/* ============================================================
   Jacob Digital — style.css
   ============================================================ */

/* --- Fonts -------------------------------------------------- */
@font-face {
  font-family: 'Outfit';
  src: url('../fonts/Outfit-Bold.woff2') format('woff2');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Inter';
  src: url('../fonts/Inter-Regular.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

/* --- Design Tokens ------------------------------------------ */
:root {
  --color-black:    #0A0A0A;
  --color-white:    #FFFFFF;
  --color-blue:     #1586FC;
  --color-slate:    #637080;
  --color-light:    #D1D5DB;
  --color-surface:  #F7F8FA;

  --font-headline:  'Outfit', sans-serif;
  --font-body:      'Inter', sans-serif;

  --spacing-xs:     0.5rem;
  --spacing-sm:     1rem;
  --spacing-md:     2rem;
  --spacing-lg:     4rem;
  --spacing-xl:     8rem;

  --max-width:      1120px;
  --border-radius:  6px;

  --transition:     0.2s ease;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.75;
  color: var(--color-black);
  background: var(--color-white);
}

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

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

/* --- Utility ------------------------------------------------ */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--spacing-md);
}

.section {
  padding-block: 6rem;
}

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

.section__label {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-blue);
  margin-bottom: 0.75rem;
}

.section__title {
  font-family: var(--font-headline);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: var(--color-black);
  margin-bottom: 1.25rem;
}

.section__intro {
  font-size: 1.0625rem;
  color: var(--color-slate);
  max-width: 560px;
  line-height: 1.75;
}

/* --- Header ------------------------------------------------- */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-light);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.header__logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.header__logo img {
  height: 58px;
  width: auto;
}

.nav__list {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  list-style: none;
}

.nav__link {
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--color-black);
  opacity: 0.75;
  transition: opacity var(--transition), color var(--transition);
}

.nav__link:hover,
.nav__link:focus-visible {
  opacity: 1;
  color: var(--color-blue);
  outline: 2px solid var(--color-blue);
  outline-offset: 3px;
  border-radius: 2px;
}

.nav__cta {
  display: inline-flex;
  align-items: center;
  padding: 0.5rem 1.125rem;
  background: var(--color-blue);
  color: var(--color-white);
  border-radius: var(--border-radius);
  font-size: 0.9375rem;
  opacity: 1;
  transition: background var(--transition), transform var(--transition);
}

.nav__cta:hover,
.nav__cta:focus-visible {
  background: #0e70d9;
  transform: translateY(-1px);
  color: var(--color-white);
  outline: 2px solid var(--color-blue);
  outline-offset: 3px;
}

.nav__cta:active {
  transform: translateY(0);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
  border-radius: 4px;
  transition: background var(--transition);
}

.hamburger:hover {
  background: var(--color-surface);
}

.hamburger__line {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-black);
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.hamburger.is-open .hamburger__line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.hamburger.is-open .hamburger__line:nth-child(2) {
  opacity: 0;
}
.hamburger.is-open .hamburger__line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile nav */
.nav--mobile {
  display: none;
  flex-direction: column;
  gap: 0;
  background: var(--color-white);
  border-top: 1px solid var(--color-light);
  padding: var(--spacing-sm) 0;
}

.nav--mobile.is-open {
  display: flex;
}

.nav--mobile .nav__list {
  flex-direction: column;
  align-items: flex-start;
  gap: 0;
  padding-inline: var(--spacing-md);
}

.nav--mobile .nav__link {
  display: block;
  padding: 0.75rem 0;
  font-size: 1rem;
  border-bottom: 1px solid var(--color-surface);
  width: 100%;
  opacity: 1;
}

.nav--mobile .nav__cta {
  margin-top: var(--spacing-sm);
  align-self: flex-start;
}

/* --- Hero --------------------------------------------------- */
.hero {
  position: relative;
  padding-block: 7rem 6rem;
  overflow: hidden;
}

/* WebGL shader canvas background */
.hero__canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
  display: block;
}

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

.hero__inner {
  position: relative;
  max-width: 720px;
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8125rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-slate);
  margin-bottom: 1.5rem;
}

.hero__eyebrow::before {
  content: '';
  display: block;
  width: 20px;
  height: 2px;
  background: var(--color-blue);
  border-radius: 2px;
}

.hero__title {
  font-family: var(--font-headline);
  font-size: clamp(2.25rem, 5vw, 3.75rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
  color: var(--color-black);
  margin-bottom: 1.75rem;
}

.hero__title em {
  font-style: normal;
  color: var(--color-blue);
}

.hero__text {
  font-size: 1.125rem;
  color: var(--color-slate);
  line-height: 1.75;
  max-width: 580px;
  margin-bottom: 2.5rem;
}

.hero__actions {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  border-radius: var(--border-radius);
  transition: background var(--transition), transform var(--transition), color var(--transition);
  cursor: pointer;
  border: none;
}

.btn--primary {
  padding: 0.875rem 1.75rem;
  background: var(--color-blue);
  color: var(--color-white);
  font-weight: 600;
}

.btn--primary:hover,
.btn--primary:focus-visible {
  background: #0e70d9;
  transform: translateY(-2px);
  outline: 2px solid var(--color-blue);
  outline-offset: 3px;
}

.btn--primary:active {
  transform: translateY(0);
}

.btn--text {
  padding: 0;
  background: none;
  color: var(--color-black);
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-color: var(--color-light);
  transition: text-decoration-color var(--transition), color var(--transition);
}

.btn--text:hover,
.btn--text:focus-visible {
  color: var(--color-blue);
  text-decoration-color: var(--color-blue);
  outline: 2px solid var(--color-blue);
  outline-offset: 3px;
  border-radius: 2px;
  transform: none;
}

/* --- Leistungen --------------------------------------------- */
.leistungen__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 3rem;
}

.card {
  background: var(--color-white);
  border: 1px solid var(--color-light);
  border-radius: calc(var(--border-radius) + 2px);
  padding: 2rem 1.75rem;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.card:hover {
  border-color: rgba(21, 134, 252, 0.3);
  box-shadow: 0 4px 24px rgba(21, 134, 252, 0.08);
}

.card__icon {
  width: 40px;
  height: 40px;
  margin-bottom: 1.25rem;
  color: var(--color-blue);
}

.card__title {
  font-family: var(--font-headline);
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--color-black);
  margin-bottom: 0.75rem;
}

.card__text {
  font-size: 0.9375rem;
  color: var(--color-slate);
  line-height: 1.75;
}

.card__example {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--color-surface);
  font-size: 0.875rem;
  color: var(--color-slate);
}

.card__example strong {
  color: var(--color-black);
  font-weight: 400;
  display: block;
  margin-bottom: 0.25rem;
  font-size: 0.8125rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* --- Vorgehen ----------------------------------------------- */
.vorgehen__steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  margin-top: 3rem;
  position: relative;
}

.vorgehen__steps::before {
  content: '';
  position: absolute;
  top: 1.5rem;
  left: calc(12.5% + 1.5rem);
  right: calc(12.5% + 1.5rem);
  height: 1px;
  background: var(--color-light);
}

.step {
  padding: 0 1.5rem 0 0;
  position: relative;
}

.step__number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  border: 1px solid var(--color-light);
  background: var(--color-white);
  font-family: var(--font-headline);
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-blue);
  margin-bottom: 1.25rem;
  position: relative;
  z-index: 1;
}

.step__title {
  font-family: var(--font-headline);
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-black);
  margin-bottom: 0.5rem;
}

.step__text {
  font-size: 0.9375rem;
  color: var(--color-slate);
  line-height: 1.65;
}

/* --- Über mich --------------------------------------------- */
.ueber__grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 5rem;
  align-items: center;
  margin-top: 1rem;
}

.ueber__image-wrap {
  position: relative;
}

.ueber__image {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  object-position: top center;
  border-radius: calc(var(--border-radius) + 2px);
  border: 1px solid var(--color-light);
}

.ueber__text h2 {
  font-family: var(--font-headline);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-black);
  margin-bottom: 1.5rem;
}

.ueber__text p {
  font-size: 1rem;
  color: var(--color-slate);
  line-height: 1.75;
  margin-bottom: 1.125rem;
}

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

.ueber__text strong {
  color: var(--color-black);
  font-weight: 400;
}

/* --- Projekte ---------------------------------------------- */
.projekte__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 3rem;
}

.projekt-card {
  background: var(--color-white);
  border: 1px solid var(--color-light);
  border-radius: calc(var(--border-radius) + 2px);
  padding: 1.75rem;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.projekt-card:hover {
  border-color: rgba(21, 134, 252, 0.25);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

.projekt-card__badge {
  display: inline-block;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-blue);
  background: rgba(21, 134, 252, 0.08);
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  margin-bottom: 1.25rem;
}

.projekt-card__block {
  margin-bottom: 1rem;
}

.projekt-card__block:last-child {
  margin-bottom: 0;
}

.projekt-card__label {
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-slate);
  font-weight: 400;
  margin-bottom: 0.35rem;
}

.projekt-card__value {
  font-size: 0.9375rem;
  color: var(--color-black);
  line-height: 1.65;
}

.divider {
  height: 1px;
  background: var(--color-surface);
  margin-block: 1rem;
}

/* --- Kontakt ----------------------------------------------- */
.kontakt__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: start;
}

.kontakt__left h2 {
  font-family: var(--font-headline);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-black);
  margin-bottom: 1rem;
}

.kontakt__left p {
  font-size: 1rem;
  color: var(--color-slate);
  line-height: 1.75;
  margin-bottom: 1.75rem;
}

.kontakt__email {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.0625rem;
  color: var(--color-blue);
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-color: rgba(21, 134, 252, 0.4);
  transition: text-decoration-color var(--transition);
}

.kontakt__email:hover {
  text-decoration-color: var(--color-blue);
}

/* Contact form */
.form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.form__group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form__label {
  font-size: 0.875rem;
  color: var(--color-slate);
}

.form__input,
.form__textarea {
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--color-black);
  background: var(--color-white);
  border: 1px solid var(--color-light);
  border-radius: var(--border-radius);
  padding: 0.75rem 1rem;
  width: 100%;
  transition: border-color var(--transition), box-shadow var(--transition);
  appearance: none;
  outline: none;
}

.form__input:focus,
.form__textarea:focus {
  border-color: var(--color-blue);
  box-shadow: 0 0 0 3px rgba(21, 134, 252, 0.12);
}

.form__textarea {
  resize: vertical;
  min-height: 130px;
}

.form__note {
  font-size: 0.8125rem;
  color: var(--color-slate);
  line-height: 1.65;
}

.form__submit {
  width: 100%;
  padding: 0.875rem;
  background: var(--color-blue);
  color: var(--color-white);
  border: none;
  border-radius: var(--border-radius);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
}

.form__submit:hover,
.form__submit:focus-visible {
  background: #0e70d9;
  transform: translateY(-1px);
  outline: 2px solid var(--color-blue);
  outline-offset: 3px;
}

.form__submit:active {
  transform: translateY(0);
}

/* --- Footer ------------------------------------------------- */
.footer {
  background: var(--color-surface);
  border-top: 1px solid var(--color-light);
  color: var(--color-slate);
  padding-block: 3rem 2.5rem;
}

.footer__inner {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--spacing-md);
  margin-bottom: 2.5rem;
}

.footer__logo img {
  height: 48px;
  width: auto;
  margin-bottom: 0.75rem;
}

.footer__brand p {
  font-size: 0.875rem;
  line-height: 1.65;
  color: var(--color-slate);
}

.footer__brand a {
  color: var(--color-slate);
  transition: color var(--transition);
}

.footer__brand a:hover {
  color: var(--color-blue);
}

.footer__links {
  display: flex;
  gap: 1.25rem;
  align-items: center;
}

.footer__links a {
  font-size: 0.875rem;
  color: var(--color-slate);
  transition: color var(--transition);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 44px;
  padding: 0 0.5rem;
  margin: -0.5rem 0;
}

.footer__links a:hover {
  color: var(--color-blue);
}

.footer__links a svg {
  display: block;
}

.footer__bottom {
  border-top: 1px solid var(--color-light);
  padding-top: 1.75rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer__copy {
  font-size: 0.8125rem;
  color: var(--color-slate);
}

/* --- Responsive -------------------------------------------- */
@media (max-width: 1024px) {
  .leistungen__grid {
    grid-template-columns: 1fr 1fr;
  }

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

  .vorgehen__steps {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }

  .vorgehen__steps::before {
    display: none;
  }

  .ueber__grid {
    gap: 3rem;
  }

  .kontakt__inner {
    gap: 3rem;
  }
}

@media (max-width: 768px) {
  .section {
    padding-block: 4rem;
  }

  .hero {
    padding-block: 2.5rem 4rem;
  }

  /* Show hamburger, hide desktop nav */
  .hamburger {
    display: flex;
  }

  .nav--desktop {
    display: none;
  }

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

  .vorgehen__steps {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

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

  .ueber__grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .ueber__image {
    aspect-ratio: 3 / 2;
  }

  .kontakt__inner {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .footer__inner {
    flex-direction: column;
    gap: 1.5rem;
  }

  .footer__bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }

  .hero__actions {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 480px) {
  .container {
    padding-inline: 1.25rem;
  }

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