/* ============================================================
   CSS custom properties — mirrors static/style.css theme
   ============================================================ */
:root {
  --bg: linear-gradient(165deg, #b2d9f5 0%, #ceeabd 50%, #edf6e8 100%);
  --card-bg: #ffffff;
  --card-shadow: 0 4px 24px rgba(0,0,0,.10);
  --text: #1a1d23;
  --text-muted: #6b7280;
  --border: #d1d5db;
  --input-bg: #ffffff;
  --input-focus-border: #2fa700;
  --input-focus-shadow: 0 0 0 3px rgba(47,167,0,.15);
  --btn-primary-bg: #2fa700;
  --btn-primary-hover: #279100;
  --btn-secondary-bg: #f3f4f6;
  --btn-secondary-hover: #e5e7eb;
  --btn-secondary-text: #374151;
  --alert-error-bg: #fef2f2;
  --alert-error-border: #fca5a5;
  --alert-error-text: #991b1b;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: linear-gradient(165deg, #06101e 0%, #091a0d 55%, #0f1117 100%);
    --card-bg: #1e2130;
    --card-shadow: 0 4px 24px rgba(0,0,0,.40);
    --text: #e5e7eb;
    --text-muted: #9ca3af;
    --border: #374151;
    --input-bg: #111827;
    --input-focus-border: #35b800;
    --input-focus-shadow: 0 0 0 3px rgba(53,184,0,.20);
    --btn-primary-bg: #35b800;
    --btn-primary-hover: #2fa700;
    --btn-secondary-bg: #374151;
    --btn-secondary-hover: #4b5563;
    --btn-secondary-text: #d1d5db;
    --alert-error-bg: #3b1515;
    --alert-error-border: #7f1d1d;
    --alert-error-text: #fca5a5;
  }
}

/* ============================================================
   Body & layout
   ============================================================ */
body.theme-body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  background: var(--bg);
  background-attachment: fixed;
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  padding: 2rem 1rem;
}

/* ============================================================
   Navbar (brand bar — mirrors static/header.html .brand)
   ============================================================ */
.theme-navbar {
  display: flex;
  align-items: center;
}

.theme-navbar__logo-wrap {
  display: flex;
  align-items: center;
  gap: 0.625rem;
}

.theme-navbar__logo {
  height: 2rem;
  width: auto;
  object-fit: contain;
}

/* ============================================================
   Container / Card
   ============================================================ */
.dex-container {
  background: var(--card-bg);
  border-radius: 12px;
  box-shadow: var(--card-shadow);
  padding: 2rem 2.5rem;
  width: 100%;
  max-width: 440px;
  margin: 0 auto;
  color: var(--text);
  text-align: left;
}

/* ============================================================
   Panel & heading
   ============================================================ */
.theme-panel {
  width: 100%;
}

.theme-heading {
  font-size: 1.375rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 1.25rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

/* ============================================================
   Form rows, labels, inputs
   ============================================================ */
.theme-form-row {
  margin-bottom: 1rem;
}

.theme-form-label {
  margin-bottom: 0.375rem;
}

.theme-form-label label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
}

.theme-form-input {
  display: block;
  width: 100%;
  padding: 0.625rem 0.875rem;
  font-size: 0.9375rem;
  font-family: inherit;
  background: var(--input-bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  transition: border-color .15s, box-shadow .15s;
  outline: none;
  -webkit-appearance: none;
}

.theme-form-input:focus {
  border-color: var(--input-focus-border);
  box-shadow: var(--input-focus-shadow);
}

.theme-form-input::placeholder {
  color: var(--text-muted);
}

/* ============================================================
   Buttons — override dex-btn base
   ============================================================ */
.dex-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 0.625rem 1.25rem;
  font-size: 0.9375rem;
  font-family: inherit;
  font-weight: 500;
  border-radius: 8px;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: background .15s, color .15s, border-color .15s, box-shadow .15s;
  white-space: nowrap;
  box-shadow: none;
}

.dex-btn:active {
  box-shadow: none;
}

/* Primary button (Login / Submit) */
.theme-btn--primary {
  background: var(--btn-primary-bg);
  color: #ffffff;
  border-color: var(--btn-primary-bg);
  margin-top: 0.5rem;
}

.theme-btn--primary:hover {
  background: var(--btn-primary-hover);
  border-color: var(--btn-primary-hover);
}

/* Success button (Grant Access) */
.theme-btn--success {
  background: var(--btn-primary-bg);
  color: #ffffff;
  border-color: var(--btn-primary-bg);
}

.theme-btn--success:hover {
  background: var(--btn-primary-hover);
  border-color: var(--btn-primary-hover);
}

/* Provider / secondary button */
.theme-btn-provider {
  background: var(--btn-secondary-bg);
  color: var(--btn-secondary-text);
  border-color: var(--border);
}

.theme-btn-provider:hover {
  background: var(--btn-secondary-hover);
}

/* Reset icon float so buttons stay flex */
.dex-btn-icon {
  float: none;
  flex-shrink: 0;
  border-radius: 4px;
}

.dex-btn-text {
  flex: 1;
  text-align: center;
  line-height: normal;
  padding: 0 0.5rem;
}

/* ============================================================
   Error box
   ============================================================ */
.dex-error-box {
  background: var(--alert-error-bg);
  border: 1px solid var(--alert-error-border);
  color: var(--alert-error-text);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  font-size: 0.9rem;
  font-weight: normal;
  max-width: 100%;
  margin: 0.75rem 0;
  text-align: left;
}

/* ============================================================
   Separator & subtle text
   ============================================================ */
.dex-separator {
  border: none;
  border-top: 1px solid var(--border);
  margin: 1rem 0;
  color: transparent;
}

.dex-subtle-text {
  color: var(--text-muted);
  font-size: 0.875rem;
}

.dex-list {
  color: var(--text-muted);
  font-size: 0.875rem;
  text-align: left;
  display: inline-block;
  list-style: circle;
  margin-top: 0.5rem;
}

/* ============================================================
   Back link
   ============================================================ */
.theme-link-back {
  margin-top: 1rem;
  text-align: center;
}

.theme-link-back a {
  color: var(--btn-primary-bg);
  text-decoration: none;
  font-size: 0.875rem;
}

.theme-link-back a:hover {
  text-decoration: underline;
}