/*
 * Global CSS - Shared styles for all tools
 * aaronmedina-dev.github.io
 */

/* CSS Variables */
:root {
    --bg-primary: #0a0f1a;
    --bg-secondary: #111827;
    --bg-card: #1a2234;
    --text-primary: #f3f4f6;
    --text-secondary: #9ca3af;
    --accent: #3b82f6;
    --accent-hover: #2563eb;
    --border: #1f2937;
    --border-light: #374151;
    --success: #22c55e;
    --success-hover: #16a34a;
    --danger: #ef4444;
    --danger-hover: #dc2626;
    --warning: #f59e0b;
    --warning-hover: #d97706;
}

/* Reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    background-color: var(--bg-primary);
}

/* Base Body */
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    padding: 20px;
}

/* Back Link */
.back-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    margin-bottom: 24px;
    transition: color 0.2s;
}

.back-link:hover {
    color: var(--accent);
}

/* Container */
.container {
    max-width: 900px;
    margin: 0 auto;
    background: var(--bg-secondary);
    padding: 32px;
    border: 1px solid var(--border);
    border-radius: 12px;
}

/* Typography */
h1 {
    text-align: center;
    color: var(--text-primary);
    font-size: 1.75rem;
    margin-bottom: 24px;
}

h2, h3, h4 {
    color: var(--text-primary);
}

/* Form Controls */
input[type="text"],
input[type="number"],
select {
    width: 100%;
    padding: 10px 12px;
    border-radius: 6px;
    border: 1px solid var(--border);
    background: var(--bg-card);
    color: var(--text-primary);
    font-size: 0.9rem;
    transition: border-color 0.2s;
}

input[type="text"]:focus,
input[type="number"]:focus,
select:focus {
    outline: none;
    border-color: var(--accent);
}

input[type="text"]::placeholder,
input[type="number"]::placeholder {
    color: var(--text-secondary);
}

/* Textarea */
textarea,
.textarea {
    width: 100%;
    padding: 16px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 0.9rem;
    font-family: 'Monaco', 'Menlo', 'Fira Code', monospace;
    color: var(--text-primary);
    resize: vertical;
    transition: border-color 0.2s;
}

textarea:focus,
.textarea:focus {
    outline: none;
    border-color: var(--accent);
}

textarea::placeholder,
.textarea::placeholder {
    color: var(--text-secondary);
}

/* Buttons */
button,
.btn {
    color: #fff;
    border: none;
    cursor: pointer;
    border-radius: 6px;
    transition: all 0.2s;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    font-size: 0.9rem;
}

button:hover,
.btn:hover {
    transform: translateY(-1px);
}

/* Button Variants */
.btn-primary {
    background-color: var(--accent);
}

.btn-primary:hover {
    background-color: var(--accent-hover);
}

.btn-success {
    background-color: var(--success);
}

.btn-success:hover {
    background-color: var(--success-hover);
}

.btn-danger {
    background-color: var(--danger);
}

.btn-danger:hover {
    background-color: var(--danger-hover);
}

.btn-warning {
    background-color: var(--warning);
}

.btn-warning:hover {
    background-color: var(--warning-hover);
}

.btn-secondary {
    background-color: var(--border-light);
}

.btn-secondary:hover {
    background-color: #4b5563;
}

/* Button Groups */
.button-group {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

/* Tables */
table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    padding: 12px;
    text-align: left;
    border: 1px solid var(--border);
}

th {
    background-color: var(--bg-card);
    color: var(--text-primary);
    font-weight: 600;
    font-size: 0.85rem;
}

td {
    background-color: var(--bg-secondary);
}

/* Form Layout Helpers */
.form-control {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-control label {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

/* Actions Row */
.actions {
    display: flex;
    gap: 12px;
    justify-content: flex-end;
    margin: 16px 0;
    flex-wrap: wrap;
}

/* Hint/Note Text */
.hint {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Code/Output Blocks */
.output,
pre {
    background-color: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 16px;
    font-family: 'Monaco', 'Menlo', 'Fira Code', monospace;
    font-size: 0.9rem;
    color: var(--text-primary);
    white-space: pre-wrap;
    line-height: 1.7;
}

/* Grid distortion background */
.grid-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    opacity: 0.4;
}

.mobile-dots {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    opacity: 0.3;
    background-image: radial-gradient(circle, rgba(59, 130, 246, 0.4) 1.5px, transparent 1.5px);
    background-size: 30px 30px;
}

@media (max-width: 768px) {
    .grid-canvas {
        display: none;
    }
    .mobile-dots {
        display: block;
    }
}

/* Responsive */
@media (max-width: 640px) {
    body {
        padding: 12px;
    }

    .container {
        padding: 20px;
    }

    .grid-2 {
        grid-template-columns: 1fr;
    }

    h1 {
        font-size: 1.5rem;
    }

    .actions {
        justify-content: center;
    }
}