/* ==========================================================================
   Fritz-Walter-Stiftung — main.css
   Modern Foundation Design + Classic Typography
   ========================================================================== */

/* --- Custom Properties --- */
:root {
  --black:       #0A0A0A;
  --black-soft:  #1A1A1A;
  --dark:        #111111;
  --gray-900:    #222222;
  --gray-700:    #555555;
  --gray-500:    #888888;
  --gray-300:    #CCCCCC;
  --gray-100:    #F2F2F2;
  --white:       #FFFFFF;
  --red:         #E2001A;
  --red-dark:    #B80015;

  --font-display: 'Urbanist', system-ui, sans-serif;
  --font-body:    'Urbanist', system-ui, sans-serif;

  --container-xl: 1440px;
  --container:    1200px;
  --container-sm: 800px;
  --gap:          2rem;
  --radius:       16px;
  --radius-lg:    24px;
  --radius-xl:    32px;
  --radius-pill:  100px;
  --transition:   0.35s cubic-bezier(0.25, 0.1, 0.25, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  font-size: 1.125rem;
  line-height: 1.5;
  font-weight: 300;
  color: var(--gray-700);
  background-color: var(--white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

ul, ol { list-style: none; }

::selection {
  background-color: var(--red);
  color: var(--white);
}

/* --- Typography --- */
h1, h2, h3 {
  font-family: var(--font-display);
  color: var(--black);
  line-height: 1.1;
  font-weight: 300;
}

h1 {
  font-size: clamp(3rem, 7vw, 6.5rem);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(2rem, 5vw, 4.5rem);
  letter-spacing: -0.015em;
}

h3 {
  font-size: clamp(1.4rem, 2.5vw, 2.5rem);
  letter-spacing: -0.01em;
}

h4 {
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gray-500);
}

p {
  margin-bottom: 1rem;
}

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

.text-lg {
  font-size: 1.35rem;
  line-height: 1.5;
}

.text-xl {
  font-size: clamp(1.25rem, 2vw, 1.5rem);
  line-height: 1.5;
}

.accent {
  font-weight: 700;
}

.italic {
  font-weight: 700;
}

/* --- Layout --- */
.container {
  width: min(var(--container), 100% - 4rem);
  margin-inline: auto;
}

.container--xl {
  width: min(var(--container-xl), 100% - 4rem);
  margin-inline: auto;
}

.container--sm {
  width: min(var(--container-sm), 100% - 4rem);
  margin-inline: auto;
}

.section {
  padding: 8rem 0;
}

.section--compact {
  padding: 5rem 0;
}

/* --- Dark Sections --- */
.bg-black {
  background-color: var(--black);
  color: var(--gray-300);
}

.bg-black h1,
.bg-black h2,
.bg-black h3 {
  color: var(--white);
}

.bg-dark {
  background-color: var(--dark);
  color: var(--gray-300);
}

.bg-dark h1,
.bg-dark h2,
.bg-dark h3 {
  color: var(--white);
}

.bg-gray {
  background-color: var(--gray-100);
}

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

.bg-red h1,
.bg-red h2,
.bg-red h3 {
  color: var(--white);
}

/* --- Images --- */
.img-cover {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.img-frame {
  overflow: hidden;
  position: relative;
  background-color: var(--gray-100);
}

.img-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.6s ease;
}

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

/* Legacy placeholder fallback */
.img-placeholder {
  background-color: var(--gray-100);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-body);
  font-size: 0.8rem;
  color: var(--gray-500);
  min-height: 300px;
  text-align: center;
  padding: 1.5rem;
  overflow: hidden;
  position: relative;
}

.img-placeholder--dark {
  background-color: var(--gray-900);
  color: var(--gray-500);
}

/* --- Utility --- */
.text-center { text-align: center; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mt-6 { margin-top: 3rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-4 { margin-bottom: 2rem; }
.mb-6 { margin-bottom: 3rem; }

/* --- Responsive --- */
@media (max-width: 768px) {
  .section {
    padding: 4.5rem 0;
  }

  .section--compact {
    padding: 3rem 0;
  }

  .container,
  .container--xl {
    width: min(100% - 2rem, var(--container));
  }
}