/* =============================================
   JESUMBO JOSEPH OLUDIPE — PORTFOLIO
   Soft Minimal · Slate Blue Theme
   Fonts: Cormorant Garamond (display) + DM Sans (body)
   ============================================= */

:root {
  --blue-deep:    #1B2A4A;
  --blue-mid:     #2D4A7A;
  --blue-soft:    #4A6FA5;
  --blue-muted:   #6B8FC2;
  --blue-pale:    #D6E4F5;
  --blue-frost:   #EDF3FB;
  --blue-tint:    #F4F7FC;

  --warm-white:   #FDFCFB;
  --text:         #1A2238;
  --text-muted:   #5A6A84;
  --text-light:   #9AAABF;
  --border:       #DDE6F0;

  --accent:       #2D4A7A;
  --accent-light: #6B8FC2;
  --accent-pale:  #D6E4F5;
  --accent-hover: #1B2A4A;

  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body:    'DM Sans', system-ui, sans-serif;

  --max-width: 1100px;
  --section-gap: 120px;

  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-out: cubic-bezier(0, 0, 0.2, 1);
}

/* ---- RESET ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--warm-white);
  color: var(--text);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 40px;
}

/* ---- NAV ---- */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(253,252,251,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
#navbar.scrolled {
  border-bottom-color: var(--border);
  box-shadow: 0 1px 20px rgba(27,42,74,0.07);
}
.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 40px;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--accent);
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
}
.nav-links a {
  font-size: 0.82rem;
  font-weight: 400;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--text); }
.nav-cta {
  padding: 8px 20px;
  border: 1px solid var(--accent) !important;
  border-radius: 2px;
  color: var(--accent) !important;
  transition: background 0.2s, color 0.2s !important;
}
.nav-cta:hover { background: var(--accent) !important; color: white !important; }
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--text);
  transition: transform 0.3s var(--ease), opacity 0.3s;
}
.mobile-menu {
  display: none;
  flex-direction: column;
  background: var(--warm-white);
  border-top: 1px solid var(--border);
  padding: 16px 40px 24px;
}
.mobile-menu a {
  padding: 12px 0;
  font-size: 0.9rem;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
}
.mobile-menu a:last-child { border-bottom: none; }
.mobile-menu.open { display: flex; }

/* ---- HERO ---- */
#hero {
  min-height: 100vh;
  background: var(--blue-tint);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: 68px;
  position: relative;
  overflow: hidden;
}
#hero::before {
  content: '';
  position: absolute;
  top: -180px; right: -180px;
  width: 560px; height: 560px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--blue-pale) 0%, transparent 68%);
  pointer-events: none;
}
#hero::after {
  content: '';
  position: absolute;
  bottom: -100px; left: -100px;
  width: 400px; height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(74,111,165,0.07) 0%, transparent 70%);
  pointer-events: none;
}
.hero-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 80px 40px;
  display: grid;
  grid-template-columns: 1fr 400px;
  gap: 80px;
  align-items: center;
}
.hero-eyebrow {
  font-size: 0.78rem;
  font-weight: 400;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--blue-soft);
  margin-bottom: 20px;
  opacity: 0;
  animation: fadeUp 0.8s var(--ease-out) 0.1s forwards;
}
.hero-name {
  font-family: var(--font-display);
  font-size: clamp(3.2rem, 6vw, 5.5rem);
  font-weight: 300;
  line-height: 1.08;
  letter-spacing: -0.01em;
  color: var(--text);
  margin-bottom: 28px;
  opacity: 0;
  animation: fadeUp 0.8s var(--ease-out) 0.2s forwards;
}
.hero-name em { font-style: italic; color: var(--blue-soft); }
.hero-desc {
  font-size: 1rem;
  color: var(--text-muted);
  max-width: 480px;
  line-height: 1.75;
  margin-bottom: 40px;
  opacity: 0;
  animation: fadeUp 0.8s var(--ease-out) 0.3s forwards;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 48px;
  opacity: 0;
  animation: fadeUp 0.8s var(--ease-out) 0.4s forwards;
}
.btn-primary {
  display: inline-block;
  padding: 13px 30px;
  background: var(--accent);
  color: white;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: 2px;
  transition: background 0.2s, transform 0.2s;
}
.btn-primary:hover { background: var(--accent-hover); transform: translateY(-1px); }
.btn-secondary {
  display: inline-block;
  padding: 13px 30px;
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: 2px;
  transition: border-color 0.2s, color 0.2s;
}
.btn-secondary:hover { border-color: var(--accent); color: var(--accent); }
.hero-socials {
  display: flex;
  gap: 20px;
  opacity: 0;
  animation: fadeUp 0.8s var(--ease-out) 0.5s forwards;
}
.hero-socials a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px; height: 38px;
  border: 1px solid var(--border);
  border-radius: 50%;
  color: var(--text-muted);
  transition: border-color 0.2s, color 0.2s, transform 0.2s;
}
.hero-socials a:hover { border-color: var(--blue-soft); color: var(--blue-soft); transform: translateY(-2px); }
.hero-socials svg { width: 16px; height: 16px; }

.hero-image-wrap {
  position: relative;
  opacity: 0;
  animation: fadeIn 1s var(--ease-out) 0.3s forwards;
}
.hero-image-frame {
  width: 100%;
  aspect-ratio: 3/4;
  border-radius: 3px;
  overflow: hidden;
  background: var(--blue-pale);
  position: relative;
}
.hero-image-frame::after {
  content: '';
  position: absolute;
  inset: 0;
  border: 1px solid rgba(45,74,122,0.15);
  border-radius: 3px;
  pointer-events: none;
}
.hero-photo { width: 100%; height: 100%; object-fit: cover; }
.hero-photo-placeholder {
  position: absolute;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 4rem;
  font-weight: 300;
  color: var(--blue-muted);
  background: var(--blue-pale);
}
.hero-badge {
  position: absolute;
  bottom: -20px; left: -20px;
  background: white;
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 16px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: 0 4px 24px rgba(27,42,74,0.1);
}
.badge-number {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 600;
  color: var(--blue-soft);
  line-height: 1;
}
.badge-label {
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  line-height: 1.4;
}
.hero-scroll {
  position: absolute;
  bottom: 40px; left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  opacity: 0;
  animation: fadeIn 1s var(--ease-out) 1s forwards;
}
.hero-scroll span {
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-light);
}
.scroll-line {
  width: 1px; height: 40px;
  background: linear-gradient(to bottom, var(--text-light), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

/* ---- SECTIONS COMMON ---- */
section { padding: var(--section-gap) 0; }
.section-label {
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--blue-soft);
  margin-bottom: 16px;
  font-weight: 400;
}
.section-heading {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 300;
  line-height: 1.2;
  color: var(--text);
  margin-bottom: 60px;
}
.section-heading em { font-style: italic; color: var(--blue-soft); }

/* ---- ABOUT ---- */
#about { background: var(--warm-white); }
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}
.about-left .section-heading { margin-bottom: 0; }
.about-right p { color: var(--text-muted); margin-bottom: 20px; line-height: 1.8; }
.about-right p strong { color: var(--text); font-weight: 500; }
.about-skills { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 32px; }
.skill-tag {
  padding: 6px 14px;
  background: var(--blue-pale);
  color: var(--blue-mid);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  border-radius: 2px;
  border: 1px solid rgba(45,74,122,0.15);
}

/* ---- EXPERIENCE ---- */
#experience { background: var(--blue-tint); }
.timeline { position: relative; }
.timeline::before {
  content: '';
  position: absolute;
  left: 180px; top: 0; bottom: 0;
  width: 1px;
  background: var(--border);
}
.timeline-item {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 48px;
  padding: 40px 0;
  border-bottom: 1px solid var(--border);
}
.timeline-item:last-child { border-bottom: none; }
.timeline-meta { text-align: right; padding-right: 48px; padding-top: 4px; }
.timeline-period { display: block; font-size: 0.78rem; color: var(--text-light); letter-spacing: 0.04em; line-height: 1.5; }
.timeline-tag {
  display: inline-block;
  margin-top: 8px;
  padding: 3px 10px;
  background: var(--blue-soft);
  color: white;
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-radius: 2px;
}
.timeline-content { padding-left: 48px; }
.timeline-header { display: flex; align-items: baseline; gap: 16px; margin-bottom: 12px; flex-wrap: wrap; }
.timeline-header h3 { font-family: var(--font-display); font-size: 1.4rem; font-weight: 400; color: var(--text); }
.timeline-company { font-size: 0.82rem; color: var(--blue-soft); letter-spacing: 0.04em; }
.timeline-content p { color: var(--text-muted); line-height: 1.75; margin-bottom: 16px; }
.timeline-skills { display: flex; flex-wrap: wrap; gap: 6px; }
.timeline-skills span {
  padding: 3px 10px;
  border: 1px solid var(--border);
  font-size: 0.73rem;
  color: var(--text-muted);
  border-radius: 2px;
  letter-spacing: 0.04em;
}

/* ---- PROJECTS ---- */
#projects { background: var(--warm-white); }

.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.project-card--featured {
  grid-column: span 2;
}
.project-card {
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
  background: white;
  display: flex;
  flex-direction: column;
  transition: box-shadow 0.3s var(--ease), transform 0.3s var(--ease);
}
.project-card:hover {
  box-shadow: 0 12px 40px rgba(27,42,74,0.1);
  transform: translateY(-3px);
}

/* Project image */
.project-image-wrap {
  display: block;
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/9;
  background: var(--blue-frost);
  flex-shrink: 0;
}
.project-card--featured .project-image-wrap {
  aspect-ratio: 16/7;
}
.project-image-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s var(--ease);
}
.project-card:hover .project-image-wrap img {
  transform: scale(1.04);
}
.project-overlay {
  position: absolute;
  inset: 0;
  background: rgba(27,42,74,0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s var(--ease);
  backdrop-filter: blur(2px);
}
.project-card:hover .project-overlay { opacity: 1; }
.project-overlay span {
  color: white;
  font-size: 0.82rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: 1px solid rgba(255,255,255,0.6);
  padding: 10px 22px;
  border-radius: 2px;
}

.project-card-inner {
  padding: 24px 28px 28px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.project-meta { display: flex; gap: 6px; margin-bottom: 12px; }
.project-tech {
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--blue-soft);
  background: var(--blue-pale);
  padding: 3px 8px;
  border-radius: 2px;
}
.project-card h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 400;
  color: var(--text);
  margin-bottom: 10px;
  line-height: 1.35;
}
.project-card h3 a { transition: color 0.2s; }
.project-card h3 a:hover { color: var(--blue-soft); }
.project-card p {
  color: var(--text-muted);
  font-size: 0.88rem;
  line-height: 1.7;
  flex: 1;
  margin-bottom: 16px;
}
.project-link {
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--blue-soft);
  transition: letter-spacing 0.2s, color 0.2s;
  align-self: flex-start;
}
.project-link:hover { letter-spacing: 0.1em; color: var(--blue-mid); }

/* ---- CERTIFICATIONS ---- */
#certifications { background: var(--blue-tint); }
.certs-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.cert-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 24px;
  background: white;
  border: 1px solid var(--border);
  border-radius: 6px;
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
}
.cert-card:hover {
  border-color: var(--blue-muted);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(27,42,74,0.08);
}
.cert-icon {
  flex-shrink: 0;
  width: 40px; height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--blue-pale);
  border-radius: 50%;
  color: var(--blue-soft);
}
.cert-icon svg { width: 18px; height: 18px; }
.cert-body { flex: 1; }
.cert-issuer { display: block; font-size: 0.7rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-light); margin-bottom: 4px; }
.cert-body h4 { font-size: 0.88rem; font-weight: 500; color: var(--text); line-height: 1.3; margin-bottom: 4px; }
.cert-code { font-size: 0.72rem; color: var(--blue-soft); letter-spacing: 0.06em; }
.cert-arrow { color: var(--text-light); font-size: 1rem; transition: transform 0.2s, color 0.2s; }
.cert-card:hover .cert-arrow { transform: translateX(3px); color: var(--blue-soft); }

/* ---- BLOG ---- */
#blog { background: var(--warm-white); }
.blog-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
}
.blog-card { display: flex; flex-direction: column; padding: 40px; background: white; transition: background 0.2s; }
.blog-card:hover { background: var(--blue-tint); }
.blog-date { font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--text-light); margin-bottom: 14px; }
.blog-card h3 { font-family: var(--font-display); font-size: 1.4rem; font-weight: 400; color: var(--text); margin-bottom: 12px; line-height: 1.3; }
.blog-card p { color: var(--text-muted); font-size: 0.9rem; line-height: 1.7; flex: 1; margin-bottom: 20px; }
.blog-read { font-size: 0.8rem; letter-spacing: 0.06em; color: var(--blue-soft); transition: letter-spacing 0.2s; }
.blog-card:hover .blog-read { letter-spacing: 0.1em; }

/* ---- CONTACT ---- */
#contact { background: var(--blue-deep); }
#contact .section-label { color: var(--blue-muted); }
#contact .section-heading { color: white; }
#contact .section-heading em { color: var(--blue-muted); }
.contact-inner { max-width: 600px; margin: 0 auto; text-align: center; }
.contact-desc { color: rgba(255,255,255,0.55); margin-bottom: 48px; font-size: 1rem; line-height: 1.8; }
.contact-links { display: flex; flex-direction: column; gap: 16px; margin-bottom: 48px; }
.contact-link { display: flex; align-items: center; justify-content: center; gap: 10px; font-size: 0.95rem; color: rgba(255,255,255,0.6); transition: color 0.2s; }
.contact-link:hover { color: var(--blue-pale); }
.contact-link svg { width: 18px; height: 18px; }
.contact-cta .btn-primary { background: var(--blue-soft); color: white; }
.contact-cta .btn-primary:hover { background: var(--blue-mid); }

/* ---- FOOTER ---- */
footer { background: var(--blue-deep); border-top: 1px solid rgba(255,255,255,0.06); padding: 24px 0; }
.footer-inner { display: flex; justify-content: space-between; align-items: center; }
.footer-name { font-family: var(--font-display); font-size: 1rem; color: rgba(255,255,255,0.35); letter-spacing: 0.04em; }
.footer-copy { font-size: 0.75rem; color: rgba(255,255,255,0.2); letter-spacing: 0.06em; }

/* ---- ANIMATIONS ---- */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes scrollPulse {
  0%, 100% { opacity: 0.4; }
  50%       { opacity: 1; }
}
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}
.reveal.visible { opacity: 1; transform: none; }

/* ---- RESPONSIVE ---- */
@media (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr 340px; gap: 60px; }
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .certs-grid { grid-template-columns: repeat(2, 1fr); }
  .projects-grid { grid-template-columns: repeat(2, 1fr); }
  .project-card--featured { grid-column: span 2; }
  .timeline::before { display: none; }
  .timeline-item { grid-template-columns: 1fr; gap: 8px; }
  .timeline-meta { text-align: left; padding-right: 0; }
  .timeline-content { padding-left: 0; }
}

@media (max-width: 768px) {
  :root { --section-gap: 80px; }
  .container { padding: 0 24px; }
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .nav-inner { padding: 0 24px; }
  .hero-inner { grid-template-columns: 1fr; padding: 60px 24px 100px; gap: 48px; }
  .hero-image-wrap { max-width: 300px; margin: 0 auto; }
  .hero-name { font-size: 3rem; }
  .hero-badge { bottom: -16px; left: -8px; }
  .projects-grid { grid-template-columns: 1fr; }
  .project-card--featured { grid-column: span 1; }
  .certs-grid { grid-template-columns: 1fr; }
  .blog-grid { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; gap: 8px; text-align: center; }
  .mobile-menu { padding: 16px 24px 24px; }
}

@media (max-width: 480px) {
  .hero-actions { flex-direction: column; }
  .btn-primary, .btn-secondary { text-align: center; }
}