/* ==========================================================
   EYESIGHTS – SELECT LENSES  |  Frontend Modal Styles
   v2.0.0
   ========================================================== */

:root {
  --esl-primary:    #e65c00;
  --esl-primary-dk: #c44d00;
  --esl-primary-lt: #fff1e6;
  --esl-accent:     #f9a825;
  --esl-dark:       #1a1a2e;
  --esl-border:     #e8e8e8;
  --esl-muted:      #718096;
  --esl-success:    #2e7d32;
  --esl-radius:     14px;
  --esl-radius-sm:  8px;
  --esl-shadow:     0 24px 60px rgba(0,0,0,.22);
  --esl-ease:       cubic-bezier(.4,0,.2,1);
}

/* ── Trigger Button ──────────────────────────────────────── */
.esl-select-lenses-wrap {
  margin-top: 18px;
  clear: both;
  width: 100%;
  display: block;
}

#esl-trigger-btn {
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
  background: linear-gradient(135deg, var(--esl-primary), var(--esl-accent));
  color: #fff;
  border: none;
  border-radius: var(--esl-radius);
  padding: 16px 20px;
  cursor: pointer;
  font-family: inherit;
  text-align: left;
  transition: transform .25s var(--esl-ease), box-shadow .25s var(--esl-ease);
  box-shadow: 0 6px 24px rgba(230,92,0,.35);
}

#esl-trigger-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(230,92,0,.45);
}

.esl-btn-icon        { font-size: 28px; line-height: 1; }
.esl-btn-text        { flex: 1; display: flex; flex-direction: column; gap: 2px; }
.esl-btn-text strong { font-size: 16px; font-weight: 700; letter-spacing: .4px; }
.esl-btn-text small  { font-size: 12px; opacity: .85; }
.esl-btn-arrow       { font-size: 26px; font-weight: 300; opacity: .8; }

.esl-trigger-hint {
  margin: 8px 0 0;
  font-size: 12px;
  color: var(--esl-muted);
  line-height: 1.5;
}

/* ── Overlay & Modal ─────────────────────────────────────── */
.esl-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.65);
  z-index: 999999;
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  animation: eslFadeIn .2s ease;
}

@keyframes eslFadeIn { from { opacity: 0; } to { opacity: 1; } }

.esl-modal {
  background: #fff;
  border-radius: 20px;
  width: 100%;
  max-width: 560px;
  max-height: 92vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: var(--esl-shadow);
  animation: eslSlideUp .3s var(--esl-ease);
}

@keyframes eslSlideUp {
  from { transform: translateY(30px); opacity: 0; }
  to   { transform: translateY(0);    opacity: 1; }
}

/* ── Modal Header ────────────────────────────────────────── */
.esl-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 22px 14px;
  border-bottom: 1px solid var(--esl-border);
  background: linear-gradient(135deg, var(--esl-primary), var(--esl-accent));
  color: #fff;
}

.esl-header-left         { flex: 1; }
.esl-progress-bar        { height: 5px; background: rgba(255,255,255,.3); border-radius: 100px; overflow: hidden; margin-bottom: 6px; }
.esl-progress-fill       { height: 100%; background: #fff; border-radius: 100px; transition: width .35s var(--esl-ease); }
.esl-step-label          { font-size: 12px; opacity: .9; font-weight: 500; }

.esl-close-btn {
  background: rgba(255,255,255,.2);
  border: none;
  color: #fff;
  width: 34px; height: 34px;
  border-radius: 50%;
  font-size: 20px;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: background .2s;
}
.esl-close-btn:hover { background: rgba(255,255,255,.35); }

/* ── Modal Body ──────────────────────────────────────────── */
.esl-modal-body {
  flex: 1;
  overflow-y: auto;
  padding: 22px;
  scroll-behavior: smooth;
}
.esl-modal-body::-webkit-scrollbar       { width: 5px; }
.esl-modal-body::-webkit-scrollbar-track { background: transparent; }
.esl-modal-body::-webkit-scrollbar-thumb { background: var(--esl-border); border-radius: 10px; }

/* ── Step Titles ─────────────────────────────────────────── */
.esl-step-title     { font-size: 20px; font-weight: 700; color: var(--esl-dark); margin: 0 0 4px; }
.esl-step-subtitle  { font-size: 13px; color: var(--esl-muted); margin: 0 0 20px; }
.esl-sub-title      { font-size: 14px; font-weight: 700; color: var(--esl-dark); margin: 20px 0 10px; }
.esl-sub-title:first-of-type { margin-top: 0; }

/* ── Option Cards ────────────────────────────────────────── */
.esl-card-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 6px;
}

.esl-option-card {
  border: 2px solid var(--esl-border);
  border-radius: var(--esl-radius);
  padding: 16px 14px;
  cursor: pointer;
  transition: all .22s var(--esl-ease);
  display: flex; flex-direction: column; align-items: flex-start; gap: 6px;
  background: #fff;
  position: relative;
}
.esl-option-card:hover {
  border-color: var(--esl-primary);
  background: var(--esl-primary-lt);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(230,92,0,.12);
}
.esl-option-card.esl-selected {
  border-color: var(--esl-primary);
  background: var(--esl-primary-lt);
  box-shadow: 0 0 0 3px rgba(230,92,0,.15);
}
.esl-option-card.esl-selected::after {
  content: '✓';
  position: absolute; top: 8px; right: 10px;
  color: var(--esl-primary); font-weight: 700; font-size: 14px;
}
.esl-card-icon  { font-size: 26px; }
.esl-card-label { font-size: 14px; font-weight: 700; color: var(--esl-dark); }
.esl-card-desc  { font-size: 11px; color: var(--esl-muted); line-height: 1.4; }
.esl-card-price { font-size: 12px; font-weight: 700; color: var(--esl-primary); margin-top: 4px; }

/* ── Prescription Accordion ──────────────────────────────── */
.esl-accordion          { border: 1px solid var(--esl-border); border-radius: var(--esl-radius); overflow: hidden; margin-bottom: 12px; }
.esl-accordion-header   { display: flex; align-items: center; justify-content: space-between; padding: 14px 18px; cursor: pointer; background: #fff; transition: background .2s; user-select: none; }
.esl-accordion-header:hover,
.esl-accordion-header.esl-open { background: var(--esl-primary-lt); }
.esl-accordion-header.esl-open .esl-accordion-icon { transform: rotate(180deg); }
.esl-accordion-title    { display: flex; align-items: center; gap: 10px; font-size: 14px; font-weight: 600; color: var(--esl-dark); }
.esl-accordion-title span:first-child { font-size: 18px; }
.esl-accordion-icon     { transition: transform .25s var(--esl-ease); font-size: 16px; color: var(--esl-muted); }
.esl-accordion-content  { display: none; padding: 16px 18px; border-top: 1px solid var(--esl-border); background: #fafafa; }
.esl-accordion-content.esl-open { display: block; }

/* ── Manual Rx Table ─────────────────────────────────────── */
.esl-rx-table           { width: 100%; border-collapse: collapse; font-size: 13px; margin-bottom: 14px; }
.esl-rx-table th        { background: var(--esl-dark); color: #fff; padding: 8px 10px; text-align: center; font-size: 12px; }
.esl-rx-table td        { padding: 6px 8px; border: 1px solid var(--esl-border); text-align: center; background: #fff; }
.esl-rx-select,
.esl-rx-input           { width: 100%; padding: 5px 6px; border: 1px solid #ddd; border-radius: 6px; font-size: 12px; background: #fff; font-family: inherit; }
.esl-rx-select:focus,
.esl-rx-input:focus     { outline: none; border-color: var(--esl-primary); }
.esl-pd-row             { display: flex; align-items: center; gap: 10px; margin-top: 10px; }
.esl-pd-row label       { font-size: 13px; font-weight: 600; color: var(--esl-dark); white-space: nowrap; }

/* ── Rx Textarea ─────────────────────────────────────────── */
.esl-rx-textarea {
  width: 100%; min-height: 120px; padding: 12px;
  border: 1px solid var(--esl-border); border-radius: var(--esl-radius-sm);
  font-size: 13px; font-family: inherit; resize: vertical; box-sizing: border-box;
  transition: border-color .2s;
}
.esl-rx-textarea:focus { outline: none; border-color: var(--esl-primary); box-shadow: 0 0 0 3px rgba(230,92,0,.1); }

/* ── Upload Zone ─────────────────────────────────────────── */
.esl-upload-zone {
  border: 2px dashed var(--esl-border); border-radius: var(--esl-radius);
  padding: 30px 20px; text-align: center; cursor: pointer;
  transition: all .22s var(--esl-ease); background: #fafafa; position: relative;
}
.esl-upload-zone:hover,
.esl-upload-zone.esl-drag-over { border-color: var(--esl-primary); background: var(--esl-primary-lt); }
.esl-upload-zone input[type="file"] { position: absolute; inset: 0; opacity: 0; cursor: pointer; width: 100%; height: 100%; }
.esl-upload-icon  { font-size: 36px; display: block; margin-bottom: 8px; }
.esl-upload-text  { font-size: 14px; font-weight: 600; color: var(--esl-dark); margin: 0; }
.esl-upload-hint  { font-size: 11px; color: var(--esl-muted); margin: 4px 0 0; }
.esl-upload-preview { margin-top: 10px; font-size: 13px; color: var(--esl-success); font-weight: 600; }

/* ── Tint Strength ───────────────────────────────────────── */
.esl-strength-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 6px;
}
.esl-strength-btn {
  border: 2px solid var(--esl-border); border-radius: var(--esl-radius-sm);
  padding: 12px 8px; text-align: center; cursor: pointer;
  font-size: 13px; font-weight: 600; color: var(--esl-dark);
  transition: all .22s var(--esl-ease); background: #fff;
}
.esl-strength-btn:hover      { border-color: var(--esl-primary); color: var(--esl-primary); }
.esl-strength-btn.esl-selected { border-color: var(--esl-primary); background: var(--esl-primary-lt); color: var(--esl-primary); }
.esl-strength-preview { height: 24px; border-radius: 4px; margin-bottom: 6px; background: #1a1a1a; }

/* ── Colour Picker ───────────────────────────────────────── */
.esl-color-grid   { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 6px; }
.esl-color-swatch { display: flex; flex-direction: column; align-items: center; gap: 5px; cursor: pointer; }
.esl-color-circle {
  width: 40px; height: 40px; border-radius: 50%;
  border: 3px solid transparent;
  transition: all .22s var(--esl-ease);
  box-shadow: 0 2px 8px rgba(0,0,0,.15);
}
.esl-color-swatch:hover .esl-color-circle        { transform: scale(1.1); border-color: var(--esl-primary); }
.esl-color-swatch.esl-selected .esl-color-circle { border-color: var(--esl-primary); box-shadow: 0 0 0 3px rgba(230,92,0,.25); transform: scale(1.15); }
.esl-color-name   { font-size: 11px; color: var(--esl-muted); font-weight: 500; }

/* ── Lens Index ──────────────────────────────────────────── */
.esl-index-grid { display: flex; flex-direction: column; gap: 10px; }
.esl-index-card {
  display: flex; align-items: center; justify-content: space-between;
  border: 2px solid var(--esl-border); border-radius: var(--esl-radius-sm);
  padding: 13px 16px; cursor: pointer; transition: all .22s var(--esl-ease); background: #fff;
}
.esl-index-card:hover        { border-color: var(--esl-primary); background: var(--esl-primary-lt); }
.esl-index-card.esl-selected { border-color: var(--esl-primary); background: var(--esl-primary-lt); }
.esl-index-info strong { display: block; font-size: 14px; color: var(--esl-dark); }
.esl-index-info small  { font-size: 12px; color: var(--esl-muted); }
.esl-index-price { font-size: 13px; font-weight: 700; color: var(--esl-primary); }
.esl-index-check { color: var(--esl-primary); font-weight: 700; font-size: 16px; display: none; }
.esl-index-card.esl-selected .esl-index-check { display: block; }

/* ── Summary ─────────────────────────────────────────────── */
.esl-summary-card {
  background: linear-gradient(135deg, var(--esl-primary), var(--esl-accent));
  border-radius: var(--esl-radius); padding: 20px; color: #fff; margin-bottom: 14px;
}
.esl-summary-card h3 { margin: 0 0 14px; font-size: 16px; font-weight: 700; }
.esl-summary-row {
  display: flex; justify-content: space-between; align-items: center;
  padding: 7px 0; border-bottom: 1px solid rgba(255,255,255,.2); font-size: 13px;
}
.esl-summary-row:last-child { border-bottom: none; }
.esl-summary-row span:first-child { opacity: .85; }
.esl-summary-row.esl-summary-total {
  font-weight: 700; font-size: 15px;
  padding-top: 12px; margin-top: 4px;
  border-top: 1px solid rgba(255,255,255,.3);
  border-bottom: none;
}

.esl-addon-note {
  background: #e8f5e9; border-left: 3px solid var(--esl-success);
  padding: 10px 14px; border-radius: 6px;
  font-size: 12px; color: #2e7d32; margin: 0;
}

/* ── Modal Footer ────────────────────────────────────────── */
.esl-modal-footer  { border-top: 1px solid var(--esl-border); padding: 16px 22px; background: #fff; }
.esl-subtotal-bar  { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; font-size: 14px; color: var(--esl-muted); }
.esl-subtotal-bar strong { font-size: 18px; color: var(--esl-dark); }
.esl-footer-btns   { display: flex; gap: 10px; }

.esl-back-btn,
.esl-next-btn {
  padding: 13px 20px; border: none; border-radius: 10px;
  font-size: 15px; font-weight: 700; cursor: pointer;
  transition: all .22s var(--esl-ease); font-family: inherit;
}
.esl-back-btn         { background: #eee; color: var(--esl-dark); flex: 0 0 auto; }
.esl-back-btn:hover   { background: #d0d0d0; }
.esl-next-btn         { flex: 1; background: linear-gradient(135deg, var(--esl-primary), var(--esl-accent)); color: #fff; box-shadow: 0 4px 16px rgba(230,92,0,.3); }
.esl-next-btn:hover   { transform: translateY(-1px); box-shadow: 0 8px 24px rgba(230,92,0,.4); }
.esl-next-btn:disabled { opacity: .5; cursor: not-allowed; transform: none; }
.esl-next-btn.esl-confirm       { background: linear-gradient(135deg, #1b5e20, #2e7d32); box-shadow: 0 4px 16px rgba(46,125,50,.3); }
.esl-next-btn.esl-confirm:hover { box-shadow: 0 8px 24px rgba(46,125,50,.4); }

.esl-next-btn.esl-loading { pointer-events: none; }
.esl-next-btn.esl-loading::after {
  content: '';
  display: inline-block; width: 16px; height: 16px;
  border: 2px solid rgba(255,255,255,.4); border-top-color: #fff;
  border-radius: 50%; animation: eslSpin .7s linear infinite;
  margin-left: 8px; vertical-align: middle;
}
@keyframes eslSpin { to { transform: rotate(360deg); } }

/* ── Toast ───────────────────────────────────────────────── */
.esl-toast {
  position: fixed; bottom: 30px; left: 50%;
  transform: translateX(-50%) translateY(80px);
  background: var(--esl-dark); color: #fff;
  padding: 14px 24px; border-radius: 100px;
  font-size: 14px; font-weight: 600; z-index: 9999999;
  transition: transform .35s var(--esl-ease), opacity .35s;
  opacity: 0; white-space: nowrap;
  box-shadow: 0 8px 30px rgba(0,0,0,.25);
}
.esl-toast.esl-toast-success { background: linear-gradient(135deg, #1b5e20, #2e7d32); }
.esl-toast.esl-toast-error   { background: linear-gradient(135deg, #b71c1c, #c62828); }
.esl-toast.esl-toast-show    { transform: translateX(-50%) translateY(0); opacity: 1; }

/* ── Validation Error ────────────────────────────────────── */
.esl-error-msg {
  background: #fce4ec; color: #c62828;
  border: 1px solid #ef9a9a; border-radius: var(--esl-radius-sm);
  padding: 10px 14px; font-size: 13px; margin-top: 10px;
  display: none; animation: eslFadeIn .2s ease;
}
.esl-error-msg.esl-show { display: block; }

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 480px) {
  .esl-overlay { align-items: flex-end; padding: 0; }
  .esl-modal   { max-height: 96vh; border-radius: 16px 16px 0 0; align-self: flex-end; }
  .esl-card-grid { grid-template-columns: 1fr; }
}