform: scale(0.95);
}

.coins-display {
    position: absolute;
    top: 14px;
    left: 14px;
    font-size: 14px;
    font-weight: 600;
    display: flex;
    align-items: center;
}

.hint-modal-content {
    position: relative;
    padding-top: 70px;
}

.coin-icon {
    width: 30px;
    height: 30px;
    margin-right: 4px;
    border-radius: 50%;
    background-color: var(--bg);
}

#btn-search-toggle.active {
    background-color: var(--correct);
}

main {
    flex: 1;
    flex-shrink: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 15px 8px 8px;
    gap: 8px;
    min-height: 0;
    overflow: hidden;
}

#game-board {
    display: grid;
    grid-template-rows: repeat(6, 1fr);
    gap: 5px;
    width: 100%;
    max-width: 350px;
    aspect-ratio: 5 / 6;
}

.row {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 5px;
    width: 100%;
}

.tile {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    font-weight: 700;
    text-transform: uppercase;
    background-color: var(--tile-bg);
    border: 2px solid var(--tile-border);
    transition: transform 0.1s, background-color 0.3s, border-color 0.3s;
}

.tile.flip {
    animation: flip 0.5s ease forwards;
}

.tile.correct {
    background-color: var(--correct);
    border-color: var(--correct);
}

.tile.present {
    background-color: var(--present);
    border-color: var(--present);
}

.tile.absent {
    background-color: var(--absent);
    border-color: var(--absent);
}

@keyframes flip {
    0% { transform: rotateX(0); }
    50% { transform: rotateX(90deg); }
    100% { transform: rotateX(0); }
}

@keyframes pop {
    0% { transform: scale(1); }
    50% { transform: scale(1.1); }
    100% { transform: scale(1); }
}

.tile.pop {
    animation: pop 0.1s ease;
}

#message {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 2000;
    min-height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    font-weight: 600;
    text-align: center;
    padding: 8px 16px;
    border-radius: 4px;
    opacity: 0;
    transition: opacity 0.3s;
    pointer-events: none;
}

#message.show {
    opacity: 1;
}

#message.success {
    background-color: var(--correct);
}

#message.error {
    background-color: var(--absent);
}

footer {
    padding: 8px;
    padding-bottom: max(8px, env(safe-area-inset-bottom));
    background-color: var(--bg);
    flex-shrink: 0;
}

#keyboard {
    display: flex;
    flex-direction: column;
    gap: 6px;
    max-width: 100%;
    padding: 0 4px;
    margin: 0 auto;
}

.keyboard-row {
    display: flex;
    justify-content: center;
    gap: 4px;
    padding: 0;
}

.key {
    min-width: 28px;
    height: 48px;
    border-radius: 4px;
    background-color: var(--key-bg);
    color: var(--text);
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex: 1;
    max-width: 36px;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
    transition: background-color 0.3s;
}

.key:active {
    transform: scale(0.95);
}

.key.wide {
    min-width: 44px;
    max-width: 56px;
    font-size: 12px;
}

.key.wide[data-key="✔"] {
    font-size: 20px;
    background-color: var(--correct);
}

.key.correct {
    background-color: var(--correct);
}

.key.present {
    background-color: var(--present);
}

.key.absent {
    background-color: var(--key-used);
}

.key:not(.correct):not(.present):not(.absent) {
    background-color: var(--key-bg);
}

@media (max-height: 650px) {
    .tile {
        font-size: 22px;
    }
    
    .key {
        height: 44px;
    }
    
    header h1 {
        font-size: 20px;
    }
}

@media (max-height: 550px) {
    .tile {
        font-size: 18px;
    }
    
    .key {
        height: 38px;
    }
    
    header h1 {
        font-size: 18px;
    }
    
    header {
        padding: 8px;
    }
}

@media (min-width: 600px) {
    .tile {
        font-size: 40px;
    }
    
    .key {
        min-width: 36px;
        height: 52px;
        max-width: 44px;
    }
}

@media screen and (max-width: 479px) {
    main {
        padding: 20px 8px 4px;
        justify-content: flex-start;
    }
    
    .key {
        min-width: 24px;
        font-size: 15px;
        max-width: 30px;
    }
    
    .key.wide {
        min-width: 38px;
        max-width: 48px;
        font-size: 14px;
    }
}

.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 20px;
}

.modal.hidden {
    display: none;
}

.modal-content {
    background-color: var(--bg-secondary);
    border: 2px solid var(--border);
    border-radius: 8px;
    padding: 24px;
    max-width: 320px;
    width: 100%;
    text-align: center;
    transition: background-color 0.3s, border-color 0.3s;
}

#modal-title {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 16px;
}

#modal-word {
    font-size: 36px;
    font-weight: 700;
    letter-spacing: 8px;
    text-transform: uppercase;
    margin-bottom: 12px;
}

#modal-description {
    font-size: 14px;
    color: #888;
    margin-bottom: 20px;
    min-height: 40px;
    line-height: 1.4;
}

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

.modal-btn {
    padding: 14px 24px;
    font-size: 16px;
    font-weight: 700;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: transform 0.1s;
    width: 100%;
}

.modal-btn:active {
    transform: scale(0.95);
}

#btn-new-game {
    background-color: var(--correct);
    color: white;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    10%, 30%, 50%, 70%, 90% { transform: translateX(-5px); }
    20%, 40%, 60%, 80% { transform: translateX(5px); }
}
@keyframes hint-pulse {
    0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(106, 170, 100, 0.7); }
    50% { transform: scale(1.1); box-shadow: 0 0 20px 5px rgba(106, 170, 100, 0.7); }
}
.key.hint {
    animation: hint-pulse 0.5s ease;
    background-color: var(--correct) !important;
}

.key.hint-present {
    background-color: var(--present) !important;
}

.key.hint-dimmed {
    opacity: 0.4;
}

@keyframes hint-pulse-present {
    0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(201, 180, 88, 0.7); }
    50% { transform: scale(1.1); box-shadow: 0 0 20px 5px rgba(201, 180, 88, 0.7); }
}

#info-modal .modal-content {
    text-align: left;
    max-width: 360px;
}

#info-modal h2 {
    margin-bottom: 16px;
    text-align: center;
}

#info-modal p {
    margin-bottom: 12px;
    line-height: 1.4;
}

.modal-close {
    position: absolute;
    top: 10px;
    right: 14px;
    font-size: 20px;
    cursor: pointer;
    color: var(--text);
    opacity: 0.6;
}

.modal-close:hover {
    opacity: 1;
}

.info-example {
    display: flex;
    gap: 4px;
    margin: 12px 0;
}

.info-tile {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 700;
    text-transform: uppercase;
    background-color: var(--tile-bg);
    border: 2px solid var(--tile-border);
}

.info-tile.correct {
    background-color: var(--correct);
    border-color: var(--correct);
}

.info-tile.present {
    background-color: var(--present);
    border-color: var(--present);
}

.info-tile.absent {
    background-color: var(--absent);
    border-color: var(--absent);
}

#info-modal .modal-content > p:last-of-type {
    margin-bottom: 0;
}

#info-modal .coin-icon {
    border-radius: 50%;
    background-color: var(--bg);
}

.hint-modal-content {
    position: relative;
    padding-top: 30px;
}

.hint-modal-content > h2 {
    margin-top: 0;
    margin-bottom: 16px;
}

.hint-modal-content > p {
    margin-bottom: 16px;
    text-align: center;
}

.hint-options {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.hint-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    background-color: var(--bg);
    border: 2px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    cursor: pointer;
    transition: background-color 0.2s, border-color 0.2s;
    text-align: left;
}

.hint-btn:hover {
    background-color: var(--bg-secondary);
    border-color: var(--key-bg);
}

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

.hint-icon {
    font-size: 24px;
    flex-shrink: 0;
}

.hint-text {
    font-size: 16px;
    font-weight: 700;
}

.hint-desc {
    font-size: 12px;
    opacity: 0.7;
    flex: 1;
    text-align: right;
}

@media (display-mode: standalone) {
    header {
        padding-top: max(16px, env(safe-area-inset-top));
    }
    
    .coins-display {
        top: max(16px, env(safe-area-inset-top));
    }
    
    #message {
        top: max(120px, calc(env(safe-area-inset-top) + 100px));
    }
    
    footer {
        padding-bottom: max(35px, env(safe-area-inset-bottom));
    }
    
    .key {
        font-size: 15px;
    }
    
    .key.wide {
        font-size: 14px;
    }
}

.achievement-modal-content {
    position: relative;
    padding: 24px;
}

.achievement-modal-content h2 {
    margin-bottom: 16px;
}

#achievements-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.achievement-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    background-color: var(--bg);
    border-radius: 8px;
    border: 1px solid var(--border);
}

.achievement-item.locked {
    opacity: 0.5;
}

.achievement-icon {
    font-size: 32px;
    flex-shrink: 0;
}

.achievement-info {
    flex: 1;
}

.achievement-name {
    font-weight: 600;
    font-size: 14px;
    margin-bottom: 4px;
}

.achievement-desc {
    font-size: 12px;
    opacity: 0.7;
}

.achievement-count {
    text-align: right;
}

.achievement-times {
    font-size: 18px;
    font-weight: 700;
    color: var(--correct);
}

.achievement-reward {
    font-size: 12px;
    opacity: 0.7;
}