/* ============================================
   PORTAFOLIO — NEHUEN GALLITELLI
   Design System & Styles
   ============================================ */

/* ---------- Google Fonts ---------- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;600;700&display=swap');

/* ---------- CSS Custom Properties ---------- */
:root {
  /* Colors */
  --c-primary: #00d4aa;
  --c-primary-rgb: 0, 212, 170;
  --c-secondary: #0ea5e9;
  --c-secondary-rgb: 14, 165, 233;
  --c-accent: #a855f7;
  --c-accent-rgb: 168, 85, 247;

  --c-bg-deep: #06060b;
  --c-bg: #0a0a0f;
  --c-bg-card: #111118;
  --c-bg-card-hover: #16161f;
  --c-bg-elevated: #1a1a24;

  --c-glass: rgba(255, 255, 255, 0.04);
  --c-glass-border: rgba(255, 255, 255, 0.08);
  --c-glass-hover: rgba(255, 255, 255, 0.07);

  --c-text: #e2e8f0;
  --c-text-muted: #94a3b8;
  --c-text-dim: #64748b;

  /* Gradients */
  --g-primary: linear-gradient(135deg, var(--c-primary), var(--c-secondary));
  --g-accent: linear-gradient(135deg, var(--c-secondary), var(--c-accent));
  --g-hero: radial-gradient(ellipse 80% 60% at 50% 0%,
      rgba(var(--c-primary-rgb), 0.12) 0%,
      rgba(var(--c-secondary-rgb), 0.06) 40%,
      transparent 70%);

  /* Typography */
  --ff-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --ff-mono: 'JetBrains Mono', 'Fira Code', monospace;

  --fs-xs: 0.75rem;
  --fs-sm: 0.875rem;
  --fs-base: 1rem;
  --fs-lg: 1.125rem;
  --fs-xl: 1.25rem;
  --fs-2xl: 1.5rem;
  --fs-3xl: 1.875rem;
  --fs-4xl: 2.25rem;
  --fs-5xl: 3rem;
  --fs-6xl: 3.75rem;
  --fs-hero: clamp(2.5rem, 6vw, 5rem);
  --fs-section: clamp(1.75rem, 4vw, 2.75rem);

  /* Spacing */
  --s-xs: 0.25rem;
  --s-sm: 0.5rem;
  --s-md: 1rem;
  --s-lg: 1.5rem;
  --s-xl: 2rem;
  --s-2xl: 3rem;
  --s-3xl: 4rem;
  --s-4xl: 6rem;
  --s-section: clamp(4rem, 10vh, 8rem);

  /* Border Radius */
  --r-sm: 0.375rem;
  --r-md: 0.75rem;
  --r-lg: 1rem;
  --r-xl: 1.5rem;
  --r-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 30px rgba(var(--c-primary-rgb), 0.15);
  --shadow-glow-strong: 0 0 60px rgba(var(--c-primary-rgb), 0.25);

  /* Transitions */
  --t-fast: 0.15s ease;
  --t-base: 0.3s ease;
  --t-slow: 0.5s ease;
  --t-spring: 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);

  /* Layout */
  --max-w: 1200px;
  --nav-h: 72px;
}

/* ---------- Reset & Base ---------- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-h);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

body {
  font-family: var(--ff-body);
  font-size: var(--fs-base);
  line-height: 1.7;
  color: var(--c-text);
  background-color: var(--c-bg);
  overflow-x: hidden;
}

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

ul,
ol {
  list-style: none;
}

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

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

::selection {
  background: rgba(var(--c-primary-rgb), 0.3);
  color: var(--c-text);
}

::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--c-bg-deep);
}

::-webkit-scrollbar-thumb {
  background: rgba(var(--c-primary-rgb), 0.3);
  border-radius: var(--r-full);
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(var(--c-primary-rgb), 0.5);
}

/* ---------- Utility Classes ---------- */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--s-lg);
}

.section {
  padding: var(--s-section) 0;
  position: relative;
  overflow-x: clip;
}

.section__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--s-sm);
  font-family: var(--ff-mono);
  font-size: var(--fs-xs);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--c-primary);
  margin-bottom: var(--s-md);
  padding: var(--s-xs) var(--s-md);
  background: rgba(var(--c-primary-rgb), 0.08);
  border: 1px solid rgba(var(--c-primary-rgb), 0.15);
  border-radius: var(--r-full);
}

.section__title {
  font-size: var(--fs-section);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: var(--s-md);
}

.section__subtitle {
  font-size: var(--fs-lg);
  color: var(--c-text-muted);
  max-width: 600px;
  line-height: 1.6;
}

.gradient-text {
  background: var(--g-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* ---------- Glass Morphism ---------- */
.glass {
  background: var(--c-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--c-glass-border);
}

.glass--strong {
  background: rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(30px);
  -webkit-backdrop-filter: blur(30px);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

/* ---------- Animations ---------- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(40px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-40px);
  }

  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(40px);
  }

  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes float {

  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-12px);
  }
}

@keyframes pulse-glow {

  0%,
  100% {
    box-shadow: 0 0 20px rgba(var(--c-primary-rgb), 0.1);
  }

  50% {
    box-shadow: 0 0 40px rgba(var(--c-primary-rgb), 0.25);
  }
}

@keyframes typing-cursor {

  0%,
  100% {
    border-color: var(--c-primary);
  }

  50% {
    border-color: transparent;
  }
}

@keyframes gradient-shift {
  0% {
    background-position: 0% 50%;
  }

  50% {
    background-position: 100% 50%;
  }

  100% {
    background-position: 0% 50%;
  }
}

@keyframes orbit {
  from {
    transform: rotate(0deg) translateX(140px) rotate(0deg);
  }

  to {
    transform: rotate(360deg) translateX(140px) rotate(-360deg);
  }
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

.spin {
  animation: spin 0.8s linear infinite;
}


.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* ---------- NAVBAR ---------- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-h);
  z-index: 1000;
  transition: all var(--t-base);
}

.navbar.scrolled {
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--c-glass-border);
  box-shadow: var(--shadow-md);
}

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

.navbar__logo {
  font-family: var(--ff-mono);
  font-size: var(--fs-xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  transition: var(--t-base);
}

.navbar__logo span {
  color: var(--c-primary);
}

.navbar__logo:hover {
  text-shadow: 0 0 20px rgba(var(--c-primary-rgb), 0.4);
}

.navbar__links {
  display: flex;
  align-items: center;
  gap: var(--s-xl);
}

.navbar__link {
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--c-text-muted);
  position: relative;
  padding: var(--s-xs) 0;
  transition: color var(--t-base);
}

.navbar__link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--g-primary);
  border-radius: var(--r-full);
  transition: width var(--t-base);
}

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

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

.navbar__cta {
  font-size: var(--fs-sm);
  font-weight: 600;
  padding: 0.55rem 1.4rem;
  border-radius: var(--r-full);
  background: var(--g-primary);
  color: var(--c-bg);
  transition: all var(--t-base);
}

.navbar__cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(var(--c-primary-rgb), 0.35);
}

/* Mobile menu button */
.navbar__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  height: 20px;
  cursor: pointer;
  z-index: 1001;
}

.navbar__toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--c-text);
  border-radius: var(--r-full);
  transition: all var(--t-base);
}

.navbar__toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.navbar__toggle.active span:nth-child(2) {
  opacity: 0;
}

.navbar__toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile menu */
.navbar__mobile-menu {
  display: none;
  position: fixed;
  top: 0;
  right: -100%;
  width: 280px;
  height: 100vh;
  background: rgba(10, 10, 15, 0.97);
  backdrop-filter: blur(30px);
  -webkit-backdrop-filter: blur(30px);
  border-left: 1px solid var(--c-glass-border);
  padding: calc(var(--nav-h) + var(--s-xl)) var(--s-xl) var(--s-xl);
  flex-direction: column;
  gap: var(--s-lg);
  transition: right var(--t-slow);
  z-index: 999;
}

.navbar__mobile-menu.open {
  right: 0;
}

.navbar__mobile-link {
  font-size: var(--fs-lg);
  font-weight: 500;
  color: var(--c-text-muted);
  padding: var(--s-sm) 0;
  border-bottom: 1px solid var(--c-glass-border);
  transition: color var(--t-base), padding-left var(--t-base);
}

.navbar__mobile-link:hover {
  color: var(--c-primary);
  padding-left: var(--s-sm);
}

.mobile-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: rgba(0, 0, 0, 0.5);
  z-index: 998;
  opacity: 0;
  transition: opacity var(--t-base);
}

.mobile-overlay.active {
  opacity: 1;
}

/* ---------- HERO ---------- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow-x: clip;
  padding-top: var(--nav-h);
}

.hero__canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.hero__glow {
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.15;
  pointer-events: none;
  z-index: 0;
}

.hero__glow--1 {
  top: -100px;
  right: -100px;
  background: var(--c-primary);
}

.hero__glow--2 {
  bottom: -200px;
  left: -200px;
  background: var(--c-secondary);
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 800px;
}

.hero__greeting {
  font-family: var(--ff-mono);
  font-size: var(--fs-sm);
  color: var(--c-primary);
  margin-bottom: var(--s-md);
  letter-spacing: 0.1em;
  animation: fadeInUp 0.6s ease forwards;
}

.hero__name {
  font-size: var(--fs-hero);
  font-weight: 900;
  line-height: 1.05;
  margin-bottom: var(--s-md);
  animation: fadeInUp 0.6s ease 0.15s forwards;
  opacity: 0;
}

.hero__role-wrapper {
  display: flex;
  align-items: center;
  gap: var(--s-sm);
  margin-bottom: var(--s-lg);
  animation: fadeInUp 0.6s ease 0.3s forwards;
  opacity: 0;
}

.hero__role-label {
  font-family: var(--ff-mono);
  font-size: clamp(1rem, 2.5vw, 1.5rem);
  font-weight: 500;
  color: var(--c-text-muted);
}

.hero__role-typing {
  font-family: var(--ff-mono);
  font-size: clamp(1rem, 2.5vw, 1.5rem);
  font-weight: 600;
  color: var(--c-primary);
  border-right: 2px solid var(--c-primary);
  padding-right: 4px;
  animation: typing-cursor 1s infinite;
}

.hero__description {
  font-size: var(--fs-lg);
  color: var(--c-text-muted);
  max-width: 580px;
  line-height: 1.8;
  margin-bottom: var(--s-2xl);
  animation: fadeInUp 0.6s ease 0.45s forwards;
  opacity: 0;
}

.hero__actions {
  display: flex;
  align-items: center;
  gap: var(--s-md);
  flex-wrap: wrap;
  animation: fadeInUp 0.6s ease 0.6s forwards;
  opacity: 0;
}

.hero__status {
  display: flex;
  align-items: center;
  gap: var(--s-sm);
  margin-top: var(--s-2xl);
  font-family: var(--ff-mono);
  font-size: var(--fs-xs);
  color: var(--c-text-dim);
  animation: fadeInUp 0.6s ease 0.75s forwards;
  opacity: 0;
}

.hero__status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--c-primary);
  animation: pulse-glow 2s infinite;
  box-shadow: 0 0 8px rgba(var(--c-primary-rgb), 0.5);
}

/* Scroll indicator */
.hero__scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--s-sm);
  color: var(--c-text-dim);
  font-size: var(--fs-xs);
  font-family: var(--ff-mono);
  animation: float 3s ease-in-out infinite;
  z-index: 1;
}

.hero__scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--c-primary), transparent);
}

/* ---------- BUTTONS ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--s-sm);
  padding: 0.75rem 1.75rem;
  border-radius: var(--r-full);
  font-weight: 600;
  font-size: var(--fs-sm);
  transition: all var(--t-base);
  position: relative;
  overflow: hidden;
}

.btn--primary {
  background: var(--g-primary);
  color: var(--c-bg);
}

.btn--primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(var(--c-primary-rgb), 0.35);
}

.btn--secondary {
  background: transparent;
  color: var(--c-text);
  border: 1px solid var(--c-glass-border);
}

.btn--secondary:hover {
  border-color: var(--c-primary);
  color: var(--c-primary);
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(var(--c-primary-rgb), 0.12);
}

.btn--sm {
  padding: 0.5rem 1.2rem;
  font-size: var(--fs-xs);
}

.btn__icon {
  width: 18px;
  height: 18px;
}

/* ---------- ABOUT ---------- */
.about__grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: var(--s-3xl);
  align-items: center;
}

/* Terminal Card */
.about__terminal-wrapper {
  position: relative;
}

.about__terminal {
  border-radius: var(--r-xl);
  overflow: hidden;
  max-width: 420px;
  margin: 0 auto;
  transition: all var(--t-base);
}

.about__terminal:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}

.about__terminal-header {
  display: flex;
  align-items: center;
  gap: var(--s-md);
  padding: 0.85rem 1.2rem;
  background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid var(--c-glass-border);
}

.about__terminal-dots {
  display: flex;
  gap: 6px;
}

.about__dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.about__dot--red {
  background: #ff5f57;
}

.about__dot--yellow {
  background: #febc2e;
}

.about__dot--green {
  background: #28c840;
}

.about__terminal-title {
  font-family: var(--ff-mono);
  font-size: var(--fs-xs);
  color: var(--c-text-dim);
}

.about__terminal-body {
  padding: 1.5rem;
}

.about__code {
  font-family: var(--ff-mono);
  font-size: 0.85rem;
  line-height: 1.9;
  color: var(--c-text-muted);
  white-space: pre;
  overflow-x: auto;
}

.code-bracket {
  color: var(--c-text-dim);
}

.code-key {
  color: var(--c-secondary);
}

.code-string {
  color: var(--c-primary);
}

.code-bool {
  color: #febc2e;
}

.about__info h3 {
  font-size: var(--fs-2xl);
  font-weight: 700;
  margin-bottom: var(--s-md);
}

.about__text {
  color: var(--c-text-muted);
  line-height: 1.8;
  margin-bottom: var(--s-xl);
}

/* Highlight Chips */
.about__highlights {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-sm);
}

.about__highlight {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 1rem;
  border-radius: var(--r-full);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.06);
  font-size: var(--fs-sm);
  color: var(--c-text-muted);
  transition: all var(--t-base);
}

.about__highlight svg {
  color: var(--c-primary);
  flex-shrink: 0;
}

.about__highlight:hover {
  background: rgba(var(--c-primary-rgb), 0.06);
  border-color: rgba(var(--c-primary-rgb), 0.15);
  color: var(--c-text);
  transform: translateY(-2px);
}

.about__highlight--active {
  border-color: rgba(var(--c-primary-rgb), 0.25);
  color: var(--c-primary);
}

.about__highlight-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--c-primary);
  box-shadow: 0 0 8px rgba(var(--c-primary-rgb), 0.5);
  animation: pulse-glow 2s infinite;
}

/* ---------- SKILLS ---------- */
.skills__categories {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--s-lg);
}

.skills__category {
  padding: var(--s-xl);
  border-radius: var(--r-xl);
  transition: all var(--t-base);
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: var(--s-sm) var(--s-md);
}

.skills__category:hover {
  background: var(--c-glass-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}

.skills__category-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--r-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--fs-2xl);
}

.skills__category-icon--frontend {
  background: rgba(var(--c-primary-rgb), 0.1);
  color: var(--c-primary);
}

.skills__category-icon--backend {
  background: rgba(var(--c-secondary-rgb), 0.1);
  color: var(--c-secondary);
}

.skills__category-icon--database {
  background: rgba(var(--c-accent-rgb), 0.1);
  color: var(--c-accent);
}

.skills__category-icon--tools {
  background: rgba(255, 185, 0, 0.1);
  color: #ffb900;
}

.skills__category-title {
  font-size: var(--fs-lg);
  font-weight: 700;
}

.skills__list {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-sm);
}

.skills__item {
  display: inline-flex;
  align-items: center;
  gap: var(--s-sm);
  padding: 0.4rem 0.9rem;
  border-radius: var(--r-full);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.06);
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--c-text-muted);
  transition: all var(--t-base);
}

.skills__item:hover {
  border-color: var(--c-primary);
  color: var(--c-primary);
  background: rgba(var(--c-primary-rgb), 0.06);
  transform: translateY(-2px);
}

.skills__item i {
  font-size: var(--fs-lg);
}

/* ---------- PROJECTS ---------- */
.projects__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: var(--s-xl);
}

.project-card {
  border-radius: var(--r-xl);
  overflow: hidden;
  transition: all var(--t-slow);
  position: relative;
  display: flex;
  flex-direction: column;
}

.project-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-glow-strong);
  border-color: rgba(var(--c-primary-rgb), 0.2);
}

.project-card__image {
  position: relative;
  height: 200px;
  overflow: hidden;
}

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

.project-card:hover .project-card__image img {
  transform: scale(1.05);
}

.project-card__image-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 40%, rgba(10, 10, 15, 0.9));
}

.project-card__number {
  position: absolute;
  top: var(--s-md);
  left: var(--s-md);
  font-family: var(--ff-mono);
  font-size: var(--fs-xs);
  font-weight: 700;
  color: var(--c-primary);
  padding: 0.25rem 0.75rem;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(10px);
  border-radius: var(--r-full);
  border: 1px solid rgba(var(--c-primary-rgb), 0.2);
}

.project-card__body {
  padding: var(--s-xl);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.project-card__title {
  font-size: var(--fs-xl);
  font-weight: 700;
  margin-bottom: var(--s-sm);
  transition: color var(--t-base);
}

.project-card:hover .project-card__title {
  color: var(--c-primary);
}

.project-card__description {
  font-size: var(--fs-sm);
  color: var(--c-text-muted);
  line-height: 1.7;
  margin-bottom: var(--s-lg);
  flex: 1;
}

.project-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-xs);
  margin-bottom: var(--s-lg);
}

.project-card__tag {
  font-family: var(--ff-mono);
  font-size: 0.7rem;
  font-weight: 500;
  padding: 0.2rem 0.6rem;
  border-radius: var(--r-sm);
  background: rgba(var(--c-primary-rgb), 0.08);
  color: var(--c-primary);
  border: 1px solid rgba(var(--c-primary-rgb), 0.12);
}

.project-card__links {
  display: flex;
  gap: var(--s-sm);
  margin-top: auto;
}

.project-card__link {
  display: inline-flex;
  align-items: center;
  gap: var(--s-xs);
  font-size: var(--fs-xs);
  font-weight: 600;
  padding: 0.4rem 1rem;
  border-radius: var(--r-full);
  border: 1px solid var(--c-glass-border);
  transition: all var(--t-base);
}

.project-card__link:hover {
  border-color: var(--c-primary);
  color: var(--c-primary);
  background: rgba(var(--c-primary-rgb), 0.06);
}

.project-card__link svg {
  width: 14px;
  height: 14px;
}

/* ---------- EDUCATION ---------- */
.education__timeline {
  position: relative;
  padding-left: var(--s-3xl);
}

.education__timeline::before {
  content: '';
  position: absolute;
  left: 7px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(to bottom, var(--c-primary), var(--c-secondary), transparent);
}

.education__item {
  position: relative;
  margin-bottom: var(--s-2xl);
}

.education__item:last-child {
  margin-bottom: 0;
}

.education__dot {
  position: absolute;
  left: calc(-1 * var(--s-3xl) + 2px);
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--c-primary);
  box-shadow: 0 0 12px rgba(var(--c-primary-rgb), 0.4),
    0 0 0 4px rgba(var(--c-primary-rgb), 0.1);
}

.education__item:nth-child(2) .education__dot {
  background: var(--c-secondary);
  box-shadow: 0 0 12px rgba(var(--c-secondary-rgb), 0.4),
    0 0 0 4px rgba(var(--c-secondary-rgb), 0.1);
}

.education__card {
  padding: var(--s-xl);
  border-radius: var(--r-xl);
  transition: all var(--t-base);
}

.education__card:hover {
  background: var(--c-glass-hover);
  transform: translateX(8px);
}

.education__date {
  font-family: var(--ff-mono);
  font-size: var(--fs-xs);
  color: var(--c-primary);
  margin-bottom: var(--s-sm);
  letter-spacing: 0.05em;
}

.education__degree {
  font-size: var(--fs-xl);
  font-weight: 700;
  margin-bottom: var(--s-xs);
}

.education__institution {
  font-size: var(--fs-sm);
  color: var(--c-text-muted);
}

.education__detail {
  font-size: var(--fs-sm);
  color: var(--c-text-dim);
  margin-top: var(--s-sm);
  font-style: italic;
}

/* ---------- CONTACT ---------- */
.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--s-3xl);
  align-items: start;
}

.contact__info {
  display: flex;
  flex-direction: column;
  gap: var(--s-xl);
}

.contact__info-text {
  font-size: var(--fs-lg);
  color: var(--c-text-muted);
  line-height: 1.8;
}

.contact__links {
  display: flex;
  flex-direction: column;
  gap: var(--s-md);
}

.contact__link-item {
  display: flex;
  align-items: center;
  gap: var(--s-md);
  padding: var(--s-md) var(--s-lg);
  border-radius: var(--r-lg);
  transition: all var(--t-base);
}

.contact__link-item:hover {
  background: var(--c-glass-hover);
  transform: translateX(8px);
}

.contact__link-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--r-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--fs-xl);
  flex-shrink: 0;
}

.contact__link-icon--email {
  background: rgba(var(--c-primary-rgb), 0.1);
  color: var(--c-primary);
}

.contact__link-icon--linkedin {
  background: rgba(var(--c-secondary-rgb), 0.1);
  color: var(--c-secondary);
}

.contact__link-icon--github {
  background: rgba(var(--c-accent-rgb), 0.1);
  color: var(--c-accent);
}

.contact__link-icon--phone {
  background: rgba(255, 185, 0, 0.1);
  color: #ffb900;
}

.contact__link-text {
  display: flex;
  flex-direction: column;
}

.contact__link-label {
  font-size: var(--fs-xs);
  color: var(--c-text-dim);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.contact__link-value {
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--c-text);
}

/* Contact Form */
.contact__form {
  padding: var(--s-xl);
  border-radius: var(--r-xl);
}

.form__group {
  margin-bottom: var(--s-lg);
}

.form__label {
  display: block;
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--c-text-muted);
  margin-bottom: var(--s-sm);
}

.form__input,
.form__textarea {
  width: 100%;
  padding: 0.85rem 1.2rem;
  border-radius: var(--r-md);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--c-text);
  font-family: var(--ff-body);
  font-size: var(--fs-sm);
  transition: all var(--t-base);
  outline: none;
}

.form__input:focus,
.form__textarea:focus {
  border-color: var(--c-primary);
  box-shadow: 0 0 0 3px rgba(var(--c-primary-rgb), 0.1);
  background: rgba(255, 255, 255, 0.05);
}

.form__input::placeholder,
.form__textarea::placeholder {
  color: var(--c-text-dim);
}

.form__textarea {
  resize: vertical;
  min-height: 140px;
}

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

/* ---------- FOOTER ---------- */
.footer {
  padding: var(--s-2xl) 0;
  border-top: 1px solid var(--c-glass-border);
}

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

.footer__text {
  font-size: var(--fs-sm);
  color: var(--c-text-dim);
}

.footer__text span {
  color: var(--c-primary);
}

.footer__socials {
  display: flex;
  gap: var(--s-md);
}

.footer__social {
  width: 40px;
  height: 40px;
  border-radius: var(--r-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--fs-lg);
  background: var(--c-glass);
  border: 1px solid var(--c-glass-border);
  color: var(--c-text-muted);
  transition: all var(--t-base);
}

.footer__social:hover {
  color: var(--c-primary);
  border-color: var(--c-primary);
  transform: translateY(-3px);
  box-shadow: 0 4px 15px rgba(var(--c-primary-rgb), 0.2);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

/* Short laptop screens (e.g. ThinkPad ~768px height) */
@media (max-height: 800px) {
  .hero {
    padding-top: calc(var(--nav-h) - 8px);
  }

  .hero__greeting {
    margin-bottom: var(--s-sm);
  }

  .hero__name {
    font-size: clamp(2rem, 5vw, 3.5rem);
    margin-bottom: var(--s-sm);
  }

  .hero__role-wrapper {
    margin-bottom: var(--s-sm);
  }

  .hero__description {
    font-size: var(--fs-base);
    line-height: 1.6;
    margin-bottom: var(--s-lg);
  }

  .hero__status {
    margin-top: var(--s-lg);
  }

  .hero__scroll {
    bottom: 1rem;
  }

  .hero__scroll-line {
    height: 24px;
  }
}

@media (max-width: 1024px) {
  .about__grid {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .about__terminal {
    max-width: 380px;
  }

  .about__highlights {
    justify-content: center;
  }

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

  .contact__info-text {
    text-align: center;
  }
}

@media (max-width: 768px) {
  .navbar__links {
    display: none;
  }

  .navbar__toggle {
    display: flex;
  }

  .navbar__mobile-menu {
    display: flex;
  }

  .about__terminal {
    text-align: left;
  }

  .about__grid {
    text-align: left;
  }

  .hero__content {
    text-align: center;
    margin: 0 auto;
  }

  .hero__actions {
    justify-content: center;
  }

  .hero__status {
    justify-content: center;
  }

  .hero__description {
    margin-left: auto;
    margin-right: auto;
  }

  .hero__scroll {
    display: none;
  }

  .about__code {
    font-size: 0.75rem;
  }

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

  .section__subtitle {
    margin-left: auto;
    margin-right: auto;
  }

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

@media (max-width: 480px) {
  :root {
    --s-lg: 1rem;
  }

  .container {
    padding: 0 var(--s-md);
  }

  .hero__name {
    font-size: 2.2rem;
  }

  .hero__actions {
    flex-direction: column;
    width: 100%;
  }

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

  .about__highlights {
    flex-direction: column;
    align-items: stretch;
  }

  .education__timeline {
    padding-left: var(--s-2xl);
  }

  .education__dot {
    left: calc(-1 * var(--s-2xl) + 2px);
  }

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