/* ============================================
   NEUMORPHISM DESIGN SYSTEM - BuildIt AI
   ============================================ */

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  /* Core Neumorphism Colors - Light Mode */
  --neu-bg: #E0E5EC;
  --neu-fg: #3D4852;
  --neu-muted: #6B7280;
  --neu-accent: #6C63FF;
  --neu-accent-light: #8B84FF;
  --neu-accent-secondary: #38B2AC;

  /* Legacy variable mappings for compatibility */
  --text-primary: var(--neu-fg);
  --text-secondary: var(--neu-muted);
  --text-tertiary: var(--neu-muted);
  --bg-primary: var(--neu-bg);
  --bg-secondary: var(--neu-bg);
  --bg-tertiary: var(--neu-bg);
  --accent: var(--neu-accent);
  --accent-hover: var(--neu-accent-light);
  --accent-light: var(--neu-accent-light);
  --success: var(--neu-accent-secondary);
  --border: transparent;
  --border-light: transparent;

  /* Shadows - Light Mode */
  --neu-shadow-light: rgba(255, 255, 255, 0.5);
  --neu-shadow-light-strong: rgba(255, 255, 255, 0.6);
  --neu-shadow-dark: rgb(163, 177, 198, 0.6);
  --neu-shadow-dark-strong: rgb(163, 177, 198, 0.7);

  /* Prebuilt Shadow Combinations - Light Mode */
  --shadow-extruded: 9px 9px 16px rgb(163,177,198,0.6), -9px -9px 16px rgba(255,255,255,0.5);
  --shadow-extruded-hover: 12px 12px 20px rgb(163,177,198,0.7), -12px -12px 20px rgba(255,255,255,0.6);
  --shadow-extruded-small: 5px 5px 10px rgb(163,177,198,0.6), -5px -5px 10px rgba(255,255,255,0.5);
  --shadow-inset: inset 6px 6px 10px rgb(163,177,198,0.6), inset -6px -6px 10px rgba(255,255,255,0.5);
  --shadow-inset-deep: inset 10px 10px 20px rgb(163,177,198,0.7), inset -10px -10px 20px rgba(255,255,255,0.6);
  --shadow-inset-small: inset 3px 3px 6px rgb(163,177,198,0.6), inset -3px -3px 6px rgba(255,255,255,0.5);

  /* Button shadows on accent background */
  --shadow-btn-primary: 5px 5px 10px rgb(163,177,198,0.6), -5px -5px 10px rgba(255,255,255,0.5);
  --shadow-btn-primary-hover: 8px 8px 16px rgb(163,177,198,0.7), -8px -8px 16px rgba(255,255,255,0.6);
  --shadow-btn-primary-active: inset 4px 4px 8px rgba(0,0,0,0.2), inset -4px -4px 8px rgba(255,255,255,0.1);

  /* Legacy shadow mappings */
  --shadow-sm: var(--shadow-extruded-small);
  --shadow: var(--shadow-extruded-small);
  --shadow-md: var(--shadow-extruded);
  --shadow-lg: var(--shadow-extruded);
  --shadow-xl: var(--shadow-extruded-hover);

  /* Typography */
  --font-display: 'Plus Jakarta Sans', sans-serif;
  --font-body: 'DM Sans', sans-serif;

  /* Spacing */
  --spacing: 8px;

  /* Radius - Neumorphism uses softer, larger radii */
  --radius-sm: 12px;
  --radius: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --radius-container: 32px;
  --radius-base: 16px;
  --radius-inner: 12px;
}

/* ============================================
   DARK MODE
   ============================================ */
[data-theme="dark"] {
  /* Core Neumorphism Colors - Dark Mode */
  --neu-bg: #2D3748;
  --neu-fg: #F7FAFC;
  --neu-muted: #A0AEC0;
  --neu-accent: #8B84FF;
  --neu-accent-light: #A5A0FF;
  --neu-accent-secondary: #4FD1C5;

  /* Legacy variable mappings for compatibility */
  --text-primary: var(--neu-fg);
  --text-secondary: var(--neu-muted);
  --text-tertiary: var(--neu-muted);
  --bg-primary: var(--neu-bg);
  --bg-secondary: var(--neu-bg);
  --bg-tertiary: var(--neu-bg);
  --accent: var(--neu-accent);
  --accent-hover: var(--neu-accent-light);
  --accent-light: var(--neu-accent-light);
  --success: var(--neu-accent-secondary);

  /* Prebuilt Shadow Combinations - Dark Mode */
  --shadow-extruded: 9px 9px 16px rgba(0,0,0,0.4), -9px -9px 16px rgba(255,255,255,0.05);
  --shadow-extruded-hover: 12px 12px 20px rgba(0,0,0,0.5), -12px -12px 20px rgba(255,255,255,0.07);
  --shadow-extruded-small: 5px 5px 10px rgba(0,0,0,0.4), -5px -5px 10px rgba(255,255,255,0.05);
  --shadow-inset: inset 6px 6px 10px rgba(0,0,0,0.4), inset -6px -6px 10px rgba(255,255,255,0.05);
  --shadow-inset-deep: inset 10px 10px 20px rgba(0,0,0,0.5), inset -10px -10px 20px rgba(255,255,255,0.07);
  --shadow-inset-small: inset 3px 3px 6px rgba(0,0,0,0.4), inset -3px -3px 6px rgba(255,255,255,0.05);

  /* Button shadows on accent background - Dark Mode */
  --shadow-btn-primary: 5px 5px 10px rgba(0,0,0,0.4), -5px -5px 10px rgba(255,255,255,0.05);
  --shadow-btn-primary-hover: 8px 8px 16px rgba(0,0,0,0.5), -8px -8px 16px rgba(255,255,255,0.07);
  --shadow-btn-primary-active: inset 4px 4px 8px rgba(0,0,0,0.4), inset -4px -4px 8px rgba(255,255,255,0.05);

  /* Legacy shadow mappings */
  --shadow-sm: var(--shadow-extruded-small);
  --shadow: var(--shadow-extruded-small);
  --shadow-md: var(--shadow-extruded);
  --shadow-lg: var(--shadow-extruded);
  --shadow-xl: var(--shadow-extruded-hover);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  color: var(--neu-fg);
  background-color: var(--neu-bg);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color 0.3s ease, color 0.3s ease;
}

.font-display {
  font-family: var(--font-display);
}

/* ============================================
   HEADER / NAVIGATION
   ============================================ */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: var(--neu-bg);
  backdrop-filter: blur(20px);
  z-index: 1000;
  padding: calc(var(--spacing) * 2) calc(var(--spacing) * 4);
  transition: background-color 0.3s ease;
}

.nav {
  padding: 0;
}

.nav-content {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo-container {
  display: flex;
  align-items: center;
  gap: calc(var(--spacing) * 2);
}

.logo-icon-wrapper {
  width: 48px;
  height: 48px;
  background: var(--neu-bg);
  border-radius: var(--radius-base);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-extruded);
  transition: all 0.3s ease-out;
}

.logo-icon-wrapper:hover {
  box-shadow: var(--shadow-extruded-hover);
  transform: translateY(-1px);
}

.logo-icon-inner {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--neu-accent) 0%, var(--neu-accent-light) 100%);
  border-radius: var(--radius-inner);
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  color: var(--neu-fg);
  letter-spacing: -0.5px;
}

.nav-links {
  display: flex;
  gap: calc(var(--spacing) * 3);
  align-items: center;
}

.nav-links a {
  text-decoration: none;
  color: var(--neu-fg);
  font-weight: 600;
  transition: color 0.2s ease;
  font-size: 15px;
}

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

.theme-toggle {
  background: var(--neu-bg);
  border: none;
  cursor: pointer;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--neu-fg);
  box-shadow: var(--shadow-extruded-small);
  transition: all 0.3s ease-out;
  position: relative;
}

.theme-toggle:hover {
  box-shadow: var(--shadow-extruded-hover);
  transform: translateY(-1px);
}

.theme-toggle:active {
  box-shadow: var(--shadow-inset);
  transform: translateY(0.5px);
}

.theme-toggle:focus {
  outline: none;
  box-shadow: var(--shadow-extruded-small), 0 0 0 2px var(--neu-bg), 0 0 0 4px var(--neu-accent);
}

/* Theme Toggle Icon States */
.theme-toggle .sun-icon,
.theme-toggle .moon-icon {
  position: absolute;
  transition: all 0.3s ease;
}

.theme-toggle .sun-icon {
  opacity: 1;
  transform: rotate(0deg);
}

.theme-toggle .moon-icon {
  opacity: 0;
  transform: rotate(180deg);
}

[data-theme="dark"] .theme-toggle .sun-icon {
  opacity: 0;
  transform: rotate(-180deg);
}

[data-theme="dark"] .theme-toggle .moon-icon {
  opacity: 1;
  transform: rotate(0deg);
}

.mobile-menu-toggle {
  display: none;
}

/* ============================================
   MAIN CONTENT
   ============================================ */

main {
  margin-top: 80px;
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
  padding: calc(var(--spacing) * 16) calc(var(--spacing) * 4);
  position: relative;
  overflow: hidden;
  background: var(--neu-bg);
}

/* Decorative nested circles */
.hero-decoration {
  position: absolute;
  top: 10%;
  right: -5%;
  width: 500px;
  height: 500px;
  pointer-events: none;
  z-index: 0;
}

.decoration-circle {
  position: absolute;
  border-radius: 50%;
  background: var(--neu-bg);
  transition: box-shadow 0.3s ease, background-color 0.3s ease;
}

.decoration-circle-1 {
  width: 100%;
  height: 100%;
  box-shadow: var(--shadow-extruded);
  animation: float 6s ease-in-out infinite;
}

.decoration-circle-2 {
  width: 70%;
  height: 70%;
  top: 15%;
  left: 15%;
  box-shadow: var(--shadow-inset);
  animation: float 6s ease-in-out infinite 0.5s;
}

.decoration-circle-3 {
  width: 40%;
  height: 40%;
  top: 30%;
  left: 30%;
  box-shadow: var(--shadow-extruded-small);
  animation: float 6s ease-in-out infinite 1s;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-20px); }
}

.hero-container {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: calc(var(--spacing) * 10);
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 20px;
  background: var(--neu-bg);
  border-radius: 9999px;
  font-size: 13px;
  font-weight: 600;
  color: var(--neu-accent);
  letter-spacing: 0.3px;
  margin-bottom: calc(var(--spacing) * 4);
  box-shadow: var(--shadow-extruded-small);
  transition: box-shadow 0.3s ease, background-color 0.3s ease;
}

.hero-title {
  font-family: var(--font-display);
  font-size: 72px;
  font-weight: 800;
  line-height: 1.05;
  color: var(--neu-fg);
  margin-bottom: calc(var(--spacing) * 3);
  letter-spacing: -3px;
}

.hero-subtitle {
  font-size: 20px;
  color: var(--neu-muted);
  margin-bottom: calc(var(--spacing) * 6);
  line-height: 1.7;
  max-width: 520px;
}

/* ============================================
   COMPANY INFO CARD (Neumorphic)
   ============================================ */

.company-card {
  background: var(--neu-bg);
  border-radius: var(--radius-container);
  padding: calc(var(--spacing) * 5);
  box-shadow: var(--shadow-extruded);
  transition: all 0.3s ease-out;
  border: none;
}

.company-card:hover {
  box-shadow: var(--shadow-extruded-hover);
  transform: translateY(-2px);
}

.company-header {
  display: flex;
  align-items: center;
  gap: calc(var(--spacing) * 2);
  margin-bottom: calc(var(--spacing) * 3);
  padding-bottom: calc(var(--spacing) * 3);
  position: relative;
}

.company-header::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--neu-bg);
  box-shadow: var(--shadow-inset-small);
  border-radius: 2px;
}

.company-icon-well {
  width: 56px;
  height: 56px;
  background: var(--neu-bg);
  border-radius: var(--radius-base);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-inset-deep);
  flex-shrink: 0;
  transition: box-shadow 0.3s ease, background-color 0.3s ease;
}

.company-icon-inner {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--neu-accent) 0%, var(--neu-accent-light) 100%);
  border-radius: var(--radius-inner);
  display: flex;
  align-items: center;
  justify-content: center;
}

.company-label {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--neu-muted);
  font-weight: 600;
  margin-bottom: 4px;
}

.company-name {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--neu-fg);
}

.company-description {
  font-size: 16px;
  color: var(--neu-muted);
  line-height: 1.7;
  margin-bottom: calc(var(--spacing) * 5);
}

.button-group {
  display: flex;
  flex-wrap: wrap;
  gap: calc(var(--spacing) * 2);
}

/* ============================================
   NEUMORPHIC BUTTONS
   ============================================ */

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: calc(var(--spacing) * 2) calc(var(--spacing) * 4);
  background: var(--neu-accent);
  color: white;
  border-radius: var(--radius-base);
  text-decoration: none;
  font-weight: 600;
  font-size: 15px;
  box-shadow: var(--shadow-btn-primary);
  transition: all 0.3s ease-out;
  border: none;
  cursor: pointer;
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-btn-primary-hover);
}

.btn-primary:active {
  transform: translateY(0.5px);
  box-shadow: var(--shadow-btn-primary-active);
}

.btn-primary:focus {
  outline: none;
  box-shadow: var(--shadow-btn-primary), 0 0 0 2px var(--neu-bg), 0 0 0 4px var(--neu-accent);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: calc(var(--spacing) * 2) calc(var(--spacing) * 4);
  background: var(--neu-bg);
  color: var(--neu-fg);
  border-radius: var(--radius-base);
  text-decoration: none;
  font-weight: 600;
  font-size: 15px;
  box-shadow: var(--shadow-extruded-small);
  transition: all 0.3s ease-out;
  border: none;
  cursor: pointer;
}

.btn-secondary:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-extruded-hover);
}

.btn-secondary:active {
  transform: translateY(0.5px);
  box-shadow: var(--shadow-inset-small);
}

.btn-secondary:focus {
  outline: none;
  box-shadow: var(--shadow-extruded-small), 0 0 0 2px var(--neu-bg), 0 0 0 4px var(--neu-accent);
}

.support-info {
  margin-top: calc(var(--spacing) * 4);
  padding-top: calc(var(--spacing) * 4);
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--neu-muted);
  font-size: 14px;
}

.support-info::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--neu-bg);
  box-shadow: var(--shadow-inset-small);
  border-radius: 2px;
}

.support-info a {
  color: var(--neu-accent);
  text-decoration: none;
  font-weight: 600;
  transition: color 0.2s ease;
}

.support-info a:hover {
  color: var(--neu-accent-light);
}

/* ============================================
   PHONE MOCKUP (Neumorphic)
   ============================================ */

.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.phone-mockup {
  position: relative;
  animation: float 6s ease-in-out infinite;
}

.phone-frame {
  width: 300px;
  height: 620px;
  background: var(--neu-bg);
  border-radius: 48px;
  padding: 12px;
  box-shadow: var(--shadow-extruded-hover);
  position: relative;
  transition: box-shadow 0.3s ease, background-color 0.3s ease;
}

.phone-notch {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 120px;
  height: 28px;
  background: var(--neu-bg);
  border-radius: 0 0 20px 20px;
  z-index: 2;
  box-shadow: var(--shadow-inset-small);
  transition: box-shadow 0.3s ease, background-color 0.3s ease;
}

.phone-screen {
  width: 100%;
  height: 100%;
  background: var(--neu-bg);
  border-radius: 38px;
  overflow: hidden;
  position: relative;
  box-shadow: var(--shadow-inset-deep);
  transition: box-shadow 0.3s ease, background-color 0.3s ease;
}

.app-interface {
  width: 100%;
  height: 100%;
  padding: 44px 20px 20px;
}

.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 28px;
  font-size: 12px;
  font-weight: 600;
  color: var(--neu-fg);
}

.app-icons {
  display: flex;
  gap: 4px;
  align-items: center;
}

.signal-icon,
.wifi-icon,
.battery-icon {
  width: 14px;
  height: 10px;
  background: var(--neu-muted);
  border-radius: 2px;
  opacity: 0.6;
}

.app-welcome {
  font-size: 14px;
  color: var(--neu-muted);
  margin-bottom: 4px;
}

.app-title {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 700;
  color: var(--neu-fg);
  margin-bottom: 20px;
  letter-spacing: -0.5px;
}

.app-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 20px;
}

.app-card {
  background: var(--neu-bg);
  border-radius: var(--radius-inner);
  padding: 14px 10px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  box-shadow: var(--shadow-extruded-small);
  transition: all 0.3s ease-out;
  cursor: pointer;
  border: none;
}

.app-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-extruded);
}

.app-card.active {
  background: var(--neu-accent);
  box-shadow: var(--shadow-btn-primary);
}

.card-icon {
  width: 28px;
  height: 28px;
  background: var(--neu-bg);
  border-radius: 8px;
  box-shadow: var(--shadow-inset-small);
  transition: box-shadow 0.3s ease, background-color 0.3s ease;
}

.app-card.active .card-icon {
  background: rgba(255, 255, 255, 0.2);
  box-shadow: inset 2px 2px 4px rgba(0,0,0,0.1), inset -2px -2px 4px rgba(255,255,255,0.2);
}

.card-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--neu-muted);
}

.app-card.active .card-label {
  color: white;
}

.app-project-card {
  background: var(--neu-bg);
  border-radius: var(--radius-base);
  padding: 18px;
  box-shadow: var(--shadow-extruded-small);
  border: none;
  transition: box-shadow 0.3s ease, background-color 0.3s ease;
}

.project-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}

.project-title {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  color: var(--neu-fg);
}

.project-status {
  font-size: 10px;
  font-weight: 600;
  color: var(--neu-accent-secondary);
  background: var(--neu-bg);
  padding: 4px 10px;
  border-radius: 9999px;
  box-shadow: var(--shadow-inset-small);
  transition: box-shadow 0.3s ease, background-color 0.3s ease;
}

.project-progress {
  width: 100%;
  height: 8px;
  background: var(--neu-bg);
  border-radius: 9999px;
  overflow: hidden;
  margin-bottom: 14px;
  box-shadow: var(--shadow-inset-small);
  transition: box-shadow 0.3s ease, background-color 0.3s ease;
}

.progress-bar {
  width: 65%;
  height: 100%;
  background: linear-gradient(90deg, var(--neu-accent) 0%, var(--neu-accent-light) 100%);
  border-radius: 9999px;
}

.project-details {
  display: flex;
  justify-content: space-between;
}

.detail-label {
  font-size: 10px;
  color: var(--neu-muted);
  margin-bottom: 4px;
}

.detail-value {
  font-size: 12px;
  font-weight: 600;
  color: var(--neu-fg);
}

/* ============================================
   FLOATING CARDS (Neumorphic)
   ============================================ */

.floating-card {
  position: absolute;
  background: var(--neu-bg);
  border-radius: var(--radius-base);
  padding: 14px 18px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: var(--shadow-extruded);
  animation: fadeInUp 1s ease-out;
  border: none;
  transition: box-shadow 0.3s ease, background-color 0.3s ease;
}

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

.card-1 {
  top: 12%;
  left: -90px;
  animation-delay: 0.5s;
}

.card-2 {
  bottom: 18%;
  right: -90px;
  animation-delay: 0.8s;
}

.mini-icon-well {
  width: 36px;
  height: 36px;
  background: var(--neu-bg);
  border-radius: var(--radius-inner);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-inset);
  transition: box-shadow 0.3s ease, background-color 0.3s ease;
}

.mini-icon {
  width: 24px;
  height: 24px;
  background: linear-gradient(135deg, var(--neu-accent) 0%, var(--neu-accent-light) 100%);
  border-radius: 8px;
}

.mini-icon.green {
  background: linear-gradient(135deg, var(--neu-accent-secondary) 0%, #4fd1c5 100%);
}

.mini-text {
  font-size: 13px;
  font-weight: 600;
  color: var(--neu-fg);
  white-space: nowrap;
}

/* Remove old glow effect - not neumorphic */
.glow-effect {
  display: none;
}

/* ============================================
   FOOTER (Neumorphic)
   ============================================ */

.footer {
  background: var(--neu-bg);
  padding: calc(var(--spacing) * 10) calc(var(--spacing) * 4) calc(var(--spacing) * 6);
  transition: background-color 0.3s ease;
}

.footer-container {
  max-width: 1280px;
  margin: 0 auto;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 3fr;
  gap: calc(var(--spacing) * 10);
  margin-bottom: calc(var(--spacing) * 6);
  padding-bottom: calc(var(--spacing) * 6);
  position: relative;
  border-bottom: none;
}

.footer-top::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--neu-bg);
  box-shadow: var(--shadow-inset-small);
  border-radius: 3px;
}

.footer-brand .logo-container {
  margin-bottom: calc(var(--spacing) * 2);
}

.footer-description {
  font-size: 15px;
  color: var(--neu-muted);
  line-height: 1.6;
  max-width: 400px;
}

.footer-links-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: calc(var(--spacing) * 6);
}

.footer-column h4 {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  margin-bottom: calc(var(--spacing) * 2.5);
  color: var(--neu-fg);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.footer-column a {
  display: block;
  color: var(--neu-muted);
  text-decoration: none;
  font-size: 14px;
  margin-bottom: calc(var(--spacing) * 1.5);
  transition: color 0.2s ease;
}

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

.footer-column a:focus {
  outline: none;
  color: var(--neu-accent);
  text-decoration: underline;
}

.footer-bottom {
  display: flex;
  justify-content: center;
  align-items: center;
}

.footer-bottom p {
  color: var(--neu-muted);
  font-size: 14px;
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 1200px) {
  .hero-decoration {
    width: 350px;
    height: 350px;
  }

  .floating-card.card-1,
  .floating-card.card-2 {
    display: none;
  }
}

@media (max-width: 968px) {
  .hero {
    padding: calc(var(--spacing) * 10) calc(var(--spacing) * 3);
  }

  .hero-container {
    grid-template-columns: 1fr;
    gap: calc(var(--spacing) * 8);
  }

  .hero-title {
    font-size: 48px;
    letter-spacing: -2px;
  }

  .hero-subtitle {
    font-size: 18px;
  }

  .hero-visual {
    order: -1;
  }

  .hero-decoration {
    display: none;
  }

  .phone-frame {
    width: 260px;
    height: 540px;
  }

  .footer-top {
    grid-template-columns: 1fr;
  }

  .footer-links-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 640px) {
  .hero-title {
    font-size: 40px;
  }

  .button-group {
    flex-direction: column;
  }

  .btn-primary,
  .btn-secondary {
    width: 100%;
    justify-content: center;
  }

  .footer-links-grid {
    grid-template-columns: 1fr;
    gap: calc(var(--spacing) * 4);
  }

  .footer-bottom {
    flex-direction: column;
    gap: calc(var(--spacing) * 3);
  }
}

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

/* Smooth transition for all neumorphic elements */
.logo-icon-wrapper,
.company-card,
.company-icon-well,
.phone-frame,
.phone-screen,
.phone-notch,
.app-card,
.app-project-card,
.project-status,
.project-progress,
.card-icon,
.floating-card,
.mini-icon-well,
.hero-badge,
.decoration-circle,
.header,
.footer {
  transition: background-color 0.3s ease, box-shadow 0.3s ease, color 0.3s ease;
}