/* ============================================================
   global-styles.css – Duerr Sphere Projekt-Hub
   Design-Tokens angelehnt an das duerro.ch Corporate Design
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Nunito:wght@300;400;500;600;700;800&display=swap');

:root {
  --color-primary:       #3B7DE6;
  --color-primary-hover: #2A6DD8;
  --color-primary-light: #EBF1FD;
  --color-dark:          #0C1C34;
  --color-dark-mid:      #1E3A5F;
  --color-accent:        #5FE0D6;

  --color-white:      #ffffff;
  --color-bg:         #F8FAFC;
  --color-surface:    #ffffff;
  --color-text:       #1E3A5F;
  --color-text-muted: #4A6080;
  --color-border:     #D1DCF0;

  --color-error:      #D9534F;
  --color-error-bg:   #FBEAEA;

  --font-sans: 'Nunito', system-ui, -apple-system, sans-serif;

  --radius-md:  8px;
  --radius-lg:  12px;
  --radius-xl:  20px;
  --radius-full: 9999px;

  --shadow-md: 0 4px 16px rgba(12, 28, 52, 0.12);
  --shadow-lg: 0 8px 32px rgba(12, 28, 52, 0.16);
  --shadow-card: 0 2px 12px rgba(59, 125, 230, 0.08);

  --transition: 0.25s ease;
}

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

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  min-height: 100vh;
}

.hidden { display: none !important; }

/* ── Login-Overlay ─────────────────────────────────────────── */
.login-overlay {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  background: var(--color-dark);
  overflow: hidden;
}

.login-overlay::before {
  content: '';
  position: absolute;
  top: -20%; right: -10%;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(59,125,230,0.25) 0%, transparent 70%);
  pointer-events: none;
}

.login-overlay::after {
  content: '';
  position: absolute;
  bottom: -15%; left: -5%;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(95,224,214,0.12) 0%, transparent 70%);
  pointer-events: none;
}

.login-box {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 360px;
  background: var(--color-surface);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  padding: 2.5rem 2rem;
  text-align: center;
}

.login-box__logo {
  height: 108px;
  width: auto;
  margin: 0 auto 1.25rem;
  display: block;
}

.login-box h2 {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-dark);
  margin-bottom: 0.5rem;
}

.login-box p {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}

.login-box input[type="password"] {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--font-sans);
  font-size: 1rem;
  color: var(--color-text);
  background: var(--color-white);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition), box-shadow var(--transition);
  margin-bottom: 1rem;
}

.login-box input[type="password"]:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(59, 125, 230, 0.15);
}

.login-box button {
  width: 100%;
  padding: 0.75rem 1.5rem;
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-white);
  background: var(--color-primary);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background var(--transition), box-shadow var(--transition), transform 0.15s ease;
}

.login-box button:hover {
  background: var(--color-primary-hover);
  box-shadow: 0 4px 16px rgba(59, 125, 230, 0.4);
  transform: translateY(-1px);
}

.login-error {
  min-height: 1.2em;
  margin-top: 0.75rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-error);
}

/* ── Hub-Header ────────────────────────────────────────────── */
header {
  background: var(--color-dark);
  color: var(--color-white);
  padding: 3rem 1.5rem 3.5rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

header::before {
  content: '';
  position: absolute;
  top: -30%; right: -5%;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(59,125,230,0.2) 0%, transparent 65%);
  pointer-events: none;
}

header .container {
  position: relative;
  z-index: 1;
}

.logout-btn {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  padding: 0.5rem 1.1rem;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-white);
  background: transparent;
  border: 1.5px solid rgba(255, 255, 255, 0.4);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition);
}

.logout-btn:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--color-white);
}

.header__logo {
  height: 96px;
  width: auto;
  margin: 0 auto 1.25rem;
  display: block;
}

header h1 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  margin-bottom: 0.5rem;
}

header p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 1.05rem;
}

/* ── Hub-Content ───────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: 1000px;
  margin-inline: auto;
  padding-inline: 1.5rem;
}

#hub-content > .container {
  padding-block: 3rem;
}

#hub-content h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 1.5rem;
}

/* ── Projekt-Cards ─────────────────────────────────────────── */
.project-list {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.5rem;
}

.project-list li {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: box-shadow var(--transition), transform var(--transition);
}

.project-list li:hover {
  box-shadow: var(--shadow-card);
  transform: translateY(-2px);
}

.project-list a {
  display: block;
  padding: 1.5rem;
  text-decoration: none;
}

.project-list a:hover h3 {
  color: var(--color-primary);
}

.project-list h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 0.4rem;
  transition: color var(--transition);
}

.project-list p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin: 0;
}

#project-error.login-error {
  color: var(--color-error);
  text-align: center;
  margin-top: 1rem;
}