:root {
  /* Typography */
  --geist-sans: "Geist", "Arial", "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", sans-serif;
  --geist-mono: "Geist Mono", "ui-monospace", "SFMono-Regular", "Roboto Mono", "Menlo", "Monaco", "Liberation Mono", "DejaVu Sans Mono", "Courier New", monospace;

  /* Colors */
  --color-black: #171717;
  --color-white: #ffffff;
  --color-true-black: #000000;

  /* Grays */
  --color-gray-900: #171717;
  --color-gray-600: #4d4d4d;
  --color-gray-500: #666666;
  --color-gray-400: #808080;
  --color-gray-100: #ebebeb;
  --color-gray-50: #fafafa;

  /* Workflow Accents */
  --color-ship: #ff5b4f;
  --color-preview: #de1d8d;
  --color-develop: #0a72ef;

  /* Interactive */
  --color-link: #0072f5;
  --color-focus: hsla(212, 100%, 48%, 1);
  --color-backdrop: hsla(0, 0%, 98%, 0.8);
  --color-badge-bg: #ebf5ff;
  --color-badge-text: #0068d6;

  /* Shadows as Borders */
  --shadow-border: 0px 0px 0px 1px rgba(0, 0, 0, 0.08);
  --shadow-ring-light: 0px 0px 0px 1px rgb(235, 235, 235);

  /* Card Shadows */
  --shadow-card-subtle: 0px 0px 0px 1px rgba(0, 0, 0, 0.08), 0px 2px 2px rgba(0, 0, 0, 0.04);
  /* The inset #fafafa gives it that Vercel subtle inner glow */
  --shadow-card-full: 0px 0px 0px 1px rgba(0, 0, 0, 0.08), 0px 2px 2px rgba(0, 0, 0, 0.04), 0px 8px 8px -8px rgba(0, 0, 0, 0.04), inset 0px 0px 0px 1px var(--color-gray-50);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--geist-sans);
  background-color: var(--color-white);
  color: var(--color-gray-900);
  font-size: 16px;
  line-height: 1.5;
  font-variant-ligatures: common-ligatures;
  /* enable "liga" */
}

a {
  text-decoration: none;
  color: inherit;
  transition: color 0.2s ease;
}

/* Typography Classes */
.t-hero {
  font-size: 4rem;
  /* 64px */
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -2.4px;
  /* Aggressive compression */
  color: var(--color-black);
}

.t-heading {
  font-size: 2.5rem;
  /* 40px */
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -2.4px;
  color: var(--color-black);
}

.t-subheading {
  font-size: 2.25rem;
  /* 36px */
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -1.28px;
  color: var(--color-gray-900);
}

.t-card-title {
  font-size: 1.5rem;
  /* 24px */
  font-weight: 600;
  line-height: 1.33;
  letter-spacing: -0.96px;
}

.t-body-large {
  font-size: 1.25rem;
  /* 20px */
  font-weight: 400;
  line-height: 1.8;
  color: var(--color-gray-600);
}

.t-body {
  font-size: 1.125rem;
  /* 18px */
  font-weight: 400;
  line-height: 1.56;
}

.t-body-small {
  font-size: 1rem;
  /* 16px */
  font-weight: 400;
  line-height: 1.5;
  color: var(--color-gray-600);
}

.t-label {
  font-size: 0.875rem;
  /* 14px */
  font-weight: 500;
  line-height: 1.43;
}

.t-mono {
  font-family: var(--geist-mono);
  font-size: 0.875rem;
  font-variant-ligatures: common-ligatures;
}

/* Focus Utility */
:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

/* Gradients */
.text-gradient {
  background: linear-gradient(to right, #007cf0, #00dfd8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  color: transparent;
}

/* Navigation */
.nav-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(8px);
  box-shadow: var(--shadow-border);
  height: 64px;
  display: flex;
  align-items: center;
  padding: 0 32px;
}

.nav-container {
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo {
  font-weight: 600;
  font-size: 1.125rem;
  letter-spacing: -0.5px;
}

.nav-links {
  display: flex;
  gap: 24px;
}

.nav-link {
  font-size: 0.875rem;
  /* 14px */
  font-weight: 500;
  color: var(--color-gray-600);
}

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

/* Buttons */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-black);
  color: var(--color-white);
  font-size: 0.875rem;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: 6px;
  transition: background-color 0.2s ease;
  cursor: pointer;
  border: none;
}

.btn-primary:hover {
  background-color: #333;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-white);
  color: var(--color-black);
  font-size: 0.875rem;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: 6px;
  box-shadow: var(--shadow-ring-light);
  transition: background-color 0.2s ease;
  cursor: pointer;
  border: none;
}

.btn-secondary:hover {
  background-color: var(--color-gray-50);
}

.badge {
  background-color: var(--color-badge-bg);
  color: var(--color-badge-text);
  padding: 4px 10px;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 500;
  display: inline-block;
}

/* Sections */
.section-container {
  max-width: 1200px;
  margin: 0 auto;
  min-height: 100dvh;
  padding: 64px 32px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
}

.hero-section {
  min-height: calc(100dvh - 65px);
  padding: 0 32px;
  gap: 24px;
}

.hero-actions {
  display: flex;
  gap: 12px;
  margin-top: 16px;
}

/* Metrics Section */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-top: 48px;
  width: 100%;
}

.metric-card {
  padding: 32px;
  border-radius: 8px;
  text-align: center;
  transition: transform 0.3s ease, background-color 0.3s ease;
}

/* Subtle hover effect */
.metric-card:hover {
  transform: translateY(-4px);
  background-color: var(--color-gray-50);
}

.metric-value {
  color: var(--color-black);
  margin-bottom: 8px;
}

.metric-label {
  color: var(--color-gray-500);
}

/* Scroll Animation Classes */
.scroll-animate {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.scroll-animate.animate-in {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger animations for metric cards */
.metric-card:nth-child(1).scroll-animate {
  transition-delay: 0.1s, 0.1s;
}

.metric-card:nth-child(2).scroll-animate {
  transition-delay: 0.2s, 0.2s;
}

.metric-card:nth-child(3).scroll-animate {
  transition-delay: 0.3s, 0.3s;
}

.metric-card:nth-child(4).scroll-animate {
  transition-delay: 0.4s, 0.4s;
}

.metric-card:nth-child(5).scroll-animate {
  transition-delay: 0.5s, 0.5s;
}

.metric-card:nth-child(6).scroll-animate {
  transition-delay: 0.6s, 0.6s;
}

/* Cards (Vercel Style) */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 24px;
  margin-top: 48px;
  width: 100%;
  text-align: left;
}

/* Testimonials */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.testimonial-card {
  padding: 40px;
  background-color: var(--color-gray-50);
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  text-align: left;
}

@media (max-width: 768px) {
  .testimonials-grid {
    grid-template-columns: 1fr;
  }
}

.v-card {
  background-color: var(--color-white);
  border-radius: 8px;
  box-shadow: var(--shadow-card-subtle);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
  display: flex;
  flex-direction: column;
  cursor: pointer;
  overflow: hidden;
  height: 100%;
}

.v-card:hover {
  box-shadow: var(--shadow-card-full);
  transform: translateY(-2px);
}

.v-card-img {
  width: 100%;
  height: 250px;
  object-fit: cover;
  border-bottom: 1px solid var(--color-gray-100);
}

.v-card-content {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex-grow: 1;
}

/* Modal */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--color-backdrop);
  backdrop-filter: blur(4px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-content {
  background-color: var(--color-white);
  box-shadow: var(--shadow-card-full);
  border-radius: 12px;
  width: 90%;
  max-width: 700px;
  max-height: 90vh;
  overflow-y: auto;
  padding: 40px;
  position: relative;
  transform: translateY(20px) scale(0.98);
  transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.modal-close {
  position: absolute;
  top: 24px;
  right: 24px;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-gray-500);
  box-shadow: var(--shadow-border);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.2s, color 0.2s;
}

.modal-close:hover {
  background-color: var(--color-gray-100);
  color: var(--color-black);
}

/* Skills section simple divider */
.section-divider {
  border: none;
  height: 1px;
  background-color: var(--color-gray-100);
  width: 100%;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 24px;
  margin-top: 48px;
  width: 100%;
  text-align: left;
}

.skill-card {
  box-shadow: var(--shadow-border);
  border-radius: 8px;
  padding: 24px;
}

.skill-card ul {
  list-style: none;
  margin-top: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.skill-card li {
  color: var(--color-gray-600);
}

/* Experience Section */
.experience-timeline {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.company-group {
  display: flex;
  flex-direction: column;
}

.company-header {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 8px;
}

.company-logo {
  width: 48px;
  height: 48px;
  background-color: var(--color-white);
  border: 1px solid var(--color-gray-100);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-gray-600);
  flex-shrink: 0;
}

.company-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.role-list {
  display: flex;
  flex-direction: column;
  margin-left: 24px;
  border-left: 2px solid var(--color-gray-100);
  padding-top: 16px;
  padding-bottom: 8px;
}

.experience-item {
  position: relative;
  padding-left: 32px;
  padding-bottom: 32px;
  transition: all 0.2s ease;
}

.experience-item:last-child {
  padding-bottom: 0;
}

.role-dot {
  position: absolute;
  left: -7px;
  top: 8px;
  width: 12px;
  height: 12px;
  background-color: var(--color-gray-400);
  border-radius: 50%;
  border: 2px solid var(--color-white);
  transition: background-color 0.2s ease;
}

.experience-item:hover .role-dot {
  background-color: var(--color-black);
}

.role-content {
  display: flex;
  flex-direction: column;
  background-color: transparent;
  border-radius: 8px;
  border: 1px solid transparent;
  padding: 8px 16px;
  margin-left: -16px; /* align with text */
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.experience-item:hover .role-content {
  background-color: var(--color-gray-50);
  border-color: var(--color-gray-100);
}

.experience-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  cursor: pointer;
}

.experience-meta {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.experience-toggle {
  color: var(--color-gray-400);
  transition: transform 0.3s ease, color 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background-color: transparent;
}

.experience-item:hover .experience-toggle {
  color: var(--color-black);
  background-color: var(--color-gray-200);
}

.experience-item.expanded .experience-toggle {
  transform: rotate(180deg);
  color: var(--color-black);
}

.experience-headline {
  margin-top: 12px;
  font-size: 1rem;
  color: var(--color-gray-900);
  line-height: 1.5;
}

.experience-details {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.3s ease;
}

.experience-details-inner {
  overflow: hidden;
}

.experience-item.expanded .experience-details {
  grid-template-rows: 1fr;
}

.skills-used {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-gray-900);
}

/* Footer */
.footer {
  padding: 64px 32px;
  border-top: 1px solid var(--color-gray-100);
  display: flex;
  justify-content: center;
}

.footer-container {
  max-width: 1200px;
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--color-gray-500);
  font-size: 0.875rem;
}

/* Responsive */
@media (max-width: 768px) {
  .t-hero {
    font-size: 2.5rem;
    letter-spacing: -1.5px;
  }

  .t-subheading {
    font-size: 1.75rem;
    letter-spacing: -1px;
  }

  .t-heading {
    font-size: 2rem;
    letter-spacing: -1px;
  }

  .section-container {
    padding: 48px 24px;
  }

  .nav-header {
    height: auto;
    padding: 16px;
  }

  .nav-container {
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 12px 0;
  }

  .nav-logo {
    order: 1;
  }

  .nav-socials {
    order: 2;
  }

  .nav-links {
    order: 3;
    width: 100%;
    justify-content: center;
    flex-wrap: wrap;
    gap: 16px;
  }

  .footer-container {
    flex-direction: column;
    gap: 24px;
    text-align: center;
  }

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

  .hero-actions a {
    width: 100%;
  }

  .section-container {
    min-height: auto;
    padding: 64px 24px;
  }

  .hero-section {
    min-height: calc(100dvh - 65px);
    padding: 0 24px;
  }

  .modal-content {
    padding: 24px;
  }

  .metrics-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
}

@media (max-width: 480px) {
  .metrics-grid {
    grid-template-columns: 1fr;
  }
}