/*
Theme Name: Merlin Lietz Portfolio
Theme URI: https://merlinlietz.com
Author: Merlin Lietz
Description: Professional freelancer portfolio — clean, modern, dark/light mode
Version: 3.0.0
Text Domain: merlin-portfolio
*/

/* ============================================
   LOCAL FONT — Inter (DSGVO-konform)
   ============================================ */
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 400 800;
  font-display: swap;
  src: url('./fonts/inter-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* ============================================
   CSS CUSTOM PROPERTIES
   ============================================ */
:root {
  /* Dark Theme (default) */
  --bg-primary: #121826;
  --bg-secondary: #1a2235;
  --bg-card: rgba(30, 42, 62, 0.55);
  --bg-card-hover: rgba(38, 54, 78, 0.7);
  --modal-bg: rgba(30, 42, 62, 0.92);
  --text-primary: #e4eaf2;
  --text-secondary: #9badc4;
  --text-muted: #6b7f99;
  --accent: #4b8df8;
  --accent-hover: #6ea4fa;
  --accent-rgb: 75, 141, 248;
  --accent-glow: rgba(75, 141, 248, 0.14);
  --accent-glow-strong: rgba(75, 141, 248, 0.24);
  --purple: #8b5cf6;
  --purple-rgb: 139, 92, 246;
  --teal: #14b8a6;
  --teal-rgb: 20, 184, 166;
  --border: rgba(255, 255, 255, 0.1);
  --border-hover: rgba(75, 141, 248, 0.4);
  --nav-bg: rgba(18, 24, 38, 0.82);
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
  --shadow-glow: 0 8px 32px rgba(75, 141, 248, 0.12);
  --glass-blur: blur(16px);
  --radius: 16px;
  --radius-sm: 10px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  --form-bg: rgba(12, 18, 32, 0.45);
}

[data-theme="light"] {
  --bg-primary: #dfe6f5;
  --bg-secondary: #d1daf0;
  --bg-card: rgba(255, 255, 255, 0.5);
  --bg-card-hover: rgba(255, 255, 255, 0.75);
  --modal-bg: rgba(255, 255, 255, 0.95);
  --text-primary: #1a2440;
  --text-secondary: #3d4f6e;
  --text-muted: #7889a8;
  --accent: #2563eb;
  --accent-hover: #3b82f6;
  --accent-rgb: 37, 99, 235;
  --accent-glow: rgba(37, 99, 235, 0.12);
  --accent-glow-strong: rgba(37, 99, 235, 0.22);
  --purple: #7c3aed;
  --purple-rgb: 124, 58, 237;
  --teal: #0d9488;
  --teal-rgb: 13, 148, 136;
  --border: rgba(79, 90, 180, 0.18);
  --border-hover: rgba(37, 99, 235, 0.35);
  --nav-bg: rgba(223, 230, 245, 0.85);
  --shadow: 0 8px 32px rgba(79, 90, 180, 0.12);
  --shadow-glow: 0 8px 32px rgba(37, 99, 235, 0.12);
  --form-bg: rgba(255, 255, 255, 0.7);
}

/* Light mode extra color accents */
[data-theme="light"] .section-label {
  background: linear-gradient(90deg, var(--accent), var(--purple));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

[data-theme="light"] .service-icon {
  background: linear-gradient(135deg, rgba(var(--accent-rgb), 0.15), rgba(var(--purple-rgb), 0.1));
}

[data-theme="light"] .project-tag {
  background: linear-gradient(135deg, rgba(var(--accent-rgb), 0.12), rgba(var(--purple-rgb), 0.08));
}

[data-theme="light"] .hero-name {
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent) 55%, var(--purple) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}


/* Light mode: softer dropdown shadow */
[data-theme="light"] .nav-links.open {
  box-shadow: var(--shadow);
}

/* ============================================
   RESET & BASE
   ============================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
  font-size: 16px;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  transition: background var(--transition), color var(--transition);
  overflow-x: hidden;
  position: relative;
}

a { color: var(--accent); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent-hover); }
img { max-width: 100%; height: auto; display: block; }

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ============================================
   ACCESSIBILITY
   ============================================ */
.skip-link {
  position: absolute;
  top: -100%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: #fff;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  z-index: 9999;
  transition: top 0.2s;
}
.skip-link:focus {
  top: 12px;
  color: #fff;
}

/* Focus visible for keyboard navigation */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* Respect reduced motion preferences */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
  [data-reveal] {
    opacity: 1 !important;
    transform: none !important;
  }
}

/* ============================================
   SCROLLBAR
   ============================================ */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

/* ============================================
   FLOATING ORBS (Decorative Background)
   ============================================ */
.page-content { position: relative; }

.orb {
  position: fixed;
  border-radius: 50%;
  filter: blur(100px);
  pointer-events: none;
  z-index: 0;
  will-change: transform;
}

.orb-1 {
  width: 500px;
  height: 500px;
  background: rgba(var(--accent-rgb), 0.08);
  top: 5%;
  right: -10%;
  animation: orb-float-1 30s ease-in-out infinite;
}

.orb-2 {
  width: 400px;
  height: 400px;
  background: rgba(var(--purple-rgb), 0.07);
  top: 50%;
  left: -12%;
  animation: orb-float-2 25s ease-in-out infinite;
}

.orb-3 {
  width: 350px;
  height: 350px;
  background: rgba(var(--teal-rgb), 0.05);
  bottom: 10%;
  right: 5%;
  animation: orb-float-3 22s ease-in-out infinite;
}

@keyframes orb-float-1 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(-40px, 30px) scale(1.05); }
  66% { transform: translate(25px, -20px) scale(0.95); }
}
@keyframes orb-float-2 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(35px, -25px) scale(1.08); }
}
@keyframes orb-float-3 {
  0%, 100% { transform: translate(0, 0); }
  40% { transform: translate(-20px, -30px); }
  80% { transform: translate(15px, 20px); }
}

/* ============================================
   NAVIGATION (Glass)
   ============================================ */
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--nav-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: all var(--transition);
}

.site-nav.scrolled {
  box-shadow: 0 4px 30px rgba(var(--accent-rgb), 0.06);
  border-bottom-color: rgba(var(--accent-rgb), 0.15);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

.nav-logo {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  display: inline-flex;
  align-items: center;
  min-height: 40px;
}
.nav-logo span { color: var(--accent); }

.nav-logo-img {
  height: 36px;
  width: auto;
  max-width: 210px;
  object-fit: contain;
  display: block;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color var(--transition);
  position: relative;
  padding: 4px 0;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  border-radius: 1px;
  transition: width var(--transition);
}

.nav-links a:hover,
.nav-links a.active { color: var(--text-primary); }
.nav-links a:hover::after,
.nav-links a.active::after { width: 100%; }

/* Theme Toggle */
.theme-toggle {
  background: var(--bg-card);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.1rem;
  transition: all var(--transition);
  color: var(--text-secondary);
}
.theme-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: 0 0 20px rgba(var(--accent-rgb), 0.2);
}

/* Hamburger */
.nav-hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  width: 40px;
  height: 40px;
  position: relative;
  flex-shrink: 0;
  z-index: 1001;
}
.nav-hamburger span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text-primary);
  transition: all var(--transition);
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}
.nav-hamburger span:nth-child(1) { top: 12px; }
.nav-hamburger span:nth-child(2) { top: 19px; }
.nav-hamburger span:nth-child(3) { top: 26px; }

.nav-hamburger.open span:nth-child(1) {
  transform: translateX(-50%) rotate(45deg);
  top: 19px;
}
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) {
  transform: translateX(-50%) rotate(-45deg);
  top: 19px;
}

/* Nav controls wrapper */
.nav-controls {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

/* Always use hamburger navigation on non-front pages (e.g. Impressum/Datenschutz) */
.site-nav.is-compact .nav-links {
  display: none;
}

.site-nav.is-compact .nav-hamburger {
  display: flex;
  align-items: center;
  justify-content: center;
}

.site-nav.is-compact .nav-links.open {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  padding: 12px 24px;
  gap: 8px;
  z-index: 1300;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.site-nav.is-compact .nav-links.open li {
  text-align: center;
}

.site-nav.is-compact .nav-links.open a {
  display: block;
  padding: 10px 18px;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  transition: all var(--transition);
  border-bottom: none;
}

.site-nav.is-compact .nav-links.open a:hover {
  background: var(--accent-glow);
  color: var(--accent);
}

/* ============================================
   HERO SECTION — Centered (no image column)
   ============================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 72px;
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.hero-split {
  display: flex;
  flex-direction: row;
  flex-wrap: nowrap;
  align-items: center;
  gap: 48px;
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
}

.hero-split .hero-image {
  flex: 0 0 300px;
  width: 300px;
  min-width: 300px;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15), 0 0 0 1px var(--border);
}

.hero-split .hero-image img {
  width: 100%;
  height: auto;
  display: block;
}

.hero-split .hero-text {
  flex: 1;
  text-align: left;
  z-index: 2;
}

.hero-greeting {
  font-size: 0.95rem;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-name {
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 8px;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent) 60%, var(--purple) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-title {
  font-size: clamp(1.15rem, 2.5vw, 1.5rem);
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 20px;
}

.hero-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 32px;
  max-width: 540px;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 30px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  border: 2px solid transparent;
  text-decoration: none;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.btn-primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  color: #fff;
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(var(--accent-rgb), 0.35);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border-color: var(--border);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
}
.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(var(--accent-rgb), 0.1);
}

/* SVG icons in buttons */
.btn svg {
  flex-shrink: 0;
}

.hero-socials {
  display: flex;
  gap: 12px;
}

.hero-socials a {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--bg-card);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: all var(--transition);
}
.hero-socials a:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(var(--accent-rgb), 0.2);
}

.hero-socials a svg {
  width: 22px;
  height: 22px;
  stroke-width: 2.2;
}

/* ============================================
   SECTION BASE
   ============================================ */
.section {
  padding: 100px 0;
  position: relative;
  z-index: 1;
}

.section-alt {
  background: var(--bg-secondary);
}

/* Soft gradient divider between sections */
.section + .section::before {
  content: '';
  display: block;
  position: absolute;
  top: 0;
  left: 15%;
  right: 15%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(var(--accent-rgb), 0.15), rgba(var(--purple-rgb), 0.1), transparent);
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-label {
  font-size: 0.85rem;
  color: var(--accent);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ============================================
   SCROLL REVEAL
   ============================================ */
[data-reveal] {
  opacity: 0;
  transform: translateY(40px);
  transition:
    opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

[data-reveal].revealed {
  opacity: 1;
  transform: translateY(0);
}

[data-reveal-delay="1"] { transition-delay: 0.1s; }
[data-reveal-delay="2"] { transition-delay: 0.2s; }
[data-reveal-delay="3"] { transition-delay: 0.3s; }
[data-reveal-delay="4"] { transition-delay: 0.4s; }
[data-reveal-delay="5"] { transition-delay: 0.5s; }

/* ============================================
   SERVICES — Glass Cards with SVG Icons
   ============================================ */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.service-card {
  background: var(--bg-card);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  position: relative;
  overflow: hidden;
  transition: all var(--transition);
  transform: perspective(800px) rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg));
  will-change: transform;
}

/* Subtle top gradient accent line on cards */
.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(var(--accent-rgb), 0.4), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}

.service-card:hover::before {
  opacity: 1;
}

/* Mouse-following glow inside card */
.card-glow {
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(
    400px circle at var(--mouse-x, 50%) var(--mouse-y, 50%),
    rgba(var(--accent-rgb), 0.12) 0%,
    transparent 60%
  );
  opacity: 0;
  transition: opacity var(--transition);
  pointer-events: none;
  z-index: 0;
}

.service-card:hover .card-glow,
.project-card:hover .card-glow { opacity: 1; }

.service-card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-glow);
}

.service-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, rgba(var(--accent-rgb), 0.18), rgba(var(--purple-rgb), 0.10));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--accent);
  position: relative;
  z-index: 1;
  transition: all var(--transition);
  border: 1px solid rgba(var(--accent-rgb), 0.15);
}

.service-icon svg {
  width: 28px;
  height: 28px;
  stroke-width: 1.8;
  filter: drop-shadow(0 0 4px rgba(var(--accent-rgb), 0.3));
}

.service-card:hover .service-icon {
  background: linear-gradient(135deg, rgba(var(--accent-rgb), 0.28), rgba(var(--purple-rgb), 0.18));
  box-shadow: 0 0 24px rgba(var(--accent-rgb), 0.25);
  border-color: rgba(var(--accent-rgb), 0.3);
  transform: scale(1.08);
}

.service-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 12px;
  position: relative;
  z-index: 1;
}

.service-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.65;
  position: relative;
  z-index: 1;
}

/* ============================================
   PROJECTS / PORTFOLIO — Glass Cards
   ============================================ */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(420px, 1fr));
  gap: 24px;
}

.project-card {
  background: var(--bg-card);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  position: relative;
  transition: all var(--transition);
  transform: perspective(800px) rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg));
  will-change: transform;
  color: var(--text-primary);
  text-decoration: none;
  display: block;
}

/* Subtle bottom gradient accent on project cards */
.project-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 20%;
  right: 20%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(var(--purple-rgb), 0.3), rgba(var(--accent-rgb), 0.3), transparent);
  opacity: 0;
  transition: opacity var(--transition), left var(--transition), right var(--transition);
}

.project-card:hover::after {
  opacity: 1;
  left: 5%;
  right: 5%;
}

.project-card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-glow);
  color: var(--text-primary);
}

.project-image {
  height: 180px;
  background: linear-gradient(135deg, var(--bg-secondary), rgba(var(--accent-rgb), 0.08));
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
  color: var(--accent);
}

.project-image svg {
  opacity: 0.5;
  transition: opacity var(--transition), transform var(--transition);
  filter: drop-shadow(0 0 8px rgba(var(--accent-rgb), 0.2));
}

.project-card:hover .project-image svg {
  opacity: 0.75;
  transform: scale(1.12);
  filter: drop-shadow(0 0 14px rgba(var(--accent-rgb), 0.35));
}

.project-info {
  padding: 24px;
  position: relative;
  z-index: 1;
}

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

.project-info p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.65;
  margin-bottom: 16px;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.project-tag {
  background: var(--accent-glow);
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 20px;
  transition: all var(--transition);
}

.project-card:hover .project-tag {
  background: var(--accent-glow-strong);
}

/* ============================================
   PROCESS SECTION
   ============================================ */
.process-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.process-step {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
}

.process-number {
  display: inline-block;
  font-weight: 800;
  font-size: 1rem;
  letter-spacing: 0.06em;
  color: var(--accent);
  margin-bottom: 10px;
}

.process-step h3 {
  font-size: 1.08rem;
  margin-bottom: 10px;
}

.process-step p {
  color: var(--text-secondary);
  line-height: 1.65;
  font-size: 0.94rem;
}

/* ============================================
   TRUST SECTION
   ============================================ */
.trust-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-bottom: 26px;
}

.trust-stat {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  text-align: center;
}

.trust-stat strong {
  display: block;
  font-size: 1.5rem;
  line-height: 1.15;
  color: var(--accent);
  margin-bottom: 6px;
}

.trust-stat span {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.testimonial-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
}

.testimonial-card p {
  color: var(--text-primary);
  line-height: 1.7;
  margin-bottom: 12px;
}

.testimonial-card h4 {
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* ============================================
   MOBILE STICKY CTA
   ============================================ */
.mobile-sticky-cta {
  display: none;
}

/* ============================================
   ABOUT — Clean single-column layout
   ============================================ */
.about-content {
  max-width: 720px;
  margin: 0 auto;
}

.about-text {
  margin-bottom: 40px;
}

.about-text h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 16px;
  text-align: center;
}

.about-text p {
  color: var(--text-secondary);
  margin-bottom: 16px;
  line-height: 1.7;
  text-align: center;
}

/* ============================================
   TECH STACK — with SVG Icons
   ============================================ */
.tech-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
}

.tech-badge {
  background: var(--bg-card);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 22px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all var(--transition);
  cursor: default;
}
.tech-badge:hover {
  border-color: var(--border-hover);
  color: var(--text-primary);
  transform: translateY(-3px);
  box-shadow: 0 6px 16px rgba(var(--accent-rgb), 0.08);
}

/* Subtle shimmer on tech badges */
@keyframes badge-shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

.tech-badge:hover {
  background-image: linear-gradient(
    90deg,
    var(--bg-card) 0%,
    rgba(var(--accent-rgb), 0.06) 50%,
    var(--bg-card) 100%
  );
  background-size: 200% 100%;
  animation: badge-shimmer 2s ease-in-out;
}

.tech-badge .tech-icon {
  display: flex;
  align-items: center;
  color: var(--accent);
  filter: drop-shadow(0 0 3px rgba(var(--accent-rgb), 0.25));
}

.tech-badge .tech-icon svg {
  width: 20px;
  height: 20px;
  stroke-width: 2.2;
}

/* ============================================
   CONTACT / CTA
   ============================================ */
.contact-box {
  background: var(--bg-card);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 64px 48px;
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
  position: relative;
  overflow: hidden;
}

/* Subtle gradient accent + breathing animation (merged rule) */
.contact-box::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent 5%, var(--accent), var(--purple), var(--teal), transparent 95%);
  animation: contact-breathe 6s ease-in-out infinite;
}

@keyframes contact-breathe {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 0.9; }
}

.contact-box h3 {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.contact-box p {
  color: var(--text-secondary);
  margin-bottom: 32px;
  font-size: 1.05rem;
  line-height: 1.7;
}

.contact-links {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.contact-box .contact-links {
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

.contact-form {
  margin: 0 auto 24px;
  max-width: 620px;
  text-align: left;
}

.contact-form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 12px;
}

.contact-form label {
  display: block;
  margin-bottom: 12px;
}

.contact-form label span {
  display: block;
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin-bottom: 6px;
  font-weight: 600;
}

.contact-form > label {
  margin-top: 4px;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--form-bg);
  color: var(--text-primary);
  font: inherit;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(var(--accent-rgb), 0.18);
}

.contact-form textarea {
  resize: vertical;
  min-height: 132px;
}

.contact-feedback {
  margin: 0 auto 16px;
  max-width: 620px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  border: 1px solid transparent;
}

.contact-feedback.success {
  color: #7cf2c4;
  border-color: rgba(16, 185, 129, 0.5);
  background: rgba(16, 185, 129, 0.12);
}

.contact-feedback.error {
  color: #fdb3b3;
  border-color: rgba(239, 68, 68, 0.5);
  background: rgba(239, 68, 68, 0.12);
}

.contact-honeypot {
  position: absolute !important;
  left: -10000px !important;
  opacity: 0 !important;
  pointer-events: none !important;
}

/* Light mode: readable feedback colors */
[data-theme="light"] .contact-feedback.success {
  color: #047857;
  border-color: rgba(16, 185, 129, 0.4);
  background: rgba(16, 185, 129, 0.1);
}

[data-theme="light"] .contact-feedback.error {
  color: #b91c1c;
  border-color: rgba(239, 68, 68, 0.35);
  background: rgba(239, 68, 68, 0.08);
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 32px 0;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
  position: relative;
  z-index: 1;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 4px;
}

.footer-links a {
  color: var(--text-muted);
  font-size: 0.8rem;
  transition: color var(--transition);
}

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

.footer-sep {
  color: var(--text-muted);
  font-size: 0.8rem;
}

/* Legal pages (Impressum, Datenschutz) */
.legal-content {
  max-width: 720px;
  margin: 0 auto;
}

.legal-content h1 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 32px;
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent) 60%, var(--purple) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.legal-content h2, .legal-content h3 {
  margin-top: 32px;
  margin-bottom: 12px;
  font-weight: 600;
}

.legal-content h4 {
  margin-top: 20px;
  margin-bottom: 8px;
  font-weight: 600;
}

.legal-content p {
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 12px;
}

/* Hide WP admin bar in frontend */
#wpadminbar { display: none !important; }
html.admin-bar { margin-top: 0 !important; }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .nav-links { display: none; }
  .nav-hamburger { display: flex; align-items: center; justify-content: center; }

  .nav-links.open {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    padding: 12px 24px;
    gap: 8px;
    z-index: 1300;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
  }

  .nav-links.open li {
    text-align: center;
  }

  .nav-links.open a {
    display: block;
    padding: 10px 18px;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    border-bottom: none;
  }

  .nav-links.open a:hover {
    background: var(--accent-glow);
    color: var(--accent);
  }

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

  .hero {
    min-height: auto;
    padding-top: 100px;
    padding-bottom: 60px;
  }

  body.error404 .hero {
    min-height: 50vh;
    display: flex;
    align-items: center;
  }

  .hero-split {
    flex-direction: column;
    gap: 32px;
    text-align: center;
  }
  .hero-split .hero-text {
    text-align: center;
  }
  .hero-split .hero-buttons { justify-content: center; }
  .hero-split .hero-socials { justify-content: center; }

  .hero-name { font-size: clamp(1.8rem, 8vw, 2.6rem); }
  .hero-title { font-size: 1.1rem; margin-bottom: 16px; }
  .hero-desc {
    font-size: 0.95rem;
    margin-bottom: 24px;
  }

  .section-title { font-size: 1.6rem; }
  .section-subtitle { font-size: 0.95rem; }
  .section-header { margin-bottom: 40px; }

  .services-grid { grid-template-columns: 1fr; gap: 16px; }
  .service-card { padding: 24px; }

  .projects-grid { grid-template-columns: 1fr; }
  .project-image { height: 140px; }
  .project-info { padding: 20px; }

  .process-grid { grid-template-columns: 1fr; }
  .trust-stats { grid-template-columns: repeat(2, 1fr); }
  .testimonial-grid { grid-template-columns: 1fr; }

  .about-text h3 { font-size: 1.3rem; }
  .about-text p { font-size: 0.95rem; }

  .tech-grid { justify-content: center; }
  .tech-badge { padding: 10px 16px; font-size: 0.85rem; }

  .contact-box { padding: 36px 20px; }
  .contact-box h3 { font-size: 1.4rem; }
  .contact-box p { font-size: 0.95rem; }
  .contact-form-grid { grid-template-columns: 1fr; }

  .section { padding: 60px 0; }

  /* Hide orbs on mobile for performance */
  .orb { display: none; }

  /* Subtle gradient replacement for orbs */
  .page-content {
    background:
      radial-gradient(ellipse at 20% 10%, rgba(var(--accent-rgb), 0.03) 0%, transparent 50%),
      radial-gradient(ellipse at 80% 90%, rgba(var(--purple-rgb), 0.025) 0%, transparent 50%);
  }

  /* Disable 3D tilt on mobile */
  .service-card, .project-card {
    transform: none !important;
  }

  /* Footer mobile */
  .site-footer { padding: 24px 0; font-size: 0.8rem; }
}

@keyframes stickyFadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 768px) {
  .mobile-sticky-cta {
    position: fixed;
    bottom: 12px;
    left: 12px;
    right: 12px;
    z-index: 1200;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    padding: 8px;
    border: 1px solid var(--border);
    border-radius: 14px;
    background: var(--nav-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    animation: stickyFadeIn 0.4s ease-out;
  }

  .mobile-cta-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px;
    border-radius: 10px;
    font-size: 0.9rem;
    font-weight: 700;
    color: #fff;
    background: var(--accent);
  }

  .mobile-cta-btn.mobile-cta-outline {
    background: var(--accent);
    color: #fff;
    border: none;
  }

  /* Sticky-bar footer spacing */
  body.home .site-footer { padding-bottom: 90px; }

  /* F3: Better form label size on smaller screens */
  .contact-form label span { font-size: 0.9rem; }
}

@media (max-width: 480px) {
  .nav-logo-img { height: 32px; max-width: 160px; }
  .hero-split .hero-image { flex: 0 0 auto; width: 100%; max-width: 280px; margin: 0 auto 24px; }
  .hero-name { font-size: 1.8rem; }
  .hero-buttons { flex-direction: column; align-items: stretch; }
  .btn { width: 100%; justify-content: center; }
  .section { padding: 48px 0; }
  .section-title { font-size: 1.4rem; }
  .contact-box { padding: 28px 16px; }
  .contact-links { flex-direction: column; align-items: stretch; }
  .tech-grid { gap: 8px; }
  .tech-badge { padding: 8px 14px; font-size: 0.8rem; }

  /* D4: Single column trust-stats on phones */
  .trust-stats { grid-template-columns: 1fr; }
}

/* ============================================
   PROJECT MODAL — Detail Overlay
   ============================================ */
.project-modal-trigger {
  cursor: pointer;
}

.project-detail-icon {
  vertical-align: middle;
  opacity: 0.35;
  transition: opacity var(--transition);
  margin-left: 4px;
}

.project-modal-trigger:hover .project-detail-icon {
  opacity: 0.7;
}

.project-modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.project-modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.project-modal {
  background: var(--modal-bg, var(--bg-card));
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  max-width: 560px;
  width: 90vw;
  max-height: 85vh;
  overflow-y: auto;
  padding: 32px;
  position: relative;
  transform: translateY(20px) scale(0.97);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.3);
}

.project-modal-overlay.active .project-modal {
  transform: translateY(0) scale(1);
}

.project-modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 1.8rem;
  cursor: pointer;
  line-height: 1;
  padding: 4px 8px;
  border-radius: 8px;
  transition: color var(--transition), background var(--transition);
}

.project-modal-close:hover {
  color: var(--text-primary);
  background: rgba(var(--accent-rgb), 0.1);
}

.project-modal-header {
  margin-bottom: 20px;
  padding-right: 32px;
}

.project-modal-title {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
}

.project-modal-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 24px;
  white-space: pre-line;
}

.project-modal-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.project-modal-tags .project-tag {
  background: var(--accent-glow);
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 20px;
}

@media (max-width: 480px) {
  .project-modal {
    padding: 24px 20px;
    max-height: 90vh;
  }
  .project-modal-title { font-size: 1.15rem; }
}