/* ==========================================================================
   Erik Pohle – Portfolio Website
   ========================================================================== */

:root {
  --bg: #0a0e14;
  --bg-soft: #0d1219;
  --surface: #141b25;
  --surface-hover: #1b2432;
  --border: #232e3d;
  --text: #eef2f6;
  --text-dim: #a7b2c0;
  --text-faint: #6b7688;
  --accent: #35e0c2;
  --accent-2: #5b8cff;
  --accent-soft: rgba(53, 224, 194, 0.12);
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 8px;
  --shadow: 0 20px 50px -20px rgba(0, 0, 0, 0.6);
  --max-width: 1120px;
  --nav-height: 72px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

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

ul {
  list-style: none;
}

button {
  font: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

section {
  padding: 110px 0;
  position: relative;
}

.section-head {
  margin-bottom: 56px;
  text-align: center;
}

.eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}

.section-head h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.01em;
}

.section-sub {
  color: var(--text-dim);
  max-width: 560px;
  margin: 14px auto 0;
}

/* Background texture */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    radial-gradient(circle at 15% 20%, rgba(53, 224, 194, 0.07), transparent 45%),
    radial-gradient(circle at 85% 0%, rgba(91, 140, 255, 0.08), transparent 40%),
    radial-gradient(circle at 50% 100%, rgba(53, 224, 194, 0.05), transparent 50%);
}

/* ==========================================================================
   Nav
   ========================================================================== */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  z-index: 100;
  background: rgba(10, 14, 20, 0.72);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s ease;
}

.nav.scrolled {
  border-bottom-color: var(--border);
}

.nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}

.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: #06110f;
  font-size: 0.95rem;
}

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

.nav-links a {
  font-size: 0.94rem;
  color: var(--text-dim);
  font-weight: 500;
  transition: color 0.2s ease;
  position: relative;
}

.nav-links a:hover {
  color: var(--text);
}

.nav-cta {
  padding: 9px 18px;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text) !important;
  font-size: 0.88rem !important;
  font-weight: 600 !important;
  transition: background 0.2s ease, border-color 0.2s ease;
}

.nav-cta:hover {
  background: var(--surface-hover);
  border-color: var(--accent);
}

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  align-items: center;
  justify-content: center;
  background: var(--surface);
  border: 1px solid var(--border);
}

.nav-toggle svg {
  width: 20px;
  height: 20px;
}

/* ==========================================================================
   Hero
   ========================================================================== */

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-height);
}

.hero .container {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
}

.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px;
  border-radius: 999px;
  background: var(--accent-soft);
  border: 1px solid rgba(53, 224, 194, 0.25);
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 22px;
}

.hero-kicker .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px rgba(53, 224, 194, 0.18);
}

.hero h1 {
  font-size: clamp(2.3rem, 5.4vw, 3.6rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin-bottom: 22px;
}

.hero h1 .grad {
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero p {
  color: var(--text-dim);
  font-size: 1.08rem;
  max-width: 480px;
  margin-bottom: 34px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 24px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.btn-primary {
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  color: #061014;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px -10px rgba(53, 224, 194, 0.5);
}

.btn-ghost {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
}

.btn-ghost:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.hero-tags {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 36px;
}

.tag {
  padding: 7px 14px;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--border);
  font-size: 0.82rem;
  color: var(--text-dim);
}

.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
}

.hero-photo-wrap {
  position: relative;
  width: 100%;
  max-width: 360px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  aspect-ratio: 2 / 3;
}

.hero-photo-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-photo-wrap::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10, 14, 20, 0.55), transparent 40%);
}

.hero-glow {
  position: absolute;
  width: 340px;
  height: 340px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(53, 224, 194, 0.25), transparent 70%);
  filter: blur(10px);
  z-index: -1;
  top: -40px;
  right: -40px;
}

.scroll-hint {
  position: absolute;
  bottom: 34px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-faint);
  font-size: 0.78rem;
}

.scroll-hint .line {
  width: 1px;
  height: 30px;
  background: linear-gradient(to bottom, var(--text-faint), transparent);
  animation: scrollLine 1.8s ease-in-out infinite;
}

@keyframes scrollLine {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ==========================================================================
   About
   ========================================================================== */

.about {
  background: var(--bg-soft);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.about .container {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 56px;
  align-items: center;
}

.about-text p {
  color: var(--text-dim);
  font-size: 1.08rem;
  margin-bottom: 20px;
}

.about-badges {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.badge-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.badge-card:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
}

.badge-card .icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: var(--accent-soft);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
}

.badge-card .icon svg {
  width: 20px;
  height: 20px;
}

.badge-card h3 {
  font-size: 0.98rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.badge-card p {
  font-size: 0.85rem;
  color: var(--text-faint);
}

/* ==========================================================================
   Timeline (Praktika)
   ========================================================================== */

.timeline {
  position: relative;
  max-width: 780px;
  margin: 0 auto;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 27px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent), var(--border) 90%);
}

.timeline-item {
  position: relative;
  padding-left: 74px;
  margin-bottom: 34px;
}

.timeline-item:last-child {
  margin-bottom: 0;
}

.timeline-dot {
  position: absolute;
  left: 0;
  top: 4px;
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 10px;
  z-index: 1;
}

.timeline-dot img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.timeline-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 22px 26px;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.timeline-card:hover {
  border-color: var(--accent);
  transform: translateX(4px);
}

.timeline-date {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 10px;
}

.timeline-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.timeline-card p {
  color: var(--text-dim);
  font-size: 0.95rem;
}

/* ==========================================================================
   Projects
   ========================================================================== */

.project-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 26px;
}

.project-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.project-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
}

.project-cover {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  cursor: pointer;
}

.project-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.project-card:hover .project-cover img {
  transform: scale(1.06);
}

.project-cover::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(6, 9, 13, 0.75), transparent 55%);
}

.project-photo-count {
  position: absolute;
  bottom: 12px;
  right: 12px;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(10, 14, 20, 0.7);
  backdrop-filter: blur(6px);
  border: 1px solid var(--border);
  font-size: 0.78rem;
  font-weight: 600;
  z-index: 1;
}

.project-photo-count svg {
  width: 14px;
  height: 14px;
}

.project-body {
  padding: 24px 26px 28px;
}

.project-body h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.project-body p {
  color: var(--text-dim);
  font-size: 0.95rem;
  margin-bottom: 18px;
}

.project-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--accent);
}

.project-link svg {
  width: 15px;
  height: 15px;
  transition: transform 0.2s ease;
}

.project-card:hover .project-link svg {
  transform: translateX(3px);
}

/* ==========================================================================
   Lightbox
   ========================================================================== */

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(6, 9, 13, 0.92);
  backdrop-filter: blur(6px);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
}

.lightbox.open {
  display: flex;
}

.lightbox-inner {
  position: relative;
  width: 100%;
  max-width: 900px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.lightbox-stage {
  position: relative;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lightbox-stage img {
  max-height: 74vh;
  max-width: 100%;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.lightbox-caption {
  margin-top: 18px;
  color: var(--text-dim);
  font-size: 0.9rem;
  text-align: center;
}

.lightbox-counter {
  color: var(--text-faint);
  font-size: 0.8rem;
  margin-top: 4px;
}

.lightbox-close,
.lightbox-nav {
  position: absolute;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--surface);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s ease, border-color 0.2s ease;
}

.lightbox-close:hover,
.lightbox-nav:hover {
  border-color: var(--accent);
  background: var(--surface-hover);
}

.lightbox-close {
  top: -56px;
  right: 0;
}

.lightbox-nav svg,
.lightbox-close svg {
  width: 18px;
  height: 18px;
}

.lightbox-prev {
  left: 8px;
  top: 50%;
  transform: translateY(-50%);
}

.lightbox-next {
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
}

/* ==========================================================================
   Contact
   ========================================================================== */

.contact {
  background: var(--bg-soft);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  text-align: center;
}

.contact-card {
  max-width: 560px;
  margin: 0 auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 46px 40px;
}

.contact-card .icon {
  width: 54px;
  height: 54px;
  border-radius: 14px;
  background: var(--accent-soft);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
}

.contact-card .icon svg {
  width: 26px;
  height: 26px;
}

.contact-card h2 {
  font-size: 1.5rem;
  margin-bottom: 10px;
}

.contact-card p {
  color: var(--text-dim);
  margin-bottom: 26px;
}

/* ==========================================================================
   Footer
   ========================================================================== */

footer {
  padding: 40px 0;
}

footer .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-links {
  display: flex;
  gap: 22px;
}

.footer-links a {
  font-size: 0.85rem;
  color: var(--text-faint);
  transition: color 0.2s ease;
}

.footer-links a:hover {
  color: var(--text);
}

.footer-copy {
  font-size: 0.85rem;
  color: var(--text-faint);
}

/* ==========================================================================
   Reveal-on-scroll
   ========================================================================== */

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================================
   Simple legal pages
   ========================================================================== */

.legal {
  padding-top: calc(var(--nav-height) + 70px);
  padding-bottom: 100px;
  min-height: 100vh;
}

.legal .container {
  max-width: 760px;
}

.legal h1 {
  font-size: 2rem;
  margin-bottom: 28px;
}

.legal h2 {
  font-size: 1.15rem;
  margin: 30px 0 10px;
}

.legal p, .legal li {
  color: var(--text-dim);
  margin-bottom: 12px;
}

.legal a {
  color: var(--accent);
}

.legal-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--accent);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 30px;
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 980px) {
  .hero .container,
  .about .container {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    order: -1;
  }

  .hero-photo-wrap {
    max-width: 260px;
    margin: 0 auto;
  }

  .about-text {
    order: 1;
  }

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

@media (max-width: 720px) {
  section {
    padding: 76px 0;
  }

  .nav-links {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: #0b1017;
    box-shadow: 0 12px 30px -10px rgba(0, 0, 0, 0.6);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 8px 24px 20px;
    transform: translateY(-130%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.25s ease, opacity 0.25s ease;
  }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-links a {
    width: 100%;
    padding: 14px 0;
    border-bottom: 1px solid var(--border);
  }

  .nav-links a:last-child {
    border-bottom: none;
  }

  .nav-links a.nav-cta {
    display: inline-flex;
    margin-top: 14px;
    width: auto;
  }

  .nav-toggle {
    display: flex;
  }

  .about-badges {
    grid-template-columns: 1fr 1fr;
  }

  .timeline::before {
    left: 21px;
  }

  .timeline-item {
    padding-left: 58px;
  }

  .timeline-dot {
    width: 44px;
    height: 44px;
    padding: 8px;
  }

  .contact-card {
    padding: 34px 22px;
  }

  .scroll-hint {
    display: none;
  }

  .hero {
    min-height: auto;
    padding-bottom: 60px;
  }
}

@media (max-width: 460px) {
  .about-badges {
    grid-template-columns: 1fr;
  }
}