/* ============================================================
   PORTFOLIO — styles.css
   Dark-theme personal portfolio stylesheet
   Fonts: Outfit (headings) + Space Grotesk (body) via Google Fonts
   ============================================================ */

/* ─── 1. DESIGN TOKENS ────────────────────────────────────────────────────── */
:root {
  /* Color palette — Forest Ember: warm dark green */
  --clr-bg:          #101A11;      /* Deep forest green background          */
  --clr-surface:     #172119;      /* Card / panel backgrounds              */
  --clr-surface-2:   #1E2D20;      /* Hover / elevated surfaces             */
  --clr-border:      rgba(255,255,255,0.07); /* Subtle dividers             */
  --clr-border-2:    rgba(255,255,255,0.13); /* More visible borders        */

  /* Accent colors */
  --clr-accent:      #4ADE80;      /* Primary emerald green                 */
  --clr-accent-dim:  #22C55E;      /* Deeper green variant                  */
  --clr-accent-glow: rgba(74, 222, 128, 0.18);
  --clr-cyan:        #FBBF24;      /* Secondary warm amber highlight        */
  --clr-cyan-dim:    #F59E0B;

  /* Text */
  --clr-text:        #F0FFF4;      /* Soft mint-white primary text          */
  --clr-text-muted:  #94A899;      /* Muted sage secondary text             */
  --clr-text-faint:  #4A6552;      /* Very dim forest text                  */

  /* Semantic */
  --clr-success:     #4ade80;
  --clr-error:       #f87171;

  /* Typography */
  --font-heading:    'Outfit', sans-serif;
  --font-body:       'Space Grotesk', sans-serif;

  /* Font sizes — fluid scale using clamp() */
  --fs-xs:           clamp(0.7rem,  1vw,   0.8rem);
  --fs-sm:           clamp(0.85rem, 1.2vw, 0.95rem);
  --fs-base:         clamp(1rem,    1.4vw, 1.05rem);
  --fs-md:           clamp(1.1rem,  1.6vw, 1.2rem);
  --fs-lg:           clamp(1.25rem, 2vw,   1.5rem);
  --fs-xl:           clamp(1.5rem,  3vw,   2rem);
  --fs-2xl:          clamp(2rem,    4vw,   2.8rem);
  --fs-hero:         clamp(2.8rem,  7vw,   5.5rem);

  /* Spacing */
  --sp-1:   0.25rem;
  --sp-2:   0.5rem;
  --sp-3:   0.75rem;
  --sp-4:   1rem;
  --sp-5:   1.25rem;
  --sp-6:   1.5rem;
  --sp-8:   2rem;
  --sp-10:  2.5rem;
  --sp-12:  3rem;
  --sp-16:  4rem;
  --sp-20:  5rem;
  --sp-24:  6rem;
  --sp-32:  8rem;

  /* Layout */
  --container-max:   1200px;
  --container-pad:   clamp(1.25rem, 5vw, 3rem);
  --section-gap:     clamp(4rem, 7vw, 6rem);

  /* Borders */
  --radius-sm:  6px;
  --radius-md:  12px;
  --radius-lg:  20px;
  --radius-xl:  28px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm:   0 2px 8px rgba(0,0,0,.35);
  --shadow-md:   0 8px 24px rgba(0,0,0,.45);
  --shadow-lg:   0 16px 48px rgba(0,0,0,.55);
  --shadow-glow: 0 0 40px rgba(74,222,128,.15);

  /* Transitions */
  --ease:      cubic-bezier(0.22, 1, 0.36, 1);
  --ease-in:   cubic-bezier(0.55, 0, 1, 0.45);
  --t-fast:    150ms;
  --t-base:    300ms;
  --t-slow:    600ms;

  /* Nav height (used for scroll offset) */
  --nav-h: 72px;
}

/* ─── 2. RESET & BASE ──────────────────────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  /* Offset anchors so content isn't hidden under fixed nav */
  scroll-padding-top: calc(var(--nav-h) + 1rem);
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: var(--fs-base);
  background-color: var(--clr-bg);
  color: var(--clr-text);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Accessible focus ring */
:focus-visible {
  outline: 2px solid var(--clr-accent);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* Reduce motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
}

a {
  color: inherit;
  text-decoration: none;
}

img, svg { display: block; }
ul { list-style: none; }

/* Selection color */
::selection {
  background: var(--clr-accent);
  color: #000;
}

/* ─── 3. LAYOUT UTILITIES ─────────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

.section {
  padding-block: var(--section-gap);
}

/* ─── 4. TYPOGRAPHY ───────────────────────────────────────────────────────── */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  line-height: 1.15;
  font-weight: 700;
}

.section__header {
  margin-bottom: clamp(1.5rem, 3vw, 2.5rem);
}

.section__label {
  display: inline-block;
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--clr-accent);
  margin-bottom: var(--sp-3);
}

.section__title {
  font-size: var(--fs-2xl);
  font-weight: 800;
  background: linear-gradient(135deg, var(--clr-text) 40%, var(--clr-text-muted));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ─── 5. BUTTONS ──────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: 0.75em 1.6em;
  border-radius: var(--radius-full);
  font-family: var(--font-body);
  font-size: var(--fs-sm);
  font-weight: 600;
  letter-spacing: 0.02em;
  cursor: pointer;
  border: none;
  transition: transform var(--t-base) var(--ease),
              box-shadow var(--t-base) var(--ease),
              background var(--t-base) var(--ease),
              color var(--t-base) var(--ease);
  white-space: nowrap;
}

.btn svg { width: 1em; height: 1em; flex-shrink: 0; }

.btn--primary {
  background: linear-gradient(135deg, var(--clr-accent), var(--clr-accent-dim));
  color: #000;
  box-shadow: 0 4px 20px rgba(74,222,128,.35);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(74,222,128,.5);
}

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

.btn--ghost {
  background: transparent;
  color: var(--clr-text);
  border: 1.5px solid var(--clr-border-2);
}

.btn--ghost:hover {
  border-color: var(--clr-accent);
  color: var(--clr-accent);
  transform: translateY(-2px);
}

.btn--outline {
  background: transparent;
  color: var(--clr-accent);
  border: 1.5px solid var(--clr-accent);
}

.btn--outline:hover {
  background: var(--clr-accent);
  color: #fff;
  transform: translateY(-2px);
}

.btn--full { width: 100%; justify-content: center; }

/* ─── 6. TAG CHIPS ────────────────────────────────────────────────────────── */
.tag {
  display: inline-block;
  padding: 0.2em 0.75em;
  background: rgba(74,222,128,.1);
  border: 1px solid rgba(74,222,128,.2);
  border-radius: var(--radius-full);
  font-size: var(--fs-xs);
  font-weight: 500;
  color: var(--clr-accent);
  letter-spacing: 0.02em;
}

.tag--sm {
  padding: 0.15em 0.6em;
  font-size: 0.7rem;
}

/* ─── 7. SCROLL REVEAL ────────────────────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--t-slow) var(--ease),
              transform var(--t-slow) var(--ease);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger children of a reveal container */
.reveal:nth-child(2) { transition-delay: 80ms; }
.reveal:nth-child(3) { transition-delay: 160ms; }
.reveal:nth-child(4) { transition-delay: 240ms; }

/* ─── 8. NAVIGATION ───────────────────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-h);
  /* Starts transparent, gains blur+bg on scroll via JS */
  transition: background var(--t-base) var(--ease),
              backdrop-filter var(--t-base) var(--ease),
              box-shadow var(--t-base) var(--ease);
}

.nav.scrolled {
  background: rgba(14, 24, 15, 0.88);
  backdrop-filter: blur(16px) saturate(1.3);
  -webkit-backdrop-filter: blur(16px) saturate(1.3);
  box-shadow: 0 1px 0 var(--clr-border);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

.nav__logo {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: var(--fs-lg);
  background: linear-gradient(135deg, var(--clr-accent), var(--clr-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.02em;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--sp-6);
}

.nav__link {
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--clr-text-muted);
  position: relative;
  transition: color var(--t-fast) var(--ease);
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--clr-accent);
  transition: width var(--t-base) var(--ease);
}

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

.nav__link:hover::after,
.nav__link.active::after {
  width: 100%;
}

.nav__link--cta {
  padding: 0.4em 1.1em;
  border: 1.5px solid var(--clr-accent);
  border-radius: var(--radius-full);
  color: var(--clr-accent) !important;
}

.nav__link--cta::after { display: none; }

.nav__link--cta:hover {
  background: var(--clr-accent);
  color: #000 !important;
}

/* Mobile hamburger */
.nav__hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav__hamburger span {
  display: block;
  height: 2px;
  background: var(--clr-text);
  border-radius: 2px;
  transition: transform var(--t-base) var(--ease),
              opacity var(--t-base) var(--ease);
}

/* X state */
.nav__hamburger[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav__hamburger[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.nav__hamburger[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ─── 9. HERO ─────────────────────────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

/* Canvas background — disabled, replaced with CSS noise pseudo-element */
/* .hero__canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.5;
} */

/* CSS noise/grain overlay — very subtle texture over the hero gradient */
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.04;
  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)'/%3E%3C/svg%3E");
  background-size: 256px 256px;
  background-repeat: repeat;
  z-index: 1;
}

/* Gradient orbs */
.hero__orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  pointer-events: none;
  animation: orbFloat 8s ease-in-out infinite;
}

.hero__orb--1 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(74,222,128,.22), transparent 70%);
  top: -10%;
  right: -5%;
  animation-delay: 0s;
}

.hero__orb--2 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(251,191,36,.16), transparent 70%);
  bottom: 5%;
  left: -5%;
  animation-delay: -3s;
}

.hero__orb--3 {
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(74,222,128,.10), transparent 70%);
  top: 40%;
  left: 40%;
  animation-delay: -5s;
}

@keyframes orbFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33%       { transform: translate(20px, -30px) scale(1.05); }
  66%       { transform: translate(-15px, 20px) scale(0.97); }
}

.hero__content {
  position: relative;
  z-index: 2;
  max-width: var(--container-max);
  width: 100%;
  margin-inline: auto;
  padding-inline: var(--container-pad);
  padding-top: var(--nav-h);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
}

.hero__text {
  display: flex;
  flex-direction: column;
}

/* ─── Hero visual (right column) ─────────────────────────────────────────── */
.hero__visual {
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
}

.hero__terminal {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border-2);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg), 0 0 60px rgba(74,222,128,.08);
  animation: termFloat 6s ease-in-out infinite;
}

@keyframes termFloat {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-10px); }
}

.hero__terminal-bar {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  background: var(--clr-surface-2);
  padding: var(--sp-3) var(--sp-4);
  border-bottom: 1px solid var(--clr-border);
}

.hero__terminal-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}
.hero__terminal-dot--red    { background: #FF5F57; }
.hero__terminal-dot--yellow { background: #FEBC2E; }
.hero__terminal-dot--green  { background: #28C840; }

.hero__terminal-filename {
  margin-left: var(--sp-3);
  font-size: var(--fs-xs);
  color: var(--clr-text-faint);
  font-family: monospace;
}

.hero__terminal-body {
  padding: var(--sp-6);
  font-family: 'Courier New', 'Monaco', monospace;
  font-size: clamp(0.78rem, 1.1vw, 0.9rem);
  line-height: 1.8;
  margin: 0;
  white-space: pre;
  overflow-x: auto;
}

/* Terminal syntax colours */
.tc-key   { color: var(--clr-cyan); }
.tc-str   { color: var(--clr-accent); }
.tc-brace { color: var(--clr-text-muted); }
.tc-punct { color: var(--clr-text-faint); }

.hero__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-3);
}

.hero__stat {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: var(--sp-4) var(--sp-3);
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: var(--sp-1);
}

.hero__stat-num {
  font-family: var(--font-heading);
  font-size: var(--fs-xl);
  font-weight: 800;
  color: var(--clr-accent);
  line-height: 1;
}

.hero__stat-plus {
  font-size: var(--fs-md);
  color: var(--clr-cyan);
}

.hero__stat-label {
  font-size: var(--fs-xs);
  color: var(--clr-text-faint);
  font-weight: 500;
}

.hero__badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: 0.3em 0.85em;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border-2);
  border-radius: var(--radius-full);
  font-size: var(--fs-xs);
  color: var(--clr-text-muted);
  font-weight: 500;
}

.hero__badge--available {
  border-color: rgba(74,222,128,.35);
  color: var(--clr-accent);
  background: rgba(74,222,128,.08);
}

.hero__badge-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--clr-accent);
  animation: pulseDot 2s ease-in-out infinite;
  flex-shrink: 0;
}

@keyframes pulseDot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.5; transform: scale(0.7); }
}

.hero__greeting {
  font-size: var(--fs-md);
  color: var(--clr-accent);
  font-weight: 500;
  letter-spacing: 0.04em;
  margin-bottom: var(--sp-2);
  transition-delay: 100ms;
}

.hero__name {
  font-size: var(--fs-hero);
  font-weight: 800;
  line-height: 1.0;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, #fff 0%, var(--clr-text-muted) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--sp-4);
  transition-delay: 200ms;
}

.hero__title {
  font-size: var(--fs-xl);
  font-weight: 500;
  color: var(--clr-text-muted);
  margin-bottom: var(--sp-6);
  transition-delay: 300ms;
  font-family: var(--font-body);
  line-height: 1.4;
}

.hero__title-highlight {
  color: var(--clr-cyan);
  font-weight: 600;
}

/* Blinking cursor for typing effect */
.cursor {
  display: inline-block;
  width: 2px;
  color: var(--clr-cyan);
  animation: blink 1s step-end infinite;
  font-weight: 300;
}

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

.hero__tagline {
  max-width: 600px;
  font-size: var(--fs-md);
  color: var(--clr-text-muted);
  line-height: 1.8;
  margin-bottom: var(--sp-10);
  transition-delay: 400ms;
}

.hero__cta {
  display: flex;
  gap: var(--sp-4);
  flex-wrap: wrap;
  transition-delay: 500ms;
}

/* Scroll indicator */
.hero__scroll {
  position: absolute;
  bottom: 2.5rem;
  left: var(--container-pad);
  grid-column: 1 / -1;
}

.hero__scroll-line {
  display: block;
  width: 2px;
  height: 60px;
  background: linear-gradient(to bottom, var(--clr-accent), transparent);
  margin-inline: auto;
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(1); transform-origin: top; }
  50%       { opacity: 1;   transform: scaleY(0.6); transform-origin: top; }
}

/* ─── 10. ABOUT ───────────────────────────────────────────────────────────── */
.about {
  background: var(--clr-surface);
  position: relative;
}

/* Subtle diagonal divider at top */
.about::before {
  content: '';
  position: absolute;
  top: -2px;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--clr-accent), transparent);
}

.about__grid {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: clamp(2.5rem, 6vw, 5rem);
  align-items: start;
}

/* Photo */
.about__photo-frame {
  position: relative;
}

.about__photo-img {
  width: 100%;
  aspect-ratio: 4 / 5;
  border-radius: var(--radius-xl);
  object-fit: cover;
  display: block;
}

/* Corner accent */
.about__photo-frame::before {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: calc(var(--radius-xl) + 4px);
  background: linear-gradient(135deg, var(--clr-accent), var(--clr-cyan), transparent 50%);
  z-index: -1;
  opacity: 0.6;
}

.about__photo-badge {
  position: absolute;
  bottom: 1rem;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(74,222,128,.1);
  border: 1px solid rgba(74,222,128,.3);
  color: var(--clr-success);
  padding: 0.3em 0.9em;
  border-radius: var(--radius-full);
  font-size: var(--fs-xs);
  font-weight: 600;
  white-space: nowrap;
}

.about__bio {
  color: var(--clr-text-muted);
  margin-bottom: var(--sp-5);
  font-size: var(--fs-md);
  line-height: 1.85;
}

.about__stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--sp-3);
  margin-bottom: var(--sp-6);
  padding: var(--sp-5) var(--sp-6);
  background: var(--clr-surface-2);
  border-radius: var(--radius-lg);
  border: 1px solid var(--clr-border);
}

.about__stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--sp-1);
}

.about__stat-num {
  font-family: var(--font-heading);
  font-size: var(--fs-xl);
  font-weight: 800;
  color: var(--clr-accent);
  line-height: 1;
}

.about__stat-label {
  font-size: var(--fs-xs);
  color: var(--clr-text-faint);
  font-weight: 500;
}

@media (max-width: 640px) {
  .about__stats { grid-template-columns: repeat(2, 1fr); }
}

.about__meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: var(--sp-4);
  margin-bottom: var(--sp-8);
  padding: var(--sp-6);
  background: var(--clr-surface-2);
  border-radius: var(--radius-lg);
  border: 1px solid var(--clr-border);
}

.about__meta-label {
  display: block;
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--clr-text-faint);
  margin-bottom: var(--sp-1);
}

.about__meta-value {
  font-weight: 600;
  font-size: var(--fs-sm);
  color: var(--clr-text);
}

.about__meta-value--available {
  color: var(--clr-success);
}

/* ─── 11. SKILLS ──────────────────────────────────────────────────────────── */
.skills {
  position: relative;
}

.skills__categories {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--sp-8);
}

.skills__group-title {
  font-size: var(--fs-sm);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--clr-text-muted);
  margin-bottom: var(--sp-5);
  padding-bottom: var(--sp-3);
  border-bottom: 1px solid var(--clr-border);
}

.skills__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  gap: var(--sp-3);
}

.skill-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-2);
  padding: var(--sp-4) var(--sp-3);
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  transition: transform var(--t-base) var(--ease),
              border-color var(--t-base) var(--ease),
              box-shadow var(--t-base) var(--ease),
              background var(--t-base) var(--ease);
  cursor: default;
}

.skill-card:hover {
  transform: translateY(-4px);
  border-color: var(--clr-accent);
  box-shadow: var(--shadow-glow);
  background: var(--clr-surface-2);
}

.skill-card i {
  font-size: 2rem;
  line-height: 1;
}

.skill-card svg {
  width: 2rem;
  height: 2rem;
  color: var(--clr-accent);
}

.skill-card span {
  font-size: var(--fs-xs);
  font-weight: 500;
  color: var(--clr-text-muted);
  text-align: center;
}

/* ─── 12. PROJECTS ────────────────────────────────────────────────────────── */
.projects {
  background: var(--clr-surface);
  position: relative;
}

.projects::before {
  content: '';
  position: absolute;
  top: -2px;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--clr-cyan), transparent);
}

.projects__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--sp-6);
  margin-bottom: var(--sp-12);
}

.project-card--featured {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: auto 1fr auto;
  gap: 0 var(--sp-8);
}

.project-card--featured .project-card__header {
  grid-column: 1 / -1;
}

.project-card--featured .project-card__title {
  grid-column: 1;
  align-self: start;
}

.project-card--featured .project-card__desc {
  grid-column: 1;
  font-size: var(--fs-base);
}

.project-card--featured .project-card__tags {
  grid-column: 1 / -1;
}

.project-card__featured-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.2em 0.7em;
  background: rgba(74,222,128,.12);
  border: 1px solid rgba(74,222,128,.3);
  border-radius: var(--radius-full);
  font-size: var(--fs-xs);
  font-weight: 600;
  color: var(--clr-accent);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.project-card {
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-xl);
  padding: var(--sp-8);
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
  transition: transform var(--t-slow) var(--ease),
              border-color var(--t-base) var(--ease),
              box-shadow var(--t-base) var(--ease);
  /* Each card slightly delayed */
}

.project-card:hover {
  transform: translateY(-6px);
  border-color: var(--clr-accent);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.project-card__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
}

.project-card__icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: rgba(74,222,128,.1);
  border: 1px solid rgba(74,222,128,.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--clr-accent);
  flex-shrink: 0;
}

.project-card__icon svg {
  width: 22px;
  height: 22px;
}

.project-card__links {
  display: flex;
  gap: var(--sp-3);
}

.project-card__link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  color: var(--clr-text-muted);
  transition: color var(--t-fast), background var(--t-fast);
}

.project-card__link svg {
  width: 18px;
  height: 18px;
}

.project-card__link:hover {
  color: var(--clr-accent);
  background: rgba(74,222,128,.1);
}

.project-card__title {
  font-size: var(--fs-lg);
  font-weight: 700;
  color: var(--clr-text);
  line-height: 1.3;
}

.project-card__desc {
  color: var(--clr-text-muted);
  font-size: var(--fs-sm);
  line-height: 1.8;
  flex: 1;
}

.project-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
  margin-top: auto;
}

.projects__more {
  text-align: center;
}

/* ─── 13. EXPERIENCE / TIMELINE ───────────────────────────────────────────── */
.timeline {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0;
}

/* The vertical line */
.timeline::before {
  content: '';
  position: absolute;
  left: 11px;
  top: 12px;
  bottom: 12px;
  width: 2px;
  background: linear-gradient(to bottom, var(--clr-accent), var(--clr-cyan), transparent);
  border-radius: 2px;
}

.timeline__item {
  position: relative;
  padding-left: calc(var(--sp-8) + var(--sp-4));
  padding-bottom: var(--sp-10);
}

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

/* Dot on the line */
.timeline__marker {
  position: absolute;
  left: 4px;
  top: 12px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--clr-accent);
  border: 3px solid var(--clr-bg);
  box-shadow: 0 0 0 2px var(--clr-accent), var(--shadow-glow);
  transition: transform var(--t-base) var(--ease);
  z-index: 1;
}

.timeline__item:hover .timeline__marker {
  transform: scale(1.3);
  background: var(--clr-cyan);
  box-shadow: 0 0 0 2px var(--clr-cyan), 0 0 20px rgba(251,191,36,.3);
}

.timeline__content {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: var(--sp-8);
  max-width: 860px;
  transition: border-color var(--t-base) var(--ease),
              box-shadow var(--t-base) var(--ease);
}

.timeline__item:hover .timeline__content {
  border-color: var(--clr-border-2);
  box-shadow: var(--shadow-md);
}

.timeline__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--sp-2) var(--sp-4);
  margin-bottom: var(--sp-5);
}

.timeline__role {
  font-size: var(--fs-lg);
  font-weight: 700;
  color: var(--clr-text);
}

.timeline__company {
  font-size: var(--fs-base);
  font-weight: 600;
  color: var(--clr-accent);
  transition: color var(--t-fast);
}

.timeline__company:hover { color: var(--clr-cyan); }

.timeline__period {
  font-size: var(--fs-xs);
  color: var(--clr-text-faint);
  font-weight: 500;
  letter-spacing: 0.04em;
  margin-left: auto;
}

.timeline__bullets {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  margin-bottom: var(--sp-5);
}

.timeline__bullets li {
  position: relative;
  padding-left: var(--sp-6);
  color: var(--clr-text-muted);
  font-size: var(--fs-sm);
  line-height: 1.75;
}

.timeline__bullets li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--clr-accent);
  font-size: 0.75em;
  top: 0.2em;
}

.timeline__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
}

/* ─── 14. CONTACT ─────────────────────────────────────────────────────────── */
.contact {
  background: var(--clr-surface);
  position: relative;
  overflow: hidden;
}

/* Big decorative text behind section */
.contact::before {
  content: '';
  position: absolute;
  top: -2px;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--clr-accent), transparent);
}

.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: clamp(2.5rem, 6vw, 5rem);
  align-items: start;
}

.contact__lead {
  font-size: var(--fs-md);
  color: var(--clr-text-muted);
  line-height: 1.85;
  margin-bottom: var(--sp-8);
}

.contact__links {
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
}

.contact__link {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  padding: var(--sp-4) var(--sp-5);
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  color: var(--clr-text-muted);
  font-size: var(--fs-sm);
  font-weight: 500;
  transition: border-color var(--t-base) var(--ease),
              color var(--t-base) var(--ease),
              transform var(--t-base) var(--ease);
}

.contact__link:hover {
  border-color: var(--clr-accent);
  color: var(--clr-text);
  transform: translateX(6px);
}

.contact__link-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: rgba(74,222,128,.1);
  border-radius: var(--radius-sm);
  flex-shrink: 0;
  color: var(--clr-accent);
}

.contact__link-icon svg {
  width: 18px;
  height: 18px;
}

/* Contact form */
.contact__form {
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-xl);
  padding: var(--sp-8);
  display: flex;
  flex-direction: column;
  gap: var(--sp-5);
}

.form__group {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
}

.form__label {
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--clr-text-muted);
}

.form__input {
  width: 100%;
  padding: 0.75em 1em;
  background: var(--clr-surface);
  border: 1.5px solid var(--clr-border);
  border-radius: var(--radius-md);
  color: var(--clr-text);
  font-family: var(--font-body);
  font-size: var(--fs-base);
  outline: none;
  transition: border-color var(--t-base) var(--ease),
              box-shadow var(--t-base) var(--ease);
}

.form__input:focus {
  border-color: var(--clr-accent);
  box-shadow: 0 0 0 3px var(--clr-accent-glow);
}

.form__input::placeholder {
  color: var(--clr-text-faint);
}

.form__textarea {
  resize: vertical;
  min-height: 130px;
  font-family: var(--font-body);
  line-height: 1.6;
}

.form__note {
  font-size: var(--fs-xs);
  color: var(--clr-text-faint);
  line-height: 1.6;
  text-align: center;
}

.form__note a {
  color: var(--clr-accent);
}

.form__success[hidden] { display: none; }
.form__success {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: var(--sp-6);
  background: rgba(74,222,128,.08);
  border: 1px solid rgba(74,222,128,.25);
  border-radius: var(--radius-md);
  color: var(--clr-accent);
  font-weight: 500;
  font-size: var(--fs-sm);
}

.form__success svg {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
  color: var(--clr-accent);
}

/* ─── 15. FOOTER ──────────────────────────────────────────────────────────── */
.footer {
  border-top: 1px solid var(--clr-border);
  padding-block: var(--sp-8);
}

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

.footer__copy {
  font-size: var(--fs-xs);
  color: var(--clr-text-faint);
}

.footer__social {
  display: flex;
  gap: var(--sp-4);
}

.footer__social-link {
  display: flex;
  align-items: center;
  color: var(--clr-text-faint);
  transition: color var(--t-fast);
}

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

.footer__social-link:hover { color: var(--clr-accent); }

/* ─── 16. RESPONSIVE ──────────────────────────────────────────────────────── */

/* Tablet */
@media (max-width: 900px) {
  .hero__content { grid-template-columns: 1fr; }
  .hero__visual { display: none; }

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

  .about__photo-frame {
    max-width: 260px;
    margin-inline: auto;
  }

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

  .timeline__period {
    margin-left: 0;
    width: 100%;
  }
}

/* Mobile */
@media (max-width: 640px) {
  :root {
    --section-gap: clamp(3.5rem, 8vw, 5rem);
  }

  .nav__links {
    position: fixed;
    top: var(--nav-h);
    left: 0;
    right: 0;
    background: rgba(14, 24, 15, 0.97);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    flex-direction: column;
    gap: 0;
    padding: var(--sp-4) 0 var(--sp-6);
    border-bottom: 1px solid var(--clr-border);

    /* Hide off-screen by default */
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--t-base) var(--ease),
                opacity var(--t-base) var(--ease);
  }

  .nav__links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }

  .nav__links li {
    width: 100%;
    text-align: center;
  }

  .nav__link {
    display: block;
    padding: var(--sp-4) var(--container-pad);
    font-size: var(--fs-md);
  }

  .nav__link::after { display: none; }

  .nav__link--cta {
    margin: var(--sp-3) auto 0;
    width: max-content;
    display: inline-block;
  }

  .nav__hamburger { display: flex; }

  /* Hero tweaks */
  .hero__content { grid-template-columns: 1fr; }
  .hero__visual { display: none; }
  .hero__cta { flex-direction: column; width: 100%; }
  .hero__cta .btn { width: 100%; justify-content: center; }

  /* Projects: single column */
  .projects__grid { grid-template-columns: 1fr; }
  .project-card--featured { grid-template-columns: 1fr; gap: 0; }

  /* Skills: tighter grid */
  .skills__grid {
    grid-template-columns: repeat(3, 1fr);
  }

  /* Timeline: reset left padding, hide line on very small screens */
  .timeline::before { left: 0; }
  .timeline__marker { left: -7px; }
  .timeline__item { padding-left: var(--sp-6); }

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

/* ─── 17. SCROLLBAR STYLING ───────────────────────────────────────────────── */
::-webkit-scrollbar              { width: 6px; }
::-webkit-scrollbar-track        { background: var(--clr-bg); }
::-webkit-scrollbar-thumb        { background: var(--clr-border-2); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover  { background: var(--clr-accent); }