:root {
  /* Colors - Boutique / Premium Theme */
  --bg-primary: #F4F1ED; /* Soft warm off-white */
  --bg-secondary: #EBE6DF; /* Slightly darker cream for sections */
  --bg-card: #FFFFFF;
  --bg-card-hover: #FCFAFB;
  
  --text-primary: #1F201C; /* Deep charcoal/greenish black */
  --text-secondary: #5C5E57;
  --text-tertiary: #8C8E86;
  
  --accent-color: #2D3929; /* Deep sophisticated olive/pine */
  --accent-light: #E0E7DB; 
  --border-color: #D9D4CC;

  /* Typography */
  --font-serif: 'Playfair Display', serif;
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  
  /* Sizes & Borders */
  --border-radius-sm: 8px;
  --border-radius-md: 16px;
  --border-radius-lg: 32px;
  --border-radius-pill: 9999px;
  
  /* Layout */
  --container-width: 1200px;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 5rem;

  --transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--accent-color);
  outline-offset: 4px;
}

ul {
  list-style: none;
}

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

/* Typography styles */
h1, h2, h3, h4, .serif-text {
  font-family: var(--font-serif);
  font-weight: 500;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.text-sub {
  color: var(--text-secondary);
  font-size: 1.125rem;
  line-height: 1.5;
}

/* Container */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 5%;
}

/* Form Buttons / Inputs */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2rem;
  border-radius: var(--border-radius-pill);
  font-weight: 500;
  font-size: 1rem;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  gap: 0.5rem;
}

.btn-primary {
  background-color: var(--accent-color);
  color: #FFF;
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(45, 57, 41, 0.2);
}

.btn-secondary {
  background-color: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}
.btn-secondary:hover {
  background-color: rgba(0,0,0,0.03);
  transform: translateY(-2px);
}

.tag {
  display: inline-block;
  padding: 0.35rem 0.85rem;
  border-radius: var(--border-radius-pill);
  font-size: 0.85rem;
  background-color: rgba(0,0,0,0.05);
  color: var(--text-secondary);
  font-weight: 500;
}

/* Navigation - Floating Pill */
.nav-wrapper {
  position: fixed;
  top: 1.5rem;
  left: 0;
  width: 100%;
  z-index: 1000;
  display: flex;
  justify-content: center;
  pointer-events: none; /* Let clicks pass through outside the pill */
}

.nav {
  pointer-events: auto;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: var(--border-radius-pill);
  padding: 0.5rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
  width: 90%;
  max-width: 900px;
  transition: var(--transition);
}

.logo {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--accent-color);
  font-style: italic;
}

.nav-links {
  display: flex;
  gap: 2rem;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition);
  position: relative;
}

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

.nav-link.active {
  color: var(--text-primary);
}

.nav-link::after {
  content: '';
  position: absolute;
  width: 0;
  height: 1px;
  bottom: -2px;
  left: 0;
  background-color: var(--text-primary);
  transition: var(--transition);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  flex-direction: column;
  gap: 4px;
}

.mobile-menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--text-primary);
  transition: var(--transition);
}

/* Sections Base */
section {
  padding: var(--spacing-xl) 0;
  position: relative;
  scroll-margin-top: 6rem;
}

.section-label {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-sans);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 0.85rem;
  color: var(--text-tertiary);
  margin-bottom: 1rem;
  font-weight: 600;
}

.section-label::before {
  content: '';
  width: 1.75rem;
  height: 1px;
  background: var(--text-tertiary);
}

.section-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  margin-bottom: 1.5rem;
  max-width: 800px;
  color: var(--text-primary);
}

.section-header {
  margin-bottom: 3rem;
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 8rem;
  background: radial-gradient(circle at 82% 34%, rgba(224, 231, 219, 0.72), transparent 32%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 4rem;
  align-items: center;
}

.hero-kicker {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
  color: var(--text-tertiary);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-kicker::before {
  content: '';
  width: 2rem;
  height: 1px;
  background: var(--text-tertiary);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--bg-card);
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius-pill);
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 2rem;
  border: 1px solid var(--border-color);
  box-shadow: 0 4px 10px rgba(0,0,0,0.02);
}

.hero-badge-dot {
  width: 8px;
  height: 8px;
  background-color: #4CAF50;
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(76, 175, 80, 0.4); }
  70% { box-shadow: 0 0 0 6px rgba(76, 175, 80, 0); }
  100% { box-shadow: 0 0 0 0 rgba(76, 175, 80, 0); }
}

.hero-title {
  font-size: clamp(3rem, 7vw, 5.5rem);
  margin-bottom: 1.5rem;
  color: var(--text-primary);
}

.hero-title .highlight {
  font-style: italic;
  color: var(--accent-color);
  font-weight: 400;
}

.hero-subtitle {
  font-size: clamp(1.1rem, 2vw, 1.25rem);
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
  max-width: 600px;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 3rem;
}

.hero-cta {
  display: flex;
  gap: 1rem;
}

/* Hero Visual Card */
.hero-visual-card {
  background: var(--bg-card);
  border-radius: var(--border-radius-lg);
  padding: 3rem;
  border: 1px solid var(--border-color);
  box-shadow: 0 20px 40px rgba(0,0,0,0.03);
  position: relative;
  overflow: hidden;
}

.hero-visual-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; height: 120px;
  background: linear-gradient(135deg, rgba(244,241,237,0) 0%, var(--accent-light) 100%);
  opacity: 0.5;
  border-bottom-left-radius: 50%;
  border-bottom-right-radius: 50%;
  transform: scale(1.5) translateY(-50%);
}

.hero-stat-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  position: relative;
  z-index: 10;
}

.hero-stat {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.hero-stat-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-color);
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  flex-shrink: 0;
  border: 1px solid var(--border-color);
}

.hero-stat-info h4 {
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-family: var(--font-sans);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.2rem;
}

.hero-stat-info p {
  font-size: 1.1rem;
  font-family: var(--font-serif);
  color: var(--text-primary);
}

/* About Section */
#about {
  background: var(--bg-secondary);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}

.about-image {
  position: relative;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 40px rgba(0,0,0,0.08);
  aspect-ratio: 4/5;
}

.about-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.about-content h3 {
  font-size: 2.5rem;
  margin-bottom: 2rem;
}

.about-content p {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.about-features {
  margin-top: 3rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.about-feature {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 500;
}

.about-feature-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--accent-color);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
}

/* Skills Grid */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 1.5rem;
}

.skill-card {
  grid-column: span 6;
  background: var(--bg-card);
  border-radius: var(--border-radius-lg);
  padding: 2rem;
  border: 1px solid var(--border-color);
  transition: var(--transition);
}

.skill-card:nth-child(1),
.skill-card:nth-child(4) {
  grid-column: span 7;
}

.skill-card:nth-child(2),
.skill-card:nth-child(3) {
  grid-column: span 5;
}

.skill-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 30px rgba(0,0,0,0.04);
}

.skill-header {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  margin-bottom: 1.5rem;
}

.skill-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  border: 1px solid var(--border-color);
  border-radius: 50%;
  background: var(--accent-light);
  color: var(--accent-color);
  font-family: var(--font-sans);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.06em;
}

.skill-title {
  font-size: 1.5rem;
}

.skill-subtitle {
  color: var(--text-tertiary);
  font-size: 0.9rem;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

/* Timeline (Experience) */
.timeline {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.timeline-item {
  display: flex;
  gap: 2rem;
}

.timeline-date {
  width: 200px;
  flex-shrink: 0;
  font-weight: 600;
  color: var(--text-tertiary);
  padding-top: 2.5rem;
}

.timeline-card {
  background: var(--bg-card);
  border-radius: var(--border-radius-md);
  padding: 2.5rem;
  border: 1px solid var(--border-color);
  flex-grow: 1;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.timeline-card::before {
  content: attr(data-step);
  position: absolute;
  top: 1.5rem;
  right: 1.75rem;
  color: rgba(45, 57, 41, 0.12);
  font-family: var(--font-serif);
  font-size: 2.75rem;
  font-style: italic;
  line-height: 1;
}

.timeline-card:hover {
  background-color: var(--bg-card-hover);
}

.timeline-company {
  font-size: 1.8rem;
  margin-bottom: 0.5rem;
}

.timeline-position {
  font-family: var(--font-sans);
  color: var(--accent-color);
  font-weight: 500;
  margin-bottom: 1.5rem;
  font-size: 1.1rem;
}

.timeline-description {
  color: var(--text-secondary);
}

/* Projects */
#projects {
  background: var(--bg-secondary);
}

#projects .section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 2rem;
}

#projects .section-title {
  margin-bottom: 1rem;
}

.projects-intro {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 610px;
}

.app-store-profile {
  flex-shrink: 0;
  background: rgba(255, 255, 255, 0.42);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.5rem;
}

.project-card {
  --project-tint: var(--accent-light);
  background: var(--bg-card);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}

.project-card:nth-child(2),
.project-card:nth-child(6) {
  --project-tint: #E7E2D8;
}

.project-card:nth-child(3),
.project-card:nth-child(7) {
  --project-tint: #DDE4E3;
}

.project-card:nth-child(4) {
  --project-tint: #E6DFD2;
}

.project-card:nth-child(5) {
  --project-tint: #E4DED9;
}

.project-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.06);
  border-color: rgba(45, 57, 41, 0.24);
}

.project-card-featured {
  grid-column: span 2;
}

.project-image {
  min-height: 190px;
  background:
    radial-gradient(circle at 70% 20%, rgba(255,255,255,0.9), transparent 42%),
    var(--project-tint);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2.5rem;
}

.project-image img {
  width: 116px;
  height: 116px;
  object-fit: cover;
  border-radius: 25%;
  box-shadow: 0 18px 38px rgba(31, 32, 28, 0.16);
  transition: var(--transition);
}

.project-card:hover .project-image img {
  transform: scale(1.04) rotate(-1deg);
}

.project-card-featured .project-image img {
  width: 142px;
  height: 142px;
}

.project-content {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.project-category {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-tertiary);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.project-title {
  font-size: 1.75rem;
  margin-bottom: 1rem;
}

.project-description {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.project-tech-tag {
  font-size: 0.8rem;
  padding: 0.25rem 0.6rem;
  border-radius: 4px;
  background: var(--bg-primary);
  color: var(--text-secondary);
}

.project-links {
  display: flex;
  gap: 1rem;
  align-items: center;
}

.project-link {
  font-weight: 500;
  color: var(--accent-color);
  display: flex;
  align-items: center;
  gap: 0.4rem;
  width: fit-content;
}

.project-link:hover {
  text-decoration: underline;
}

/* Contact */
.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 4rem;
  background: var(--bg-card);
  padding: 4rem;
  border-radius: var(--border-radius-lg);
  border: 1px solid var(--border-color);
  box-shadow: 0 24px 70px rgba(45, 57, 41, 0.06);
}

.contact-form {
  padding: 2rem;
  border: 1px solid var(--border-color);
  border-radius: calc(var(--border-radius-lg) - 8px);
  background: var(--bg-primary);
}

.contact-info h3 {
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
}

.contact-links {
  margin-top: 3rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.contact-link {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 1.1rem;
  color: var(--text-secondary);
  transition: var(--transition);
}

.contact-link:hover {
  color: var(--accent-color);
  transform: translateX(5px);
}

.contact-link-icon {
  width: 40px;
  height: 40px;
  background: var(--bg-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-color);
  font-family: var(--font-sans);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.form-input, .form-textarea {
  width: 100%;
  padding: 1rem 1.2rem;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  font-family: var(--font-sans);
  font-size: 1rem;
  background: var(--bg-card);
  transition: var(--transition);
}

.form-input:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--accent-color);
  background: var(--bg-card);
  box-shadow: 0 0 0 4px rgba(45, 57, 41, 0.08);
}

.form-textarea {
  min-height: 150px;
  resize: vertical;
}

.form-submit {
  width: 100%;
  margin-top: 1rem;
}

/* Footer */
.footer {
  padding: 3rem 0;
  border-top: 1px solid var(--border-color);
  background: var(--bg-card);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-copy {
  color: var(--text-tertiary);
}

.footer-top {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition);
}

.footer-top:hover {
  color: var(--accent-color);
  transform: translateY(-2px);
}

.footer-socials {
  display: flex;
  gap: 1rem;
}

.footer-social {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: var(--transition);
}

.footer-social:hover {
  background: var(--accent-color);
  color: white;
}

/* Responsive */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero-subtitle {
    margin: 0 auto 2.5rem;
  }

  .hero-kicker {
    justify-content: center;
  }
  
  .hero-cta {
    justify-content: center;
  }
  
  .hero-tags {
    justify-content: center;
  }
  
  .about-grid {
    grid-template-columns: 1fr;
  }
  
  .timeline-item {
    flex-direction: column;
    gap: 0.5rem;
  }
  
  .timeline-date {
    padding-top: 0;
    width: auto;
  }
  
  .contact-wrapper {
    grid-template-columns: 1fr;
    padding: 2.5rem;
  }

  .projects-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .skill-card,
  .skill-card:nth-child(1),
  .skill-card:nth-child(2),
  .skill-card:nth-child(3),
  .skill-card:nth-child(4) {
    grid-column: span 6;
  }
}

@media (max-width: 768px) {
  section {
    padding: 4rem 0;
  }

  #projects .section-header {
    align-items: flex-start;
    flex-direction: column;
  }

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

  .skill-card,
  .skill-card:nth-child(1),
  .skill-card:nth-child(2),
  .skill-card:nth-child(3),
  .skill-card:nth-child(4) {
    grid-column: 1 / -1;
  }

  .project-card-featured {
    grid-column: auto;
  }

  .nav {
    flex-direction: column;
    align-items: flex-start;
  }
  .nav.menu-open {
    border-radius: var(--border-radius-md);
  }
  .nav-wrapper {
    align-items: flex-start;
  }
  .nav-links {
    display: flex;
    flex-direction: column;
    width: 100%;
    margin-top: 0;
    gap: 1.25rem;
    max-height: 0;
    visibility: hidden;
    overflow: hidden;
    /* Premium easeOutQuint for a liquid expansion feel */
    transition: max-height 0.6s cubic-bezier(0.22, 1, 0.36, 1), margin-top 0.6s cubic-bezier(0.22, 1, 0.36, 1), padding 0.6s cubic-bezier(0.22, 1, 0.36, 1);
  }
  .nav-links.active {
    margin-top: 1.5rem;
    padding-bottom: 1rem;
    max-height: 340px;
    visibility: visible;
  }
  
  /* Staggered text fade-in effect */
  .nav-links li {
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.3s ease, transform 0.3s ease;
  }
  
  .nav-links.active li {
    opacity: 1;
    transform: translateY(0);
  }
  
  .nav-links.active li:nth-child(1) { transition-delay: 0.10s; }
  .nav-links.active li:nth-child(2) { transition-delay: 0.15s; }
  .nav-links.active li:nth-child(3) { transition-delay: 0.20s; }
  .nav-links.active li:nth-child(4) { transition-delay: 0.25s; }
  .nav-links.active li:nth-child(5) { transition-delay: 0.30s; }
  .nav-links.active li:nth-child(6) { transition-delay: 0.35s; }
  .mobile-menu-btn {
    display: flex;
    position: absolute;
    right: 1.5rem;
    top: 1rem;
  }
  .mobile-menu-btn.active span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
  }
  .mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
  }
  .mobile-menu-btn.active span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
  }
  .section-title {
    font-size: 2.5rem;
  }
  .hero-visual-card {
    display: block;
    padding: 1.5rem;
  }

  .hero-stat-list {
    gap: 1rem;
  }

  .contact-form {
    padding: 1.5rem;
  }

  .contact-wrapper {
    gap: 2rem;
    padding: 1.5rem;
  }

  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
    gap: 1rem;
  }
}

/* Animations */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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