/**
 * Array Box Theme CSS
 * Dark mode CSS variables for array language interfaces
 */

/* Font faces for array languages */
@font-face {
    font-family: 'BQN';
    src: url('../fonts/BQN386.ttf') format('truetype');
}
@font-face {
    font-family: 'Uiua';
    src: url('../fonts/Uiua386.ttf') format('truetype');
}
@font-face {
    font-family: 'J';
    src: url('../fonts/Apl385.ttf') format('truetype');
}
@font-face {
    font-family: 'APL';
    src: url('../fonts/Apl385.ttf') format('truetype');
}
@font-face {
    font-family: 'Kap';
    src: url('../fonts/APL387.ttf') format('truetype');
}
@font-face {
    font-family: 'TinyAPL';
    src: url('../fonts/TinyAPL386.ttf') format('truetype');
}

/* Dark mode (always on) - using Tailwind gray palette */
:root {
    /* Gradient background: from-gray-900 via-gray-800 to-gray-900 */
    --bg-gradient: linear-gradient(to bottom right, #111827, #1f2937, #111827);
    --bg-color: #111827;           /* gray-900 */
    --text-color: #e5e7eb;         /* gray-200 */
    --border-color: #4b5563;       /* gray-600 */
    --border-hover: #6b7280;       /* gray-500 */
    --input-bg: #1f2937;           /* gray-800 */
    --output-bg: #1f2937;          /* gray-800 */
    --dropdown-bg: #1f2937;        /* gray-800 */
    --dropdown-hover: #374151;     /* gray-700 */
    --shadow-color: rgba(0, 0, 0, 0.4);
    --focus-color: #22c55e;        /* green-500 */
    --error-color: #ef4444;        /* red-500 */
    
    /* Dracula color palette */
    --dracula-cyan:    #8BE9FD;
    --dracula-green:   #50FA7B;
    --dracula-yellow:  #F1FA8C;
    --dracula-pink:    #FF79C6;
    --dracula-purple:  #BD93F9;
    --dracula-comment: #6272A4;
    --dracula-fg:      #F8F8F2;
    
    /* Syntax color assignments - SINGLE SOURCE OF TRUTH */
    /* Shared */
    --syntax-number:  var(--dracula-purple);
    --syntax-comment: var(--dracula-comment);
    --syntax-default: var(--dracula-fg);
    
    /* Uiua (monadic/dyadic for both functions and modifiers) */
    --syntax-uiua-function-monadic: var(--dracula-cyan);
    --syntax-uiua-function-dyadic:  var(--dracula-green);
    --syntax-uiua-modifier-monadic: var(--dracula-yellow);
    --syntax-uiua-modifier-dyadic:  var(--dracula-pink);
    
    /* Other languages (APL, BQN, J, Kap, TinyAPL) */
    --syntax-function:         var(--dracula-cyan);
    --syntax-modifier-monadic: var(--dracula-green);
    --syntax-modifier-dyadic:  var(--dracula-yellow);
}

/* Syntax highlighting classes */
.syntax-number  { color: var(--syntax-number); }
.syntax-comment { color: var(--syntax-comment); }

.syntax-uiua-function-monadic { color: var(--syntax-uiua-function-monadic); }
.syntax-uiua-function-dyadic  { color: var(--syntax-uiua-function-dyadic); }
.syntax-uiua-modifier-monadic { color: var(--syntax-uiua-modifier-monadic); }
.syntax-uiua-modifier-dyadic  { color: var(--syntax-uiua-modifier-dyadic); }

.syntax-function         { color: var(--syntax-function); }
.syntax-modifier-monadic { color: var(--syntax-modifier-monadic); }
.syntax-modifier-dyadic  { color: var(--syntax-modifier-dyadic); }

/* Language-specific font classes */
.font-bqn {
    font-family: 'BQN', 'Courier New', monospace;
}

.font-uiua {
    font-family: 'Uiua', 'Courier New', monospace;
}

.font-j {
    font-family: 'JetBrains Mono', monospace;
    font-variant-ligatures: none;
}

.font-apl {
    font-family: 'APL', 'Courier New', monospace;
}

.font-tinyapl {
    font-family: 'TinyAPL', 'Courier New', monospace;
}

/* Visual Keyboard Styles */
.keyboard-overlay {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--input-bg);
    border: 3px solid var(--border-color);
    border-radius: 21px;
    padding: 28px;
    box-shadow: 0 14px 56px var(--shadow-color);
    z-index: 1000;
    display: none;
    max-width: 95vw;
}

.keyboard-overlay.show {
    display: block;
}

.keyboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 21px;
    padding-bottom: 14px;
    border-bottom: 2px solid var(--border-color);
}

.keyboard-title {
    font-family: 'JetBrains Mono', monospace;
    font-size: 24px;
    font-variant-ligatures: none;
    color: var(--text-color);
    opacity: 0.8;
}

.keyboard-hint {
    font-family: 'JetBrains Mono', monospace;
    font-size: 21px;
    font-variant-ligatures: none;
    color: var(--border-hover);
}

.keyboard-row {
    display: flex;
    gap: 7px;
    margin-bottom: 7px;
    justify-content: center;
}

.keyboard-key {
    width: 84px;
    height: 84px;
    background: var(--dropdown-bg);
    border: 2px solid var(--border-color);
    border-radius: 11px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
    transition: background-color 0.15s, border-color 0.15s;
}

.keyboard-key:hover {
    background: var(--dropdown-hover);
    border-color: var(--border-hover);
}

.keyboard-key.wide-1-5 {
    width: 133px;
}

.keyboard-key.wide-2 {
    width: 182px;
}

.keyboard-key.space {
    width: 490px;
}

.key-symbol {
    font-size: 35px;
    line-height: 1;
}

/* Language-specific fonts for symbols */
.keyboard-overlay.bqn .key-symbol,
.keyboard-overlay.bqn .key-shift-symbol {
    font-family: 'BQN', 'Courier New', monospace;
}

.keyboard-overlay.apl .key-symbol,
.keyboard-overlay.apl .key-shift-symbol {
    font-family: 'APL', 'Courier New', monospace;
}

.keyboard-overlay.kap .key-symbol,
.keyboard-overlay.kap .key-shift-symbol {
    font-family: 'Kap', 'Courier New', monospace;
}

.keyboard-overlay.tinyapl .key-symbol,
.keyboard-overlay.tinyapl .key-shift-symbol {
    font-family: 'TinyAPL', 'Courier New', monospace;
}

.key-symbol.empty {
    color: var(--border-color);
}

/* Syntax highlighting for keyboard symbols */
.key-symbol.syntax-number  { color: var(--syntax-number); }
.key-symbol.syntax-default { color: var(--syntax-default); }

.key-symbol.syntax-uiua-function-monadic { color: var(--syntax-uiua-function-monadic); }
.key-symbol.syntax-uiua-function-dyadic  { color: var(--syntax-uiua-function-dyadic); }
.key-symbol.syntax-uiua-modifier-monadic { color: var(--syntax-uiua-modifier-monadic); }
.key-symbol.syntax-uiua-modifier-dyadic  { color: var(--syntax-uiua-modifier-dyadic); }

.key-symbol.syntax-function         { color: var(--syntax-function); }
.key-symbol.syntax-modifier-monadic { color: var(--syntax-modifier-monadic); }
.key-symbol.syntax-modifier-dyadic  { color: var(--syntax-modifier-dyadic); }

.key-label {
    font-family: 'JetBrains Mono', monospace;
    font-size: 16px;
    font-variant-ligatures: none;
    color: var(--border-hover);
    position: absolute;
    bottom: 5px;
    right: 7px;
}

.key-shift-symbol {
    font-size: 21px;
    position: absolute;
    top: 5px;
    left: 7px;
    line-height: 1;
}

.key-shift-symbol.empty {
    color: var(--border-color);
}

/* Syntax highlighting for shifted symbols */
.key-shift-symbol.syntax-number  { color: var(--syntax-number); }
.key-shift-symbol.syntax-default { color: var(--syntax-default); }

.key-shift-symbol.syntax-uiua-function-monadic { color: var(--syntax-uiua-function-monadic); }
.key-shift-symbol.syntax-uiua-function-dyadic  { color: var(--syntax-uiua-function-dyadic); }
.key-shift-symbol.syntax-uiua-modifier-monadic { color: var(--syntax-uiua-modifier-monadic); }
.key-shift-symbol.syntax-uiua-modifier-dyadic  { color: var(--syntax-uiua-modifier-dyadic); }

.key-shift-symbol.syntax-function         { color: var(--syntax-function); }
.key-shift-symbol.syntax-modifier-monadic { color: var(--syntax-modifier-monadic); }
.key-shift-symbol.syntax-modifier-dyadic  { color: var(--syntax-modifier-dyadic); }