/* ============================================================
   Art direction: logística confiable → teal profesional + slate
   Fonts: Sora (display) + Inter (body)
   ============================================================ */
:root, [data-theme="light"] {
  --color-bg:               #f4f6f8;
  --color-surface:          #ffffff;
  --color-surface-2:        #f9fafb;
  --color-surface-offset:   #f0f2f5;
  --color-surface-dynamic:  #e4e8ed;
  --color-divider:          #dde1e7;
  --color-border:           #d1d5dc;
  --color-text:             #1a2130;
  --color-text-muted:       #6b7585;
  --color-text-faint:       #a8b0bb;
  --color-text-inverse:     #f8fafc;
  --color-primary:          #01696f;
  --color-primary-hover:    #0c4e54;
  --color-primary-active:   #0f3638;
  --color-primary-highlight:#d4e8e9;
  --color-success:          #2d7a3a;
  --color-error:            #c0392b;
  --color-error-highlight:  #fde8e6;
  --radius-sm: 0.375rem; --radius-md: 0.5rem;
  --radius-lg: 0.75rem;  --radius-xl: 1rem;
  --radius-2xl: 1.25rem; --radius-full: 9999px;
  --shadow-sm: 0 1px 2px oklch(0.2 0.02 220 / 0.06);
  --shadow-md: 0 4px 16px oklch(0.2 0.02 220 / 0.08), 0 1px 3px 
oklch(0.2 0.02 220 / 0.06);
  --shadow-lg: 0 12px 40px oklch(0.2 0.02 220 / 0.12);
  --shadow-focus: 0 0 0 3px oklch(from var(--color-primary) l c h / 
0.25);
  --space-1:0.25rem; --space-2:0.5rem;
  --space-3:0.75rem;  --space-4:1rem;  
  --space-5:1.25rem; --space-6:1.5rem;
  --space-8:2rem;    --space-10:2.5rem; --space-12:3rem;
  --space-16:4rem;   --space-20:5rem;
  --text-xs:   clamp(0.75rem,  0.7rem  + 0.25vw, 0.875rem);
  --text-sm:   clamp(0.875rem, 0.8rem  + 0.35vw, 1rem);
  --text-base: clamp(1rem,     0.95rem + 0.25vw, 1.125rem);
  --text-lg:   clamp(1.125rem, 1rem    + 0.75vw, 1.5rem);
  --text-xl:   clamp(1.5rem,   1.2rem  + 1.25vw, 2.25rem);
  --text-2xl:  clamp(2rem,     1.2rem  + 2.5vw,  3.5rem);
  --font-display: 'Sora', 'Helvetica Neue', sans-serif;
  --font-body:    'Inter', 'Helvetica Neue', sans-serif;
  --content-default: 960px;
  --transition: 180ms cubic-bezier(0.16, 1, 0.3, 1);
}
[data-theme="dark"] {
  --color-bg:               #0f1318;
  --color-surface:          #161b22;
  --color-surface-2:        #1c222b;
  --color-surface-offset:   #1a2029;
  --color-surface-dynamic:  #252d38;
  --color-divider:          #252d3a;
  --color-border:           #2e3747;
  --color-text:             #d0d8e4;
  --color-text-muted:       #6e7d93;
  --color-text-faint:       #4a5568;
  --color-text-inverse:     #1a2130;
  --color-primary:          #4fa8af;
  --color-primary-hover:    #3d9198;
  --color-primary-active:   #2d7980;
  --color-primary-highlight:#1e3537;
  --color-error:            #e05252;
  --color-error-highlight:  #3b1414;
  --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.25);
  --shadow-md: 0 4px 16px oklch(0 0 0 / 0.35);
  --shadow-lg: 0 12px 40px oklch(0 0 0 / 0.45);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    /* Igual que [data-theme="dark"] — copiar bloque completo arriba 
*/
  }
}
/* ── Skip link 
────────────────── 
*/
.skip-link {
  position: fixed; top: var(--space-2); left: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--color-primary); color: var(--color-text-inverse);
  border-radius: var(--radius-md); font-size: var(--text-sm); 
font-weight: 600;
  text-decoration: none; z-index: 9999;
  transform: translateY(-200%); transition: transform var(--transition);
}
.skip-link:focus { transform: translateY(0); }
/* ── Container 
────────────────── 
*/
.container {
  max-width: var(--content-default);
  margin-inline: auto;
  padding-inline: clamp(var(--space-4), 4vw, var(--space-8));
}
/* ── Header 
───────────────────── 
*/
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-divider);
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(8px);
}
.header-inner {
  display: flex; align-items: center;
  justify-content: space-between;
  padding-block: var(--space-3);
}
.brand {
  display: flex; align-items: center; gap: var(--space-2);
  text-decoration: none; color: var(--color-text);
}
.brand-name {
  font-family: var(--font-display); font-size: var(--text-lg);
  font-weight: 700; letter-spacing: -0.02em;
  transition: color var(--transition);
}
.brand:hover .brand-name { color: var(--color-primary); }
.btn-icon {
  display: flex; align-items: center; justify-content: center;
  min-width: 44px; min-height: 44px; padding: var(--space-2);
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
}
.btn-icon:hover { background: var(--color-surface-offset); color: 
var(--color-text); }
/* ── Hero 
─────────────────────── 
*/
.hero-section {
  padding-block: clamp(var(--space-10), 6vw, var(--space-20));
  background:
    radial-gradient(ellipse 60% 40% at 70% 50%, oklch(from 
var(--color-primary) l c h / 0.06), transparent 70%),
    var(--color-bg);
  border-bottom: 1px solid var(--color-divider);
}
.hero-inner { display: flex; flex-direction: column; align-items: 
flex-start; gap: var(--space-5); }
.hero-badge {
  display: inline-flex; align-items: center; gap: var(--space-2);
  padding: var(--space-1) var(--space-3);
  background: var(--color-primary-highlight); color: 
var(--color-primary);
  border-radius: var(--radius-full); font-size: var(--text-xs);
  font-weight: 600; letter-spacing: 0.03em; text-transform: uppercase;
}
.hero-title {
  font-family: var(--font-display); font-size: var(--text-2xl);
  font-weight: 700; color: var(--color-text);
  letter-spacing: -0.03em; line-height: 1.1;
}
.hero-accent { color: var(--color-primary); }
.hero-desc {
  font-size: var(--text-base); color: var(--color-text-muted);
  max-width: 52ch; line-height: 1.7;
}
/* ── Form section 
─────────────── 
*/
.form-section {
  padding-block: clamp(var(--space-8), 5vw, var(--space-16));
}
.form-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  padding: clamp(var(--space-6), 4vw, var(--space-10));
  box-shadow: var(--shadow-md);
  margin-bottom: var(--space-8);
}
.form-card-header {
  margin-bottom: var(--space-8);
  padding-bottom: var(--space-6);
  border-bottom: 1px solid var(--color-divider);
}
.form-card-title {
  display: flex; align-items: center; gap: var(--space-2);
  font-family: var(--font-display); font-size: var(--text-xl);
  font-weight: 700; color: var(--color-text); margin-bottom: 
var(--space-2);
}
.form-card-desc { font-size: var(--text-sm); color: 
var(--color-text-muted); max-width: none; }
/* ── Fields 
───────────────────── 
*/
.field-group { margin-bottom: var(--space-6); }
.field-label {
  display: block; font-size: var(--text-sm); font-weight: 600;
  color: var(--color-text); margin-bottom: var(--space-2);
}
.field-required { color: var(--color-error); margin-left: 2px; }
.field-hint { font-size: var(--text-xs); color: var(--color-text-faint); 
margin-top: var(--space-1); }
.field-error {
  font-size: var(--text-xs); color: var(--color-error);
  margin-top: var(--space-1); font-weight: 500;
}
.input-wrapper { position: relative; display: flex; align-items: center; 
}
.input-icon {
  position: absolute; left: var(--space-3);
  color: var(--color-text-faint); pointer-events: none;
  display: flex; align-items: center;
}
.input-clear {
  position: absolute; right: var(--space-3);
  display: flex; align-items: center; justify-content: center;
  width: 24px; height: 24px;
  border-radius: var(--radius-full);
  background: var(--color-surface-offset);
  color: var(--color-text-muted);
}
.input-clear:hover { background: var(--color-surface-dynamic); color: 
var(--color-text); }
.field-input {
  width: 100%; padding: var(--space-3) var(--space-4);
  background: var(--color-surface-2);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-lg);
  font-size: var(--text-base); color: var(--color-text); outline: none;
}
.field-input.has-icon { padding-left: calc(var(--space-3) + 16px + 
var(--space-3)); }
.field-input::placeholder { color: var(--color-text-faint); }
.field-input:hover:not(:focus) {
  border-color: var(--color-text-muted); background: 
var(--color-surface);
}
.field-input:focus {
  border-color: var(--color-primary); background: var(--color-surface);
  box-shadow: var(--shadow-focus);
}
.field-group.has-error .field-input {
  border-color: var(--color-error); background: 
var(--color-error-highlight);
}
/* ── Store cards 
──────────────── 
*/
.store-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(130px, 100%), 
1fr));
  gap: var(--space-3);
}
.store-card {
  display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: var(--space-2);
  padding: var(--space-4) var(--space-3);
  background: var(--color-surface-2);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-lg);
  cursor: pointer; text-align: center;
  user-select: none;
  transition: border-color var(--transition), background 
var(--transition),
              box-shadow var(--transition), transform var(--transition);
}
.store-card:hover { background: var(--color-surface); border-color: 
var(--color-text-muted); }
.store-card:active { transform: scale(0.97); }
.store-card:has(input:checked) {
  background: var(--color-primary-highlight);
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px oklch(from var(--color-primary) l c h / 0.15);
}
.store-icon { color: var(--color-text-muted); }
.store-card:has(input:checked) .store-icon { color: 
var(--color-primary); }
.store-name { font-size: var(--text-sm); font-weight: 600; color: 
var(--color-text-muted); line-height: 1.2; }
.store-card:has(input:checked) .store-name { color: 
var(--color-primary); }
/* ── Submit 
───────────────────── 
*/
.btn-submit {
  width: 100%; padding: var(--space-4) var(--space-6);
  background: var(--color-primary); color: var(--color-text-inverse);
  border-radius: var(--radius-lg); font-size: var(--text-base); 
font-weight: 600;
  margin-top: var(--space-4); min-height: 52px;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 2px 8px oklch(from var(--color-primary) l c h / 0.35);
}
.btn-submit:hover:not(:disabled) {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px oklch(from var(--color-primary) l c h / 0.4);
}
.btn-submit:active:not(:disabled) { transform: translateY(0); 
background: var(--color-primary-active); }
.btn-submit:disabled { opacity: 0.65; cursor: not-allowed; }
.btn-submit-inner,
.btn-submit-loading { display: flex; align-items: center; gap: 
var(--space-2); }
@keyframes spin { to { transform: rotate(360deg); } }
.spinner { animation: spin 0.8s linear infinite; flex-shrink: 0; }
/* ── Steps indicator 
──────────── */
.steps-row {
  display: flex; align-items: center; justify-content: center;
  flex-wrap: wrap; row-gap: var(--space-4);
  padding: var(--space-6) var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
}
.step { display: flex; flex-direction: column; align-items: center; gap: 
var(--space-1); min-width: 80px; text-align: center; }
.step-dot {
  width: 36px; height: 36px; border-radius: var(--radius-full);
  border: 2px solid var(--color-border); background: 
var(--color-surface-offset);
  color: var(--color-text-faint);
  display: flex; align-items: center; justify-content: center;
  transition: all var(--transition);
}
.step-active .step-dot {
  background: var(--color-primary); border-color: var(--color-primary); 
color: white;
  box-shadow: 0 0 0 4px oklch(from var(--color-primary) l c h / 0.15);
}
.step-label { font-size: var(--text-xs); font-weight: 500; color: 
var(--color-text-faint); max-width: 80px; line-height: 1.3; }
.step-active .step-label { color: var(--color-primary); font-weight: 
600; }
.step-line {
  flex: 1; height: 2px; min-width: var(--space-4);
  background: var(--color-divider); align-self: flex-start;
  margin-top: calc(18px + 2px); /* centrado con el dot */
}
/* ── Footer 
───────────────────── 
*/
.site-footer { border-top: 1px solid var(--color-divider); 
padding-block: var(--space-6); }
.footer-inner { display: flex; align-items: center; justify-content: 
center; }
.footer-text { font-size: var(--text-xs); color: 
var(--color-text-faint); text-align: center; max-width: none; }
/* ── Responsive 
───────────────── 
*/
@media (max-width: 640px) {
  .store-grid { grid-template-columns: repeat(2, 1fr); }
  .step-line { min-width: var(--space-3); }
  .step-label { font-size: 0.65rem; }
}