/* ============================================================
   AARTUX — LAYOUT (layout.css)
   Navigation, hero, sections, grids, footer.
   ============================================================ */

/* ── Top Utility Bar ── */
.topbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 101;
  background: var(--c-surface);
  border-bottom: 1px solid var(--c-border);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  transition: transform 0.35s var(--ease), background 0.4s ease, border-color 0.3s;
}

.topbar.hidden {
  transform: translateY(-100%);
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  /*padding: 0.45rem 10%;*/
	padding: 0.45rem 0%;
  gap: 1rem;
}

/* Contact cluster (phone + email, tightly grouped) */
.topbar-contact {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.topbar-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--c-text-dim);
  transition: color 0.25s;
  white-space: nowrap;
}

.topbar-link:hover {
  color: var(--c-accent);
}

.topbar-link svg {
  flex-shrink: 0;
  opacity: 0.7;
}

.topbar-link:hover svg {
  opacity: 1;
}

/* Separator dot between clusters */
.topbar-sep {
  display: block;
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--c-border);
  flex-shrink: 0;
}

/* Social proof cluster (platforms, tightly grouped) */
.topbar-social {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.topbar-social-link {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  color: var(--c-text-dim);
  transition: color 0.25s;
  white-space: nowrap;
}

.topbar-social-link:hover {
  color: var(--c-accent);
}

.topbar-social-link svg {
  flex-shrink: 0;
}

/* Resume download CTA — slightly accented */
.topbar-resume {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  color: var(--c-accent);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: opacity 0.25s;
  white-space: nowrap;
}

.topbar-resume:hover {
  opacity: 0.75;
}

/* Mobile: collapse labels → icons only */
@media (max-width: 768px) {
  .topbar-social-link span,
  .topbar-resume span,
  .topbar-link span {
    display: none;
  }
  .topbar-inner {
    justify-content: center;
    gap: 1.25rem;
  }
  .topbar-contact,
  .topbar-social {
    gap: 0.85rem;
  }
}

@media (max-width: 420px) {
  .topbar {
    display: none;
  }
}


/* ── Navigation ── */
.nav {
  position: fixed;
  top: var(--topbar-h, 32px);
  left: 0;
  width: 100%;
  z-index: 100;
  padding: 1.25rem 10%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--c-nav-bg);
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s, background 0.4s ease, top 0.35s var(--ease);
}

/* When topbar scrolls away, nav slides to top */
.nav.topbar-hidden {
  top: 0;
}

.nav.scrolled {
  border-bottom-color: var(--c-border);
}

.nav-logo {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  cursor: pointer;
}

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

/*.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}*/

/*Custom-Start*/
.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  margin-left: auto;
}
/*Custom-End*/

.nav-links a {
  font-size: var(--f-caption);
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--c-text-dim);
  position: relative;
  transition: color 0.3s;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0;
  height: 1.5px;
  background: var(--c-accent);
  transition: width 0.4s var(--ease);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--c-text);
}

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

/* ── Nav actions (theme toggle + hamburger) ── */
/*.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}*/

/*custom-start*/
.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-left: 2rem;
  padding-left: 2rem;
  border-left: 1px solid var(--c-border);
}
/*custom-End*/
/* ── Theme toggle button ── */
.theme-toggle {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1.5px solid var(--c-border);
  background: var(--c-surface);
  color: var(--c-text-dim);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.3s, color 0.3s, transform 0.3s var(--ease), background 0.3s;
  position: relative;
  overflow: hidden;
  flex-shrink: 0;
}

.theme-toggle:hover {
  border-color: var(--c-accent);
  color: var(--c-accent);
  transform: scale(1.05);
}

.theme-toggle svg {
  width: 18px;
  height: 18px;
  transition: transform 0.5s var(--ease), opacity 0.3s;
  position: absolute;
}

.theme-toggle .icon-sun {
  opacity: 0;
  transform: rotate(-90deg) scale(0.5);
}

.theme-toggle .icon-moon {
  opacity: 1;
  transform: rotate(0deg) scale(1);
}

[data-theme="light"] .theme-toggle .icon-sun {
  opacity: 1;
  transform: rotate(0deg) scale(1);
}

[data-theme="light"] .theme-toggle .icon-moon {
  opacity: 0;
  transform: rotate(90deg) scale(0.5);
}

/* Mobile toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  z-index: 201;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--c-text);
  transition: transform 0.3s, opacity 0.3s;
}

.nav-toggle.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

.nav-overlay {
  position: fixed;
  top: 0; right: 0; bottom: 0; left: 0;
  background: var(--c-overlay-light);
  z-index: 149;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s;
}

.nav-overlay.open {
  opacity: 1;
  pointer-events: all;
}

@media (max-width: 768px) {
  .nav-toggle { display: flex; }

  .nav-links {
    position: fixed;
    top: 0; right: -100%;
    width: 70%;
    max-width: 320px;
    height: 100vh;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    background: var(--c-bg);
    transition: right 0.5s var(--ease), background 0.4s ease;
    z-index: 200;
    border-left: 1px solid var(--c-border);
  }

  .nav-links.open { right: 0; }
  .nav-links a    { font-size: 1.25rem; }

  /* Nav sits at top on mobile (topbar is icon-only or hidden) */
  .nav {
    top: var(--topbar-h, 28px);
  }
}

@media (max-width: 420px) {
  /* Topbar is hidden, nav goes to top */
  .nav {
    top: 0 !important;
  }
}


/* ── Hero ── */
/*.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding-top: 8rem;
  }*/
/*padding-bottom: 4rem;*/
.hero {
  min-height: auto;
  display: flex;
  align-items: center;
  position: relative;
  padding-top: 8rem;
  padding-bottom: 2rem;
}
/*==============*/
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: var(--s-gap);
}

.hero h1 {
  font-size: var(--f-h1);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  max-width: 90%;
}

.hero h1 em {
  font-style: normal;
  color: var(--c-accent);
  display: inline;
}

.hero-sub {
  margin-top: 1.5rem;
  font-size: clamp(1rem, 0.9rem + 0.5vw, 1.25rem);
  color: var(--c-text-dim);
  max-width: 90%;
  line-height: 1.8;
}

.hero-cta {
  margin-top: 3.5rem;
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* ── Hero Certifications (card style) ── */
.hero-certs {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 2rem;
}

.hero-certs-label {
  font-size: var(--f-small);
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c-accent);
}

.hero-certs-badges {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

@media (max-width: 900px) {
  .hero-certs { align-items: center; }
  .hero-certs-badges { justify-content: center; }
}

/* Hero certification badges */
.hero-badges {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 2rem;
}

.hero-badges a {
  display: block;
  width: clamp(56px, 6vw, 80px);
  height: clamp(56px, 6vw, 80px);
  transition: transform 0.3s var(--ease);
}

.hero-badges a:hover {
  transform: scale(1.1);
}

.hero-badges img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  border-radius: 50%;
  filter: drop-shadow(0 4px 12px var(--c-shadow-soft));
}

.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

@media (max-width: 900px) {
  .hero-grid  { grid-template-columns: 1fr; text-align: center; }
  .hero-sub   { margin-left: auto; margin-right: auto; }
  .hero-badges{ justify-content: center; }
  .hero-cta   { justify-content: center; }
  .hero-visual{ margin-top: 3rem; }
}


/* ── Certifications strip ── */
.certifications {
  border-bottom: 1px solid var(--c-border);
  padding: 1.5rem 0;
}

.certifications-inner {
  display: flex;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.certifications-label {
  font-size: var(--f-small);
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c-accent);
  white-space: nowrap;
}

.certifications-badges {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: nowrap;
}

.cert-badge {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 1rem;
  flex-shrink: 0;
  border-radius: 12px;
  border: 1px solid var(--c-border);
  background: var(--c-surface);
  transition: border-color 0.3s var(--ease), transform 0.3s var(--ease), background 0.3s;
  text-decoration: none;
}

.cert-badge:hover {
  border-color: var(--c-accent);
  transform: translateY(-2px);
}

.cert-badge-icon {
  flex-shrink: 0;
  display: flex;
  width: 40px;
  height: 40px;
}

.cert-badge-icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  border-radius: 50%;
}

.cert-badge-text {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}

.cert-badge-text strong {
  font-size: 0.9rem;
  font-weight: 800;
  color: var(--c-text);
  letter-spacing: 0.04em;
}

.cert-badge-text span {
  font-size: 0.7rem;
  color: var(--c-text-dim);
  line-height: 1.3;
}

.cert-badge-org {
  font-size: 0.65rem;
  font-weight: 700;
  color: var(--c-accent);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.2rem 0.5rem;
  border: 1px solid var(--c-accent-dim);
  border-radius: 6px;
  white-space: nowrap;
}

.cert-divider {
  width: 1px;
  height: 32px;
  background: var(--c-border);
}

.cert-verify {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--c-text-dim);
  transition: color 0.3s;
  margin-left: auto;
  white-space: nowrap;
}

.cert-verify:hover {
  color: var(--c-accent);
}

@media (max-width: 768px) {
  .certifications-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }
  .certifications-badges {
    gap: 1rem;
  }
  .cert-divider { display: none; }
  .cert-verify  { margin-left: 0; }
}


/* ── About ── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--s-gap);
  align-items: start;
}

.about-text p {
  color: var(--c-text-dim);
  margin-bottom: 1.25rem;
}

.about-text p:first-of-type {
  color: var(--c-text);
  font-size: 1.1em;
}

.about-values {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

@media (max-width: 900px) { .about-grid   { grid-template-columns: 1fr; } .about-values { margin-top: 2rem; } }
@media (max-width: 500px) { .about-values { grid-template-columns: 1fr; } }


/* ── Works grid ── */
.works-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

@media (max-width: 900px) { .works-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 550px) { .works-grid { grid-template-columns: 1fr; } }


/* ── Expertise ── */
.expertise-list {
  width: 100%;
}

.expertise-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.75rem 0;
  border-bottom: 1px solid var(--c-border);
  cursor: default;
  transition: padding-left 0.4s var(--ease);
}

.expertise-item:hover {
  padding-left: 1rem;
}

.expertise-item h3 {
  font-size: clamp(1.25rem, 1rem + 1vw, 1.75rem);
  font-weight: 600;
}

.expertise-item p {
  font-size: var(--f-small);
  color: var(--c-text-dim);
  max-width: 50%;
  text-align: right;
}

.expertise-num {
  font-size: var(--f-small);
  font-weight: 700;
  color: var(--c-accent);
  margin-right: 1.5rem;
  font-variant-numeric: tabular-nums;
}

@media (max-width: 700px) {
  .expertise-item { flex-direction: column; align-items: flex-start; gap: 0.5rem; }
  .expertise-item p { text-align: left; max-width: 100%; }
}


/* ── Marquee ── */
.marquee {
  overflow: hidden;
  border-top: 1px solid var(--c-border);
  border-bottom: 1px solid var(--c-border);
  padding: 1.5rem 0;
}

.marquee-inner {
  display: flex;
  gap: 3rem;
  width: max-content;
}

.marquee-inner span {
  font-size: clamp(1rem, 0.8rem + 1vw, 1.5rem);
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  white-space: nowrap;
  color: var(--c-text-dim);
}

.marquee-inner span .dot {
  display: inline-block;
  width: 8px; height: 8px;
  background: var(--c-accent);
  border-radius: 50%;
  margin: 0 1.5rem;
  vertical-align: middle;
}


/* ── Contact ── */
.contact-subtitle {
  color: var(--c-text-dim);
  max-width: 90%;
  line-height: 1.8;
}

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

.contact-info h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
}

.contact-link-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--c-border);
  color: var(--c-text-dim);
  transition: color 0.3s, padding-left 0.3s var(--ease);
  cursor: pointer;
}

.contact-link-item:hover {
  color: var(--c-text);
  padding-left: 0.5rem;
}

.contact-link-item svg { flex-shrink: 0; }
.contact-link-item span{ font-size: var(--f-small); font-weight: 500; }

.contact-socials {
  display: flex;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.social-btn {
  width: 44px; height: 44px;
  border-radius: 50%;
  border: 1.5px solid var(--c-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--c-text-dim);
  transition: border-color 0.3s, color 0.3s, transform 0.3s var(--ease);
  cursor: pointer;
}

.social-btn:hover {
  border-color: var(--c-accent);
  color: var(--c-accent);
  transform: translateY(-2px);
}

/* Form */
.contact-form { display: flex; flex-direction: column; gap: 1rem; }
.form-row     { display: flex; gap: 1rem; }
.form-group   { flex: 1; display: flex; flex-direction: column; gap: 0.4rem; }

.form-group label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--c-text-dim);
}

.form-group input,
.form-group textarea,
.form-group select {
  background: var(--c-bg);
  border: 1.5px solid var(--c-border);
  border-radius: 12px;
  padding: 0.85rem 1rem;
  color: var(--c-text);
  font-family: var(--f-family);
  font-size: var(--f-small);
  outline: none;
  transition: border-color 0.3s, background 0.3s;
  resize: vertical;
}

.form-group select {
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%23888888' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--c-accent);
}

.form-group select option { background: var(--c-bg); color: var(--c-text); }
.form-group textarea      { min-height: 120px; }
.form-submit              { margin-top: 0.5rem; align-self: flex-start; }

@media (max-width: 700px) {
  .contact-grid { grid-template-columns: 1fr; }
  .form-row     { flex-direction: column; }
}


/* ── Footer ── */
footer {
  border-top: 1px solid var(--c-border);
  padding: 2rem 10%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: var(--f-small);
  color: var(--c-text-dim);
}

footer a {
  transition: color 0.3s;
}

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

/* ── Light theme fine-tuning ── */
[data-theme="light"] .form-group select {
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%236e6e6e' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
}

[data-theme="light"] .btn-primary {
  color: #ffffff;
}

[data-theme="light"] .modal-cta a.btn-primary {
  color: #ffffff;
}

[data-theme="light"] .filter-tab.active {
  color: #ffffff;
}

/* Light theme: ensure work card text readability on light gradient */
[data-theme="light"] .work-info {
  background: linear-gradient(to top, var(--c-surface) 30%, transparent);
}

[data-theme="light"] .work-badge {
  color: var(--c-text);
  border: 1px solid var(--c-border);
}

/* Light theme: softer shadow on elevated surfaces */
[data-theme="light"] .value-card:hover,
[data-theme="light"] .cert-badge:hover,
[data-theme="light"] .work-card:hover {
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
}

/* Light theme: input fields slightly recessed */
[data-theme="light"] .form-group input,
[data-theme="light"] .form-group textarea,
[data-theme="light"] .form-group select {
  background: #f0eeea;
}

[data-theme="light"] .form-group input:focus,
[data-theme="light"] .form-group textarea:focus,
[data-theme="light"] .form-group select:focus {
  background: var(--c-surface);
}


/* ============================================================
   STAFF-LEVEL PORTFOLIO — V10 COMPONENTS
   ============================================================ */

/* ── Hero Kicker ── */
.hero-kicker {
  font-size: var(--f-caption);
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-accent);
  margin-bottom: var(--sp-4);
}

/* ── Hero Proof Blockquote ── */
.hero-proof {
  margin-top: var(--sp-4);
  padding: var(--sp-3) var(--sp-4);
  border-left: 3px solid var(--c-accent);
  background: var(--c-accent-ghost);
  border-radius: 0 12px 12px 0;
  max-width: 85%;
}
.hero-proof p { font-size: var(--f-body); color: var(--c-text-dim); line-height: var(--lh-relaxed); font-style: italic; margin: 0; }
.hero-proof cite { display: block; margin-top: var(--sp-2); font-size: var(--f-caption); font-weight: 600; color: var(--c-accent); font-style: normal; }


/* ── Work Card: Productized View ── */
.work-problem { font-size: var(--f-caption); color: var(--c-text-dim); margin-top: var(--sp-1); line-height: var(--lh-body); }
.work-outcome { font-size: var(--f-caption); color: var(--c-accent); margin-top: var(--sp-1); }
.work-outcome strong { color: var(--c-accent); font-weight: 800; }
.work-role { display: block; font-size: 0.65rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--c-text-dim); margin-top: var(--sp-2); opacity: 0.7; }


/* ── Case Study Preview Grid ── */
.cs-preview-grid {
  display: flex;
  flex-direction: column;
  gap: var(--sp-5);
}

.cs-preview {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-5);
  align-items: center;
  padding: var(--sp-5);
  border: 1px solid var(--c-border);
  border-radius: 20px;
  background: var(--c-surface);
  text-decoration: none;
  color: inherit;
  transition: border-color 0.4s, transform 0.4s var(--ease), background 0.3s;
}
.cs-preview:hover { border-color: var(--c-accent); transform: translateY(-4px); }

.cs-preview-image { border-radius: 12px; overflow: hidden; }
.cs-preview-image img { width: 100%; height: auto; display: block; }

.cs-preview-content .work-tag { margin-bottom: var(--sp-2); }
.cs-preview-content h3 { font-size: var(--f-h4); font-weight: 800; line-height: var(--lh-heading); margin-bottom: var(--sp-2); }
.cs-preview-content p { font-size: var(--f-body); color: var(--c-text-dim); line-height: var(--lh-relaxed); margin-bottom: var(--sp-3); }
.cs-preview-cta { font-size: var(--f-caption); font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--c-accent); }

@media (max-width: 768px) {
  .cs-preview { grid-template-columns: 1fr; }
}


/* ============================================================
   CASE STUDY PAGE STYLES
   ============================================================ */
.cs-page { padding-top: 6rem; }

.cs-hero {
  padding: var(--sp-8) 0 var(--sp-6);
  border-bottom: 1px solid var(--c-border);
}
.cs-back {
  display: inline-block;
  font-size: var(--f-caption);
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--c-text-dim);
  margin-bottom: var(--sp-4);
  transition: color 0.3s;
}
.cs-back:hover { color: var(--c-accent); }

.cs-hero h1 {
  font-size: var(--f-h1);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: var(--lh-tight);
  margin-top: var(--sp-2);
  margin-bottom: var(--sp-3);
}

.cs-impact-line {
  font-size: var(--f-h5);
  color: var(--c-text-dim);
  line-height: var(--lh-body);
  max-width: 90%;
  margin-bottom: var(--sp-5);
}

.cs-meta-row {
  display: flex;
  gap: var(--sp-6);
  flex-wrap: wrap;
}
.cs-meta-row div { display: flex; flex-direction: column; gap: var(--sp-1); }
.cs-meta-row strong { font-size: var(--f-caption); font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--c-accent); }
.cs-meta-row span { font-size: var(--f-body); color: var(--c-text-dim); }

/* CS Body */
.cs-body { padding: var(--sp-6) 0 var(--sp-8); }

.cs-section { margin-bottom: var(--sp-7); }
.cs-section h2 { font-size: var(--f-h3); font-weight: 800; margin-bottom: var(--sp-4); line-height: var(--lh-heading); }
.cs-section h3 { font-size: var(--f-h5); font-weight: 700; margin-top: var(--sp-4); margin-bottom: var(--sp-2); color: var(--c-accent); }
.cs-section h4 { font-size: var(--f-body-lg); font-weight: 700; margin-bottom: var(--sp-2); }
.cs-section p { font-size: var(--f-body-lg); color: var(--c-text-dim); line-height: var(--lh-relaxed); margin-bottom: var(--sp-3); max-width: 95%; }

.cs-lead { font-size: var(--f-h5); color: var(--c-text); font-weight: 500; line-height: var(--lh-body); margin-bottom: var(--sp-5); }

.cs-callout {
  font-size: var(--f-h4);
  font-weight: 700;
  font-style: italic;
  color: var(--c-accent);
  border-left: 3px solid var(--c-accent);
  padding: var(--sp-3) var(--sp-4);
  margin: var(--sp-4) 0;
  background: var(--c-accent-ghost);
  border-radius: 0 12px 12px 0;
}

/* Strategy/Solution grids */
.cs-strategy-grid, .cs-solution-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--sp-4);
  margin: var(--sp-4) 0;
}
.cs-strategy-grid > div, .cs-solution-grid > div {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: 12px;
  padding: var(--sp-4);
  transition: border-color 0.3s;
}
.cs-strategy-grid > div:hover, .cs-solution-grid > div:hover { border-color: var(--c-accent); }
.cs-strategy-grid h4, .cs-solution-grid h4 { font-size: var(--f-body); font-weight: 700; margin-bottom: var(--sp-2); color: var(--c-text); }
.cs-strategy-grid p, .cs-solution-grid p { font-size: var(--f-body); color: var(--c-text-dim); line-height: var(--lh-body); margin: 0; }

.cs-full-image {
  width: 100%;
  border-radius: 16px;
  border: 1px solid var(--c-border);
  margin: var(--sp-5) 0;
}

/* Metrics grid */
.cs-metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--sp-4);
  margin: var(--sp-4) 0;
}
.metric { display: flex; flex-direction: column; gap: var(--sp-1); }
.metric strong { font-size: var(--f-h2); font-weight: 800; color: var(--c-accent); line-height: var(--lh-tight); letter-spacing: -0.02em; }
.metric span { font-size: var(--f-caption); font-weight: 500; color: var(--c-text-dim); }

/* Embedded testimonial */
.cs-testimonial {
  border: 1px solid var(--c-border);
  border-radius: 16px;
  padding: var(--sp-5);
  margin: var(--sp-6) 0;
  background: var(--c-surface);
}
.cs-testimonial p { font-size: var(--f-body-lg); font-style: italic; color: var(--c-text-dim); line-height: var(--lh-relaxed); margin: 0 0 var(--sp-3); }
.cs-testimonial cite { font-size: var(--f-caption); font-weight: 600; color: var(--c-accent); font-style: normal; }

/* CS nav footer */
.cs-nav-footer {
  display: flex;
  justify-content: space-between;
  gap: var(--sp-3);
  padding-top: var(--sp-5);
  border-top: 1px solid var(--c-border);
  margin-top: var(--sp-6);
  flex-wrap: wrap;
}


/* ============================================================
   INSIGHTS PAGE
   ============================================================ */
.insights-page { padding-top: 5rem; }

.insight-article {
  padding: var(--sp-6) 0;
  border-bottom: 1px solid var(--c-border);
}
.insight-article:last-child { border-bottom: none; }

.insight-category {
  display: inline-block;
  font-size: var(--f-caption);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-accent);
  margin-bottom: var(--sp-2);
}

.insight-article h2 {
  font-size: var(--f-h3);
  font-weight: 800;
  line-height: var(--lh-heading);
  margin-bottom: var(--sp-4);
}

.insight-article p {
  font-size: var(--f-body-lg);
  color: var(--c-text-dim);
  line-height: var(--lh-relaxed);
  margin-bottom: var(--sp-3);
  max-width: 95%;
}


/* ── Light theme overrides ── */
[data-theme="light"] .cs-preview:hover { box-shadow: 0 8px 32px rgba(0,0,0,0.06); }
[data-theme="light"] .hero-proof { background: rgba(74,133,0,0.06); }
[data-theme="light"] .cs-callout { background: rgba(74,133,0,0.06); }
[data-theme="light"] .cs-full-image { box-shadow: 0 4px 24px rgba(0,0,0,0.06); }

/* ── Sub-page nav (no topbar, sits at top) ── */
.nav--cs {
  top: 0;
}


/* ============================================================
   LARGE SCREEN RESPONSIVE (1600px – 3840px)
   Content = 80% viewport width, 10% margins each side
   ============================================================ */
@media (min-width: 1600px) {
  .container       { width: 80%; }
  .container--narrow { width: 65%; }
  .nav             { padding-left: 10%; padding-right: 10%; }
  footer           { padding-left: 10%; padding-right: 10%; }

  .hero h1         { font-size: clamp(2.75rem, 2rem + 2vw, 4rem); }
  .hero-grid       { gap: 4rem; }
  .works-grid      { gap: 2rem; }
  .about-grid      { gap: 3.5rem; }
  .contact-grid    { gap: 4rem; }

  .section-title   { font-size: clamp(2rem, 1.5rem + 1.5vw, 3rem); }

  .cs-strategy-grid,
  .cs-solution-grid { gap: 2rem; }
  .cs-metrics-grid  { gap: 2.5rem; }
}

@media (min-width: 2560px) {
  .hero h1         { font-size: clamp(3rem, 2rem + 1.5vw, 4.5rem); }
  .hero-sub        { font-size: clamp(1.125rem, 1rem + 0.3vw, 1.5rem); }
  .section-title   { font-size: clamp(2.25rem, 1.75rem + 1vw, 3.25rem); }

  .works-grid      { grid-template-columns: repeat(3, 1fr); gap: 2.5rem; }
  .about-values    { gap: 2rem; }
}

@media (min-width: 3200px) {
  .container       { width: 80%; }
  .hero h1         { font-size: 4rem; }
  .hero-sub        { font-size: 1.375rem; line-height: 1.8; }
  body             { font-size: 1.125rem; }
}


/* ============================================================
   JOURNEY: TIMELINE + ACCORDION HYBRID
   ============================================================ */
.journey-intro {
  max-width: 90%;
  font-size: var(--f-body-lg, 1rem);
  line-height: 1.75;
  margin-bottom: 3rem;
}

.journey-intro strong {
  color: var(--c-accent);
  font-weight: 600;
}

.timeline-accordion {
  position: relative;
  padding-left: 3rem;
}

/* Vertical timeline line */
.timeline-accordion::before {
  content: '';
  position: absolute;
  left: 7px;
  top: 0.5rem;
  bottom: 0.5rem;
  width: 1px;
  background: linear-gradient(to bottom, var(--c-border), var(--c-accent-dim, #4a5e00) 40%, var(--c-accent-dim, #4a5e00) 60%, var(--c-accent));
}

/* Each timeline item */
.timeline-item {
  position: relative;
  display: flex;
  gap: 0;
  padding-bottom: 0;
}

/* Timeline marker (dot + line segment) */
.timeline-marker {
  position: absolute;
  left: -3rem;
  top: 1.35rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  z-index: 2;
}

.timeline-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 2px solid var(--c-accent-dim, #4a5e00);
  background: var(--c-bg);
  flex-shrink: 0;
}

.timeline-dot--active {
  border-color: var(--c-accent);
  background: var(--c-accent);
  box-shadow: 0 0 16px rgba(200, 255, 0, 0.45);
  animation: timelinePulse 2.5s ease-in-out infinite;
}

@keyframes timelinePulse {
  0%, 100% { box-shadow: 0 0 16px rgba(200, 255, 0, 0.45); }
  50%      { box-shadow: 0 0 28px rgba(200, 255, 0, 0.7); }
}

.timeline-line {
  width: 1px;
  flex: 1;
  background: transparent;
}

/* Timeline content area */
.timeline-content {
  flex: 1;
  border-bottom: 1px solid var(--c-border);
}

.timeline-item:last-child .timeline-content {
  border-bottom: none;
}

/* Accordion trigger — redesigned for timeline */
.timeline-content .accordion-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem 0;
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--f-family);
  color: var(--c-text);
  text-align: left;
  transition: padding-left 0.3s var(--ease);
}

.timeline-content .accordion-trigger:hover {
  padding-left: 0.5rem;
}

.accordion-header {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem 1.25rem;
  flex: 1;
}

.accordion-year {
  font-size: var(--f-caption, 0.75rem);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-accent);
  white-space: nowrap;
  min-width: 6.5rem;
}

.accordion-chapter-label {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--c-accent);
  opacity: 0.6;
}

.accordion-title {
  font-size: var(--f-h5, 1.1875rem);
  font-weight: 700;
  flex: 1;
  min-width: 200px;
}

.accordion-company {
  font-size: var(--f-body, 0.875rem);
  font-weight: 600;
  color: var(--c-text-dim);
  white-space: nowrap;
  padding: 0.2rem 0.75rem;
  border: 1px solid var(--c-border);
  border-radius: 40px;
  transition: border-color 0.3s, color 0.3s;
}

.accordion-trigger:hover .accordion-company {
  border-color: var(--c-accent);
  color: var(--c-accent);
}

.accordion-trigger[aria-expanded="true"] .accordion-company {
  border-color: var(--c-accent);
  color: var(--c-accent);
}

.accordion-icon {
  flex-shrink: 0;
  color: var(--c-text-dim);
  transition: transform 0.35s var(--ease), color 0.3s;
}

.accordion-trigger[aria-expanded="true"] .accordion-icon {
  transform: rotate(180deg);
  color: var(--c-accent);
}

/* Accordion panel */
.accordion-panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s var(--ease);
  padding: 0 0 0 0;
}

.accordion-panel[hidden] {
  display: block;
  max-height: 0;
}

.accordion-panel:not([hidden]) {
  padding-bottom: 1.5rem;
}

.accordion-panel p {
  font-size: var(--f-body, 0.875rem);
  color: var(--c-text-dim);
  line-height: var(--lh-relaxed, 1.75);
  max-width: 90%;
  margin-bottom: 0.75rem;
}

.accordion-panel p strong {
  color: var(--c-text);
  font-weight: 600;
}

.accordion-panel p em {
  color: var(--c-text);
  font-style: italic;
}

.accordion-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.accordion-tags span {
  padding: 0.25rem 0.75rem;
  border-radius: 40px;
  border: 1px solid var(--c-border);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--c-text-dim);
  transition: border-color 0.3s, color 0.3s;
}

.accordion-trigger[aria-expanded="true"] ~ .accordion-panel .accordion-tags span {
  border-color: rgba(200, 255, 0, 0.2);
  color: var(--c-text);
}

/* Journey credentials */
.journey-credentials {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--c-border);
}

.journey-credentials-label {
  font-size: var(--f-caption, 0.75rem);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-text-dim);
  margin-bottom: 1.5rem;
}

.journey-credentials-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.journey-credential {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: 12px;
  padding: 1.25rem;
  transition: border-color 0.3s;
}

.journey-credential:hover { border-color: var(--c-accent); }
.journey-credential strong { display: block; font-size: 1.1rem; font-weight: 800; color: var(--c-accent); margin-bottom: 0.35rem; letter-spacing: 0.04em; }
.journey-credential span { font-size: 0.78rem; color: var(--c-text-dim); line-height: 1.5; }

/* Responsive: Journey timeline */
@media (max-width: 768px) {
  .timeline-accordion { padding-left: 2rem; }
  .timeline-accordion::before { left: 6px; }
  .timeline-marker { left: -2rem; }

  .accordion-header {
    flex-direction: column;
    gap: 0.25rem;
  }

  .accordion-title { min-width: auto; }
  .accordion-company { align-self: flex-start; }
  .accordion-panel p { max-width: 100%; }

  .journey-credentials-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 480px) {
  .journey-credentials-grid { grid-template-columns: 1fr; }
}


/* ============================================================
   TESTIMONIAL CARDS
   ============================================================ */
.testimonials-card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.testimonial-card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: 16px;
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: border-color 0.4s, transform 0.4s var(--ease);
}

.testimonial-card:hover {
  border-color: var(--c-accent);
  transform: translateY(-4px);
}

.testimonial-card-quote {
  font-size: var(--f-body, 0.875rem);
  color: var(--c-text-dim);
  line-height: 1.75;
  font-style: italic;
  margin-bottom: 1.5rem;
}

.testimonial-card-footer {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--c-border);
}

.testimonial-card-avatar {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--c-accent-ghost);
  border: 2px solid var(--c-accent);
  display: flex; align-items: center; justify-content: center;
  font-weight: 800;
  font-size: var(--f-body, 0.875rem);
  color: var(--c-accent);
  flex-shrink: 0;
}

.testimonial-card-footer strong { display: block; font-size: var(--f-body, 0.875rem); font-weight: 700; }
.testimonial-card-footer span { display: block; font-size: var(--f-caption, 0.75rem); color: var(--c-text-dim); margin-top: 2px; }

@media (max-width: 900px) { .testimonials-card-grid { grid-template-columns: 1fr; } }


/* ============================================================
   CASE STUDY: BREADCRUMBS + QUICK LINKS
   ============================================================ */
.cs-breadcrumbs {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--f-caption, 0.75rem);
  color: var(--c-text-dim);
  margin-bottom: 1.5rem;
}

.cs-breadcrumbs a {
  color: var(--c-text-dim);
  transition: color 0.3s;
}

.cs-breadcrumbs a:hover { color: var(--c-accent); }

.cs-breadcrumbs .cs-crumb-sep { color: var(--c-border); }

.cs-quick-links {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}

.cs-quick-link {
  font-size: var(--f-caption, 0.75rem);
  font-weight: 600;
  padding: 0.4rem 0.9rem;
  border-radius: 40px;
  border: 1px solid var(--c-border);
  color: var(--c-text-dim);
  text-decoration: none;
  transition: border-color 0.3s, color 0.3s;
}

.cs-quick-link:hover { border-color: var(--c-accent); color: var(--c-accent); }
.cs-quick-link.active { background: var(--c-accent); color: var(--c-bg); border-color: var(--c-accent); }
[data-theme="light"] .cs-quick-link.active { color: #fff; }