:root {
  --font-sans: "IBM Plex Sans", "Segoe UI", "Helvetica Neue", sans-serif;
  --font-serif: "IBM Plex Serif", "Georgia", serif;
  --color-bg: #f7f7f7;
  --color-bg-2: #f7f7f7;
  --color-surface: #ffffff;
  --color-surface-2: #ffffff;
  --color-text: #222222;
  --color-muted: #6b6b6b;
  --color-surface-text: #222222;
  --color-surface-muted: #6b6b6b;
  --color-input-text: #222222;
  --color-accent: #992233;
  --color-accent-2: #6b6b6b;
  --color-accent-3: #992233;
  --color-border: rgba(34, 34, 34, 0.14);
  --color-on-accent: #ffffff;
  --color-header-text: #222222;
  --color-header-muted: #6b6b6b;
  --color-footer-text: #222222;
  --color-footer-muted: #6b6b6b;
  --color-header-bg: rgba(247, 247, 247, 0.92);
  --color-lang-bg: rgba(255, 255, 255, 0.8);
  --color-nav-bg: rgba(255, 255, 255, 0.98);
  --color-card-bg: rgba(255, 255, 255, 0.96);
  --color-media-bg: #ffffff;
  --color-badge-bg: rgba(153, 34, 51, 0.12);
  --color-btn-hover-bg: rgba(34, 34, 34, 0.06);
  --color-stat-bg: rgba(255, 255, 255, 0.96);
  --color-contact-bg: rgba(255, 255, 255, 0.96);
  --color-input-bg: #ffffff;
  --color-input-border: rgba(34, 34, 34, 0.2);
  --color-footer-bg: rgba(255, 255, 255, 0.94);
  --color-accent-hover: #7f1b2b;
  --bg-gradient: radial-gradient(circle at 70% 30%, rgba(153, 34, 51, 0.08), transparent 40%),
    radial-gradient(circle at 20% 80%, rgba(153, 34, 51, 0.06), transparent 45%),
    linear-gradient(140deg, #f7f7f7, #ededed);
  --texture-opacity: 0.08;
  --texture-blend: multiply;
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.25);
  --shadow-sm: 0 8px 20px rgba(0, 0, 0, 0.2);
  --radius-lg: 18px;
  --radius-md: 12px;
  --radius-pill: 999px;
  --transition: 0.25s ease;
}

body[data-theme="theme-dark-tech"] {
  --color-bg: #121212;
  --color-bg-2: #121212;
  --color-surface: #1e1e1e;
  --color-surface-2: #1e1e1e;
  --color-text: #e5e5e5;
  --color-muted: rgba(229, 229, 229, 0.72);
  --color-surface-text: #e5e5e5;
  --color-surface-muted: rgba(229, 229, 229, 0.72);
  --color-input-text: #e5e5e5;
  --color-accent: #992233;
  --color-accent-2: #00b3b3;
  --color-accent-3: #00b3b3;
  --color-border: rgba(229, 229, 229, 0.16);
  --color-on-accent: #e5e5e5;
  --color-header-text: #e5e5e5;
  --color-header-muted: rgba(229, 229, 229, 0.75);
  --color-footer-text: #e5e5e5;
  --color-footer-muted: rgba(229, 229, 229, 0.75);
  --color-header-bg: rgba(18, 18, 18, 0.92);
  --color-lang-bg: rgba(30, 30, 30, 0.82);
  --color-nav-bg: rgba(30, 30, 30, 0.98);
  --color-card-bg: rgba(30, 30, 30, 0.94);
  --color-media-bg: #121212;
  --color-badge-bg: rgba(0, 179, 179, 0.18);
  --color-btn-hover-bg: rgba(229, 229, 229, 0.08);
  --color-stat-bg: rgba(30, 30, 30, 0.9);
  --color-contact-bg: rgba(30, 30, 30, 0.92);
  --color-input-bg: rgba(18, 18, 18, 0.86);
  --color-input-border: rgba(229, 229, 229, 0.22);
  --color-footer-bg: rgba(18, 18, 18, 0.96);
  --color-accent-hover: #7f1b2b;
  --bg-gradient: radial-gradient(circle at 70% 30%, rgba(153, 34, 51, 0.18), transparent 40%),
    radial-gradient(circle at 20% 80%, rgba(0, 179, 179, 0.12), transparent 45%),
    linear-gradient(140deg, #121212, #1e1e1e);
  --texture-opacity: 0.18;
  --texture-blend: soft-light;
}

body[data-theme="theme-slate"] {
  --color-bg: #1f2937;
  --color-bg-2: #1f2937;
  --color-surface: #f8fafc;
  --color-surface-2: #f8fafc;
  --color-text: #cbd5e1;
  --color-muted: rgba(203, 213, 225, 0.82);
  --color-surface-text: #1f2937;
  --color-surface-muted: #64748b;
  --color-input-text: #1f2937;
  --color-accent: #007c91;
  --color-accent-2: #007c91;
  --color-accent-3: #007c91;
  --color-border: rgba(203, 213, 225, 0.85);
  --color-on-accent: #f8fafc;
  --color-header-text: #cbd5e1;
  --color-header-muted: #cbd5e1;
  --color-footer-text: #f8fafc;
  --color-footer-muted: #cbd5e1;
  --color-header-bg: rgba(31, 41, 55, 0.92);
  --color-lang-bg: rgba(248, 250, 252, 0.15);
  --color-nav-bg: rgba(31, 41, 55, 0.98);
  --color-card-bg: rgba(248, 250, 252, 0.96);
  --color-media-bg: #f1f5f9;
  --color-badge-bg: rgba(0, 124, 145, 0.14);
  --color-btn-hover-bg: rgba(15, 23, 42, 0.08);
  --color-stat-bg: rgba(248, 250, 252, 0.96);
  --color-contact-bg: rgba(248, 250, 252, 0.96);
  --color-input-bg: #ffffff;
  --color-input-border: rgba(100, 116, 139, 0.35);
  --color-footer-bg: rgba(31, 41, 55, 0.95);
  --color-accent-hover: #005e6e;
  --bg-gradient: radial-gradient(circle at 70% 30%, rgba(0, 124, 145, 0.15), transparent 40%),
    radial-gradient(circle at 20% 80%, rgba(203, 213, 225, 0.18), transparent 45%),
    linear-gradient(140deg, #1f2937, #111827);
  --texture-opacity: 0.12;
  --texture-blend: soft-light;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  min-height: 100vh;
}

body::before,
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -2;
}

body::before {
  background: var(--bg-gradient);
}

body::after {
  background: url("../img/bg-texture.jpg") center / 520px auto repeat;
  opacity: var(--texture-opacity);
  z-index: -1;
  mix-blend-mode: var(--texture-blend);
}

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

a {
  color: inherit;
  text-decoration: none;
}

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

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

p {
  margin: 0 0 1rem;
}

h1,
h2,
h3 {
  font-family: var(--font-serif);
  line-height: 1.2;
  margin: 0 0 0.75rem;
}

h1 {
  font-size: clamp(2rem, 3.4vw, 3.4rem);
}

h2 {
  font-size: clamp(1.5rem, 2.4vw, 2.4rem);
}

h3 {
  font-size: clamp(1.2rem, 2vw, 1.8rem);
}

h4 {
  margin: 0;
  font-size: 1rem;
  line-height: 1.35;
}

small {
  color: var(--color-muted);
}

.container {
  width: min(1200px, 92%);
  margin: 0 auto;
}

.section {
  padding: 3.5rem 0;
}

.section--tight {
  padding: 2.5rem 0;
}

.section-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: clamp(1.4rem, 2.1vw, 2.2rem);
}

.section-title::before {
  content: "";
  width: 32px;
  height: 3px;
  background: var(--color-accent);
  border-radius: var(--radius-pill);
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.75rem;
  color: var(--color-accent-2);
  font-weight: 600;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 12px;
  background: var(--color-accent);
  color: var(--color-on-accent);
  padding: 0.6rem 1rem;
  border-radius: var(--radius-pill);
  z-index: 1000;
}

.skip-link:focus {
  left: 12px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  color: var(--color-header-text);
  background: var(--color-header-bg);
  border-bottom: 1px solid var(--color-border);
}

@supports (backdrop-filter: blur(6px)) {
  .site-header {
    backdrop-filter: blur(10px);
  }
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 0.9rem 0;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem 0.6rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-lang-bg);
  font-weight: 600;
  font-size: 0.85rem;
}

.lang-link {
  color: var(--color-header-muted);
  padding: 0.2rem 0.45rem;
  border-radius: var(--radius-pill);
}

.lang-link.is-active,
.lang-link[aria-current="true"] {
  background: var(--color-accent);
  color: var(--color-on-accent);
}

.lang-sep {
  color: var(--color-header-muted);
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 600;
}

.logo img {
  height: 52px;
  width: auto;
}

.nav-toggle {
  border: 1px solid var(--color-border);
  background: var(--color-surface-2);
  color: var(--color-header-text);
  padding: 0.55rem 0.9rem;
  border-radius: var(--radius-pill);
  cursor: pointer;
  font-weight: 600;
}

.site-nav {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--color-nav-bg);
  border-bottom: 1px solid var(--color-border);
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition);
}

.site-nav.is-open {
  max-height: 520px;
}

.nav-list {
  list-style: none;
  padding: 1rem 1.25rem 0.5rem;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.nav-link {
  font-weight: 600;
  color: var(--color-header-text);
  white-space: nowrap;
}

.nav-link[aria-current="page"] {
  color: var(--color-accent);
}

.nav-link--cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.6rem 1.1rem;
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  color: var(--color-on-accent);
  font-weight: 700;
  box-shadow: var(--shadow-sm);
}

.nav-link--cta[aria-current="page"] {
  color: var(--color-on-accent);
}

.nav-cta-wrap {
  padding: 0 1.25rem 1.25rem;
}

@media (min-width: 960px) {
  .nav-toggle {
    display: none;
  }

  .site-nav {
    position: static;
    max-height: none;
    overflow: visible;
    background: transparent;
    border: none;
    display: flex;
    align-items: center;
    gap: clamp(0.55rem, 0.9vw, 1.1rem);
  }

  .nav-list {
    flex-direction: row;
    padding: 0;
    gap: clamp(0.55rem, 0.9vw, 0.9rem);
  }

  .nav-link {
    font-size: 0.95rem;
  }

  .nav-cta-wrap {
    padding: 0;
  }
}

.hero {
  padding: 4.5rem 0 3.5rem;
}

.hero-inner {
  display: grid;
  gap: 2.5rem;
  align-items: center;
}

.hero-inner--headline {
  align-items: stretch;
}

.hero-headline {
  display: grid;
  gap: 0.6rem;
}

.hero-columns {
  display: grid;
  gap: 2.5rem;
  align-items: center;
}

.hero-text {
  display: grid;
  gap: 1rem;
}

.hero-subtitle {
  font-size: 1.05rem;
  color: var(--color-accent-2);
  font-weight: 600;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.hero-media {
  position: relative;
  align-self: stretch;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-media img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  margin: 0 auto;
}


@media (min-width: 960px) {
  .hero-inner {
    grid-template-columns: 1.1fr 0.9fr;
  }

  .hero-inner--headline {
    grid-template-columns: 1fr;
  }

  .hero-columns {
    grid-template-columns: 1.1fr 0.9fr;
  }
}

@media (min-width: 900px) and (max-width: 1180px) and (orientation: landscape) {
  .hero-inner--headline .hero-headline {
    text-align: center;
  }

  .hero-inner--headline .hero-headline img {
    width: 100%;
    max-width: 100%;
    margin: 0 auto;
  }
}

.card {
  background: var(--color-card-bg);
  color: var(--color-surface-text);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.6rem;
  box-shadow: var(--shadow-sm);
}

.card small,
.contact-card small,
.stat small {
  color: var(--color-surface-muted);
}

.card-grid > .card {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  height: 100%;
}

.card-grid > .card .btn {
  margin-top: auto;
  align-self: flex-start;
}

.card + .card {
  margin-top: 1.5rem;
}

.card-grid {
  display: grid;
  column-gap: 1.5rem;
  row-gap: 2.25rem;
  align-items: stretch;
  grid-auto-rows: 1fr;
}

.card-grid > .card + .card {
  margin-top: 0;
}

@media (min-width: 960px) {
  .card-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.65rem;
}

.list li {
  position: relative;
  padding-left: 1.5rem;
}

.list li::before {
  content: "";
  width: 0.6rem;
  height: 0.6rem;
  border-radius: 50%;
  background: var(--color-accent);
  position: absolute;
  left: 0;
  top: 0.55rem;
}

.list--soft li::before {
  background: var(--color-accent-2);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.2rem 0.75rem;
  border-radius: var(--radius-pill);
  background: var(--color-badge-bg);
  color: var(--color-accent-3);
  font-weight: 600;
  font-size: 0.85rem;
}

.media-card {
  display: grid;
  gap: 1.4rem;
}

.media-card img {
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: var(--color-media-bg);
}

@media (min-width: 960px) {
  .media-card {
    grid-template-columns: 1.2fr 0.8fr;
    align-items: center;
  }

  .media-card.media-card--reverse {
    grid-template-columns: 0.8fr 1.2fr;
  }
}

@media (min-width: 600px) and (max-width: 900px) {
  .media-card img {
    justify-self: center;
  }
}

.note {
  border-left: 3px solid var(--color-accent);
  padding-left: 1rem;
  color: var(--color-muted);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.75rem 1.2rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  background: transparent;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
}

button.btn {
  font: inherit;
  cursor: pointer;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
  background: var(--color-btn-hover-bg);
}

.btn--accent {
  background: var(--color-accent);
  color: var(--color-on-accent);
  border-color: transparent;
}

.btn--accent:hover,
.btn--accent:focus-visible,
.btn--accent:active {
  background: var(--color-accent-hover);
  color: var(--color-on-accent);
}

.license-actions {
  margin-top: 1.25rem;
}

.modal {
  width: min(720px, 92vw);
  max-height: 86vh;
  padding: 0;
  border: 0;
  border-radius: var(--radius-lg);
  color: var(--color-surface-text);
  background: transparent;
}

.modal--wide {
  width: min(1040px, 94vw);
}

.modal::backdrop {
  background: rgba(0, 0, 0, 0.62);
}

.modal-card {
  position: relative;
  display: grid;
  gap: 1.2rem;
  max-height: 86vh;
  overflow: auto;
  padding: 1.6rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-card-bg);
  box-shadow: var(--shadow-lg);
}

.modal-close {
  position: absolute;
  top: 0.8rem;
  right: 0.8rem;
  width: 2rem;
  height: 2rem;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  color: var(--color-surface-text);
  background: var(--color-surface);
  cursor: pointer;
  font: inherit;
  line-height: 1;
}

.certificate-grid {
  display: grid;
  gap: 1rem;
}

.certificate-card {
  display: grid;
  gap: 0.9rem;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
}

.certificate-preview {
  width: 100%;
  min-height: 280px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-media-bg);
}

.certificate-body {
  display: grid;
  gap: 0.8rem;
  align-content: start;
}

@media (min-width: 760px) {
  .certificate-card {
    grid-template-columns: minmax(260px, 0.9fr) minmax(220px, 1.1fr);
    align-items: center;
  }
}

.stats-grid {
  display: grid;
  gap: 1.2rem;
}

@media (min-width: 720px) {
  .stats-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.stat {
  background: var(--color-stat-bg);
  color: var(--color-surface-text);
  padding: 1.2rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.stat strong {
  display: block;
  font-size: 1.2rem;
}

.gallery {
  display: grid;
  gap: 1.5rem;
}

@media (min-width: 860px) {
  .gallery {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.support-grid {
  display: grid;
  gap: 1.5rem;
}

@media (min-width: 860px) {
  .support-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.support-card {
  text-align: center;
  display: grid;
  gap: 0.75rem;
  align-content: start;
}

.support-media {
  height: clamp(160px, 30vw, 220px);
  display: flex;
  align-items: center;
  justify-content: center;
}

.support-media img {
  max-height: 100%;
  max-width: 100%;
  width: auto;
  height: auto;
}

.contact-grid {
  display: grid;
  gap: 2rem;
}

@media (min-width: 900px) {
  .contact-grid {
    grid-template-columns: 1.1fr 0.9fr;
  }
}

.contact-card {
  background: var(--color-contact-bg);
  color: var(--color-surface-text);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  padding: 1.6rem;
}

.contact-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.75rem;
}

.contact-list a {
  color: var(--color-accent-2);
}

.form-grid {
  display: grid;
  gap: 1rem;
}

.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

label {
  font-weight: 600;
}

input,
textarea {
  width: 100%;
  padding: 0.7rem 0.9rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-input-border);
  background: var(--color-input-bg);
  color: var(--color-input-text);
  font-family: var(--font-sans);
}

textarea {
  min-height: 140px;
  resize: vertical;
}

.form-hint {
  font-size: 0.85rem;
  color: var(--color-muted);
}

.map-frame {
  width: 100%;
  min-height: 320px;
  border: 0;
  border-radius: var(--radius-md);
}

.site-footer {
  margin-top: 3rem;
  padding: 2.5rem 0;
  color: var(--color-footer-text);
  background: var(--color-footer-bg);
  border-top: 1px solid var(--color-border);
}

.footer-grid {
  display: grid;
  gap: 2rem;
}

@media (min-width: 900px) {
  .footer-grid {
    grid-template-columns: 1.2fr 1fr 0.8fr;
  }
}

.footer-title {
  font-family: var(--font-serif);
  font-size: 1.2rem;
}

.footer-meta {
  font-size: 0.9rem;
  color: var(--color-footer-muted);
  display: grid;
  gap: 0.4rem;
}

.footer-link {
  color: var(--color-accent-2);
}

.reveal {
  animation: fadeUp 0.6s ease both;
}

.reveal.delay-1 {
  animation-delay: 0.1s;
}

.reveal.delay-2 {
  animation-delay: 0.2s;
}

.reveal.delay-3 {
  animation-delay: 0.3s;
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}


.theme-switcher {
  display: none!important;
  position: fixed;
  color: var(--color-surface-text);
  right: 1rem;
  bottom: 1rem;
  z-index: 1200;
  display: grid;
  gap: 0.4rem;
  padding: 0.7rem 0.8rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: var(--color-card-bg);
  box-shadow: var(--shadow-sm);
}

.theme-switcher__label {
  font-size: 0.75rem;
  color: var(--color-surface-muted);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.theme-switcher__select {
  min-width: 190px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-input-border);
  background: var(--color-input-bg);
  color: var(--color-input-text);
  font: inherit;
  padding: 0.45rem 0.65rem;
}

@media (max-width: 600px) {
  .theme-switcher {
    right: 0.65rem;
    left: 0.65rem;
    bottom: 0.65rem;
  }

  .theme-switcher__select {
    min-width: 0;
    width: 100%;
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .reveal {
    animation: none;
  }

  .btn,
  .site-nav {
    transition: none;
  }
}