@font-face {
  font-family: 'Tia Mei';
  src: url('font/Tia Mei Font.ttf') format('truetype');
  font-weight: normal;
  font-style: normal;
}

@font-face {
  font-family: 'Outfit';
  src: url('font/Outfit,Parkinsans/Outfit/Outfit-VariableFont_wght.ttf') format('truetype');
  font-weight: 100 900;
  font-style: normal;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg: #F9F4ED;
  --surface: #ffffff;
  --accent: #3F6B4B;
  --heading-color: #344054;
  --text: #344054;
  --muted: #7B8899;
  --border: #E4DFD6;
  --max-width: 1200px;
  --gap: 2rem;
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Poppins', system-ui, sans-serif;
  --radius: 14px;

  /* Sticky note palette */
  --note-peach:   #FFD4B2;
  --note-mint:    #C3F0DB;
  --note-lavender:#DDD6FE;
  --note-yellow:  #FEF08A;
  --note-sky:     #BAE6FD;
  --note-pink:    #FBCFE8;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  letter-spacing: 0.02rem;
}

.text-small {
  font-size: 0.875rem;
}

strong {
  font-weight: 600;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--heading-color);
  letter-spacing: 0.02em;
}

/* ── Nav ───────────────────────────────────────────────── */
header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(249, 244, 237, 0.88);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

nav {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0.9rem var(--gap);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.5rem;
  color: #344054;
  position: relative;
  display: inline-block;
}


nav ul {
  list-style: none;
  display: flex;
  gap: 0.5rem;
}

nav a {
  color: #344054;
  text-decoration: none;
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 500;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  transition: background 0.18s, color 0.18s;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

nav a:hover {
  background: #DCE8D8;
  color: #3F6B4B;
}

nav a.nav-active {
  background: var(--accent);
  color: #fff;
}

nav a.logo:hover {
  background: none;
  color: #344054;
  cursor: pointer;
}

/* ── Layout ────────────────────────────────────────────── */
main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--gap);
}

section {
  padding: 5rem 0;
}

section + section {
  border-top: 1px dashed var(--border);
}

/* ── Split layout ──────────────────────────────────────── */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.split section {
  border-top: none;
  padding: 2.5rem 0 5rem;
}


@media (max-width: 1190px) {
  /* ── Kill all desktop sticky/overlay behaviour ── */
  .sticky-panel {
    position: static;
    display: block;
  }

  .split {
    display: block;
  }

  .folder-track .folder-panel,
  .folder-overlay-track .folder-panel,
  .folder-panel {
    position: static !important;
    height: auto !important;
    transform: none !important;
    transition: none !important;
    z-index: auto !important;
    margin-top: 0;
    padding-top: 36px;
  }

  .sticky-panel,
  #hero,
  #work {
    position: static !important;
  }

  .folder-panel:hover,
  .folder-overlay-track .folder-panel:hover {
    transform: none !important;
  }

  /* ── Overlay track: full width, gap below mPOS ── */
  .folder-overlay-track {
    position: static !important;
    width: 100% !important;
    margin-left: 0 !important;
    margin-top: 0 !important;
    min-height: unset !important;
    display: flex;
    flex-direction: column;
    gap: 20.5rem;
    padding-top: 3rem;
    padding-bottom: 5rem;
  }

  #work {
    padding-top: 0;
    padding-bottom: 0;
  }

  .folder-track {
    margin-top: 0;
  }

  /* ── Folders full width, auto height, relative for tab positioning ── */
  .folder,
  .folder-overlay-track .folder {
    height: auto !important;
    position: relative;
    border-top: 2px solid #344054;
  }

  .folder-media {
    height: auto !important;
  }

  .folder {
    min-height: unset !important;
  }

  .folder-track .folder-media {
    margin-bottom: 0;
  }

  /* ── Tabs visible on mobile, no wrapping ── */
  .folder::before {
    display: flex !important;
    white-space: nowrap;
    width: auto;
  }

  .folder-overlay-track .folder-panel:nth-child(1) .folder::before,
  .folder-overlay-track .folder-panel:nth-child(2) .folder::before,
  .folder-overlay-track .folder-panel:nth-child(3) .folder::before {
    left: 20px !important;
    right: auto !important;
    border-bottom: 2px solid #344054;
  }

  .folder::before,
  .folder-track .folder-panel:nth-child(1) .folder::before {
    border-bottom: 2px solid #344054;
  }

  /* ── Restore all rounded corners ── */
  .folder,
  .folder-overlay-track .folder-panel:nth-child(1) .folder,
  .folder-overlay-track .folder-panel:nth-child(3) .folder {
    border-top-left-radius: 8px !important;
    border-top-right-radius: 8px !important;
  }
}

/* ── Hero ──────────────────────────────────────────────── */
#hero {
  padding: 6rem 0 5rem;
}

.sticky-panel {
  position: sticky;
  top: 80px;
  z-index: 1;
  align-self: start;
}

.folder-overlay-track {
  position: relative;
  z-index: 2;
  width: calc(50% - 1.5rem);
  margin-left: calc(50% + 1.5rem);
  margin-top: -22.7rem;
}

.folder-overlay-track .folder-panel:nth-child(1) { z-index: 2; }
.folder-overlay-track .folder-panel:nth-child(1) .folder { background: #DCE8D8; border-top-left-radius: 8px; }
.folder-overlay-track .folder-panel:nth-child(1) .folder::before { background: #DCE8D8; }
.folder-overlay-track .folder-panel {
  height: 800px;
  position: sticky;
  top: 200px;
  transition: transform 0.2s ease;
}

.folder-overlay-track .folder-panel:hover {
  transform: translateY(-2rem);
  cursor: pointer;
}

.folder-overlay-track .folder-panel:nth-child(2) { z-index: 3; margin-top: -17.5rem; top: 230px; }
.folder-overlay-track .folder-panel:nth-child(2) .folder,
.folder-overlay-track .folder-panel:nth-child(2) .folder::before { background: #E8E1F0; }

.folder-overlay-track .folder-panel:nth-child(3) { z-index: 4; margin-top: -17.5rem; top: 260px !important; }
.folder-overlay-track .folder-panel:nth-child(3) .folder { background: #F6EFCF; }
.folder-overlay-track .folder-panel:nth-child(3) .folder::before { background: #F6EFCF; }

.folder-overlay-track .folder {
  min-height: 2rem;
  height: auto;
  display: flex;
  flex-direction: column;
  cursor: pointer;
}

.folder-overlay-track .folder .folder-media {
  flex: 1;
  height: auto;
}

.folder-overlay-track .folder-panel:nth-child(1) .folder::before { left: 150px; }
.folder-overlay-track .folder-panel:nth-child(2) .folder::before { left: 80px; }
.folder-overlay-track .folder-panel:nth-child(3) .folder::before { right: auto; }


h1 {
  font-size: 3rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.1;
}

h2 {
  font-size: 2.25rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
}

h3 {
  font-size: 1.75rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
}

h4 {
  font-size: 1.5rem;
  font-weight: 600;
}

h5 {
  font-size: 1.25rem;
  font-weight: 600;
}

h6 {
  font-size: 1.125rem;
  font-weight: 600;
}

.tagline {
  margin-top: 0.6rem;
  font-size: 24px;
  color: #344054;
  font-weight: 400;
  font-family: 'Tia Mei', sans-serif;
}

#work .tagline {
  font-size: 2.5rem;
  padding-bottom: 0.5rem;
}

#hero .tagline {
  font-size: 2rem;
}

/* ── Hero Button ───────────────────────────────────────── */
.btn-hero {
  display: inline-block;
  margin-top: 1.25rem;
  padding: 0.55rem 1.4rem;
  background: var(--accent);
  color: #fff;
  border-radius: 999px;
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  transition: background 0.18s;
}

.btn-hero:hover {
  background: #2f5237;
}

/* ── About ─────────────────────────────────────────────── */
#about p {
  max-width: 600px;
  color: var(--muted);
}

/* ── Projects ──────────────────────────────────────────── */
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1.25rem;
}

.project-card {
  border-radius: var(--radius);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  border: 1.5px solid transparent;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  will-change: transform;
}

/* sticky note colors */
.project-card:nth-child(1) { background: var(--note-peach);   transform: rotate(-1.2deg); }
.project-card:nth-child(2) { background: var(--note-mint);    transform: rotate(0.8deg);  }
.project-card:nth-child(3) { background: var(--note-lavender);transform: rotate(-0.6deg); }
.project-card:nth-child(4) { background: var(--note-yellow);  transform: rotate(1deg);    }
.project-card:nth-child(5) { background: var(--note-sky);     transform: rotate(-0.9deg); }
.project-card:nth-child(6) { background: var(--note-pink);    transform: rotate(0.5deg);  }

.project-card:hover {
  transform: rotate(0deg) scale(1.03);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.10);
}

.project-card p {
  color: #4A5568;
  font-size: 0.875rem;
  flex: 1;
}

.btn {
  display: inline-block;
  padding: 0.35rem 0.9rem;
  background: rgba(0, 0, 0, 0.07);
  border: none;
  color: var(--text);
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
  text-decoration: none;
  align-self: flex-start;
  font-family: var(--font-body);
  transition: background 0.18s;
}

.btn:hover {
  background: rgba(0, 0, 0, 0.15);
}

/* ── Case Study Meta ───────────────────────────────────── */
.case-meta {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.case-meta-item {
  padding: 1.5rem;
  border: 2px solid var(--border);
  border-radius: var(--radius);
}

.case-meta-item h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.5rem;
}

.case-meta-item p {
  font-size: 1.1rem;
  font-weight: 400;
  color: var(--text);
  line-height: 1.6;
}

/* mPOS impact cards — fafafa bg, no border */
#mpos-detail .case-meta-item,
#mpos-process .cs-step .case-meta-item {
  background: #FAFAFAee;
  border: none;
}

#mpos-detail .case-meta-item h3,
#mpos-meta .case-meta-item h3,
#mpos-actions .cs-step {
  display: flex;
  flex-direction: column;
}

#mpos-actions .cs-step-label {
  font-family: var(--font-body);
  font-size: 1.1rem;
  font-weight: 600;
  color: #344054;
  text-transform: none;
  display: inline;
  margin-bottom: 0;
}

#mpos-actions .cs-step h3 {
  font-family: var(--font-body);
  font-size: 1.1rem;
  color: #344054;
  display: inline;
  margin-bottom: 0;
}

#mpos-actions .cs-step-heading {
  display: flex;
  align-items: baseline;
  gap: 0.4rem;
  margin-bottom: 0.75rem;
}

#mpos-actions .video-container.video-split,
#mpos-workflow .video-container.video-split {
  padding: 0.5rem;
  width: 100%;
}

#mpos-workflow .video-container {
  margin-top: 2rem;
}

#mpos-actions .cs-step .video-container,
#mpos-actions .cs-step .svg-split,
#mpos-actions .cs-step .cs-image {
  margin-top: 1.5rem;
}

#mpos-actions .cs-step .cs-body {
  margin-top: 1.5rem;
  margin-bottom: 0;
}

/* mPOS meta — single container, no individual borders */
#mpos-meta .case-meta {
  background: #FAFAFAee;
  border-radius: var(--radius);
  padding: 1.5rem;
}

#mpos-meta .case-meta-item {
  border: none;
  padding: 0;
}

#mpos-meta .cs-list {
  margin-bottom: 0;
  gap: 0.25rem;
  font-size: 1.1rem;
}

/* ── Case Study Hero ───────────────────────────────────── */
#mpos-hero {
  padding-top: 4rem;
  padding-bottom: 1rem;
}

#mpos-hero h1 {
  color: #3F6B4B;
}

#hero h1 {
  color: #3F6B4B;
}

#mpos-meta,
#mpos-video {
  padding: 2rem 0;
}

#mpos-video .video-container {
  width: 100%;
  display: flex;
  justify-content: center;
  background: #FDE6CFee;
}

#mpos-video .video-container video {
  width: 66.667%;
}


#mpos-hero .tagline {
  font-size: 2rem;
  letter-spacing: normal;
  opacity: 0.75;
}

/* Remove all dashed dividers and set consistent spacing for mPOS */
#mpos-meta,
#mpos-video,
#mpos-detail,
#mpos-problem,
#mpos-process,
#mpos-solutions,
#mpos-workflow,
#mpos-outcome,
#mpos-outcome-cards,
#mpos-reflection,
#mpos-actions {
  border-top: none;
  padding: 2rem 0;
}

#mpos-actions .cs-step:last-child .cs-image {
  margin-bottom: 0;
}

#mpos-outcome {
  padding-top: 0;
}

#mpos-problem .cs-body,
#mpos-problem .cs-list,
#mpos-process .cs-body,
#mpos-process .cs-list,
#mpos-workflow .cs-body,
#mpos-workflow .cs-list,
#mpos-actions .cs-body,
#mpos-actions .cs-list,
#mpos-outcome .cs-body,
#mpos-outcome .cs-list,
#mpos-detail .cs-body,
#mpos-detail .cs-list,
#mpos-outcome-cards .cs-body,
#mpos-outcome-cards .cs-list,
#mpos-reflection .cs-body,
#mpos-reflection .cs-list {
  max-width: 100%;
}

#mpos-outcome .cs-callout {
  max-width: 100%;
}

#mpos-outcome-cards .case-meta {
  margin-top: 2rem;
}

#mpos-outcome-cards .case-meta-item {
  border: none;
  background: #FAFAFA;
}

#mpos-outcome .case-meta {
  margin-top: 1.5rem;
}

#mpos-outcome .case-meta-item {
  border: none;
  background: #FAFAFAee;
}

#mpos-problem h2,
#mpos-process h2,
#mpos-solutions h2,
#mpos-workflow h2,
#mpos-outcome h2,
#mpos-reflection h2,
#mpos-detail h2 {
  margin-bottom: 1.5rem;
}

.cs-body {
  font-size: 1.1rem;
  color: #344054;
  max-width: 720px;
  margin-bottom: 1rem;
}

.cs-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1rem;
  max-width: 720px;
  font-size: 1.1rem;
}

.cs-list li {
  padding-left: 1.75rem;
  text-indent: -1.75rem;
}

.cs-list li::before {
  content: none;
}

.cs-list-emoji {
  padding-left: 1.75rem;
  text-indent: -1.75rem;
}

.cs-step {
  margin-bottom: 3rem;
}

.cs-step-label {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 0.4rem;
}

.cs-step h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.75rem;
}

.cs-step .case-meta {
  margin-top: 1.25rem;
}

.cs-image {
  width: 100%;
  display: block;
  margin-top: 2rem;
  margin-bottom: 2rem;
  border-radius: var(--radius);
}

.cs-callout {
  background: var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  max-width: 720px;
}

.cs-callout h3 {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.4rem;
}

.cs-callout p {
  font-size: 0.9rem;
  color: #344054;
}

.video-container {
  background: #FDE6CFee;
  border-radius: var(--radius);
  padding: 1.5rem;
  width: 66.667%;
}

.video-container.video-centered {
  width: 100%;
  display: flex;
  justify-content: center;
}

.video-container.video-centered video {
  width: 66.667%;
}

.video-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  background: #FAFAFAee;
}

.video-split-divider {
  display: none;
}

.svg-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
}

.svg-split img {
  width: 100%;
  display: block;
}

@media (max-width: 767px) {
  .svg-split {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
}

.video-split-item {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.video-label {
  font-family: var(--font-body);
  font-size: 0.875rem;
  color: var(--muted);
  margin: 0;
}

.video-container video {
  width: 100%;
  max-height: 600px;
  object-fit: contain;
  display: block;
  border-radius: var(--radius);
}

/* ── Case Study Breakpoints ─────────────────────────────── */

/* Mobile — up to 767px */
@media (max-width: 767px) {
  .case-meta {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .video-split {
    grid-template-columns: 1fr;
    background: transparent;
    gap: 1rem;
  }

  .video-split-divider {
    display: block;
    height: 1.5rem;
    background: var(--bg);
  }

  #mpos-actions .video-container {
    background: transparent;
    padding: 0;
    border-radius: 0;
  }

  #mpos-hero h1 {
    font-size: clamp(1.8rem, 8vw, 2.6rem);
  }

  #mpos-hero .tagline {
    font-size: 2rem;
  }

  nav {
    padding: 0.75rem 1rem;
  }

  nav ul {
    gap: 0.25rem;
  }

  nav ul a {
    font-size: 0.85rem;
    padding: 0.75rem 0.75rem;
    min-height: 44px;
  }
}

/* Tablet — 768px to 1023px */
@media (min-width: 768px) and (max-width: 1023px) {
  .case-meta {
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
  }

  .case-meta-item:last-child {
    grid-column: 1 / -1;
  }

  #mpos-hero h1 {
    font-size: clamp(2rem, 5vw, 3rem);
  }
}

/* Desktop — 1024px and up */
@media (min-width: 1024px) {
  .case-meta {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ── Resume ────────────────────────────────────────────── */
#resume p {
  color: var(--muted);
}

#resume a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 500;
}

#resume a:hover {
  text-decoration: underline;
}

/* ── Folder Stack ──────────────────────────────────────── */
.folder-track {
  position: relative;
  margin-top: 48px;
}

.folder-panel {
  height: 800px;
  position: sticky;
  top: 120px;
  transition: transform 0.2s ease;
}

.folder-panel:hover {
  transform: translateY(-2rem);
  cursor: pointer;
}

.folder {
  min-height: 26rem;
  padding: 1.5rem 1rem 1rem;
  background: var(--bg);
  border: 2px solid #344054;
  border-radius: 8px 8px 8px 8px;
}

/* Tab label */
.folder::before {
  content: attr(data-tab);
  position: absolute;
  top: -36px;
  left: 16px;
  height: 36px;
  padding: 0 16px;
  display: flex;
  align-items: center;
  border: 2px solid #344054;
  border-bottom: none;
  border-radius: 8px 8px 0px 0;
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  background: var(--bg);
}

/* Media area inside mPOS folder */
.folder-media {
  margin-top: 1rem;
  overflow: hidden;
  height: 400px;
}

.folder-media--small {
  height: auto;
}

.folder-media video,
.folder-media img {
  width: 100%;
  height: auto;
  display: block;
}

/* mPOS tab color */
.folder-panel:nth-child(1) .folder::before {
  background: #FDE6CFee;
  left: 16px;
}

/* mPOS folder */
.folder-track .folder-panel:nth-child(1) .folder { background: #FDE6CFee; cursor: none; }

/* ── Footer ────────────────────────────────────────────── */
footer {
  text-align: center;
  padding: 2rem var(--gap);
  color: var(--muted);
  font-size: 0.8rem;
  border-top: 1px dashed var(--border);
}

@media (min-width: 641px) {
  footer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 5;
    background: rgba(249, 244, 237, 0.88);
    backdrop-filter: blur(10px);
  }

  main {
    padding-bottom: 5rem;
  }
}