/* ── KRT Tuned — Black & White Portfolio ── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', 'Segoe UI', Arial, sans-serif;
  color: #1a1a1a;
  background: #ffffff;
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

/* ── Layout ── */
.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}

section {
  padding: 80px 0;
}

section:nth-child(even):not(.hero) {
  background: #f5f5f5;
}

section:nth-child(odd):not(.hero) {
  background: #ffffff;
}

/* ── Navigation ── */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid #e5e5e5;
  z-index: 100;
  padding: 0 24px;
}

nav .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 64px;
}

.nav-logo {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: #0d0d0d;
  text-decoration: none;
}

.nav-logo:hover {
  color: #000000;
}

.nav-links {
  display: flex;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: #1a1a1a;
  text-decoration: none;
  letter-spacing: 0.3px;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: #000000;
}

/* Mobile menu toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: #1a1a1a;
  margin: 5px 0;
  transition: 0.3s;
}

/* ── Hero ── */
.hero {
  position: relative;
  padding: 160px 0 100px;
  text-align: center;
  background: #0d0d0d url('assets/hero-shop.jpg') center center / cover no-repeat;
  color: #ffffff;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
}

.hero .container {
  position: relative;
  z-index: 1;
}

.hero h1 {
  font-size: 48px;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.hero .tagline {
  font-size: 20px;
  font-weight: 400;
  color: #999;
  font-style: italic;
  margin-bottom: 8px;
}

.hero .subtitle {
  font-size: 16px;
  color: #888;
  margin-bottom: 32px;
}

.hero-cta {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ── Buttons ── */
.btn {
  display: inline-block;
  padding: 12px 28px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-decoration: none;
  border-radius: 6px;
  transition: all 0.2s;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: #ffffff;
  color: #0d0d0d;
}

.btn-primary:hover {
  background: #e5e5e5;
}

.btn-outline {
  background: transparent;
  color: #ffffff;
  border: 1.5px solid #555;
}

.btn-outline:hover {
  border-color: #ffffff;
}

.btn-dark {
  background: #0d0d0d;
  color: #ffffff;
}

.btn-dark:hover {
  background: #333;
}

/* ── Section Headers ── */
.section-label {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: #666;
  margin-bottom: 8px;
}

.section-title {
  font-size: 32px;
  font-weight: 700;
  color: #0d0d0d;
  margin-bottom: 16px;
}

.section-divider {
  width: 48px;
  height: 2px;
  background: #0d0d0d;
  margin-bottom: 40px;
}

/* ── About ── */
.about-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 48px;
  align-items: start;
}

.about-photo img {
  width: 100%;
  border-radius: 8px;
  object-fit: cover;
  object-position: top;
  max-height: 480px;
}

.about-content {
  max-width: 720px;
}

.about-content p {
  font-size: 16px;
  color: #2a2a2a;
  line-height: 1.8;
  margin-bottom: 16px;
}

.about-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 24px;
}

.tag {
  font-size: 13px;
  font-weight: 500;
  padding: 6px 16px;
  border-radius: 99px;
  background: #f0f0f0;
  border: 1px solid #d0d0d0;
  color: #333;
}

/* ── Skills & Credentials ── */
.credentials-header {
  margin-bottom: 48px;
}

.cert-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 12px;
}

.cert-badge {
  font-size: 13px;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 6px;
  background: #0d0d0d;
  color: #ffffff;
}

.skills-section {
  margin-bottom: 32px;
}

.skills-section:last-child {
  margin-bottom: 0;
}

.skills-label {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: #555;
  margin-bottom: 12px;
}

.pill-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.pill {
  font-size: 13px;
  font-weight: 500;
  padding: 6px 16px;
  border-radius: 99px;
  background: #f0f0f0;
  border: 1px solid #d0d0d0;
  color: #1a1a1a;
}

.pill.highlight {
  background: #f0f0f0;
  border: 1px solid #d0d0d0;
  color: #1a1a1a;
}

.pill.subtle {
  background: #f0f0f0;
  border: 1px solid #d0d0d0;
  color: #1a1a1a;
}

/* ── Experience ── */
.timeline {
  max-width: 720px;
}

.timeline-item {
  padding-bottom: 32px;
  margin-bottom: 32px;
  border-bottom: 1px solid #eee;
}

.timeline-item:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.timeline-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 4px;
}

.timeline-company {
  font-size: 18px;
  font-weight: 700;
  color: #0d0d0d;
}

.timeline-date {
  font-size: 14px;
  color: #666;
  white-space: nowrap;
}

.timeline-role {
  font-size: 15px;
  font-style: italic;
  color: #444;
  margin-bottom: 12px;
}

.timeline-bullets {
  list-style: none;
  padding: 0;
}

.timeline-bullets li {
  position: relative;
  padding-left: 16px;
  margin-bottom: 6px;
  font-size: 15px;
  color: #333;
  line-height: 1.7;
}

.timeline-bullets li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 5px;
  height: 5px;
  background: #ccc;
  border-radius: 50%;
}

/* ── Timeline Photos ── */
.timeline-photos {
  display: flex;
  gap: 12px;
  margin-top: 16px;
  overflow-x: auto;
}

.timeline-photos img {
  width: 200px;
  height: 150px;
  object-fit: cover;
  border-radius: 6px;
  flex-shrink: 0;
}

/* ── Projects ── */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.project-card {
  background: #ffffff;
  border: 1px solid #e5e5e5;
  border-radius: 8px;
  padding: 32px;
  transition: box-shadow 0.2s;
}

.project-card:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
}

.project-img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  border-radius: 6px;
  margin-bottom: 16px;
}

.project-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: #0d0d0d;
  margin-bottom: 8px;
}

.project-card p {
  font-size: 15px;
  color: #333;
  line-height: 1.7;
  margin-bottom: 16px;
}

.feature-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.chip {
  font-size: 11px;
  font-weight: 500;
  padding: 3px 10px;
  border-radius: 4px;
  background: #ebebeb;
  border: 1px solid #d0d0d0;
  color: #333;
}

/* ── Contact ── */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.contact-info h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 24px;
  color: #0d0d0d;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  font-size: 15px;
  color: #333;
}

.contact-item .icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #f5f5f5;
  border-radius: 8px;
  font-size: 18px;
  flex-shrink: 0;
}

.contact-form h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 24px;
  color: #0d0d0d;
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: #333;
  margin-bottom: 6px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 10px 14px;
  font-size: 15px;
  font-family: inherit;
  border: 1px solid #e0e0e0;
  border-radius: 6px;
  background: #ffffff;
  color: #1a1a1a;
  transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: #999;
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

/* ── Footer ── */
footer {
  background: #0d0d0d;
  color: #999;
  text-align: center;
  padding: 48px 24px 32px;
  font-size: 15px;
}

.footer-contact {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.footer-contact a {
  color: #ffffff;
  text-decoration: none;
  transition: color 0.2s;
}

.footer-contact a:hover {
  color: #ccc;
}

.footer-sep {
  color: #555;
}

.footer-copy {
  font-size: 13px;
  color: #666;
}

/* ── Responsive: Tablet (768px) ── */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 32px;
    letter-spacing: 2px;
  }

  .hero .tagline {
    font-size: 17px;
  }

  .hero .subtitle {
    font-size: 14px;
  }

  .section-title {
    font-size: 26px;
  }

  section {
    padding: 56px 0;
  }

  .hero {
    padding: 120px 0 72px;
  }

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

  .contact-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  /* About layout stacks */
  .about-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .about-photo img {
    max-height: 500px;
    object-fit: cover;
    object-position: top center;
  }

  /* Timeline photos smaller */
  .timeline-photos img {
    width: 160px;
    height: 120px;
  }

  /* Mobile nav */
  .nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    flex-direction: column;
    padding: 24px;
    gap: 20px;
    border-bottom: 1px solid #e5e5e5;
  }

  .nav-links.active {
    display: flex;
  }

  .nav-links a {
    font-size: 16px;
    padding: 8px 0;
  }

  .nav-toggle {
    display: block;
  }

  /* Experience stacking */
  .timeline-header {
    flex-direction: column;
    gap: 2px;
  }

  .timeline-company {
    font-size: 16px;
  }

  .timeline-bullets li {
    font-size: 14px;
  }

  /* Project cards */
  .project-card {
    padding: 24px;
  }

  /* Skills pills */
  .pill {
    font-size: 12px;
    padding: 6px 14px;
  }

  .cert-badge {
    font-size: 12px;
    padding: 6px 14px;
  }

  /* Credentials header */
  .credentials-header {
    margin-bottom: 32px;
  }

  .skills-section {
    margin-bottom: 24px;
  }
}

/* ── Responsive: Phone (480px) ── */
@media (max-width: 480px) {
  .hero h1 {
    font-size: 24px;
    letter-spacing: 1.5px;
  }

  .hero .tagline {
    font-size: 15px;
  }

  .hero .subtitle {
    font-size: 13px;
    padding: 0 8px;
  }

  .container {
    padding: 0 16px;
  }

  section {
    padding: 48px 0;
  }

  .hero {
    padding: 100px 0 64px;
  }

  .section-title {
    font-size: 22px;
  }

  .section-label {
    font-size: 11px;
  }

  /* CTA buttons stack */
  .hero-cta {
    flex-direction: column;
    align-items: center;
  }

  .btn {
    width: 100%;
    max-width: 280px;
    text-align: center;
    padding: 14px 28px;
    font-size: 15px;
  }

  /* About */
  .about-content p {
    font-size: 15px;
  }

  .about-tags {
    gap: 6px;
  }

  .tag {
    font-size: 12px;
    padding: 5px 12px;
  }

  /* Skills */
  .pill-row {
    gap: 6px;
  }

  .pill {
    font-size: 12px;
    padding: 5px 12px;
  }

  .cert-row {
    gap: 6px;
  }

  .cert-badge {
    font-size: 11px;
    padding: 5px 12px;
  }

  /* Experience */
  .timeline-company {
    font-size: 16px;
  }

  .timeline-date {
    font-size: 13px;
  }

  .timeline-role {
    font-size: 14px;
  }

  .timeline-bullets li {
    font-size: 14px;
    line-height: 1.6;
  }

  /* Projects */
  .project-card {
    padding: 20px;
  }

  .project-card h3 {
    font-size: 16px;
  }

  .project-card p {
    font-size: 14px;
  }

  /* Contact */
  .contact-info h3,
  .contact-form h3 {
    font-size: 18px;
  }

  .contact-item {
    font-size: 14px;
  }

  .form-group input,
  .form-group textarea {
    font-size: 16px;
    padding: 12px 14px;
  }

  /* Timeline photos */
  .timeline-photos img {
    width: 140px;
    height: 105px;
  }

  /* Project images */
  .project-img {
    height: 150px;
  }

  /* Footer */
  footer {
    font-size: 13px;
    padding: 32px 16px;
  }
}