/* ==============================
   Trustena GmbH
   Premium · Refined · Alive
   ============================== */

:root {
  --color-primary: #12202e;
  --color-primary-dark: #0a1420;
  --color-primary-light: #1c3044;
  --color-accent: #2d7d9a;
  --color-accent-dark: #1e5a70;
  --color-accent-light: #4a9db8;
  --color-accent-subtle: rgba(45, 125, 154, 0.08);
  --color-white: #ffffff;
  --color-bg: #f7f6f4;
  --color-bg-alt: #eeede8;
  --color-text: #1a1a1a;
  --color-text-light: #6b6b6b;
  --color-text-muted: #9a9a9a;
  --color-border: rgba(18, 32, 46, 0.08);
  --color-border-strong: rgba(18, 32, 46, 0.15);
  --font-serif: 'Playfair Display', Georgia, 'Times New Roman', serif;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --max-width: 1120px;
  --header-h: 80px;
  --transition: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --shadow-sm: 0 1px 3px rgba(18, 32, 46, 0.04);
  --shadow: 0 4px 20px rgba(18, 32, 46, 0.06);
  --shadow-lg: 0 12px 40px rgba(18, 32, 46, 0.08);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 32px;
}

.text-accent { color: var(--color-accent); }

.sep {
  display: block;
  width: 48px;
  height: 2px;
  background: var(--color-accent);
  margin: 20px auto;
  border-radius: 1px;
}
.sep--left { margin: 20px 0; }
.sep--light { background: var(--color-accent-light); }

/* ============================== BUTTONS ============================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 16px 38px;
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  text-align: center;
  white-space: nowrap;
}

.btn--primary {
  background: var(--color-primary);
  color: var(--color-white);
}
.btn--primary:hover {
  background: var(--color-primary-light);
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

.btn--outline {
  background: transparent;
  color: var(--color-white);
  border: 1px solid rgba(255, 255, 255, 0.25);
}
.btn--outline:hover {
  border-color: var(--color-accent-light);
  background: rgba(45, 122, 90, 0.08);
  color: var(--color-accent-light);
}

.btn--accent {
  background: var(--color-accent);
  color: var(--color-white);
}
.btn--accent:hover {
  background: var(--color-accent-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

/* ============================== HEADER ============================== */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
  height: var(--header-h);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-primary);
  font-family: var(--font-serif);
  letter-spacing: -0.03em;
}
.logo__icon { width: 34px; height: 34px; color: var(--color-accent); }
.logo__highlight { color: var(--color-accent); }

.nav { display: flex; align-items: center; gap: 36px; }

.nav__link {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--color-text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: var(--transition);
  position: relative;
  padding: 4px 0;
}
.nav__link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: var(--transition);
  transform: translateX(-50%);
  border-radius: 1px;
}
.nav__link:hover { color: var(--color-text); }
.nav__link:hover::after { width: 100%; }
.nav__link--cta {
  padding: 10px 24px;
  background: var(--color-accent);
  color: var(--color-white);
  border-radius: 4px;
}
.nav__link--cta::after { display: none; }
.nav__link--cta:hover { background: var(--color-accent-dark); color: var(--color-white); }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-primary);
  transition: var(--transition);
  border-radius: 1px;
}

/* ============================== HERO ============================== */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--color-primary);
  overflow: hidden;
  padding-top: var(--header-h);
}

.hero__bg {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(ellipse at 70% 20%, rgba(45, 122, 90, 0.12) 0%, transparent 60%),
    radial-gradient(ellipse at 20% 70%, rgba(45, 122, 90, 0.06) 0%, transparent 50%);
}
.hero__bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(45deg, transparent, transparent 12px, rgba(255,255,255,0.01) 12px, rgba(255,255,255,0.01) 13px);
}

.hero__content {
  position: relative;
  z-index: 2;
  max-width: 680px;
  padding: 100px 32px;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: rgba(45, 122, 90, 0.12);
  color: var(--color-accent-light);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 36px;
  border-radius: 100px;
}
.hero__badge svg { width: 14px; height: 14px; }

.hero__title {
  font-family: var(--font-serif);
  font-size: clamp(3rem, 6vw, 4.5rem);
  font-weight: 400;
  line-height: 1.12;
  color: var(--color-white);
  letter-spacing: -0.03em;
}
.hero__title strong { font-weight: 700; color: var(--color-accent-light); }

.hero__sep {
  display: block;
  width: 64px;
  height: 2px;
  background: var(--color-accent);
  margin: 28px 0;
  border-radius: 1px;
}

.hero__subtitle {
  font-size: 1.05rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: 44px;
  max-width: 520px;
  font-weight: 300;
}

.hero__actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 72px;
}

.hero__stats {
  display: flex;
  gap: 56px;
  flex-wrap: wrap;
  padding-top: 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.hero__stat {
  color: rgba(255, 255, 255, 0.3);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.hero__stat strong {
  display: block;
  color: var(--color-accent-light);
  font-size: 1.15rem;
  font-family: var(--font-serif);
  margin-bottom: 4px;
  letter-spacing: 0;
  text-transform: none;
}

/* ============================== SECTIONS ============================== */

.section { padding: 120px 0; }
.section--dark { background: var(--color-primary); color: var(--color-white); }
.section--alt { background: var(--color-bg); }

.section__header {
  text-align: center;
  margin-bottom: 72px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.section__label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.68rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--color-accent);
  margin-bottom: 12px;
}
.section__label::before,
.section__label::after {
  content: '';
  width: 20px;
  height: 1px;
  background: var(--color-accent);
  opacity: 0.3;
}
.section__label--light { color: var(--color-accent-light); }
.section__label--light::before,
.section__label--light::after { background: var(--color-accent-light); opacity: 0.3; }

.section__title {
  font-family: var(--font-serif);
  font-size: clamp(2.2rem, 3.5vw, 2.8rem);
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: -0.02em;
}
.section__title strong { font-weight: 700; color: var(--color-accent); }
.section__title--light { color: var(--color-white); }
.section__title--light strong { color: var(--color-accent-light); }

.section__cta { text-align: center; margin-top: 56px; }

/* ============================== ABOUT ============================== */

.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about__text p {
  margin-bottom: 24px;
  font-size: 0.95rem;
  line-height: 1.9;
  color: var(--color-text-light);
}

.about__text .btn { margin-top: 28px; }

.about__cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.about__card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  padding: 36px 28px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.about__card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition);
}
.about__card:hover {
  border-color: transparent;
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}
.about__card:hover::before { transform: scaleX(1); }

.about__card-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--color-accent);
  background: var(--color-accent-subtle);
  border-radius: 10px;
}
.about__card-icon svg { width: 22px; height: 22px; }

.about__card h3 {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--color-primary);
}

.about__card p {
  font-size: 0.82rem;
  color: var(--color-text-light);
  line-height: 1.7;
}

/* ============================== WHY US ============================== */

.features__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: rgba(255, 255, 255, 0.06);
  position: relative;
}

.feature {
  background: var(--color-primary);
  padding: 56px 40px;
  transition: var(--transition);
  position: relative;
}
.feature::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 20%;
  right: 20%;
  height: 2px;
  background: var(--color-accent);
  transform: scaleX(0);
  transition: var(--transition);
}
.feature:hover::after { transform: scaleX(1); }
.feature:hover {
  background: var(--color-primary-light);
}

.feature__number {
  font-family: var(--font-serif);
  font-size: 2.2rem;
  font-weight: 400;
  color: var(--color-accent);
  opacity: 0.25;
  line-height: 1;
  margin-bottom: 20px;
}

.feature__title {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--color-white);
}

.feature p {
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.45);
  line-height: 1.75;
}

/* ============================== SERVICES ============================== */

.services__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.service-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  padding: 40px 32px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition);
}
.service-card:hover {
  border-color: transparent;
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}
.service-card:hover::before { transform: scaleX(1); }

.service-card__icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  color: var(--color-accent);
  background: var(--color-accent-subtle);
  border-radius: 12px;
  transition: var(--transition);
}
.service-card:hover .service-card__icon {
  background: var(--color-accent);
  color: var(--color-white);
}
.service-card__icon svg { width: 26px; height: 26px; }

.service-card h3 {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--color-primary);
}

.service-card p {
  font-size: 0.82rem;
  color: var(--color-text-light);
  line-height: 1.7;
  flex: 1;
  margin-bottom: 20px;
}

.service-card__link {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--color-accent);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: var(--transition);
}
.service-card:hover .service-card__link { letter-spacing: 0.12em; }

/* ============================== CTA BAR ============================== */

.section--cta-bar {
  text-align: center;
  position: relative;
}
.section--cta-bar h2 {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 400;
  margin-bottom: 32px;
  line-height: 1.3;
}
.section--cta-bar h2 strong { color: var(--color-accent-light); }

/* ============================== CONTACT ============================== */

.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 64px;
  align-items: start;
}

.contact__info {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.contact__item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}
.contact__item svg {
  width: 20px;
  height: 20px;
  color: var(--color-accent);
  flex-shrink: 0;
  margin-top: 4px;
}
.contact__item strong {
  display: block;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  margin-bottom: 4px;
}
.contact__item span,
.contact__item a {
  font-size: 0.92rem;
  color: var(--color-text-light);
  line-height: 1.6;
}

.contact-form {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  padding: 40px;
  box-shadow: var(--shadow-sm);
}

.contact-form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 16px 18px;
  border: 1px solid var(--color-border);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  transition: var(--transition);
  background: var(--color-bg);
  color: var(--color-text);
  border-radius: 6px;
  -webkit-appearance: none;
}
.contact-form textarea { margin-bottom: 16px; resize: vertical; }
.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  background: var(--color-white);
  box-shadow: 0 0 0 3px var(--color-accent-subtle);
}
.contact-form .btn { width: 100%; justify-content: center; border-radius: 6px; }

.contact-form__error,
.contact-form__success {
  padding: 14px 18px;
  margin-bottom: 16px;
  font-size: 0.82rem;
  border-radius: 6px;
}
.contact-form__error {
  background: rgba(220, 38, 38, 0.06);
  color: #b91c1c;
  border: 1px solid rgba(220, 38, 38, 0.1);
}
.contact-form__success {
  background: rgba(45, 122, 90, 0.06);
  color: #1e5a40;
  border: 1px solid rgba(45, 122, 90, 0.1);
}

/* ============================== FOOTER ============================== */

.footer {
  background: var(--color-primary);
  color: rgba(255, 255, 255, 0.45);
  padding: 80px 0 0;
}

.footer__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.footer__heading {
  font-family: var(--font-serif);
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--color-white);
}

.footer__text {
  font-size: 0.82rem;
  line-height: 1.8;
}
.footer__text a {
  color: rgba(255, 255, 255, 0.4);
  transition: var(--transition);
}
.footer__text a:hover { color: var(--color-accent-light); }

.footer__bottom {
  text-align: center;
  padding: 28px 0;
  font-size: 0.72rem;
  color: rgba(255, 255, 255, 0.2);
  letter-spacing: 0.06em;
}

/* ============================== PAGE HERO ============================== */

.page-hero {
  padding: 160px 0 80px;
  background: var(--color-primary);
  position: relative;
}

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

.page-hero__title {
  font-family: var(--font-serif);
  font-size: clamp(2.4rem, 4vw, 3.2rem);
  font-weight: 400;
  color: var(--color-white);
  line-height: 1.2;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}
.page-hero__title strong { color: var(--color-accent-light); }

.page-hero__text {
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.45);
  max-width: 520px;
  margin: 20px auto 0;
  font-weight: 300;
}

/* ============================== SERVICE DETAIL ============================== */

.service-detail {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 48px;
  align-items: start;
}

.service-detail__icon {
  width: 72px;
  height: 72px;
  background: var(--color-accent-subtle);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  border-radius: 14px;
}
.service-detail__icon svg { width: 32px; height: 32px; }

.service-detail__title {
  font-family: var(--font-serif);
  font-size: 1.7rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.service-detail__title-sep {
  display: block;
  width: 44px;
  height: 2px;
  background: var(--color-accent);
  margin: 16px 0 20px;
  border-radius: 1px;
}

.service-detail__text p {
  color: var(--color-text-light);
  line-height: 1.9;
  margin-bottom: 28px;
}

.service-detail__list {
  display: grid;
  gap: 12px;
}

.service-detail__list li {
  padding-left: 24px;
  position: relative;
  font-size: 0.9rem;
  color: var(--color-text);
}
.service-detail__list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 11px;
  width: 6px;
  height: 6px;
  background: var(--color-accent);
  border-radius: 1px;
  transform: rotate(45deg);
}

/* ============================== CONTACT PAGE ============================== */

.contact-page__grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 64px;
  align-items: start;
}

.contact__item--large {
  padding: 28px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  transition: var(--transition);
}
.contact__item--large:hover {
  box-shadow: var(--shadow);
  border-color: transparent;
}

.contact-page__map { margin-top: 20px; border-radius: 8px; overflow: hidden; border: 1px solid var(--color-border); }
.contact-page__map iframe { display: block; }

.contact-page__form-title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 28px;
  color: var(--color-primary);
}

/* ============================== RESPONSIVE ============================== */

@media (max-width: 1024px) {
  .services__grid { grid-template-columns: repeat(2, 1fr); }
  .features__grid { grid-template-columns: repeat(2, 1fr); }
  .about__cards { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .header__inner { padding: 0 20px; }

  .nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: var(--color-white);
    flex-direction: column;
    padding: 28px;
    gap: 20px;
    border-bottom: 1px solid var(--color-border);
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
  }
  .nav--open { transform: translateY(0); opacity: 1; pointer-events: auto; }

  .hamburger { display: flex; }
  .hamburger--open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
  .hamburger--open span:nth-child(2) { opacity: 0; }
  .hamburger--open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

  .hero__content { padding: 60px 20px; }
  .hero__stats { gap: 28px; flex-direction: column; }
  .hero__sep { margin: 24px 0; }

  .about__grid, .contact__grid, .contact-page__grid, .footer__grid { grid-template-columns: 1fr; gap: 48px; }
  .about__cards { grid-template-columns: 1fr; }
  .services__grid, .features__grid { grid-template-columns: 1fr; }

  .service-detail { grid-template-columns: 1fr; text-align: center; }
  .service-detail__icon { margin: 0 auto; }
  .service-detail__title-sep { margin: 16px auto 20px; }
  .service-detail__list li::before { display: none; }

  .contact-form__row { grid-template-columns: 1fr; }
  .section { padding: 80px 0; }
  .contact-form { padding: 28px; }
  .container { padding: 0 20px; }
  .section__label::before, .section__label::after { display: none; }
}

@media (max-width: 480px) {
  .hero__title { font-size: 2.2rem; }
  .hero__actions { flex-direction: column; }
  .hero__actions .btn { width: 100%; justify-content: center; }
  .services__grid { grid-template-columns: 1fr; }
}