/**
 * OrangeTool - Tool Page Styles
 * ─────────────────────────────
 * Styles specific to individual tool pages (tool-header, tool-box,
 * form controls, result boxes, and info sections).
 *
 * Load AFTER css/style.css
 */

/* ── Tool Page Layout ──────────────────────────────────────────────────────── */
.tool-header {
    text-align: center;
    padding: 50px 0 30px;
}

.tool-header h1 {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--secondary);
    margin-bottom: 10px;
}

.tool-header p {
    font-size: 1rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto;
}

/* ── Tool Box (Main Card) ──────────────────────────────────────────────────── */
.tool-box {
    background: #fff;
    padding: 36px;
    border-radius: var(--r-lg);
    border: 1px solid var(--border);
    box-shadow: var(--card-shadow);
    max-width: 820px;
    margin: 0 auto 60px;
}

/* ── Form Controls ─────────────────────────────────────────────────────────── */
.form-group {
    margin-bottom: 22px;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-main);
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border);
    border-radius: var(--r-md);
    font-size: 1rem;
    font-family: inherit;
    color: var(--text-main);
    background: #fff;
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(255, 107, 0, 0.1);
}

select.form-control {
    cursor: pointer;
}

textarea.form-control {
    resize: vertical;
    min-height: 120px;
}

/* ── Action Button ─────────────────────────────────────────────────────────── */
.calc-btn {
    width: 100%;
    padding: 15px;
    background: var(--primary);
    color: #fff;
    border: none;
    border-radius: var(--r-md);
    font-weight: 700;
    cursor: pointer;
    font-size: 1rem;
    font-family: inherit;
    transition: background 0.2s, transform 0.1s;
    letter-spacing: 0.2px;
}

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

.calc-btn:active {
    transform: scale(0.99);
}

/* ── Result Box ────────────────────────────────────────────────────────────── */
.result-box {
    margin-top: 24px;
    padding: 24px;
    background: linear-gradient(135deg, #fff7f2, #fff);
    border: 1px solid rgba(255, 107, 0, 0.2);
    border-radius: var(--r-md);
    animation: fadeIn 0.35s ease forwards;
}

.result-primary {
    font-size: 2.4rem;
    font-weight: 800;
    color: var(--primary);
    line-height: 1.2;
}

.result-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 6px;
    font-weight: 600;
}

.result-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
}

.result-grid-item strong {
    display: block;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--secondary);
}

.result-grid-item small {
    font-size: 0.78rem;
    color: var(--text-muted);
}

/* ── Info / SEO Section ────────────────────────────────────────────────────── */
.tool-info {
    max-width: 820px;
    margin: 0 auto 80px;
    border-top: 1px solid var(--border);
    padding-top: 40px;
}

.tool-info h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--secondary);
}

.tool-info h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin: 28px 0 10px;
    color: var(--secondary);
}

.tool-info p {
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 16px;
}

.tool-info ul {
    padding-left: 20px;
    color: var(--text-muted);
    line-height: 1.8;
}

.tool-info code,
.formula-box {
    display: block;
    font-family: 'Courier New', monospace;
    background: var(--bg-alt);
    padding: 16px 20px;
    border-radius: var(--r-md);
    border-left: 4px solid var(--primary);
    font-size: 0.95rem;
    margin: 16px 0;
    color: var(--secondary);
}

/* ── Range slider (used by some tools) ────────────────────────────────────── */
input[type="range"] {
    -webkit-appearance: none;
    width: 100%;
    height: 6px;
    background: var(--border);
    border-radius: 3px;
    outline: none;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary);
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(255, 107, 0, 0.4);
}

/* ── Responsive ────────────────────────────────────────────────────────────── */
@media (max-width: 640px) {
    .tool-box { padding: 22px; }
    .tool-header h1 { font-size: 1.7rem; }
    .result-grid { grid-template-columns: 1fr; }
    .result-primary { font-size: 2rem; }
}