/* ==========================================================================
   sustainabilitycamp.at - Main Styles
   Redesigned with "Organic Sophistication" aesthetic
   ========================================================================== */

/* --------------------------------------------------------------------------
   Google Fonts Import - Distinctive Typography
   -------------------------------------------------------------------------- */
@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,300;0,9..144,400;0,9..144,500;0,9..144,600;0,9..144,700;1,9..144,400&family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;1,9..40,400&display=swap');

/* --------------------------------------------------------------------------
   CSS Custom Properties
   -------------------------------------------------------------------------- */
:root {
  /* Primary Colors - sustainabilitycamp Brand */
  --color-primary: #08085e;
  --color-primary-light: #1a1a8e;
  --color-primary-dark: #050540;
  --color-accent: #a2ef44;
  --color-accent-light: #b8f56d;
  --color-accent-dark: #8cd93a;

  /* Secondary - Same as Primary for brand consistency */
  --color-secondary: #08085e;
  --color-secondary-light: #1a1a8e;

  /* Neutral - Light Blue based tones */
  --color-background: #ffffff;
  --color-background-alt: #e8fcf6;
  --color-background-warm: #d8f5ed;
  --color-background-dark: #08085e;
  --color-text: #1c1c1c;
  --color-text-light: #4a4a4a;
  --color-text-muted: #6d6d6d;
  --color-text-inverse: #ffffff;

  /* UI */
  --color-border: #d0e8e0;
  --color-border-light: #e8fcf6;
  --color-shadow: rgba(8, 8, 94, 0.08);
  --color-shadow-dark: rgba(8, 8, 94, 0.15);
  --color-shadow-warm: rgba(162, 239, 68, 0.25);

  /* Typography - Distinctive Font Pairing */
  --font-heading: 'Fraunces', Georgia, serif;
  --font-body: 'DM Sans', system-ui, sans-serif;

  /* Font Sizes - Refined Scale */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 2rem;
  --text-4xl: 2.5rem;
  --text-5xl: 3.5rem;
  --text-6xl: 4.5rem;

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  --spacing-4xl: 6rem;

  /* Border Radius - More organic shapes */
  --radius-sm: 0.375rem;
  --radius-md: 0.75rem;
  --radius-lg: 1.25rem;
  --radius-xl: 2rem;
  --radius-organic: 30% 70% 70% 30% / 30% 30% 70% 70%;
  --radius-full: 9999px;

  /* Transitions - Smooth and elegant */
  --transition-fast: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 350ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Container */
  --container-max: 1200px;
  --container-padding: 1.5rem;

  /* Header */
  --header-height: 80px;
}

/* --------------------------------------------------------------------------
   Animation Keyframes
   -------------------------------------------------------------------------- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

@keyframes grain {
  0%, 100% { transform: translate(0, 0); }
  10% { transform: translate(-5%, -10%); }
  20% { transform: translate(-15%, 5%); }
  30% { transform: translate(7%, -25%); }
  40% { transform: translate(-5%, 25%); }
  50% { transform: translate(-15%, 10%); }
  60% { transform: translate(15%, 0%); }
  70% { transform: translate(0%, 15%); }
  80% { transform: translate(3%, 35%); }
  90% { transform: translate(-10%, 10%); }
}

/* --------------------------------------------------------------------------
   Reset & Base Styles
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-background);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* Subtle grain texture overlay */
body::before {
  content: '';
  position: fixed;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  opacity: 0.025;
  pointer-events: none;
  z-index: 1;
  animation: grain 8s steps(10) infinite;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-accent-dark);
}

ul, ol {
  list-style: none;
}

button {
  font-family: inherit;
  font-size: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* Selection styling */
::selection {
  background-color: var(--color-accent);
  color: var(--color-primary-dark);
}

/* --------------------------------------------------------------------------
   Typography
   -------------------------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.15;
  color: var(--color-text);
  letter-spacing: -0.02em;
}

h1 {
  font-size: var(--text-4xl);
  font-weight: 500;
}

h2 {
  font-size: var(--text-3xl);
  font-weight: 500;
}

h3 {
  font-size: var(--text-2xl);
}

h4 {
  font-size: var(--text-xl);
}

p {
  margin-bottom: var(--spacing-md);
}

p:last-child {
  margin-bottom: 0;
}

.text-center {
  text-align: center;
}

.text-muted {
  color: var(--color-text-light);
}

/* Text highlight accent */
.text-accent {
  color: var(--color-accent-dark);
}

/* Italic emphasis for headings */
em, .italic {
  font-style: italic;
  font-family: var(--font-heading);
}

/* --------------------------------------------------------------------------
   Layout
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.section {
  padding: var(--spacing-4xl) 0;
}

.section--alt {
  background-color: var(--color-background-alt);
}

.section--dark {
  background-color: var(--color-primary-dark);
  color: var(--color-text-inverse);
}

.section--dark h2,
.section--dark h3 {
  color: var(--color-text-inverse);
}

/* --------------------------------------------------------------------------
   Header
   -------------------------------------------------------------------------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background-color: var(--color-primary);
  box-shadow: none;
  z-index: 1000;
  transition: background-color var(--transition-base), box-shadow var(--transition-base), backdrop-filter var(--transition-base);
}

.header--scrolled {
  background-color: rgba(8, 8, 94, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 4px 30px var(--color-shadow-dark);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.header__logo {
  display: flex;
  align-items: center;
  animation: fadeInDown 0.6s ease-out;
}

.header__logo img {
  height: 50px;
  width: auto;
  transition: transform var(--transition-fast);
}

.header__logo:hover img {
  transform: scale(1.05);
}

/* Navigation */
.nav {
  display: none;
  animation: fadeInDown 0.6s ease-out 0.1s both;
}

.nav__list {
  display: flex;
  align-items: center;
  gap: var(--spacing-xl);
}

.nav__item {
  position: relative;
}

.nav__link {
  font-weight: 500;
  color: var(--color-text-inverse);
  padding: var(--spacing-sm) 0;
  transition: color var(--transition-fast), opacity var(--transition-fast);
  position: relative;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-accent);
  transition: width var(--transition-base);
}

.nav__link:hover {
  color: var(--color-accent-light);
}

.nav__link:hover::after {
  width: 100%;
}

/* Dropdown */
.nav__dropdown {
  position: relative;
}

.nav__dropdown-toggle {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-weight: 500;
  color: var(--color-text-inverse);
  cursor: pointer;
  transition: color var(--transition-fast);
}

.nav__dropdown-toggle::after {
  content: '';
  width: 0;
  height: 0;
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-top: 5px solid currentColor;
  transition: transform var(--transition-fast);
}

.nav__dropdown:hover .nav__dropdown-toggle {
  color: var(--color-accent-light);
}

.nav__dropdown:hover .nav__dropdown-toggle::after {
  transform: rotate(180deg);
}

.nav__dropdown-menu {
  position: absolute;
  top: calc(100% + 10px);
  left: 50%;
  transform: translateX(-50%) translateY(-10px);
  min-width: 180px;
  background-color: var(--color-background);
  border-radius: var(--radius-lg);
  box-shadow: 0 10px 40px var(--color-shadow-dark);
  padding: var(--spacing-sm) 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-fast), visibility var(--transition-fast), transform var(--transition-fast);
}

.nav__dropdown:hover .nav__dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.nav__dropdown-link {
  display: block;
  padding: var(--spacing-sm) var(--spacing-lg);
  color: var(--color-text);
  font-size: var(--text-sm);
  font-weight: 500;
  transition: background-color var(--transition-fast), color var(--transition-fast), padding-left var(--transition-fast);
}

.nav__dropdown-link:hover {
  background-color: var(--color-background-alt);
  color: var(--color-primary);
  padding-left: calc(var(--spacing-lg) + 4px);
}

/* Mobile Menu Toggle */
.nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 30px;
  height: 30px;
  padding: 0;
  background: none;
  border: none;
  cursor: pointer;
}

.nav-toggle__line {
  width: 100%;
  height: 2px;
  background-color: #ffffff;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.nav-toggle.active .nav-toggle__line:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active .nav-toggle__line:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active .nav-toggle__line:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Navigation */
.mobile-nav {
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--color-background);
  padding: var(--spacing-xl);
  transform: translateX(100%);
  transition: transform var(--transition-base);
  overflow-y: auto;
  z-index: 999;
}

.mobile-nav.active {
  transform: translateX(0);
}

.mobile-nav__list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.mobile-nav__link {
  display: block;
  font-size: var(--text-lg);
  font-weight: 500;
  color: var(--color-text);
  padding: var(--spacing-sm) 0;
  border-bottom: 1px solid var(--color-border-light);
}

.mobile-nav__submenu {
  padding-left: var(--spacing-lg);
  margin-top: var(--spacing-sm);
}

.mobile-nav__submenu a {
  font-size: var(--text-base);
  font-weight: 400;
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: 14px 28px;
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 600;
  text-align: center;
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
  cursor: pointer;
  text-transform: none;
  letter-spacing: 0.01em;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(120deg, transparent, rgba(255,255,255,0.2), transparent);
  transform: translateX(-100%);
  transition: transform 0.6s;
}

.btn:hover::before {
  transform: translateX(100%);
}

.btn--primary {
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
  border: 2px solid var(--color-primary);
}

.btn--primary:hover {
  background-color: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  color: var(--color-text-inverse);
  transform: translateY(-3px);
  box-shadow: 0 10px 30px var(--color-shadow-dark);
}

.btn--secondary {
  background-color: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn--secondary:hover {
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
  transform: translateY(-3px);
  box-shadow: 0 10px 30px var(--color-shadow-dark);
}

.btn--accent {
  background-color: var(--color-accent);
  color: var(--color-primary-dark);
  border: 2px solid var(--color-accent);
}

.btn--accent:hover {
  background-color: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
  color: var(--color-text-inverse);
  transform: translateY(-3px);
  box-shadow: 0 10px 30px var(--color-shadow-warm);
}

.btn--white {
  background-color: var(--color-background);
  color: var(--color-primary);
  border: 2px solid var(--color-background);
}

.btn--white:hover {
  background-color: transparent;
  border-color: var(--color-background);
  color: var(--color-text-inverse);
  transform: translateY(-3px);
}

.btn--large {
  padding: var(--spacing-lg) var(--spacing-2xl);
  font-size: var(--text-lg);
}

/* Header Button */
.header .btn--primary {
  background-color: var(--color-accent);
  color: var(--color-primary-dark);
  border-color: var(--color-accent);
}

.header .btn--primary:hover {
  background-color: var(--color-accent-light);
  border-color: var(--color-accent-light);
  color: var(--color-primary-dark);
}

/* --------------------------------------------------------------------------
   Hero Section
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--header-height);
  background: linear-gradient(180deg, var(--color-background) 0%, var(--color-background-alt) 100%);
  overflow: hidden;
}

/* Decorative organic shapes */
.hero::before {
  content: '';
  position: absolute;
  top: -20%;
  right: -10%;
  width: 60%;
  height: 80%;
  background: radial-gradient(ellipse at center, rgba(8, 8, 94, 0.06) 0%, transparent 70%);
  border-radius: var(--radius-organic);
  pointer-events: none;
  animation: float 8s ease-in-out infinite;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -15%;
  width: 50%;
  height: 70%;
  background: radial-gradient(ellipse at center, rgba(162, 239, 68, 0.08) 0%, transparent 70%);
  border-radius: 70% 30% 30% 70% / 70% 70% 30% 30%;
  pointer-events: none;
  animation: float 10s ease-in-out infinite reverse;
}

.hero__content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: var(--spacing-3xl) 0;
  max-width: 950px;
  margin: 0 auto;
}

.hero__badge {
  display: inline-block;
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
  color: var(--color-primary-dark);
  font-size: var(--text-sm);
  font-weight: 700;
  padding: 10px 20px;
  border-radius: var(--radius-full);
  margin-bottom: var(--spacing-xl);
  animation: fadeInDown 0.6s ease-out 0.2s both;
  letter-spacing: 0.05em;
  box-shadow: 0 4px 20px var(--color-shadow-warm);
}

.hero__title {
  font-size: var(--text-4xl);
  max-width: 850px;
  margin: 0 auto var(--spacing-lg);
  animation: fadeInUp 0.8s ease-out 0.3s both;
  line-height: 1.1;
}

.hero__title em {
  font-style: italic;
  color: var(--color-primary);
}

.hero__subtitle {
  font-size: var(--text-xl);
  color: var(--color-text-light);
  max-width: 650px;
  margin: 0 auto var(--spacing-xl);
  animation: fadeInUp 0.8s ease-out 0.4s both;
  line-height: 1.6;
}

.hero__date {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: var(--spacing-xl);
  animation: fadeInUp 0.8s ease-out 0.5s both;
  background-color: var(--color-background);
  padding: var(--spacing-md) var(--spacing-xl);
  border-radius: var(--radius-full);
  box-shadow: 0 4px 20px var(--color-shadow);
}

.hero__date-icon {
  width: 24px;
  height: 24px;
  color: var(--color-accent-dark);
}

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--spacing-md);
  animation: fadeInUp 0.8s ease-out 0.6s both;
}

/* --------------------------------------------------------------------------
   Event Teaser Section
   -------------------------------------------------------------------------- */
.event-teaser {
  position: relative;
  overflow: hidden;
}

.event-teaser::before {
  content: '';
  position: absolute;
  top: 50%;
  left: -20%;
  width: 40%;
  height: 100%;
  background: radial-gradient(ellipse at center, rgba(162, 239, 68, 0.06) 0%, transparent 70%);
  border-radius: var(--radius-organic);
  pointer-events: none;
  transform: translateY(-50%);
}

.event-teaser__inner {
  display: grid;
  gap: var(--spacing-3xl);
  align-items: center;
}

.event-teaser__image {
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: 0 30px 60px var(--color-shadow-dark);
  position: relative;
  transition: transform var(--transition-slow), box-shadow var(--transition-slow);
}

.event-teaser__image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(8, 8, 94, 0.1) 0%, transparent 50%);
  pointer-events: none;
}

.event-teaser__image:hover {
  transform: translateY(-5px);
  box-shadow: 0 40px 80px var(--color-shadow-dark);
}

.event-teaser__image img {
  width: 100%;
  height: auto;
  transition: transform var(--transition-slow);
}

.event-teaser__image:hover img {
  transform: scale(1.03);
}

.event-teaser__content h2 {
  margin-bottom: var(--spacing-lg);
  position: relative;
}

.event-teaser__content h2::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
  border-radius: var(--radius-full);
}

.event-teaser__content p {
  font-size: var(--text-lg);
  color: var(--color-text-light);
  margin-bottom: var(--spacing-xl);
  line-height: 1.8;
}

.event-teaser__cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

/* --------------------------------------------------------------------------
   What is Barcamp Section
   -------------------------------------------------------------------------- */
.barcamp__intro {
  max-width: 800px;
  margin: 0 auto var(--spacing-3xl);
  text-align: center;
}

.barcamp__intro h2 {
  margin-bottom: var(--spacing-lg);
}

.barcamp__intro p {
  font-size: var(--text-lg);
  color: var(--color-text-light);
  line-height: 1.8;
}

.barcamp__features {
  display: grid;
  gap: var(--spacing-lg);
}

.barcamp__feature {
  text-align: left;
  padding: var(--spacing-xl) var(--spacing-xl) var(--spacing-xl) calc(var(--spacing-xl) + 8px);
  background-color: var(--color-background);
  border-radius: var(--radius-lg);
  box-shadow: 0 4px 30px var(--color-shadow);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.barcamp__feature::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--color-primary) 0%, var(--color-accent) 100%);
  transition: width var(--transition-base);
}

.barcamp__feature:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 50px var(--color-shadow-dark);
}

.barcamp__feature:hover::before {
  width: 6px;
}

.barcamp__feature-icon {
  width: 56px;
  height: 56px;
  margin: 0 0 var(--spacing-lg);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 20px var(--color-shadow-dark);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.barcamp__feature:hover .barcamp__feature-icon {
  transform: scale(1.1) rotate(-3deg);
  box-shadow: 0 12px 30px var(--color-shadow-dark);
}

.barcamp__feature-icon svg {
  width: 28px;
  height: 28px;
  color: var(--color-text-inverse);
}

.barcamp__feature h3 {
  font-size: var(--text-xl);
  margin-bottom: var(--spacing-sm);
  font-weight: 600;
}

.barcamp__feature p {
  font-size: var(--text-base);
  color: var(--color-text-light);
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   Target Audience Section
   -------------------------------------------------------------------------- */
.audience__intro {
  max-width: 750px;
  margin: 0 auto var(--spacing-3xl);
  text-align: center;
}

.audience__intro h2 {
  margin-bottom: var(--spacing-md);
}

.audience__intro p {
  font-size: var(--text-lg);
  color: var(--color-text-light);
  line-height: 1.7;
}

.audience__list {
  display: grid;
  gap: var(--spacing-lg);
}

.audience__item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-lg);
  padding: var(--spacing-xl);
  background-color: var(--color-background);
  border-radius: var(--radius-lg);
  border-left: none;
  box-shadow: 0 4px 30px var(--color-shadow);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  position: relative;
  overflow: hidden;
}

.audience__item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
}

.audience__item:hover {
  transform: translateX(8px);
  box-shadow: 0 10px 40px var(--color-shadow-dark);
}

.audience__icon {
  flex-shrink: 0;
  width: 52px;
  height: 52px;
  background: linear-gradient(135deg, var(--color-background-alt) 0%, var(--color-background-warm) 100%);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-base), background var(--transition-base);
}

.audience__item:hover .audience__icon {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  transform: scale(1.1);
}

.audience__icon svg {
  width: 24px;
  height: 24px;
  color: var(--color-primary);
  transition: color var(--transition-base);
}

.audience__item:hover .audience__icon svg {
  color: var(--color-text-inverse);
}

.audience__content h3 {
  font-size: var(--text-lg);
  margin-bottom: var(--spacing-xs);
  font-weight: 600;
}

.audience__content p {
  font-size: var(--text-base);
  color: var(--color-text-light);
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   Ruckblick/Gallery Teaser
   -------------------------------------------------------------------------- */
.rueckblick__intro {
  max-width: 700px;
  margin: 0 auto var(--spacing-3xl);
  text-align: center;
}

.rueckblick__intro h2 {
  margin-bottom: var(--spacing-md);
}

.rueckblick__intro p {
  font-size: var(--text-lg);
  color: var(--color-text-light);
  line-height: 1.7;
}

.rueckblick__grid {
  display: grid;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-2xl);
}

.rueckblick__card {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  aspect-ratio: 16/9;
  box-shadow: 0 20px 50px var(--color-shadow-dark);
  transition: transform var(--transition-slow), box-shadow var(--transition-slow);
}

.rueckblick__card:hover {
  transform: translateY(-10px) scale(1.02);
  box-shadow: 0 30px 70px var(--color-shadow-dark);
}

.rueckblick__card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.rueckblick__card:hover img {
  transform: scale(1.1);
}

.rueckblick__card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(8, 8, 94, 0.9) 0%, rgba(8, 8, 94, 0.3) 40%, transparent 70%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--spacing-2xl);
  color: var(--color-text-inverse);
  transition: background var(--transition-slow);
}

.rueckblick__card:hover .rueckblick__card-overlay {
  background: linear-gradient(to top, rgba(8, 8, 94, 0.95) 0%, rgba(8, 8, 94, 0.4) 40%, transparent 70%);
}

.rueckblick__card-title {
  font-size: var(--text-2xl);
  margin-bottom: var(--spacing-xs);
  font-weight: 600;
  transition: transform var(--transition-base);
  color: #ffffff;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.rueckblick__card:hover .rueckblick__card-title {
  transform: translateY(-5px);
}

.rueckblick__card-date {
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--color-background-alt);
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.2);
}

/* --------------------------------------------------------------------------
   Team Section
   -------------------------------------------------------------------------- */
.team__inner {
  display: grid;
  gap: var(--spacing-3xl);
  align-items: center;
}

.team__image {
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: 0 30px 60px var(--color-shadow-dark);
  position: relative;
  transition: transform var(--transition-slow), box-shadow var(--transition-slow);
}

.team__image::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(8, 8, 94, 0.1) 0%, transparent 50%);
  pointer-events: none;
  z-index: 1;
}

.team__image:hover {
  transform: translateY(-5px);
  box-shadow: 0 40px 80px var(--color-shadow-dark);
}

.team__image img {
  width: 100%;
  height: auto;
  transition: transform var(--transition-slow);
}

.team__image:hover img {
  transform: scale(1.03);
}

.team__content h2 {
  margin-bottom: var(--spacing-lg);
  position: relative;
}

.team__content h2::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
  border-radius: var(--radius-full);
}

.team__content p {
  font-size: var(--text-lg);
  color: var(--color-text-light);
  margin-bottom: var(--spacing-xl);
  line-height: 1.8;
}

.team__members {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.team__member {
  background: linear-gradient(135deg, var(--color-background-alt) 0%, var(--color-background-warm) 100%);
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--radius-full);
  text-decoration: none;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-primary);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
  cursor: pointer;
}

.team__member:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 15px var(--color-shadow);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  color: var(--color-text-inverse);
}

.team__member--link {
  cursor: pointer;
  text-decoration: none;
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
  color: var(--color-primary-dark);
}

.team__member--link:hover {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  color: var(--color-text-inverse);
}

/* --------------------------------------------------------------------------
   Sponsors Section
   -------------------------------------------------------------------------- */
.sponsors__intro {
  max-width: 600px;
  margin: 0 auto var(--spacing-3xl);
  text-align: center;
}

.sponsors__intro h2 {
  margin-bottom: var(--spacing-md);
}

.sponsors__intro p {
  font-size: var(--text-lg);
  color: var(--color-text-light);
  line-height: 1.7;
}

.sponsors__grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: var(--spacing-2xl);
}

/* 3+2 layout for 5 sponsors */
.sponsors__grid--3-2 {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: var(--spacing-2xl) var(--spacing-lg);
  max-width: 900px;
  margin: 0 auto;
}

/* First row: 3 items spanning 2 columns each */
.sponsors__grid--3-2 .sponsors__logo:nth-child(1),
.sponsors__grid--3-2 .sponsors__logo:nth-child(2),
.sponsors__grid--3-2 .sponsors__logo:nth-child(3) {
  grid-column: span 2;
  justify-self: center;
}

/* Second row: 2 items centered */
.sponsors__grid--3-2 .sponsors__logo:nth-child(4) {
  grid-column: 2 / span 2;
  justify-self: center;
}

.sponsors__grid--3-2 .sponsors__logo:nth-child(5) {
  grid-column: 4 / span 2;
  justify-self: center;
}

@media (max-width: 768px) {
  .sponsors__grid--3-2 {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl);
  }

  .sponsors__grid--3-2 .sponsors__logo:nth-child(1),
  .sponsors__grid--3-2 .sponsors__logo:nth-child(2),
  .sponsors__grid--3-2 .sponsors__logo:nth-child(3),
  .sponsors__grid--3-2 .sponsors__logo:nth-child(4),
  .sponsors__grid--3-2 .sponsors__logo:nth-child(5) {
    grid-column: span 1;
    justify-self: center;
  }
}

.sponsors__logo {
  flex: 0 0 auto;
  max-width: 220px;
  filter: grayscale(100%);
  opacity: 0.6;
  transition: filter var(--transition-base), opacity var(--transition-base), transform var(--transition-base);
  padding: var(--spacing-md);
}

.sponsors__logo:hover {
  filter: grayscale(0%);
  opacity: 1;
  transform: scale(1.1);
}

.sponsors__logo img {
  max-height: 130px;
  width: auto;
}

/* --------------------------------------------------------------------------
   Newsletter Section
   -------------------------------------------------------------------------- */
.newsletter {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: var(--color-text-inverse);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.newsletter::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 60%;
  height: 150%;
  background: radial-gradient(ellipse at center, rgba(162, 239, 68, 0.15) 0%, transparent 70%);
  border-radius: var(--radius-organic);
  pointer-events: none;
}

.newsletter::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 40%;
  height: 80%;
  background: radial-gradient(ellipse at center, rgba(255, 255, 255, 0.05) 0%, transparent 70%);
  border-radius: 70% 30% 30% 70% / 70% 70% 30% 30%;
  pointer-events: none;
}

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

.newsletter h2 {
  color: var(--color-text-inverse);
  margin-bottom: var(--spacing-md);
}

.newsletter p {
  max-width: 550px;
  margin: 0 auto var(--spacing-xl);
  opacity: 0.9;
  font-size: var(--text-lg);
  line-height: 1.7;
}

.newsletter__form {
  max-width: 500px;
  margin: 0 auto;
}

/* Mailchimp Form Overrides */
#mc_embed_signup {
  background: transparent !important;
  font-family: var(--font-body) !important;
}

#mc_embed_signup form {
  padding: 0 !important;
}

#mc_embed_signup .mc-field-group {
  width: 100% !important;
  padding-bottom: 0 !important;
}

#mc_embed_signup input[type="email"],
#mc_embed_signup input[type="text"] {
  width: 100% !important;
  padding: 16px var(--spacing-xl) !important;
  font-size: var(--text-base) !important;
  border: 2px solid rgba(255,255,255,0.2) !important;
  border-radius: var(--radius-full) !important;
  background: rgba(255,255,255,0.1) !important;
  color: var(--color-text-inverse) !important;
  margin-bottom: var(--spacing-md) !important;
  backdrop-filter: blur(10px) !important;
  -webkit-backdrop-filter: blur(10px) !important;
  transition: all var(--transition-base) !important;
}

#mc_embed_signup input[type="email"]::placeholder,
#mc_embed_signup input[type="text"]::placeholder {
  color: rgba(255,255,255,0.6) !important;
}

#mc_embed_signup input[type="email"]:focus,
#mc_embed_signup input[type="text"]:focus {
  border-color: var(--color-accent) !important;
  outline: none !important;
  background: rgba(255,255,255,0.15) !important;
  box-shadow: 0 0 0 4px rgba(162, 239, 68, 0.2) !important;
}

#mc_embed_signup .button {
  width: 100% !important;
  padding: 16px var(--spacing-xl) !important;
  font-family: var(--font-body) !important;
  font-size: var(--text-base) !important;
  font-weight: 600 !important;
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%) !important;
  color: var(--color-primary-dark) !important;
  border-radius: var(--radius-full) !important;
  border: none !important;
  cursor: pointer !important;
  transition: all var(--transition-base) !important;
  box-shadow: 0 8px 25px rgba(162, 239, 68, 0.3) !important;
}

#mc_embed_signup .button:hover {
  background: linear-gradient(135deg, var(--color-accent-light) 0%, var(--color-accent) 100%) !important;
  transform: translateY(-3px) !important;
  box-shadow: 0 12px 35px rgba(162, 239, 68, 0.4) !important;
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.footer {
  background: linear-gradient(180deg, var(--color-primary-dark) 0%, #071a12 100%);
  color: var(--color-text-inverse);
  padding: var(--spacing-4xl) 0 var(--spacing-xl);
  position: relative;
  overflow: hidden;
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
}

.footer__inner {
  display: grid;
  gap: var(--spacing-2xl);
}

.footer__brand {
  text-align: center;
}

.footer__logo {
  max-width: 180px;
  margin: 0 auto var(--spacing-lg);
  filter: brightness(0) invert(1);
  opacity: 0.9;
  transition: opacity var(--transition-fast);
}

.footer__logo:hover {
  opacity: 1;
}

.footer__tagline {
  font-size: var(--text-sm);
  opacity: 0.7;
  max-width: 300px;
  margin: 0 auto;
  line-height: 1.6;
}

.footer__nav {
  text-align: center;
}

.footer__nav h4 {
  color: var(--color-accent);
  font-family: var(--font-body);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: var(--spacing-lg);
  font-weight: 600;
}

.footer__nav-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--spacing-lg);
}

.footer__nav-link {
  color: rgba(253, 251, 247, 0.7);
  font-size: var(--text-sm);
  transition: color var(--transition-fast), transform var(--transition-fast);
  display: inline-block;
}

.footer__nav-link:hover {
  color: var(--color-accent);
  transform: translateY(-2px);
}

.footer__social {
  text-align: center;
}

.footer__social h4 {
  color: var(--color-accent);
  font-family: var(--font-body);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: var(--spacing-lg);
  font-weight: 600;
}

.footer__social-links {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
}

.footer__social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background-color: rgba(253, 251, 247, 0.08);
  border-radius: var(--radius-lg);
  color: var(--color-text-inverse);
  transition: background-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
}

.footer__social-link:hover {
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
  color: var(--color-primary-dark);
  transform: translateY(-4px);
  box-shadow: 0 8px 25px rgba(162, 239, 68, 0.3);
}

.footer__social-link svg {
  width: 20px;
  height: 20px;
}

.footer__bottom {
  margin-top: var(--spacing-3xl);
  padding-top: var(--spacing-xl);
  border-top: 1px solid rgba(253, 251, 247, 0.08);
  text-align: center;
}

.footer__copyright {
  font-size: var(--text-sm);
  opacity: 0.5;
}

.footer__legal {
  display: flex;
  justify-content: center;
  gap: var(--spacing-xl);
  margin-top: var(--spacing-md);
}

.footer__legal-link {
  font-size: var(--text-sm);
  color: rgba(253, 251, 247, 0.5);
  transition: color var(--transition-fast);
}

.footer__legal-link:hover {
  color: var(--color-accent);
}

/* --------------------------------------------------------------------------
   Page Header (for subpages)
   -------------------------------------------------------------------------- */
.page-header {
  padding-top: calc(var(--header-height) + var(--spacing-4xl));
  padding-bottom: var(--spacing-3xl);
  background: linear-gradient(180deg, var(--color-background-alt) 0%, var(--color-background) 100%);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-header::before {
  content: '';
  position: absolute;
  top: -30%;
  right: -20%;
  width: 50%;
  height: 100%;
  background: radial-gradient(ellipse at center, rgba(8, 8, 94, 0.05) 0%, transparent 70%);
  border-radius: var(--radius-organic);
  pointer-events: none;
}

.page-header__title {
  font-size: var(--text-4xl);
  margin-bottom: var(--spacing-md);
  animation: fadeInUp 0.6s ease-out both;
}

.page-header__subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-light);
  animation: fadeInUp 0.6s ease-out 0.1s both;
  line-height: 1.7;
}

/* --------------------------------------------------------------------------
   Key Facts
   -------------------------------------------------------------------------- */
.key-facts {
  display: grid;
  gap: var(--spacing-lg);
  padding: var(--spacing-2xl) 0;
}

.key-fact {
  text-align: center;
  padding: var(--spacing-xl);
  background-color: var(--color-background);
  border-radius: var(--radius-xl);
  box-shadow: 0 10px 40px var(--color-shadow);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  position: relative;
  overflow: hidden;
}

.key-fact::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-accent) 100%);
}

.key-fact:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 50px var(--color-shadow-dark);
}

.key-fact__number {
  font-family: var(--font-heading);
  font-size: var(--text-5xl);
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: var(--spacing-xs);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.key-fact__label {
  font-size: var(--text-sm);
  color: var(--color-text-light);
  font-weight: 500;
  letter-spacing: 0.02em;
}

/* --------------------------------------------------------------------------
   Utility Classes
   -------------------------------------------------------------------------- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.mb-4 { margin-bottom: var(--spacing-xl); }
.mb-5 { margin-bottom: var(--spacing-2xl); }

/* --------------------------------------------------------------------------
   Scroll Animation Classes
   -------------------------------------------------------------------------- */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.animate-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.animate-on-scroll.slide-left {
  transform: translateX(-40px);
}

.animate-on-scroll.slide-left.is-visible {
  transform: translateX(0);
}

.animate-on-scroll.slide-right {
  transform: translateX(40px);
}

.animate-on-scroll.slide-right.is-visible {
  transform: translateX(0);
}

.animate-on-scroll.scale-in {
  transform: scale(0.9);
}

.animate-on-scroll.scale-in.is-visible {
  transform: scale(1);
}

/* Stagger delays for children */
.stagger-children > *:nth-child(1) { transition-delay: 0s; }
.stagger-children > *:nth-child(2) { transition-delay: 0.1s; }
.stagger-children > *:nth-child(3) { transition-delay: 0.2s; }
.stagger-children > *:nth-child(4) { transition-delay: 0.3s; }
.stagger-children > *:nth-child(5) { transition-delay: 0.4s; }
.stagger-children > *:nth-child(6) { transition-delay: 0.5s; }

/* Reduce motion for accessibility */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .animate-on-scroll {
    opacity: 1;
    transform: none;
  }
}

/* --------------------------------------------------------------------------
   Responsive Styles
   -------------------------------------------------------------------------- */

/* sm: 640px */
@media (min-width: 640px) {
  .hero__title {
    font-size: var(--text-5xl);
  }

  .barcamp__features {
    grid-template-columns: repeat(2, 1fr);
  }

  .audience__list {
    grid-template-columns: repeat(2, 1fr);
  }

  .rueckblick__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .key-facts {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* md: 768px */
@media (min-width: 768px) {
  .nav-toggle {
    display: none;
  }

  .nav {
    display: block;
  }

  .event-teaser__inner {
    grid-template-columns: 1fr 1fr;
  }

  .team__inner {
    grid-template-columns: 1fr 1fr;
  }

  .footer__inner {
    grid-template-columns: repeat(3, 1fr);
    text-align: left;
  }

  .footer__brand,
  .footer__nav,
  .footer__social {
    text-align: left;
  }

  .footer__logo {
    margin: 0 0 var(--spacing-lg);
  }

  .footer__nav-list,
  .footer__social-links {
    justify-content: flex-start;
  }
}

/* lg: 1024px */
@media (min-width: 1024px) {
  :root {
    --text-4xl: 2.5rem;
    --text-5xl: 3.5rem;
    --text-6xl: 4.5rem;
  }

  .barcamp__features {
    grid-template-columns: repeat(4, 1fr);
  }

  .audience__list {
    grid-template-columns: repeat(3, 1fr);
  }

  .sponsors__logo {
    max-width: 200px;
  }

  .sponsors__logo img {
    max-height: 120px;
  }
}

/* xl: 1280px */
@media (min-width: 1280px) {
  :root {
    --container-max: 1400px;
  }

  .hero__title {
    font-size: var(--text-6xl);
  }
}

/* Print Styles */
@media print {
  .header,
  .nav-toggle,
  .mobile-nav,
  .newsletter,
  .footer__social {
    display: none;
  }

  .section {
    padding: var(--spacing-xl) 0;
  }

  body {
    font-size: 12pt;
    color: #000;
  }

  a {
    color: #000;
    text-decoration: underline;
  }
}