/* ===== HEADER ===== */
.header {
  position: sticky;
  top: 0;
  z-index: 200;
  background-color: var(--color-bg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-sm);
}

.header_nav {
  margin-left: auto;
  margin-right: clamp(24px, 6vw, 120px);
}

.header_nav ul {
  display: flex;
  gap: var(--space-md);
  font-size: 22px;
}

.header_nav a {
  transition: color var(--transition), text-shadow var(--transition);
}

.header_nav a:hover {
  color: var(--color-accent-green);
  text-shadow: 0 0 8px var(--color-accent-green);
}

.header_logo {
  font-size: 40px;
  font-weight: 600;
}

.header_logo .accent {
  color: var(--color-accent-green);
}

/* Language toggle buttons */
.header_lang {
  display: flex;
  gap: var(--space-xs);
}

.lang-btn {
  padding: 0.25rem 0.75rem;
  border: 1px solid var(--color-accent-green);
  border-radius: var(--radius);
  background: transparent;
  color: var(--color-text);
  font-size: var(--fs-small);
  font-weight: 600;
  transition: color var(--transition), text-shadow var(--transition);
}

.lang-btn--active {
  background-color: var(--color-accent-green);
  color: #06120a;
  border-color: var(--color-accent-green);
}

.lang-btn:not(.lang-btn--active):hover {
  color: var(--color-accent-purple);
  text-shadow: 0 0 8px var(--color-accent-purple);
}

/* Shared layout container, used by every section */
.container {
  max-width: 1440px;
  margin-inline: auto;
  padding-inline: var(--space-md);
}

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

/* ===== HERO ===== */
.hero {
  min-height: 60vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  overflow: hidden;
  background-image:
    url("../images/decorative/shadow-purple-about.png"),
    url("../images/decorative/shadow-cyan-hero.png.svg");
  background-repeat: no-repeat, no-repeat;
  background-position: left top, right top;
  background-size: 700px, 250px;
  margin-bottom: -40px;
}



.hero_content {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-lg);
  margin: clamp(24px, 6vw, 100px);
}

.hero_text {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-top: 60px;
}

.hero_heading-row {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.hero_text h1 {
  font-size: clamp(32px, 4.3vw, 62px);
  font-weight: 700;
  line-height: 1.1;
}

.hero_heading-row {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.hero_eyebrow {
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  font-size: 45px;
  font-weight: 600;
  color: #fff;
}
html[lang="de"] .hero_eyebrow {
  font-size: 50px;
}

.hero_name-block {
  display: flex;
  flex-direction: column;
}


.hero_role {
  color: var(--color-accent-purple);
  font-size: clamp(32px, 4.3vw, 62px);
  font-weight: 400;
  margin: 0;
}

.hero_footer {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 120px;
}

.hero_socials {
  display: flex;
  align-items: center;
  gap: 40px;
}

.hero_socials img {
  width: 32px;
  height: 32px;
}

.hero_email {
  color: var(--color-text-muted);
  font-size: var(--fs-small);
  margin-left: var(--space-xs);
}

.hero_scroll {
  writing-mode: vertical-rl;
  color: var(--color-text-muted);
  font-size: 22px;
  font-weight: 600;
  padding-right: 50px;
  pointer-events: none;
}

.hero_scroll-arrow {
  writing-mode: horizontal-tb;
  display: inline-block;
}

.hero_divider {
  display: inline-block;
  width: 90px;
  height: 3px;
  background-color: var(--color-accent-green);
}

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

/* ===== SECTION (SHARED) ===== */
.section {
  padding-block: var(--space-xl);
}

.section_title {
  font-size: clamp(40px, 6vw, 90px);
  line-height: 1;
  margin-bottom: var(--space-md);
}

html[lang="de"] .section_title {
  font-size: clamp(36px, 5.4vw, 80px);
}

/* ===== END SECTION (SHARED) ===== */

/* ===== BUTTONS ===== */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  font-weight: 500;
  transition: transform var(--transition);
  font-size: 25px;
}

.btn--primary {
  background-color: var(--color-accent-green);
  color: #fff;
  margin-top: 50px;
  
}

.btn--primary:hover {
  background-color: var(--color-accent-purple);
  transform: scale(1.05);
}

.btn--secondary {
  background-color: var(--color-accent-purple);
  color: #fff;
}

.btn:hover {
  transform: translateY(-2px);
}

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

/* ===== PORTFOLIO ===== */
.portfolio {
  position: relative;
  overflow: hidden;
}

.portfolio_blob {
  position: absolute;
  z-index: 0;
  max-width: none;
  pointer-events: none;
}

.portfolio_blob--right {
  top: 0;
  right: 0;
  height: 100%;
  width: auto;
}

.portfolio_blob--left {
  bottom: 0;
  left: 0;
  height: 100%;
  width: auto;
}

.portfolio_heading-row {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-xs);
    padding-left: 30px;
}

.portfolio_divider {
  display: inline-block;
  width:80px;
  height: 4px;
  background-color: var(--color-accent-purple);
  margin-top: 50px;
}

.portfolio_subtitle {
  position: relative;
  z-index: 1;
  color: var(--color-text-muted);
  margin-bottom: var(--space-lg);
  max-width: 500px;
  padding-left: 120px;
}

.portfolio_grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
  max-width: 1200px;
  margin-inline: auto;
}

.project-card {
  border: 2px solid var(--color-accent-green);
  border-radius: var(--radius);
  overflow: hidden;
  background-color: var(--color-bg-alt);
  position: relative;
}

.project-card_media {
  
  overflow: hidden;
  font-size: 20px;
}

.project-card_preview {
  width: 100%;
  height: 50%;
  object-fit: cover;
  display: block;
}

.project-card_links {
  position: absolute;
  top: var(--space-md);
  left: 0;
  width: 100%;
  z-index: 2;
  display: flex;
  justify-content: center;
  gap: var(--space-sm);
  opacity: 0;
  transform: translateY(-10px);
  transition: opacity var(--transition), transform var(--transition);
}

.project-card:hover .project-card_links {
  opacity: 1;
  transform: translateY(0);
}

.btn--outline {
  background: transparent;
  border: 1px solid var(--color-accent-cyan);
  color: #fff;
}
.project-card_info {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  z-index: 1;
  background-color: #fff;
  color: #06120a;
  padding: var(--space-md);
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--transition), transform var(--transition);
  pointer-events: none;
  box-sizing: border-box;
  border-radius: 7px;
}

.project-card:hover .project-card_info {
  opacity: 1;
  transform: translateY(0);
}

.project-card_info h3 {
  color: var(--color-accent-purple);
  margin-bottom: var(--space-xs);
  font-size: clamp(14px, 4vw, 24px);
}

.project-card_info p {
  font-size: clamp(12px, 3vw, 16px);
}

.tech-tags {
  color: var(--color-accent-green);
  font-size: var(--fs-small);
  margin-top: var(--space-xs);
}

/* ===== END PORTFOLIO ===== */

/* ===== CONTACT FORM ===== */
.form-group {
  margin-bottom: var(--space-sm);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.75rem;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-accent-purple);
  border-radius: var(--radius);
  color: var(--color-text);
  font-family: inherit;
}

.form-group textarea {
  min-height: 120px;
  resize: vertical;
}

/* Webkit autofill fix: keep dark background and light text */
.form-group input:-webkit-autofill,
.form-group input:-webkit-autofill:hover,
.form-group input:-webkit-autofill:focus {
  -webkit-text-fill-color: var(--color-text);
  -webkit-box-shadow: 0 0 0 1000px var(--color-bg-alt) inset;
  caret-color: var(--color-text);
}

.form-group input.is-invalid,
.form-group textarea.is-invalid {
  border-color: var(--color-error);
}

.form-group_error {
  visibility: hidden;
  color: var(--color-error);
  font-size: var(--fs-small);
  margin-top: var(--space-xs);
  min-height: 1.2em;
}

.form-group_error.is-visible {
  visibility: visible;
}

.form-group--checkbox {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: var(--space-xs);
  font-size: var(--fs-body);
}
.form-group--checkbox label {
  flex: 1;
}
.form-group--checkbox .form-group_error {
  flex-basis: 100%;
  margin-top: 0;
}


.form-group--checkbox input {
  width: auto;
  accent-color: var(--color-accent-green);
  margin-top: 0.2rem;
  flex-shrink: 0;
}

.contact_policy-link {
  color: var(--color-accent-purple);
  text-decoration: underline;
}

.form-group--checkbox input {
  appearance: none;
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  border: 2px solid var(--color-accent-green);
  border-radius: 4px;
  background-color: transparent;
  margin-top: 0.2rem;
  flex-shrink: 0;
  cursor: pointer;
  position: relative;
}

.form-group--checkbox input:checked {
  background-color: var(--color-accent-green);
}

.form-group--checkbox input:checked::after {
  content: "";
  position: absolute;
  left: 6px;
  top: 3px;
  width: 6px;
  height: 11px;
  border: solid #06120a;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.contact_submit:disabled {
  background-color: var(--color-border);
  opacity: 1;
  cursor: not-allowed;
  transform: none;
  cursor: pointer;
}
.contact_form {
  padding-right: 75px;
}

.contact_feedback {
  margin-top: var(--space-sm);
  font-weight: 600;
}

.contact_feedback.is-success {
  color: var(--color-success);
}

.contact_feedback.is-error {
  color: var(--color-error);
}

/* ===== END CONTACT FORM ===== */

/* ===== FOOTER ===== */
.footer {
  padding-block: var(--space-lg);
  border-top: 4px solid var(--color-accent-green);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer_logo {
  font-size: 40px;
  font-weight: 700;
}

.footer_logo .accent {
  color: var(--color-accent-green);
}

.footer_legal-link {
  display: block;
  color: white;
  font-size: 20px;
  font-weight: 400;
}

.footer_copy {
  font-size: 25px;
}

.footer_socials {
  display: flex;
  gap: var(--space-md);
}

.footer_socials img {
  width: 36px;
  height: 36px;
  transition: transform 0.5s ease;
}

.footer_socials img:hover {
  transform: translateY(-10px);
}

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

/* ===== ABOUT ===== */
.about {
  position: relative;
}

.about_grid {
  display: flex;
  align-items: center;
  gap: clamp(16px, 8vw, 135px);
}

.about_text {
  max-width: 560px;
  position: relative;
  z-index: 1;
  margin-left: clamp(0px, 5vw, 90px);
  margin-bottom: 10px;
}

.about_intro {
  margin-bottom: var(--space-sm);
}

.about_points {
  margin-top: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.about_points li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
}

.about_points img {
  width: 60px;
  height: 60px;
  flex-shrink: 0;
  margin-top: 0.2rem;
}

.about_photo-wrap {
  position: relative;
  flex-shrink: 0;
  width: min(750px, 42vw);
  max-width: none;
  margin-top: 200px;
}

.about_glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100%;
  max-width: none;
  z-index: 0;
  pointer-events: none;
}

.about_photo {
  position: relative;
  z-index: 1;
  width: 100%;
  object-fit: contain;
}

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

/* ===== SKILLS ===== */
.skills {
  position: relative;
  background-color: #141d2f;

}

.about_wave {
  position: absolute;
  top: calc(100% - 180px);
  left: 0;
  width: 100%;
  z-index: 2;
  pointer-events: none;
}

.skills_grid {
  position: relative;
  z-index: 3;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  padding-top: 0px;
  margin-left: clamp(0px, 6vw, 90px);
}

.skills_icons {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg) var(--space-md);
  margin-top: -300px;
}

.skill-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
  text-align: center;
}

.skill-item--new-row {
  grid-column-start: 1;
}

.skill-item img {
  width: 60px;
  height: 60px;
  transition: transform 0.5s ease;
}

.skill-item img:hover {
  transform: translateY(-10px);
}

.skill-item span {
  font-weight: 700;
  font-size: var(--fs-small);
}
.skill-item--tooltip {
  position: relative;
}

.skill-item_tooltip {
  position: absolute;
  bottom: calc(100% + var(--space-xs));
  left: 50%;
  transform: translateX(-50%);
  width: 196px;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
  z-index: 2;
}

.skill-item--tooltip:hover .skill-item_tooltip {
  opacity: 1;
}

.skills_text {
  max-width: 480px;
}

.skills_heading-row {
  position: relative;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
  margin-left: clamp(480px, calc(100vw - 560px), 950px);
}

.skills_divider {
 
  flex-grow: 1;
  height: 3px;
  background-color: var(--color-accent-cyan);
  margin-top: 50px;
}

.contact_heading-row {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
  
}

.contact_divider {
 
  flex-grow: 1;
  height: 2px;
  background-color: var(--color-accent-green);
  margin-top: 50px;
}

.skills_question {
  margin-top: var(--space-md);
  font-size: var(--fs-h3);
  font-weight: 700;
}

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

/* ===== END SKILLS ===== */

/* Background color spanning Skills section through page end */
.page-bottom {
  background-color: #141d2f;
  margin-inline: auto;
  padding-inline: var(--space-md);
}

/* ===== REFERENCES / TESTIMONIALS ===== */
.references {

  margin-top: 75px;
}

.testimonial {
  position: relative;
  display: flex;
  align-items: center;
  padding: var(--space-lg);
  padding-right: 0;
}

.testimonial_quote-icon {
  position: absolute;
  top: var(--space-md);
  left: var(--space-md);
  width: 48px;
  height: auto;
}

.testimonial_box {
  flex-grow: 6;
  border: 4px solid var(--color-accent-purple);
  border-radius: 24px;
  padding: var(--space-lg) var(--space-lg) var(--space-lg) calc(var(--space-lg) * 2);
  min-height: 140px;
  height: 180px;
  display: flex;
  align-items: center;
  margin-right: var(--space-lg);
}

.testimonial_slides {
  position: relative;
  width: 100%;
  display: grid;
}

.testimonial_slide {
  grid-area: 1 / 1;
  visibility: hidden;
}

.testimonial_slide.is-active {
  visibility: visible;
}

.testimonial_author-row {
  display: flex;
  align-items: center;
  margin-top: var(--space-md);
}

 .testimonial_avatar-divider {
    display: inline-block;
    flex-grow: 1;
    height: 3px;
    background-color: var(--color-accent-green);
    display: none;}

.testimonial_author {
    color: var(--color-text-muted);
    font-size: var(--fs-body);
    white-space: nowrap;
    padding-left: 20px;
}

.testimonial_avatar {
  flex-shrink: 0;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  border: 3px solid var(--color-accent-green);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: var(--fs-h3);
  background-color: var(--color-bg-alt);
}

.testimonial_avatar-divider {
  display: inline-block;
  flex-grow: 1;
  height: 3px;
  background-color: var(--color-accent-green);
}

.testimonial_divider {
  flex-grow: 1;
  max-width: 240px;
  height: 1px;
  background-color: var(--color-accent-cyan);
}

.testimonial_nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  padding-bottom: var(--space-lg);
}

.testimonial_arrow {
  background: transparent;
  color: var(--color-accent-purple);
  font-size: 40px;
  font-weight: 700;
  line-height: 1;
  padding: 0;
}

.testimonial_dots {
  display: flex;
  gap: var(--space-xs);
}

.testimonial_dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: var(--color-border);
  padding: 0;
}

.testimonial_dot.is-active {
  background-color: var(--color-accent-cyan);
}

/* ===== END REFERENCES / TESTIMONIALS ===== */

/* ===== CONTACT ===== */
.contact {
  position: relative;
  overflow: hidden;
}

.contact_shadow {
  position: absolute;
  top: 0;
  right: 0;
  height: 100%;
  width: auto;
  z-index: 0;
  pointer-events: none;
}

.contact_heading-row {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
  padding-left: 30%;
}

.contact_divider {
  flex-grow: 1;
  height: 2px;
  background-color: var(--color-accent-green);
  margin-top: 50px;
}

.contact_grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}

.contact_intro-heading {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.contact_intro-divider {
  width: 40px;
  height: 4px;
  background-color: var(--color-accent-cyan);
}

.contact_intro-heading h3 {
  font-size: 40px;
}

.contact_intro p {
  color: var(--color-text-muted);
  font-size: 1.125rem;
  margin-bottom: var(--space-sm);
  margin-left: calc(40px + var(--space-sm));
  max-width: 320px;
}

.contact_scroll-top {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  font-size: 24px;
  margin-left: auto;
  margin-right: var(--space-lg);
  margin-top: var(--space-md);
  margin-bottom: var(--space-lg);
  border: 2px solid var(--color-border);
  border-radius: 50%;
  color: var(--color-text);
  border-color: white;
}

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

/* ===== LEGAL PAGES (Legal Notice / Privacy Policy) ===== */
.legal_title-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
  margin-inline: calc(var(--space-md) * -1);
  text-align: center;
}

.legal_title.section_title {
  color: var(--color-accent-green);
  font-size: clamp(24px, 8vw, 60px);
  font-weight: 700;
  line-height: 1;
  margin-top:  50px;
  white-space: nowrap;
}

html[lang="de"] .legal_title.section_title {
  font-size: clamp(18px, 6vw, 60px);
}

.legal_divider {
  flex-grow: 1;
  height: 3px;
  background-color: var(--color-accent-purple);
  max-width: 400px;
  margin-top: 30px;
  
}

.legal_content {
  max-width: 800px;
  margin-inline: auto;
  margin-bottom: 75px;
}

.legal_content h2 {
  color: var(--color-accent-purple);
  font-size: var(--fs-h3);
  margin-top: var(--space-lg);
  margin-bottom: var(--space-xs);
}

.legal_content p {
  color: var(--color-text-muted);
  margin-bottom: var(--space-sm);
}

.legal_content ul {
  margin-bottom: var(--space-sm);
  padding-left: var(--space-md);
  list-style: disc;
}

.legal_content li {
  color: var(--color-text-muted);
  margin-bottom: var(--space-xs);
}

.legal_content a {
  color: var(--color-accent-purple);
  text-decoration: underline;
}

.legal_placeholder {
  color: var(--color-accent-cyan);
  font-style: italic;
}
/* ===== END LEGAL PAGES ===== */
.header_burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: transparent;
}

.header_burger span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-text);
}

.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 100;
  background-color: var(--color-bg-alt);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-lg);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}

.mobile-menu.is-open {
  opacity: 1;
  pointer-events: auto;
}

.mobile-menu_nav {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
  font-size: 30px;
}

.mobile-menu_lang {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--fs-body);
  font-weight: 600;
  color: var(--color-text-muted);
}

.mobile-menu_lang-btn {
  background: transparent;
  border: none;
  border-radius: 0;
  padding: 0;
  color: var(--color-text-muted);
  font-size: 30px;
  font-weight: 600;
}

.mobile-menu_lang-btn.lang-btn--active {
  background: transparent;
  color: var(--color-accent-green);
}