/* =========================================================
   Word Combiner - Plugin Styles
   Scoped under .wc-wrapper to avoid theme conflicts.
   ========================================================= */

.wc-wrapper {
    /* Design tokens */
    --wc-primary: #2a7f8c;
    --wc-primary-dark: #1f5f6a;
    --wc-primary-light: #e8f4f6;
    --wc-accent: #3a9aa9;
    --wc-bg: #ffffff;
    --wc-surface: #f7fafb;
    --wc-surface-2: #eef5f7;
    --wc-border: #d8e4e7;
    --wc-text: #1a2b2f;
    --wc-text-muted: #5a6f74;
    --wc-text-light: #8a9ba0;
    --wc-danger: #d9534f;
    --wc-success: #2eaf6a;
    --wc-radius: 14px;
    --wc-radius-sm: 10px;
    --wc-radius-lg: 20px;
    --wc-shadow-sm: 0 1px 3px rgba(20, 50, 60, 0.06), 0 1px 2px rgba(20, 50, 60, 0.04);
    --wc-shadow: 0 4px 16px rgba(20, 50, 60, 0.08), 0 1px 3px rgba(20, 50, 60, 0.04);
    --wc-shadow-lg: 0 10px 30px rgba(20, 50, 60, 0.12), 0 2px 6px rgba(20, 50, 60, 0.06);
    --wc-transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --wc-font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

    font-family: var(--wc-font);
    color: var(--wc-text);
    line-height: 1.5;
    max-width: 820px;
    margin: 2rem auto;
    padding: 0 1rem;
    box-sizing: border-box;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.wc-wrapper *,
.wc-wrapper *::before,
.wc-wrapper *::after {
    box-sizing: border-box;
}

/* Dark theme overrides */
.wc-wrapper[data-theme="dark"] {
    --wc-bg: #1a2529;
    --wc-surface: #223036;
    --wc-surface-2: #2c3d44;
    --wc-border: #36474f;
    --wc-text: #e8f0f2;
    --wc-text-muted: #9caeb3;
    --wc-text-light: #6b7d82;
    --wc-primary-light: #2c4147;
}

/* =========================================================
   Card
   ========================================================= */
.wc-card {
    background: var(--wc-bg);
    border: 1px solid var(--wc-border);
    border-radius: var(--wc-radius-lg);
    padding: clamp(1.5rem, 4vw, 2.5rem);
    box-shadow: var(--wc-shadow);
    position: relative;
    overflow: hidden;
}

.wc-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--wc-primary) 0%, var(--wc-accent) 50%, var(--wc-primary) 100%);
    background-size: 200% 100%;
    animation: wc-gradient-shift 8s ease-in-out infinite;
}

@keyframes wc-gradient-shift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

/* =========================================================
   Language switcher
   ========================================================= */
.wc-lang-switch {
    display: inline-flex;
    gap: 0.25rem;
    padding: 4px;
    background: var(--wc-surface);
    border: 1px solid var(--wc-border);
    border-radius: 999px;
    margin-bottom: 1.25rem;
}

.wc-lang-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.35rem 0.85rem;
    border: none;
    background: transparent;
    color: var(--wc-text-muted);
    font-size: 0.82rem;
    font-weight: 600;
    font-family: inherit;
    border-radius: 999px;
    cursor: pointer;
    transition: all var(--wc-transition);
    letter-spacing: 0.02em;
}

.wc-lang-btn:hover {
    color: var(--wc-text);
}

.wc-lang-btn[aria-pressed="true"] {
    background: var(--wc-primary);
    color: #ffffff;
    box-shadow: 0 2px 6px rgba(42, 127, 140, 0.3);
}

.wc-flag {
    font-size: 0.95rem;
    line-height: 1;
}

/* =========================================================
   Header
   ========================================================= */
.wc-header {
    text-align: center;
    margin-bottom: 1.75rem;
}

.wc-title {
    font-size: clamp(1.75rem, 4.5vw, 2.25rem);
    font-weight: 700;
    color: var(--wc-primary);
    margin: 0 0 0.6rem 0;
    letter-spacing: -0.02em;
    line-height: 1.15;
}

.wc-subtitle {
    color: var(--wc-text-muted);
    font-size: 0.98rem;
    margin: 0 auto;
    max-width: 560px;
    line-height: 1.55;
}

/* =========================================================
   Input panel
   ========================================================= */
.wc-input-panel {
    background: var(--wc-surface);
    border: 1px solid var(--wc-border);
    border-radius: var(--wc-radius);
    padding: clamp(1rem, 3vw, 1.5rem);
}

.wc-inputs-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

@media (max-width: 520px) {
    .wc-inputs-grid {
        grid-template-columns: 1fr;
    }
}

.wc-input-wrap {
    position: relative;
}

.wc-input {
    width: 100%;
    padding: 0.85rem 1.1rem;
    background: var(--wc-bg);
    border: 1.5px solid var(--wc-border);
    border-radius: 999px;
    font-size: 0.95rem;
    font-family: inherit;
    color: var(--wc-text);
    transition: all var(--wc-transition);
    outline: none;
}

.wc-input::placeholder {
    color: var(--wc-text-light);
}

.wc-input:hover {
    border-color: var(--wc-accent);
}

.wc-input:focus {
    border-color: var(--wc-primary);
    box-shadow: 0 0 0 3px rgba(42, 127, 140, 0.15);
}

/* =========================================================
   Options (collapsible)
   ========================================================= */
.wc-options {
    margin-bottom: 1rem;
    border: 1px solid var(--wc-border);
    border-radius: var(--wc-radius-sm);
    background: var(--wc-bg);
    overflow: hidden;
}

.wc-options-summary {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.7rem 1rem;
    cursor: pointer;
    list-style: none;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--wc-text-muted);
    user-select: none;
    transition: background var(--wc-transition);
}

.wc-options-summary::-webkit-details-marker {
    display: none;
}

.wc-options-summary:hover {
    background: var(--wc-surface-2);
    color: var(--wc-text);
}

.wc-options[open] .wc-options-summary {
    border-bottom: 1px solid var(--wc-border);
    color: var(--wc-text);
}

.wc-options-body {
    padding: 0.9rem 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.wc-option-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    color: var(--wc-text);
}

.wc-option-row input[type="checkbox"] {
    width: 1rem;
    height: 1rem;
    accent-color: var(--wc-primary);
    cursor: pointer;
}

.wc-option-inline {
    display: flex;
    gap: 1.25rem;
    flex-wrap: wrap;
}

.wc-option-inline label {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--wc-text-muted);
    font-size: 0.88rem;
}

.wc-option-inline input[type="number"] {
    width: 64px;
    padding: 0.4rem 0.55rem;
    border: 1.5px solid var(--wc-border);
    border-radius: var(--wc-radius-sm);
    font-size: 0.88rem;
    font-family: inherit;
    background: var(--wc-bg);
    color: var(--wc-text);
    outline: none;
    transition: border-color var(--wc-transition);
}

.wc-option-inline input[type="number"]:focus {
    border-color: var(--wc-primary);
}

/* =========================================================
   Action buttons
   ========================================================= */
.wc-actions {
    display: flex;
    gap: 0.6rem;
    justify-content: center;
    flex-wrap: wrap;
}

.wc-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.85rem 1.75rem;
    border: none;
    border-radius: 999px;
    font-size: 0.95rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: all var(--wc-transition);
    text-decoration: none;
    white-space: nowrap;
    line-height: 1;
}

.wc-btn:disabled {
    opacity: 0.55;
    cursor: not-allowed;
}

.wc-btn-primary {
    background: var(--wc-primary);
    color: #ffffff;
    box-shadow: 0 2px 8px rgba(42, 127, 140, 0.25);
    min-width: 180px;
}

.wc-btn-primary:hover:not(:disabled) {
    background: var(--wc-primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 14px rgba(42, 127, 140, 0.35);
}

.wc-btn-primary:active:not(:disabled) {
    transform: translateY(0);
}

.wc-btn-secondary {
    background: var(--wc-bg);
    color: var(--wc-text-muted);
    border: 1.5px solid var(--wc-border);
}

.wc-btn-secondary:hover:not(:disabled) {
    background: var(--wc-surface-2);
    color: var(--wc-text);
    border-color: var(--wc-accent);
}

.wc-btn-ghost {
    background: transparent;
    color: var(--wc-text-muted);
    padding: 0.55rem 0.9rem;
    font-size: 0.85rem;
    border: 1px solid var(--wc-border);
}

.wc-btn-ghost:hover:not(:disabled) {
    background: var(--wc-surface);
    color: var(--wc-primary);
    border-color: var(--wc-primary);
}

.wc-icon {
    width: 1rem;
    height: 1rem;
    flex-shrink: 0;
}

/* =========================================================
   Messages
   ========================================================= */
.wc-message {
    margin-top: 0.9rem;
    padding: 0;
    font-size: 0.88rem;
    color: var(--wc-danger);
    text-align: center;
    min-height: 1.2em;
    transition: opacity var(--wc-transition);
}

/* =========================================================
   Results
   ========================================================= */
.wc-results {
    margin-top: 1.75rem;
    animation: wc-fade-in 0.4s ease-out;
}

@keyframes wc-fade-in {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

.wc-results-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 1rem;
    padding-bottom: 0.85rem;
    border-bottom: 1px solid var(--wc-border);
}

.wc-results-title-wrap {
    display: flex;
    align-items: baseline;
    gap: 0.6rem;
    flex-wrap: wrap;
}

.wc-results-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--wc-text);
    margin: 0;
    letter-spacing: -0.01em;
}

.wc-results-count {
    font-size: 0.82rem;
    color: var(--wc-text-muted);
    background: var(--wc-primary-light);
    padding: 0.15rem 0.55rem;
    border-radius: 999px;
    font-weight: 600;
}

.wc-results-controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.wc-control-group {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

.wc-control-label {
    font-size: 0.82rem;
    color: var(--wc-text-muted);
    font-weight: 500;
}

.wc-sort {
    padding: 0.4rem 0.7rem;
    border: 1px solid var(--wc-border);
    border-radius: var(--wc-radius-sm);
    font-size: 0.85rem;
    font-family: inherit;
    background: var(--wc-bg);
    color: var(--wc-text);
    cursor: pointer;
    outline: none;
    transition: border-color var(--wc-transition);
}

.wc-sort:focus {
    border-color: var(--wc-primary);
}

/* =========================================================
   Categories + chips
   ========================================================= */
.wc-categories {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.wc-category {
    background: var(--wc-surface);
    border: 1px solid var(--wc-border);
    border-radius: var(--wc-radius);
    padding: 1rem 1.15rem;
}

.wc-category-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.6rem;
    margin-bottom: 0.75rem;
}

.wc-category-title {
    font-size: 0.88rem;
    font-weight: 700;
    color: var(--wc-primary);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin: 0;
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
}

.wc-category-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--wc-primary);
    display: inline-block;
    flex-shrink: 0;
}

.wc-category-count {
    font-size: 0.78rem;
    color: var(--wc-text-muted);
    font-weight: 500;
}

.wc-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.45rem;
}

.wc-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.45rem 0.85rem;
    background: var(--wc-bg);
    border: 1.5px solid var(--wc-border);
    border-radius: 999px;
    font-size: 0.92rem;
    color: var(--wc-text);
    cursor: pointer;
    transition: all var(--wc-transition);
    font-family: inherit;
    font-weight: 500;
    position: relative;
    animation: wc-chip-in 0.3s ease-out backwards;
}

@keyframes wc-chip-in {
    from { opacity: 0; transform: scale(0.85); }
    to { opacity: 1; transform: scale(1); }
}

.wc-chip:hover {
    border-color: var(--wc-primary);
    background: var(--wc-primary-light);
    color: var(--wc-primary-dark);
    transform: translateY(-1px);
}

.wc-chip.wc-chip-copied {
    background: var(--wc-success);
    border-color: var(--wc-success);
    color: #ffffff;
}

.wc-chip-text {
    pointer-events: none;
}

.wc-chip-len {
    font-size: 0.7rem;
    color: var(--wc-text-light);
    background: var(--wc-surface-2);
    padding: 1px 6px;
    border-radius: 999px;
    font-weight: 600;
    pointer-events: none;
}

.wc-chip.wc-chip-copied .wc-chip-len {
    background: rgba(255,255,255,0.25);
    color: #ffffff;
}

/* =========================================================
   No results
   ========================================================= */
.wc-no-results {
    text-align: center;
    padding: 2rem 1rem;
    color: var(--wc-text-muted);
    font-size: 0.95rem;
    background: var(--wc-surface);
    border-radius: var(--wc-radius);
    border: 1px dashed var(--wc-border);
}

/* =========================================================
   Footer
   ========================================================= */
.wc-footer {
    margin-top: 1.5rem;
    text-align: center;
}

.wc-tip {
    font-size: 0.82rem;
    color: var(--wc-text-light);
    margin: 0;
    font-style: italic;
}

/* =========================================================
   Loading state
   ========================================================= */
.wc-btn-primary.wc-loading {
    pointer-events: none;
    opacity: 0.8;
}

.wc-btn-primary.wc-loading .wc-icon {
    animation: wc-spin 0.8s linear infinite;
}

@keyframes wc-spin {
    to { transform: rotate(360deg); }
}

/* =========================================================
   Mobile refinements
   ========================================================= */
@media (max-width: 520px) {
    .wc-wrapper {
        margin: 1rem auto;
    }

    .wc-actions {
        flex-direction: column;
    }

    .wc-btn {
        width: 100%;
    }

    .wc-results-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .wc-results-controls {
        width: 100%;
        justify-content: space-between;
    }

    .wc-category-header {
        flex-wrap: wrap;
    }
}

/* =========================================================
   Prefers reduced motion
   ========================================================= */
@media (prefers-reduced-motion: reduce) {
    .wc-wrapper *,
    .wc-wrapper *::before,
    .wc-wrapper *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}