:root {
  /* Brand Colors */
  --brand-blue: #3a6ff8;
  --deep-gray: #0f1f3d;
  --silver: #d9e1f2;
  --green-check: #1fce88;
  --error-red: #f46666;
  --amber-yellow: #ffb347;
  --light-gray: #edf2fb;
  --very-light-gray: #f9fbff;
  --off-white: #ffffff;

  /* Radii & Shadows */
  --radius-lg: 16px;
  --radius-pill: 999px;
  --shadow-soft: 0 18px 45px rgba(55, 101, 202, 0.15);

  /* Fonts */
  --font-body: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-heading: 'Montserrat', system-ui, sans-serif;
}

/* =====================================================================
   Global Reset & Base
   ===================================================================== */

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

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-body);
  font-weight: 400;
  color: #1f2a44;
  background: linear-gradient(180deg, #ffffff 0%, #f6f8ff 50%, #f1f6ff 100%);
}

/* Layout helpers */

.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.hidden {
  display: none !important;
}

/* =====================================================================
   Buttons & Avatar (global nutzbar)
   ===================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-pill);
  border: none;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.6rem 1.4rem;
  cursor: pointer;
  text-decoration: none;
  transition:
    transform 0.08s ease,
    box-shadow 0.08s ease,
    background 0.1s ease;
}

.btn-primary {
  background: linear-gradient(135deg, var(--brand-blue), #2a73ff);
  color: #fff;
  box-shadow: 0 12px 24px rgba(0, 81, 255, 0.35);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 16px 32px rgba(0, 81, 255, 0.4);
}

.btn-outline {
  border: 1px solid var(--silver);
  background: #fff;
  color: #333;
}

.btn-outline:hover {
  background: var(--very-light-gray);
}

.btn-ghost {
  border-radius: var(--radius-pill);
  padding-inline: 1.2rem;
  background: transparent;
  border: 1px solid transparent;
  color: #333;
}

.btn-ghost:hover {
  border-color: var(--silver);
  background: rgba(0, 0, 0, 0.02);
}

.btn-disabled {
  background: var(--light-gray);
  color: #888;
  cursor: not-allowed;
  box-shadow: none;
}

/* Avatar */

.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--deep-gray);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.9rem;
}