:root,
[data-theme="light"] {
    --font-display: 'Inter', 'Segoe UI', sans-serif;
    --font-body: 'Cormorant Garamond', Georgia, serif;
    --font-ui: 'Inter', 'Segoe UI', sans-serif;
    --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
    --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
    --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
    --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
    --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
    --text-2xl: clamp(2rem, 1.2rem + 2.5vw, 3.5rem);

    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;

    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.25rem;
    --radius-full: 9999px;

    --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);

    --color-bg: #f5f5f0;
    --color-surface: rgba(255, 255, 255, 0.84);
    --color-surface-2: rgba(246, 246, 240, 0.95);
    --color-surface-offset: rgba(230, 232, 239, 0.88);
    --color-border: rgba(23, 27, 39, 0.12);
    --color-divider: rgba(23, 27, 39, 0.12);
    --color-text: #101625;
    --color-text-muted: #4f576b;
    --color-text-faint: #7a849d;
    --color-text-inverse: #f5f7fb;
    --color-primary: #0c8a43;
    --color-primary-hover: #0a7338;
    --color-primary-highlight: rgba(12, 138, 67, 0.12);
    --color-success: #0ecb57;
    --color-warning: #ffb547;
    --color-error: #ff4d5d;

    --content-default: 980px;

    --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06);
    --shadow-md: 0 10px 30px rgba(15, 23, 42, 0.12);
    --shadow-lg: 0 24px 60px rgba(15, 23, 42, 0.18);

    --body-grad-1: rgba(12, 138, 67, 0.10);
    --body-grad-2: rgba(120, 154, 255, 0.10);
    --body-grad-3: rgba(255, 204, 128, 0.10);
    --body-base: linear-gradient(180deg, #f8f7f2 0%, #f1efe8 50%, #ece8dd 100%);

    --glass-surface: rgba(255, 255, 255, 0.58);
    --glass-surface-strong: rgba(255, 255, 255, 0.72);
    --input-border: rgba(23, 27, 39, 0.14);
    --list-border: rgba(23, 27, 39, 0.08);
    --empty-border: rgba(23, 27, 39, 0.16);
    --card-shine: linear-gradient(130deg, rgba(255, 255, 255, 0.42), transparent 45%, rgba(12, 138, 67, 0.10));
    --modal-backdrop: rgba(240, 236, 227, 0.72);
    --modal-surface: rgba(255, 255, 255, 0.96);
    --hover-surface: rgba(12, 138, 67, 0.10);
}

[data-theme="dark"] {
    --color-bg: #030b23;
    --color-surface: rgba(15, 24, 53, 0.78);
    --color-surface-2: rgba(23, 35, 72, 0.9);
    --color-surface-offset: rgba(13, 21, 46, 0.88);
    --color-border: rgba(164, 184, 255, 0.14);
    --color-divider: rgba(164, 184, 255, 0.14);
    --color-text: #edf1ff;
    --color-text-muted: #b7c1e2;
    --color-text-faint: #8e99bf;
    --color-text-inverse: #08111e;
    --color-primary: #22c55e;
    --color-primary-hover: #16a34a;
    --color-primary-highlight: rgba(34, 197, 94, 0.14);
    --color-success: #15d062;
    --color-warning: #f6c453;
    --color-error: #ff4258;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.25);
    --shadow-md: 0 18px 40px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 30px 80px rgba(0, 0, 0, 0.45);

    --body-grad-1: rgba(25, 72, 180, 0.16);
    --body-grad-2: rgba(50, 110, 255, 0.08);
    --body-grad-3: rgba(24, 63, 168, 0.12);
    --body-base: linear-gradient(180deg, #031134 0%, #020b24 45%, #01091c 100%);

    --glass-surface: rgba(255, 255, 255, 0.03);
    --glass-surface-strong: rgba(255, 255, 255, 0.05);
    --input-border: rgba(164, 184, 255, 0.18);
    --list-border: rgba(164, 184, 255, 0.08);
    --empty-border: rgba(164, 184, 255, 0.16);
    --card-shine: linear-gradient(130deg, rgba(255, 255, 255, 0.05), transparent 40%, rgba(52, 110, 255, 0.06));
    --modal-backdrop: rgba(1, 6, 18, 0.72);
    --modal-surface: rgba(7, 16, 37, 0.95);
    --hover-surface: rgba(34, 197, 94, 0.12);
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --color-bg: #030b23;
        --color-surface: rgba(15, 24, 53, 0.78);
        --color-surface-2: rgba(23, 35, 72, 0.9);
        --color-surface-offset: rgba(13, 21, 46, 0.88);
        --color-border: rgba(164, 184, 255, 0.14);
        --color-divider: rgba(164, 184, 255, 0.14);
        --color-text: #edf1ff;
        --color-text-muted: #b7c1e2;
        --color-text-faint: #8e99bf;
        --color-text-inverse: #08111e;
        --color-primary: #22c55e;
        --color-primary-hover: #16a34a;
        --color-primary-highlight: rgba(34, 197, 94, 0.14);
        --color-success: #15d062;
        --color-warning: #f6c453;
        --color-error: #ff4258;

        --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.25);
        --shadow-md: 0 18px 40px rgba(0, 0, 0, 0.3);
        --shadow-lg: 0 30px 80px rgba(0, 0, 0, 0.45);

        --body-grad-1: rgba(25, 72, 180, 0.16);
        --body-grad-2: rgba(50, 110, 255, 0.08);
        --body-grad-3: rgba(24, 63, 168, 0.12);
        --body-base: linear-gradient(180deg, #031134 0%, #020b24 45%, #01091c 100%);

        --glass-surface: rgba(255, 255, 255, 0.03);
        --glass-surface-strong: rgba(255, 255, 255, 0.05);
        --input-border: rgba(164, 184, 255, 0.18);
        --list-border: rgba(164, 184, 255, 0.08);
        --empty-border: rgba(164, 184, 255, 0.16);
        --card-shine: linear-gradient(130deg, rgba(255, 255, 255, 0.05), transparent 40%, rgba(52, 110, 255, 0.06));
        --modal-backdrop: rgba(1, 6, 18, 0.72);
        --modal-surface: rgba(7, 16, 37, 0.95);
        --hover-surface: rgba(34, 197, 94, 0.12);
    }
}

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

html {
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    scroll-behavior: smooth;
}

body {
    min-height: 100dvh;
    font-family: var(--font-body);
    font-size: var(--text-base);
    color: var(--color-text);
    background:
        radial-gradient(circle at top, var(--body-grad-1), transparent 30%),
        radial-gradient(circle at 20% 20%, var(--body-grad-2), transparent 20%),
        radial-gradient(circle at 80% 80%, var(--body-grad-3), transparent 26%),
        var(--body-base);
    line-height: 1.6;
    transition:
        background var(--transition-interactive),
        color var(--transition-interactive);
}

img,
svg {
    display: block;
    max-width: 100%;
}

button,
input,
select {
    font: inherit;
    color: inherit;
}

button {
    border: none;
    background: none;
    cursor: pointer;
}

input::placeholder {
    color: var(--color-text-faint);
}

:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 3px;
    border-radius: var(--radius-sm);
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

.app-shell {
    max-width: var(--content-default);
    margin: 0 auto;
    min-height: 100dvh;
    padding: clamp(1.25rem, 3vw, 2.5rem) var(--space-4) var(--space-12);
    display: grid;
    place-items: start center;
}

.panel {
    width: 100%;
    max-width: 660px;
    display: grid;
    gap: var(--space-6);
    justify-items: center;
}

.topbar {
    width: 100%;
    margin-bottom: var(--space-2);
}

.topbar-controls {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-3);
    flex-wrap: wrap;
}

.control-group {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    flex-wrap: wrap;
}

.theme-toggle,
.control-select,
.pill-btn,
.guess-input,
.rule-card,
.verse-card,
.modal,
.autocomplete-list,
.guess-card {
    transition:
        background-color var(--transition-interactive),
        border-color var(--transition-interactive),
        color var(--transition-interactive),
        box-shadow var(--transition-interactive),
        opacity var(--transition-interactive);
}

.theme-toggle {
    min-width: 44px;
    min-height: 44px;
    border-radius: var(--radius-full);
    display: inline-grid;
    place-items: center;
    color: var(--color-text);
    background: var(--glass-surface);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
    backdrop-filter: blur(16px);
}

.title-wrap {
    text-align: center;
    display: grid;
    gap: var(--space-2);
}

.logo-row {
    display: inline-flex;
    align-items: center;
    gap: var(--space-3);
    justify-content: center;
}

.wordmark {
    font-family: var(--font-ui);
    font-size: clamp(2rem, 4vw, 3rem);
    letter-spacing: 0.34em;
    text-transform: uppercase;
    font-weight: 800;
}

.date-label,
.meta-line,
.subtle-label {
    font-family: var(--font-ui);
    font-size: var(--text-xs);
    letter-spacing: 0.28em;
    text-transform: uppercase;
    color: var(--color-text-muted);
    font-weight: 700;
}

.verse-card {
    width: 100%;
    padding: clamp(1.5rem, 4vw, 2.75rem);
    background: linear-gradient(180deg, var(--glass-surface-strong), var(--glass-surface));
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    backdrop-filter: blur(14px);
    box-shadow: var(--shadow-lg);
    min-height: 275px;
    display: grid;
    place-items: center;
    position: relative;
    overflow: hidden;
}

.verse-card::before {
    content: "";
    position: absolute;
    inset: 0;
    background: var(--card-shine);
    pointer-events: none;
}

.verse-text {
    position: relative;
    z-index: 1;
    text-align: center;
    font-size: clamp(1.8rem, 2.7vw, 2.9rem);
    line-height: 1.22;
    max-width: 20ch;
    text-wrap: balance;
}

.controls {
    width: 100%;
    display: grid;
    gap: var(--space-4);
    justify-items: center;
}

.attempt-line {
    display: grid;
    gap: var(--space-1);
    justify-items: center;
    text-align: center;
}

.input-shell {
    width: 100%;
    position: relative;
}

.guess-input {
    width: 100%;
    min-height: 68px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--input-border);
    background: var(--color-surface-offset);
    padding: 0 var(--space-5) 0 3.75rem;
    color: var(--color-text);
    font-family: var(--font-ui);
    font-size: var(--text-base);
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.02);
    backdrop-filter: blur(16px);
}

.input-icon {
    position: absolute;
    left: 1.2rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-text-faint);
    pointer-events: none;
}

.autocomplete-list {
    position: absolute;
    left: 0;
    right: 0;
    top: calc(100% + 0.5rem);
    background: var(--modal-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    backdrop-filter: blur(20px);
    overflow: hidden;
    z-index: 40;
    display: none;
}

.autocomplete-list[data-open="true"] {
    display: block;
}

.suggestion {
    width: 100%;
    text-align: left;
    padding: 0.95rem 1rem;
    font-family: var(--font-ui);
    font-size: 0.98rem;
    border-bottom: 1px solid var(--list-border);
}

.suggestion:last-child {
    border-bottom: 0;
}

.suggestion:hover,
.suggestion[aria-selected="true"] {
    background: var(--hover-surface);
}

#guessRows {
    width: 100%;
    display: grid;
    gap: 0.85rem;
}

.header-row,
.guess-grid {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: var(--space-3);
    align-items: stretch;
}

.header-row {
    font-family: var(--font-ui);
    font-size: 0.78rem;
    text-transform: none;
    font-weight: 700;
    color: var(--color-text);
    opacity: 0.92;
    text-align: center;
    padding-inline: 0.15rem;
}

.header-row div {
    padding-bottom: 0.25rem;
}

.guess-grid {
    margin-top: 0.1rem;
}

.guess-card {
    min-height: 82px;
    border-radius: var(--radius-md);
    display: grid;
    place-items: center;
    padding: var(--space-3);
    font-family: var(--font-ui);
    font-weight: 800;
    font-size: clamp(1rem, 1.2vw, 1.2rem);
    text-align: center;
    letter-spacing: -0.01em;
    border: 1px solid rgba(255, 255, 255, 0.06);
    box-shadow: var(--shadow-sm);
}

.correct {
    background: linear-gradient(180deg, #12d450, #08b744);
    color: #eefbf2;
}

.partial {
    background: linear-gradient(180deg, #f2c453, #df9f16);
    color: #201603;
}

.wrong {
    background: linear-gradient(180deg, #ff3349, #eb3f46);
    color: #fff4f6;
}

.empty-state {
    width: 100%;
    min-height: 82px;
    border-radius: var(--radius-md);
    border: 1px dashed var(--empty-border);
    background: var(--glass-surface);
    display: grid;
    place-items: center;
    color: var(--color-text-faint);
    font-family: var(--font-ui);
    font-size: var(--text-sm);
}

.helper,
.status-line,
.footer-note {
    width: 100%;
    text-align: center;
    color: var(--color-text-muted);
    font-family: var(--font-ui);
    font-size: 0.94rem;
}

.helper {
    display: grid;
    gap: 0.3rem;
}

.status-line {
    min-height: 1.7rem;
}

.pill-actions {
    display: flex;
    gap: var(--space-3);
    flex-wrap: wrap;
    justify-content: center;
}

.pill-btn,
.control-select {
    min-height: 44px;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-full);
    border: 1px solid var(--color-border);
    font-family: var(--font-ui);
    font-size: 0.92rem;
    font-weight: 700;
    background: var(--glass-surface);
    color: var(--color-text);
    backdrop-filter: blur(14px);
}

.control-select {
    appearance: none;
}

.control-select:disabled {
    opacity: 0.55;
    cursor: not-allowed;
}

.pill-btn.primary {
    background: var(--color-primary);
    color: #f3fff6;
    border-color: transparent;
}

.rules {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-3);
}

.rule-card {
    background: var(--glass-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    backdrop-filter: blur(14px);
}

.rule-card h3 {
    font-family: var(--font-ui);
    font-size: 0.95rem;
    margin-bottom: 0.4rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.rule-card p {
    color: var(--color-text-muted);
    font-family: var(--font-ui);
    font-size: 0.95rem;
    line-height: 1.5;
}

.modal-backdrop {
    position: fixed;
    inset: 0;
    background: var(--modal-backdrop);
    display: none;
    place-items: center;
    padding: var(--space-4);
    z-index: 90;
    backdrop-filter: blur(10px);
}

.modal-backdrop[data-open="true"] {
    display: grid;
}

.modal {
    width: min(100%, 560px);
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border);
    background: var(--modal-surface);
    box-shadow: var(--shadow-lg);
    padding: var(--space-6);
    display: grid;
    gap: var(--space-4);
}

.modal h2 {
    font-family: var(--font-ui);
    font-size: var(--text-xl);
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.modal p,
.modal li {
    font-family: var(--font-ui);
    color: var(--color-text-muted);
    font-size: 0.98rem;
    line-height: 1.7;
    max-width: 62ch;
}

.modal ul {
    padding-left: 1rem;
}

@media (max-width: 720px) {
    .app-shell {
        padding-inline: 0.9rem;
    }

    .verse-card {
        min-height: 230px;
    }

    .verse-text {
        font-size: clamp(1.45rem, 6vw, 2.1rem);
        max-width: 18ch;
    }

    .header-row,
    .guess-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .rules {
        grid-template-columns: 1fr;
    }

    .guess-card,
    .empty-state {
        min-height: 74px;
    }

    .topbar-controls,
    .control-group {
        justify-content: center;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}