landing.css

/* HERO */
.hero {
  min-height: calc(100vh - 60px);
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 4rem;
  padding: 5rem 6vw;
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
  isolation: isolate;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 2rem 0 auto;
  height: 18rem;
  background:
    radial-gradient(circle at 68% 36%, rgba(79, 140, 255, 0.16), transparent 42%),
    radial-gradient(circle at 44% 68%, rgba(124, 92, 255, 0.09), transparent 38%);
  filter: blur(14px);
  opacity: 0.88;
  z-index: -1;
  pointer-events: none;
}

.hero-particle-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: -2;
  pointer-events: none;
  opacity: 0.78;
  mix-blend-mode: screen;
  mask-image: radial-gradient(circle at 44% 42%, #000 0%, #000 54%, transparent 96%);
}

html[data-theme="light"] .hero-particle-canvas {
  opacity: 0.44;
  mix-blend-mode: multiply;
}

.hero-text,
.hero-visual {
  position: relative;
  z-index: 1;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid rgba(79, 140, 255, 0.22);
  padding: 0.25rem 0.75rem;
  border-radius: 100px;
  margin-bottom: 1.5rem;
  box-shadow: 0 14px 28px rgba(7, 15, 26, 0.18);
}

.hero-tag::before {
  content: "\2022";
  font-size: 0.5rem;
}

h1 {
  font-family: var(--display);
  font-size: clamp(2.8rem, 6vw, 5rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
}

h1 em {
  font-style: normal;
  color: var(--accent);
}

.hero-bio {
  font-size: 1.06rem;
  color: var(--text2);
  font-weight: 400;
  max-width: 33rem;
  line-height: 1.82;
  margin-bottom: 2.5rem;
}

.hero-certs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2.5rem;
}

.cert-badge-pill {
  font-family: var(--mono);
  font-size: 0.7rem;
  padding: 0.34rem 0.72rem;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  color: var(--text2);
}

.cert-badge-pill.active {
  border-color: rgba(79, 140, 255, 0.26);
  color: var(--accent);
  background: rgba(79, 140, 255, 0.12);
}

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

.hero-visual {
  display: flex;
  justify-content: center;
}

.profile-card {
  position: relative;
  width: 300px;
}

.profile-card::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(79, 140, 255, 0.34) 0%, rgba(124, 92, 255, 0.14) 34%, transparent 62%);
  opacity: 0.48;
}

.profile-card-inner {
  position: relative;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.035), rgba(255, 255, 255, 0.012)),
    linear-gradient(135deg, rgba(79, 140, 255, 0.05), transparent 44%),
    var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 2rem;
  text-align: center;
  box-shadow: 0 26px 44px rgba(3, 8, 15, 0.3);
}

.profile-img {
  width: 90px;
  height: 90px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid rgba(79, 140, 255, 0.42);
  margin-bottom: 1rem;
  display: block;
  margin-left: auto;
  margin-right: auto;
}

.profile-name {
  font-family: var(--display);
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.profile-title {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--accent);
  margin-bottom: 1.25rem;
}

.profile-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.stat-box {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.012)),
    var(--surface2);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 0.75rem 0.5rem;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

.stat-num {
  font-family: var(--display);
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--accent);
  display: block;
}

.stat-label {
  font-size: 0.7rem;
  color: var(--text3);
  font-family: var(--mono);
}

.profile-links {
  display: flex;
  gap: 0.5rem;
  justify-content: center;
}

.profile-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--text2);
  padding: 0.4rem 0.75rem;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all var(--transition);
}

.profile-link:hover {
  border-color: rgba(79, 140, 255, 0.28);
  color: var(--text);
  background: rgba(79, 140, 255, 0.08);
}

/* SECTION */
section {
  padding: 6.4rem 6vw;
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
  isolation: isolate;
}

section::before,
section::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: -1;
}

section::before {
  inset: 0 0 auto;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.08), transparent);
}

section::after {
  background:
    radial-gradient(circle at 14% 0%, rgba(79, 140, 255, 0.1), transparent 30%),
    radial-gradient(circle at 86% 18%, rgba(124, 92, 255, 0.06), transparent 30%);
  opacity: 0.62;
}

.section-header {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 2.8rem;
}

.section-label {
  font-family: var(--mono);
  font-size: 0.68rem;
  color: var(--accent);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.35rem 0.6rem;
  border-radius: 999px;
  border: 1px solid rgba(79, 140, 255, 0.18);
  background: rgba(79, 140, 255, 0.08);
}

h2 {
  font-family: var(--display);
  font-size: clamp(1.7rem, 3vw, 2.3rem);
  font-weight: 700;
  letter-spacing: -0.03em;
}

.section-line {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, rgba(79, 140, 255, 0.24), var(--border) 30%, transparent);
  align-self: center;
}

/* ABOUT */
.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(17rem, 0.86fr);
  gap: 4.5rem;
  align-items: start;
}

.about-text {
  max-width: 42rem;
}

.about-text p {
  color: var(--text2);
  font-size: 1.02rem;
  line-height: 1.95;
  margin-bottom: 1.35rem;
  font-weight: 400;
}

.about-text p:first-child {
  font-size: 1.08rem;
  color: var(--text);
}

.about-text p strong {
  color: var(--text);
  font-weight: 500;
  background: linear-gradient(transparent 62%, rgba(79, 140, 255, 0.14) 0);
}

.about-aside {
  padding-left: 1.9rem;
  border-left: 1px solid var(--border);
  display: grid;
  gap: 1.9rem;
}

.about-aside-intro {
  display: grid;
  gap: 0.75rem;
  max-width: 22rem;
}

.about-kicker {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
}

.about-aside-intro p {
  color: var(--text2);
  line-height: 1.8;
}

.about-facts {
  display: grid;
}

.about-fact {
  display: grid;
  grid-template-columns: minmax(6rem, 7rem) minmax(0, 1fr);
  gap: 1rem;
  padding: 1rem 0;
  border-top: 1px solid var(--border);
}

.about-fact:last-child {
  border-bottom: 1px solid var(--border);
}

.about-fact dt {
  font-family: var(--mono);
  font-size: 0.68rem;
  color: var(--text3);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.about-fact dd {
  color: var(--text);
  line-height: 1.75;
}

/* Tighter About → Certifications handoff */
#about {
  padding-bottom: clamp(3rem, 5vw, 4.5rem);
}

/* CERTIFICATIONS */
#certifications {
  padding-top: 0;
}

.cert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.1rem;
  align-items: start;
}

.cert-card {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.035), rgba(255, 255, 255, 0.012)),
    linear-gradient(135deg, rgba(79, 140, 255, 0.06), transparent 48%),
    var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition), background var(--transition);
  position: relative;
  overflow: hidden;
  box-shadow: 0 18px 34px rgba(3, 8, 15, 0.24);
}

.cert-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, rgba(79, 140, 255, 0.82), rgba(124, 92, 255, 0.26) 42%, transparent 78%);
  opacity: 0.6;
  transition: opacity var(--transition);
}

.cert-card:hover,
.cert-card.is-open {
  border-color: rgba(79, 140, 255, 0.28);
  transform: translateY(-3px);
  box-shadow: 0 26px 44px rgba(3, 8, 15, 0.3);
}

.cert-card:hover::before,
.cert-card.is-open::before {
  opacity: 1;
}

.cert-card-progress::before {
  background: linear-gradient(90deg, rgba(211, 163, 95, 0.88), transparent 72%);
}

.cert-card-progress:hover,
.cert-card-progress.is-open,
.cert-card-progress:focus-within {
  border-color: rgba(211, 163, 95, 0.42);
}

.cert-card-toggle {
  width: 100%;
  padding: 1.3rem 1.3rem 0;
  border: 0;
  background: transparent;
  color: inherit;
  font: inherit;
  text-align: left;
  display: grid;
  gap: 0.9rem;
  cursor: pointer;
  appearance: none;
}

.cert-card-toggle:focus-visible {
  outline: none;
}

.cert-card-toggle:focus-visible + .cert-panel-shell + .cert-card-footer .cert-verify,
.cert-card:focus-within {
  border-color: rgba(79, 140, 255, 0.28);
}

.cert-card:focus-within {
  box-shadow: 0 0 0 3px rgba(79, 140, 255, 0.16), 0 26px 44px rgba(3, 8, 15, 0.28);
}

.cert-card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

.cert-card-heading {
  display: grid;
  gap: 0.3rem;
}

.cert-name {
  font-family: var(--display);
  font-size: 1.18rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.2;
}

.cert-org {
  font-family: var(--mono);
  font-size: 0.68rem;
  color: var(--accent);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.cert-chevron {
  flex-shrink: 0;
  width: 2rem;
  height: 2rem;
  border-radius: 999px;
  border: 1px solid rgba(79, 140, 255, 0.18);
  background: rgba(255, 255, 255, 0.03);
  display: grid;
  place-items: center;
}

.cert-chevron::before {
  content: "";
  width: 0.46rem;
  height: 0.46rem;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg) translateY(-1px);
  transition: transform var(--transition);
}

.cert-card.is-open .cert-chevron::before {
  transform: rotate(-135deg) translateX(-1px);
}

.cert-status-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
  flex-wrap: wrap;
}

.cert-status {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-family: var(--mono);
  font-size: 0.65rem;
  color: var(--success);
  background: var(--success-dim);
  border: 1px solid rgba(47, 191, 113, 0.24);
  padding: 0.24rem 0.62rem;
  border-radius: 100px;
  width: fit-content;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.cert-status::before {
  content: "\2713";
  font-size: 0.6rem;
}

.cert-card-certified .cert-status {
  color: var(--success);
  border-color: rgba(47, 191, 113, 0.3);
  background: rgba(47, 191, 113, 0.14);
}

.cert-card-completed .cert-status {
  color: var(--success);
}

.cert-status.cert-progress {
  color: var(--warning);
  border: 1px solid rgba(211, 163, 95, 0.34);
  background: var(--warning-dim);
}

.cert-status.cert-progress::before {
  content: "\23F3";
}

.cert-expand-label {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  color: var(--text3);
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.cert-summary {
  margin: 0;
  color: var(--text2);
  line-height: 1.65;
  font-size: 0.92rem;
  max-width: 32ch;
}

.cert-id {
  font-family: var(--mono);
  font-size: 0.65rem;
  color: var(--text3);
  padding-bottom: 0.9rem;
  word-break: break-all;
}

.cert-panel-shell {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--transition);
}

.cert-card.is-open .cert-panel-shell {
  grid-template-rows: 1fr;
}

.cert-panel-inner {
  overflow: hidden;
}

.cert-panel-content {
  margin: 0 1.3rem;
  padding: 1rem 0 1.05rem;
  border-top: 1px solid rgba(79, 140, 255, 0.1);
  display: grid;
  gap: 1rem;
  opacity: 0;
  transform: translateY(-6px);
  transition: opacity var(--transition), transform var(--transition);
}

.cert-card.is-open .cert-panel-content {
  opacity: 1;
  transform: translateY(0);
}

.cert-panel-grid {
  display: grid;
  gap: 0.9rem;
}

.cert-panel-block {
  display: grid;
  gap: 0.35rem;
}

.cert-panel-label {
  font-family: var(--mono);
  font-size: 0.64rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
}

.cert-panel-block p {
  margin: 0;
  color: var(--text2);
  line-height: 1.7;
  font-size: 0.92rem;
}

.cert-skills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.cert-skill {
  padding: 0.28rem 0.62rem;
  border-radius: 999px;
  border: 1px solid rgba(79, 140, 255, 0.16);
  background: rgba(79, 140, 255, 0.08);
  color: var(--text2);
  font-family: var(--mono);
  font-size: 0.64rem;
  letter-spacing: 0.04em;
}

.cert-card-footer {
  padding: 0 1.3rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
}

.cert-verify {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.45rem 0.8rem;
  border-radius: 999px;
  border: 1px solid rgba(79, 140, 255, 0.18);
  background: rgba(255, 255, 255, 0.03);
  transition: gap var(--transition), border-color var(--transition), color var(--transition), background var(--transition);
  width: fit-content;
}

.cert-verify:hover {
  gap: 0.6rem;
  border-color: rgba(79, 140, 255, 0.34);
  background: rgba(79, 140, 255, 0.08);
}

.cert-verify:focus-visible {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(79, 140, 255, 0.16);
}

.cert-verify-muted {
  color: var(--warning);
  border-color: rgba(211, 163, 95, 0.28);
  background: var(--warning-dim);
  cursor: default;
}

.cert-verify-muted:hover {
  gap: 0.3rem;
  border-color: rgba(211, 163, 95, 0.28);
  background: var(--warning-dim);
}

/* BLOG PREVIEW */
#blog {
  padding-top: 0;
}

.posts-grid {
  align-items: stretch;
}

.post-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
  gap: 0.75rem;
}

#blog .post-card {
  min-height: 100%;
}

#blog .post-card:first-child {
  border-color: rgba(79, 140, 255, 0.22);
  box-shadow: 0 24px 40px rgba(3, 8, 15, 0.28);
}

#blog .post-card .post-title {
  max-width: 18ch;
}

#blog .post-card .post-excerpt {
  max-width: 34ch;
}

#blog .post-card .post-read-more {
  margin-top: auto;
}

#blog .post-card:hover .post-read-more {
  color: var(--text);
}

.view-all {
  text-align: center;
  margin-top: 2.5rem;
}

/* CONTACT */
#contact {
  border-top: 1px solid var(--border);
}

.contact-grid {
  display: grid;
  grid-template-columns: minmax(220px, 0.8fr) minmax(340px, 1.2fr);
  gap: 1rem;
}

.contact-card {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.012)),
    var(--surface);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  transition: all var(--transition);
  box-shadow: 0 16px 28px rgba(3, 8, 15, 0.2);
}

.contact-card > div:last-child {
  min-width: 0;
}

.contact-card:hover {
  border-color: rgba(79, 140, 255, 0.26);
  transform: translateY(-3px);
  box-shadow: 0 24px 38px rgba(3, 8, 15, 0.26);
}

.contact-icon {
  width: 40px;
  height: 40px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.contact-label {
  font-family: var(--mono);
  font-size: 0.65rem;
  color: var(--text3);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.2rem;
}

.contact-value {
  font-size: 0.875rem;
  line-height: 1.4;
  color: var(--text2);
  overflow-wrap: anywhere;
  transition: color var(--transition);
}

.contact-card:hover .contact-value {
  color: var(--text);
}

@media (prefers-reduced-motion: reduce) {
  section::before,
  section::after,
  .hero::before,
  .hero-particle-canvas,
  .cert-card,
  .cert-card::before,
  .cert-chevron::before,
  .cert-panel-shell,
  .cert-panel-content,
  .contact-card {
    transition: none;
  }
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .hero {
    grid-template-columns: 1fr;
    padding: 3rem 1.5rem;
    min-height: auto;
    gap: 3rem;
  }

  .hero-visual {
    order: -1;
  }

  .profile-card {
    width: 100%;
    max-width: 320px;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  section {
    padding: 4rem 1.5rem;
  }

  .about-aside {
    padding-left: 0;
    border-left: 0;
  }

  .about-fact {
    grid-template-columns: 1fr;
    gap: 0.45rem;
  }

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

  .cert-card-toggle,
  .cert-card-footer {
    padding-left: 1.05rem;
    padding-right: 1.05rem;
  }

  .cert-panel-content {
    margin-left: 1.05rem;
    margin-right: 1.05rem;
  }

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

@media (max-width: 640px) {
  .cert-grid {
    grid-template-columns: 1fr;
  }
}