/**
 * Gear Ratio Solver - Custom Styles
 */

/* ================== LAYOUT ================== */
.predictor-container {
    padding: var(--spacing-lg) var(--spacing-md);
    max-width: 1000px;
}

.tool-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: var(--spacing-lg);
    align-items: start;
}

@media (max-width: 850px) {
    .tool-grid {
        grid-template-columns: 1fr;
    }
}

/* ================== INPUTS ================== */
.input-section {
    background: white;
    padding: var(--spacing-md);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--bpc-border-soft);
}

.input-grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.input-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--bpc-text-muted);
    margin-bottom: 8px;
    letter-spacing: 0.5px;
}

.input-group input,
.input-group select {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--bpc-border-soft);
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    transition: all 0.2s ease;
    background: var(--bpc-surface);
}

.input-group input:focus,
.input-group select:focus {
    border-color: var(--bpc-secondary);
    background: white;
    outline: none;
    box-shadow: 0 0 0 4px rgba(21, 94, 117, 0.1);
}

/* Range Slider Customization */
.range-container {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    background: var(--bpc-water);
    padding: 12px 16px;
    border-radius: 12px;
}

.range-container input[type="range"] {
    flex: 1;
    cursor: pointer;
}

.range-value {
    min-width: 50px;
    font-weight: 800;
    color: var(--bpc-secondary);
    text-align: right;
}

/* Advanced Panel */
.advanced-toggle {
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--bpc-border-soft);
}

.text-btn {
    background: none;
    border: none;
    color: var(--bpc-text-muted);
    font-size: 0.75rem;
    font-weight: 800;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: color 0.2s;
}

.text-btn:hover {
    color: var(--bpc-secondary);
}

.advanced-panel {
    background: var(--bpc-surface);
    padding: var(--spacing-md);
    border-radius: 12px;
    margin-top: 12px;
    border: 1px dashed var(--bpc-border-soft);
}

.hidden {
    display: none;
}

/* ================== RESULTS ================== */
.results-section {
    position: sticky;
    top: 100px;
}

.results-box {
    background: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow-hover);
    overflow: hidden;
    border: 1px solid var(--bpc-border-soft);
}

.results-header {
    background: var(--bpc-secondary);
    color: white;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.results-header h2 {
    margin: 0;
    font-size: 1.2rem;
    font-weight: 800;
}

.algorithm-badge {
    font-size: 0.65rem;
    font-weight: 900;
    background: rgba(255, 255, 255, 0.2);
    padding: 4px 8px;
    border-radius: 4px;
}

/* Verdict Cards */
.verdict-card {
    padding: 24px;
    text-align: center;
    transition: all 0.3s ease;
}

.verdict-card.safe {
    background: #f0fdf4;
    border-bottom: 4px solid #16a34a;
    color: #166534;
}

.verdict-card.warning {
    background: #fffbeb;
    border-bottom: 4px solid #d97706;
    color: #92400e;
}

.verdict-card.danger {
    background: #fef2f2;
    border-bottom: 4px solid #dc2626;
    color: #991b1b;
}

.main-result {
    margin-bottom: 20px;
}

.res-watts {
    font-size: 3rem;
    font-weight: 900;
    display: block;
    line-height: 1;
}

.res-pct {
    font-size: 1.2rem;
    font-weight: 600;
    opacity: 0.8;
}

.res-verdict-label {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 99px;
    font-size: 0.7rem;
    font-weight: 900;
    letter-spacing: 1px;
    margin-bottom: 12px;
}

.safe .res-verdict-label {
    background: #dcfce7;
}

.warning .res-verdict-label {
    background: #fef3c7;
}

.danger .res-verdict-label {
    background: #fee2e2;
}

.res-advice {
    font-size: 0.9rem;
    font-style: italic;
}

/* Torque indicators */
.torque-warning {
    color: #dc2626;
    font-weight: 800;
}

.torque-ok {
    color: var(--bpc-text-muted);
}

/* Recommendation Box */
.reco-container {
    padding: 24px;
    border-top: 1px solid var(--bpc-border-soft);
}

.reco-container h3 {
    font-size: 0.85rem;
    font-weight: 800;
    margin-bottom: 16px;
    color: var(--bpc-text);
}

.reco-safe,
.reco-warning,
.reco-danger {
    padding: 16px;
    border-radius: 12px;
    border-left: 4px solid transparent;
}

.reco-safe {
    background: var(--bpc-water);
    border-left-color: var(--bpc-secondary);
}

.reco-warning {
    background: #fffbeb;
    border-left-color: #d97706;
}

.reco-danger {
    background: #fef2f2;
    border-left-color: #dc2626;
}

.reco-safe p,
.reco-warning p,
.reco-danger p {
    font-size: 0.95rem;
    margin: 0;
    font-weight: 600;
}

.reco-safe .sub,
.reco-warning .sub,
.reco-danger .sub {
    font-size: 0.85rem;
    opacity: 0.8;
    margin-top: 4px;
    font-weight: 400;
}

.reco-safe .sub.success {
    color: #16a34a;
    font-weight: 600;
}

.reco-safe .sub.warning {
    color: #d97706;
    font-weight: 600;
}

.reco-warning .sub.crossover {
    font-style: italic;
    color: #92400e;
}

.intensity {
    font-size: 0.75rem;
    margin-top: 8px !important;
    font-weight: 800;
    text-transform: uppercase;
    opacity: 0.7;
}

/* Alt options in danger/warning */
.alt-options {
    margin: 12px 0;
    padding: 12px;
    background: rgba(255, 255, 255, 0.5);
    border-radius: 8px;
    font-size: 0.85rem;
}

.alt-options p {
    margin-bottom: 4px !important;
    font-weight: 400 !important;
}

/* Table Comparison */
.comparison-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
}

.comparison-table th {
    text-align: left;
    padding: 12px;
    background: var(--bpc-surface);
    color: var(--bpc-text-muted);
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.7rem;
}

.comparison-table td {
    padding: 12px;
    border-bottom: 1px solid var(--bpc-border-soft);
}

.status-dot {
    display: inline-block;
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.status-dot.safe {
    background: #16a34a;
}

.status-dot.warning {
    background: #d97706;
}

.status-dot.danger {
    background: #dc2626;
}

/* WhatsApp Floating Button */
.floating-actions {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    width: 90%;
    max-width: 500px;
    z-index: 1000;
}

.copy-btn {
    width: 100%;
    padding: 18px;
    background: #0f172a;
    color: white;
    border: none;
    border-radius: 16px;
    font-weight: 800;
    font-size: 1rem;
    cursor: pointer;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

.copy-btn:hover {
    background: black;
    transform: translateY(-2px);
}

.copy-btn.success {
    background: #16a34a;
}

/* Placeholder */
.results-placeholder {
    padding: 60px 40px;
    text-align: center;
    color: var(--bpc-text-muted);
}

.placeholder-icon {
    font-size: 3rem;
    margin-bottom: 16px;
    display: block;
    filter: grayscale(1);
    opacity: 0.5;
}

/* Header adjustments */
.hero {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    padding: 60px 0;
    text-align: center;
    color: white;
}

.hero h1 {
    font-size: clamp(1.5rem, 5vw, 2.5rem);
    margin-bottom: 10px;
}

.hero p {
    opacity: 0.8;
    font-size: 1.1rem;
}

.text-right {
    text-align: right;
}