/* =============================================
   CASE STUDY 02 : ChicaGo
   Color palette: steel blue, warm amber, sage
   ============================================= */

/* --- Variables --- */
:root {
  --c2-blue:    #4E7FA6;
  --c2-sky:     #88BAD9;
  --c2-amber:   #C87D4E;
  --c2-sage:    #4A8876;
  --c2-purple:  #7B68B5;
  --c2-cream:   #F5F2EC;
  --c2-light:   #EAF2F7;
  --c2-ink:     #2f2a26;
  --c2-ink-mid: #5a5450;
  --c2-white:   #ffffff;
}

/* Fix horizontal overflow caused by width:100vw full-bleed sections */
html { overflow-x: hidden; }


/* =============================================
   PAGE WRAPPER
   ============================================= */
#cs-wrapper { margin-top: 80px; }


/* =============================================
   HERO IMAGE
   ============================================= */
.cs-hero-image {
  max-width: 1400px;
  margin: 3rem auto 0;
  padding: 0 3rem;
}
.cs-hero-image img {
  width: 100%;
  height: 520px;
  object-fit: cover;
  display: block;
}


/* =============================================
   COVER
   ============================================= */
.cs-cover {
  padding: 7rem 3rem 4rem;
  max-width: 1200px;
  margin: 0 auto;
}
.cs-cover-split {
  display: grid;
  grid-template-columns: 0.85fr 1.7fr;
  gap: 5rem;
  align-items: start;
}
.cs-cover-info {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}
.cs-info-group h3 {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin: 0 0 0.5rem;
  opacity: 0.55;
}
.cs-info-group p {
  font-size: 0.95rem;
  margin: 0;
  font-weight: 400;
}
.cs-cover-case {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--c2-blue);
  margin: 0 0 0.9rem;
}
.cs-cover-title {
  font-size: 4rem;
  font-weight: 700;
  margin: 0 0 2rem;
  letter-spacing: -0.03em;
}
.cs-cover-subtitle {
  font-size: 1.05rem;
  font-weight: 400;
  max-width: 680px;
  margin: 0;
}
.cs-prototype-btn {
  display: inline-block;
  width: fit-content;
  margin-top: 1rem;
  padding: 0.9rem 1.4rem;
  border: 2px solid var(--c2-sky);
  border-radius: 0.5rem;
  color: var(--c2-blue);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  transition: all 0.22s ease;
}
.cs-prototype-btn:hover {
  background: var(--c2-blue);
  border-color: var(--c2-blue);
  color: var(--c2-white);
}

/* Cover gallery */
.cs-cover-gallery {
  max-width: 1400px;
  margin: 3rem auto 0;
  padding: 0 3rem;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.cs-cover-gallery img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  display: block;
}


/* =============================================
   BODY
   ============================================= */
.cs-body {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 4rem 6rem;
}
.cs-section {
  padding-top: 2rem;
  margin-top: 2rem;
}
.cs-section:first-child { margin-top: 0; }

.cs-section-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 0 1.8rem;
  letter-spacing: 0em;
}
.cs-section p {
  font-size: 1rem;
  font-weight: 400;
  margin: 0 0 1.2rem;
  max-width: 680px;
}

/* Sub-headings */
.cs-sub-heading {
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c2-blue);
  font-size: 1rem;
  font-weight: 700;
  margin: 2rem 0 0.8rem;
  text-decoration: none;
}

/* Bullet lists */
.cs-section ul {
  list-style: none;
  padding: 0;
  margin: 0 0 1.4rem;
  max-width: 680px;
}
.cs-section ul li {
  font-size: 0.95rem;
  line-height: 1.75;
  padding-left: 1.4rem;
  position: relative;
  margin-bottom: 0.45rem;
}
.cs-section ul li::before {
  content: "●";
  position: absolute;
  left: 0;
  font-size: 0.45rem;
  top: 0.6em;
  opacity: 0.5;
}


/* =============================================
   IMAGE BLOCKS
   ============================================= */
.cs-image-block {
  margin: 2.5rem auto;
  text-align: center;
}
.cs-image-block img {
  width: 100%;
  height: auto;
  display: block;
}
.cs-image-block.large  { max-width: 1000px; }
.cs-image-block.medium { max-width: 700px;  }
.cs-image-block.small  { max-width: 400px;  }
.cs-image-block figcaption {
  font-size: 0.78rem;
  color: var(--c2-ink-mid);
  margin-top: 0.6rem;
  text-align: center;
}


/* =============================================
   EXPANDABLE IMAGE & LIGHTBOX
   ============================================= */
.cs-expandable-image {
  cursor: zoom-in;
  pointer-events: auto;
  transition: opacity 0.2s ease;
}
.cs-expandable-image:hover { opacity: 0.88; }

.cs-lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.86);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all 0.25s ease;
  z-index: 9999;
  cursor: zoom-out;
}
.cs-lightbox.active {
  opacity: 1;
  visibility: visible;
}
.cs-lightbox img {
  max-width: 90vw;
  max-height: 90vh;
  width: auto;
  height: auto;
  display: block;
  object-fit: contain;
}


/* =============================================
   PROBLEM + COLLABORATION SECTION
   ============================================= */
.c2-problem-collab-section {
  margin-top: 4rem;
  margin-left: -5.5rem;
  margin-right: -5.5rem;
  margin-bottom: 5rem;
}
.c2-problem-collab-grid {
  display: grid;
  grid-template-columns: 1.25fr 0.9fr;
  align-items: stretch;
}
.c2-problem-block {
  background:#D7EFFD;
  padding: 4rem;
}
.c2-collab-block {
  background: #EBF2F6;
  padding: 4rem;
}
.c2-problem-block p,
.c2-collab-block p {
  max-width: none;
  margin: 0 0 1rem;
}
.c2-problem-block ul,
.c2-collab-block ul { max-width: none; }
.c2-problem-block strong { font-weight: 600; }
.c2-problem-block .cs-section-title,
.c2-collab-block .cs-section-title { margin-bottom: 1.2rem; }

@media (max-width: 768px) {
  .c2-problem-collab-section {
    margin-left: -1.5rem;
    margin-right: -1.5rem;
  }
  .c2-problem-collab-grid { grid-template-columns: 1fr; }
  .c2-problem-block,
  .c2-collab-block { padding: 2.5rem 1.5rem; }
}


/* =============================================
   SOLUTION WRAPPER
   ============================================= */
.c2-solution-section { margin-top: 10rem; }

.c2-solution-title {
  position: relative;
  display: block;
  width: fit-content;
  left: 50%;
  transform: translateX(-50%);
  padding-bottom: 0.7rem;
  font-size: 2rem;
  text-align: center;
}
.c2-solution-title::after {
  content: "";
  position: absolute;
  left: 0.05em;
  bottom: 0;
  width: 102%;
  height: 9px;
  background: var(--c2-sky);
  border-radius: 999px;
  transform: rotate(-1.5deg);
}
.c2-process-subtitle {
  text-align: center;
  color: var(--c2-ink);
  opacity: 0.6;
  font-size: 1rem;
  font-weight: 400;
  letter-spacing: -0.01em;
  text-transform: none;
  margin: 1.5rem 0 0;
}


/* =============================================
   SECTION BANNERS  (full-width)
   ============================================= */
.c2-section-banner {
  width: 100vw;
  position: relative;
  left: 50%;
  transform: translateX(-50%);
  padding: 3rem 0;
  margin: 5rem 0 3rem;
}
.c2-banner-inner {
  width: fit-content;
  margin-left: auto;
  margin-right: 10rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}
.c2-banner-inner--left {
  margin-left: 10rem;
  margin-right: auto;
}
.c2-banner-inner--right {
  margin-left: auto;
  margin-right: 10rem;
}
.c2-banner-inner h3 {
  color: #ffffff;
  margin: 0;
  font-size: 2rem;
  font-weight: 700;
}

/* Research = steel blue */
.c2-research-banner  { background: #3D7FAA; }
/* Synthesis = medium purple */
.c2-synthesis-banner { background: #7B68B5; }
/* Define = sage teal */
.c2-define-banner    { background: #4A8876; }
/* Prototype = warm amber-terracotta */
.c2-prototype-banner { background: #B87060; }

@media (max-width: 768px) {
  .c2-banner-inner      { margin-right: 1.5rem; }
  .c2-banner-inner--left  { margin-left: 1.5rem; margin-right: auto; }
  .c2-banner-inner--right { margin-right: 1.5rem; }
  .c2-banner-inner h3   { font-size: 1.6rem; }
}


/* =============================================
   SHARED FULL-WIDTH SECTION UTILITY
   ============================================= */
.c2-research-section,
.c2-stakeholder-section,
.c2-personas-section,
.c2-survey-section,
.c2-affinity-section,
.c2-synthesis-section,
.c2-define-section,
.c2-prototype-section {
  width: 100vw;
  position: relative;
  left: 50%;
  transform: translateX(-50%);
  padding: 0 5rem;
  box-sizing: border-box;
}

/* Shared text description */
.c2-section-desc {
  font-size: 1rem;
  line-height: 1.75;
  color: var(--c2-ink);
  max-width: 720px;
  margin: 0 0 1.5rem;
}
.c2-findings-label {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--c2-ink);
  margin: 2rem 0 1.2rem;
  opacity: 0.75;
}


/* =============================================
   COMPARABLE APP (Eat This Much)
   ============================================= */
.c2-research-section { margin-top: 6rem; }

.c2-text-image-layout {
  display: grid;
  grid-template-columns: 1fr 0.75fr;
  gap: 4rem;
  align-items: start;
  margin-bottom: 4rem;
}
.c2-text-col p {
  font-size: 1rem;
  line-height: 1.75;
  max-width: none;
  margin: 0 0 1rem;
}
.c2-text-col .cs-sub-heading { margin-top: 0; }
.c2-image-col { margin: 0; }
.c2-image-col img {
  width: 100%;
  max-width: 500px;
  height: auto;
  display: block;
  margin: 0 auto;
}

/* User Behavior Cycle (Eat This Much mental model) */
.c2-cycle-flow {
  display: flex;
  align-items: stretch;
  gap: 0.75rem;
  margin-bottom: 1.8rem;
}
.c2-cycle-step {
  flex: 1;
  background: var(--c2-light);
  border-top: 4px solid var(--c2-sky);
  padding: 1.4rem;
}
.c2-cycle-num {
  display: block;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--c2-blue);
  opacity: 0.45;
  margin-bottom: 0.5rem;
}
.c2-cycle-step h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--c2-ink);
  margin: 0 0 0.5rem;
}
.c2-cycle-step p {
  font-size: 0.85rem;
  line-height: 1.6;
  color: var(--c2-ink-mid);
  margin: 0;
  max-width: none;
}
.c2-cycle-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  color: var(--c2-sage);
  opacity: 0.8;
  flex-shrink: 0;
}

@media (max-width: 900px) {
  .c2-cycle-flow { flex-direction: column; }
  .c2-cycle-arrow { transform: rotate(90deg); padding: 0.2rem 0; }
}


/* =============================================
   STAKEHOLDERS
   ============================================= */
.c2-stakeholder-section { margin-top: 5rem; }

.c2-stakeholder-heading { margin-bottom: 0.5rem; }
.c2-stakeholder-heading p { max-width: none; font-size: 1rem; line-height: 1.75; margin: 0 0 0.8rem; }

.c2-stakeholder-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 1.5rem;
}
.c2-stakeholder-col {
  background: var(--c2-cream);
  padding: 1.6rem;
}
.c2-stakeholder-col h4 {
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--c2-blue);
  margin: 0 0 1rem;
}
.c2-stakeholder-col ul { list-style: none; padding: 0; margin: 0; }
.c2-stakeholder-col ul li {
  font-size: 0.9rem;
  line-height: 1.7;
  padding-left: 1rem;
  position: relative;
  margin-bottom: 0.3rem;
}
.c2-stakeholder-col ul li::before {
  content: "●";
  position: absolute;
  left: 0;
  opacity: 0.45;
}


/* =============================================
   PERSONAS
   ============================================= */
.c2-personas-section { margin-top: 5rem; }

.c2-persona-highlight-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.c2-personas-section .cs-sub-heading {
  margin-top: 0;
  margin-bottom: 0.8rem;
}




/* =============================================
   SURVEY
   ============================================= */
.c2-survey-section { margin-top: 5rem; }

.c2-survey-intro-layout {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 4rem;
  align-items: start;
  margin-bottom: 3rem;
}
.c2-survey-text .cs-sub-heading { margin-top: 0; }
.c2-survey-text p { max-width: none; font-size: 1rem; line-height: 1.75; margin: 0 0 1rem; }

.c2-survey-stats {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: flex-start;
}
.c2-stat-card {
  background: var(--c2-blue);
  padding: 1.5rem 1.8rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.35rem;
  min-width: 85px;
}
.c2-stat-card strong {
  font-size: 2.2rem;
  font-weight: 700;
  line-height: 1;
  color: #ffffff;
}
.c2-stat-card span {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: rgba(255,255,255,0.78);
  text-align: center;
}

/* Survey finding cards */
.c2-survey-findings-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.2rem;
}
.c2-finding-card {
  background: var(--c2-white);
  border: 1px solid rgba(47,42,38,0.08);
  border-top: 4px solid var(--c2-sky);
  padding: 1.4rem;
  box-shadow: 0 4px 14px rgba(47,42,38,0.05);
}
.c2-finding-card h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--c2-ink);
  margin: 0 0 0.6rem;
}
.c2-finding-card p {
  font-size: 0.88rem;
  line-height: 1.65;
  color: var(--c2-ink-mid);
  margin: 0;
  max-width: none;
}


/* =============================================
   AFFINITY MAPPING
   ============================================= */
.c2-affinity-section { margin-top: 5rem; }
.c2-affinity-text p { max-width: 720px; font-size: 1rem; line-height: 1.75; margin: 0 0 1rem; }

.c2-affinity-images {

  margin-top: 1.5rem;
}



/* =============================================
   SYNTHESIS : Themes
   ============================================= */
.c2-synthesis-section { margin-top: 3rem; }
.c2-synthesis-section .c2-section-desc { max-width: 720px; margin-bottom: 2rem; }

.c2-themes-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.c2-theme-card {
  padding: 2rem;
  position: relative;
}
.c2-theme-card span {
  display: block;
  font-size: 2.2rem;
  font-weight: 700;
  line-height: 1;
  margin-bottom: 1rem;
}
.c2-theme-card h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--c2-ink);
  margin: 0 0 1rem;
  position: relative;
  display: inline-block;
  padding-bottom: 0.35rem;
}

.c2-theme-card h4::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 6px;
  border-radius: 999px;
  opacity: 0.35;
  z-index: -1;
}

.c2-theme-card--explore h4::after {
  background: var(--c2-blue);
}

.c2-theme-card--authentic h4::after {
  background: var(--c2-purple);
}

.c2-theme-card--guidance h4::after {
  background: var(--c2-sage);
}
.c2-theme-card p {
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--c2-ink-mid);
  margin: 0;
  max-width: none;
}





/* =============================================
   SYNTHESIS : Use Cases
   ============================================= */
.c2-usecase-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.c2-usecase-card {
  background: rgba(78, 127, 166, 0.07);
  padding: 2rem;
  border-left: 4px solid var(--c2-blue);
}
.c2-usecase-num {
  display: block;
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
  color: var(--c2-blue);
  opacity: 0.5;
  margin-bottom: 0.8rem;
}
.c2-usecase-card h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--c2-ink);
  margin: 0 0 0.5rem;
}
.c2-usecase-goal {
  font-size: 0.82rem;

  color: var(--c2-blue);
  margin: 0 0 1rem;
  max-width: none;
  display: block;
}
.c2-usecase-card ul { list-style: none; padding: 0; margin: 0; max-width: none; }
.c2-usecase-card ul li {
  font-size: 0.88rem;
  line-height: 1.7;
  padding-left: 1rem;
  position: relative;
  margin-bottom: 0.4rem;
}
.c2-usecase-card ul li::before {
  content: "●";
  position: absolute;
  left: 0;
  opacity: 0.45;
}


/* =============================================
   DEFINE : Task Flows
   ============================================= */
.c2-define-section { margin-top: 3rem; }
.c2-define-section .c2-section-desc { max-width: 720px; margin-bottom: 2rem; }


.c2-taskflow-label span {
  display: block;
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c2-sage);
  margin-bottom: 0.35rem;
}
.c2-taskflow-label h4 {
  font-size: 1rem;
  font-weight: 500;
  color: var(--c2-ink);
  margin: 0;
}


/* =============================================
   PROTOTYPE : Sketches, Wireframes, Lo-fi, Hi-fi
   ============================================= */
.c2-prototype-image {
  margin: 0 auto;
}

.c2-prototype-image img {
  width: 100%;
  height: auto;
  display: block;
}

/* Adjust sketch image size */
.c2-sketch-image {
  max-width: 600px;
}

/* Adjust wireframe image size */
.c2-wireframe-image {
  max-width: 1300px;
}

.c2-lowfidelity-image {
  max-width: 1300px;
}


/* =============================================
   HI-FI : Welcome & Home
   ============================================= */


.c2-hifi-welcome-home-section {
  width: 100vw;
  position: relative;
  left: 50%;
  transform: translateX(-50%);
  background: #C6D5E1;
  margin-top: 4rem;
  padding: 5rem 5rem;
  box-sizing: border-box;
}

.c2-hifi-welcome-home-inner {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 4rem;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
}

.c2-hifi-welcome-home-text {
  color: var(--c2-ink);
}

.c2-hifi-welcome-home-text .cs-sub-heading {
  color: var(--c2-blue);
  margin-top: 0;
  margin-bottom: 2rem;
}

.c2-hifi-welcome-home-text h3 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--c2-ink);
  margin: 0 0 2rem;
}

.c2-hifi-screen-text {
  margin-bottom: 1.8rem;
}

.c2-hifi-screen-text:last-child {
  margin-bottom: 0;
}

.c2-hifi-screen-text h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--c2-ink);
  margin: 0 0 0.5rem;
}

.c2-hifi-screen-text p {
  font-size: 1rem;
  line-height: 1.75;
  color: var(--c2-ink-mid);
  max-width: 520px;
  margin: 0;
}

.c2-hifi-welcome-home-image {
  margin: 0;
}

.c2-hifi-welcome-home-image img {
  width: 100%;
  max-width: 560px;
  height: auto;
  display: block;
  margin-left: auto;
}

.c2-hifi-prototype-btn {
  margin-top: 0;
  margin-bottom: 2.5rem;
  border-color: var(--c2-blue);
  color: var(--c2-blue);
  background: #F3FAFF;
}

.c2-hifi-prototype-btn:hover {
  background: var(--c2-blue);
  color: #ffffff;
}




/* =============================================
   HI-FI : Plan Setup
   ============================================= */

.c2-hifi-plan-setup-section {
  width: 100vw;
  position: relative;
  left: 50%;
  transform: translateX(-50%);
  background: #EBF2F6;
  margin-top: 0;
  padding: 5rem 5rem;
  box-sizing: border-box;
}

.c2-hifi-plan-setup-inner {
  display: grid;
  grid-template-columns: 1fr 0.9fr;
  gap: 4rem;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
}

.c2-hifi-plan-setup-image {
  margin: 0;
}

.c2-hifi-plan-setup-image img {
  width: 100%;
  max-width: 500px;
  height: auto;
  display: block;
  margin: 0 auto;
}

.c2-hifi-plan-setup-text {
  color: var(--c2-ink);
}

.c2-hifi-plan-setup-text .c2-hifi-screen-text {
  margin-bottom: 2rem;
}

.c2-hifi-plan-setup-text .c2-hifi-screen-text:last-child {
  margin-bottom: 0;
}

.c2-hifi-plan-setup-text h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--c2-ink);
  margin: 0 0 0.6rem;
}

.c2-hifi-plan-setup-text p {
  font-size: 1rem;
  line-height: 1.75;
  color: var(--c2-ink-mid);
  max-width: 520px;
  margin: 0;
}




/* =============================================
   HI-FI : Generated Plan
   ============================================= */

.c2-hifi-generated-plan-section {
  width: 100vw;
  position: relative;
  left: 50%;
  transform: translateX(-50%);
  background: #C6D5E1;
  padding: 5rem 5rem;
  box-sizing: border-box;
}

.c2-hifi-generated-plan-inner {
  display: grid;
  grid-template-columns: 0.9fr 1fr;
  gap: 4rem;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
}

.c2-hifi-generated-plan-text {
  color: var(--c2-ink);
}

.c2-hifi-generated-plan-text h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--c2-ink);
  margin: 0 0 1rem;
}

.c2-hifi-generated-plan-text p {
  font-size: 1rem;
  line-height: 1.75;
  color: var(--c2-ink-mid);
  max-width: 520px;
  margin: 0 0 1rem;
}

.c2-hifi-generated-plan-image {
  margin: 0;
}

.c2-hifi-generated-plan-image img {
  width: 100%;
  max-width: 400px;
  height: auto;
  display: block;
  margin-left: auto;
  margin-right: auto;
}




/* =============================================
   HI-FI : Saved Plans & Navigation
   ============================================= */

.c2-hifi-saved-navigation-section {
  width: 100vw;
  position: relative;
  left: 50%;
  transform: translateX(-50%);
  background: #EBF2F6;
  padding: 5rem 5rem;
  box-sizing: border-box;
}

.c2-hifi-saved-navigation-inner {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 4rem;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
}

.c2-hifi-saved-navigation-image {
  margin: 0;
}

.c2-hifi-saved-navigation-image img {
  width: 100%;
  max-width: 500px;
  height: auto;
  display: block;
  margin: 0 auto;
}

.c2-hifi-saved-navigation-text {
  color: var(--c2-ink);
}

.c2-hifi-saved-navigation-text .c2-hifi-screen-text {
  margin-bottom: 2rem;
}

.c2-hifi-saved-navigation-text .c2-hifi-screen-text:last-child {
  margin-bottom: 0;
}

.c2-hifi-saved-navigation-text h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--c2-ink);
  margin: 0 0 0.7rem;
}

.c2-hifi-saved-navigation-text p {
  font-size: 1rem;
  line-height: 1.75;
  color: var(--c2-ink-mid);
  max-width: 520px;
  margin: 0;
}






/* =============================================
   DESIGN GOALS (formerly Impact)
   ============================================= */

.c2-impact-section > p { max-width: 720px; }

.c2-impact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-top: 1rem;
  align-items: stretch;
  
}
.c2-impact-col {
  padding: 2.4rem;
}
.c2-impact-col--user    { background: rgba(78, 127, 166, 0.1); }
.c2-impact-col--business { background: #D7EFFD; }
.c2-impact-col h3 {
  font-size: 1rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--c2-blue);
  margin: 0 0 1.2rem;
}
.c2-impact-col--business h3 { color: var(--c2-blue); }
.c2-impact-col ul { list-style: none; padding: 0; margin: 0; max-width: none; }
.c2-impact-col ul li {
  font-size: 0.95rem;
  line-height: 1.75;
  padding-left: 1.3rem;
  position: relative;
  margin-bottom: 0.7rem;
}
.c2-impact-col ul li::before {
  content: "●";
  position: absolute;
  left: 0;
  font-size: 0.45rem;
  top: 0.6em;
  opacity: 0.5;
}



/* =============================================
   REFLECTION SECTION (full-width)
   ============================================= */
.c2-reflection-section {
  width: 100vw;
  position: relative;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(244, 241, 222, 0.55);
  padding: 6rem 5rem 7rem;
  box-sizing: border-box;
  margin-top: 0;
}
.c2-reflection-inner {
  max-width: 1200px;
  margin: 0 auto;
}
.c2-reflection-label {
  color: var(--c2-blue);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: none;
  margin: 0 0 2.5rem;
  display: block;
  text-decoration: none;
}

.c2-reflection-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: stretch;
}
.c2-reflection-col {
  background: var(--c2-white);
  padding: 2.4rem;
  box-shadow: 0 8px 20px rgba(47,42,38,0.06);
}
.c2-reflection-col h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--c2-ink);
  margin: 0 0 1.8rem;
}
.c2-challenge-card {
  border-left: 4px solid var(--c2-blue);
  padding-left: 1.2rem;
  margin-bottom: 1.8rem;
}
.c2-challenge-card:last-child { margin-bottom: 0; }
.c2-challenge-card h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--c2-ink);
  margin: 0 0 0.45rem;
}
.c2-challenge-card p {
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--c2-ink-mid);
  margin: 0;
  max-width: none;
}

/* Right dark column */
.c2-reflection-col--dark {
  background: var(--c2-blue);
}
.c2-reflection-col--dark h3 {
  color: rgba(255,255,255,0.95);
}
.c2-takeaway {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 1rem;
  margin-bottom: 1.8rem;
}
.c2-takeaway span {
  font-size: 1.7rem;
  font-weight: 700;
  line-height: 1;
  color: rgba(255,255,255,0.55);
}
.c2-takeaway p {
  font-size: 0.93rem;
  line-height: 1.7;
  color: rgba(255,255,255,0.86);
  margin: 0;
  max-width: none;
}


/* =============================================
   RESPONSIVE
   ============================================= */

/* --- Tablet: 1024px --- */
@media (max-width: 1024px) {
  .cs-body                  { padding: 0 3rem 5rem; }

  .c2-text-image-layout     { grid-template-columns: 1fr; gap: 2rem; }
  .c2-survey-intro-layout   { grid-template-columns: 1fr; gap: 2rem; }
  .c2-affinity-images       { grid-template-columns: 1fr; }
  .c2-themes-grid           { grid-template-columns: 1fr; }
  .c2-usecase-grid          { grid-template-columns: 1fr; gap: 1.2rem; }
  .c2-stakeholder-grid      { grid-template-columns: 1fr 1fr; }
  .c2-features-grid         { grid-template-columns: 1fr; }

  .c2-banner-inner          { margin-right: 4rem; }
  .c2-banner-inner--left    { margin-left: 4rem; margin-right: auto; }
  .c2-banner-inner--right   { margin-right: 4rem; }
}

/* --- Large mobile / small tablet: 900px --- */
@media (max-width: 900px) {
  .c2-problem-collab-grid     { grid-template-columns: 1fr; }
  .c2-persona-highlight-grid  { grid-template-columns: 1fr; }
  .c2-impact-grid             { grid-template-columns: 1fr; }
  .c2-reflection-grid         { grid-template-columns: 1fr; }
  .c2-survey-findings-grid    { grid-template-columns: repeat(2, 1fr); }
  .c2-cycle-flow              { flex-direction: column; }
  .c2-cycle-arrow             { transform: rotate(90deg); padding: 0.2rem 0; }

  /* Reset all full-width trick sections */
  .c2-research-section,
  .c2-stakeholder-section,
  .c2-personas-section,
  .c2-survey-section,
  .c2-affinity-section,
  .c2-synthesis-section,
  .c2-define-section,
  .c2-prototype-section {
    width: 100%;
    left: auto;
    transform: none;
    padding: 0 2rem;
  }

  /* Reset hi-fi full-bleed sections */
  .c2-hifi-welcome-home-section,
  .c2-hifi-plan-setup-section,
  .c2-hifi-generated-plan-section,
  .c2-hifi-saved-navigation-section {
    width: 100%;
    left: auto;
    transform: none;
    padding: 3rem 2rem;
  }

  .c2-hifi-welcome-home-inner,
  .c2-hifi-plan-setup-inner,
  .c2-hifi-generated-plan-inner,
  .c2-hifi-saved-navigation-inner { grid-template-columns: 1fr; gap: 2.5rem; }

  .c2-hifi-welcome-home-image img,
  .c2-hifi-plan-setup-image img,
  .c2-hifi-generated-plan-image img,
  .c2-hifi-saved-navigation-image img { max-width: 100%; margin: 0 auto; }

  .c2-section-banner {
    width: 100%;
    left: auto;
    transform: none;
  }
  .c2-banner-inner      { margin-right: 2rem; }
  .c2-banner-inner--left  { margin-left: 2rem; margin-right: auto; }
  .c2-banner-inner--right { margin-right: 2rem; }
}

/* --- Mobile: 768px --- */
@media (max-width: 768px) {
  .cs-hero-image            { padding: 0 1rem; }
  .cs-hero-image img        { height: 220px; }

  .cs-cover                 { padding: 2.5rem 1.5rem 2rem; }
  .cs-cover-split           { grid-template-columns: 1fr; gap: 2rem; }
  .cs-cover-title           { font-size: 2.8rem; }
  .cs-cover-subtitle        { font-size: 0.97rem; }

  .cs-body                  { padding: 0 1.5rem 3rem; }

  .c2-problem-collab-section {
    margin-left: -1.5rem;
    margin-right: -1.5rem;
  }
  .c2-problem-block,
  .c2-collab-block          { padding: 2.5rem 1.5rem; }

  /* Tighten full-width sections on mobile */
  .c2-research-section,
  .c2-stakeholder-section,
  .c2-personas-section,
  .c2-survey-section,
  .c2-affinity-section,
  .c2-synthesis-section,
  .c2-define-section,
  .c2-prototype-section {
    padding: 0 1.5rem;
  }

  /* Hi-fi sections */
  .c2-hifi-welcome-home-section,
  .c2-hifi-plan-setup-section,
  .c2-hifi-generated-plan-section,
  .c2-hifi-saved-navigation-section { padding: 2.5rem 1.5rem; }

  /* Reflection */
  .c2-reflection-section {
    width: 100%;
    left: auto;
    transform: none;
    padding: 3.5rem 1.5rem 4rem;
  }
  .c2-reflection-col        { padding: 1.6rem; }
  .c2-reflection-label      { font-size: 1.2rem; margin-bottom: 1.8rem; }
  .c2-takeaway              { grid-template-columns: 1fr; gap: 0.3rem; }
  .c2-takeaway span         { font-size: 1.3rem; }

  /* Impact / Design Goals */
  .c2-impact-grid           { grid-template-columns: 1fr; }
  .c2-impact-col            { padding: 1.8rem; }

  /* Survey */
  .c2-survey-findings-grid  { grid-template-columns: 1fr; }
  .c2-survey-stats          { gap: 0.75rem; }
  .c2-stat-card             { padding: 1.2rem 1.5rem; }
  .c2-stat-card strong      { font-size: 1.8rem; }

  /* Stakeholders */
  .c2-stakeholder-grid      { grid-template-columns: 1fr; }

  /* Themes */
  .c2-theme-card            { padding: 1.5rem; }

  /* Banners */
  .c2-banner-inner h3       { font-size: 1.4rem; }
  .c2-section-banner        { padding: 2rem 0; margin: 3rem 0 2rem; }

  /* Cycle flow */
  .c2-cycle-step            { padding: 1.1rem; }

  /* Task flow labels */
  .c2-taskflow-label        { padding: 1rem; }

  /* Images */
  .cs-image-block.large,
  .cs-image-block.medium    { max-width: 100%; }

  /* Usecase cards */
  .c2-usecase-card          { padding: 1.5rem; }

  /* Section spacing */
  .c2-stakeholder-section,
  .c2-personas-section,
  .c2-survey-section,
  .c2-affinity-section      { margin-top: 3rem; }

  .c2-solution-section      { margin-top: 4rem; }
}

/* --- Small mobile: 480px --- */
@media (max-width: 480px) {
  .cs-cover-title           { font-size: 2.2rem; }
  .cs-sub-heading           { font-size: 0.78rem; }
  .c2-hifi-screen-text p,
  .c2-hifi-generated-plan-text p,
  .c2-hifi-saved-navigation-text p { font-size: 0.92rem; }
  .c2-challenge-card p,
  .c2-takeaway p            { font-size: 0.88rem; }
  .c2-impact-col ul li      { font-size: 0.88rem; }
  .c2-section-banner        { padding: 1.5rem 0; }
  .c2-banner-inner h3       { font-size: 1.2rem; }
}