/* ==============================================
   COMPONENTS — Navigation, Buttons, Tags, Modals
   ============================================== */

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-sticky);
  background: rgba(24, 8, 16, 0.88);
  backdrop-filter: blur(14px) saturate(160%);
  -webkit-backdrop-filter: blur(14px) saturate(160%);
  border-bottom: 1px solid transparent;
  transition: border-color var(--duration-normal) var(--ease-out);
}

@media (prefers-color-scheme: dark) {
  .nav {
    background: rgba(16, 6, 8, 0.9);
  }
}

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

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
}

.nav__logo {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: var(--text-base);
  font-weight: 800;
  letter-spacing: var(--tracking-normal);
  color: var(--text-primary);
  transition: color var(--duration-fast) var(--ease-out);
}

.nav__logo:hover {
  color: var(--cream);
}

.nav__logo-dot {
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  background: var(--accent-vivid);
  flex-shrink: 0;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.nav__link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--duration-fast) var(--ease-out);
  position: relative;
  letter-spacing: var(--tracking-wide);
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--accent-vivid);
  transition: width var(--duration-normal) var(--ease-out);
}

.nav__link:hover,
.nav__link--active {
  color: var(--text-primary);
}

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

/* CTA — editorial text link with arrow, not a pill */
.nav__link--cta {
  color: var(--text-primary);
  font-weight: 600;
  border: none;
  background: none;
  padding: 0;
}

.nav__link--cta::after { display: none; }

.nav__arrow {
  display: inline-block;
  transition: transform var(--duration-fast) var(--ease-out);
  margin-left: var(--space-1);
}

.nav__link--cta:hover .nav__arrow {
  transform: translateX(3px);
}

.nav__link--cta:hover {
  color: var(--accent-vivid);
}

/* Mobile Nav Toggle */
.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  padding: 4px 0;
}

.nav__toggle-bar {
  height: 2px;
  background: var(--cream);
  border-radius: var(--radius-full);
  transition: transform 380ms cubic-bezier(0.34, 1.56, 0.64, 1),
              opacity 160ms var(--ease-out),
              width 380ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* Asymmetric widths — intentionally unequal */
.nav__toggle-bar:nth-child(1) { width: 100%; }
.nav__toggle-bar:nth-child(2) { width: 60%; }
.nav__toggle-bar:nth-child(3) { width: 80%; }

/* Open state — all bars snap to X */
.nav__toggle[aria-expanded="true"] .nav__toggle-bar:nth-child(1) {
  width: 100%;
  transform: translateY(7px) rotate(45deg);
}
.nav__toggle[aria-expanded="true"] .nav__toggle-bar:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.nav__toggle[aria-expanded="true"] .nav__toggle-bar:nth-child(3) {
  width: 100%;
  transform: translateY(-7px) rotate(-45deg);
}

.nav__overlay {
  display: none;
}

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

  .nav__overlay {
    display: flex;
    position: fixed;
    inset: 0;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: #100608;
    z-index: var(--z-overlay);
    transform: translateX(100%);
    transition: transform var(--duration-slow) var(--ease-out);
  }

  .nav__overlay--open {
    transform: translateX(0);
  }

  .nav__links {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-8);
  }

  .nav__link {
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: var(--tracking-tight);
  }

  .nav__link--cta {
    font-size: var(--text-xl);
    color: var(--accent-vivid);
  }

  .nav__link--cta::after { display: none; }
}


/* --- Buttons --- */

/* Editorial CTA — understated depth shift, not a shop button */
.btn--editorial {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-inverse);
  background: var(--cream);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-md);
  position: relative;
  overflow: hidden;
  letter-spacing: var(--tracking-wide);
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1),
              box-shadow 0.35s cubic-bezier(0.16, 1, 0.3, 1),
              background 0.35s var(--ease-out);
  box-shadow: 0 1px 3px rgba(10, 2, 6, 0.25),
              inset 0 1px 0 rgba(255, 255, 255, 0.35);
}

/* Directional shimmer — a blade of light passes left-to-right on hover */
.btn--editorial::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(
    105deg,
    transparent 20%,
    rgba(255, 255, 255, 0.22) 50%,
    transparent 80%
  );
  background-size: 200% 100%;
  background-position: 200% 0;
  transition: background-position 0.55s var(--ease-out);
  pointer-events: none;
}

.btn--editorial:hover::before {
  background-position: -60% 0;
}

/* Squeeze-then-lift: horizontal compression as it releases upward */
.btn--editorial:hover {
  background: #ede1cc;
  transform: translateY(-2px) scaleX(0.982);
  box-shadow: 0 6px 22px rgba(242, 235, 224, 0.12),
              0 2px 6px rgba(10, 2, 6, 0.18),
              inset 0 1px 0 rgba(255, 255, 255, 0.45);
  letter-spacing: calc(var(--tracking-wide) + 0.012em);
}

/* Press: reverse squeeze — widens slightly as it pushes down */
.btn--editorial:active {
  transform: translateY(1px) scaleX(1.006);
  box-shadow: 0 1px 3px rgba(10, 2, 6, 0.2),
              inset 0 2px 3px rgba(10, 2, 6, 0.07);
  transition-duration: 60ms;
}

.btn--editorial svg {
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.btn--editorial:hover svg {
  transform: translateX(3px);
}

/* ------------------------------------------------
   CTA PRIMARY — designed directional control
   A lightly bordered horizontal object with a
   contained circular arrow zone. The zone's SVG
   arrow begins pointing ↓ (rotate 90°) and
   transitions to ↘ (rotate 45°) on hover.
------------------------------------------------ */
.cta-primary {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 7px 7px 7px 18px;
  border: 1px solid rgba(110, 127, 184, 0.22);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.02);
  text-decoration: none;
  cursor: pointer;
  transition:
    border-color 220ms cubic-bezier(0.22, 1, 0.36, 1),
    background    220ms cubic-bezier(0.22, 1, 0.36, 1),
    transform     220ms cubic-bezier(0.22, 1, 0.36, 1);
}

.cta-primary:hover {
  border-color: rgba(110, 127, 184, 0.42);
  background: rgba(255, 255, 255, 0.035);
  transform: translateY(-1px);
}

.cta-primary:active {
  transform: translateY(0);
  transition-duration: 60ms;
}

/* Solo: bare directional mark — no container, no chrome.
   Just the SVG arrow with a diffuse blue glow. ↓ at rest, ↘ on hover. */
.cta-primary--solo {
  padding: 6px;
  border: none;
  background: none;
}

.cta-primary--solo:hover {
  background: none;
  border-color: transparent;
}

.cta-primary--solo svg {
  display: block;
  color: var(--accent-vivid);
  transform: rotate(90deg);
  filter: drop-shadow(0 0 5px rgba(49, 92, 255, 0.38));
  transition: transform 300ms cubic-bezier(0.34, 1.56, 0.64, 1),
              filter   220ms cubic-bezier(0.22, 1, 0.36, 1);
}

.cta-primary--solo:hover svg {
  transform: rotate(45deg);
  filter: drop-shadow(0 0 10px rgba(49, 92, 255, 0.70));
}

.cta-primary__label {
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.01em;
  white-space: nowrap;
}

/* Circular arrow container */
.cta-primary__zone {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(49, 92, 255, 0.12);
  border: 1px solid rgba(49, 92, 255, 0.28);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--accent-vivid);
  transition:
    background   220ms cubic-bezier(0.22, 1, 0.36, 1),
    border-color 220ms cubic-bezier(0.22, 1, 0.36, 1);
}

.cta-primary:hover .cta-primary__zone {
  background: rgba(49, 92, 255, 0.20);
  border-color: rgba(49, 92, 255, 0.52);
}

/* Arrow: rotate(90deg) at rest → reads as ↓; rotate(45deg) on hover → reads as ↘ */
.cta-primary__zone svg {
  transform: rotate(90deg);
  transition: transform 300ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

.cta-primary:hover .cta-primary__zone svg {
  transform: rotate(45deg);
}


/* ------------------------------------------------
   CTA SECONDARY — quieter directional
   Always-visible faint underline darkens on hover.
   Used for lower-priority hero action (About Me).
------------------------------------------------ */
.cta-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-secondary);
  letter-spacing: -0.005em;
  text-decoration: none;
  border-bottom: 1px solid rgba(110, 127, 184, 0.20);
  padding: 2px 0 4px;
  cursor: pointer;
  transition:
    color        200ms cubic-bezier(0.22, 1, 0.36, 1),
    border-color 200ms cubic-bezier(0.22, 1, 0.36, 1),
    transform    200ms cubic-bezier(0.22, 1, 0.36, 1);
}

.cta-secondary:hover {
  color: var(--text-primary);
  border-color: rgba(110, 127, 184, 0.52);
  transform: translateY(-1px);
}

.cta-secondary svg {
  color: var(--accent-muted);
  flex-shrink: 0;
  transition: transform 200ms cubic-bezier(0.22, 1, 0.36, 1);
}

.cta-secondary:hover svg {
  transform: translateX(3px);
}


/* ------------------------------------------------
   CTA READ — editorial inline action
   Label + extending rule + arrow. Rule grows from
   14px → 24px on hover (spring easing).
   Used for: Read case study, hello@ina.design, LinkedIn
------------------------------------------------ */
.cta-read {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: var(--tracking-wide);
  text-decoration: none;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px 0;
  transition: color 200ms cubic-bezier(0.22, 1, 0.36, 1);
}

.cta-read:hover {
  color: var(--text-primary);
}

/* Typographic rule bridge — extends toward arrow on hover */
.cta-read__rule {
  display: block;
  width: 14px;
  height: 1px;
  background: var(--accent-vivid);
  opacity: 0.50;
  flex-shrink: 0;
  transition:
    width   0.40s cubic-bezier(0.34, 1.56, 0.64, 1),
    opacity 0.40s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.cta-read:hover .cta-read__rule {
  width: 24px;
  opacity: 0.85;
}

.cta-read svg {
  flex-shrink: 0;
  color: var(--accent-muted);
  transition: none;
}

.cta-read:hover svg {
  animation: arrowLaunch 0.44s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

/* Larger variant for contact email */
.cta-read--lg {
  font-size: var(--text-base);
  font-weight: 600;
  letter-spacing: -0.01em;
  gap: var(--space-3);
  color: var(--text-primary);
}

.cta-read--lg:hover {
  color: var(--cream);
}

.cta-read--lg .cta-read__rule {
  height: 1.5px;
}

/* Legacy button compat for modals */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 600;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-sm);
  transition: all var(--duration-fast) var(--ease-out);
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}

/* ------------------------------------------------
   PRIMARY BUTTON — cobalt pill, tactile inner structure
   Used for: View Case Studies, email CTA
------------------------------------------------ */
.btn--primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  height: 48px;
  padding: 0 20px;
  border-radius: 999px;
  background: #315CFF;
  color: #F5F2EC;
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: -0.01em;
  position: relative;
  overflow: hidden;
  white-space: nowrap;
  /* 1px inner border + top highlight + subtle shadow */
  box-shadow:
    inset 0 0 0 1px rgba(220, 228, 255, 0.22),
    inset 0 1px 0 rgba(220, 228, 255, 0.42),
    0 2px 8px rgba(49, 92, 255, 0.28),
    0 1px 2px rgba(0, 0, 0, 0.18);
  transition:
    transform 220ms cubic-bezier(0.22, 1, 0.36, 1),
    box-shadow 220ms cubic-bezier(0.22, 1, 0.36, 1),
    background 220ms cubic-bezier(0.22, 1, 0.36, 1);
}

/* Inset capsule highlight — top-left light fades to transparent bottom-right */
.btn--primary::before {
  content: '';
  position: absolute;
  inset: 2px;
  border-radius: 999px;
  background: linear-gradient(
    155deg,
    rgba(220, 228, 255, 0.22) 0%,
    rgba(220, 228, 255, 0.05) 40%,
    transparent 68%
  );
  pointer-events: none;
}

.btn--primary:hover {
  transform: translateY(-1px);
  box-shadow:
    inset 0 0 0 1px rgba(220, 228, 255, 0.30),
    inset 0 1px 0 rgba(220, 228, 255, 0.58),
    0 5px 16px rgba(49, 92, 255, 0.36),
    0 2px 4px rgba(0, 0, 0, 0.16);
}

.btn--primary:active {
  transform: translateY(0);
  background: #243FAE;
  box-shadow:
    inset 0 0 0 1px rgba(220, 228, 255, 0.14),
    0 1px 4px rgba(49, 92, 255, 0.22);
  transition-duration: 60ms;
}

.btn--primary svg {
  flex-shrink: 0;
  transition: transform 220ms cubic-bezier(0.22, 1, 0.36, 1);
}

.btn--primary:hover svg {
  transform: translateX(4px);
}

/* ------------------------------------------------
   SECONDARY BUTTON — dark ink, editorial, quieter
   Used for: About Me, lower-priority structured actions
   Shape detail: top-right corner is 14px (not 18px) — authored asymmetry
------------------------------------------------ */
.btn--secondary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  height: 48px;
  padding: 0 18px;
  border-radius: 18px 14px 18px 18px;
  background: rgba(22, 24, 29, 0.88);
  border: 1px solid rgba(110, 127, 184, 0.30);
  color: #F5F2EC;
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: -0.01em;
  position: relative;
  overflow: hidden;
  white-space: nowrap;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.28);
  transition:
    transform 220ms cubic-bezier(0.22, 1, 0.36, 1),
    border-color 220ms cubic-bezier(0.22, 1, 0.36, 1),
    background 220ms cubic-bezier(0.22, 1, 0.36, 1),
    box-shadow 220ms cubic-bezier(0.22, 1, 0.36, 1);
}

.btn--secondary:hover {
  transform: translateY(-1px);
  border-color: rgba(110, 127, 184, 0.56);
  background: rgba(28, 30, 38, 0.94);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.24);
}

.btn--secondary:active {
  transform: translateY(0);
  border-color: rgba(110, 127, 184, 0.18);
  transition-duration: 60ms;
}

.btn--secondary svg {
  flex-shrink: 0;
  transition: transform 220ms cubic-bezier(0.22, 1, 0.36, 1);
  color: var(--warm-muted);
}

.btn--secondary:hover svg {
  transform: translateX(3px);
}

.btn--lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
}

.btn__arrow {
  transition: transform var(--duration-fast) var(--ease-out);
}

.btn:hover .btn__arrow {
  transform: translateX(3px);
}

.btn:active {
  transform: scale(0.97);
}


/* --- Tags — editorial taxonomy (inside modals) --- */
.tag {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 500;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-sm);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
}

.tag--pink {
  background: var(--blush-dim);
  color: var(--blush);
  border: 1px solid rgba(161, 76, 104, 0.18);
}

.tag--blue {
  background: var(--accent-soft);
  color: var(--accent-deep);
  border: 1px solid rgba(96, 128, 224, 0.12);
}

.tag--neutral {
  background: var(--bg-surface);
  color: var(--text-secondary);
  border: 1px solid var(--line-subtle);
}

@media (prefers-color-scheme: dark) {
  .tag--pink {
    background: rgba(161, 76, 104, 0.10);
    color: var(--blush);
  }
  .tag--blue {
    background: rgba(49, 92, 255, 0.08);
    color: var(--accent-muted);
  }
}


/* --- Modal --- */
.modal {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: var(--space-8);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--duration-slow) var(--ease-out),
              visibility var(--duration-slow) var(--ease-out);
  overflow-y: auto;
}

.modal[aria-hidden="false"] {
  opacity: 1;
  visibility: visible;
}

.modal__backdrop {
  position: fixed;
  inset: 0;
  background: rgba(10, 2, 6, 0.72);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(6px);
}

.modal__container {
  position: relative;
  width: 100%;
  max-width: 860px;
  background: var(--bg-elevated);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-2xl);
  padding: var(--space-12);
  margin: var(--space-8) 0;
  transform: translateY(24px) scale(0.97);
  transition: transform var(--duration-slow) var(--ease-out);
}

.modal[aria-hidden="false"] .modal__container {
  transform: translateY(0) scale(1);
}

.modal__close {
  position: sticky;
  top: 0;
  float: right;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: var(--bg-surface);
  color: var(--text-secondary);
  z-index: 10;
  border: 1px solid var(--line-subtle);
  transition: background var(--duration-fast) var(--ease-out),
              color var(--duration-fast) var(--ease-out),
              transform var(--duration-fast) var(--ease-spring);
}

.modal__close:hover {
  background: var(--accent-soft);
  color: var(--accent-strong);
  transform: rotate(90deg);
}

@media (max-width: 768px) {
  .modal {
    padding: 0;
  }
  .modal__container {
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    padding: var(--space-6);
    margin: var(--space-16) 0 0;
    min-height: calc(100vh - var(--space-16));
  }
}


/* --- Case Study (inside modal) --- */

.case-study__header {
  margin-bottom: var(--space-10);
}

.case-study__header-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-5);
}

.case-study__title {
  font-size: var(--text-3xl);
  font-weight: 800;
  letter-spacing: var(--tracking-tight);
  line-height: var(--leading-tight);
  margin-bottom: var(--space-2);
}

.case-study__product {
  font-size: var(--text-base);
  color: var(--text-tertiary);
  margin-bottom: var(--space-6);
}

.case-study__meta-grid {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3) var(--space-6);
  padding: var(--space-5) var(--space-6);
  background: var(--bg-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--line-subtle);
}

.case-study__meta-item {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
}

.case-study__meta-label {
  display: inline;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  color: var(--text-tertiary);
  white-space: nowrap;
}

.case-study__meta-value {
  display: inline;
  font-size: var(--text-sm);
  color: var(--text-primary);
  line-height: var(--leading-relaxed);
}

@media (max-width: 768px) {
  .case-study__title {
    font-size: var(--text-2xl);
  }
  .case-study__meta-grid {
    flex-direction: column;
    gap: var(--space-3);
  }
}

/* Sections */
.case-study__section {
  margin-bottom: var(--space-10);
}

.case-study__section:last-child {
  margin-bottom: 0;
}

.case-study__section-title {
  font-size: var(--text-xl);
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
}

/* Section title mark — a short horizontal rule. Visually distinct from
   the circular list bullets in insights and findings. */
.case-study__section-mark {
  width: 16px;
  height: 1.5px;
  border-radius: 1px;
  background: var(--accent-muted);
  flex-shrink: 0;
  opacity: 0.7;
}

/* Mono sub-label for image groups — "For restaurants", "For consumers" etc */
.case-study__subsection-label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  color: var(--text-tertiary);
  margin-bottom: var(--space-3);
  margin-top: var(--space-6);
}

.case-study__subsection-label:first-of-type {
  margin-top: 0;
}

/* Cards */
.case-study__card {
  background: var(--bg-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  line-height: var(--leading-relaxed);
  color: var(--text-secondary);
  border: 1px solid var(--line-subtle);
}

.case-study__card + .case-study__card {
  margin-top: var(--space-4);
}

.case-study__card p {
  color: var(--text-secondary);
}

.case-study__card p + p {
  margin-top: var(--space-3);
}

.case-study__card p + ul,
.case-study__card ul + p {
  margin-top: var(--space-3);
}

.case-study__card p + .case-study__process-grid,
.case-study__card .case-study__process-grid + p {
  margin-top: var(--space-5);
}

.case-study__card h4 {
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-3);
}

.case-study__card h4:not(:first-child) {
  margin-top: var(--space-6);
  padding-top: var(--space-5);
  border-top: 1px solid var(--line-subtle);
}

.case-study__card--accent {
  background: var(--accent-soft);
  border-color: var(--accent-muted);
  color: var(--text-primary);
}

.case-study__card--accent h4:not(:first-child) {
  border-top-color: rgba(110, 127, 184, 0.20);
}

.case-study__card--accent p,
.case-study__card--accent li {
  color: var(--text-primary);
  line-height: var(--leading-relaxed);
}

.case-study__card--accent strong {
  color: var(--accent-deep);
  font-weight: 700;
}

@media (prefers-color-scheme: dark) {
  .case-study__card--accent {
    background: rgba(49, 92, 255, 0.06);
    border-color: rgba(49, 92, 255, 0.14);
  }
  .case-study__card--accent p,
  .case-study__card--accent li {
    color: var(--text-secondary);
  }
  .case-study__card--accent strong {
    color: var(--accent-deep);
  }
}

.case-study__card--subtle {
  background: var(--bg-surface);
  border: 1px solid var(--line-subtle);
}

/* Process Grid */
.case-study__process-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-6);
}

.process-step { position: relative; }

.process-step__number {
  font-size: var(--text-3xl);
  font-weight: 800;
  color: var(--accent-strong);
  line-height: 1;
  margin-bottom: var(--space-3);
  display: block;
}

.process-step__title {
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}

.process-step p {
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
}

/* Insights */
.case-study__insights {
  margin-top: var(--space-6);
  padding-left: var(--space-3);
  border-left: 2px solid var(--line-subtle);
}

.case-study__insights-title {
  font-size: var(--text-base);
  font-weight: 700;
  margin-bottom: var(--space-4);
}

.case-study__insights-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.case-study__insights-list li {
  padding-left: var(--space-5);
  position: relative;
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
}

.case-study__insights-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 5px;
  height: 5px;
  border-radius: var(--radius-full);
  background: var(--accent-strong);
}

/* Stats */
.case-study__stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: var(--space-3);
  margin: var(--space-5) 0;
}

.case-study__stats--inline {
  margin-bottom: 0;
  margin-top: var(--space-4);
}

.stat {
  text-align: center;
  padding: var(--space-5);
  background: var(--bg-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--line-subtle);
}

.stat__value {
  display: block;
  font-size: var(--text-3xl);
  font-weight: 800;
  color: var(--accent-strong);
  line-height: var(--leading-tight);
  margin-bottom: var(--space-2);
}

.stat__label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
}

.stat--small { padding: var(--space-4); }
.stat--small .stat__value { font-size: var(--text-2xl); }

/* Findings */
.case-study__findings {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.case-study__findings li {
  padding-left: var(--space-5);
  position: relative;
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
}

.case-study__findings li::before {
  content: '\2713';
  position: absolute;
  left: 0;
  color: var(--color-success);
  font-weight: 700;
}

/* Outcomes */
.case-study__outcomes {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-5);
}

.outcome {
  padding: var(--space-6);
  background: var(--bg-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--line-subtle);
  transition: border-color var(--duration-normal) var(--ease-out),
              transform var(--duration-normal) var(--ease-out);
}

.outcome:hover {
  border-color: var(--accent-muted);
  transform: translateY(-2px);
}

.outcome__icon { font-size: var(--text-2xl); margin-bottom: var(--space-3); }
.outcome h4 { font-size: var(--text-sm); font-weight: 700; margin-bottom: var(--space-2); }
.outcome p { font-size: var(--text-sm); color: var(--text-secondary); line-height: var(--leading-relaxed); }


/* --- Case Study Cover Image --- */
.case-study__cover {
  width: calc(100% + var(--space-12) * 2);
  margin-left: calc(-1 * var(--space-12));
  margin-top: calc(-1 * var(--space-12));
  margin-bottom: var(--space-8);
  overflow: hidden;
  max-height: 380px;
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
}

.case-study__cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}

@media (max-width: 768px) {
  .case-study__cover {
    width: calc(100% + var(--space-6) * 2);
    margin-left: calc(-1 * var(--space-6));
    margin-top: calc(-1 * var(--space-6));
    max-height: 240px;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  }
}


/* --- Case Study Images --- */
.case-study__image {
  width: 100%;
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin: var(--space-4) 0;
}

.case-study__image img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-lg);
}

.case-study__image-caption {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  margin-top: var(--space-2);
  margin-bottom: var(--space-4);
  letter-spacing: var(--tracking-wide);
}

.case-study__image-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
  margin: var(--space-4) 0;
}

.case-study__image-grid img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-md);
}

@media (max-width: 600px) {
  .case-study__image-grid {
    grid-template-columns: 1fr;
  }
}

/* User Flow */
.case-study__flow {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  overflow-x: auto;
  padding: var(--space-2) 0;
}

.flow-step { flex-shrink: 0; text-align: center; width: 140px; }
.flow-step__icon { font-size: var(--text-3xl); margin-bottom: var(--space-2); }
.flow-step__label { font-size: var(--text-sm); font-weight: 700; color: var(--text-primary); margin-bottom: var(--space-1); }
.flow-step__desc { font-size: var(--text-xs); color: var(--text-tertiary); line-height: var(--leading-relaxed); }
.flow-step__connector { flex-shrink: 0; width: 40px; height: 1.5px; background: var(--accent-muted); margin-top: 28px; }