/* ==========================================================================
   DESIGNFLEX.ME — MASTER STYLESHEET
   Brand Identity: Midnight Navy (#101B35) | Electric Blue (#3978F6)
   Ice White (#F5F8FF) | Soft Periwinkle (#DCE8FF) | Pure White (#FFFFFF)
   Slate Gray (#667085) | Light Border (#E3EAF5)
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Space+Grotesk:wght@500;600;700;800;900&display=swap');

/* --------------------------------------------------------------------------
   1. CSS Custom Properties / Design Tokens
   -------------------------------------------------------------------------- */
:root {
  /* Brand Color Palette */
  --color-midnight-navy: #101B35;
  --color-electric-blue: #3978F6;
  --color-electric-blue-hover: #2665e3;
  --color-electric-blue-glow: rgba(57, 120, 246, 0.25);
  --color-ice-white: #F5F8FF;
  --color-soft-periwinkle: #DCE8FF;
  --color-pure-white: #FFFFFF;
  --color-slate-gray: #667085;
  --color-light-border: #E3EAF5;

  /* Theme Surfaces (Light Mode Default ~65% White/Ice, 25% Navy, 10% Blue) */
  --bg-primary: #FFFFFF;
  --bg-secondary: #F5F8FF;
  --bg-tertiary: #EEF4FD;
  --bg-card: #FFFFFF;
  --bg-navy-section: #101B35;
  --text-primary: #101B35;
  --text-secondary: #667085;
  --text-muted: #8F9BB3;
  --text-inverse: #FFFFFF;
  --text-inverse-muted: #A3B3D1;
  --border-color: #E3EAF5;
  --border-hover: #C8D7EE;
  --tag-bg: #DCE8FF;
  --tag-text: #101B35;
  
  /* Shadows */
  --shadow-sm: 0 2px 6px rgba(16, 27, 53, 0.04);
  --shadow-md: 0 10px 25px rgba(16, 27, 53, 0.06);
  --shadow-lg: 0 20px 40px rgba(16, 27, 53, 0.09);
  --shadow-blue: 0 10px 25px rgba(57, 120, 246, 0.25);

  /* Typography */
  --font-heading: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Spacing & Sizing */
  --header-height: 80px;
  --container-max-width: 1240px;
  --border-radius-sm: 8px;
  --border-radius-md: 14px;
  --border-radius-lg: 24px;
  --border-radius-pill: 9999px;
  
  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Dark Mode Overrides (Controlled via data-theme="dark" on <html>) */
[data-theme="dark"] {
  --bg-primary: #0A1124;
  --bg-secondary: #101B35;
  --bg-tertiary: #152243;
  --bg-card: #142142;
  --bg-navy-section: #060B18;
  --text-primary: #F5F8FF;
  --text-secondary: #A0B0CD;
  --text-muted: #7687A8;
  --border-color: rgba(227, 234, 245, 0.12);
  --border-hover: rgba(57, 120, 246, 0.5);
  --tag-bg: #1B2B54;
  --tag-text: #DCE8FF;
  --shadow-sm: 0 2px 6px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 10px 25px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.5);
}

/* --------------------------------------------------------------------------
   2. 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-body);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.65;
  min-height: 100vh;
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

img, svg {
  display: block;
  max-width: 100%;
  height: auto;
}

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

button, input, textarea, select {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

ul, ol {
  list-style: none;
}

/* --------------------------------------------------------------------------
   3. Typography & Headings
   -------------------------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.15;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2.5rem, 5.5vw + 1rem, 4.8rem);
  font-weight: 800;
  letter-spacing: -0.03em;
}

h2 {
  font-size: clamp(2rem, 3.5vw + 0.5rem, 3.2rem);
  font-weight: 800;
}

h3 {
  font-size: clamp(1.35rem, 2vw + 0.3rem, 1.85rem);
}

h4 {
  font-size: clamp(1.15rem, 1.2vw + 0.2rem, 1.35rem);
}

p {
  color: var(--text-secondary);
  font-size: clamp(1rem, 0.25vw + 0.95rem, 1.125rem);
  line-height: 1.7;
}

.text-blue {
  color: var(--color-electric-blue) !important;
}

.text-white {
  color: #FFFFFF !important;
}

.text-muted-light {
  color: var(--text-inverse-muted) !important;
}

/* --------------------------------------------------------------------------
   4. Layout & Grid Containers
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: clamp(1.25rem, 4vw, 2.5rem);
  padding-right: clamp(1.25rem, 4vw, 2.5rem);
}

.section {
  padding-top: clamp(4rem, 8vw, 7.5rem);
  padding-bottom: clamp(4rem, 8vw, 7.5rem);
  position: relative;
}

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

.section-pure {
  background-color: var(--bg-primary);
}

.section-navy {
  background-color: var(--bg-navy-section);
  color: var(--text-inverse);
}

.section-navy h1,
.section-navy h2,
.section-navy h3,
.section-navy h4 {
  color: var(--text-inverse);
}

.section-navy p {
  color: var(--text-inverse-muted);
}

/* Section Header Component */
.section-header {
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}

.section-header.text-center {
  text-align: center;
  max-width: 760px;
  margin-left: auto;
  margin-right: auto;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-electric-blue);
  background-color: var(--tag-bg);
  padding: 0.4rem 1rem;
  border-radius: var(--border-radius-pill);
  margin-bottom: 1.25rem;
  border: 1px solid rgba(57, 120, 246, 0.2);
}

.section-tag-navy {
  background-color: rgba(57, 120, 246, 0.15);
  color: #7AA8FF;
  border-color: rgba(57, 120, 246, 0.35);
}

.section-subtitle {
  margin-top: 1rem;
  font-size: clamp(1.05rem, 1vw + 0.8rem, 1.25rem);
}

/* --------------------------------------------------------------------------
   5. Buttons & Interactive Elements
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.9375rem;
  letter-spacing: 0.04em;
  padding: 0.9rem 1.85rem;
  border-radius: var(--border-radius-pill);
  transition: all var(--transition-fast);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background-color: var(--color-electric-blue);
  color: #FFFFFF;
  box-shadow: 0 8px 20px rgba(57, 120, 246, 0.3);
}

.btn-primary:hover {
  background-color: var(--color-electric-blue-hover);
  transform: translateY(-2px);
  box-shadow: 0 12px 26px rgba(57, 120, 246, 0.42);
}

.btn-secondary {
  background-color: transparent;
  color: var(--text-primary);
  border: 1.5px solid var(--border-color);
}

.btn-secondary:hover {
  border-color: var(--color-electric-blue);
  color: var(--color-electric-blue);
  background-color: rgba(57, 120, 246, 0.05);
  transform: translateY(-2px);
}

.btn-secondary-light {
  color: #FFFFFF;
  border-color: rgba(255, 255, 255, 0.25);
}

.btn-secondary-light:hover {
  border-color: #FFFFFF;
  background-color: rgba(255, 255, 255, 0.1);
  color: #FFFFFF;
}

.btn-sm {
  padding: 0.6rem 1.25rem;
  font-size: 0.8125rem;
}

.btn-lg {
  padding: 1.1rem 2.25rem;
  font-size: 1.05rem;
}

.btn svg {
  width: 18px;
  height: 18px;
  transition: transform var(--transition-fast);
}

.btn:hover svg {
  transform: translateX(4px);
}

/* --------------------------------------------------------------------------
   6. Navigation Bar
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-color);
  transition: all var(--transition-normal);
}

[data-theme="dark"] .site-header {
  background-color: rgba(10, 17, 36, 0.88);
}

.site-header.is-scrolled {
  box-shadow: 0 8px 24px rgba(16, 27, 53, 0.08);
  height: 72px;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

/* Brand Logo */
.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.brand-monogram {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background-color: var(--color-midnight-navy);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 10px rgba(16, 27, 53, 0.2);
  transition: transform var(--transition-fast);
}

.brand-logo:hover .brand-monogram {
  transform: rotate(-6deg) scale(1.05);
}

.brand-monogram svg {
  width: 26px;
  height: 26px;
}

.brand-wordmark {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.35rem;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.brand-wordmark .brand-accent {
  color: var(--color-electric-blue);
}

.brand-wordmark .brand-tld {
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 1.1rem;
}

/* Nav Links */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-link {
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-secondary);
  position: relative;
  padding: 0.5rem 0;
  transition: color var(--transition-fast);
}

.nav-link:hover {
  color: var(--color-electric-blue);
}

.nav-link.active {
  color: var(--color-electric-blue);
  font-weight: 700;
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 2.5px;
  border-radius: 2px;
  background-color: var(--color-electric-blue);
}

/* Nav Actions (Theme Toggle & CTA) */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.theme-toggle {
  width: 42px;
  height: 42px;
  border-radius: var(--border-radius-pill);
  border: 1px solid var(--border-color);
  background-color: var(--bg-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
  transition: all var(--transition-fast);
}

.theme-toggle:hover {
  border-color: var(--color-electric-blue);
  color: var(--color-electric-blue);
  transform: rotate(15deg);
}

.theme-toggle svg {
  width: 20px;
  height: 20px;
}

/* Hamburger Toggle */
.mobile-nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 32px;
  height: 22px;
  padding: 0;
  z-index: 1010;
}

.mobile-nav-toggle span {
  display: block;
  width: 100%;
  height: 2.5px;
  background-color: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition-normal);
}

.mobile-nav-toggle.is-active span:nth-child(1) {
  transform: translateY(10px) rotate(45deg);
}

.mobile-nav-toggle.is-active span:nth-child(2) {
  opacity: 0;
  transform: translateX(-10px);
}

.mobile-nav-toggle.is-active span:nth-child(3) {
  transform: translateY(-10px) rotate(-45deg);
}

/* --------------------------------------------------------------------------
   7. Home Page — Hero Section
   -------------------------------------------------------------------------- */
.hero-section {
  position: relative;
  overflow: hidden;
  padding-top: clamp(3rem, 6vw, 6rem);
  padding-bottom: clamp(4rem, 7vw, 7rem);
  background: radial-gradient(circle at 85% 20%, rgba(57, 120, 246, 0.08) 0%, transparent 55%),
              linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: clamp(2rem, 5vw, 4.5rem);
}

.hero-content {
  max-width: 650px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  background-color: var(--color-ice-white);
  border: 1px solid var(--color-light-border);
  padding: 0.45rem 1.15rem;
  border-radius: var(--border-radius-pill);
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--color-electric-blue);
  margin-bottom: 1.75rem;
  box-shadow: var(--shadow-sm);
}

[data-theme="dark"] .hero-badge {
  background-color: var(--bg-card);
  border-color: var(--border-color);
}

.hero-badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--color-electric-blue);
  box-shadow: 0 0 10px var(--color-electric-blue);
  animation: pulseDot 2s infinite;
}

@keyframes pulseDot {
  0% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.4); opacity: 0.6; }
  100% { transform: scale(1); opacity: 1; }
}

.hero-title {
  margin-bottom: 1.5rem;
  line-height: 1.08;
}

.hero-description {
  font-size: clamp(1.1rem, 1.2vw + 0.5rem, 1.35rem);
  line-height: 1.6;
  margin-bottom: 2.5rem;
  color: var(--text-secondary);
}

.hero-cta-group {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.25rem;
}

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

.hero-visual-card {
  width: 100%;
  max-width: 540px;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: 0 25px 50px rgba(16, 27, 53, 0.12);
  transition: transform var(--transition-normal);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
}

.hero-visual-card:hover {
  transform: translateY(-6px);
}

/* Floating Badges on Hero Composition */
.hero-tag-pill {
  position: absolute;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border-color);
  padding: 0.6rem 1.25rem;
  border-radius: var(--border-radius-pill);
  box-shadow: var(--shadow-md);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.8125rem;
  letter-spacing: 0.05em;
  color: var(--color-midnight-navy);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  z-index: 2;
}

[data-theme="dark"] .hero-tag-pill {
  background-color: rgba(20, 33, 66, 0.92);
  color: #FFFFFF;
}

/* --------------------------------------------------------------------------
   8. Introduction Section
   -------------------------------------------------------------------------- */
.intro-section {
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.intro-grid {
  display: grid;
  grid-template-columns: 1fr 1.35fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}

.intro-lead {
  font-size: clamp(1.25rem, 1.5vw + 0.5rem, 1.75rem);
  font-family: var(--font-heading);
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.4;
  margin-bottom: 1.5rem;
}

.intro-text-column p {
  margin-bottom: 1.25rem;
  font-size: 1.1rem;
}

/* --------------------------------------------------------------------------
   9. Selected Creative Work Section
   -------------------------------------------------------------------------- */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(1.75rem, 3.5vw, 2.75rem);
}

.project-card {
  background-color: var(--bg-card);
  border-radius: var(--border-radius-lg);
  border: 1px solid var(--border-color);
  overflow: hidden;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
  position: relative;
}

.project-card:hover {
  transform: translateY(-8px);
  border-color: var(--border-hover);
  box-shadow: var(--shadow-lg);
}

.project-thumb-wrapper {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background-color: var(--bg-secondary);
}

.project-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.project-card:hover .project-thumb {
  transform: scale(1.04);
}

.project-badge-overlay {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  background: rgba(16, 27, 53, 0.85);
  backdrop-filter: blur(8px);
  color: #FFFFFF;
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 0.35rem 0.85rem;
  border-radius: var(--border-radius-pill);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.project-info {
  padding: clamp(1.5rem, 2.5vw, 2.25rem);
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.project-category {
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--color-electric-blue);
  text-transform: uppercase;
  margin-bottom: 0.65rem;
}

.project-title {
  font-size: clamp(1.35rem, 1.5vw + 0.5rem, 1.75rem);
  margin-bottom: 0.85rem;
  transition: color var(--transition-fast);
}

.project-card:hover .project-title {
  color: var(--color-electric-blue);
}

.project-desc {
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.project-link-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.875rem;
  letter-spacing: 0.06em;
  color: var(--color-midnight-navy);
  border-top: 1px solid var(--border-color);
  padding-top: 1.25rem;
  width: 100%;
  transition: color var(--transition-fast);
}

[data-theme="dark"] .project-link-btn {
  color: #FFFFFF;
}

.project-link-btn svg {
  width: 16px;
  height: 16px;
  transition: transform var(--transition-fast);
}

.project-card:hover .project-link-btn {
  color: var(--color-electric-blue);
}

.project-card:hover .project-link-btn svg {
  transform: translateX(6px);
}

/* Sample Demonstration Notice Banner */
.portfolio-demo-notice {
  margin-top: 3.5rem;
  background-color: var(--bg-card);
  border: 1px dashed var(--color-electric-blue);
  border-radius: var(--border-radius-md);
  padding: 1.25rem 1.75rem;
  display: flex;
  align-items: center;
  gap: 1.25rem;
  font-size: 0.9375rem;
}

.portfolio-demo-notice svg {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  color: var(--color-electric-blue);
}

/* --------------------------------------------------------------------------
   10. Services Section & Service Cards
   -------------------------------------------------------------------------- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(1.25rem, 2vw, 2rem);
}

.service-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: clamp(1.75rem, 2.5vw, 2.25rem);
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
  position: relative;
}

.service-card:hover {
  transform: translateY(-8px);
  border-color: var(--color-electric-blue);
  box-shadow: var(--shadow-md);
}

.service-icon-box {
  width: 60px;
  height: 60px;
  border-radius: var(--border-radius-md);
  background-color: var(--tag-bg);
  color: var(--color-electric-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  transition: transform var(--transition-fast);
}

.service-card:hover .service-icon-box {
  background-color: var(--color-electric-blue);
  color: #FFFFFF;
  transform: scale(1.08);
}

.service-icon-box svg {
  width: 28px;
  height: 28px;
}

.service-title {
  font-size: 1.35rem;
  margin-bottom: 0.85rem;
}

.service-desc {
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.service-deliverables-list {
  border-top: 1px solid var(--border-color);
  padding-top: 1.25rem;
  margin-bottom: 1.5rem;
}

.service-deliverables-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 0.65rem;
}

.service-deliverables-list li svg {
  width: 16px;
  height: 16px;
  color: var(--color-electric-blue);
  flex-shrink: 0;
  margin-top: 2px;
}

/* --------------------------------------------------------------------------
   11. Creative Process Section (Services & About)
   -------------------------------------------------------------------------- */
.process-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1.5rem;
  position: relative;
}

.process-card {
  background-color: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--border-radius-md);
  padding: 1.75rem 1.25rem;
  transition: all var(--transition-normal);
  position: relative;
}

.process-card:hover {
  background-color: rgba(57, 120, 246, 0.15);
  border-color: var(--color-electric-blue);
  transform: translateY(-6px);
}

.process-step-num {
  font-family: var(--font-heading);
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--color-electric-blue);
  line-height: 1;
  margin-bottom: 1rem;
}

.process-card-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 0.65rem;
}

.process-card-desc {
  font-size: 0.875rem;
  color: var(--text-inverse-muted);
  line-height: 1.5;
}

/* --------------------------------------------------------------------------
   12. Blog Section & Cards
   -------------------------------------------------------------------------- */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(1.5rem, 2.5vw, 2.25rem);
}

.blog-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
}

.blog-card:hover {
  transform: translateY(-8px);
  border-color: var(--border-hover);
  box-shadow: var(--shadow-lg);
}

.blog-card-thumb-wrapper {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background-color: var(--bg-secondary);
}

.blog-card-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.blog-card:hover .blog-card-thumb {
  transform: scale(1.05);
}

.blog-card-body {
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.blog-meta-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-bottom: 0.85rem;
}

.blog-category-tag {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--color-electric-blue);
  background-color: var(--tag-bg);
  padding: 0.25rem 0.65rem;
  border-radius: var(--border-radius-pill);
}

.blog-card-title {
  font-size: 1.35rem;
  line-height: 1.3;
  margin-bottom: 0.85rem;
  transition: color var(--transition-fast);
}

.blog-card:hover .blog-card-title {
  color: var(--color-electric-blue);
}

.blog-card-excerpt {
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.blog-read-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.875rem;
  color: var(--color-electric-blue);
  border-top: 1px solid var(--border-color);
  padding-top: 1rem;
}

.blog-read-link svg {
  width: 16px;
  height: 16px;
  transition: transform var(--transition-fast);
}

.blog-card:hover .blog-read-link svg {
  transform: translateX(4px);
}

/* Blog Filter & Search Bar */
.blog-controls-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin-bottom: 3rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--border-color);
}

.filter-pills-list {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.filter-btn {
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 600;
  padding: 0.55rem 1.2rem;
  border-radius: var(--border-radius-pill);
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.filter-btn:hover {
  border-color: var(--color-electric-blue);
  color: var(--color-electric-blue);
}

.filter-btn.active {
  background-color: var(--color-midnight-navy);
  color: #FFFFFF;
  border-color: var(--color-midnight-navy);
}

[data-theme="dark"] .filter-btn.active {
  background-color: var(--color-electric-blue);
  border-color: var(--color-electric-blue);
}

.blog-search-box {
  position: relative;
  min-width: 280px;
}

.blog-search-input {
  width: 100%;
  padding: 0.65rem 1rem 0.65rem 2.6rem;
  border-radius: var(--border-radius-pill);
  border: 1.5px solid var(--border-color);
  background-color: var(--bg-card);
  font-size: 0.9375rem;
  transition: all var(--transition-fast);
}

.blog-search-input:focus {
  outline: none;
  border-color: var(--color-electric-blue);
  box-shadow: 0 0 0 3px var(--color-electric-blue-glow);
}

.blog-search-icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
  color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   13. Article Reader Page Layout (article.html)
   -------------------------------------------------------------------------- */
.article-header-section {
  padding-top: clamp(3rem, 5vw, 5rem);
  padding-bottom: clamp(2rem, 4vw, 3rem);
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
}

.article-header-container {
  max-width: 820px;
  margin: 0 auto;
}

.article-back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.875rem;
  color: var(--color-electric-blue);
  margin-bottom: 2rem;
  transition: transform var(--transition-fast);
}

.article-back-link:hover {
  transform: translateX(-4px);
}

.article-title {
  margin-bottom: 1.5rem;
  line-height: 1.15;
}

.article-lead {
  font-size: clamp(1.15rem, 1.2vw + 0.6rem, 1.35rem);
  line-height: 1.6;
  color: var(--text-primary);
  font-weight: 500;
  margin-bottom: 2rem;
}

.article-hero-wrapper {
  max-width: 960px;
  margin: -1.5rem auto 3.5rem auto;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-color);
}

.article-hero-img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.article-content-body {
  max-width: 780px;
  margin: 0 auto;
}

.article-content-body h2 {
  margin-top: 3rem;
  margin-bottom: 1.25rem;
  font-size: clamp(1.6rem, 2vw + 0.5rem, 2.2rem);
}

.article-content-body p {
  margin-bottom: 1.5rem;
  font-size: 1.125rem;
  line-height: 1.8;
}

.article-quote {
  margin: 2.75rem 0;
  padding: 2rem 2.25rem;
  background-color: var(--bg-secondary);
  border-left: 4px solid var(--color-electric-blue);
  border-radius: 0 var(--border-radius-md) var(--border-radius-md) 0;
  font-family: var(--font-heading);
  font-size: clamp(1.2rem, 1.5vw + 0.5rem, 1.45rem);
  font-weight: 600;
  line-height: 1.5;
  color: var(--text-primary);
  font-style: italic;
}

.article-takeaways-card {
  margin: 3.5rem 0;
  background-color: var(--tag-bg);
  border: 1.5px solid rgba(57, 120, 246, 0.25);
  border-radius: var(--border-radius-lg);
  padding: 2.25rem;
}

.article-takeaways-title {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--color-midnight-navy);
  margin-bottom: 1rem;
}

.article-takeaways-list li {
  position: relative;
  padding-left: 1.75rem;
  margin-bottom: 0.85rem;
  font-size: 1.05rem;
  color: var(--color-midnight-navy);
  font-weight: 500;
}

.article-takeaways-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-electric-blue);
  font-weight: 800;
}

/* --------------------------------------------------------------------------
   14. About Page Styles (about.html)
   -------------------------------------------------------------------------- */
.about-hero-grid {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: clamp(2.5rem, 5vw, 5rem);
  align-items: center;
}

.about-portrait-card {
  position: relative;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-color);
}

.about-bio-text {
  font-size: 1.15rem;
  line-height: 1.8;
  margin-bottom: 1.75rem;
}

/* Skills Matrix */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

.skill-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: 1.75rem;
  transition: all var(--transition-normal);
}

.skill-card:hover {
  transform: translateY(-5px);
  border-color: var(--color-electric-blue);
  box-shadow: var(--shadow-md);
}

.skill-card-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.skill-card-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--border-radius-sm);
  background-color: var(--tag-bg);
  color: var(--color-electric-blue);
  display: flex;
  align-items: center;
  justify-content: center;
}

.skill-card-icon svg {
  width: 22px;
  height: 22px;
}

.skill-card-title {
  font-size: 1.2rem;
  font-weight: 700;
}

.skill-tools-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1rem;
}

.tool-badge {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.35rem 0.75rem;
  border-radius: var(--border-radius-pill);
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
}

/* Journey Timeline */
.timeline-wrapper {
  position: relative;
  max-width: 860px;
  margin: 0 auto;
}

.timeline-wrapper::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 20px;
  width: 2px;
  background-color: var(--border-color);
}

.timeline-item {
  position: relative;
  padding-left: 60px;
  margin-bottom: 3rem;
}

.timeline-dot {
  position: absolute;
  left: 11px;
  top: 5px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background-color: var(--bg-primary);
  border: 4px solid var(--color-electric-blue);
  box-shadow: 0 0 0 4px var(--color-electric-blue-glow);
}

.timeline-year {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--color-electric-blue);
  margin-bottom: 0.35rem;
}

.timeline-title {
  font-size: 1.35rem;
  margin-bottom: 0.65rem;
}

/* --------------------------------------------------------------------------
   15. Contact Page Styles (contact.html)
   -------------------------------------------------------------------------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(2.5rem, 5vw, 5rem);
}

.contact-form-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: clamp(2rem, 4vw, 3.25rem);
  box-shadow: var(--shadow-md);
}

.form-group {
  margin-bottom: 1.75rem;
}

.form-label {
  display: block;
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 700;
  margin-bottom: 0.6rem;
  color: var(--text-primary);
}

.form-label .required-star {
  color: var(--color-electric-blue);
}

.form-control {
  width: 100%;
  padding: 0.9rem 1.25rem;
  border-radius: var(--border-radius-md);
  border: 1.5px solid var(--border-color);
  background-color: var(--bg-primary);
  font-size: 1rem;
  color: var(--text-primary);
  transition: all var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-electric-blue);
  box-shadow: 0 0 0 3px var(--color-electric-blue-glow);
}

.form-control.is-invalid {
  border-color: #E53E3E;
  background-color: rgba(229, 62, 62, 0.02);
}

.form-error-msg {
  color: #E53E3E;
  font-size: 0.8125rem;
  margin-top: 0.4rem;
  display: none;
}

.form-error-msg.visible {
  display: block;
}

/* Contact Info Side Card */
.contact-sidebar-card {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.contact-info-block {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: 2.25rem;
}

.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  margin-bottom: 1.75rem;
}

.contact-info-item:last-child {
  margin-bottom: 0;
}

.contact-icon-bubble {
  width: 48px;
  height: 48px;
  border-radius: var(--border-radius-md);
  background-color: var(--tag-bg);
  color: var(--color-electric-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-icon-bubble svg {
  width: 22px;
  height: 22px;
}

.placeholder-pill {
  display: inline-block;
  background-color: var(--tag-bg);
  color: var(--color-midnight-navy);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.2rem 0.55rem;
  border-radius: 4px;
  margin-left: 0.5rem;
  text-transform: uppercase;
}

/* FAQ Accordion */
.faq-accordion-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.faq-item.is-open {
  border-color: var(--color-electric-blue);
}

.faq-question-btn {
  width: 100%;
  padding: 1.35rem 1.75rem;
  text-align: left;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
}

.faq-chevron {
  width: 20px;
  height: 20px;
  color: var(--color-electric-blue);
  transition: transform var(--transition-normal);
  flex-shrink: 0;
}

.faq-item.is-open .faq-chevron {
  transform: rotate(180deg);
}

.faq-answer-panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal);
  padding: 0 1.75rem;
}

.faq-item.is-open .faq-answer-panel {
  padding-bottom: 1.5rem;
}

.faq-answer-panel p {
  font-size: 0.975rem;
  line-height: 1.65;
}

/* Form Demo Success Notification Modal */
.demo-modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(16, 27, 53, 0.75);
  backdrop-filter: blur(8px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
  padding: 1.5rem;
}

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

.demo-modal-box {
  background-color: var(--bg-card);
  border: 1.5px solid var(--color-electric-blue);
  border-radius: var(--border-radius-lg);
  padding: clamp(2rem, 4vw, 3rem);
  max-width: 540px;
  width: 100%;
  text-align: center;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.35);
  transform: translateY(20px) scale(0.95);
  transition: transform var(--transition-normal);
}

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

.demo-modal-icon {
  width: 70px;
  height: 70px;
  border-radius: 50%;
  background-color: rgba(57, 120, 246, 0.15);
  color: var(--color-electric-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem auto;
}

.demo-modal-icon svg {
  width: 36px;
  height: 36px;
}

/* --------------------------------------------------------------------------
   16. Project Detail Modal (Rich Interactive Case Study)
   -------------------------------------------------------------------------- */
.project-modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(16, 27, 53, 0.85);
  backdrop-filter: blur(10px);
  z-index: 2100;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
  padding: clamp(1rem, 3vw, 2.5rem);
}

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

.project-modal-container {
  background-color: var(--bg-primary);
  border-radius: var(--border-radius-lg);
  max-width: 980px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  border: 1px solid var(--border-color);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.45);
  position: relative;
  transform: scale(0.96);
  transition: transform var(--transition-normal);
}

.project-modal-overlay.is-active .project-modal-container {
  transform: scale(1);
}

.project-modal-close-btn {
  position: sticky;
  top: 1.5rem;
  right: 1.5rem;
  float: right;
  z-index: 10;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background-color: rgba(16, 27, 53, 0.85);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: all var(--transition-fast);
}

.project-modal-close-btn:hover {
  background-color: var(--color-electric-blue);
  transform: rotate(90deg);
}

.project-modal-header {
  padding: clamp(1.5rem, 3vw, 2.5rem);
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-color);
}

.project-modal-img-wrapper {
  width: 100%;
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
}

.project-modal-img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.project-modal-content-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: clamp(2rem, 4vw, 3rem);
  padding: clamp(1.5rem, 3vw, 2.5rem);
}

.modal-section-title {
  font-size: 1.25rem;
  margin-top: 1.5rem;
  margin-bottom: 0.75rem;
  color: var(--color-electric-blue);
}

.modal-section-title:first-child {
  margin-top: 0;
}

.modal-metadata-box {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  padding: 1.75rem;
}

.modal-meta-row {
  margin-bottom: 1.25rem;
}

.modal-meta-label {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 0.25rem;
}

.modal-meta-value {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
}

/* --------------------------------------------------------------------------
   17. Global Call-to-Action Component
   -------------------------------------------------------------------------- */
.cta-banner {
  background: linear-gradient(135deg, #101B35 0%, #172A52 100%);
  border-radius: var(--border-radius-lg);
  padding: clamp(3rem, 6vw, 5.5rem) clamp(1.5rem, 4vw, 4rem);
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(57, 120, 246, 0.25);
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(57, 120, 246, 0.25) 0%, transparent 70%);
  pointer-events: none;
}

.cta-banner-content {
  position: relative;
  z-index: 2;
  max-width: 680px;
  margin: 0 auto;
}

.cta-banner h2 {
  color: #FFFFFF;
  margin-bottom: 1.25rem;
}

.cta-banner p {
  color: var(--color-soft-periwinkle);
  font-size: clamp(1.1rem, 1.2vw + 0.6rem, 1.35rem);
  margin-bottom: 2.5rem;
}

/* --------------------------------------------------------------------------
   18. Global Footer
   -------------------------------------------------------------------------- */
.site-footer {
  background-color: var(--color-midnight-navy);
  color: #FFFFFF;
  padding-top: clamp(4rem, 6vw, 5.5rem);
  padding-bottom: 2.5rem;
  border-top: 1px solid rgba(227, 234, 245, 0.12);
  margin-top: auto;
}

.footer-top-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: clamp(2rem, 4vw, 3.5rem);
  padding-bottom: clamp(3rem, 5vw, 4.5rem);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand-col p {
  color: #A3B3D1;
  margin-top: 1.25rem;
  max-width: 320px;
  font-size: 0.95rem;
}

.footer-tagline-quote {
  margin-top: 1.25rem;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.875rem;
  letter-spacing: 0.1em;
  color: var(--color-electric-blue);
  text-transform: uppercase;
}

.footer-col-title {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: #FFFFFF;
  letter-spacing: 0.05em;
  margin-bottom: 1.5rem;
}

.footer-links-list li {
  margin-bottom: 0.85rem;
}

.footer-links-list a {
  color: #A3B3D1;
  font-size: 0.9375rem;
  transition: all var(--transition-fast);
}

.footer-links-list a:hover {
  color: var(--color-electric-blue);
  padding-left: 4px;
}

.footer-social-row {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  margin-top: 1rem;
}

.footer-social-link {
  width: 42px;
  height: 42px;
  border-radius: var(--border-radius-pill);
  background-color: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FFFFFF;
  transition: all var(--transition-fast);
}

.footer-social-link:hover {
  background-color: var(--color-electric-blue);
  border-color: var(--color-electric-blue);
  transform: translateY(-3px);
}

.footer-social-link svg {
  width: 18px;
  height: 18px;
}

.footer-bottom-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.5rem;
  padding-top: 2rem;
  font-size: 0.875rem;
  color: #7D8DAA;
}

/* Back to Top Button */
.back-to-top-btn {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: var(--color-midnight-navy);
  color: #FFFFFF;
  border: 1.5px solid var(--color-electric-blue);
  box-shadow: 0 10px 25px rgba(16, 27, 53, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 990;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition-normal);
}

.back-to-top-btn.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top-btn:hover {
  background-color: var(--color-electric-blue);
  transform: translateY(-4px);
}

.back-to-top-btn svg {
  width: 20px;
  height: 20px;
}

/* --------------------------------------------------------------------------
   19. Scroll Animation Utilities
   -------------------------------------------------------------------------- */
.reveal-on-scroll {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

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

/* Stagger delay classes */
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }

/* --------------------------------------------------------------------------
   20. Responsive Media Queries
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-content {
    max-width: 100%;
    margin: 0 auto;
  }

  .hero-cta-group {
    justify-content: center;
  }

  .intro-grid {
    grid-template-columns: 1fr;
  }

  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .footer-top-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .skills-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .project-modal-content-grid {
    grid-template-columns: 1fr;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }

  .about-hero-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .mobile-nav-toggle {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    background-color: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    padding: 2rem 1.5rem;
    flex-direction: column;
    align-items: flex-start;
    gap: 1.25rem;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
    transform: translateY(-120%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
  }

  .nav-menu.is-active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-actions .btn-sm {
    display: none;
  }

  .projects-grid {
    grid-template-columns: 1fr;
  }

  .blog-grid {
    grid-template-columns: 1fr;
  }

  .services-grid {
    grid-template-columns: 1fr;
  }

  .process-grid {
    grid-template-columns: 1fr;
  }

  .skills-grid {
    grid-template-columns: 1fr;
  }

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

  .footer-bottom-row {
    flex-direction: column;
    text-align: center;
  }

  .blog-controls-wrapper {
    flex-direction: column;
    align-items: stretch;
  }

  .blog-search-box {
    width: 100%;
  }
}

/* Reduced Motion Preference */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .reveal-on-scroll {
    opacity: 1 !important;
    transform: none !important;
  }
}