:root {
  /* Color Palette Definitions */
  /* Dark Mode Colors */
  --bg-color-dark: #0d1117;
  --card-bg-dark: rgba(22, 27, 34, 0.6);
  --card-border-dark: rgba(240, 246, 252, 0.1);
  --text-main-dark: #f0f6fc;
  --text-secondary-dark: #8b949e;
  --accent-color-dark: #58a6ff;
  --accent-glow-dark: rgba(88, 166, 255, 0.15);
  --brand-threema-dark: #00d1cd;
  --brand-session-dark: #00ff00;

  /* Light Mode Colors */
  --bg-color-light: #f6f8fa;
  --card-bg-light: rgba(255, 255, 255, 0.7);
  --card-border-light: rgba(1, 4, 9, 0.1);
  --text-main-light: #24292f;
  --text-secondary-light: #57606a;
  --accent-color-light: #0969da;
  --accent-glow-light: rgba(9, 105, 218, 0.15);
  --brand-threema-light: #009c99;
  --brand-session-light: #00c200;

  /* Shared Colors */
  --brand-github: #24292e;
  --brand-linkedin: #0077b5;

  /* Typography */
  --font-family: 'Outfit', sans-serif;

  /* Transitions */
  --transition-speed: 0.3s;
  --hover-transform: translateY(-4px);

  /* DEFAULT THEME (Dark) */
  --bg-color: var(--bg-color-dark);
  --card-bg: var(--card-bg-dark);
  --card-border: var(--card-border-dark);
  --text-main: var(--text-main-dark);
  --text-secondary: var(--text-secondary-dark);
  --accent-color: var(--accent-color-dark);
  --accent-glow: var(--accent-glow-dark);
  --brand-threema: var(--brand-threema-dark);
  --brand-session: var(--brand-session-dark);
}

@media (prefers-color-scheme: light) {
  :root {
    --bg-color: var(--bg-color-light);
    --card-bg: var(--card-bg-light);
    --card-border: var(--card-border-light);
    --text-main: var(--text-main-light);
    --text-secondary: var(--text-secondary-light);
    --accent-color: var(--accent-color-light);
    --accent-glow: var(--accent-glow-light);
    --brand-threema: var(--brand-threema-light);
    --brand-session: var(--brand-session-light);
  }
}

/* Forced Light Mode */
html[data-theme="light"] {
  --bg-color: var(--bg-color-light);
  --card-bg: var(--card-bg-light);
  --card-border: var(--card-border-light);
  --text-main: var(--text-main-light);
  --text-secondary: var(--text-secondary-light);
  --accent-color: var(--accent-color-light);
  --accent-glow: var(--accent-glow-light);
  --brand-threema: var(--brand-threema-light);
  --brand-session: var(--brand-session-light);
}

/* Forced Dark Mode */
html[data-theme="dark"] {
  --bg-color: var(--bg-color-dark);
  --card-bg: var(--card-bg-dark);
  --card-border: var(--card-border-dark);
  --text-main: var(--text-main-dark);
  --text-secondary: var(--text-secondary-dark);
  --accent-color: var(--accent-color-dark);
  --accent-glow: var(--accent-glow-dark);
  --brand-threema: var(--brand-threema-dark);
  --brand-session: var(--brand-session-dark);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
}

html {
  background-color: var(--bg-color);
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-color);
  color: var(--text-main);
  line-height: 1.6;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 2rem;
  overflow-x: hidden;
  position: relative;
}

/* Background Effects */
.background-effects {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}

.glow-sphere {
  position: absolute;
  width: 90vmax;
  height: 90vmax;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.4;
  animation: floating 20s infinite ease-in-out;
}

.sphere-1 {
  background: radial-gradient(circle, #58a6ff 0%, transparent 70%);
  top: -20vmax;
  left: -20vmax;
}

.sphere-2 {
  background: radial-gradient(circle, #7ee787 0%, transparent 70%);
  bottom: -20vmax;
  right: -20vmax;
  animation-delay: -5s;
}

@keyframes floating {

  0%,
  100% {
    transform: translate(0, 0);
  }

  50% {
    transform: translate(50px, 50px);
  }
}

/* Bento Grid Layout */
.bento-container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-template-rows: repeat(2, auto);
  gap: 1.5rem;
  max-width: 1200px;
  width: 100%;
  margin-bottom: 2rem;
}

/* Mobile: Single column */
@media (max-width: 768px) {
  .bento-container {
    grid-template-columns: 1fr;
    grid-template-rows: auto;
  }
}

/* Cards */
.bento-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: 24px;
  padding: 2rem;
  position: relative;
  overflow: hidden;
  transition: transform var(--transition-speed), border-color var(--transition-speed), box-shadow var(--transition-speed);
}

.bento-card:hover {
  transform: var(--hover-transform);
  border-color: rgba(240, 246, 252, 0.2);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

/* Hero Section */
.hero-card {
  grid-column: span 2;
  /* Takes up 2 columns */
  grid-row: span 2;
  /* Takes up 2 rows */
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: linear-gradient(145deg, rgba(22, 27, 34, 0.8), rgba(22, 27, 34, 0.4));
}

@media (max-width: 1024px) {
  .hero-card {
    grid-column: span 4;
  }
}

@media (max-width: 768px) {
  .hero-card {
    grid-column: span 1;
    grid-row: auto;
  }
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(126, 231, 135, 0.1);
  color: #7ee787;
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 1.5rem;
  width: fit-content;
  border: 1px solid rgba(126, 231, 135, 0.2);
}

.pulse {
  width: 8px;
  height: 8px;
  background-color: #7ee787;
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(126, 231, 135, 0.4);
  }

  70% {
    box-shadow: 0 0 0 10px rgba(126, 231, 135, 0);
  }

  100% {
    box-shadow: 0 0 0 0 rgba(126, 231, 135, 0);
  }
}

.hero-content h1 {
  font-size: 3.5rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
  background: linear-gradient(to right, #f0f6fc, #b1b1b1);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -0.02em;
}

.hero-content .tagline {
  font-size: 1.5rem;
  color: var(--text-main);
  margin-bottom: 1rem;
  font-weight: 600;
}

.hero-content .bio {
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin-bottom: 2rem;
  max-width: 500px;
  line-height: 1.7;
}

.action-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 12px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.2s ease;
}

.action-btn.primary {
  background: var(--text-main);
  color: var(--bg-color);
}

.action-btn.primary:hover {
  background: #f0f6fc;
  transform: scale(1.02);
}

/* Social Cards (Github & LinkedIn) */
.social-card {
  grid-column: span 1;
  grid-row: span 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  text-decoration: none;
  color: var(--text-main);
  min-height: 200px;
}

.github-card:hover {
  border-color: rgba(240, 246, 252, 0.3);
}

.linkedin-card:hover {
  border-color: rgba(0, 119, 181, 0.5);
}

.card-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.card-label {
  font-size: 1.25rem;
  font-weight: 600;
}

.card-arrow {
  align-self: flex-end;
  opacity: 0;
  transform: translateX(-10px);
  transition: all 0.3s ease;
  color: var(--text-secondary);
}

.social-card:hover .card-arrow {
  opacity: 1;
  transform: translateX(0);
}

/* Contact Cards (Threema & Session) */
.contact-card {
  grid-column: span 1;
  grid-row: span 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 200px;
}

/* Adjust grid for Threema/Session to sit nicely with social cards */
/* Layout logic: Hero (2x2), Github (1x1), LinkedIn (1x1), Threema (1x1), Session (1x1) */
/* This fits a 4-column grid if organized correctly. */

.card-header {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.threema-card .card-header i {
  color: var(--brand-threema);
}

.session-card .card-header i {
  color: var(--brand-session);
}

.code-display {
  background: rgba(0, 0, 0, 0.3);
  padding: 8px 12px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border: 1px solid rgba(240, 246, 252, 0.05);
  margin-bottom: 0.5rem;
}

.code-display .code {
  font-family: 'Courier New', monospace;
  font-size: 0.9rem;
  color: var(--text-secondary);
  letter-spacing: 0.5px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 200px;
  /* Adjust based on your card width */
}

@media (max-width: 400px) {
  .code-display .code {
    max-width: 150px;
  }
}

.copy-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  transition: color 0.2s;
  padding: 4px;
}

.copy-btn:hover {
  color: var(--text-main);
}

.small-note {
  font-size: 0.8rem;
  color: var(--text-secondary);
  opacity: 0.7;
}

/* Footer */
footer {
  margin-top: auto;
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.9rem;
  opacity: 0.8;
  padding-bottom: 2rem;
}

footer a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.2s;
  margin: 0 5px;
}

footer a:hover {
  color: var(--text-main);
  text-decoration: underline;
}

.mobile-break {
  display: none;
}

@media (max-width: 480px) {
  .mobile-break {
    display: block;
    margin-bottom: 0.5rem;
  }
}

/* Theme Toggle Button */
.theme-toggle {
  position: fixed;
  top: 2rem;
  right: 2rem;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  color: var(--text-main);
  width: 50px;
  height: 50px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  cursor: pointer;
  z-index: 1000;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: all 0.3s ease;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.theme-toggle:hover {
  transform: scale(1.1);
  background: var(--text-main);
  color: var(--bg-color);
}

@media (max-width: 768px) {
  .theme-toggle {
    top: 1rem;
    right: 1rem;
    width: 40px;
    height: 40px;
    font-size: 1.2rem;
  }
}

/* Copy Toast Notification */
.copy-toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--text-main);
  color: var(--bg-color);
  padding: 10px 20px;
  border-radius: 30px;
  font-weight: 600;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
  opacity: 0;
  transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  z-index: 2000;
  pointer-events: none;
  display: flex;
  align-items: center;
  gap: 8px;
}

.copy-toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.copy-toast i {
  color: #7ee787;
  /* Success color */
}

/* Smooth Theme Support */
html.smooth-transition body {
  transition: background-color var(--transition-speed) ease, color var(--transition-speed) ease;
}

html.smooth-transition .bento-card {
  transition: transform var(--transition-speed), border-color var(--transition-speed), box-shadow var(--transition-speed), background-color var(--transition-speed);
}

html.smooth-transition .policy-container {
  transition: background-color var(--transition-speed) ease, border-color var(--transition-speed) ease, color var(--transition-speed) ease;
}

html.smooth-transition .social-card,
html.smooth-transition .contact-card {
  transition: background-color var(--transition-speed) ease, border-color var(--transition-speed) ease, color var(--transition-speed) ease;
}