/* ─── Letter Counter — Premium Stylesheet ─────────────────────────────────────
   Scoped entirely to #fu-text-letter-counter.
   Uses standard design system variables (--fu-*).
   ─────────────────────────────────────────────────────────────────────────── */

#fu-text-letter-counter {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    width: 100%;
}

/* Custom CSS variables for dynamic alpha frequency coloring */
#fu-text-letter-counter {
    --fu-lc-accent-rgb: 59, 130, 246; /* Brand Blue RGB component */
}

/* Standard Panels */
#fu-text-letter-counter .fu-panel {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    min-width: 0;
    box-sizing: border-box;
}

/* Editor Panel textarea styling */
#fu-text-letter-counter .fu-lc-input-textarea {
    min-height: 130px;
    height: 130px;
    box-sizing: border-box;
    resize: vertical;
}

/* Density Panel body */
#fu-text-letter-counter .fu-panel-body {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

/* Spacing overrides for density panel to align with standard styling */
#fu-text-letter-counter .fu-lc-density-panel .fu-panel-header {
    margin-bottom: 0.5rem;
}

#fu-text-letter-counter .fu-lc-density-panel .fu-panel-body {
    gap: 0.5rem;
}

/* 13-Column Alphabet Grid on Desktop */
#fu-text-letter-counter .fu-lc-alphabet-grid {
    display: grid;
    grid-template-columns: repeat(13, 1fr);
    gap: 0.5rem;
    width: 100%;
}

/* Symmetrical Letter Cards */
#fu-text-letter-counter .fu-lc-char-card {
    background: var(--fu-bg);
    border: 1px solid var(--fu-border);
    border-radius: var(--fu-radius);
    height: 54px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 0.35rem;
    box-sizing: border-box;
    box-shadow: 0 1px 2px rgba(0,0,0,0.03);
    transition: transform var(--fu-transition), border-color var(--fu-transition), box-shadow var(--fu-transition), background-color var(--fu-transition);
}

#fu-text-letter-counter .fu-lc-char-card:hover {
    transform: translateY(-2px);
    border-color: var(--fu-accent);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.06);
}

/* Highlighted Vowels styling */
#fu-text-letter-counter .fu-lc-char-card.vowel {
    border-color: rgba(217, 119, 6, 0.25);
}

#fu-text-letter-counter .fu-lc-char-card.vowel:hover {
    border-color: #d97706;
}

/* Faded zero-counts style */
#fu-text-letter-counter .fu-lc-char-card.empty-char {
    opacity: 0.35;
    background: transparent !important;
}

#fu-text-letter-counter .fu-lc-char-card.empty-char:hover {
    opacity: 1;
}

#fu-text-letter-counter .fu-lc-card-char {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--fu-text);
    line-height: 1.1;
}

#fu-text-letter-counter .fu-lc-card-count {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--fu-text-muted);
    line-height: 1;
    margin-top: 0.15rem;
}

/* Secondary tags for spaces/numbers */
#fu-text-letter-counter .fu-lc-secondary-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 0.5rem;
    padding-top: 0.5rem;
    border-top: 1px dashed var(--fu-border);
}

#fu-text-letter-counter .fu-lc-secondary-tag {
    background: var(--fu-input-bg);
    border: 1px solid var(--fu-border);
    border-radius: 12px;
    padding: 0.25rem 0.65rem;
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--fu-text-muted);
}

#fu-text-letter-counter .fu-lc-secondary-tag span {
    color: var(--fu-text);
    margin-left: 0.25rem;
}



/* Section divider */
#fu-text-letter-counter .fu-lc-divider {
    border-top: 1px dashed var(--fu-border);
    margin: 0.1rem 0;
    width: 100%;
}

/* Toolbar and Controls */
#fu-text-letter-counter .fu-lc-toolbar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 1.5rem;
    width: 100%;
    padding: 0.25rem 0;
}

#fu-text-letter-counter .fu-lc-toolbar-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

#fu-text-letter-counter .fu-lc-toolbar-divider {
    width: 1px;
    height: 24px;
    background: var(--fu-border);
    margin: 0 0.25rem;
}

#fu-text-letter-counter .fu-lc-toolbar-label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--fu-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-right: 0.25rem;
}

#fu-text-letter-counter .fu-lc-preset-btn {
    background: transparent;
    border: 1px solid var(--fu-border);
    border-radius: var(--fu-radius);
    padding: 0.35rem 0.6rem;
    font-family: var(--fu-font-family);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--fu-text-muted);
    cursor: pointer;
    transition: border-color var(--fu-transition), color var(--fu-transition), background var(--fu-transition);
    line-height: 1.2;
}

#fu-text-letter-counter .fu-lc-preset-btn:hover {
    border-color: var(--fu-accent);
    color: var(--fu-accent);
    background: var(--fu-accent-light);
}

#fu-text-letter-counter .fu-lc-preset-btn.active {
    background-color: var(--fu-accent);
    border-color: var(--fu-accent);
    color: var(--fu-btn-primary-text) !important;
    font-weight: 600;
}

/* Symmetrical Switch Row */
#fu-text-letter-counter .fu-lc-switches-group {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 1rem 1.5rem;
}

#fu-text-letter-counter .fu-lc-toolbar-switch {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

#fu-text-letter-counter .fu-lc-switch-label {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--fu-text-muted);
    user-select: none;
}

/* iOS Toggle Switch */
#fu-text-letter-counter .fu-switch {
    position: relative;
    display: inline-block;
    width: 32px;
    height: 18px;
    flex-shrink: 0;
}

#fu-text-letter-counter .fu-switch input {
    opacity: 0;
    width: 0;
    height: 0;
    position: absolute;
}

#fu-text-letter-counter .fu-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--fu-border);
    transition: background-color 0.2s ease-in-out;
    border-radius: 18px;
}

#fu-text-letter-counter .fu-slider:before {
    position: absolute;
    content: "";
    height: 12px;
    width: 12px;
    left: 3px;
    bottom: 3px;
    background-color: #fff;
    transition: transform 0.2s ease-in-out;
    border-radius: 50%;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.15);
}

#fu-text-letter-counter .fu-switch input:checked + .fu-slider {
    background-color: var(--fu-accent);
}

#fu-text-letter-counter .fu-switch input:checked + .fu-slider:before {
    transform: translateX(14px);
}

/* Responsive Rules */
@media (max-width: 820px) {
    #fu-text-letter-counter .fu-lc-alphabet-grid {
        grid-template-columns: repeat(9, 1fr);
    }
    #fu-text-letter-counter .fu-lc-toolbar {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    #fu-text-letter-counter .fu-lc-toolbar-divider {
        display: none;
    }
}

@media (max-width: 480px) {
    #fu-text-letter-counter .fu-lc-alphabet-grid {
        grid-template-columns: repeat(6, 1fr);
    }
}