/* ==========================================================================
   Andelser Custom CSS Design System
   ========================================================================== */

/* Design Tokens & Variables */
:root {
  /* HSL Tailored Color Palette (Dark Theme Default) */
  --bg-color: hsl(240, 10%, 4%);
  --bg-rgb: 10, 10, 12;
  --surface: hsl(240, 8%, 7%);
  --surface-rgb: 17, 17, 19;
  --surface-glass: hsla(240, 8%, 7%, 0.75);
  --border: hsla(0, 0%, 100%, 0.07);
  --border-active: hsla(0, 0%, 100%, 0.15);
  
  --text-primary: hsl(0, 0%, 98%);
  --text-secondary: hsl(240, 4%, 60%);
  --text-muted: hsl(240, 3%, 45%);
  
  /* Brand/Accent Colors (Sonderwave Blue & Muted Metals) */
  --accent: hsl(195, 85%, 50%);
  --accent-rgb: 19, 192, 236;
  --accent-glow: hsla(195, 85%, 50%, 0.15);
  
  /* Ambient Background Glows */
  --glow-orb-2: hsl(260, 60%, 40%);
  --glow-blend-mode: screen;
  --glow-opacity: 0.15;

  /* Component specific theme tokens */
  --btn-secondary-hover-bg: hsla(0, 0%, 100%, 0.03);
  --btn-primary-hover-shadow: rgba(255, 255, 255, 0.1);
  --btn-contact-nav-hover-bg: hsla(0, 0%, 100%, 0.04);
  --card-shadow-hover: rgba(0, 0, 0, 0.8);
  --card-glow-color: hsla(195, 85%, 50%, 0.05);
  --card-border-glow-color: hsla(195, 85%, 50%, 0.18);
  --app-icon-bg: #0c0c0e;
  --project-visual-bg: #08080a;
  --email-display-bg: #0c0c0e;
  --pill-bg: hsla(0, 0%, 100%, 0.03);
  --store-badge-bg: hsla(0, 0%, 100%, 0.02);
  --store-badge-hover-bg: hsla(0, 0%, 100%, 0.05);
  --skeleton-glow-color: hsla(0, 0%, 100%, 0.03);
  --skeleton-border-glow-color: hsla(0, 0%, 100%, 0.08);
  --blueprint-grid-color: hsla(0, 0%, 100%, 0.1);
  --btn-copy-hover-bg: hsla(0, 0%, 100%, 0.02);

  /* Fonts */
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-display: 'Outfit', var(--font-sans);
  
  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 0.8s cubic-bezier(0.16, 1, 0.3, 1);
  
  /* Header Dimensions */
  --header-height: 80px;
}

/* Responsive Light Theme Overrides */
@media (prefers-color-scheme: light) {
  :root {
    --bg-color: hsl(240, 15%, 97%);
    --bg-rgb: 247, 247, 249;
    --surface: hsl(0, 0%, 100%);
    --surface-rgb: 255, 255, 255;
    --surface-glass: hsla(0, 0%, 100%, 0.8);
    --border: hsla(240, 10%, 10%, 0.08);
    --border-active: hsla(240, 10%, 10%, 0.16);
    
    --text-primary: hsl(240, 10%, 10%);
    --text-secondary: hsl(240, 5%, 38%);
    --text-muted: hsl(240, 4%, 55%);
    
    /* Slightly deeper cyan blue for perfect contrast/accessibility in Light Mode */
    --accent: hsl(195, 90%, 42%);
    --accent-rgb: 10, 149, 191;
    --accent-glow: hsla(195, 90%, 42%, 0.08);
    
    /* Ambient Background Glows (Softer, blended pastel glows) */
    --glow-orb-2: hsl(260, 75%, 85%);
    --glow-blend-mode: normal;
    --glow-opacity: 0.25;

    /* Component specific theme tokens */
    --btn-secondary-hover-bg: hsla(0, 0%, 0%, 0.03);
    --btn-primary-hover-shadow: rgba(0, 0, 0, 0.08);
    --btn-contact-nav-hover-bg: hsla(0, 0%, 0%, 0.04);
    --card-shadow-hover: rgba(0, 0, 0, 0.06);
    --card-glow-color: hsla(195, 90%, 42%, 0.03);
    --card-border-glow-color: hsla(195, 90%, 42%, 0.12);
    --app-icon-bg: hsl(240, 10%, 95%);
    --project-visual-bg: hsl(240, 10%, 96%);
    --email-display-bg: hsl(240, 10%, 94%);
    --pill-bg: hsla(0, 0%, 0%, 0.03);
    --store-badge-bg: hsla(0, 0%, 0%, 0.01);
    --store-badge-hover-bg: hsla(0, 0%, 0%, 0.04);
    --skeleton-glow-color: hsla(0, 0%, 0%, 0.015);
    --skeleton-border-glow-color: hsla(0, 0%, 0%, 0.04);
    --blueprint-grid-color: hsla(240, 10%, 10%, 0.05);
    --btn-copy-hover-bg: hsla(0, 0%, 0%, 0.02);
  }
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  background-color: var(--bg-color);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
}

body {
  overflow-x: hidden;
  background-color: var(--bg-color);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Structure & Containers */
.container {
  width: 100%;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

/* Typography Base */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

p {
  color: var(--text-secondary);
}

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

/* Ambient Backdrop Lights */
.glow-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.glow-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(140px);
  opacity: var(--glow-opacity);
  mix-blend-mode: var(--glow-blend-mode);
}

.glow-1 {
  width: 600px;
  height: 600px;
  top: -100px;
  left: -100px;
  background: radial-gradient(circle, var(--accent) 0%, transparent 70%);
  animation: floatOrb1 20s infinite alternate ease-in-out;
}

.glow-2 {
  width: 500px;
  height: 500px;
  bottom: -100px;
  right: -50px;
  background: radial-gradient(circle, var(--glow-orb-2) 0%, transparent 70%);
  animation: floatOrb2 25s infinite alternate ease-in-out;
}

@keyframes floatOrb1 {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(100px, 80px) scale(1.1); }
}

@keyframes floatOrb2 {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(-80px, -100px) scale(1.15); }
}

/* Utility Animations */
.scroll-reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.scroll-reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 0.95rem;
  padding: 12px 24px;
  border-radius: 8px;
  cursor: pointer;
  transition: background-color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
  outline: none;
}

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

.btn-primary:hover {
  background-color: transparent;
  color: var(--text-primary);
  box-shadow: 0 4px 20px var(--btn-primary-hover-shadow);
  transform: translateY(-1px);
}

.btn-secondary {
  background-color: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  border-color: var(--text-primary);
  background-color: var(--btn-secondary-hover-bg);
  transform: translateY(-1px);
}

.btn-icon {
  transition: transform var(--transition-fast);
}

.btn:hover .btn-icon {
  transform: translate(2px, -2px);
}

/* Floating Blurred Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  display: flex;
  align-items: center;
  z-index: 100;
  border-bottom: 1px solid transparent;
  transition: background-color var(--transition-smooth), border-color var(--transition-smooth), height var(--transition-smooth);
}

.header.scrolled {
  background-color: var(--surface-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-color: var(--border);
  height: 70px;
}

.header-container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-primary);
}

.brand-logo {
  color: var(--text-primary);
  transition: transform var(--transition-smooth);
}

.brand:hover .brand-logo {
  transform: rotate(3deg) scale(1.05);
}

.brand-name {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 500;
  letter-spacing: -0.01em;
}

.nav-desktop {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
  position: relative;
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 1px;
  background-color: var(--text-primary);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--transition-fast);
}

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

.nav-link:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.btn-contact-nav {
  padding: 6px 16px;
  border: 1px solid var(--border);
  border-radius: 20px;
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.btn-contact-nav::after {
  display: none;
}

.btn-contact-nav:hover {
  border-color: var(--text-primary);
  background-color: var(--btn-contact-nav-hover-bg);
}

/* Mobile Hamburger Toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 110;
}

.hamburger {
  display: block;
  width: 20px;
  height: 2px;
  background-color: var(--text-primary);
  position: relative;
  transition: background-color var(--transition-fast);
}

.hamburger::before,
.hamburger::after {
  content: "";
  display: block;
  width: 20px;
  height: 2px;
  background-color: var(--text-primary);
  position: absolute;
  transition: transform var(--transition-fast), top var(--transition-fast);
}

.hamburger::before {
  top: -6px;
}

.hamburger::after {
  top: 6px;
}

/* Hamburger active state */
.nav-toggle[aria-expanded="true"] .hamburger {
  background-color: transparent;
}

.nav-toggle[aria-expanded="true"] .hamburger::before {
  transform: rotate(45deg);
  top: 0;
}

.nav-toggle[aria-expanded="true"] .hamburger::after {
  transform: rotate(-45deg);
  top: 0;
}

/* Mobile Menu Dropdown */
.mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background-color: var(--bg-color);
  z-index: 90;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-smooth), visibility var(--transition-smooth);
}

.mobile-menu.open {
  opacity: 1;
  visibility: visible;
}

.nav-mobile {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 32px;
  text-align: center;
}

.mobile-nav-link {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 400;
  color: var(--text-secondary);
  transition: color var(--transition-fast), transform var(--transition-fast);
}

.mobile-nav-link:hover {
  color: var(--text-primary);
  transform: scale(1.05);
}

/* Hero Section Styles */
.hero-section {
  position: relative;
  padding-top: calc(var(--header-height) + 60px);
  padding-bottom: 100px;
  min-height: 85vh;
  display: flex;
  align-items: center;
  z-index: 1;
}

.hero-container {
  display: flex;
  align-items: center;
}

.hero-badge {
  display: inline-block;
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 4px 16px;
  margin-bottom: 24px;
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 4.25rem);
  font-weight: 400;
  line-height: 1.1;
  margin-bottom: 24px;
  max-width: 900px;
}

.hero-subtitle {
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 40px;
  max-width: 720px;
  font-weight: 300;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

/* General Sections Layout */
.work-section,
.about-section {
  padding-top: 100px;
  padding-bottom: 100px;
  position: relative;
  z-index: 1;
}

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

.section-subtitle {
  display: block;
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin-bottom: 8px;
}

.section-title {
  font-size: clamp(2rem, 3.5vw, 3rem);
  font-weight: 500;
  line-height: 1.2;
}

/* Premium Project Grid */
.project-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
}

/* Master Premium Card Styling */
.project-card {
  position: relative;
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  overflow: hidden;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  min-height: 500px;
  transition: border-color var(--transition-smooth), box-shadow var(--transition-smooth);
}

.project-card:hover {
  border-color: var(--border-active);
  box-shadow: 0 10px 40px -20px var(--card-shadow-hover);
}

/* Interactive Border Glow Mask (Cursor tracking) */
.project-card .card-glow {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  background: radial-gradient(
    600px circle at var(--mouse-x, 0px) var(--mouse-y, 0px),
    var(--card-glow-color),
    transparent 45%
  );
  z-index: 1;
  opacity: 0;
  transition: opacity var(--transition-smooth);
}

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

/* Standard HTML Mask for precise glowing line on card boundary */
.project-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border-radius: inherit;
  pointer-events: none;
  background: radial-gradient(
    500px circle at var(--mouse-x, 0px) var(--mouse-y, 0px),
    var(--card-border-glow-color),
    transparent 50%
  );
  border: 1px solid transparent;
  -webkit-mask: linear-gradient(#fff, #fff) padding-box, linear-gradient(#fff, #fff);
  mask: linear-gradient(#fff, #fff) padding-box, linear-gradient(#fff, #fff);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  z-index: 3;
  opacity: 0;
  transition: opacity var(--transition-smooth);
}

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

/* Card Content Details */
.project-card-content {
  padding: 48px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  z-index: 2;
  position: relative;
}

.project-brand-row {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
}

.app-icon-wrapper {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background-color: var(--app-icon-bg);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.app-icon {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.project-identity {
  display: flex;
  flex-direction: column;
}

.project-name {
  font-size: 1.5rem;
  font-weight: 500;
  line-height: 1.1;
}

.project-url {
  font-size: 0.9rem;
  color: var(--accent);
  transition: opacity var(--transition-fast);
}

.project-url:hover {
  opacity: 0.8;
}

.project-tag {
  margin-left: auto;
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid var(--card-border-glow-color);
  background-color: var(--card-glow-color);
  padding: 3px 10px;
  border-radius: 12px;
}

.project-tagline {
  font-size: 1.35rem;
  font-weight: 400;
  line-height: 1.3;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.value-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}

.value-pill {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-secondary);
  background-color: var(--pill-bg);
  border: 1px solid var(--border);
  padding: 4px 10px;
  border-radius: 12px;
}

.project-description {
  font-size: 0.95rem;
  line-height: 1.5;
  color: var(--text-secondary);
  margin-bottom: 24px;
  font-weight: 300;
}

.project-features-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 32px;
}

.project-features-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.feature-icon {
  color: var(--accent);
  margin-top: 2px;
  flex-shrink: 0;
}

.project-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 24px;
}

.app-store-badges {
  display: flex;
  align-items: center;
  gap: 12px;
}

.store-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 500;
  border: 1px solid var(--border);
  background-color: var(--store-badge-bg);
  color: var(--text-secondary);
  padding: 10px 14px;
  border-radius: 8px;
  transition: border-color var(--transition-fast), color var(--transition-fast), background-color var(--transition-fast);
}

.store-badge:hover {
  border-color: var(--text-primary);
  color: var(--text-primary);
  background-color: var(--store-badge-hover-bg);
}

.store-svg {
  color: inherit;
}

/* Card Visual Graphic Side */
.project-visual-wrapper {
  position: relative;
  background-color: var(--project-visual-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  border-left: 1px solid var(--border);
  padding: 40px;
}

.visual-container {
  width: 100%;
  max-width: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  transition: transform var(--transition-smooth);
}

.project-card:hover .visual-container {
  transform: scale(1.03);
}

.project-visual-image {
  width: 100%;
  height: auto;
  max-height: 350px;
  object-fit: contain;
}

/* Blueprint Skeleton Future Card */
.skeleton-card {
  grid-template-columns: 1fr;
  min-height: auto;
  background-color: transparent;
  border: 1px dashed var(--border);
}

.skeleton-card .card-glow {
  background: radial-gradient(
    600px circle at var(--mouse-x, 0px) var(--mouse-y, 0px),
    var(--skeleton-glow-color),
    transparent 45%
  );
}

.skeleton-card::before {
  background: radial-gradient(
    500px circle at var(--mouse-x, 0px) var(--mouse-y, 0px),
    var(--skeleton-border-glow-color),
    transparent 50%
  );
}

/* Elegant Blueprint Grid Background Pattern (Draft paper aesthetic) */
.blueprint-lines {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0.15;
  background-image: 
    linear-gradient(var(--blueprint-grid-color) 1px, transparent 1px),
    linear-gradient(90deg, var(--blueprint-grid-color) 1px, transparent 1px);
  background-size: 20px 20px;
  pointer-events: none;
  z-index: 1;
}

.skeleton-card .project-card-content {
  padding: 64px 48px;
  align-items: center;
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}

.skeleton-badge {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  border: 1px solid var(--border);
  padding: 3px 12px;
  border-radius: 12px;
  margin-bottom: 20px;
}

.skeleton-title {
  font-size: 1.75rem;
  font-weight: 500;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.skeleton-description {
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--text-secondary);
  margin-bottom: 28px;
  font-weight: 300;
}

.blueprint-tech-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  z-index: 2;
}

.tech-tag {
  font-size: 0.8rem;
  font-family: var(--font-sans);
  color: var(--text-secondary);
  border: 1px solid var(--border);
  padding: 4px 12px;
  border-radius: 4px;
  background-color: var(--surface);
}

/* About Grid Layout */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: flex-start;
}

.principles-stack {
  display: flex;
  flex-direction: column;
  gap: 32px;
  margin-top: 40px;
}

.principle-item {
  border-bottom: 1px solid var(--border);
  padding-bottom: 24px;
}

.principle-title {
  font-size: 1.15rem;
  font-weight: 500;
  margin-bottom: 10px;
  font-family: var(--font-display);
}

.principle-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  font-weight: 300;
}

.narrative-block {
  background-color: var(--surface);
  border: 1px solid var(--border);
  padding: 48px;
  border-radius: 20px;
  position: relative;
}

.about-author-label {
  display: block;
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.narrative-paragraph {
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 20px;
  font-weight: 300;
}

.narrative-paragraph:last-child {
  margin-bottom: 0;
}

/* Contact Section & Box */
.contact-section {
  padding-top: 60px;
  padding-bottom: 140px;
}

.contact-container {
  display: flex;
  justify-content: center;
}

.contact-box {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 64px 48px;
  width: 100%;
  max-width: 850px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.contact-title {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 400;
  line-height: 1.25;
  margin-top: 16px;
  margin-bottom: 16px;
}

.contact-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 40px auto;
  font-weight: 300;
}

/* Copy Email Component Area */
.contact-interactive {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.email-display-container {
  display: flex;
  align-items: center;
  gap: 12px;
  background-color: var(--email-display-bg);
  border: 1px solid var(--border);
  padding: 8px 8px 8px 24px;
  border-radius: 12px;
  width: 100%;
  max-width: 450px;
  justify-content: space-between;
}

.email-address {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--text-primary);
  letter-spacing: 0.01em;
}

.btn-copy {
  background-color: var(--surface);
  color: var(--text-primary);
  border: 1px solid var(--border);
  padding: 10px 18px;
  border-radius: 8px;
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 0.85rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: border-color var(--transition-fast), background-color var(--transition-fast), transform var(--transition-fast);
}

.btn-copy:hover {
  border-color: var(--text-secondary);
  background-color: var(--btn-copy-hover-bg);
}

.btn-copy:active {
  transform: scale(0.98);
}

.copy-icon,
.check-icon {
  flex-shrink: 0;
}

.check-icon {
  color: hsl(140, 75%, 45%);
}

.btn-mail {
  width: 100%;
  max-width: 450px;
  height: 52px;
  border-radius: 12px;
  font-size: 1rem;
}

/* Footer Section */
.footer {
  border-top: 1px solid var(--border);
  padding-top: 40px;
  padding-bottom: 60px;
  position: relative;
  background-color: var(--bg-color);
  z-index: 1;
}

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

.copyright {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

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

.footer-logo {
  color: var(--text-muted);
  opacity: 0.4;
  transition: opacity var(--transition-fast), color var(--transition-fast);
}

.footer-logo:hover {
  opacity: 0.8;
  color: var(--text-primary);
}


/* ==========================================================================
   Media Queries & Responsiveness
   ========================================================================== */

@media (max-width: 1024px) {
  :root {
    --header-height: 70px;
  }
  
  .about-grid {
    grid-template-columns: 1fr;
    gap: 60px;
  }
}

@media (max-width: 850px) {
  /* Cards collapse layout */
  .project-card {
    grid-template-columns: 1fr;
    min-height: auto;
  }
  
  .project-visual-wrapper {
    border-left: none;
    border-top: 1px solid var(--border);
    padding: 60px 40px;
  }
  
  .visual-container {
    max-width: 220px;
  }
}

@media (max-width: 768px) {
  /* Navigation switch */
  .nav-desktop {
    display: none;
  }
  
  .nav-toggle {
    display: block;
  }
  
  /* Hero adjustments */
  .hero-section {
    padding-top: calc(var(--header-height) + 40px);
    padding-bottom: 60px;
  }
  
  .hero-actions {
    flex-direction: column;
    width: 100%;
  }
  
  .hero-actions .btn {
    width: 100%;
  }
  
  /* general section padding */
  .work-section,
  .about-section {
    padding-top: 60px;
    padding-bottom: 60px;
  }
  
  .contact-section {
    padding-bottom: 80px;
  }
  
  .project-card-content {
    padding: 32px 24px;
  }
  
  .project-brand-row {
    flex-wrap: wrap;
  }
  
  .project-tag {
    margin-left: 0;
    width: 100%;
    text-align: center;
    margin-top: 8px;
  }
  
  .project-links {
    flex-direction: column;
    width: 100%;
    align-items: stretch;
    gap: 16px;
  }
  
  .project-links .btn {
    width: 100%;
  }
  
  .app-store-badges {
    justify-content: center;
  }
  
  .store-badge {
    flex: 1;
    justify-content: center;
  }
  
  .narrative-block {
    padding: 32px 24px;
  }
  
  .contact-box {
    padding: 48px 24px;
  }
  
  .email-display-container {
    flex-direction: column;
    padding: 20px;
    gap: 16px;
    align-items: center;
    justify-content: center;
  }
  
  .btn-copy {
    width: 100%;
    justify-content: center;
  }
  
  .footer-container {
    flex-direction: column;
    gap: 24px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .app-store-badges {
    flex-direction: column;
    width: 100%;
  }
  
  .store-badge {
    width: 100%;
  }
}