/* ============================================================
   Barbet Puppy Weight Calculator – Stylesheet
   ============================================================ */

/* ── Reset & Base ── */
.bwc-wrapper *,
.bwc-wrapper *::before,
.bwc-wrapper *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

.bwc-wrapper {
    --bwc-primary:       #2e7d32;
    --bwc-primary-dark:  #1b5e20;
    --bwc-primary-light: #e8f5e9;
    --bwc-accent:        #f57c00;
    --bwc-accent-light:  #fff3e0;
    --bwc-surface:       #ffffff;
    --bwc-bg:            #f4f6f8;
    --bwc-border:        #dce3e8;
    --bwc-text:          #1a1a2e;
    --bwc-text-muted:    #6b7a8d;
    --bwc-radius:        14px;
    --bwc-shadow:        0 2px 16px rgba(0,0,0,0.07);
    --bwc-shadow-hover:  0 6px 28px rgba(0,0,0,0.12);

    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    font-size: 15px;
    line-height: 1.65;
    color: var(--bwc-text);
    background: var(--bwc-bg);
    padding: 24px 16px 40px;
    max-width: 860px;
    margin: 0 auto;
}

/* ── Hero ── */
.bwc-hero {
    text-align: center;
    padding: 40px 24px 32px;
    background: linear-gradient(135deg, var(--bwc-primary) 0%, #388e3c 100%);
    border-radius: var(--bwc-radius);
    color: #fff;
    margin-bottom: 24px;
}

.bwc-hero-icon {
    font-size: 48px;
    margin-bottom: 10px;
    display: block;
}

.bwc-hero-title {
    font-size: 1.9rem;
    font-weight: 800;
    margin-bottom: 10px;
    line-height: 1.2;
}

.bwc-hero-sub {
    font-size: 0.95rem;
    opacity: 0.88;
    max-width: 520px;
    margin: 0 auto;
}

/* ── Cards ── */
.bwc-card {
    background: var(--bwc-surface);
    border-radius: var(--bwc-radius);
    box-shadow: var(--bwc-shadow);
    padding: 28px;
    margin-bottom: 20px;
    border: 1px solid var(--bwc-border);
    transition: box-shadow 0.2s;
}

.bwc-card:hover {
    box-shadow: var(--bwc-shadow-hover);
}

.bwc-card-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--bwc-primary-dark);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
    border-bottom: 2px solid var(--bwc-primary-light);
    padding-bottom: 12px;
}

.bwc-card-icon {
    font-size: 1.2rem;
}

.bwc-card-subtitle {
    font-size: 1rem;
    font-weight: 600;
    color: var(--bwc-text);
    margin: 16px 0 10px;
}

/* ── Calculator Card ── */
.bwc-calculator-card {
    border-top: 4px solid var(--bwc-primary);
}

.bwc-form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

@media (max-width: 540px) {
    .bwc-form-grid {
        grid-template-columns: 1fr;
    }
}

.bwc-field-full {
    grid-column: 1 / -1;
}

.bwc-field-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.bwc-label {
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--bwc-text);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.bwc-input-row {
    display: flex;
    align-items: stretch;
    gap: 8px;
}

.bwc-input {
    flex: 1;
    padding: 12px 14px;
    border: 2px solid var(--bwc-border);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    color: var(--bwc-text);
    background: #fff;
    transition: border-color 0.2s, box-shadow 0.2s;
    outline: none;
}

.bwc-input:focus {
    border-color: var(--bwc-primary);
    box-shadow: 0 0 0 3px rgba(46, 125, 50, 0.12);
}

.bwc-input::placeholder {
    color: #aab3bf;
}

/* Unit toggle (lbs / kg) */
.bwc-unit-toggle {
    display: flex;
    border-radius: 8px;
    overflow: hidden;
    border: 2px solid var(--bwc-border);
    flex-shrink: 0;
}

.bwc-unit-btn {
    background: #fff;
    border: none;
    padding: 0 14px;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    color: var(--bwc-text-muted);
    transition: background 0.15s, color 0.15s;
}

.bwc-unit-btn.active {
    background: var(--bwc-primary);
    color: #fff;
}

.bwc-unit-label {
    display: flex;
    align-items: center;
    padding: 0 14px;
    background: var(--bwc-bg);
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--bwc-text-muted);
    border: 2px solid var(--bwc-border);
    flex-shrink: 0;
}

.bwc-field-hint {
    font-size: 0.78rem;
    color: var(--bwc-text-muted);
}

/* Gender toggle */
.bwc-gender-toggle {
    display: flex;
    gap: 12px;
}

.bwc-gender-btn {
    flex: 1;
    padding: 13px;
    border: 2px solid var(--bwc-border);
    border-radius: 10px;
    background: #fff;
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 600;
    font-family: inherit;
    color: var(--bwc-text-muted);
    transition: all 0.15s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.bwc-gender-btn:hover {
    border-color: var(--bwc-primary);
    color: var(--bwc-primary);
}

.bwc-gender-btn.active {
    background: var(--bwc-primary-light);
    border-color: var(--bwc-primary);
    color: var(--bwc-primary-dark);
}

.bwc-gender-icon {
    font-size: 1.1rem;
}

/* Error */
.bwc-error {
    background: #fdecea;
    border: 1px solid #f44336;
    border-radius: 8px;
    padding: 10px 14px;
    color: #b71c1c;
    font-size: 0.875rem;
    margin-bottom: 14px;
}

/* Calculate button */
.bwc-btn-calculate {
    width: 100%;
    background: linear-gradient(135deg, var(--bwc-primary) 0%, #388e3c 100%);
    color: #fff;
    border: none;
    border-radius: 10px;
    padding: 16px;
    font-size: 1.05rem;
    font-weight: 700;
    font-family: inherit;
    cursor: pointer;
    transition: transform 0.1s, box-shadow 0.15s;
    letter-spacing: 0.02em;
    box-shadow: 0 4px 14px rgba(46,125,50,0.3);
}

.bwc-btn-calculate:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(46,125,50,0.4);
}

.bwc-btn-calculate:active {
    transform: translateY(0);
}

/* ── Results ── */
.bwc-results {
    animation: bwc-fadein 0.4s ease;
}

@keyframes bwc-fadein {
    from { opacity: 0; transform: translateY(12px); }
    to   { opacity: 1; transform: translateY(0); }
}

.bwc-section-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--bwc-primary-dark);
    margin: 28px 0 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Stat cards row */
.bwc-stat-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
    margin-bottom: 20px;
}

@media (max-width: 580px) {
    .bwc-stat-row {
        grid-template-columns: 1fr;
    }
}

.bwc-stat-card {
    background: var(--bwc-surface);
    border-radius: var(--bwc-radius);
    box-shadow: var(--bwc-shadow);
    border: 1px solid var(--bwc-border);
    padding: 20px 16px;
    text-align: center;
}

.bwc-stat-primary {
    background: linear-gradient(135deg, var(--bwc-primary) 0%, #388e3c 100%);
    color: #fff;
    border-color: transparent;
}

.bwc-stat-label {
    font-size: 0.78rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    opacity: 0.85;
    margin-bottom: 8px;
}

.bwc-stat-primary .bwc-stat-label {
    opacity: 0.85;
}

.bwc-stat-value {
    font-size: 1.55rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 5px;
    color: var(--bwc-primary-dark);
}

.bwc-stat-primary .bwc-stat-value {
    color: #fff;
    font-size: 1.75rem;
}

.bwc-stat-sub {
    font-size: 0.78rem;
    color: var(--bwc-text-muted);
}

.bwc-stat-primary .bwc-stat-sub {
    color: rgba(255,255,255,0.75);
}

/* Range bar */
.bwc-range-card {
    padding: 20px 24px;
}

.bwc-range-bar-wrap {
    margin-top: 12px;
}

.bwc-range-bar-bg {
    position: relative;
    height: 12px;
    background: #e0e7ef;
    border-radius: 999px;
    margin-bottom: 6px;
    overflow: visible;
}

.bwc-range-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, #a5d6a7 0%, var(--bwc-primary) 100%);
    border-radius: 999px;
    transition: width 0.6s ease;
}

.bwc-range-marker {
    position: absolute;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 20px;
    height: 20px;
    background: var(--bwc-accent);
    border: 3px solid #fff;
    border-radius: 50%;
    box-shadow: 0 2px 8px rgba(0,0,0,0.18);
    transition: left 0.6s ease;
}

.bwc-range-marker-label {
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%);
    background: var(--bwc-accent);
    color: #fff;
    font-size: 0.72rem;
    font-weight: 700;
    padding: 3px 7px;
    border-radius: 5px;
    white-space: nowrap;
    pointer-events: none;
}

.bwc-range-labels {
    display: flex;
    justify-content: space-between;
    font-size: 0.78rem;
    color: var(--bwc-text-muted);
    font-weight: 600;
    margin-top: 10px;
}

/* Timeline */
.bwc-timeline {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
    gap: 10px;
    margin-top: 8px;
}

.bwc-timeline-item {
    background: var(--bwc-bg);
    border-radius: 10px;
    padding: 12px 10px;
    text-align: center;
    border: 1px solid var(--bwc-border);
    position: relative;
}

.bwc-timeline-item.bwc-tl-current {
    background: var(--bwc-primary-light);
    border-color: var(--bwc-primary);
}

.bwc-tl-badge {
    font-size: 0.68rem;
    font-weight: 700;
    text-transform: uppercase;
    background: var(--bwc-primary);
    color: #fff;
    border-radius: 4px;
    padding: 2px 6px;
    display: inline-block;
    margin-bottom: 4px;
}

.bwc-tl-age {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--bwc-text);
    margin-bottom: 2px;
}

.bwc-tl-weight {
    font-size: 1rem;
    font-weight: 800;
    color: var(--bwc-primary-dark);
}

.bwc-tl-pct {
    font-size: 0.72rem;
    color: var(--bwc-text-muted);
}

/* Notes */
.bwc-notes-card {
    background: #fffde7;
    border-color: #f9a825;
}

.bwc-notes-list {
    list-style: none;
    padding: 0;
}

.bwc-notes-list li {
    padding: 6px 0 6px 26px;
    position: relative;
    font-size: 0.9rem;
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

.bwc-notes-list li:last-child {
    border-bottom: none;
}

.bwc-notes-list li::before {
    content: '⚠';
    position: absolute;
    left: 0;
    color: var(--bwc-accent);
}

/* ── Breed Profile ── */
.bwc-breed-profile {
    border-top: 4px solid var(--bwc-accent);
}

.bwc-breed-profile p {
    margin-bottom: 12px;
    color: #3a4252;
    font-size: 0.93rem;
}

.bwc-breed-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 16px;
}

.bwc-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    background: var(--bwc-primary-light);
    color: var(--bwc-primary-dark);
    border: 1px solid #c8e6c9;
    padding: 5px 12px;
    border-radius: 999px;
    font-size: 0.82rem;
    font-weight: 600;
}

/* ── Growth Table ── */
.bwc-table-intro {
    font-size: 0.9rem;
    color: #3a4252;
    margin-bottom: 16px;
}

.bwc-table-wrap {
    overflow-x: auto;
    border-radius: 10px;
    border: 1px solid var(--bwc-border);
}

.bwc-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.bwc-table th {
    background: var(--bwc-primary);
    color: #fff;
    padding: 12px 16px;
    text-align: left;
    font-weight: 700;
    white-space: nowrap;
}

.bwc-table td {
    padding: 11px 16px;
    border-bottom: 1px solid var(--bwc-border);
    color: var(--bwc-text);
}

.bwc-table tbody tr:nth-child(even) {
    background: var(--bwc-bg);
}

.bwc-table tbody tr:last-child td {
    border-bottom: none;
}

.bwc-table tbody tr:hover {
    background: var(--bwc-primary-light);
}

.bwc-table-note {
    font-size: 0.83rem;
    color: var(--bwc-text-muted);
    margin-top: 12px;
    font-style: italic;
}

/* ── Milestone list ── */
.bwc-milestone-list {
    display: flex;
    flex-direction: column;
    gap: 0;
    margin: 14px 0;
    padding-left: 14px;
    border-left: 3px solid var(--bwc-primary-light);
}

.bwc-milestone {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    padding: 10px 0;
}

.bwc-milestone-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--bwc-primary);
    flex-shrink: 0;
    margin-top: 5px;
    margin-left: -20px;
}

.bwc-milestone-body {
    font-size: 0.9rem;
    color: #3a4252;
}

.bwc-callout {
    background: var(--bwc-primary-light);
    border-left: 4px solid var(--bwc-primary);
    border-radius: 0 8px 8px 0;
    padding: 12px 16px;
    font-size: 0.9rem;
    color: var(--bwc-primary-dark);
    margin-top: 12px;
}

/* ── Tips grid ── */
.bwc-tips-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-top: 12px;
}

@media (max-width: 620px) {
    .bwc-tips-grid {
        grid-template-columns: 1fr;
    }
}

.bwc-tip-card {
    background: var(--bwc-bg);
    border-radius: 12px;
    padding: 18px;
    border: 1px solid var(--bwc-border);
}

.bwc-tip-icon {
    font-size: 1.8rem;
    margin-bottom: 10px;
}

.bwc-tip-card h4 {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--bwc-primary-dark);
    margin-bottom: 10px;
}

.bwc-tip-card ul {
    list-style: none;
    padding: 0;
}

.bwc-tip-card ul li {
    font-size: 0.85rem;
    color: #3a4252;
    padding: 5px 0 5px 18px;
    position: relative;
    border-bottom: 1px solid rgba(0,0,0,0.04);
}

.bwc-tip-card ul li:last-child {
    border-bottom: none;
}

.bwc-tip-card ul li::before {
    content: '•';
    position: absolute;
    left: 4px;
    color: var(--bwc-primary);
    font-weight: 800;
}

/* ── Disclaimer ── */
.bwc-disclaimer {
    text-align: center;
    font-size: 0.78rem;
    color: var(--bwc-text-muted);
    margin-top: 12px;
    font-style: italic;
    padding: 0 16px;
}