/* ============================================================
   DESIGN TOKENS — AI Infrastructure Architect Portfolio
   Dark-first: deep space navy + electric cyan accent
   ============================================================ */

@import url('https://api.fontshare.com/v2/css?f[]=cabinet-grotesk@400,500,700,800,900&f[]=satoshi@300,400,500,700&display=swap');

:root {
  /* Type Scale */
  --text-xs:   clamp(0.75rem,  0.7rem  + 0.25vw, 0.875rem);
  --text-sm:   clamp(0.875rem, 0.8rem  + 0.35vw, 1rem);
  --text-base: clamp(1rem,     0.95rem + 0.25vw, 1.125rem);
  --text-lg:   clamp(1.125rem, 1rem    + 0.75vw, 1.5rem);
  --text-xl:   clamp(1.5rem,   1.2rem  + 1.25vw, 2.25rem);
  --text-2xl:  clamp(2rem,     1.2rem  + 2.5vw,  3.5rem);
  --text-3xl:  clamp(2.5rem,   1rem    + 4vw,    5rem);
  --text-hero: clamp(3rem,     0.5rem  + 7vw,    8rem);

  /* Spacing */
  --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;
  --space-32: 8rem;

  /* Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in: cubic-bezier(0.4, 0, 1, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);

  /* Content widths */
  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1200px;

  /* Fonts */
  --font-display: 'Cabinet Grotesk', 'Inter', sans-serif;
  --font-body: 'Satoshi', 'Inter', sans-serif;
}

/* ============================================================
   DARK MODE (default — dark theme portfolio)
   ============================================================ */
:root, [data-theme="dark"] {
  /* Deep space background */
  --color-bg:             #080c12;
  --color-surface:        #0d1117;
  --color-surface-2:      #111620;
  --color-surface-offset: #141925;
  --color-surface-offset-2: #1a2030;
  --color-surface-dynamic: #1f2636;
  --color-divider:        #1e2535;
  --color-border:         #262e40;
  --color-border-subtle:  #1a2030;

  /* Text */
  --color-text:           #e8eaf0;
  --color-text-muted:     #8892a4;
  --color-text-faint:     #4a5568;
  --color-text-inverse:   #080c12;

  /* Electric Cyan primary */
  --color-primary:        #00d4ff;
  --color-primary-hover:  #00b8dd;
  --color-primary-active: #0099bb;
  --color-primary-dim:    rgba(0, 212, 255, 0.12);
  --color-primary-glow:   rgba(0, 212, 255, 0.25);

  /* Purple accent (secondary) */
  --color-accent:         #7c3aed;
  --color-accent-dim:     rgba(124, 58, 237, 0.15);

  /* Green for success/status */
  --color-success:        #10b981;
  --color-success-dim:    rgba(16, 185, 129, 0.12);

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.4);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.5);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.6);
  --shadow-glow: 0 0 40px rgba(0, 212, 255, 0.15);
  --shadow-glow-sm: 0 0 20px rgba(0, 212, 255, 0.1);

  /* Glass card */
  --glass-bg: rgba(13, 17, 23, 0.7);
  --glass-border: rgba(255,255,255,0.06);
  --glass-blur: blur(16px);
}

/* ============================================================
   LIGHT MODE (toggle)
   ============================================================ */
[data-theme="light"] {
  --color-bg:             #f8fafc;
  --color-surface:        #ffffff;
  --color-surface-2:      #f1f5f9;
  --color-surface-offset: #e8edf5;
  --color-surface-offset-2: #dde4f0;
  --color-surface-dynamic: #ccd6e8;
  --color-divider:        #dde4f0;
  --color-border:         #c8d3e8;
  --color-border-subtle:  #e2e8f4;

  --color-text:           #0f172a;
  --color-text-muted:     #475569;
  --color-text-faint:     #94a3b8;
  --color-text-inverse:   #f8fafc;

  --color-primary:        #0077aa;
  --color-primary-hover:  #005e88;
  --color-primary-active: #004466;
  --color-primary-dim:    rgba(0, 119, 170, 0.1);
  --color-primary-glow:   rgba(0, 119, 170, 0.2);

  --color-accent:         #7c3aed;
  --color-accent-dim:     rgba(124, 58, 237, 0.1);

  --color-success:        #059669;
  --color-success-dim:    rgba(5, 150, 105, 0.1);

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
  --shadow-glow: 0 0 40px rgba(0, 119, 170, 0.12);
  --shadow-glow-sm: 0 0 20px rgba(0, 119, 170, 0.08);

  --glass-bg: rgba(255, 255, 255, 0.85);
  --glass-border: rgba(0, 0, 0, 0.06);
  --glass-blur: blur(16px);
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme]) {
    --color-bg:             #f8fafc;
    --color-surface:        #ffffff;
    --color-surface-2:      #f1f5f9;
    --color-surface-offset: #e8edf5;
    --color-surface-offset-2: #dde4f0;
    --color-surface-dynamic: #ccd6e8;
    --color-divider:        #dde4f0;
    --color-border:         #c8d3e8;
    --color-border-subtle:  #e2e8f4;
    --color-text:           #0f172a;
    --color-text-muted:     #475569;
    --color-text-faint:     #94a3b8;
    --color-text-inverse:   #f8fafc;
    --color-primary:        #0077aa;
    --color-primary-hover:  #005e88;
    --color-primary-active: #004466;
    --color-primary-dim:    rgba(0, 119, 170, 0.1);
    --color-primary-glow:   rgba(0, 119, 170, 0.2);
    --color-accent:         #7c3aed;
    --color-accent-dim:     rgba(124, 58, 237, 0.1);
    --color-success:        #059669;
    --color-success-dim:    rgba(5, 150, 105, 0.1);
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
    --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
    --shadow-glow: 0 0 40px rgba(0, 119, 170, 0.12);
    --shadow-glow-sm: 0 0 20px rgba(0, 119, 170, 0.08);
    --glass-bg: rgba(255, 255, 255, 0.85);
    --glass-border: rgba(0, 0, 0, 0.06);
    --glass-blur: blur(16px);
  }
}

/* ============================================================
   GLOBAL LAYOUT
   ============================================================ */
body {
  font-family: var(--font-body);
  background: var(--color-bg);
  overflow-x: hidden;
}

/* Noise texture overlay */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.03'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 0;
  opacity: 0.4;
}

.container {
  width: 100%;
  max-width: var(--content-wide);
  margin: 0 auto;
  padding-inline: clamp(var(--space-4), 5vw, var(--space-16));
}

.container--narrow {
  max-width: var(--content-default);
}

/* ============================================================
   NAVIGATION
   ============================================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding-block: var(--space-4);
  background: rgba(8, 12, 18, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border-subtle);
  transition: background var(--transition-interactive), box-shadow var(--transition-interactive);
}

[data-theme="light"] .nav {
  background: rgba(248, 250, 252, 0.85);
}

.nav--scrolled {
  box-shadow: var(--shadow-md);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--color-text);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--text-sm);
  letter-spacing: -0.02em;
  white-space: nowrap;
}

.nav__logo-mark {
  flex-shrink: 0;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  list-style: none;
}

.nav__links a {
  text-decoration: none;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  letter-spacing: 0.02em;
  transition: color var(--transition-interactive);
}

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

.nav__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.nav__cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-5);
  background: var(--color-primary);
  color: var(--color-text-inverse);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 600;
  text-decoration: none;
  letter-spacing: 0.01em;
  transition: background var(--transition-interactive), transform var(--transition-interactive), box-shadow var(--transition-interactive);
}

.nav__cta:hover {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px var(--color-primary-glow);
}

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-lg);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  transition: color var(--transition-interactive), background var(--transition-interactive), border-color var(--transition-interactive);
}

.theme-toggle:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
  background: var(--color-primary-dim);
}

.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
  cursor: pointer;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
}

.nav__hamburger span {
  display: block;
  width: 20px;
  height: 1.5px;
  background: var(--color-text-muted);
  border-radius: 2px;
  transition: transform var(--transition-interactive), opacity var(--transition-interactive);
}

@media (max-width: 900px) {
  .nav__cta {
    display: none;
  }
}

/* ============================================================
   HERO SECTION
   ============================================================ */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding-top: 80px;
  overflow: hidden;
}

/* Animated gradient background */
.hero__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  overflow: hidden;
}

.hero__orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.15;
  animation: orb-drift 12s ease-in-out infinite alternate;
}

.hero__orb--1 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, #00d4ff, transparent);
  top: -200px;
  right: -100px;
  animation-delay: 0s;
}

.hero__orb--2 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, #7c3aed, transparent);
  bottom: 0;
  left: -100px;
  animation-delay: -4s;
}

.hero__orb--3 {
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, #10b981, transparent);
  top: 40%;
  left: 40%;
  animation-delay: -8s;
}

@keyframes orb-drift {
  from { transform: translate(0, 0) scale(1); }
  to   { transform: translate(30px, -40px) scale(1.1); }
}

/* Grid overlay */
.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 212, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 212, 255, 0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black 30%, transparent 100%);
}

[data-theme="light"] .hero__grid {
  background-image:
    linear-gradient(rgba(0, 119, 170, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 119, 170, 0.06) 1px, transparent 1px);
}

.hero__content {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
  padding-block: var(--space-20);
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-3) var(--space-1) var(--space-2);
  background: var(--color-primary-dim);
  border: 1px solid rgba(0, 212, 255, 0.2);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: var(--space-6);
}

.hero__badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-primary);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.6; transform: scale(0.8); }
}

.hero__headline {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--color-text);
  margin-bottom: var(--space-6);
}

.hero__headline em {
  font-style: normal;
  background: linear-gradient(135deg, var(--color-primary), #7c3aed);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__subheadline {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: var(--space-10);
  max-width: 52ch;
}

.hero__actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-bottom: var(--space-12);
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-8);
  background: var(--color-primary);
  color: #080c12;
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 700;
  text-decoration: none;
  letter-spacing: 0.01em;
  transition: background var(--transition-interactive), transform var(--transition-interactive), box-shadow var(--transition-interactive);
}

.btn-primary:hover {
  background: var(--color-primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px var(--color-primary-glow);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-8);
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 600;
  text-decoration: none;
  letter-spacing: 0.01em;
  transition: border-color var(--transition-interactive), background var(--transition-interactive), transform var(--transition-interactive);
}

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

.hero__stats {
  display: flex;
  gap: var(--space-10);
}

.hero__stat-value {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 900;
  color: var(--color-primary);
  line-height: 1;
  letter-spacing: -0.03em;
}

.hero__stat-label {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-top: var(--space-1);
}

/* Hero visual side */
.hero__visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero__visual-card {
  position: relative;
  width: 100%;
  max-width: 480px;
  aspect-ratio: 4/5;
  border-radius: var(--radius-2xl);
  overflow: hidden;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-glow), var(--shadow-lg);
}

.hero__avatar-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, #0d1117 0%, #141925 50%, #1a2030 100%);
}

.hero__avatar-glow {
  position: absolute;
  width: 80%;
  height: 60%;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  background: radial-gradient(ellipse at bottom center, rgba(0, 212, 255, 0.2), transparent 70%);
}

.hero__avatar-text {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
}

.hero__avatar-initials {
  font-family: var(--font-display);
  font-size: clamp(4rem, 12vw, 8rem);
  font-weight: 900;
  letter-spacing: -0.05em;
  line-height: 1;
  background: linear-gradient(135deg, var(--color-primary), #7c3aed);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__avatar-name {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.01em;
}

.hero__avatar-role {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  letter-spacing: 0.04em;
}

/* Floating badges on hero card */
.hero__float-badge {
  position: absolute;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-text);
  box-shadow: var(--shadow-md);
  white-space: nowrap;
}

.hero__float-badge--1 {
  top: var(--space-6);
  left: calc(-1 * var(--space-10));
  animation: float-1 4s ease-in-out infinite;
}

.hero__float-badge--2 {
  bottom: var(--space-12);
  right: calc(-1 * var(--space-8));
  animation: float-2 5s ease-in-out infinite;
}

.hero__float-badge--3 {
  top: 50%;
  right: calc(-1 * var(--space-12));
  transform: translateY(-50%);
  animation: float-3 6s ease-in-out infinite;
}

@keyframes float-1 {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-8px); }
}
@keyframes float-2 {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(8px); }
}
@keyframes float-3 {
  0%, 100% { transform: translateY(-50%); }
  50%       { transform: translateY(calc(-50% - 10px)); }
}

/* ============================================================
   SECTION SHARED
   ============================================================ */
.section {
  padding-block: clamp(var(--space-16), 8vw, var(--space-32));
  position: relative;
}

.section__header {
  text-align: center;
  margin-bottom: clamp(var(--space-12), 5vw, var(--space-20));
}

.section__tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-3);
  background: var(--color-primary-dim);
  border: 1px solid rgba(0, 212, 255, 0.15);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: var(--space-4);
}

.section__title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 900;
  letter-spacing: -0.03em;
  color: var(--color-text);
  line-height: 1.1;
  margin-bottom: var(--space-4);
}

.section__subtitle {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 60ch;
  margin: 0 auto;
  line-height: 1.7;
}

/* ============================================================
   GLASS CARD
   ============================================================ */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  transition: border-color var(--transition-interactive), box-shadow var(--transition-interactive), transform var(--transition-interactive);
}

.glass-card:hover {
  border-color: rgba(0, 212, 255, 0.15);
  box-shadow: var(--shadow-glow-sm);
}

/* ============================================================
   ABOUT SECTION
   ============================================================ */
.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  align-items: start;
}

.about__content p {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.8;
  margin-bottom: var(--space-4);
}

.about__content p:last-child {
  margin-bottom: 0;
}

.about__content strong {
  color: var(--color-text);
  font-weight: 600;
}

.about__highlight {
  color: var(--color-primary);
  font-weight: 600;
}

.about__cards {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.about__card {
  padding: var(--space-5) var(--space-6);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  transition: border-color var(--transition-interactive), transform var(--transition-interactive);
}

.about__card:hover {
  border-color: var(--color-primary);
  transform: translateX(4px);
}

.about__card-icon {
  font-size: 1.5rem;
  margin-bottom: var(--space-2);
}

.about__card-title {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-1);
}

.about__card-text {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  max-width: none;
}

/* ============================================================
   SKILLS SECTION
   ============================================================ */
.skills__bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent, var(--color-surface) 20%, var(--color-surface) 80%, transparent);
  z-index: -1;
}

.skills__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.skill-card {
  padding: var(--space-6);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  transition: border-color var(--transition-interactive), box-shadow var(--transition-interactive), transform var(--transition-interactive);
}

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

.skill-card__icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-dim);
  border: 1px solid rgba(0, 212, 255, 0.15);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-4);
  font-size: 1.25rem;
  color: var(--color-primary);
}

.skill-card__title {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-3);
}

.skill-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.skill-tag {
  padding: var(--space-1) var(--space-2);
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  letter-spacing: 0.02em;
}

/* ============================================================
   AUTOMATION ARCHITECTURE SECTION
   ============================================================ */
.arch__diagram {
  position: relative;
  padding: var(--space-12);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  overflow: hidden;
}

.arch__diagram::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
  opacity: 0.6;
}

.arch__layers {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.arch__layer {
  display: flex;
  align-items: stretch;
  gap: var(--space-4);
}

.arch__layer-label {
  display: flex;
  align-items: center;
  justify-content: center;
  writing-mode: vertical-rl;
  text-orientation: mixed;
  transform: rotate(180deg);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  width: 28px;
  flex-shrink: 0;
}

.arch__layer-nodes {
  flex: 1;
  display: grid;
  gap: var(--space-3);
  padding: var(--space-4);
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.arch__layer--input .arch__layer-nodes  { grid-template-columns: repeat(4, 1fr); border-color: rgba(0, 212, 255, 0.2); }
.arch__layer--process .arch__layer-nodes { grid-template-columns: repeat(3, 1fr); border-color: rgba(124, 58, 237, 0.2); }
.arch__layer--output .arch__layer-nodes  { grid-template-columns: repeat(4, 1fr); border-color: rgba(16, 185, 129, 0.2); }

.arch__node {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-2);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition-interactive), box-shadow var(--transition-interactive);
  cursor: default;
}

.arch__node:hover {
  border-color: var(--color-primary);
  box-shadow: 0 0 12px var(--color-primary-dim);
}

.arch__layer--input .arch__node:hover    { border-color: var(--color-primary); }
.arch__layer--process .arch__node:hover  { border-color: var(--color-accent); }
.arch__layer--output .arch__node:hover   { border-color: var(--color-success); }

.arch__node-icon {
  font-size: 1.25rem;
}

.arch__node-name {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-text-muted);
  text-align: center;
  line-height: 1.3;
}

.arch__connector {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 24px;
  margin-inline: calc(28px + var(--space-4));
}

.arch__connector-line {
  width: 100%;
  height: 1px;
  position: relative;
}

.arch__connector-line::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, var(--color-primary) 30%, var(--color-primary) 70%, transparent);
  opacity: 0.3;
}

.arch__connector-dots {
  display: flex;
  justify-content: center;
  gap: var(--space-16);
}

.arch__connector-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-primary);
  opacity: 0.4;
  animation: connector-pulse 2s ease-in-out infinite;
}

.arch__connector-dot:nth-child(2) { animation-delay: 0.4s; }
.arch__connector-dot:nth-child(3) { animation-delay: 0.8s; }

@keyframes connector-pulse {
  0%, 100% { opacity: 0.2; transform: scale(0.8); }
  50%       { opacity: 0.8; transform: scale(1.2); }
}

/* ============================================================
   EXAMPLE WORKFLOW SECTION
   ============================================================ */
.workflow__container {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--space-8);
  align-items: start;
}

.workflow__steps {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.workflow__step {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  padding: var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: border-color var(--transition-interactive), background var(--transition-interactive);
}

.workflow__step.active,
.workflow__step:hover {
  border-color: var(--color-primary);
  background: var(--color-primary-dim);
}

.workflow__step-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--color-text-muted);
  flex-shrink: 0;
  transition: background var(--transition-interactive), color var(--transition-interactive), border-color var(--transition-interactive);
}

.workflow__step.active .workflow__step-num,
.workflow__step:hover .workflow__step-num {
  background: var(--color-primary);
  color: #080c12;
  border-color: var(--color-primary);
}

.workflow__step-text {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  line-height: 1.4;
  transition: color var(--transition-interactive);
}

.workflow__step.active .workflow__step-text,
.workflow__step:hover .workflow__step-text {
  color: var(--color-text);
}

.workflow__visual {
  padding: var(--space-8);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  min-height: 400px;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  font-family: 'JetBrains Mono', 'Courier New', monospace;
  font-size: var(--text-sm);
  position: relative;
  overflow: hidden;
}

.workflow__visual::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
}

.workflow__code-header {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-2);
}

.workflow__code-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.workflow__code-title {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  margin-left: var(--space-2);
  font-family: var(--font-body);
  letter-spacing: 0.04em;
}

.workflow__code-block {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4) var(--space-5);
  font-size: 0.8rem;
  line-height: 1.7;
  color: var(--color-text-muted);
  overflow-x: auto;
  flex: 1;
}

.code-keyword  { color: #ff79c6; }
.code-string   { color: #f1fa8c; }
.code-comment  { color: var(--color-text-faint); font-style: italic; }
.code-fn       { color: #50fa7b; }
.code-var      { color: #8be9fd; }
.code-num      { color: #bd93f9; }
.code-flow     { color: var(--color-primary); font-weight: 600; }

/* ============================================================
   COMPANIES SECTION
   ============================================================ */
.companies__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
}

.company-card {
  padding: var(--space-8);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  transition: border-color var(--transition-interactive), transform var(--transition-interactive), box-shadow var(--transition-interactive);
  position: relative;
  overflow: hidden;
}

.company-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
}

.company-card--nobh::before {
  background: linear-gradient(90deg, var(--color-primary), #7c3aed);
}

.company-card--riskeys::before {
  background: linear-gradient(90deg, #10b981, var(--color-primary));
}

.company-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow-sm), var(--shadow-md);
}

.company-card--nobh:hover {
  border-color: var(--color-primary);
}

.company-card--riskeys:hover {
  border-color: var(--color-success);
}

.company-card__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.company-card__logo-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: var(--radius-xl);
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  flex-shrink: 0;
}

.company-card__badge {
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.04em;
}

.company-card--nobh .company-card__badge {
  background: var(--color-primary-dim);
  color: var(--color-primary);
  border: 1px solid rgba(0, 212, 255, 0.2);
}

.company-card--riskeys .company-card__badge {
  background: var(--color-success-dim);
  color: var(--color-success);
  border: 1px solid rgba(16, 185, 129, 0.2);
}

.company-card__name {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 900;
  color: var(--color-text);
  letter-spacing: -0.02em;
  margin-bottom: var(--space-1);
}

.company-card__tagline {
  font-size: var(--text-sm);
  color: var(--color-text-faint);
  font-weight: 500;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  margin-bottom: var(--space-4);
}

.company-card__desc {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-6);
  max-width: none;
}

.company-card__features {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.company-card__feature {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.company-card__feature::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
}

.company-card--nobh .company-card__feature::before {
  background: var(--color-primary);
}

.company-card--riskeys .company-card__feature::before {
  background: var(--color-success);
}

/* ============================================================
   EXPERIENCE TIMELINE
   ============================================================ */
.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 20px;
  top: 0;
  bottom: 0;
  width: 1px;
  background: linear-gradient(to bottom, var(--color-primary), var(--color-accent), transparent);
  opacity: 0.4;
}

.timeline__item {
  position: relative;
  padding-left: 60px;
  padding-bottom: var(--space-10);
}

.timeline__item:last-child {
  padding-bottom: 0;
}

.timeline__dot {
  position: absolute;
  left: 12px;
  top: 6px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--color-bg);
  border: 2px solid var(--color-primary);
  box-shadow: 0 0 12px var(--color-primary-glow);
  transition: transform var(--transition-interactive), box-shadow var(--transition-interactive);
}

.timeline__item:hover .timeline__dot {
  transform: scale(1.3);
  box-shadow: 0 0 20px var(--color-primary-glow);
}

.timeline__card {
  padding: var(--space-6);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  transition: border-color var(--transition-interactive), transform var(--transition-interactive);
}

.timeline__item:hover .timeline__card {
  border-color: var(--color-primary);
  transform: translateX(4px);
}

.timeline__meta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
  flex-wrap: wrap;
}

.timeline__date {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.timeline__type {
  padding: var(--space-1) var(--space-2);
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

.timeline__role {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: -0.02em;
  margin-bottom: var(--space-1);
}

.timeline__company {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}

.timeline__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
  max-width: none;
}

.timeline__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-4);
}

.timeline__tag {
  padding: 3px var(--space-2);
  background: var(--color-primary-dim);
  border: 1px solid rgba(0, 212, 255, 0.15);
  border-radius: var(--radius-sm);
  font-size: var(--text-xs);
  color: var(--color-primary);
  font-weight: 500;
}

/* ============================================================
   CONTACT SECTION
   ============================================================ */
.contact {
  background: var(--color-surface);
}

.contact__inner {
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
}

.contact__links {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-top: var(--space-8);
}

.contact__link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-6);
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-muted);
  text-decoration: none;
  transition: border-color var(--transition-interactive), color var(--transition-interactive), background var(--transition-interactive), transform var(--transition-interactive);
}

.contact__link:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-dim);
  transform: translateY(-2px);
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  padding-block: var(--space-8);
  border-top: 1px solid var(--color-divider);
  text-align: center;
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.footer__text {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

.footer__credit {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  text-decoration: none;
  transition: color var(--transition-interactive);
}

.footer__credit:hover {
  color: var(--color-primary);
}

/* ============================================================
   SCROLL REVEALS
   ============================================================ */
.fade-in {
  opacity: 1;
}

@supports (animation-timeline: scroll()) {
  .fade-in {
    opacity: 0;
    animation: reveal-fade linear both;
    animation-timeline: view();
    animation-range: entry 0% entry 60%;
  }
}

@keyframes reveal-fade {
  to { opacity: 1; }
}

/* ============================================================
   DIVIDER
   ============================================================ */
.section-divider {
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-border), transparent);
  margin: 0;
}

/* ============================================================
   MOBILE MENU
   ============================================================ */
.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 99;
  background: var(--color-bg);
  padding: 100px var(--space-8) var(--space-8);
  flex-direction: column;
  gap: var(--space-4);
}

.mobile-menu.open {
  display: flex;
}

.mobile-menu a {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 800;
  color: var(--color-text-muted);
  text-decoration: none;
  letter-spacing: -0.02em;
  transition: color var(--transition-interactive);
  border-bottom: 1px solid var(--color-border);
  padding-bottom: var(--space-4);
}

.mobile-menu a:hover {
  color: var(--color-primary);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px) {
  .hero__content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero__subheadline { margin-inline: auto; }
  .hero__actions { justify-content: center; }
  .hero__stats  { justify-content: center; }

  .hero__visual {
    display: none;
  }

  .hero__float-badge {
    display: none;
  }

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

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

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

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

  .nav__links {
    display: none;
  }

  .nav__hamburger {
    display: flex;
  }

  .timeline::before {
    left: 10px;
  }

  .timeline__item {
    padding-left: 40px;
  }

  .timeline__dot {
    left: 2px;
  }
}

@media (max-width: 600px) {
  .skills__grid {
    grid-template-columns: 1fr;
  }

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

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

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

  .footer__inner {
    flex-direction: column;
    text-align: center;
  }

  .hero__stats {
    gap: var(--space-6);
  }
}