/* =========================================================================
   GAAD Austria Styles
   ========================================================================= */

:root {
  /* Colors */
  --color-white: #ffffff;
  --color-bg-light: #f9fafb;
  --color-text-main: #1f2937;
  --color-text-muted: #6b7280;

  /* GAAD Blue */
  --color-gaad-blue: #005A9C;
  --color-gaad-blue-hover: #004070;
  --color-gaad-blue-light: #e6f0f9;

  /* Typography */
  --font-main: 'Inter', system-ui, sans-serif;

  /* Layout */
  --container-width: 800px;
  --nav-height: 80px;
  --transition: all 0.2s ease-in-out;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
}

body {
  font-family: var(--font-main);
  background-color: var(--color-white);
  color: var(--color-text-main);
  line-height: 1.6;
  font-size: 1.125rem;
}

a {
  color: var(--color-gaad-blue);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
  transition: var(--transition);
}

a:hover {
  color: var(--color-gaad-blue-hover);
  text-decoration-thickness: 2px;
}

:focus-visible {
  outline: 3px solid var(--color-gaad-blue);
  outline-offset: 3px;
  border-radius: 2px;
}

/* Typography Utilities */
.text-center {
  text-align: center;
}

.text-blue {
  color: var(--color-gaad-blue) !important;
}

.text-white {
  color: var(--color-white) !important;
}

.bg-light {
  background-color: var(--color-bg-light);
}

.lead {
  font-size: 1.35rem;
  font-weight: 400;
  color: var(--color-text-main);
  margin-bottom: 1.5rem;
  line-height: 1.5;
}

.section-title {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--color-text-main);
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}

.eyebrow {
  display: inline-block;
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-gaad-blue);
  margin-bottom: 1rem;
}

/* Layout Utilities */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: 6rem 0;
}

.content-wrapper p {
  margin-bottom: 1.25rem;
  color: var(--color-text-muted);
}

/* Header & Nav */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--nav-height);
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid #e5e7eb;
  z-index: 1000;
  display: flex;
  align-items: center;
}

.header-container {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-weight: 800;
  font-size: 1.5rem;
  color: var(--color-gaad-blue);
  letter-spacing: -0.02em;
}

.nav-list {
  display: flex;
  list-style: none;
  gap: 2rem;
  align-items: center;
}

.nav-link {
  text-decoration: none;
  font-weight: 600;
  color: var(--color-text-main);
}

.nav-link:hover {
  text-decoration: none;
  color: var(--color-gaad-blue);
}

.btn-small {
  padding: 0.5rem 1rem;
  border: 2px solid var(--color-gaad-blue);
  border-radius: 6px;
  color: var(--color-gaad-blue);
}

.btn-small:hover {
  background-color: var(--color-gaad-blue);
  color: var(--color-white);
}

/* Skip Link */
.skip-link {
  position: absolute;
  top: -100px;
  left: 20px;
  background: var(--color-gaad-blue);
  color: var(--color-white);
  padding: 10px 20px;
  font-weight: 600;
  border-radius: 4px;
  z-index: 10000;
  text-decoration: none;
}

.skip-link:focus {
  top: 20px;
}

/* Hero Section */
.hero-section {
  padding: 12rem 0 8rem;
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  letter-spacing: -0.03em;
  color: var(--color-text-main);
}

.hero-subtitle {
  font-size: clamp(1.125rem, 2vw, 1.35rem);
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto;
}

/* Mission Highlights */
.highlight-box {
  background-color: var(--color-gaad-blue-light);
  border-left: 4px solid var(--color-gaad-blue);
  padding: 2rem;
  border-radius: 0 12px 12px 0;
  margin-top: 2rem;
}

.highlight-box p {
  color: var(--color-text-main);
}

.highlight-box .lead {
  font-weight: 600;
  margin-bottom: 1rem;
}

/* CfP Section */
.cfp-section {
  padding-bottom: 8rem;
}

.cfp-card {
  background-color: var(--color-gaad-blue);
  padding: 4rem 2rem;
  border-radius: 16px;
}

.cfp-card p.text-white {
  color: rgba(255, 255, 255, 0.9) !important;
}

.btn-primary-inverse {
  display: inline-block;
  text-decoration: none;
  background-color: var(--color-white);
  color: var(--color-gaad-blue);
  padding: 1rem 2rem;
  font-weight: 600;
  border-radius: 8px;
  margin-top: 1rem;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  transition: transform 0.2s, box-shadow 0.2s;
}

.btn-primary-inverse:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
  text-decoration: none;
  color: var(--color-gaad-blue-hover);
}

/* Footer */
.footer {
  padding: 3rem 0;
  border-top: 1px solid #e5e7eb;
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

/* Responsive */
@media (max-width: 600px) {
  .nav-list {
    display: none;
    /* simple hidden on very small for now, to keep minimalist layout */
  }
}