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

:root {
    --bg: #f7f2f5;
    --surface: #ffffff;
    --surface-muted: #f1e4ea;
    --text: #362933;
    --text-muted: #7c6673;
    --accent: #b85d7e;
    --accent-strong: #963f60;
    --border: #d8c3cd;
    --divider: #e6d5dd;
    --warning-bg: #f7dfe7;
    --warning-text: #8d425d;
    --transition: 0.22s ease;
}

[data-theme="dark"] {
    --bg: #1f1620;
    --surface: #291c27;
    --surface-muted: #342333;
    --text: #f1e9ed;
    --text-muted: #caa7b7;
    --accent: #e88fb0;
    --accent-strong: #f6c1d2;
    --border: #4a3042;
    --divider: #392736;
    --warning-bg: #3b2431;
    --warning-text: #f3b3c8;
}

body {
    font-family: 'Georgia', 'Garamond', serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: background var(--transition), color var(--transition);
}

.container {
    width: min(920px, 100%);
    margin: 0 auto;
    padding: 48px 32px 64px;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 32px;
    transition: background var(--transition), border var(--transition);
}

.header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--divider);
    padding-bottom: 24px;
    gap: 16px;
    transition: border var(--transition);
}

h1 {
    font-size: 40px;
    font-weight: 400;
    letter-spacing: 2px;
    color: var(--text);
}

.theme-toggle {
    width: 44px;
    height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text);
    cursor: pointer;
    transition: color var(--transition), border var(--transition), background var(--transition);
}

.theme-toggle:hover,
.theme-toggle:focus {
    outline: none;
    border-color: var(--accent);
    color: var(--accent-strong);
}

.theme-icon {
    font-size: 18px;
    line-height: 1;
    letter-spacing: 0.5px;
}

.warning-message {
    background: var(--warning-bg);
    color: var(--warning-text);
    padding: 12px 20px;
    text-align: center;
    border: 1px solid var(--accent);
    font-size: 14px;
    letter-spacing: 0.6px;
    display: none;
}

.warning-message.show {
    display: block;
}

.input-section {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.button-group {
    display: flex;
    gap: 8px;
}

label {
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 13px;
    color: var(--text-muted);
}

input[type="text"]:not(.letter-square) {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text);
    font-size: 15px;
    font-family: 'Georgia', 'Garamond', serif;
    text-transform: uppercase;
    transition: border var(--transition), background var(--transition), color var(--transition);
}

input[type="text"]:not(.letter-square):focus {
    outline: none;
    border-color: var(--accent);
}

.position-inputs {
    display: grid;
    grid-template-columns: repeat(5, 64px);
    gap: 12px;
    justify-content: center;
}

.letter-square {
    width: 64px;
    height: 64px;
    border: 1px solid var(--border);
    background: var(--surface);
    padding: 0;
    font-weight: 400;
    font-size: 28px;
    text-transform: uppercase;
    color: var(--text);
    font-family: 'Georgia', 'Garamond', serif;
    text-align: center;
    caret-color: var(--accent);
    border-radius: 6px;
    cursor: text;
    transition: border var(--transition), background var(--transition), color var(--transition);
    appearance: none;
}

.letter-square:focus {
    outline: none;
    border-color: var(--accent);
}

.letter-square.active {
    border-color: var(--accent);
}

.letter-square.filled {
    background: var(--surface-muted);
    color: var(--accent-strong);
}

.wrong-position-display {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.wrong-chip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 14px;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: var(--surface);
    color: var(--text);
    font-family: 'Georgia', 'Garamond', serif;
    letter-spacing: 0.6px;
    text-transform: uppercase;
    cursor: pointer;
    transition: border var(--transition), background var(--transition), color var(--transition);
}

.wrong-chip:hover,
.wrong-chip:focus {
    outline: none;
    border-color: var(--accent);
    color: var(--accent-strong);
}

button:not(.theme-toggle):not(.wrong-chip) {
    padding: 12px 22px;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--accent);
    font-family: 'Georgia', 'Garamond', serif;
    font-weight: 600;
    letter-spacing: 0.8px;
    text-transform: uppercase;
    cursor: pointer;
    transition: color var(--transition), border var(--transition), background var(--transition);
    flex: 1;
}

button:not(.theme-toggle):not(.wrong-chip):hover,
button:not(.theme-toggle):not(.wrong-chip):focus {
    outline: none;
    border-color: var(--accent);
    color: var(--accent-strong);
}

button:not(.theme-toggle):not(.wrong-chip) + button:not(.theme-toggle):not(.wrong-chip) {
    margin-left: 8px;
}

.results-section {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

h2 {
    font-size: 18px;
    font-weight: 400;
    letter-spacing: 1px;
    text-align: center;
    color: var(--text-muted);
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 12px;
    justify-items: center;
}

.word-item {
    border: 1px solid var(--border);
    background: var(--surface);
    padding: 16px 12px;
    text-align: center;
    letter-spacing: 1px;
    color: var(--text);
    transition: border var(--transition), color var(--transition);
}

.word-item:hover {
    border-color: var(--accent);
    color: var(--accent-strong);
}

.placeholder {
    padding: 20px 0;
    color: var(--text-muted);
    text-align: center;
    grid-column: 1 / -1;
    justify-self: center;
    font-style: italic;
    letter-spacing: 0.6px;
}

@media (max-width: 640px) {
    .container {
        padding: 24px 16px 40px;
        gap: 24px;
    }

    .header {
        flex-direction: row;
        align-items: center;
        padding-bottom: 16px;
    }

    h1 {
        font-size: 28px;
        letter-spacing: 1.5px;
    }

    .input-section {
        gap: 32px;
    }

    .position-inputs {
        grid-template-columns: repeat(5, 1fr);
        gap: 6px;
    }

    .letter-square {
        width: 100%;
        height: 56px;
        font-size: 22px;
        touch-action: manipulation;
    }

    input[type="text"]:not(.letter-square) {
        padding: 16px;
        font-size: 16px;
    }

    button:not(.theme-toggle):not(.wrong-chip) {
        padding: 16px 24px;
        font-size: 14px;
        touch-action: manipulation;
    }

    .results-grid {
        grid-template-columns: repeat(auto-fill, minmax(96px, 1fr));
    }
}