/* ============================================
   CREATIVE RESUME WEBSITE - CSS DESIGN SYSTEM
   ============================================ */

/* ============================
   CSS CUSTOM PROPERTIES
   ============================ */
:root {
  /* === Color Palette === */
  /* Primary Colors - Neon Cyberpunk Scheme */
  --color-primary: #00ffff;           /* Neon cyan */
  --color-primary-light: #5dfdff;     /* Bright cyan */
  --color-primary-dark: #00cccc;      /* Deep cyan */
  --color-primary-gradient: var(--color-primary);
  
  /* Secondary Colors - Neon Accents */
  --color-secondary: #ff00ff;         /* Neon magenta */
  --color-secondary-light: #ff5dff;   /* Bright magenta */
  --color-secondary-dark: #cc00cc;    /* Deep magenta */
  
  /* Accent Colors */
  --color-accent: #00ff88;            /* Neon green */
  --color-accent-light: #5dffa8;      /* Bright green */
  
  /* Neutral Colors */
  --color-background: #0a0a0c;        /* Deep dark background */
  --color-surface: #151518;           /* Card/surface background */
  --color-surface-light: #1f1f24;     /* Lighter surface */
  --color-text-primary: #ffffff;      /* Pure white for maximum contrast */
  --color-text-secondary: #e0e0e0;    /* Very light gray - high contrast */
  --color-text-muted: #b0b0b0;        /* Light gray - still visible */
  --color-border: #3f3f46;            /* Border color */
  
  /* Semantic Colors */
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-error: #ef4444;
  --color-info: #8b5cf6;
  
  /* === Typography === */
  /* Font Families */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-heading: 'Poppins', 'Inter', -apple-system, sans-serif;
  --font-mono: 'Fira Code', 'Courier New', monospace;
  
  /* Font Sizes */
  --text-xs: 0.75rem;      /* 12px */
  --text-sm: 0.875rem;     /* 14px */
  --text-base: 1rem;       /* 16px */
  --text-lg: 1.125rem;     /* 18px */
  --text-xl: 1.25rem;      /* 20px */
  --text-2xl: 1.5rem;      /* 24px */
  --text-3xl: 1.875rem;    /* 30px */
  --text-4xl: 2.25rem;     /* 36px */
  --text-5xl: 3rem;        /* 48px */
  --text-6xl: 3.75rem;     /* 60px */
  --text-7xl: 4.5rem;      /* 72px */
  
  /* Font Weights */
  --font-light: 300;
  --font-normal: 400;
  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;
  --font-extrabold: 800;
  
  /* Line Heights */
  --leading-tight: 1.25;
  --leading-snug: 1.375;
  --leading-normal: 1.5;
  --leading-relaxed: 1.625;
  --leading-loose: 2;
  
  /* === Spacing === */
  --space-1: 0.25rem;      /* 4px */
  --space-2: 0.5rem;       /* 8px */
  --space-3: 0.75rem;      /* 12px */
  --space-4: 1rem;         /* 16px */
  --space-5: 1.25rem;      /* 20px */
  --space-6: 1.5rem;       /* 24px */
  --space-8: 2rem;         /* 32px */
  --space-10: 2.5rem;      /* 40px */
  --space-12: 3rem;        /* 48px */
  --space-16: 4rem;        /* 64px */
  --space-20: 5rem;        /* 80px */
  --space-24: 6rem;        /* 96px */
  
  /* === Border Radius === */
  --radius-sm: 0.25rem;    /* 4px */
  --radius-md: 0.5rem;     /* 8px */
  --radius-lg: 0.75rem;    /* 12px */
  --radius-xl: 1rem;       /* 16px */
  --radius-2xl: 1.5rem;    /* 24px */
  --radius-full: 9999px;
  
  /* === Shadows === */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -2px rgba(0, 0, 0, 0.4);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.6), 0 10px 10px -5px rgba(0, 0, 0, 0.5);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.7);
  --shadow-glow: 0 0 30px rgba(0, 255, 255, 0.6);
  --shadow-glow-accent: 0 0 40px rgba(255, 0, 255, 0.6);
  
  /* === Transitions === */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
  
  /* === Z-index === */
  --z-base: 1;
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 300;
  --z-modal: 400;
  --z-popover: 500;
  --z-tooltip: 600;
  
  /* === Container Widths === */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1280px;
  --container-2xl: 1536px;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-primary);
  font-size: var(--text-base);
  font-weight: var(--font-normal);
  line-height: var(--leading-normal);
  color: var(--color-text-primary);
  background-color: var(--color-background);
  overflow-x: hidden;
}

/* ============================
   TYPOGRAPHY
   ============================ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: var(--font-bold);
  line-height: var(--leading-tight);
  color: #ffffff;
  margin-bottom: var(--space-4);
}

h1 {
  font-size: var(--text-5xl);
  font-weight: var(--font-extrabold);
  letter-spacing: -0.02em;
}

h2 {
  font-size: var(--text-4xl);
  font-weight: var(--font-bold);
}

h3 {
  font-size: var(--text-3xl);
  font-weight: var(--font-bold);
}

h4 {
  font-size: var(--text-2xl);
  font-weight: var(--font-semibold);
}

h5 {
  font-size: var(--text-xl);
  font-weight: var(--font-semibold);
}

h6 {
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
}

p {
  margin-bottom: var(--space-4);
  color: #e0e0e0;
  line-height: var(--leading-relaxed);
}

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

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

strong, b {
  font-weight: var(--font-bold);
}

em, i {
  font-style: italic;
}

code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  padding: var(--space-1) var(--space-2);
  background-color: var(--color-surface);
  border-radius: var(--radius-sm);
  color: var(--color-accent);
}

pre {
  font-family: var(--font-mono);
  padding: var(--space-4);
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  overflow-x: auto;
  margin-bottom: var(--space-4);
}

/* Text Utilities */
.text-gradient {
  color: var(--color-primary);
  text-shadow: 0 0 20px rgba(0, 255, 255, 0.5);
}

.text-primary { color: var(--color-primary); }
.text-secondary { color: var(--color-secondary); }
.text-accent { color: var(--color-accent); }
.text-muted { color: var(--color-text-muted); }

/* ============================
   CONTAINER & LAYOUT
   ============================ */
.container {
  width: 100%;
  max-width: var(--container-xl);
  margin: 0 auto;
  padding: 0 var(--space-4);
}

.container-sm { max-width: var(--container-sm); }
.container-md { max-width: var(--container-md); }
.container-lg { max-width: var(--container-lg); }
.container-xl { max-width: var(--container-xl); }
.container-2xl { max-width: var(--container-2xl); }

.section {
  padding: var(--space-20) 0;
}

.section-sm {
  padding: var(--space-12) 0;
}

.section-lg {
  padding: var(--space-24) 0;
}

/* Flexbox Utilities */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-row { flex-direction: row; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-around { justify-content: space-around; }
.justify-start { justify-content: flex-start; }
.justify-end { justify-content: flex-end; }
.gap-2 { gap: var(--space-2); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

/* Grid Utilities */
.grid { display: grid; }
.grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
.grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

/* ============================
   BUTTON COMPONENTS
   ============================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-primary);
  font-size: var(--text-base);
  font-weight: var(--font-medium);
  line-height: 1;
  text-align: center;
  text-decoration: none;
  border: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
  user-select: none;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Button Variants */
.btn-primary {
  background: var(--color-primary);
  color: var(--color-background);
  box-shadow: var(--shadow-md);
}

/* primary hover handled later (single authoritative rule) */

.btn-secondary {
  background-color: var(--color-secondary);
  color: white;
  box-shadow: var(--shadow-md);
}

.btn-secondary:hover:not(:disabled) {
  background-color: var(--color-secondary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg), var(--shadow-glow-accent);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn-outline:hover:not(:disabled) {
  background-color: var(--color-primary-dark);
  color: var(--color-background);
  border-color: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg), var(--shadow-glow-accent), 0 0 15px rgba(0, 204, 204, 0.12);
}

.btn-outline:focus-visible {
  background-color: var(--color-primary-dark);
  color: var(--color-background);
  border-color: var(--color-primary-dark);
}

/* Ensure active/focus states have strong contrast */
.btn-outline:active {
  background-color: var(--color-primary-dark);
  color: var(--color-background);
  border-color: var(--color-primary-dark);
}

.btn-primary:focus-visible,
.btn-primary:active {
  background-color: var(--color-primary);
  color: var(--color-background);
  box-shadow: 0 0 0 6px rgba(0, 255, 255, 0.08);
}

/* Improve hover contrast for primary buttons (including hero CTA) */
.btn-primary:hover:not(:disabled) {
  background-color: var(--color-primary-dark);
  color: var(--color-background);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg), var(--shadow-glow-accent);
}

.btn-ghost {
  background-color: transparent;
  color: var(--color-primary);
}

.btn-ghost:hover:not(:disabled) {
  background-color: var(--color-surface);
  box-shadow: var(--shadow-glow-accent);
}

/* Button Sizes */
.btn-sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
}

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-lg);
}

.btn-xl {
  padding: var(--space-5) var(--space-10);
  font-size: var(--text-xl);
}

/* ============================
   CARD COMPONENT
   ============================ */
.card {
  background-color: var(--color-surface);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
  border: 1px solid var(--color-border);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: var(--color-primary);
}

.card-header {
  margin-bottom: var(--space-4);
}

.card-title {
  font-size: var(--text-2xl);
  font-weight: var(--font-bold);
  margin-bottom: var(--space-2);
}

.card-description {
  color: #e0e0e0;
  font-size: var(--text-base);
}

.card-content {
  margin-bottom: var(--space-4);
}

.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
}

/* Card Variants */
.card-gradient {
  background: var(--color-surface);
  border: 1px solid rgba(0, 255, 255, 0.3);
}

.card-glow {
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}

/* ============================
   FORM COMPONENTS
   ============================ */
.form-group {
  margin-bottom: var(--space-6);
}

.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-primary);
  font-size: var(--text-base);
  color: var(--color-text-primary);
  background-color: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0, 255, 255, 0.2), 0 0 15px rgba(0, 255, 255, 0.3);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-text-muted);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

.form-error {
  display: block;
  margin-top: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-error);
}

.form-helper {
  display: block;
  margin-top: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* ============================
   BADGE COMPONENT
   ============================ */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  border-radius: var(--radius-full);
  white-space: nowrap;
}

.badge-primary {
  background-color: rgba(0, 255, 255, 0.15);
  color: var(--color-primary);
  border: 1px solid rgba(0, 255, 255, 0.3);
}

.badge-secondary {
  background-color: rgba(255, 0, 255, 0.15);
  color: var(--color-secondary);
  border: 1px solid rgba(255, 0, 255, 0.3);
}

.badge-success {
  background-color: rgba(16, 185, 129, 0.2);
  color: var(--color-success);
}

.badge-accent {
  background-color: rgba(0, 255, 136, 0.15);
  color: var(--color-accent);
  border: 1px solid rgba(0, 255, 136, 0.3);
}

/* ============================
   NAVIGATION COMPONENT
   ============================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-fixed);
  background-color: rgba(15, 15, 17, 0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-4) 0;
  transition: all var(--transition-base);
}

.navbar.scrolled {
  background-color: rgba(15, 15, 17, 0.95);
  box-shadow: var(--shadow-lg);
}

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

.navbar-brand {
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  color: var(--color-text-primary);
  text-decoration: none;
}

.navbar-menu {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  list-style: none;
}

.navbar-link {
  font-size: var(--text-base);
  font-weight: var(--font-medium);
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
  position: relative;
}

.navbar-link:hover,
.navbar-link.active {
  color: var(--color-primary);
}

.navbar-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary-gradient);
  transition: width var(--transition-base);
}

.navbar-link:hover::after,
.navbar-link.active::after {
  width: 100%;
}

/* Mobile Menu Toggle */
.navbar-toggle {
  display: none;
  flex-direction: column;
  gap: var(--space-1);
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
}

.navbar-toggle-bar {
  width: 24px;
  height: 2px;
  background-color: var(--color-text-primary);
  transition: all var(--transition-base);
}

/* ============================
   HERO SECTION
   ============================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding: var(--space-20) 0;
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 50% 50%, rgba(0, 255, 255, 0.15) 0%, transparent 50%);
  z-index: -1;
}

.hero-content {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.hero-title {
  font-size: var(--text-6xl);
  font-weight: var(--font-extrabold);
  margin-bottom: var(--space-6);
  line-height: 1.1;
}

.hero-subtitle {
  font-size: var(--text-xl);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-8);
  line-height: var(--leading-relaxed);
}

.hero-cta {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
}

/* ============================
   TIMELINE COMPONENT
   ============================ */
.timeline {
  position: relative;
  padding-left: var(--space-8);
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--color-primary);
}

.timeline-item {
  position: relative;
  padding-bottom: var(--space-8);
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: calc(-1 * var(--space-8) - 6px);
  top: 0;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background-color: var(--color-primary);
  box-shadow: 0 0 15px var(--color-primary), 0 0 30px rgba(0, 255, 255, 0.5);
  z-index: 1;
}

.timeline-date {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-2);
}

.timeline-title {
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  margin-bottom: var(--space-2);
}

.timeline-company {
  font-size: var(--text-base);
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}

.timeline-description {
  color: #e0e0e0;
  line-height: var(--leading-relaxed);
}

/* ============================
   SKILL BARS
   ============================ */
.skill-item {
  margin-bottom: var(--space-6);
}

.skill-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-2);
}

.skill-name {
  font-weight: var(--font-medium);
  color: #ffffff;
}

.skill-level {
  font-size: var(--text-sm);
  color: #b0b0b0;
  font-weight: var(--font-semibold);
}

.skill-bar {
  height: 8px;
  background-color: var(--color-surface);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.skill-progress {
  height: 100%;
  background: var(--color-primary);
  border-radius: var(--radius-full);
  transition: width 1s ease-out;
  box-shadow: var(--shadow-glow);
}

/* ============================
   TAG / CHIP COMPONENT
   ============================ */
.tag {
  display: inline-flex;
  align-items: center;
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: #ffffff;
  background-color: var(--color-surface-light);
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  transition: all var(--transition-fast);
}

.tag:hover {
  border-color: var(--color-primary);
  background-color: rgba(0, 255, 255, 0.15);
  box-shadow: 0 0 10px rgba(0, 255, 255, 0.3);
}

/* ============================
   FOOTER
   ============================ */
.footer {
  padding: var(--space-16) 0 var(--space-8);
  border-top: 1px solid var(--color-border);
  background-color: var(--color-surface);
}

.footer-content {
  text-align: center;
}

.footer-social {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  margin-bottom: var(--space-6);
}

.footer-social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background-color: var(--color-surface-light);
  color: var(--color-text-primary);
  transition: all var(--transition-base);
}

.footer-social-link:hover {
  background: var(--color-primary);
  color: var(--color-background);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}

.footer-text {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

/* ============================
   UTILITY CLASSES
   ============================ */
/* Spacing */
.mt-4 { margin-top: var(--space-4); }
.mt-8 { margin-top: var(--space-8); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-8 { margin-bottom: var(--space-8); }
.mx-auto { margin-left: auto; margin-right: auto; }

/* Text Alignment */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

/* Display */
.hidden { display: none; }
.block { display: block; }
.inline-block { display: inline-block; }

/* Position */
.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }

/* Overflow */
.overflow-hidden { overflow: hidden; }
.overflow-auto { overflow: auto; }

/* ============================
   ANIMATIONS
   ============================ */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

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

.animate-fade-in {
  animation: fadeIn 0.6s ease-out;
}

.animate-slide-in-left {
  animation: slideInLeft 0.6s ease-out;
}

.animate-slide-in-right {
  animation: slideInRight 0.6s ease-out;
}

.animate-pulse {
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

.animate-float {
  animation: float 3s ease-in-out infinite;
}

/* ============================
   RESPONSIVE DESIGN
   ============================ */
@media (max-width: 1024px) {
  :root {
    --text-5xl: 2.5rem;
    --text-6xl: 3rem;
    --text-7xl: 3.5rem;
  }
  
  .grid-cols-3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  
  .grid-cols-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  :root {
    --text-5xl: 2rem;
    --text-6xl: 2.5rem;
    --space-20: 3rem;
    --space-24: 4rem;
  }
  
  .navbar-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--color-surface);
    flex-direction: column;
    padding: var(--space-4);
    border-top: 1px solid var(--color-border);
    box-shadow: var(--shadow-lg);
  }
  
  .navbar-menu.active {
    display: flex;
  }
  
  .navbar-toggle {
    display: flex;
  }
  
  .navbar-toggle.active .navbar-toggle-bar:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }
  
  .navbar-toggle.active .navbar-toggle-bar:nth-child(2) {
    opacity: 0;
  }
  
  .navbar-toggle.active .navbar-toggle-bar:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
  }
  
  .grid-cols-2,
  .grid-cols-3,
  .grid-cols-4 {
    grid-template-columns: repeat(1, minmax(0, 1fr));
  }
  
  .hero-cta {
    flex-direction: column;
  }
  
  .hero-cta .btn {
    width: 100%;
  }
}

@media (max-width: 480px) {
  :root {
    --text-5xl: 1.75rem;
    --text-6xl: 2rem;
  }
  
  .container {
    padding: 0 var(--space-3);
  }
  
  .card {
    padding: var(--space-4);
  }
}

/* Connect buttons: stack by default (mobile-first) and ensure accessible focus */
.connect-buttons { display: flex; gap: var(--space-4); justify-content: center; align-items: center; flex-direction: column; }

/* On wider screens, show buttons inline */
@media (min-width: 769px) {
  .connect-buttons { flex-direction: row; }
  .connect-buttons .btn { width: auto; }
}

@media (max-width: 768px) {
  .connect-buttons .btn { width: 100%; max-width: 360px; }
}

.btn:focus-visible {
  outline: 3px solid rgba(0, 255, 255, 0.18);
  outline-offset: 3px;
  box-shadow: 0 0 0 4px rgba(0, 255, 255, 0.06);
}