:root {
  /* Light Theme Colors */
  --accent: var(--brand-primary-color, #2563eb);
  --accent-2: var(--brand-secondary-color, #4f46e5);
  --bg: var(--brand-background-color, #ffffff);
  --panel: var(--brand-panel-color, #f8fafc);
  --ink: var(--brand-text-color, #0f172a);
  --muted: var(--brand-muted-color, #64748b);
  --line: var(--brand-line-color, #e2e8f0);
  
  --card-bg: rgba(255, 255, 255, 0.9);
  --input-bg: #ffffff;
  --header-bg: rgba(255, 255, 255, 0.85);
  
  --font-body: var(--brand-body-font, "Inter");
  --font-heading: var(--brand-heading-font, "Inter");

  /* Logo visibility */
  --logo-light-display: block;
  --logo-dark-display: none;
}

[data-theme="dark"] {
  /* Dark Theme Colors from Branding */
  --accent: var(--brand-dark-primary-color, #3b82f6);
  --accent-2: var(--brand-dark-secondary-color, #6366f1);
  --bg: var(--brand-dark-background-color, #0f172a);
  --panel: var(--brand-dark-panel-color, #1e293b);
  --ink: var(--brand-dark-text-color, #f8fafc);
  --muted: var(--brand-dark-muted-color, #94a3b8);
  --line: var(--brand-dark-line-color, #334155);
  
  --card-bg: rgba(30, 41, 59, 0.9);
  --input-bg: #0f172a;
  --header-bg: rgba(15, 23, 42, 0.85);

  /* Logo visibility */
  --logo-light-display: none;
  --logo-dark-display: block;
}

.sf-logo-light { display: var(--logo-light-display) !important; }
.sf-logo-dark { display: var(--logo-dark-display) !important; }

body {
  margin: 0;
  font-family: var(--font-body), ui-sans-serif, system-ui, sans-serif;
  background-color: var(--bg);
  color: var(--ink);
  line-height: 1.5;
  transition: background-color 0.2s, color 0.2s;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading), ui-sans-serif, system-ui, sans-serif;
  color: var(--ink);
}

.sf-shell { display: grid; gap: 28px; }
.sf-topbar { display: grid; gap: 18px; padding: 24px 0 8px; }
.sf-breadcrumb { display: inline-flex; align-items: center; gap: 10px; color: var(--muted); font-size: 13px; letter-spacing: .12em; text-transform: uppercase; }
.sf-breadcrumb::before { content: ""; width: 28px; height: 1px; background: color-mix(in srgb, var(--accent) 40%, white); }
.sf-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.sf-toolbar h1 { margin: 0; font-size: clamp(32px, 4vw, 60px); line-height: .96; letter-spacing: -.05em; max-width: 12ch; }
.sf-toolbar p { margin: 10px 0 0; max-width: 68ch; }
.sf-nav { display: flex; gap: 10px; flex-wrap: wrap; }

.sf-pill, .sf-link-button { 
  min-height: 44px; 
  display: inline-flex; 
  align-items: center; 
  justify-content: center; 
  gap: 8px; 
  padding: 0 16px; 
  border-radius: 999px; 
  text-decoration: none; 
  font-weight: 700; 
  border: 1px solid var(--line); 
  background: var(--card-bg); 
  color: var(--ink); 
  box-shadow: 0 10px 24px rgba(0, 0, 0, .06); 
  transition: all 0.2s;
}

.sf-pill.active, .sf-link-button.primary { 
  background: linear-gradient(135deg, var(--accent), var(--accent-2)); 
  color: #fff; 
  border-color: transparent; 
}

.sf-grid { display: grid; gap: 20px; }
.sf-card { position: relative; overflow: hidden; border: 1px solid var(--line); border-radius: 30px; background: var(--card-bg); box-shadow: 0 26px 64px rgba(0, 0, 0, .08); }
.sf-card.soft { background: linear-gradient(160deg, color-mix(in srgb, var(--accent) 7%, var(--bg)), var(--card-bg)); }

.sf-card.accent { 
  background:
    radial-gradient(circle at top left, color-mix(in srgb, var(--accent) 28%, white) 0, transparent 34%),
    radial-gradient(circle at bottom right, color-mix(in srgb, var(--accent-2) 22%, white) 0, transparent 38%),
    linear-gradient(160deg, rgba(10, 18, 36, .96), rgba(15, 23, 42, .92));
  color: #fff;
  border-color: rgba(255,255,255,.08);
}
.sf-card.accent * { color: #fff; }

.sf-card-body { padding: clamp(22px, 3.4vw, 36px); }
.sf-badge { display: inline-flex; align-items: center; gap: 8px; min-height: 34px; padding: 0 14px; border-radius: 999px; background: color-mix(in srgb, var(--accent) 10%, var(--bg)); color: var(--accent); font-size: 12px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }

.sf-display { margin: 18px 0 12px; font-family: var(--font-heading), sans-serif; font-size: clamp(34px, 5vw, 72px); line-height: .92; letter-spacing: -.06em; }
.sf-subcopy { font-size: 16px; line-height: 1.7; max-width: 62ch; }

.sf-mini-card { padding: 16px; border-radius: 20px; background: var(--card-bg); border: 1px solid var(--line); }

/* Form inputs */
input, textarea, select {
  background: var(--input-bg);
  color: var(--ink);
  border: 1px solid var(--line);
  padding: 12px;
  border-radius: 12px;
  width: 100%;
  font-family: inherit;
  transition: all 0.2s;
}

/* Header Styles */
.sf-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--header-bg);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
  height: 80px;
  display: flex;
  align-items: center;
}

.sf-header-container {
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.sf-nav-link {
  color: var(--ink);
  text-decoration: none;
  font-weight: 700;
  padding: 10px 18px;
  border-radius: 999px;
  transition: all 0.2s;
}
.sf-nav-link:hover, .sf-nav-link.active {
  background: color-mix(in srgb, var(--accent) 10%, var(--bg));
  color: var(--accent);
}

.sf-action-btn {
  color: var(--ink);
  background: transparent;
  border: 0;
  cursor: pointer;
  padding: 10px;
  border-radius: 999px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}
.sf-action-btn:hover { background: var(--line); }

/* Logo sizing */
.sf-logo img { transition: height 0.2s; }
@media (max-width: 768px) {
  .sf-logo img { height: var(--logo-mobile-height, 32px) !important; }
}

.sf-hidden { display: none !important; }