/* Shared calculator styles for FryConvert variant converter pages.
   Mirrors the inline calculator styles on index.html so all converters look identical. */

.calculator-card {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 30px;
    box-shadow: 0 4px 20px var(--shadow);
    margin-bottom: 30px;
}

.input-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 25px;
}

@media (max-width: 600px) {
    .input-section { grid-template-columns: 1fr; }
}

.input-group { display: flex; flex-direction: column; }

.input-group label {
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text);
    font-size: 0.95rem;
}

.input-wrapper { position: relative; display: flex; align-items: center; }

.input-wrapper input {
    width: 100%;
    padding: 14px 16px;
    padding-right: 60px;
    border: 2px solid var(--border);
    border-radius: 10px;
    font-size: 1.1rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.input-wrapper input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(232, 93, 4, 0.15);
}

.input-unit {
    position: absolute;
    right: 14px;
    color: var(--text-light);
    font-weight: 500;
}

.unit-toggle { display: flex; gap: 8px; margin-top: 10px; }

.unit-btn {
    padding: 8px 16px;
    border: 2px solid var(--border);
    background: var(--card-bg);
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.2s;
}

.unit-btn.active { background: var(--primary); border-color: var(--primary); color: white; }
.unit-btn:hover:not(.active) { border-color: var(--primary); }

.convert-btn {
    width: 100%;
    padding: 16px 32px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 1.2rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.convert-btn:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(232, 93, 4, 0.35); }
.convert-btn:active { transform: translateY(0); }

.results {
    margin-top: 30px;
    padding: 25px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 12px;
    display: none;
}

.results.show { display: block; animation: fadeIn 0.4s ease; }

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.results h3 {
    color: var(--primary);
    margin-bottom: 20px;
    font-size: 1.3rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.result-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; }

@media (max-width: 500px) {
    .result-grid { grid-template-columns: 1fr; }
}

.result-item {
    background: white;
    padding: 20px;
    border-radius: 10px;
    text-align: center;
    border: 2px solid var(--border);
}

.result-item .label { font-size: 0.9rem; color: var(--text-light); margin-bottom: 5px; }
.result-item .value { font-size: 2rem; font-weight: 700; color: var(--primary); }
.result-item .unit { font-size: 1rem; color: var(--text-light); font-weight: 500; }

.tips-box {
    margin-top: 20px;
    padding: 15px 20px;
    background: #fff3cd;
    border-radius: 10px;
    border-left: 4px solid var(--secondary);
}

.tips-box h4 { color: #856404; margin-bottom: 8px; display: flex; align-items: center; gap: 6px; }
.tips-box ul { margin-left: 20px; color: #856404; }
.tips-box li { margin-bottom: 4px; }

.presets-section {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 30px;
    box-shadow: 0 4px 20px var(--shadow);
    margin-bottom: 30px;
}

.presets-section h2 { margin-bottom: 20px; color: var(--text); display: flex; align-items: center; gap: 10px; }

.preset-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 12px;
}

.preset-btn {
    padding: 14px 16px;
    background: var(--bg);
    border: 2px solid var(--border);
    border-radius: 10px;
    cursor: pointer;
    text-align: center;
    transition: all 0.2s;
}

.preset-btn:hover { border-color: var(--primary); background: white; transform: translateY(-2px); }
.preset-btn .food { font-size: 1.5rem; display: block; margin-bottom: 5px; }
.preset-btn .name { font-weight: 600; font-size: 0.9rem; color: var(--text); }

.chart-section {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 30px;
    box-shadow: 0 4px 20px var(--shadow);
    margin-bottom: 30px;
}

.chart-section h2 { margin-bottom: 20px; color: var(--text); display: flex; align-items: center; gap: 10px; }

.info-section {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 30px;
    box-shadow: 0 4px 20px var(--shadow);
    margin-bottom: 30px;
}

.info-section h2 { margin-bottom: 15px; color: var(--text); }
.info-section p { margin-bottom: 15px; color: var(--text-light); }
.info-section h3 { margin-top: 20px; margin-bottom: 10px; color: var(--text); font-size: 1.1rem; }

select {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid var(--border);
    border-radius: 10px;
    font-size: 1rem;
    background: var(--card-bg);
    color: var(--text);
    cursor: pointer;
    transition: border-color 0.2s, box-shadow 0.2s;
}

select:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(232, 93, 4, 0.15); }

.batch-tip {
    margin-top: 15px;
    padding: 12px 16px;
    background: #e8f4fd;
    border-radius: 8px;
    border-left: 4px solid #0288d1;
    color: #01579b;
    font-size: 0.9rem;
}

.dark-mode-toggle {
    position: absolute;
    top: 15px;
    right: 20px;
    background: rgba(255,255,255,0.2);
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    font-size: 1.2rem;
    cursor: pointer;
    transition: background 0.2s;
}

.dark-mode-toggle:hover { background: rgba(255,255,255,0.35); }
header { position: relative; }

body.dark-mode {
    --bg: #1a1a2e;
    --card-bg: #16213e;
    --text: #e0e0e0;
    --text-light: #a0a0a0;
    --border: #4a4a6a;
    --shadow: rgba(0, 0, 0, 0.3);
}

body.dark-mode header { background: linear-gradient(135deg, #b84a00 0%, #8b0000 100%); }
body.dark-mode .tips-box { background: #2a2a1e; border-left-color: #c9a000; }
body.dark-mode .tips-box h4, body.dark-mode .tips-box ul { color: #d4b442; }
body.dark-mode .batch-tip { background: #1a2a3e; border-left-color: #4a9aca; color: #8ac4ea; }
body.dark-mode .results { background: linear-gradient(135deg, #1e2a3a 0%, #16213e 100%); }
body.dark-mode .result-item { background: #1a1a2e; border-color: var(--border); }
body.dark-mode .chart-table th { background: #b84a00; }
body.dark-mode .chart-table tr:hover { background: #1e2a3a; }
body.dark-mode select { background: var(--card-bg); color: var(--text); }

@media print {
    .convert-btn, .preset-grid, .dark-mode-toggle { display: none !important; }
    .results { display: block !important; box-shadow: none; border: 2px solid #000; }
    .chart-section { break-inside: avoid; }
}