/* ============================================
   PORTFOLIO - Design System & Global Styles
   ============================================ */

:root {
  /* Colors */
  --color-bg: #F9FAFB;
  --color-bg-alt: #FFFFFF;
  --color-surface: #FFFFFF;
  --color-primary: #0F172A;
  --color-primary-soft: #1E293B;
  --color-accent: #2563EB;
  --color-accent-hover: #1D4ED8;
  --color-text: #1F2937;
  --color-text-muted: #6B7280;
  --color-border: #E5E7EB;
  --color-card-bg: #FFFFFF;
  --color-card-border: #E5E7EB;

  /* Typography */
  --font-heading: 'Space Grotesk', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --text-base: 1rem;
  --text-sm: 0.875rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 2rem;
  --text-4xl: 2.5rem;
  --text-5xl: 3.5rem;
  --line-height-tight: 1.25;
  --line-height-body: 1.7;
  --line-height-loose: 1.8;

  /* Spacing */
  --space-4: 0.25rem;
  --space-8: 0.5rem;
  --space-12: 0.75rem;
  --space-16: 1rem;
  --space-20: 1.25rem;
  --space-24: 1.5rem;
  --space-32: 2rem;
  --space-40: 2.5rem;
  --space-48: 3rem;
  --space-64: 4rem;
  --space-80: 5rem;
  --space-96: 6rem;
  --space-120: 7.5rem;

  /* Mobile typography (applied via media query) */
  --text-base-mobile: 1rem;
  --text-sm-mobile: 0.875rem;
  --text-lg-mobile: 1.0625rem;
  --text-xl-mobile: 1.125rem;
  --text-2xl-mobile: 1.375rem;
  --text-3xl-mobile: 1.75rem;
  --text-4xl-mobile: 2rem;

  /* Layout */
  --container-max: 1200px;
  --container-wide: 1440px;
  --content-max-width: 65ch;

  /* Effects */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  --radius: 8px;
  --radius-lg: 12px;
  --transition: 0.2s ease;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 72px;
}

@media (max-width: 768px) {
  html {
    scroll-padding-top: 61px;
  }
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--line-height-body);
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--color-accent-hover);
}

/* ============================================
   SECTION FOCUS (scroll / nav)
   ============================================ */

.focus-section {
  transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.focus-section--dimmed {
  opacity: 0.28;
}

@media (prefers-reduced-motion: reduce) {
  .focus-section,
  .focus-section--dimmed {
    opacity: 1 !important;
    transition: none !important;
  }
}

@media (max-width: 768px) {
  .focus-section--dimmed {
    opacity: 0.35;
  }
}

/* Mobile typography scaling */
@media (max-width: 768px) {
  :root {
    --text-base: var(--text-base-mobile);
    --text-sm: var(--text-sm-mobile);
    --text-lg: var(--text-lg-mobile);
    --text-xl: var(--text-xl-mobile);
    --text-2xl: var(--text-2xl-mobile);
    --text-3xl: var(--text-3xl-mobile);
    --text-4xl: var(--text-4xl-mobile);
  }
  body {
    font-size: 16px;
  }
}

@media (max-width: 600px) {
  :root {
    --space-48: 2rem;
    --space-64: 3rem;
    --space-96: 4rem;
    --space-120: 5rem;
  }
}

/* ============================================
   LAYOUT
   ============================================ */

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-24);
}

.container-wide {
  max-width: var(--container-wide);
}

.section {
  padding: var(--space-96) 0;
}

@media (max-width: 768px) {
  .section {
    padding: var(--space-64) 0;
  }
  .container { padding: 0 var(--space-16); }
}

.section-heading {
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--color-primary);
  margin: 0 0 var(--space-48);
  letter-spacing: -0.02em;
}

@media (max-width: 768px) {
  .section-heading { font-size: var(--text-2xl); margin-bottom: var(--space-32); }
}

/* ============================================
   HEADER & NAV
   ============================================ */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 120;
  background: rgba(249, 250, 251, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}

.nav {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--space-16) var(--space-24);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--text-xl);
  color: var(--color-primary);
  margin-right: auto;
  position: relative;
  z-index: 110;
}

.nav-links {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: var(--space-32);
  margin-left: auto;
}

.nav-links a {
  color: var(--color-text);
  font-weight: 500;
  font-size: var(--text-sm);
}

.nav-links a:hover {
  color: var(--color-accent);
}

.nav-links a.active {
  color: var(--color-accent);
  font-weight: 600;
}

.nav-logo.active {
  color: var(--color-accent);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  min-width: 44px;
  min-height: 44px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  position: relative;
  align-items: center;
  justify-content: center;
  z-index: 110;
}

.nav-toggle span,
.nav-toggle::before,
.nav-toggle::after {
  position: absolute;
  left: 50%;
  margin-left: -10px;
  width: 20px;
  height: 2px;
  background: var(--color-primary);
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.nav-toggle::before,
.nav-toggle::after {
  content: '';
}

.nav-toggle span {
  top: 50%;
  margin-top: -1px;
}

.nav-toggle::before { top: 14px; }
.nav-toggle::after { bottom: 14px; }

/* Toggle morph (hamburger → X) when open */
.nav-toggle[aria-expanded="true"]::before {
  transform: translateY(8px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"]::after {
  transform: translateY(-8px) rotate(-45deg);
}

.nav-toggle[aria-expanded="true"] span {
  opacity: 0;
}

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }
  .nav-links {
    /* Full screen overlay */
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: var(--color-bg-alt);

    /* Layout: vertically centered, right aligned */
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-end;

    /* Spacing */
    padding: var(--space-48) var(--space-24);
    gap: var(--space-32);

    /* Animation states */
    transform: translateX(100%);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition:
      transform 0.4s cubic-bezier(0.4, 0, 0.2, 1),
      opacity 0.3s ease,
      visibility 0s 0.4s;

    z-index: 100; /* below logo/toggle (110), above page */
    box-shadow: none;
    border-bottom: none;
    text-align: right;
  }
  .nav-links li {
    width: 100%;
    text-align: right;
  }
  .nav-links.is-open {
    transform: translateX(0);
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transition:
      transform 0.4s cubic-bezier(0.4, 0, 0.2, 1),
      opacity 0.3s ease,
      visibility 0s;
  }
  .nav-links a {
    display: inline-block;
    font-family: var(--font-heading);
    font-size: var(--text-2xl);
    font-weight: 600;
    color: var(--color-primary);
    padding: var(--space-8) 0;
    width: 100%;
    text-align: right;
    min-height: 48px;
    line-height: 1.2;
  }

}

/* ============================================
   HERO
   ============================================ */

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-120) var(--space-24) var(--space-96);
  background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-alt) 100%);
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--space-64);
  align-items: center;
  max-width: 1100px;
  width: 100%;
}

.hero-text {
  text-align: left;
}

.hero-name {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 6vw, var(--text-5xl));
  font-weight: 700;
  color: var(--color-primary);
  margin: 0 0 var(--space-24);
  letter-spacing: -0.03em;
  line-height: var(--line-height-tight);
}

.hero-tagline {
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--color-primary-soft);
  margin: 0 0 var(--space-16);
}

.hero-subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  margin: 0 0 var(--space-48);
  max-width: 520px;
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-16);
}

.hero-photo-wrap {
  position: relative;
  flex-shrink: 0;
  background: var(--color-bg);
  border-radius: 14px;
  overflow: hidden;
}

/* Aggressive fade: eliminate all visible white/black space at bottom */
.hero-photo-wrap::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 58%;
  background: linear-gradient(to top, var(--color-bg) 0%, transparent 45%);
  border-radius: 0 0 14px 14px;
  pointer-events: none;
}

.hero-photo {
  width: 100%;
  max-width: 320px;
  height: auto;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  border-radius: 14px;
  box-shadow: 0 20px 40px rgba(15, 23, 42, 0.15), 0 8px 16px rgba(15, 23, 42, 0.08);
  border: 1px solid var(--color-border);
  display: block;
}

@media (max-width: 768px) {
  .hero {
    padding: var(--space-96) var(--space-24) var(--space-64);
  }
  .hero-inner {
    grid-template-columns: 1fr;
    text-align: center;
    gap: var(--space-48);
  }
  .hero-text { text-align: center; }
  .hero-subtitle { margin-left: auto; margin-right: auto; }
  .hero-ctas {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    margin: 0 auto;
  }
  .hero-photo-wrap { order: -1; margin: 0 auto; }
  .hero-photo { max-width: 280px; }
}

@media (max-width: 480px) {
  .hero {
    min-height: auto;
    padding: var(--space-96) var(--space-16) var(--space-64);
  }
  .hero-name {
    font-size: 2rem;
  }
  .hero-tagline {
    font-size: 1rem;
    line-height: 1.5;
  }
  .hero-subtitle {
    font-size: 0.9375rem;
  }
  .hero-ctas {
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 100%;
  }
  .hero-ctas .btn {
    width: 100%;
    max-width: 300px;
    text-align: center;
  }
  .hero-photo-wrap { order: -1; margin: 0 auto; }
  .hero-photo { max-width: 240px; }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-16) var(--space-32);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 600;
  border-radius: var(--radius);
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), background-color var(--transition), color var(--transition);
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: var(--color-accent);
  color: white;
  border: none;
}

.btn-primary:hover {
  background: var(--color-accent-hover);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn-secondary:hover {
  background: var(--color-primary);
  color: white;
  box-shadow: var(--shadow-md);
}

/* ============================================
   ABOUT
   ============================================ */

.about {
  background: var(--color-bg-alt);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: var(--space-64);
  align-items: start;
}

@media (max-width: 1024px) {
  .about-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .about-grid {
    gap: var(--space-32);
  }
  .about-bio p {
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: var(--space-16);
  }
  .quick-facts {
    padding: var(--space-24);
  }
  .quick-facts-list li {
    font-size: 0.9375rem;
    padding: var(--space-12) 0;
  }
}

.about-bio {
  max-width: var(--content-max-width);
}

.about-bio p {
  margin: 0 0 var(--space-24);
}

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

.quick-facts {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-32);
  position: sticky;
  top: 100px;
}

.quick-facts-title {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-primary);
  margin: 0 0 var(--space-24);
}

.quick-facts-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.quick-facts-list li {
  padding: var(--space-12) 0;
  border-bottom: 1px solid var(--color-border);
  font-size: var(--text-sm);
  color: var(--color-text);
}

.quick-facts-list li:last-child {
  border-bottom: none;
}

.fact-label {
  display: block;
  font-weight: 600;
  color: var(--color-text-muted);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-4);
}

@media (max-width: 1024px) {
  .quick-facts { position: static; }
}

/* ============================================
   SKILLS
   ============================================ */

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-24);
}

@media (max-width: 960px) and (min-width: 769px) {
  .skills-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .skills-grid {
    grid-template-columns: 1fr;
    gap: var(--space-24);
  }
  .skill-card {
    padding: var(--space-24);
  }
  .skill-category {
    font-size: 1.125rem;
  }
  .skill-list {
    font-size: 0.9375rem;
    line-height: 1.8;
  }
}

.skill-card {
  background: var(--color-card-bg);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-lg);
  padding: var(--space-32);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

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

.skill-category {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-primary);
  margin: 0 0 var(--space-16);
}

.skill-list {
  margin: 0;
  font-size: var(--text-sm);
  color: var(--color-text);
  line-height: 1.7;
}

/* ============================================
   PROJECTS (Priority section)
   ============================================

.projects {
  background: var(--color-bg);
}

.projects .container-wide {
  display: flex;
  flex-direction: column;
  gap: 120px;
}

/* Uniform layout: block left, text right for ALL projects */
.project-card {
  position: relative;
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 48px;
  align-items: start;
  background: var(--color-card-bg);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-lg);
  padding: 56px 60px;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.2s ease;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06), 0 2px 8px rgba(0, 0, 0, 0.03);
}

.project-card:nth-child(2) {
  background: #F8FAFC;
  border-color: #E2E8F0;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05), 0 2px 8px rgba(0, 0, 0, 0.02);
}

.project-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.08), 0 12px 24px rgba(0, 0, 0, 0.04);
  border-color: rgba(37, 99, 235, 0.25);
}

.project-card:nth-child(2):hover {
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.07), 0 12px 24px rgba(0, 0, 0, 0.03);
}

.project-number {
  position: absolute;
  top: 28px;
  left: 28px;
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-accent);
  letter-spacing: 0.08em;
}

/* Same layout for all – no alternating grid; block is always first column (left) */

/* Small accent blocks: 300×250 for all three projects */
.project-visual {
  width: 150px;
  height: 125px;
  flex-shrink: 0;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-soft) 100%);
  opacity: 0.9;
}

.project-card:nth-child(1) .project-visual {
  background: linear-gradient(135deg, #0F172A 0%, #334155 100%);
}

.project-card:nth-child(2) .project-visual {
  background: linear-gradient(135deg, #1e3a5f 0%, #2563EB 50%, #3B82F6 100%);
}

.project-card:nth-child(3) .project-visual {
  background: linear-gradient(135deg, #134E4A 0%, #0D9488 100%);
}

.project-content {
  min-width: 0;
  max-width: 100%;
}

.project-title {
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-primary);
  margin: 0 0 var(--space-8);
  letter-spacing: -0.02em;
}

.project-meta {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin: 0 0 var(--space-24);
}

.project-summary {
  font-weight: 500;
  font-size: var(--text-lg);
  color: var(--color-text);
  margin: 0 0 var(--space-24);
  line-height: var(--line-height-body);
}

.project-subhead {
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-primary);
  margin: var(--space-24) 0 var(--space-8);
}

.project-subhead:first-of-type {
  margin-top: 0;
}

.project-text {
  margin: 0 0 var(--space-16);
  font-size: var(--text-base);
  color: var(--color-text);
}

.project-highlights {
  margin: var(--space-24) 0;
  padding-left: var(--space-24);
}

.project-highlights li {
  margin-bottom: var(--space-8);
  font-size: var(--text-sm);
  color: var(--color-text);
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-8);
  margin: var(--space-24) 0;
}

.tech-pill {
  display: inline-block;
  padding: var(--space-8) var(--space-16);
  font-size: var(--text-sm);
  font-weight: 500;
  background: var(--color-bg);
  color: var(--color-primary);
  border-radius: 999px;
  border: 1px solid var(--color-border);
  transition: background var(--transition), border-color var(--transition);
}

.tech-pill:hover {
  background: var(--color-accent);
  color: white;
  border-color: var(--color-accent);
}

.project-impact {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-accent);
  margin: 0;
  padding: var(--space-16);
  background: rgba(37, 99, 235, 0.08);
  border-radius: var(--radius);
  border-left: 4px solid var(--color-accent);
}

@media (max-width: 960px) {
  .project-card {
    display: flex;
    flex-direction: column;
    padding: 40px 32px;
    gap: var(--space-24);
  }
  .project-visual {
    width: 100%;
    height: 14px;
    border-radius: 6px;
    margin: 0 0 var(--space-8) 0;
    flex-shrink: 0;
    order: 2;

    /* Reset previous layout positioning */
    position: static;
  }
  .project-content {
    order: 3;
  }
  .project-number {
    position: static;
    top: auto;
    left: auto;
    margin: 0 0 var(--space-8) 0;
    order: 1;
  }
}

@media (max-width: 1024px) {
  .projects .container-wide { gap: 88px; }
}

@media (max-width: 768px) {
  .projects .container-wide { gap: 72px; }
  .project-card { padding: 40px 28px; }
  .project-number { font-size: 1rem; }
  .project-title { font-size: var(--text-xl); }
  .project-visual { height: 14px; }
}

@media (max-width: 600px) {
  .project-card {
    padding: 32px 24px;
    gap: var(--space-24);
  }
  .project-visual { height: 12px; }
  .project-number {
    font-size: 0.875rem;
  }
  .project-title {
    font-size: 1.25rem;
    margin-bottom: var(--space-12);
  }
  .project-meta {
    font-size: 0.8125rem;
  }
  .project-summary,
  .project-text {
    font-size: 0.9375rem;
    line-height: 1.7;
    margin-bottom: var(--space-16);
  }
  .project-subhead {
    font-size: 1rem;
    margin: var(--space-20) 0 var(--space-12);
  }
  .project-highlights {
    padding-left: var(--space-20);
    margin: var(--space-16) 0;
  }
  .project-highlights li {
    font-size: 0.875rem;
    margin-bottom: var(--space-12);
    line-height: 1.6;
  }
  .project-tech {
    gap: var(--space-8);
    margin: var(--space-20) 0;
  }
  .tech-pill {
    font-size: 0.8125rem;
    padding: 6px 12px;
  }
  .project-impact {
    font-size: 0.875rem;
    padding: var(--space-12);
  }
}

@media (max-width: 375px) {
  .project-visual { height: 12px; }
}

/* ============================================
   EXPERIENCE (Timeline)
   ============================================ */

.timeline {
  position: relative;
  max-width: 720px;
  margin: 0 auto;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 11px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--color-border);
}

.timeline-item {
  position: relative;
  padding-left: var(--space-48);
  padding-bottom: var(--space-48);
}

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

.timeline-dot {
  position: absolute;
  left: 0;
  top: 4px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--color-accent);
  border: 4px solid var(--color-bg);
  box-shadow: 0 0 0 2px var(--color-border);
}

.timeline-content {
  background: var(--color-card-bg);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-lg);
  padding: var(--space-24);
  transition: box-shadow var(--transition);
}

.timeline-content:hover {
  box-shadow: var(--shadow-md);
}

.timeline-title {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-primary);
  margin: 0 0 var(--space-4);
}

.timeline-company {
  font-weight: 600;
  color: var(--color-text);
  margin: 0 0 var(--space-4);
}

.timeline-meta {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin: 0 0 var(--space-16);
}

.timeline-desc {
  margin: 0;
  font-size: var(--text-sm);
  color: var(--color-text);
  line-height: var(--line-height-body);
}

@media (max-width: 768px) {
  .timeline {
    padding-left: 0;
  }
  .timeline::before {
    left: 8px;
  }
  .timeline-item {
    padding-left: var(--space-40);
    padding-bottom: var(--space-40);
  }
  .timeline-dot {
    width: 18px;
    height: 18px;
    left: 0;
    top: 2px;
  }
  .timeline-content {
    padding: var(--space-20);
  }
  .timeline-title {
    font-size: 1.0625rem;
  }
  .timeline-company,
  .timeline-meta,
  .timeline-desc {
    font-size: 0.875rem;
  }
}

/* ============================================
   EDUCATION
   ============================================ */

.education {
  background: var(--color-bg-alt);
}

.education-card {
  max-width: 720px;
  background: var(--color-card-bg);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-lg);
  padding: var(--space-48);
}

.education-degree {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--color-primary);
  margin: 0 0 var(--space-8);
}

.education-school {
  font-size: var(--text-base);
  color: var(--color-text);
  margin: 0 0 var(--space-4);
}

.education-gpa {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin: 0 0 var(--space-24);
}

.education-coursework-label {
  font-weight: 600;
  font-size: var(--text-sm);
  color: var(--color-primary);
  margin: 0 0 var(--space-8);
}

.education-coursework {
  font-size: var(--text-sm);
  color: var(--color-text);
  margin: 0 0 var(--space-16);
  line-height: 1.7;
}

.education-transfer {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin: 0;
}

@media (max-width: 768px) {
  .education-card {
    padding: var(--space-32);
  }
  .education-degree {
    font-size: 1.125rem;
  }
  .education-school,
  .education-gpa,
  .education-coursework-label,
  .education-coursework,
  .education-transfer {
    font-size: 0.875rem;
  }
}

@media (max-width: 480px) {
  .education-card {
    padding: var(--space-24);
  }
}

/* ============================================
   LEADERSHIP
   ============================================ */

.leadership-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-32);
  align-items: start;
}

.leadership-item {
  position: relative;
  background: var(--color-card-bg);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-lg);
  padding: 36px 40px 36px 44px;
  overflow: hidden;
}

/* Subtle left accent bar – different color per card */
.leadership-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  border-radius: var(--radius-lg) 0 0 var(--radius-lg);
}

.leadership-item:nth-child(1)::before {
  background: #B45309; /* warm amber – academic / honor society */
}

.leadership-item:nth-child(2)::before {
  background: #0D9488; /* teal – international / community */
}

.leadership-item h4 {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-primary);
  margin: 0 0 var(--space-8);
}

.leadership-meta {
  margin: 0 0 var(--space-16);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.leadership-desc {
  margin: 0;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-text);
}

@media (max-width: 768px) {
  .leadership-grid {
    grid-template-columns: 1fr;
    gap: var(--space-24);
  }
  .leadership-item {
    padding: 28px 24px 28px 28px;
  }
}

@media (max-width: 600px) {
  .leadership-item h4 {
    font-size: 1.0625rem;
  }
  .leadership-meta {
    font-size: 0.8125rem;
  }
  .leadership-desc {
    font-size: 0.9375rem;
  }
}

/* ============================================
   CONTACT
   ============================================ */

.contact {
  background: var(--color-bg-alt);
}

.contact-content {
  text-align: center;
  max-width: 560px;
  margin: 0 auto;
}

.contact-details {
  margin-bottom: var(--space-32);
}

.contact-details p {
  margin: 0 0 var(--space-12);
  font-size: var(--text-lg);
}

.contact-details a {
  color: var(--color-text);
  transition: color var(--transition);
}

.contact-details a:hover {
  color: var(--color-accent);
}

.contact-social {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 28px;
  flex-wrap: wrap;
}

.social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 16px 28px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--text-base);
  color: white;
  background: var(--color-primary);
  border-radius: 10px;
  border: none;
  transition: transform 0.25s ease, background 0.25s ease, box-shadow 0.25s ease;
  text-decoration: none;
}

.social-link:hover {
  background: var(--color-primary-soft);
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.15);
}

@media (max-width: 600px) {
  .contact-details p {
    font-size: 1.0625rem;
    margin-bottom: var(--space-16);
  }
  .contact-details a {
    display: inline-block;
    min-height: 44px;
    padding: 8px 0;
    line-height: 1.5;
  }
  .contact-social {
    flex-direction: column;
    gap: 16px;
    width: 100%;
  }
  .social-link {
    width: 100%;
    max-width: 280px;
    min-height: 52px;
    font-size: 1.0625rem;
  }
}

/* ============================================
   FOOTER
   ============================================ */

.site-footer {
  background: var(--color-primary);
  color: rgba(255, 255, 255, 0.8);
  padding: var(--space-32) var(--space-24);
  font-size: 14px;
}

.site-footer .container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-16);
  text-align: center;
}

.footer-copy {
  margin: 0;
}

.footer-nav {
  display: flex;
  gap: var(--space-24);
  flex-wrap: wrap;
  justify-content: center;
}

.footer-nav a {
  color: rgba(255, 255, 255, 0.8);
}

.footer-nav a:hover {
  color: white;
}

@media (max-width: 600px) {
  .footer-nav {
    flex-direction: column;
    gap: var(--space-12);
  }
  .footer-nav a {
    font-size: 0.875rem;
    padding: 8px 0;
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }
}

/* ============================================
   REVEAL / ANIMATION PLACEHOLDERS
   ============================================ */

.reveal {
  opacity: 0;
  transform: translateY(24px);
}

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

.animate-hero {
  opacity: 0;
  transform: translateY(20px);
}

/* Focus states for accessibility */
a:focus-visible,
button:focus-visible,
.btn:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* Reduced motion: minimize animations */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}