/* ═══════════════════════════════════════════════════════════════
   HANNAH GEISSLER — PORTFOLIO
   Central Design Tokens & Global Styles
   Alle Farben, Schriften, Abstände hier anpassen.
   ═══════════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;700;800;900&family=Work+Sans:wght@300;400;500&family=Space+Grotesk:wght@300;400;500;700&display=swap');

/* ──────────────────────────────────────────────
   1. FARBEN
   ────────────────────────────────────────────── */
:root {

  /* Primär-Blau (für CTAs, aktive Nav-Links) */
  --color-primary:               #4059aa;

  /* Tiefes Blau (Headlines, Akzente, Buttons) */
  --color-primary-deep:          #1d3989;

  /* Helles Blau (Hover-Zustände) */
  --color-primary-light:         #3d57a7;

  /* Primär-Container (z.B. Text-Selection-Highlight) */
  --color-primary-container:     #dce1ff;

  /* ── Oberflächen ── */
  --color-surface-white:         #ffffff;   /* Basis-Canvas */
  --color-surface:               #f9f9f9;   /* Leicht getönter Hintergrund */
  --color-surface-low:           #f2f4f4;   /* Sektionswechsel / tonal shift */
  --color-surface-mid:           #ebeeef;   /* Karten-Hintergrund */
  --color-surface-high:          #e4e9ea;
  --color-surface-highest:       #dde4e5;

  /* ── Text ── */
  --color-text:                  #2d3435;   /* Haupt-Textfarbe */
  --color-text-muted:            #596061;   /* Beschreibungen, Fließtext */
  --color-text-subtle:           #757c7d;   /* Hashtags, Labels */
  --color-text-faint:            #acb3b4;   /* Placeholder, deaktiviert */

  /* ── Linien / Borders ── */
  --color-outline:               #757c7d;
  --color-outline-variant:       #acb3b4;

  /* ── Fehler ── */
  --color-error:                 #9e3f4e;
}

/* ──────────────────────────────────────────────
   2. TYPOGRAFIE
   ────────────────────────────────────────────── */
:root {
  /* Schriftfamilien */
  --font-headline:   'Plus Jakarta Sans', sans-serif;  /* Headlines, Logos, CTAs */
  --font-body:       'Work Sans', sans-serif;          /* Fließtext, Beschreibungen */
  --font-label:      'Space Grotesk', sans-serif;      /* Hashtags, Labels, Metadaten */

  /* Schriftgrößen */
  --text-display:    clamp(3.5rem, 9vw, 7rem);
  --text-hero:       clamp(2.8rem, 6vw, 5.5rem);
  --text-h1:         clamp(3rem, 5.5vw, 4.5rem);
  --text-h2:         clamp(1.8rem, 3.5vw, 2.8rem);
  --text-h3-lg:      1.5rem;
  --text-h3:         1.25rem;
  --text-body-lg:    1.05rem;
  --text-body:       1rem;
  --text-body-sm:    0.875rem;
  --text-label:      0.625rem;   /* 10px */
  --text-label-sm:   0.6875rem;  /* 11px */

  /* Letter-Spacing */
  --tracking-display:  0.03em;
  --tracking-headline: 0.05em;
  --tracking-label:    0.45em;
  --tracking-label-md: 0.3em;
  --tracking-widest:   0.35em;
  --tracking-cta:      0.25em;

  /* Zeilenhöhe */
  --leading-tight:   0.88;
  --leading-normal:  1.6;
  --leading-relaxed: 1.7;
}

/* ──────────────────────────────────────────────
   3. ABSTÄNDE (Spacing Scale)
   ────────────────────────────────────────────── */
:root {
  --space-1:    0.25rem;   /*  4px */
  --space-2:    0.5rem;    /*  8px */
  --space-3:    0.75rem;   /* 12px */
  --space-4:    1rem;      /* 16px */
  --space-5:    1.25rem;   /* 20px */
  --space-6:    1.5rem;    /* 24px */
  --space-8:    2rem;      /* 32px */
  --space-10:   2.5rem;    /* 40px */
  --space-12:   3rem;      /* 48px */
  --space-16:   4rem;      /* 64px */
  --space-20:   5rem;      /* 80px */
  --space-24:   6rem;      /* 96px */
  --space-32:   8rem;      /* 128px */
  --space-40:   10rem;     /* 160px */

  /* Seiten-Padding */
  --page-padding-x:  2rem;     /* Seitenränder */
  --page-max-width:  1440px;   /* Maximale Seitenbreite */

  /* Sektions-Abstände */
  --section-py:      10rem;    /* Vertikales Padding pro Sektion */
}

/* ──────────────────────────────────────────────
   4. ANIMATION & ÜBERGÄNGE
   ────────────────────────────────────────────── */
:root {
  --duration-fast:    0.15s;
  --duration-normal:  0.25s;
  --duration-slow:    0.7s;
  --duration-reveal:  0.72s;
  --ease-smooth:      cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-reveal:      cubic-bezier(0.22, 1, 0.36, 1);
  --shadow-whisper:   0px 20px 40px rgba(45, 52, 53, 0.04);
  --shadow-cta:       0px 20px 40px rgba(29, 57, 137, 0.2);
}

/* ──────────────────────────────────────────────
   5. GLOBALE BASIS-STYLES
   ────────────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--color-surface-white);
  font-family: var(--font-body);
  color: var(--color-text);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

::selection {
  background-color: var(--color-primary-container);
  color: var(--color-primary-deep);
}

/* ──────────────────────────────────────────────
   6. NAVIGATION
   ────────────────────────────────────────────── */
.nav-glass {
  background: rgba(255, 255, 255, 0.65);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  box-shadow: var(--shadow-whisper);
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 50;
}

.nav-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-5) var(--page-padding-x);
  max-width: var(--page-max-width);
  margin: 0 auto;
}

.nav-logo {
  font-family: var(--font-headline);
  font-weight: 900;
  font-size: 1.25rem;
  letter-spacing: -0.03em;
  color: var(--color-primary-deep);
  text-transform: uppercase;
  text-decoration: none;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 3rem;
  list-style: none;
}

.nav-link {
  font-family: var(--font-headline);
  font-weight: 700;
  font-size: var(--text-label-sm);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  text-decoration: none;
  transition: color var(--duration-normal);
}

.nav-link:hover {
  color: var(--color-primary-deep);
}

.nav-link.active {
  color: var(--color-primary-deep);
  border-bottom: 2px solid var(--color-primary-deep);
  padding-bottom: 2px;
}

/* ──────────────────────────────────────────────
   7. BUTTONS
   ────────────────────────────────────────────── */
.btn-primary {
  background: var(--color-primary-deep);
  color: var(--color-surface-white);
  font-family: var(--font-label);
  font-size: var(--text-label-sm);
  letter-spacing: var(--tracking-cta);
  text-transform: uppercase;
  padding: 1rem 2.5rem;
  border: none;
  cursor: pointer;
  transition: opacity var(--duration-normal), transform var(--duration-fast);
  display: inline-block;
  text-decoration: none;
}
.btn-primary:hover { opacity: 0.88; }
.btn-primary:active { transform: scale(0.97); }

.filter-btn {
  font-family: var(--font-label);
  font-size: var(--text-label);
  letter-spacing: var(--tracking-label-md);
  text-transform: uppercase;
  padding: 0.5rem 1.25rem;
  background: transparent;
  color: var(--color-text-faint);
  border: none;
  cursor: pointer;
  transition: all var(--duration-normal);
}
.filter-btn:hover,
.filter-btn.active {
  background: var(--color-primary-deep);
  color: var(--color-surface-white);
}

/* ──────────────────────────────────────────────
   8. KARTEN & PROJEKT-GRID
   ────────────────────────────────────────────── */
.project-card {
  cursor: pointer;
}

.project-card .img-wrap {
  overflow: hidden;
  background: var(--color-surface-mid);
}

.project-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform var(--duration-slow) var(--ease-smooth);
}

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

.project-card h3 {
  font-family: var(--font-headline);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  color: var(--color-primary-deep);
  transition: color var(--duration-normal);
}

.project-card:hover h3 {
  color: var(--color-primary);
}

/* ──────────────────────────────────────────────
   9. TAGS / HASHTAGS
   ────────────────────────────────────────────── */
.tag {
  font-family: var(--font-label);
  font-size: var(--text-label);
  letter-spacing: var(--tracking-label-md);
  text-transform: uppercase;
  color: var(--color-text-subtle);
}

/* ──────────────────────────────────────────────
   10. EYEBROW LABELS
   ────────────────────────────────────────────── */
.eyebrow {
  font-family: var(--font-label);
  font-size: var(--text-label);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--color-text-subtle);
  display: block;
}

/* ──────────────────────────────────────────────
   11. KONTAKTFORMULAR — INPUTS
   ────────────────────────────────────────────── */
.glass-input {
  background: transparent;
  border: none;
  border-bottom: 1px solid rgba(172, 179, 180, 0.4);
  border-radius: 0;
  font-family: var(--font-body);
  font-size: var(--text-body);
  color: var(--color-text);
  padding: 0.75rem 0;
  width: 100%;
  outline: none;
  transition: border-bottom var(--duration-normal);
}
.glass-input:focus {
  border-bottom: 2px solid var(--color-primary-deep);
}
.glass-input::placeholder {
  color: var(--color-text-faint);
  font-size: 0.9rem;
}

/* ──────────────────────────────────────────────
   12. SCROLL REVEAL ANIMATION
   ────────────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition:
    opacity var(--duration-reveal) var(--ease-reveal),
    transform var(--duration-reveal) var(--ease-reveal);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ──────────────────────────────────────────────
   13. MARQUEE / LAUFTEXT
   ────────────────────────────────────────────── */
.marquee-track {
  display: flex;
  gap: 4rem;
  animation: marquee-scroll 22s linear infinite;
  white-space: nowrap;
}
@keyframes marquee-scroll {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}
.marquee-item {
  font-family: var(--font-headline);
  font-weight: 900;
  font-size: clamp(2.5rem, 5vw, 4rem);
  letter-spacing: var(--tracking-headline);
  text-transform: uppercase;
  color: transparent;
  -webkit-text-stroke: 1px var(--color-text-faint);
}
.marquee-item.filled {
  color: var(--color-primary-deep);
  -webkit-text-stroke: 0;
}

/* ──────────────────────────────────────────────
   14. STAT-BLÖCKE (About-Seite)
   ────────────────────────────────────────────── */
.stat-block {
  border-left: 2px solid var(--color-primary-deep);
  padding-left: var(--space-6);
}
.stat-block .num {
  font-family: var(--font-headline);
  font-weight: 900;
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--color-primary-deep);
  line-height: 1;
}
.stat-block .lbl {
  font-family: var(--font-label);
  font-size: var(--text-label);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--color-text-subtle);
  margin-top: var(--space-2);
}

/* ──────────────────────────────────────────────
   15. SKILL CHIPS (About-Seite)
   ────────────────────────────────────────────── */
.skill-chip {
  font-family: var(--font-label);
  font-size: var(--text-label);
  letter-spacing: var(--tracking-label-md);
  text-transform: uppercase;
  padding: 0.5rem 1.25rem;
  background: var(--color-surface-low);
  color: var(--color-text-muted);
}

/* ──────────────────────────────────────────────
   16. CV TIMELINE (About-Seite)
   ────────────────────────────────────────────── */
.cv-item {
  border-top: 1px solid var(--color-surface-low);
  padding-top: var(--space-8);
}
.cv-item:first-child {
  border-top: none;
}

/* ──────────────────────────────────────────────
   17. FOOTER
   ────────────────────────────────────────────── */
.footer-link {
  font-family: var(--font-label);
  font-size: var(--text-label);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--color-text-faint);
  text-decoration: none;
  display: inline-block;
  transition: color var(--duration-normal), transform var(--duration-normal);
}
.footer-link:hover {
  color: var(--color-primary-deep);
  transform: translateX(3px);
}

/* ──────────────────────────────────────────────
   18. SEKTIONS-HINTERGRUND-WECHSEL
   ────────────────────────────────────────────── */
.section-tonal {
  background-color: var(--color-surface-low);
}

/* ──────────────────────────────────────────────
   19. VIDEO HERO
   ────────────────────────────────────────────── */
.video-hero {
  position: relative;
  width: 100%;
  background: #0c0f0f;
  overflow: hidden;
}

.play-ring {
  width: 88px;
  height: 88px;
  border: 1.5px solid rgba(255, 255, 255, 0.25);
  border-radius: 9999px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  cursor: pointer;
  transition: border-color var(--duration-normal);
}
.play-ring:hover { border-color: rgba(255, 255, 255, 0.7); }
.play-ring::before {
  content: '';
  position: absolute;
  inset: -8px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 9999px;
  animation: pulse-ring 2.8s ease-in-out infinite;
}
@keyframes pulse-ring {
  0%, 100% { transform: scale(1); opacity: 0.5; }
  50%       { transform: scale(1.12); opacity: 0; }
}

.play-triangle {
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 12px 0 12px 20px;
  border-color: transparent transparent transparent rgba(255, 255, 255, 0.85);
  margin-left: 4px;
}

.video-label {
  font-family: var(--font-label);
  font-size: var(--text-label);
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.3);
}

/* ──────────────────────────────────────────────
   20. RESPONSIVE — Mobile & Tablet
   ────────────────────────────────────────────── */

/* Shared page wrapper */
.page-wrap {
  max-width: var(--page-max-width);
  margin: 0 auto;
  padding-left: var(--page-padding-x);
  padding-right: var(--page-padding-x);
}

/* ── Hamburger Menu ── */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  z-index: 60;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 1.5px;
  background: var(--color-primary-deep);
  transition: all 0.3s var(--ease-smooth);
  transform-origin: center;
}
.hamburger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* Mobile nav drawer */
.mobile-nav {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(24px);
  z-index: 55;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3rem;
}
.mobile-nav.open { display: flex; }
.mobile-nav a {
  font-family: var(--font-headline);
  font-weight: 900;
  font-size: clamp(2rem, 8vw, 3.5rem);
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--color-primary-deep);
  text-decoration: none;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.4s var(--ease-reveal), transform 0.4s var(--ease-reveal);
}
.mobile-nav.open a { opacity: 1; transform: translateY(0); }
.mobile-nav.open a:nth-child(1) { transition-delay: 0.05s; }
.mobile-nav.open a:nth-child(2) { transition-delay: 0.1s; }
.mobile-nav.open a:nth-child(3) { transition-delay: 0.15s; }
.mobile-nav.open a:nth-child(4) { transition-delay: 0.2s; }

/* ── Tablet (≤ 1024px) ── */
@media (max-width: 1024px) {
  :root {
    --page-padding-x: 1.5rem;
    --section-py: 6rem;
  }
  .stat-block .num { font-size: 2rem; }
}

/* ── Mobile (≤ 768px) ── */
@media (max-width: 768px) {
  :root {
    --page-padding-x: 1.25rem;
    --section-py: 4rem;
  }

  /* Nav */
  .nav-links { display: none; }
  .hamburger { display: flex; }

  /* Video hero */
  .video-hero { height: 55vw !important; min-height: 220px; }

  /* Project grid: single column, no offsets */
  .md\:col-span-8,
  .md\:col-span-7,
  .md\:col-span-6,
  .md\:col-span-5,
  .md\:col-span-4,
  .md\:col-span-3 { grid-column: span 12 / span 12 !important; }
  .md\:col-start-3,
  .md\:col-start-7 { grid-column-start: 1 !important; }
  .md\:-mt-24,
  .md\:mt-48,
  .md\:mt-32,
  .md\:mt-20 { margin-top: 0 !important; }

  /* Typography scale down */
  h1, h2 { word-break: break-word; }

  /* Filter wrap */
  #filters { gap: 0.4rem; }
  .filter-btn { padding: 0.4rem 0.9rem; font-size: 9px; }

  /* Stat blocks: row */
  .stats-row { flex-wrap: wrap; gap: 1.5rem; }

  /* Skills chips */
  .skill-chip { font-size: 9px; padding: 0.4rem 1rem; }

  /* Contact form: full width grid */
  .contact-grid { grid-template-columns: 1fr !important; }

  /* Footer grid */
  .footer-grid { grid-template-columns: 1fr 1fr !important; gap: 2rem !important; }
  .footer-brand { grid-column: span 2; }

  /* Marquee slightly slower on mobile */
  .marquee-track { animation-duration: 14s; }

  /* About accent block hidden on mobile */
  .accent-block-offset { display: none; }

  /* CV items */
  .cv-row { flex-direction: column; gap: 0.25rem; }
}

/* ── Small mobile (≤ 480px) ── */
@media (max-width: 480px) {
  :root {
    --page-padding-x: 1rem;
  }
  .btn-primary, .cta-primary { width: 100%; text-align: center; }
  .nav-logo { font-size: 1rem; }
}