/* ===== eTail Plus Calculator ===== */
:root {
    --etc-primary: #d35400;
    --etc-primary-dark: #b94700;
    --etc-secondary: #2980b9;
    --etc-bg: #f8f9fa;
    --etc-card: #ffffff;
    --etc-border: #e2e6ea;
    --etc-text: #2d3436;
    --etc-text-light: #636e72;
    --etc-success: #27ae60;
    --etc-radius: 10px;
    --etc-shadow: 0 2px 8px rgba(0,0,0,0.06);
    --etc-shadow-lg: 0 8px 30px rgba(0,0,0,0.10);
}

#etc-calculator { max-width: 880px; margin: 0 auto; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; color: var(--etc-text); }
#etc-calculator *, #etc-calculator *::before, #etc-calculator *::after { box-sizing: border-box; }

.etc-section { background: var(--etc-card); border: 1px solid var(--etc-border); border-radius: var(--etc-radius); padding: 24px 28px; margin-bottom: 16px; box-shadow: var(--etc-shadow); }
.etc-section-header { text-align: center; background: linear-gradient(135deg, var(--etc-primary), #e67e22); color: #fff; border: none; }
.etc-main-title { font-size: 28px; margin: 0 0 6px; font-weight: 700; color: #fff; }
.etc-subtitle { margin: 0; opacity: .9; font-size: 15px; color: #fff; }
.etc-section-title { font-size: 18px; margin: 0 0 16px; font-weight: 600; color: var(--etc-primary); }
.etc-group-title { font-size: 14px; text-transform: uppercase; letter-spacing: .5px; color: var(--etc-text-light); margin: 0 0 12px; padding-bottom: 8px; border-bottom: 1px solid var(--etc-border); }
.etc-hint { font-size: 13px; color: var(--etc-text-light); margin: -8px 0 16px; }

/* Grid */
.etc-grid { display: grid; gap: 16px; }
.etc-grid-2 { grid-template-columns: 1fr 1fr; }
.etc-grid-3 { grid-template-columns: 1fr 1fr 1fr; }
@media (max-width: 680px) { .etc-grid-2, .etc-grid-3 { grid-template-columns: 1fr; } }

/* Fields */
.etc-field label { display: block; font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: .4px; color: var(--etc-text-light); margin-bottom: 6px; }
.etc-field input, .etc-field select { width: 100%; padding: 10px 14px; border: 1px solid var(--etc-border); border-radius: 8px; font-size: 15px; transition: border-color .2s, box-shadow .2s; background: #fff; }
.etc-field input:focus, .etc-field select:focus { outline: none; border-color: var(--etc-primary); box-shadow: 0 0 0 3px rgba(211,84,0,.12); }

/* Package cards */
.etc-package-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 16px; }
.etc-package-card { display: flex; gap: 14px; padding: 20px; border: 2px solid var(--etc-border); border-radius: var(--etc-radius); cursor: pointer; transition: border-color .2s, box-shadow .2s, transform .15s; background: var(--etc-bg); }
.etc-package-card:hover { border-color: #ddd; transform: translateY(-1px); box-shadow: var(--etc-shadow); }
.etc-package-card.active { border-color: var(--etc-primary); background: #fff4ed; box-shadow: 0 0 0 3px rgba(211,84,0,.12); }
.etc-package-radio { padding-top: 2px; }
.etc-package-radio input[type="radio"] { width: 20px; height: 20px; accent-color: var(--etc-primary); cursor: pointer; }
.etc-package-info h4 { margin: 0 0 4px; font-size: 18px; color: var(--etc-text); }
.etc-package-price { font-size: 24px; font-weight: 700; color: var(--etc-primary); margin-bottom: 8px; }
.etc-package-info p { margin: 0; font-size: 13px; color: var(--etc-text-light); line-height: 1.5; }

/* Radio pills */
.etc-radio-pills { display: flex; flex-wrap: wrap; gap: 10px; }
.etc-pill { display: inline-flex; cursor: pointer; }
.etc-pill input { display: none; }
.etc-pill span { padding: 10px 20px; border: 1px solid var(--etc-border); border-radius: 50px; font-size: 14px; transition: all .2s; background: var(--etc-bg); color: var(--etc-text); user-select: none; }
.etc-pill span small { color: var(--etc-text-light); }
.etc-pill input:checked + span { background: var(--etc-primary); color: #fff; border-color: var(--etc-primary); box-shadow: 0 2px 8px rgba(211,84,0,.25); }
.etc-pill input:checked + span small { color: rgba(255,255,255,.85); }
.etc-pill:hover span { border-color: var(--etc-primary); }

/* Toggle rows */
.etc-toggle-row { display: flex; align-items: center; gap: 12px; padding: 10px 14px; border-radius: 8px; transition: background .15s; cursor: pointer; margin-bottom: 4px; }
.etc-toggle-row:hover { background: var(--etc-bg); }
.etc-toggle-row.is-active { background: #fff4ed; }

/* Toggle switch */
.etc-toggle { position: relative; width: 44px; height: 24px; flex-shrink: 0; }
.etc-toggle input { opacity: 0; width: 0; height: 0; }
.etc-toggle-slider { position: absolute; inset: 0; background: #ccc; border-radius: 24px; transition: background .2s; cursor: pointer; }
.etc-toggle-slider::before { content: ''; position: absolute; left: 3px; top: 3px; width: 18px; height: 18px; background: #fff; border-radius: 50%; transition: transform .2s; box-shadow: 0 1px 3px rgba(0,0,0,.2); }
.etc-toggle input:checked + .etc-toggle-slider { background: var(--etc-primary); }
.etc-toggle input:checked + .etc-toggle-slider::before { transform: translateX(20px); }

.etc-toggle-label { flex: 1; }
.etc-toggle-label strong { display: block; font-size: 14px; font-weight: 500; }
.etc-toggle-label small { font-size: 12px; color: var(--etc-text-light); }

.etc-tooltip { width: 20px; height: 20px; display: inline-flex; align-items: center; justify-content: center; border-radius: 50%; background: var(--etc-border); font-size: 12px; color: var(--etc-text-light); cursor: help; flex-shrink: 0; }
.etc-tooltip:hover { background: var(--etc-primary); color: #fff; }

/* Conditional show/hide */
.etc-conditional { display: none; }
.etc-conditional.visible { display: block; }

/* Summary */
.etc-summary-section { position: sticky; bottom: 16px; z-index: 10; background: var(--etc-card); border: 2px solid var(--etc-primary); box-shadow: var(--etc-shadow-lg); }
.etc-summary-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
@media (max-width: 600px) { .etc-summary-grid { grid-template-columns: 1fr; } }
.etc-summary-card { padding: 16px 20px; border-radius: 8px; text-align: center; }
.etc-summary-onceoff { background: linear-gradient(135deg, #fef5ec, #fff0e0); }
.etc-summary-monthly { background: linear-gradient(135deg, #ebf5fb, #d6eaf8); }
.etc-summary-label { display: block; font-size: 12px; text-transform: uppercase; letter-spacing: .5px; font-weight: 600; color: var(--etc-text-light); margin-bottom: 6px; }
.etc-summary-value { display: block; font-size: 32px; font-weight: 800; }
.etc-summary-onceoff .etc-summary-value { color: var(--etc-primary); }
.etc-summary-monthly .etc-summary-value { color: var(--etc-secondary); }

/* Breakdown lists */
.etc-breakdown { list-style: none; padding: 0; margin: 10px 0 0; font-size: 12px; text-align: left; color: var(--etc-text-light); max-height: 0; overflow: hidden; transition: max-height .3s; }
.etc-summary-card:hover .etc-breakdown,
.etc-summary-card.show-breakdown .etc-breakdown { max-height: 400px; }
.etc-breakdown li { display: flex; justify-content: space-between; padding: 3px 0; border-bottom: 1px dotted var(--etc-border); }
.etc-breakdown li:last-child { border-bottom: none; }
.etc-breakdown li span:last-child { font-weight: 600; color: var(--etc-text); }

/* Action */
.etc-action-section { text-align: center; }
.etc-btn-primary { display: inline-block; padding: 14px 48px; font-size: 17px; font-weight: 600; color: #fff; background: var(--etc-primary); border: none; border-radius: 50px; cursor: pointer; transition: background .2s, transform .15s, box-shadow .2s; box-shadow: 0 4px 14px rgba(211,84,0,.3); }
.etc-btn-primary:hover { background: var(--etc-primary-dark); transform: translateY(-1px); box-shadow: 0 6px 20px rgba(211,84,0,.35); }
.etc-btn-primary:active { transform: translateY(0); }
.etc-btn-primary:disabled { opacity: .6; cursor: not-allowed; transform: none; }
.etc-action-note { font-size: 13px; color: var(--etc-text-light); margin-top: 10px; }
#etc-enquiry-msg { margin-top: 12px; font-size: 14px; }
#etc-enquiry-msg.success { color: var(--etc-success); font-weight: 600; }
#etc-enquiry-msg.error { color: #e74c3c; font-weight: 600; }

/* Animations */
@keyframes etc-fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
.etc-conditional.visible { animation: etc-fadeIn .3s ease; }