/* Canvas Course Exporter — Hoja de estilos */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --color-primary:   #185FA5;
  --color-primary-h: #1050a0;
  --color-bg:        #f5f5f2;
  --color-surface:   #ffffff;
  --color-border:    #e2e0d8;
  --color-border-md: #ccc9be;
  --color-text:      #1a1a18;
  --color-muted:     #6b6860;
  --color-hint:      #9b9890;
  --color-info:      #185FA5;
  --color-info-bg:   #E6F1FB;
  --color-success:   #3B6D11;
  --color-success-bg:#EAF3DE;
  --color-warning:   #854F0B;
  --color-warning-bg:#FAEEDA;
  --color-danger:    #A32D2D;
  --color-danger-bg: #FCEBEB;
  --radius-sm:  6px;
  --radius-md:  10px;
  --radius-lg:  14px;
  --font-sans:  'Segoe UI', system-ui, sans-serif;
  --font-mono:  'Cascadia Code', 'Fira Code', 'Consolas', monospace;
  --shadow-sm:  0 1px 3px rgba(0,0,0,.06);
  --shadow-md:  0 4px 12px rgba(0,0,0,.08);
}

body {
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ---- Layout ---- */
.container { max-width: 1060px; margin: 0 auto; padding: 0 1.5rem; }

.header {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: .75rem 0;
  position: sticky; top: 0; z-index: 10;
}
.header__inner { display: flex; align-items: center; justify-content: space-between; }
.header__brand { display: flex; align-items: center; gap: 10px; }
.header__title { font-size: 15px; font-weight: 600; letter-spacing: -.01em; }
.header__version { font-size: 11px; color: var(--color-hint); background: var(--color-bg); padding: 1px 6px; border-radius: 999px; border: 1px solid var(--color-border); }
.header__meta { display: flex; align-items: center; gap: 10px; font-size: 13px; }

.main { flex: 1; padding: 2rem 0; }

.footer {
  border-top: 1px solid var(--color-border);
  padding: .875rem 0;
  font-size: 12px;
  color: var(--color-hint);
}
.footer__inner { display: flex; justify-content: space-between; }

/* ---- Page header ---- */
.page-header { margin-bottom: 1.75rem; }
.page-title { font-size: 22px; font-weight: 600; letter-spacing: -.02em; margin-bottom: 4px; }
.page-sub { color: var(--color-muted); font-size: 14px; }

/* ---- Breadcrumb ---- */
.breadcrumb { font-size: 13px; color: var(--color-hint); margin-bottom: 1.5rem; }
.breadcrumb a { color: var(--color-info); text-decoration: none; }
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb span { margin: 0 6px; }

/* ---- Cards ---- */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  margin-bottom: 1rem;
  box-shadow: var(--shadow-sm);
}
.card__title { font-size: 15px; font-weight: 600; margin-bottom: 1.25rem; }
.card__subtitle { font-size: 13px; font-weight: 600; margin-bottom: .75rem; color: var(--color-muted); text-transform: uppercase; letter-spacing: .04em; }

/* ---- Forms ---- */
.field { margin-bottom: 1.25rem; }
.field label { display: block; font-size: 13px; font-weight: 600; color: var(--color-text); margin-bottom: 5px; }
.field__hint { display: block; font-size: 12px; color: var(--color-hint); margin-top: 4px; }
.field-row { display: flex; gap: 1rem; }

input[type="text"],
input[type="url"],
input[type="password"],
input[type="email"],
select,
textarea {
  width: 100%;
  padding: 8px 12px;
  font-size: 14px;
  font-family: inherit;
  border: 1px solid var(--color-border-md);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  color: var(--color-text);
  transition: border-color .15s, box-shadow .15s;
  outline: none;
}
input:focus, select:focus, textarea:focus {
  border-color: var(--color-info);
  box-shadow: 0 0 0 3px rgba(24,95,165,.12);
}

.input--inline { width: 100%; padding: 5px 8px; font-size: 13px; border-radius: var(--radius-sm); }
.input--mono { font-family: var(--font-mono); font-size: 12px; }
.select--sm { font-size: 12px; padding: 4px 8px; }

/* ---- Buttons ---- */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 18px;
  font-size: 14px; font-family: inherit; font-weight: 500;
  border-radius: var(--radius-sm);
  cursor: pointer; border: 1px solid transparent;
  transition: background .15s, border-color .15s, transform .1s;
  text-decoration: none;
}
.btn:active { transform: scale(.98); }
.btn--primary { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }
.btn--primary:hover { background: var(--color-primary-h); }
.btn--ghost { background: transparent; border-color: var(--color-border-md); color: var(--color-text); }
.btn--ghost:hover { background: var(--color-bg); }
.btn--sm { padding: 4px 12px; font-size: 12px; }
.btn:disabled { opacity: .45; cursor: not-allowed; }

/* ---- Alerts ---- */
.alert {
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  margin-bottom: 1rem;
  border-left: 3px solid;
}
.alert--info    { background: var(--color-info-bg);    color: var(--color-info);    border-color: var(--color-info); }
.alert--success { background: var(--color-success-bg); color: var(--color-success); border-color: var(--color-success); }
.alert--warning { background: var(--color-warning-bg); color: var(--color-warning); border-color: var(--color-warning); }
.alert--danger  { background: var(--color-danger-bg);  color: var(--color-danger);  border-color: var(--color-danger); }

/* ---- Badges ---- */
.badge {
  display: inline-flex; align-items: center;
  font-size: 11px; font-weight: 500;
  padding: 2px 8px;
  border-radius: 999px;
}
.badge--info    { background: var(--color-info-bg);    color: var(--color-info); }
.badge--success { background: var(--color-success-bg); color: var(--color-success); }
.badge--warning { background: var(--color-warning-bg); color: var(--color-warning); }
.badge--danger  { background: var(--color-danger-bg);  color: var(--color-danger); }
.badge--neutral { background: var(--color-bg); color: var(--color-muted); border: 1px solid var(--color-border); }

/* ---- Tables ---- */
.table { width: 100%; border-collapse: collapse; font-size: 13px; }
.table th { text-align: left; padding: 8px 12px; font-size: 12px; font-weight: 600; color: var(--color-muted); border-bottom: 2px solid var(--color-border); background: var(--color-bg); }
.table td { padding: 9px 12px; border-bottom: 1px solid var(--color-border); vertical-align: middle; }
.table tbody tr:last-child td { border-bottom: none; }
.table tbody tr:hover td { background: #fafaf8; }
code { font-family: var(--font-mono); font-size: 12px; background: var(--color-bg); padding: 1px 5px; border-radius: 3px; border: 1px solid var(--color-border); }

/* ---- Metrics grid ---- */
.metrics-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.metric { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: 1rem 1.25rem; box-shadow: var(--shadow-sm); }
.metric__label { font-size: 12px; color: var(--color-muted); margin-bottom: 4px; }
.metric__value { font-size: 28px; font-weight: 600; letter-spacing: -.02em; }
.metric--success .metric__value { color: var(--color-success); }
.metric--danger  .metric__value { color: var(--color-danger); }

/* ---- Progress bar ---- */
.progress-bar { height: 5px; background: var(--color-bg); border-radius: 999px; overflow: hidden; border: 1px solid var(--color-border); }
.progress-bar__fill { height: 100%; background: var(--color-info); border-radius: 999px; transition: width .5s ease; }
.progress-bar__fill--done  { background: var(--color-success); }
.progress-bar__fill--error { background: var(--color-danger); }

/* ---- Account tree ---- */
.tree-item { padding: 6px 14px; cursor: pointer; font-size: 13px; display: flex; align-items: center; gap: 6px; border-left: 2px solid transparent; transition: background .1s; }
.tree-item:hover { background: var(--color-bg); }
.tree-item--active { background: var(--color-info-bg) !important; color: var(--color-info); font-weight: 500; border-left-color: var(--color-info); }

/* ---- Course rows ---- */
.course-row { cursor: pointer; transition: background .1s; }
.course-row:hover td { background: #f0f5fb !important; }

/* ---- Spinner ---- */
.spinner {
  display: inline-block;
  width: 18px; height: 18px;
  border: 2px solid var(--color-border);
  border-top-color: var(--color-info);
  border-radius: 50%;
  animation: spin .7s linear infinite;
  flex-shrink: 0;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---- Utility ---- */
.nav-row { display: flex; justify-content: space-between; align-items: center; margin-top: 1.5rem; padding-top: 1rem; border-top: 1px solid var(--color-border); }
.text-muted { color: var(--color-muted); }
.text-sm { font-size: 12px; }
.loading-placeholder { text-align: center; padding: 3rem; color: var(--color-muted); font-size: 14px; display: flex; align-items: center; justify-content: center; gap: 10px; }
.checkbox-label { display: flex; align-items: center; gap: 6px; font-size: 13px; cursor: pointer; }

@media (max-width: 700px) {
  .metrics-grid { grid-template-columns: repeat(2, 1fr); }
  .field-row { flex-direction: column; }
}