/* ============================================
   Modern Glassmorphism Portfolio Design
   Marcel Richter. Embedded Systems Portfolio
   ============================================ */

/* Google Font Import */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

/* ============================================
   CSS Variables
   ============================================ */
:root {
  /* Colors Light Mode */
  --color-bg-from: #f0f4ff;
  --color-bg-to: #e8f0fe;
  --color-text: #1a1d29;
  --color-text-secondary: #4a5568;
  --color-primary: #5d99f8;
  --color-primary-hover: #6495ff;
  --color-primary-glow: rgba(59, 130, 246, 0.4);
  --color-accent: #06b6d4;
  --color-accent-glow: rgba(6, 182, 212, 0.3);

  /* Glass Effect. Mobile Optimized */
  --glass-bg: rgba(255, 255, 255, 0.10);
  --glass-bg-a: 0.10;
  --glass-bg-b: 0.04;

  --glass-border: rgba(90, 130, 200, 0.18);
  --glass-border-strong: rgba(255, 255, 255, 0.35);

  --glass-shadow: 0 10px 30px rgba(16, 24, 40, 0.08);
  --glass-shadow-hover: 0 18px 55px rgba(16, 24, 40, 0.12);

  --glass-blur: 18px;
  --glass-blur-strong: 28px;

  --glass-surface: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.10),
    rgba(240, 246, 255, 0.04)
  );

  --glass-surface-menu: linear-gradient(
    215deg,
    rgba(157, 196, 255),
    rgb(206, 227, 255)
  );



  /* Blob Colors */
  --blob-1: rgba(59, 130, 246, 0.1);
  --blob-2: rgba(6, 182, 212, 0.08);
  --blob-3: rgba(139, 92, 246, 0.06);

  /* Typography. Mobile First */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
  --font-size-base: 16px;
  --line-height-base: 1.6;

  /* Spacing Scale. Mobile First */
  --spacing-xs: 0.5rem;
  --spacing-sm: 0.75rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 2.5rem;
  --spacing-3xl: 3rem;

  /* Mobile Specific */
  --mobile-padding: 16px;
  --mobile-section-gap: 24px;
  --mobile-card-padding: 16px;
  --touch-target-min: 44px;

  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Container */
  --container-max-width: 1100px;
  --container-padding: var(--mobile-padding);
  --header-height: 50px; /* passt zu deiner .nav-container Höhe */


  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* Tablet and Desktop adjustments */
@media (min-width: 960px) {
  :root {
    --font-size-base: 18px;
    --glass-blur: 20px;
    --glass-blur-strong: 28px;
    --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.2);
    --glass-shadow-hover: 0 12px 48px 0 rgba(31, 38, 135, 0.35);
    --container-padding: 1.5rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    --header-height: 80px; /* genug Luft für Buttons */
  }
}

/* Dark Mode Variables */
body.dark {
  --color-bg-from: #0f172a;
  --color-bg-to: #1e293b;
  --color-text: #f1f5f9;
  --color-text-secondary: #cbd5e1;
  --color-primary: #60a5fa;
  --color-primary-hover: #3b82f6;
  --color-primary-glow: rgba(96, 165, 250, 0.4);
  --color-accent: #22d3ee;
  --color-accent-glow: rgba(34, 211, 238, 0.3);

  --glass-bg: rgba(30, 41, 59, 0.4);
  --glass-border: rgba(148, 163, 184, 0.15);
  --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.5);
  --glass-shadow-hover: 0 12px 48px 0 rgba(0, 0, 0, 0.7);
  --glass-blur: 24px;
  --glass-blur-strong: 32px;

  --glass-surface: linear-gradient(
    135deg,
    rgba(30, 41, 59, 0.42),
    rgba(15, 23, 42, 0.22)
  );


  --blob-1: rgba(96, 165, 250, 0.08);
  --blob-2: rgba(34, 211, 238, 0.06);
  --blob-3: rgba(168, 85, 247, 0.05);
}

/* Dark Mode Enhanced Background */
body.dark::before {
  background-image: url('assets/Image_dark.png');
  opacity: 1;
  filter: blur(12px);
}

body.dark main::before {
  background:
    radial-gradient(circle at 20% 80%, rgba(96, 165, 250, 0.03) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(168, 85, 247, 0.02) 0%, transparent 50%),
    radial-gradient(circle at 40% 40%, rgba(34, 211, 238, 0.02) 0%, transparent 50%);
  filter: blur(25px);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  overflow-x: hidden;
  height: 100%;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  color: var(--color-text);
  background: linear-gradient(135deg, var(--color-bg-from) 0%, var(--color-bg-to) 100%);
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
  transition: background var(--transition-slow), color var(--transition-base);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Background Image Layer. Light Mode */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -3;
  background: url('assets/Image_light.png') center center / cover no-repeat fixed;
  filter: blur(12px);
  opacity: 1;
  transition: opacity var(--transition-slow), filter var(--transition-slow);
  pointer-events: none;
  transform: translate3d(0, 0, 0);
  backface-visibility: hidden;
}

/* Apple-style Mesh Gradient Overlay */
main::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  padding-top: calc(var(--header-height) + var(--spacing-lg));
  z-index: -2;
  background:
    radial-gradient(circle at 20% 80%, rgba(59, 130, 246, 0.03) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(139, 92, 246, 0.02) 0%, transparent 50%),
    radial-gradient(circle at 40% 40%, rgba(6, 182, 212, 0.02) 0%, transparent 50%);
  animation: bgFloat 25s ease-in-out infinite;
  filter: blur(25px);
  pointer-events: none;
}

/* Subtle Background Texture */
body::after {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -4;
  opacity: 0.02;
  background-image:
    repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(0, 0, 0, 0.03) 2px, rgba(0, 0, 0, 0.03) 4px),
    repeating-linear-gradient(90deg, transparent, transparent 2px, rgba(0, 0, 0, 0.03) 2px, rgba(0, 0, 0, 0.03) 4px);
}

@keyframes bgFloat {
  0%, 100% {
    transform: translate(0, 0) scale(1) rotate(0deg);
    opacity: 1;
  }
  25% {
    transform: translate(5%, -5%) scale(1.05) rotate(1deg);
    opacity: 0.9;
  }
  50% {
    transform: translate(-3%, 3%) scale(0.95) rotate(-1deg);
    opacity: 1;
  }
  75% {
    transform: translate(3%, -2%) scale(1.02) rotate(0.5deg);
    opacity: 0.95;
  }
}

/* ============================================
   Typography. Mobile First
   ============================================ */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text);
  margin-bottom: var(--spacing-md);
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(1.75rem, 7vw, 3.5rem); }
h2 { font-size: clamp(1.25rem, 4.5vw, 2.5rem); }
h3 { font-size: clamp(1.1rem, 3vw, 1.75rem); }
h4 { font-size: clamp(1rem, 2vw, 1.25rem); }

p {
  margin-bottom: var(--spacing-md);
  color: var(--color-text-secondary);
  max-width: 65ch;
  line-height: 1.6;
}

@media (min-width: 960px) {
  p { line-height: 1.7; }
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover { color: var(--color-primary-hover); }

a:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* ============================================
   Reusable Components
   ============================================ */

/* Container */
.container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: var(--spacing-lg) var(--container-padding);
}

@media (min-width: 960px) {
  .container { padding: var(--spacing-xl) var(--container-padding); }
}

.content {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: var(--spacing-xl) var(--container-padding);
  padding-top: calc(var(--header-height) + var(--spacing-lg));
}

@media (min-width: 960px) {
  .content {
    padding: var(--spacing-2xl) var(--container-padding);
    padding-top: calc(var(--header-height) + var(--spacing-xl));
  }
}

/* Glass Effect. Apple Style */
.glass {
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, var(--glass-bg-a)),
    rgba(240, 246, 255, var(--glass-bg-b))
  );

  backdrop-filter: saturate(200%) blur(var(--glass-blur));
  -webkit-backdrop-filter: saturate(200%) blur(var(--glass-blur));

  border: 1px solid var(--glass-border);

  box-shadow:
    var(--glass-shadow),
    inset 0 1px 0 rgba(255, 255, 255, 0.55),
    inset 0 0 0 1px rgba(255, 255, 255, 0.14);

  transition: all var(--transition-base);
  position: relative;
  border-top-color: rgba(255, 255, 255, 0.45);
  border-left-color: rgba(255, 255, 255, 0.22);

}

.glass::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.75),
    transparent
  );
  opacity: 0.9;
  border-radius: inherit;
  pointer-events: none;
}

/* Optional: ganz leichtes Specular Highlight rechts oben */
.glass::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  background: radial-gradient(
    1200px 600px at 90% 10%,
    rgba(255, 255, 255, 0.20),
    transparent 55%
  );
  opacity: 0.9;
}

.glass:hover {
  backdrop-filter: saturate(200%) blur(var(--glass-blur-strong));
  -webkit-backdrop-filter: saturate(200%) blur(var(--glass-blur-strong));

  border-color: var(--glass-border-strong);

  box-shadow:
    var(--glass-shadow-hover),
    inset 0 1px 0 rgba(255, 255, 255, 0.60),
    inset 0 0 0 1px rgba(255, 255, 255, 0.18);

  transform: translateY(-2px);
}

/* Fallback for browsers without backdrop-filter */
@supports not (backdrop-filter: blur(14px)) {
  .glass { background: rgba(255, 255, 255, 0.95); }
  body.dark .glass { background: rgba(30, 41, 59, 0.95); }
}

/* Card */
.card {
  background: var(--glass-surface);
  backdrop-filter: saturate(160%) blur(var(--glass-blur));
  -webkit-backdrop-filter: saturate(160%) blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--glass-shadow);
  transition: all var(--transition-base);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--glass-shadow-hover);
}

/* Badge */
.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--spacing-sm) var(--spacing-lg);
  background: var(--glass-surface);
  backdrop-filter: saturate(160%) blur(var(--glass-blur));
  -webkit-backdrop-filter: saturate(160%) blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text);
  transition: all var(--transition-base);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

.badge::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  opacity: 0;
  transition: opacity var(--transition-base);
  z-index: -1;
}

.badge:active { transform: scale(0.95); }

@media (min-width: 960px) {
  .badge:hover {
    transform: translateY(-2px) scale(1.05);
    border-color: transparent;
    box-shadow: 0 6px 20px var(--color-primary-glow);
    color: white;
    backdrop-filter: saturate(200%) blur(var(--glass-blur-strong));
    -webkit-backdrop-filter: saturate(200%) blur(var(--glass-blur-strong));
  }
  .badge:hover::before { opacity: 1; }
}

/* Buttons. Touch Optimized */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  font-family: var(--font-family);
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  white-space: nowrap;
  min-height: var(--touch-target-min);
  position: relative;
  overflow: hidden;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

@media (min-width: 960px) {
  .btn { padding: 0.875rem 1.75rem; }
}

/* Ripple effect */
.btn::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.4);
  transform: translate(-50%, -50%);
  opacity: 0;
}

/* If you want, define this var in :root */
:root { --ripple-duration: 450ms; }

.btn {
  transition: all var(--transition-base);
}

.btn::after {
  transition: width var(--ripple-duration), height var(--ripple-duration), opacity var(--ripple-duration);
}

.btn:active::after {
  width: 300px;
  height: 300px;
  opacity: 0.3;
  transition: 0s;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
  color: white;
  box-shadow: 0 4px 14px var(--color-primary-glow);
}

.btn-primary:active {
  transform: scale(0.96);
  box-shadow: 0 2px 8px var(--color-primary-glow);
}

@media (min-width: 960px) {
  .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px var(--color-primary-glow);
  }
  .btn-primary:active { transform: translateY(0) scale(0.98); }
}

.btn-secondary {
  background: var(--glass-surface);
  backdrop-filter: saturate(160%) blur(var(--glass-blur));
  -webkit-backdrop-filter: saturate(160%) blur(var(--glass-blur));
  color: var(--color-text);
  border: 1.5px solid var(--glass-border);
}

.btn-secondary:active {
  transform: scale(0.96);
  background: rgba(59, 130, 246, 0.1);
  border-color: var(--color-primary);
}

@media (min-width: 960px) {
  .btn-secondary:hover {
    transform: translateY(-2px);
    backdrop-filter: blur(var(--glass-blur-strong));
    -webkit-backdrop-filter: blur(var(--glass-blur-strong));
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    color: white;
    border-color: transparent;
    box-shadow: 0 8px 24px var(--color-primary-glow);
  }
  .btn-secondary:active { transform: translateY(0) scale(0.98); }
}

.btn:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
}

/* ============================================
   Navigation
   ============================================ */

.site-header {
  position: fixed;
  height: var(--header-height);
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--glass-surface);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.1), 0 4px 20px rgba(0, 0, 0, 0.05);
}

.nav-container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-md);
  position: relative;
  height: 100%;
  top: 0;
  z-index: 1000;
}

@media (min-width: 960px) {
  .nav-container {
    padding: 0 var(--container-padding);
    gap: var(--spacing-lg);
  }
}

.nav-logo {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.02em;
  transition: color var(--transition-fast);
  z-index: 1001;

  height: 44px;
  line-height: 44px;
  display: inline-flex;
  align-items: center;

  flex: 0 1 auto;
  min-width: 0;
}

@media (min-width: 960px) {
  .nav-logo {
    font-size: 1.25rem; 
    white-space: nowrap;
  }
}

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

/* Desktop Navigation */
.nav-links { display: none; }

@media (min-width: 960px) {
  .nav-links {
    display: flex;
    flex-wrap: nowrap;   /* keine zweite Zeile */
    gap: var(--spacing-sm);
    list-style: none;
    align-items: center;
    white-space: nowrap;
  }
}

.nav-links a {
  padding: var(--spacing-sm) var(--spacing-lg);
  color: var(--color-text-secondary);
  font-weight: 500;
  font-size: 0.95rem;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-text);
  background: var(--glass-surface);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(10px);
}

.nav-links a.active {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
  color: white;
  box-shadow: 0 2px 8px var(--color-primary-glow);
}

/* Desktop Controls */
.nav-controls { display: none; }

@media (min-width: 960px) {
  .nav-controls {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
  }
}

/* Toggle Buttons */
.toggle-btn {
  padding: 0.625rem 1rem;
  font-size: 0.875rem;
  font-weight: 600;
  background: var(--glass-surface);
  backdrop-filter: blur(10px);
  color: var(--color-text);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
  font-family: var(--font-family);
  min-width: 110px;
  text-align: center;
  position: relative;
  overflow: hidden;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

.toggle-btn::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: var(--color-primary);
  transform: translate(-50%, -50%);
  transition: width 0.5s, height 0.5s, opacity 0.5s;
  opacity: 0;
}

.toggle-btn:active::after {
  width: 200px;
  height: 200px;
  opacity: 0.2;
  transition: 0s;
}

.toggle-btn:active {
  transform: scale(0.95);
  background: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
}

@media (min-width: 960px) {
  .toggle-btn:hover {
    transform: translateY(-2px);
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
    box-shadow: 0 4px 12px var(--color-primary-glow);
  }
  .toggle-btn:active { transform: translateY(0) scale(0.97); }
}

.toggle-btn:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Mobile Controls Wrapper */
.nav-mobile-controls {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-left: auto;
  flex: 0 0 auto;
}

@media (min-width: 960px) {
  .nav-mobile-controls { display: none; }
}

/* ============================================
   Mobile Navigation System
   ============================================ */

/* Hamburger button only on mobile */
.hamburger {
  display: inline-flex;
  align-items: center;
  justify-content: center;

  width: 44px;
  height: 44px;
  min-height: 44px;

  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 1001;
  position: relative;
  border-radius: var(--radius-md);
  transition: background var(--transition-fast);
  -webkit-tap-highlight-color: transparent;
  margin-left: 0;
  flex-shrink: 0;
}

@media (min-width: 960px) {
  .hamburger { display: none; }
}

.hamburger span {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 22px;
  height: 2.5px;
  background: var(--color-text);
  border-radius: 3px;
  transition: all var(--transition-base);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
  display: block;
}

.hamburger span:nth-child(1) { top: 14px; }
.hamburger span:nth-child(2) { top: 50%; transform: translate(-50%, -50%); }
.hamburger span:nth-child(3) { bottom: 14px; }

.hamburger:active {
  transform: scale(0.95);
  background: rgba(59, 130, 246, 0.1);
}

/* Mobile Overlay */
.mobile-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: rgba(0, 0, 0, 0.5);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease-out, visibility 0.3s, backdrop-filter 0.3s ease-out;
  z-index: 1900;
  backdrop-filter: blur(0px);
  -webkit-backdrop-filter: blur(0px);
}

.mobile-overlay.active {
  opacity: 1;
  visibility: visible;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

@media (min-width: 960px) {
  .mobile-overlay { display: none; }
}

/* Mobile Menu Panel - 100% Opaque */
.mobile-menu {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 300px;
  max-width: 85vw;
  height: 100vh;
  height: 100dvh;
  background: var(--glass-surface-menu);
  border-left: 1px solid var(--glass-border);
  box-shadow: -8px 0 40px rgba(0, 0, 0, 0.2);
  transform: translateX(100%);
  opacity: 0;
  transition: transform 0.3s ease-out, opacity 0.3s ease-out;
  z-index: 2000;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 4rem 1.5rem 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

body.dark .mobile-menu {
  background: #0f172a;
  border-left-color: rgba(148, 163, 184, 0.3);
}

.mobile-menu.active {
  transform: translateX(0);
  opacity: 1;
}

@media (min-width: 960px) {
  .mobile-menu { display: none; }
}

/* Mobile Menu Close Button */
.mobile-menu-close {
  position: absolute;
  top: 0.875rem;
  right: 1rem;
  width: 44px;
  height: 44px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  transition: background 0.2s ease, transform 0.1s ease;
  z-index: 2000;
}

.mobile-menu-close:hover {
  background: rgba(59, 130, 246, 0.1);
}

.mobile-menu-close:active {
  transform: scale(0.9);
}

.mobile-menu-close::before,
.mobile-menu-close::after {
  content: '';
  position: absolute;
  width: 18px;
  height: 2px;
  background: var(--color-text);
  border-radius: 1px;
  transition: transform 0.2s ease;
}

.mobile-menu-close::before {
  transform: rotate(45deg);
}

.mobile-menu-close::after {
  transform: rotate(-45deg);
}

.mobile-menu-close:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}


.mobile-menu-links {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  margin: 0;
}

.mobile-menu-links li {
  list-style: none;
}

.mobile-menu-links li a {
  display: flex;
  align-items: center;
  padding: 1rem 1.25rem;
  color: var(--color-text);
  font-weight: 600;
  font-size: 1.05rem;
  border-radius: var(--radius-md);
  transition: background 0.2s ease, color 0.2s ease;
  min-height: var(--touch-target-min);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--glass-border);
  position: relative;
  overflow: hidden;
  -webkit-tap-highlight-color: transparent;
}

.mobile-menu-links li a::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: 3px;
  background: var(--color-primary);
  transform: scaleY(0);
  transition: transform 0.2s ease;
}

.mobile-menu-links li a:active::before { transform: scaleY(1); }

.mobile-menu-links li a:active {
  background: rgba(59, 130, 246, 0.15);
  color: var(--color-primary);
}

/* Mobile Controls inside Menu */
.mobile-controls {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  padding-top: var(--spacing-lg);
  margin-top: auto;
  border-top: 1px solid var(--glass-border);
}

.mobile-controls .toggle-btn {
  width: 100%;
  justify-content: center;
  min-height: 48px;
  font-size: 0.95rem;
  padding: 0.875rem 1rem;
}

/* Body scroll lock when menu open */
body.menu-open {
  overflow: hidden;
  overscroll-behavior: none;
}

/* ============================================
   Hero Section. Mobile First
   ============================================ */
.hero-section {
  padding: var(--spacing-2xl) var(--container-padding) var(--spacing-xl);
  padding-top: calc(var(--header-height) + var(--spacing-2xl));
  text-align: center;
}

.hero-content {
  max-width: 100%;
  margin: 0 auto;
}

.hero-content > div,
.hero-content {
  background: var(--glass-surface);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--mobile-card-padding);
  box-shadow: var(--glass-shadow), inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.hero-avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--glass-border);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
  margin-bottom: var(--spacing-lg);
  transition: all var(--transition-base);
}

.hero-text h1 {
  margin-bottom: var(--spacing-md);
  font-size: clamp(1.75rem, 7vw, 3rem);
}

.hero-name {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: block;
}

.hero-subtitle {
  font-size: clamp(0.95rem, 3vw, 1.25rem);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-sm);
  font-weight: 500;
  line-height: 1.4;
  max-width: 90%;
  margin-left: auto;
  margin-right: auto;
}

.hero-focus {
  font-size: clamp(0.9rem, 2.5vw, 1.1rem);
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: var(--spacing-md);
}

.hero-tagline {
  font-size: clamp(0.875rem, 2vw, 1.1rem);
  line-height: 1.6;
  color: var(--color-text-secondary);
  max-width: 100%;
  margin: 0 auto;
  display: block;
  -webkit-line-clamp: unset;
  line-clamp: unset;
  -webkit-box-orient: unset;
}

@media (min-width: 960px) {
  .hero-section {
    padding: var(--spacing-3xl) var(--container-padding) var(--spacing-2xl); 
    padding-top: calc(var(--header-height) + var(--spacing-3xl)); 
  }
  .hero-content { max-width: 900px; }

  .hero-content > div,
  .hero-content {
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    backdrop-filter: blur(var(--glass-blur-strong));
    -webkit-backdrop-filter: blur(var(--glass-blur-strong));
    box-shadow: 0 8px 40px rgba(31, 38, 135, 0.25), inset 0 1px 0 rgba(255, 255, 255, 0.2);
  }

  .hero-avatar {
    width: 160px;
    height: 160px;
    border: 4px solid var(--glass-border);
    margin-bottom: var(--spacing-xl);
  }

  .hero-avatar:hover {
    transform: scale(1.05);
    box-shadow: 0 12px 48px var(--color-primary-glow);
  }

  .hero-subtitle { max-width: 80%; }

  .hero-tagline {
    max-width: 700px;
    line-height: 1.7;
    -webkit-line-clamp: unset;
    line-clamp: unset;
  }
}

/* ============================================
   Sections
   ============================================ */
section { margin-bottom: var(--spacing-2xl); }

@media (min-width: 960px) {
  section { margin-bottom: var(--spacing-3xl); }
}

section h2 {
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

@media (min-width: 960px) {
  section h2 { margin-bottom: var(--spacing-xl); }
}

/* About Section */
.bullets {
  list-style: none;
  max-width: 800px;
  margin: 0 auto;
  display: grid;
  gap: var(--spacing-md);
}

@media (min-width: 960px) {
  .bullets { gap: var(--spacing-lg); }
}

.bullets li {
  background: var(--glass-surface);
  backdrop-filter: blur(14px);
  border: 1px solid var(--glass-border);
  border-left: 3px solid var(--color-primary);
  border-radius: var(--radius-md);
  padding: var(--spacing-md) var(--spacing-lg);
  box-shadow: var(--glass-shadow);
  transition: all var(--transition-base);
  font-size: 0.95rem;
}

@media (min-width: 960px) {
  .bullets li {
    padding: var(--spacing-lg);
    font-size: 1.05rem;
    border-left-width: 4px;
  }
}

@media (min-width: 960px) {
  .bullets li:hover {
    transform: translateX(8px);
    box-shadow: var(--glass-shadow-hover);
    border-left-color: var(--color-accent);
  }
}

/* Skills Section */
.badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  justify-content: center;
  margin-bottom: var(--spacing-xl);
}

.hint {
  text-align: center;
  font-size: 0.95rem;
  font-style: italic;
  color: var(--color-text-secondary);
  max-width: 650px;
  margin: 0 auto;
  padding: var(--spacing-lg);
}

/* ============================================
   Projects Grid. Mobile First
   ============================================ */
.projects-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--mobile-section-gap);
  margin-top: var(--spacing-lg);
}

@media (min-width: 960px) {
  .projects-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl);
  }
}

@media (min-width: 1024px) {
  .projects-grid {
    grid-template-columns: repeat(3, 1fr);
    margin-top: var(--spacing-xl);
  }
}

.project-card {
  background: var(--glass-surface);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--mobile-card-padding);
  box-shadow: var(--glass-shadow);
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  position: relative;
  overflow: hidden;
  min-height: 200px;
}

@media (min-width: 960px) {
  .project-card { padding: var(--spacing-xl); }
}

.project-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
  transition: left 0.5s;
  pointer-events: none;
}

@media (min-width: 960px) {
  .project-card:hover::before { left: 100%; }

  .project-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--glass-shadow-hover);
    backdrop-filter: blur(var(--glass-blur-strong));
    -webkit-backdrop-filter: blur(var(--glass-blur-strong));
    border-color: var(--color-primary);
  }
}

.project-card:active { transform: scale(0.98); }

.project-card h3 {
  font-size: clamp(1.1rem, 3vw, 1.5rem);
  margin-bottom: var(--spacing-sm);
}

.project-card h3 a {
  color: var(--color-text);
  transition: color var(--transition-fast);
}

.project-summary {
  font-size: clamp(0.9rem, 2vw, 1rem);
  color: var(--color-text-secondary);
  line-height: 1.6;
  flex-grow: 1;
}

.project-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.project-features li {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  padding-left: 1.5rem;
  position: relative;
  line-height: 1.6;
}

.project-features li::before {
  content: "▸";
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: bold;
  font-size: 1.1rem;
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-md);
}

.tech-tag {
  padding: 0.375rem 0.875rem;
  background: var(--glass-surface);
  backdrop-filter: blur(8px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
}

.tech-tag:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
}

/* ============================================
   Project Detail Page
   ============================================ */
.project-detail {
  max-width: 900px;
  margin: 0 auto;
}

.project-header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
  padding: var(--spacing-lg);
  background: var(--glass-surface);
  backdrop-filter: blur(14px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--glass-shadow);
}

@media (min-width: 960px) {
  .project-header {
    margin-bottom: var(--spacing-3xl);
    padding: var(--spacing-xl);
  }
}

.project-header h1 {
  font-size: clamp(1.75rem, 5vw, 3rem);
  margin-bottom: var(--spacing-sm);
}

@media (min-width: 960px) {
  .project-header h1 { margin-bottom: var(--spacing-md); }
}

.project-oneliner {
  font-size: clamp(0.95rem, 2vw, 1.25rem);
  color: var(--color-text-secondary);
  font-style: italic;
}

.project-section {
  background: var(--glass-surface);
  backdrop-filter: blur(14px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
  box-shadow: var(--glass-shadow);
}

@media (min-width: 960px) {
  .project-section {
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
  }
}

.project-section h2 {
  text-align: left;
  font-size: clamp(1.5rem, 3.5vw, 1.75rem);
  margin-bottom: var(--spacing-md);
  color: var(--color-text);
}

@media (min-width: 960px) {
  .project-section h2 { margin-bottom: var(--spacing-lg); }
}

.project-section ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

@media (min-width: 960px) {
  .project-section ul { gap: var(--spacing-md); }
}

.project-section ul li {
  padding-left: 1.5rem;
  position: relative;
  line-height: 1.6;
  color: var(--color-text-secondary);
  font-size: 0.95rem;
}

@media (min-width: 960px) {
  .project-section ul li {
    padding-left: 1.75rem;
    line-height: 1.7;
    font-size: 1rem;
  }
}

.project-section ul li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: bold;
  font-size: 1.1rem;
}

@media (min-width: 960px) {
  .project-section ul li::before { font-size: 1.2rem; }
}

.project-screenshot {
  width: 100%;
  max-width: 100%;
  height: auto;
  min-height: 200px;
  border-radius: var(--radius-md);
  margin: var(--spacing-md) 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--glass-surface);
  border: 1px solid var(--glass-border);
  padding: var(--spacing-lg);
  text-align: center;
  color: var(--color-text-secondary);
  font-style: italic;
  font-size: 0.9rem;
}

@media (min-width: 960px) {
  .project-screenshot {
    min-height: 250px;
    margin: var(--spacing-lg) 0;
    padding: var(--spacing-xl);
    font-size: 1rem;
  }
}

.project-links {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-md);
}

@media (min-width: 480px) {
  .project-links {
    flex-direction: row;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    justify-content: center;
  }
}

@media (min-width: 960px) {
  .project-links { margin-top: var(--spacing-lg); }
}

.project-nav {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-xl);
}

@media (min-width: 480px) {
  .project-nav {
    flex-direction: row;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    justify-content: center;
  }
}

@media (min-width: 960px) {
  .project-nav { margin-top: var(--spacing-2xl); }
}

/* ============================================
   Forms
   ============================================ */
.form-wrapper {
  max-width: 650px;
  margin: var(--spacing-xl) auto;
  background: var(--glass-surface);
  backdrop-filter: blur(14px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--glass-shadow);
}

@media (min-width: 960px) {
  .form-wrapper {
    margin: var(--spacing-2xl) auto;
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
  }
}

.form-wrapper h1 {
  text-align: center;
  margin-bottom: var(--spacing-sm);
  font-size: clamp(1.75rem, 6vw, 2.5rem);
}

@media (min-width: 960px) {
  .form-wrapper h1 { margin-bottom: var(--spacing-md); }
}

.form-intro {
  text-align: center;
  margin-bottom: var(--spacing-lg);
  color: var(--color-text-secondary);
  font-size: 0.95rem;
}

@media (min-width: 960px) {
  .form-intro {
    margin-bottom: var(--spacing-xl);
    font-size: 1rem;
  }
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

@media (min-width: 960px) {
  .contact-form { gap: var(--spacing-lg); }
}

.contact-form label {
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--spacing-xs);
  display: block;
  font-size: 0.9rem;
}

@media (min-width: 960px) {
  .contact-form label {
    margin-bottom: var(--spacing-sm);
    font-size: 0.95rem;
  }
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  font-family: var(--font-family);
  background: var(--glass-surface);
  backdrop-filter: blur(10px);
  border: 1.5px solid var(--glass-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  transition: all var(--transition-base);
  min-height: var(--touch-target-min);
}

@media (min-width: 960px) {
  .contact-form input,
  .contact-form textarea {
    padding: 0.875rem 1.25rem;
  }
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-glow);
}

.contact-form textarea {
  resize: vertical;
  min-height: 140px;
  line-height: 1.6;
}

@media (min-width: 960px) {
  .contact-form textarea {
    min-height: 160px;
  }
}

.error-message,
.success-message {
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  font-weight: 500;
  text-align: center;
  backdrop-filter: blur(10px);
  font-size: 0.9rem;
}

@media (min-width: 960px) {
  .error-message,
  .success-message {
    padding: var(--spacing-lg);
    font-size: 1rem;
  }
}

.error-message {
  background: rgba(239, 68, 68, 0.1);
  color: #dc2626;
  border: 1.5px solid rgba(239, 68, 68, 0.3);
}

.success-message {
  background: rgba(34, 197, 94, 0.1);
  color: #16a34a;
  border: 1.5px solid rgba(34, 197, 94, 0.3);
}

.form-actions {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-md);
}

@media (min-width: 480px) {
  .form-actions {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-md);
  }
}

@media (min-width: 960px) {
  .form-actions { margin-top: var(--spacing-lg); }
}

/* ============================================
   CV Page
   ============================================ */
.cv-section {
  background: var(--glass-surface);
  backdrop-filter: blur(14px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
  box-shadow: var(--glass-shadow);
}

@media (min-width: 960px) {
  .cv-section {
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
  }
}

.cv-section h2 {
  text-align: left;
  margin-bottom: var(--spacing-md);
  font-size: clamp(1.5rem, 3.5vw, 1.75rem);
}

@media (min-width: 960px) {
  .cv-section h2 { margin-bottom: var(--spacing-lg); }
}

.cv-section h3 {
  font-size: clamp(1.1rem, 2.5vw, 1.25rem);
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
  font-weight: 600;
}

.cv-item { margin-bottom: var(--spacing-lg); }

@media (min-width: 960px) {
  .cv-item { margin-bottom: var(--spacing-xl); }
}

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

.cv-item-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: var(--spacing-xs) var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
}

.cv-date {
  color: var(--color-text-secondary);
  font-size: 0.85rem;
  font-weight: 500;
}

@media (min-width: 960px) {
  .cv-date { font-size: 0.9rem; }
}

.cv-institution {
  color: var(--color-text-secondary);
  font-weight: 500;
  margin-bottom: var(--spacing-sm);
  font-size: 0.95rem;
}

@media (min-width: 960px) {
  .cv-institution { font-size: 1rem; }
}

.cv-focus {
  color: var(--color-accent);
  font-weight: 500;
  margin-bottom: var(--spacing-sm);
  font-size: 0.9rem;
}

@media (min-width: 960px) {
  .cv-focus {
    margin-bottom: var(--spacing-md);
    font-size: 1rem;
  }
}

.cv-highlights {
  list-style: none;
  padding: 0;
  margin-top: var(--spacing-md);
}

.cv-highlights li {
  padding-left: 1.5rem;
  position: relative;
  margin-bottom: var(--spacing-sm);
  line-height: 1.6;
  color: var(--color-text-secondary);
}

.cv-highlights li::before {
  content: "▹";
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: bold;
}

.cv-skills-category { margin-bottom: var(--spacing-lg); }

@media (min-width: 960px) {
  .cv-skills-category { margin-bottom: var(--spacing-xl); }
}

.cv-skills-category:last-child { margin-bottom: 0; }

.cv-skills-category h4 {
  font-size: 0.95rem;
  color: var(--color-text);
  margin-bottom: var(--spacing-sm);
  font-weight: 600;
}

@media (min-width: 960px) {
  .cv-skills-category h4 {
    font-size: 1rem;
    margin-bottom: var(--spacing-md);
  }
}

.cv-languages {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-md);
}

@media (min-width: 480px) {
  .cv-languages { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 960px) {
  .cv-languages {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
  }
}

.cv-language {
  display: flex;
  justify-content: space-between;
  padding: var(--spacing-sm) var(--spacing-md);
  background: rgba(59, 130, 246, 0.05);
  border-radius: var(--radius-md);
  border: 1px solid rgba(59, 130, 246, 0.1);
}

@media (min-width: 960px) {
  .cv-language { padding: var(--spacing-md); }
}

.cv-language span:first-child {
  font-weight: 600;
  color: var(--color-text);
  font-size: 0.95rem;
}

@media (min-width: 960px) {
  .cv-language span:first-child { font-size: 1rem; }
}

.cv-language span:last-child {
  color: var(--color-text-secondary);
  font-size: 0.85rem;
}

@media (min-width: 960px) {
  .cv-language span:last-child { font-size: 0.9rem; }
}

.cv-item p {
  margin-bottom: var(--spacing-md);
  line-height: 1.7;
}

.cv-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  justify-content: center;
  margin-top: var(--spacing-2xl);
}

/* CV Preview on Index Page */
.cv-preview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-2xl);
}

.cv-preview-card {
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  position: relative;
  overflow: hidden;
}

.cv-preview-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  transform: scaleX(0);
  transition: transform var(--transition-base);
}

.cv-preview-card:hover::after { transform: scaleX(1); }

.cv-preview-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--glass-shadow-hover);
  backdrop-filter: blur(var(--glass-blur-strong));
  -webkit-backdrop-filter: blur(var(--glass-blur-strong));
  border-color: rgba(255, 255, 255, 0.4);
}

.cv-preview-description {
  margin-top: var(--spacing-md);
  color: var(--color-text-secondary);
  line-height: 1.7;
  font-size: 0.95rem;
}

.cv-preview-card h3 {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-lg);
  color: var(--color-text);
  font-weight: 600;
}

.cv-preview-card h4 {
  font-size: 1.1rem;
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
  font-weight: 600;
}

.cv-preview-item { margin-bottom: var(--spacing-md); }

.cv-preview-detail {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-xs);
  font-size: 0.95rem;
}

.cv-skills-card { grid-column: 1 / -1; }

.cv-cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  justify-content: center;
  margin-top: var(--spacing-2xl);
}

/* ============================================
   Footer
   ============================================ */
.site-footer {
  margin-top: var(--spacing-2xl);
  padding: var(--spacing-xl) var(--container-padding);
  background: var(--glass-surface);
  backdrop-filter: blur(14px);
  border-top: 1px solid var(--glass-border);
  box-shadow: 0 -8px 32px rgba(0, 0, 0, 0.05);
}

@media (min-width: 960px) {
  .site-footer {
    margin-top: var(--spacing-3xl);
    padding: var(--spacing-2xl) var(--container-padding);
  }
}

.footer-content {
  max-width: var(--container-max-width);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
  align-items: center;
  text-align: center;
}

@media (min-width: 960px) {
  .footer-content {
    flex-direction: row;
    flex-wrap: wrap;
    gap: var(--spacing-xl);
    justify-content: space-between;
    text-align: left;
  }
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  list-style: none;
  justify-content: center;
}

@media (min-width: 960px) {
  .footer-links {
    gap: var(--spacing-lg);
    justify-content: flex-start;
  }
}

.footer-links a {
  color: var(--color-text-secondary);
  font-weight: 500;
  transition: color var(--transition-fast);
  font-size: 0.9rem;
}

@media (min-width: 960px) {
  .footer-links a { font-size: 0.95rem; }
}

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

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  justify-content: center;
}

@media (min-width: 960px) {
  .footer-legal {
    gap: var(--spacing-lg);
    font-size: 0.875rem;
    justify-content: flex-start;
  }
}

.footer-legal a {
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

.footer-legal a:hover { color: var(--color-primary); }

/* ============================================
   Thank You Page
   ============================================ */
.thank-you-container {
  max-width: 650px;
  margin: var(--spacing-xl) auto;
  text-align: center;
  background: var(--glass-surface);
  backdrop-filter: blur(14px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--glass-shadow);
}

@media (min-width: 960px) {
  .thank-you-container {
    margin: var(--spacing-2xl) auto;
    border-radius: var(--radius-xl);
    padding: var(--spacing-3xl);
  }
}

.thank-you-container h1 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  margin-bottom: var(--spacing-md);
}

@media (min-width: 960px) {
  .thank-you-container h1 { margin-bottom: var(--spacing-lg); }
}

.thank-you-links {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-lg);
}

@media (min-width: 480px) {
  .thank-you-links {
    flex-direction: row;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    justify-content: center;
  }
}

@media (min-width: 960px) {
  .thank-you-links { margin-top: var(--spacing-xl); }
}

/* ============================================
   Legal Pages
   ============================================ */
.legal-page {
  max-width: 850px;
  margin: 0 auto;
}

.legal-page h1 {
  font-size: clamp(1.75rem, 5vw, 2.75rem);
  margin-bottom: var(--spacing-lg);
  text-align: center;
}

@media (min-width: 960px) {
  .legal-page h1 { margin-bottom: var(--spacing-xl); }
}

.legal-page h2 {
  text-align: left;
  font-size: clamp(1.25rem, 3.5vw, 1.5rem);
  margin-top: var(--spacing-xl);
  margin-bottom: var(--spacing-md);
}

@media (min-width: 960px) {
  .legal-page h2 {
    margin-top: var(--spacing-2xl);
    margin-bottom: var(--spacing-lg);
  }
}

.legal-page h3 {
  font-size: clamp(1.1rem, 2.8vw, 1.25rem);
  margin-top: var(--spacing-lg);
  margin-bottom: var(--spacing-sm);
  color: var(--color-text);
}

@media (min-width: 960px) {
  .legal-page h3 {
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
  }
}

.legal-page p {
  margin-bottom: var(--spacing-md);
  line-height: 1.7;
  color: var(--color-text-secondary);
  font-size: 0.95rem;
}

@media (min-width: 960px) {
  .legal-page p {
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
    font-size: 1rem;
  }
}

.legal-page ul {
  margin-left: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
  list-style-type: disc;
}

@media (min-width: 960px) {
  .legal-page ul {
    margin-left: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
  }
}

.legal-page ul li {
  margin-bottom: var(--spacing-sm);
  line-height: 1.7;
  color: var(--color-text-secondary);
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 960px) {
  :root {
    --spacing-xl: 1.5rem;
    --spacing-2xl: 2rem;
    --spacing-3xl: 2.5rem;
  }

  /* Wichtig. Header bleibt eine Zeile */
  .nav-container {
    flex-direction: row;
    align-items: center;
    row-gap: var(--spacing-sm);
    column-gap: var(--spacing-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    justify-content: space-between;
    height: var(--header-height);
    gap: 0.75rem;
    padding: 0 var(--container-padding);
  }

  .footer-content {
    flex-direction: column;
    text-align: center;
    gap: var(--spacing-xl);
  }

  .footer-links,
  .footer-legal {
    justify-content: center;
  }

  .btn {
    width: 100%;
    min-width: unset;
  }

  .project-nav,
  .cv-actions,
  .form-actions,
  .thank-you-links {
    flex-direction: column;
  }
}

@media (max-width: 480px) {
  :root { --container-padding: 1rem; }

  .toggle-btn {
    font-size: 0.8rem;
    padding: 0.5rem 0.875rem;
  }

  .nav-links a {
    font-size: 0.875rem;
    padding: var(--spacing-xs) var(--spacing-md);
  }

  .form-wrapper,
  .thank-you-container {
    padding: var(--spacing-xl);
  }
}

/* ============================================
   Accessibility
   ============================================ */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

*:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

button:focus-visible,
.btn:focus-visible {
  outline-offset: 2px;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  body::before,
  body::after,
  main::before {
    animation: none !important;
  }
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
  :root {
    --glass-bg: rgba(255, 255, 255, 0.95);
    --glass-border: rgba(0, 0, 0, 0.3);
  }

  body.dark {
    --glass-bg: rgba(0, 0, 0, 0.95);
    --glass-border: rgba(255, 255, 255, 0.3);
  }

  .badge,
  .tech-tag {
    border-width: 2px;
  }
}

/* ============================================
   Print Styles
   ============================================ */
@media print {
  body::before,
  body::after,
  main::before { display: none !important; }

  .site-header,
  .site-footer,
  .nav-controls,
  .toggle-btn { display: none !important; }

  .glass,
  .card,
  .project-card {
    background: white !important;
    box-shadow: none !important;
    border: 1px solid #ddd !important;
  }
}