:root {
    --bg-primary: #0f0f1a;
    --bg-secondary: #1e1e38;
    --bg-tertiary: #16162a;
    --bg-table: #111122;
    --bg-header: #1a1a4d;
    --text-primary: #e0e0ff;
    --text-secondary: #a5b4fc;
    --text-muted: #8888aa;
    --text-error: #ff6b6b;
    --border-color: #333366;
    --accent-primary: #4f46e5;
    --accent-secondary: #6366f1;
    --bit-1-bg: #6366f1;
    --bit-1-text: white;
    --highlight-bg: #a47703;
    --highlight-text: #0f0f1a;
    --highlight-shadow: rgba(109, 78, 0, 0.8);
    --hovered-bg: #222268;
    --hovered-text: #c7d2fe;
    --index-hovered: #2b2b4e;
}

body.light-theme {
    --bg-primary: #f5f5f5;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f8f8f8;
    --bg-table: #fafafa;
    --bg-header: #f0f0f0;
    --text-primary: #222222;
    --text-secondary: #4f46e5;
    --text-muted: #666666;
    --text-error: #c41e3a;
    --border-color: #ddd;
    --accent-primary: #4f46e5;
    --accent-secondary: #6366f1;
    --bit-1-bg: #4f46e5;
    --bit-1-text: black;
    --highlight-bg: #ffc107;
    --highlight-text: #222222;
    --highlight-shadow: rgba(255, 193, 7, 0.4);
    --hovered-bg: #e6e6fa;
    --hovered-text: #2d1b69;
    --index-hovered: #f0f0f5;
}

body {
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    padding: 30px;
    line-height: 1.5;
    transition: background 0.3s ease, color 0.3s ease;
}

h1 {
    color: var(--text-secondary);
    text-align: center;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
}

.input-area {
    text-align: center;
    margin: 2rem 0;
}

.input-wrapper {
    position: relative;
    display: inline-block;
    width: 380px;
}

input[type="text"] {
    width: 100%;
    padding: 12px 16px;
    font-family: "Courier New", Courier, monospace;
    font-size: 1.2rem;
    background: var(--bg-secondary);
    color: transparent;
    border: 2px solid var(--accent-primary);
    border-radius: 8px;
    position: relative;
    z-index: 1;
    caret-color: var(--text-primary);
}

.input-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    padding: 12px 16px;
    border: 2px solid transparent;
    font-family: "Courier New", Courier, monospace;
    font-size: 1.2rem;
    pointer-events: none;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    border-radius: 8px;
    box-sizing: border-box;
    z-index: 2;
}

.input-overlay span {
    display: inline-block;
    text-align: center;
    color: var(--text-primary);
}

.char-highlighted {
    background: var(--highlight-bg);
    color: var(--highlight-text);
    border-radius: 3px;
    box-shadow: 0 0 6px var(--highlight-shadow);
}

.error {
    color: var(--text-error);
    margin-top: 0.5rem;
    font-size: 0.95rem;
}

table.bit-table {
    border-collapse: collapse;
    margin: 2rem auto;
    font-family: "Courier New", Courier, monospace;
    background: var(--bg-table);
    box-shadow: 0 0 20px rgba(79, 70, 229, 0.15);
}

table.bit-table th,
table.bit-table td {
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    text-align: center;
    min-width: 32px;
}

table.bit-table th {
    background: var(--bg-header);
    color: var(--text-secondary);
    font-weight: bold;
}

table.bit-table td {
    background: var(--bg-tertiary);
}

.bit-1 {
    background: var(--bit-1-bg);
    color: var(--bit-1-text);
    font-weight: bold;
}

.bit-0 {
    color: var(--text-muted);
}

.bit-hovered {
    background: var(--hovered-bg) !important;
    color: var(--hovered-text) !important;
    box-shadow: none !important;
}

.index-hovered {
    background: var(--index-hovered) !important;
    box-shadow: none !important;
}

.nibble-group {
    border-right: 3px solid var(--accent-primary) !important;
}

.byte-group {
    border-right: 5px double var(--accent-secondary) !important;
}

.c-array {
    background: var(--bg-secondary);
    border: 2px solid var(--accent-primary);
    border-radius: 8px;
    padding: 12px 16px;
    font-family: "Courier New", Courier, monospace;
    font-size: 1rem;
    color: var(--text-primary);
    word-break: break-all;
    max-width: 900px;
    margin: 0 auto 1rem;
    text-align: left;
    user-select: all;
    cursor: pointer;
}

.c-array-label {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 0.3rem;
}

.c-array-label select {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--accent-primary);
    border-radius: 4px;
    padding: 4px 8px;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    font-size: 0.9rem;
    margin-left: 0.5rem;
}

.row-gap td,
.row-gap th {
    border: none !important;
    background: transparent !important;
    padding: 6px 0 !important;
}

[v-cloak] {
    /* Hide elements with v-cloak attribute until Vue.js is ready */
    display: none !important;
}