/* ============================================
PORTFOLIO DESIGN SYSTEM v3.0 — PREMIUM
Vijay Kumar — Java Backend Engineer
Trendsetting: Glassmorphism · Split-screen · Magnetic
============================================ */

:root {
  /* === COLOR PALETTE === */
  --color-bg-primary: #0c0f14;
  --color-bg-secondary: #11151c;
  --color-bg-tertiary: #141920;
  --color-bg-elevated: #1c2330;
  --color-bg-input: #0f131a;
  --color-header-bg: rgba(12, 15, 20, 0.85);
  --color-glass: rgba(28, 35, 48, 0.45);
  --color-glass-border: rgba(148, 163, 184, 0.08);
  --color-glass-hover: rgba(28, 35, 48, 0.65);

  --color-text-primary: #e8ecf1;
  --color-text-secondary: #94a3b8;
  --color-text-muted: #64748b;
  --color-text-inverse: #0c0f14;
  --color-text-cream: #f5f0e8;

  --color-accent: #a78bfa;
  --color-accent-light: #c4b5fd;
  --color-accent-dark: #7c3aed;
  --color-accent-rgb: 167, 139, 250;

  --color-success: #10b981;
  --color-error: #ef4444;
  --color-border: rgba(148, 163, 184, 0.12);

  /* === SPACING SCALE (REMS) === */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* === TYPOGRAPHY SCALES === */
  --font-sans:
    "DM Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: "IBM Plex Mono", SFMono-Regular, Consolas, monospace;
  --font-serif: "Playfair Display", Georgia, serif;

  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  --text-6xl: 3.75rem;
  --text-7xl: 4.5rem;

  /* === MISC DESIGN TOKENS === */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 32px;
  --radius-full: 9999px;

  --transition-fast: 150ms cubic-bezier(0.25, 1, 0.5, 1);
  --transition-base: 250ms cubic-bezier(0.25, 1, 0.5, 1);
  --transition-slow: 400ms cubic-bezier(0.25, 1, 0.5, 1);
  --transition-lazy: 600ms cubic-bezier(0.25, 1, 0.5, 1);

  --z-base: 1;
  --z-elevated: 10;
  --z-drawer: 100;
  --z-sticky: 200;
  --z-cursor: 9999;
}

/* === LIGHT MODE OVERRIDES === */
:root[data-theme="light"] {
  --color-bg-primary: #f8fafc;
  --color-bg-secondary: #f1f5f9;
  --color-bg-tertiary: #e2e8f0;
  --color-bg-elevated: #ffffff;
  --color-bg-input: #ffffff;
  --color-header-bg: rgba(248, 250, 252, 0.85);
  --color-glass: rgba(255, 255, 255, 0.65);
  --color-glass-border: rgba(15, 23, 42, 0.06);
  --color-glass-hover: rgba(255, 255, 255, 0.85);

  --color-text-primary: #0f172a;
  --color-text-secondary: #475569;
  --color-text-muted: #64748b;
  --color-text-inverse: #f8fafc;

  --color-accent: #6d28d9;
  --color-accent-light: #7c3aed;
  --color-accent-dark: #4c1d95;
  --color-accent-rgb: 109, 40, 217;

  --color-border: rgba(15, 23, 42, 0.08);
}

/* === RESET & FOUNDATIONS === */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
  text-size-adjust: 100%;
}
body {
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  max-width: 100%;
  box-sizing: border-box;
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
button,
input,
textarea,
select {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
}
button {
  cursor: pointer;
}
ul,
ol {
  list-style: none;
}
a {
  color: inherit;
  text-decoration: none;
}

/* === ACCESSIBILITY === */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}
.sr-only-focusable:focus {
  position: fixed;
  top: var(--space-4);
  left: var(--space-4);
  width: auto;
  height: auto;
  padding: var(--space-3) var(--space-5);
  background: var(--color-bg-elevated);
  z-index: var(--z-cursor);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-accent);
}

/* === INTERACTION ELEMENTS === */
.cursor {
  position: fixed;
  width: 8px;
  height: 8px;
  background: var(--color-accent);
  border-radius: var(--radius-full);
  pointer-events: none;
  z-index: var(--z-cursor);
  transform: translate(-50%, -50%);
  transition:
    width var(--transition-fast),
    height var(--transition-fast),
    background-color var(--transition-fast);
}
.cursor-follower {
  position: fixed;
  width: 32px;
  height: 32px;
  border: 1px solid rgba(var(--color-accent-rgb), 0.3);
  border-radius: var(--radius-full);
  pointer-events: none;
  z-index: var(--z-cursor);
  transform: translate(-50%, -50%);
  transition:
    transform 120ms cubic-bezier(0.25, 1, 0.5, 1),
    width var(--transition-fast),
    height var(--transition-fast),
    border var(--transition-fast);
}

/* === GLOBAL LAYOUT & CONTAINERS === */
.container,
#profile,
#about,
#skills,
#projects,
.blog-grid,
.contact-split {
  width: 100%;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-6);
  padding-right: var(--space-6);
  box-sizing: border-box;
}

.about-grid,
.skills-grid {
  width: 100%;
  box-sizing: border-box;
}

/* === HEADER & NAVIGATION === */
#site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: var(--z-sticky);
  background-color: var(--color-header-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}
#desktop-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-6);
  height: 72px;
}
.logo-container .logo-img {
  object-fit: contain;
  transform: scale(1);
  transition: transform var(--transition-base);
}
.logo-container:hover .logo-img {
  transform: scale(1.05);
}

.nav-actions-wrap {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}
.nav-links a {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  position: relative;
  padding: var(--space-1) 0;
  transition: color var(--transition-fast);
}
.nav-links a:hover {
  color: var(--color-text-primary);
}
.nav-links a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 1.5px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--transition-base);
}
.nav-links a:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}
.nav-links .nav-cta {
  background: rgba(var(--color-accent-rgb), 0.1);
  color: var(--color-accent);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  border: 1px solid rgba(var(--color-accent-rgb), 0.2);
  transition: all var(--transition-base);
}
.nav-links .nav-cta:hover {
  background: var(--color-accent);
  color: var(--color-text-inverse);
  border-color: var(--color-accent);
}
.nav-links .nav-cta::after {
  display: none;
}

/* === HAMBURGER NAVIGATION === */
#hamburger-nav {
  display: none;
  justify-content: space-between;
  align-items: center;
  padding: 0 var(--space-4);
  height: 60px;
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
}
.mobile-nav-right {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  position: relative;
  z-index: 1001;
}
.hamburger-icon {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  width: 28px;
  height: 20px;
  background: none;
  border: none;
  padding: 0;
  z-index: 1002;
  cursor: pointer;
  position: relative;
}
.hamburger-icon span {
  width: 100%;
  height: 2.5px;
  background-color: var(--color-text-primary);
  border-radius: 2px;
  transition: all var(--transition-base);
  display: block;
}
.hamburger-icon.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.hamburger-icon.open span:nth-child(2) {
  opacity: 0;
  transform: translateX(-10px);
}
.hamburger-icon.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.menu-links {
  position: fixed;
  top: 0;
  right: 0;
  width: min(320px, 85vw);
  height: 100vh;
  background: var(--color-bg-elevated);
  padding: 90px var(--space-8) var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  z-index: var(--z-drawer);
  transform: translateX(100%);
  transition: transform var(--transition-slow);
  box-shadow: -10px 0 30px rgba(0, 0, 0, 0.2);
  border-left: 1px solid var(--color-border);
  max-width: 100%;
  overflow-y: auto;
}
.menu-links.open {
  transform: translateX(0);
}
.menu-links a {
  font-size: var(--text-lg);
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}
.menu-links a:hover {
  color: var(--color-accent);
}
.menu-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(4px);
  opacity: 0;
  visibility: hidden;
  z-index: calc(var(--z-drawer) - 1);
  transition: all var(--transition-base);
}
.menu-backdrop.open {
  opacity: 1;
  visibility: visible;
}

/* === CUSTOM THEME TOGGLE SWITCH === */
.custom-theme-switch {
  width: 46px;
  height: 26px;
  border-radius: var(--radius-full);
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border);
  padding: 2px;
  position: relative;
  overflow: hidden;
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.05);
  transition:
    background-color var(--transition-base),
    border-color var(--transition-base);
}
.theme-switch__slider {
  display: block;
  width: 100%;
  height: 100%;
  position: relative;
}
.theme-switch__thumb {
  position: absolute;
  top: 0;
  left: 0;
  width: 20px;
  height: 20px;
  border-radius: var(--radius-full);
  background: #ffffff;
  box-shadow:
    0 2px 4px rgba(0, 0, 0, 0.2),
    0 0 0 1px rgba(0, 0, 0, 0.05);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-base);
}
:root[data-theme="light"] .theme-switch__thumb {
  transform: translateX(20px);
  background: var(--color-bg-primary);
}
.theme-switch__icon {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity var(--transition-fast);
}
.theme-switch__icon--sun {
  right: 3px;
  color: var(--color-text-muted);
  opacity: 1;
}
:root[data-theme="light"] .theme-switch__icon--sun {
  opacity: 0;
}
.theme-switch__icon--sparkle {
  color: var(--color-accent);
  opacity: 0;
  transform: scale(0.6);
  transition: all var(--transition-base);
}
:root[data-theme="light"] .theme-switch__icon--sparkle {
  opacity: 1;
  transform: scale(1);
}

/* === BUTTON UTILITIES === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-sm);
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  text-align: center;
}
.btn-primary {
  background: var(--color-accent);
  color: var(--color-text-inverse);
}
.btn-primary:hover {
  background: var(--color-accent-light);
  transform: translateY(-1px);
}
.btn-ghost {
  border: 1px solid var(--color-border);
  color: var(--color-text-primary);
  background: transparent;
}
.btn-ghost:hover {
  background: var(--color-bg-tertiary);
  border-color: var(--color-text-secondary);
}
.btn-sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-xs);
  border-radius: var(--radius-sm);
}

/* === PROFILE / HERO SECTION === */
#profile {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  padding-top: 100px;
  padding-bottom: var(--space-12);
  gap: var(--space-12);
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  width: 100%;
  padding-left: var(--space-6);
  padding-right: var(--space-6);
}
.hero-content {
  flex: 1;
  max-width: 640px;
}
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: rgba(var(--color-accent-rgb), 0.08);
  border: 1px solid rgba(var(--color-accent-rgb), 0.15);
  color: var(--color-accent);
  padding: var(--space-1.5) var(--space-3.5);
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 600;
  margin-bottom: var(--space-4);
}
.tag-dot {
  width: 6px;
  height: 6px;
  border-radius: var(--radius-full);
  background: var(--color-accent);
  animation: pulse 2s infinite;
}
.hero-name {
  font-size: var(--text-6xl);
  font-family: var(--font-serif);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: var(--space-2);
  letter-spacing: -0.02em;
}
.hero-role {
  font-size: var(--text-2xl);
  font-weight: 500;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-3);
}
.hero-stack {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-accent);
  font-weight: 500;
  margin-bottom: var(--space-4);
}
.hero-proof {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-6);
}
.hero-proof-link {
  color: var(--color-text-primary);
  font-weight: 500;
  border-bottom: 1px solid var(--color-text-muted);
  transition: all var(--transition-fast);
}
.hero-proof-link:hover {
  color: var(--color-accent);
  border-color: var(--color-accent);
}
.hero-actions {
  display: flex;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
  flex-wrap: wrap;
}
#socials-container {
  display: flex;
  gap: var(--space-4);
}
#socials-container a {
  filter: grayscale(1) opacity(0.6);
  transition: all var(--transition-base);
}
#socials-container a:hover {
  filter: grayscale(0) opacity(1);
  transform: translateY(-2px);
}

.hero-photo-wrap {
  flex-shrink: 0;
  display: flex;
  justify-content: center;
}
.hero-photo-frame {
  width: 320px;
  aspect-ratio: 1;
  border-radius: var(--radius-xl);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  overflow: hidden;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
  position: relative;
}
.hero-photo-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}
.hero-photo-frame:hover img {
  transform: scale(1.03);
}

/* === SECTION STRUCTURE === */
section {
  padding: var(--space-20) var(--space-6);
  position: relative;
  margin-left: auto;
  margin-right: auto;
  width: 100%;
  max-width: 1200px;
}
.section-header {
  text-align: center;
  margin-bottom: var(--space-12);
  width: 100%;
}
.section__text__p1 {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-accent);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-2);
}
.section-title {
  font-size: var(--text-4xl);
  font-family: var(--font-serif);
  font-weight: 700;
  letter-spacing: -0.01em;
}

/* === ABOUT SECTION === */
#about {
  background: var(--color-bg-secondary);
  margin-left: auto;
  margin-right: auto;
  max-width: 1200px;
}
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: var(--space-12);
  align-items: center;
  margin-left: auto;
  margin-right: auto;
}
.about-pic-wrap {
  width: 100%;
  aspect-ratio: 1 / 1;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
}
.about-pic {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.about-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  justify-content: center;
  height: 100%;
}
.about-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}
.about-card {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  padding: var(--space-5);
  border-radius: var(--radius-md);
  text-align: center;
  transition:
    border-color var(--transition-base),
    transform var(--transition-base);
}
.about-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-2px);
}
.about-card-icon {
  margin: 0 auto var(--space-3);
  filter: var(--icon-filter);
}
.about-card h3 {
  font-size: var(--text-base);
  font-weight: 600;
  margin-bottom: var(--space-1);
}
.about-card p {
  font-size: var(--text-xs);
  color: var(--color-text-secondary);
}
.about-text {
  color: var(--color-text-secondary);
  font-size: var(--text-base);
  line-height: 1.7;
}
.about-text strong {
  color: var(--color-text-primary);
  font-weight: 500;
}

/* === SKILLS SECTION === */
#skills {
  margin-left: auto;
  margin-right: auto;
  max-width: 1200px;
}
.skills-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
  margin-left: auto;
  margin-right: auto;
}
.skills-group {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  padding: var(--space-6);
  border-radius: var(--radius-lg);
}
.skills-group-title {
  font-size: var(--text-lg);
  font-weight: 600;
  margin-bottom: var(--space-5);
  color: var(--color-text-primary);
  border-left: 3px solid var(--color-accent);
  padding-left: var(--space-3);
}
.skills-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.skill-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.skill-name {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
}
.skill-bar {
  width: 100%;
  height: 6px;
  appearance: none;
  border: none;
  background: var(--color-bg-tertiary);
  border-radius: var(--radius-full);
  display: block;
  overflow: hidden;
}
.skill-bar::-webkit-meter-bar {
  background: var(--color-bg-tertiary);
  border: none;
  border-radius: var(--radius-full);
}
.skill-bar::-webkit-meter-value {
  background: var(--color-accent);
  border-radius: var(--radius-full);
  transition: width 1s ease-out;
}
.skill-bar::-moz-meter-bar {
  background: var(--color-accent);
  border-radius: var(--radius-full);
}

/* === PROJECTS SECTION === */
#projects {
  margin-left: auto;
  margin-right: auto;
  max-width: 1200px;
}
.project-card {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition:
    border-color var(--transition-base),
    transform var(--transition-base),
    box-shadow var(--transition-base);
}
.project-card:hover {
  border-color: rgba(var(--color-accent-rgb), 0.3);
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.15);
}
.project-img-wrap {
  width: 100%;
  aspect-ratio: 1.6;
  overflow: hidden;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg-tertiary);
}
.project-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}
.project-card:hover .project-img-wrap img {
  transform: scale(1.02);
}

.project-info {
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  flex: 1;
}
.project-stack {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-accent);
  font-weight: 500;
  margin-bottom: var(--space-2);
}
.project-title {
  font-size: var(--text-xl);
  font-weight: 600;
  margin-bottom: var(--space-3);
  color: var(--color-text-primary);
}
.project-desc {
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
  line-height: 1.6;
  margin-bottom: var(--space-4);
}
.project-info .btn-container {
  margin-top: auto;
  display: flex;
  gap: var(--space-3);
}

/* Featured Project Structure */
.project-featured {
  flex-direction: row;
  margin-bottom: var(--space-8);
  border-color: rgba(var(--color-accent-rgb), 0.2);
  background:
    radial-gradient(
      100% 100% at top left,
      rgba(var(--color-accent-rgb), 0.04) 0%,
      transparent 100%
    ),
    var(--color-bg-secondary);
  position: relative;
}
.project-featured .project-info {
  padding: var(--space-8);
}
.project-badge {
  position: absolute;
  top: var(--space-4);
  left: var(--space-4);
  background: var(--color-success);
  color: #ffffff;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 600;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.2);
}
.project-claims {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--space-6) 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
}
.project-claims li {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  position: relative;
  padding-left: var(--space-5);
  line-height: 1.5;
}
.project-claims li::before {
  content: "→";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--color-accent);
  font-weight: 600;
}
.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}

/* === ENGINEERING LOG / BLOG === */
#blog {
  background: var(--color-bg-secondary);
  margin-left: auto;
  margin-right: auto;
  max-width: 1200px;
}
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
  margin-bottom: var(--space-8);
  margin-left: auto;
  margin-right: auto;
}
.blog-card {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  transition:
    border-color var(--transition-base),
    transform var(--transition-base);
}
.blog-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-2px);
}
.blog-meta {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-bottom: var(--space-2);
}
.blog-title {
  font-size: var(--text-lg);
  font-weight: 600;
  margin-bottom: var(--space-2);
  line-height: 1.4;
}
.blog-title a:hover {
  color: var(--color-accent);
}
.blog-excerpt {
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
  line-height: 1.5;
  margin-bottom: var(--space-4);
}
.blog-link {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-accent);
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  margin-top: auto;
}
.blog-link:hover .link-arrow {
  transform: translateX(2px);
}
.link-arrow {
  transition: transform var(--transition-fast);
}
.blog-footer {
  text-align: center;
}

/* Blog Engine States */
.blog-state {
  text-align: center;
  padding: var(--space-12) var(--space-4);
  max-width: 400px;
  margin: 0 auto;
}
.state-icon {
  font-size: var(--text-4xl);
  margin-bottom: var(--space-3);
}
.blog-state h3 {
  font-size: var(--text-lg);
  font-weight: 600;
  margin-bottom: var(--space-1);
}
.blog-state p {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-4);
}
.hidden {
  display: none !important;
}

/* Skeleton Loading Structure */
.blog-skeleton * {
  background: linear-gradient(
    90deg,
    var(--color-bg-tertiary) 25%,
    var(--color-border) 50%,
    var(--color-bg-tertiary) 75%
  );
  background-size: 200% 100%;
  animation: skeleton-shimmer 1.4s infinite linear;
  border-radius: var(--radius-sm);
}
.sk-meta {
  width: 40%;
  height: 14px;
  margin-bottom: var(--space-3);
}
.sk-title {
  width: 90%;
  height: 22px;
  margin-bottom: var(--space-2);
}
.sk-excerpt {
  width: 100%;
  height: 44px;
  margin-bottom: var(--space-4);
}
.sk-link {
  width: 30%;
  height: 14px;
}

/* === PREMIUM CONTACT EXPERIENCE === */
#contact {
  background: var(--color-bg-primary);
  overflow: hidden;
  padding: var(--space-24) var(--space-6);
  margin-left: auto;
  margin-right: auto;
  max-width: 1200px;
  width: 100%;
}
.contact-ambient {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  z-index: var(--z-base);
  opacity: 0.7;
}
.orb {
  position: absolute;
  border-radius: var(--radius-full);
  filter: blur(120px);
  mix-blend-mode: screen;
  opacity: 0.15;
}
.orb-1 {
  width: 400px;
  height: 400px;
  background: var(--color-accent);
  top: -10%;
  left: -10%;
  animation: float-slow 20s infinite alternate;
}
.orb-2 {
  width: 500px;
  height: 500px;
  background: var(--color-accent-dark);
  bottom: -10%;
  right: -10%;
  animation: float-slow 25s infinite alternate-reverse;
}
.orb-3 {
  width: 300px;
  height: 300px;
  background: #3b82f6;
  top: 40%;
  left: 50%;
  animation: float-slow 18s infinite alternate;
}
.contact-split {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: var(--space-8);
  position: relative;
  z-index: var(--z-elevated);
  width: 100%;
  align-items: center;
}
.contact-visual {
  display: flex;
  align-items: center;
  justify-content: flex-start;
}
.contact-visual-inner {
  max-width: 480px;
  width: 100%;
  padding-right: var(--space-4);
}
.contact-eyebrow {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-accent);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-2);
}
.contact-headline {
  font-size: var(--text-5xl);
  font-family: var(--font-serif);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-4);
}
.contact-headline em {
  font-family: var(--font-sans);
  font-weight: 400;
  font-style: italic;
  color: var(--color-text-muted);
}
.contact-subline {
  color: var(--color-text-secondary);
  font-size: var(--text-base);
  margin-bottom: var(--space-8);
}

.contact-channels {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.channel-card {
  background: var(--color-glass);
  border: 1px solid var(--color-glass-border);
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: space-between; /* Ensures arrows stick perfectly to the right border */
  transition: all var(--transition-base);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.channel-card:hover {
  background: var(--color-glass-hover);
  border-color: rgba(var(--color-accent-rgb), 0.2);
  transform: translateY(-2px);
}
.channel-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-primary);
  margin-right: var(--space-4);
  flex-shrink: 0;
}
.channel-icon svg {
  width: 20px;
  height: 20px;
}
.channel-icon--linkedin {
  color: #0a66c2;
}
.channel-icon--github {
  color: var(--color-text-primary);
}
.channel-info {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-width: 0;
}
.channel-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.channel-value {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.channel-arrow {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  transition:
    transform var(--transition-fast),
    color var(--transition-fast);
  margin-left: var(--space-2);
  width: 24px;          /* Assigns a fixed width container for the arrows */
  height: 24px;         /* Assigns a fixed height container */
  display: inline-flex; /* Centers different shapes structurally */
  align-items: center;
  justify-content: center;
}
.channel-card:hover .channel-arrow {
  transform: translateX(3px);
  color: var(--color-accent);
}

/* Form Engine Structure */
.contact-form-panel {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
}
.contact-form-panel-inner {
  width: 100%;
  max-width: 500px;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  position: relative;
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.1);
}
.form-progress {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--color-bg-tertiary);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  overflow: hidden;
}
.form-progress-bar {
  height: 100%;
  width: 25%;
  background: var(--color-accent);
  transition: width var(--transition-base);
}
.contact-form .honeypot {
  display: none;
}

.form-step {
  display: none;
  flex-direction: column;
}
.form-step.active {
  display: flex;
  animation: fadeIn var(--transition-base);
}
.form-step-label {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  margin-bottom: var(--space-6);
}
.form-step-number {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-accent);
  font-weight: 600;
}
.form-step-question {
  font-size: var(--text-2xl);
  font-weight: 600;
  color: var(--color-text-primary);
  letter-spacing: -0.01em;
}
.form-step-input {
  font-size: var(--text-lg);
  padding: var(--space-3) 0;
  border-bottom: 2px solid var(--color-border);
  color: var(--color-text-primary);
  width: 100%;
  transition: border-color var(--transition-fast);
}
.form-step-input::placeholder {
  color: var(--color-text-muted);
  font-weight: 400;
  opacity: 0.5;
}
.form-step-input:focus {
  outline: none;
  border-color: var(--color-accent);
}
.form-step-textarea {
  resize: none;
  font-size: var(--text-base);
  border: 2px solid var(--color-border);
  padding: var(--space-3);
  border-radius: var(--radius-md);
  background: var(--color-bg-input);
}
.form-step-textarea:focus {
  border-color: var(--color-accent);
  background: var(--color-bg-secondary);
}

.field-error {
  font-size: var(--text-xs);
  color: var(--color-error);
  font-weight: 500;
  margin-top: var(--space-2);
  min-height: 18px;
}
.form-step-next {
  align-self: flex-start;
  margin-top: var(--space-4);
  background: var(--color-text-primary);
  color: var(--color-text-inverse);
  font-weight: 600;
  font-size: var(--text-sm);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-md);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  transition: all var(--transition-base);
}
.form-step-next:hover {
  background: var(--color-accent);
  color: var(--color-text-inverse);
}
.form-step-next-arrow {
  transition: transform var(--transition-fast);
}
.form-step-next:hover .form-step-next-arrow {
  transform: translateX(2px);
}

.form-step-actions {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-4);
}
.form-step-back {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  padding: var(--space-3) var(--space-4);
  transition: color var(--transition-fast);
}
.form-step-back:hover {
  color: var(--color-text-primary);
}

.form-step-submit {
  background: var(--color-accent);
  color: var(--color-text-inverse);
  font-weight: 600;
  font-size: var(--text-sm);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-md);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  transition: all var(--transition-base);
  min-width: 140px;
  position: relative;
}
.form-step-submit:hover {
  background: var(--color-accent-light);
}
.form-step-submit .btn-spinner {
  display: none;
  width: 16px;
  height: 16px;
  border: 2px solid transparent;
  border-top-color: currentColor;
  border-radius: var(--radius-full);
  animation: spin 0.6s linear infinite;
}
.form-step-submit.loading .btn-text {
  opacity: 0.3;
}
.form-step-submit.loading .btn-spinner {
  display: block;
  position: absolute;
}

.form-step-success {
  text-align: center;
  padding: var(--space-4) 0;
}
.success-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-full);
  background: rgba(16, 185, 129, 0.1);
  color: var(--color-success);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-4);
}
.success-icon svg {
  width: 28px;
  height: 28px;
}
.success-title {
  font-size: var(--text-xl);
  font-weight: 600;
  margin-bottom: var(--space-1);
}
.success-message {
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
  margin-bottom: var(--space-5);
}
.form-step-reset {
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-accent);
  border: 1px solid rgba(var(--color-accent-rgb), 0.2);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
}
.form-step-reset:hover {
  background: rgba(var(--color-accent-rgb), 0.05);
  border-color: var(--color-accent);
}
.form-powered {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-align: center;
  margin-top: var(--space-6);
}
.form-powered a {
  text-decoration: underline;
}

/* === FOOTER LAYOUT === */
.footer {
  background: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
  padding: var(--space-8) 0;
}
.footer__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-6);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-6);
}
.footer__copy {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.5;
  flex: 1;
}
.footer__links {
  display: flex;
  gap: var(--space-5);
  flex-shrink: 0;
}
.footer__link {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  font-weight: 500;
  text-decoration: none;
  transition: color var(--transition-fast);
  white-space: nowrap;
}
.footer__link:hover {
  color: var(--color-accent);
}


/* === BACK TO TOP === */
#back-to-top {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  font-size: var(--text-lg);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--transition-base);
  z-index: var(--z-sticky);
  display: flex;
  align-items: center;
  justify-content: center;
}

#back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
#back-to-top:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  transform: translateY(-2px);
}

/* === SYSTEM KEYFRAMES & ANIMATIONS === */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}
@keyframes pulse {
  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.4;
    transform: scale(1.15);
  }
}
@keyframes float-slow {
  0% {
    transform: translateY(0px) translateX(0px) rotate(0deg);
  }
  50% {
    transform: translateY(15px) translateX(10px) rotate(3deg);
  }
  100% {
    transform: translateY(-10px) translateX(-15px) rotate(-3deg);
  }
}
@keyframes skeleton-shimmer {
  100% {
    transform: translateX(100%);
  }
}