@import url('https://fonts.googleapis.com/css2?family=Poppins:ital,wght@0,300;0,400;0,500;0,600;0,700;1,400&family=Inter:wght@300;400;500;600&display=swap');

/* ─────────────────────────────────────────
   DESIGN SYSTEM — CSS VARIABLES
───────────────────────────────────────── */
:root {
  --color-bg:               #F6F9FD;
  --color-surface:          #FFFFFF;
  --color-border:           #E5E7EB;
  --color-text-primary:     #111827;
  --color-text-on-accent:   #FFFFFF;
  --color-text-secondary:   #6B7280;
  --color-text-muted:       #9CA3AF;
  --color-primary:          #12355B;
  --color-secondary:        #2A9D8F;
  --color-highlight:        #FF5A5F;
  --color-highlight-hover:  color-mix(in srgb, var(--color-highlight) 88%, black);
  --color-accent:           #12355B;
  --color-accent-hover:     #0E2947;
  --color-accent-subtle:    #EEF6FF;
  --color-success:          #1F7A4C;
  --color-error:            #B42318;

  --font-display:           "Poppins", "Inter", system-ui, sans-serif;
  --font-body:              "Inter", system-ui, sans-serif;

  --text-xs:                0.75rem;
  --text-sm:                0.875rem;
  --text-base:              1rem;
  --text-lg:                1.125rem;
  --text-xl:                1.375rem;
  --text-2xl:               1.75rem;
  --text-3xl:               2.25rem;
  --text-4xl:               3.25rem;

  --space-1:                0.25rem;
  --space-2:                0.5rem;
  --space-3:                0.75rem;
  --space-4:                1rem;
  --space-5:                1.5rem;
  --space-6:                2rem;
  --space-8:                3rem;
  --space-10:               4rem;
  --space-12:               5rem;
  --space-16:               8rem;

  --radius-sm:              4px;
  --radius-md:              8px;
  --radius-lg:              12px;
  --radius-xl:              16px;
  --radius-full:            9999px;

  --shadow-xs:              0 1px 2px rgba(26,25,23,0.05);
  --shadow-sm:              0 2px 8px rgba(26,25,23,0.06);
  --shadow-md:              0 4px 16px rgba(26,25,23,0.08);
  --shadow-lg:              0 8px 32px rgba(26,25,23,0.10);

  --transition-fast:        120ms ease;
  --transition-base:        200ms ease;
  --transition-slow:        350ms ease;

  --max-width-content:      720px;
  --max-width-wide:         1140px;
}

/* ─────────────────────────────────────────
   RESET & BASE
───────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--color-text-primary);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

site-footer {
  display: block;
  margin-top: auto;
}

body.modal-open {
  overflow: hidden;
}

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }

/* ─────────────────────────────────────────
   PAGE SYSTEM (single-file navigation)
───────────────────────────────────────── */
.page { display: none; animation: fadeIn var(--transition-slow) forwards; }
.page.active { display: block; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ─────────────────────────────────────────
   NAVIGATION
───────────────────────────────────────── */
#main-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--color-surface) 90%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  transition: background var(--transition-base), border-color var(--transition-base),
    box-shadow var(--transition-base), backdrop-filter var(--transition-base);
  -webkit-transition: background var(--transition-base), border-color var(--transition-base),
    box-shadow var(--transition-base), -webkit-backdrop-filter var(--transition-base);
  isolation: isolate;
}

#main-nav::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -14px;
  height: 14px;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-6px);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.5), transparent);
  -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.5), transparent);
  transition: opacity var(--transition-base), transform var(--transition-base);
}

#main-nav.nav-scrolled {
  background: color-mix(in srgb, var(--color-surface) 78%, transparent);
  border-bottom-color: color-mix(in srgb, var(--color-border) 65%, transparent);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
  backdrop-filter: blur(16px) saturate(1.15);
  -webkit-backdrop-filter: blur(16px) saturate(1.15);
}

#main-nav.nav-scrolled::after {
  opacity: 1;
  transform: translateY(0);
}

.nav-inner {
  max-width: var(--max-width-wide);
  margin: 0 auto;
  padding: var(--space-4) var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  transition: opacity var(--transition-fast);
}
.nav-logo:hover { opacity: 0.65; }

.nav-logo img {
  display: block;
  height: 36px;
  width: auto;
}

.nav-logoname {
  font-size: var(--text-sm);
  font-weight: 900;
  color: var(--color-highlight);
  letter-spacing: -0.3px;
}

.nav-links {
  display: flex;
  gap: var(--space-8);
  list-style: none;
}

.nav-links a {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: color var(--transition-fast);
  font-weight: 400;
}
  

.nav-links a {
  position: relative;
  color: var(--color-text-primary);
  text-decoration: none;
}

.nav-links a.active {
  font-weight: 600;
}

.nav-links a.active::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 100%;
  height: 2px;
  background-color: var(--color-highlight);
}

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

.nav-links a.nav-cta,
.nav-links a.nav-cta:hover {
  color: var(--color-text-on-accent);
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  line-height: 1;
}

.nav-cta__arrow {
  display: inline-block;
  transition: transform var(--transition-fast);
}

.nav-cta:hover .nav-cta__arrow {
  transform: translateX(2px);
}

/* Mobile nav */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
  flex-direction: column;
  gap: 5px;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--color-text-primary);
  transition: var(--transition-base);
}

/* ─────────────────────────────────────────
   LAYOUT UTILITIES
───────────────────────────────────────── */
.container {
  max-width: var(--max-width-wide);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.container--narrow {
  max-width: var(--max-width-content);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.section {
  padding: var(--space-16) 0;
}

.section--tight {
  padding: var(--space-10) 0;
}

/* ─────────────────────────────────────────
   LABEL / TAG
───────────────────────────────────────── */
.label {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.tag {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-highlight);
  background: #FFF1ED;
  border: 1px solid #FFCFC4;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-sm);
}

/* ─────────────────────────────────────────
   BUTTONS
───────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-md);
  cursor: pointer;
  border: none;
  transition: all var(--transition-base);
  text-decoration: none;
}

.btn--sm {
  font-size: var(--text-xs);
  padding: 0.5rem 0.75rem;
  gap: var(--space-1);
  line-height: 1;
}

.btn--primary {
  background: var(--color-accent);
  color: var(--color-text-on-accent);
}
.btn--primary:hover {
  background: var(--color-accent-hover);
  box-shadow: var(--shadow-sm);
  transform: translateY(-1px);
}

.btn--primary i {
  transition: transform var(--transition-base);
}

.btn--primary:hover i {
  transform: translateY(2px);
}

.btn--primary:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.btn--secondary {
  background: transparent;
  color: var(--color-accent);
  border: 1.5px solid var(--color-accent);
}
.btn--secondary:hover {
  background: var(--color-accent-subtle);
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.btn--ghost {
  background: transparent;
  color: var(--color-accent);
  padding: var(--space-1) 0;
  font-size: var(--text-sm);
}
.btn--ghost:hover { text-decoration: underline; }

/* ─────────────────────────────────────────
   SCROLL-TO-TOP BUTTON
───────────────────────────────────────── */
.scroll-to-top {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background: var(--color-highlight);
  color: var(--color-text-on-accent);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  line-height: 1;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-sm);
  z-index: 1000;
}

.scroll-to-top::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 100%;
  right: 0;
  margin-bottom: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: var(--color-text-primary);
  color: var(--color-text-on-accent);
  font-size: var(--text-xs);
  font-weight: 500;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base);
}

.scroll-to-top:hover::after {
  opacity: 1;
}

.scroll-to-top:hover {
  background: var(--color-highlight-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.scroll-to-top:active {
  transform: translateY(0);
}

@media (max-width: 640px) {
  .scroll-to-top {
    bottom: var(--space-4);
    right: var(--space-4);
    width: 44px;
    height: 44px;
    font-size: 1.125rem;
  }
}

/* ─────────────────────────────────────────
   ── PAGE: HOME ──
───────────────────────────────────────── */

/* Hero */
.hero {
  padding: var(--space-16) 0 var(--space-12);
}

.hero__eyebrow {
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-3);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.hero__eyebrow::before {
  content: '';
  display: inline-block;
  width: 24px;
  height: 1px;
  background: var(--color-text-muted);
}

.hero__headline {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.5vw, 3.25rem);
  font-weight: 600;
  line-height: 1.2;
  color: var(--color-text-primary);
  max-width: 1100px;
  margin-bottom: var(--space-4);
  letter-spacing: -0.02em;
}

.hero__secondary {
  color: var(--color-text-secondary);
}

.hero__underline {
  display: inline-block;
  border-bottom: 5px solid var(--color-highlight);
  border-radius: 2px;
  padding-bottom: 2px;
}

.hero__sub {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  /* max-width: 900px; */ 
  line-height: 1.6;
  margin-bottom: var(--space-8);
}

.hero__actions {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.hero__scroll-hint {
  margin-top: var(--space-12);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.hero__scroll-hint::after {
  content: '';
  display: block;
  width: 40px;
  height: 1px;
  background: var(--color-border);
}

/* Work section */
.work-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: var(--space-8);
  padding-bottom: var(--space-5);
  border-bottom: 1px solid var(--color-border);
}

.work-header h2 {
  font-family: var(--font-body);
  font-size: var(--text-2xl);
  font-weight: 500;
}

/* Project grid */
.project-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}

.project-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.project-card:hover {
  box-shadow: var(--shadow-md);
  border: 0.5px solid var(--color-highlight);
  transform: translateY(-3px);
}

.project-card__thumb-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 16/9;
  overflow: hidden;
}

.project-card__thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Placeholder image using SVG */
.project-card__thumb-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  font-weight: 500;
}

.project-card__thumb-placeholder[hidden] {
  display: none;
}

.project-card__body {
  padding: var(--space-6);
}

.project-card__tags {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
  margin-bottom: var(--space-3);
}

.project-card__title {
  font-size: var(--text-xl);
  font-weight: 500;
  margin-bottom: var(--space-2);
  line-height: 1.3;
}

.project-card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-5);
}

.project-card__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  letter-spacing: 0.04em;
}

.project-card__arrow {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-highlight);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-highlight);
  transition: all var(--transition-fast);
  font-size: 14px;
}

.project-card:hover .project-card__arrow {
  background: var(--color-highlight);
  border-color: var(--color-highlight);
  color: #fff;
}

/* Card colors */
.card-color-1 { background-color: #EEF6FF; }
.card-color-2 { background-color: #EAF7F5; }
.card-color-3 { background-color: #FFF1ED; }
.card-color-4 { background-color: var(--color-bg); }

/* ─────────────────────────────────────────
   ── PAGE: CASE STUDY ──
───────────────────────────────────────── */
.case-hero {
  padding: var(--space-12) 0 var(--space-10);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--space-10);
}

.case-hero__back {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  cursor: pointer;
  margin-bottom: var(--space-8);
  transition: color var(--transition-fast);
}
.case-hero__back:hover { color: var(--color-highlight); }
.case-hero__back::before { content: '←'; }

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

.case-hero__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, var(--text-3xl));
  font-weight: 600;
  line-height: 1.15;
  max-width: 680px;
  margin-bottom: var(--space-5);
}

.case-hero__lead {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  max-width: 580px;
  line-height: 1.65;
  margin-bottom: var(--space-8);
}

.case-meta {
  display: flex;
  gap: var(--space-8);
  flex-wrap: wrap;
}

.case-meta__item {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.case-meta__label {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  font-weight: 500;
}

.case-meta__value {
  font-size: var(--text-sm);
  color: var(--color-text-primary);
  font-weight: 500;
}

.case-cover {
  width: 100%;
  aspect-ratio: 16/7;
  border-radius: var(--radius-xl);
  position: relative;
  overflow: hidden;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: var(--space-12);
  background: #EBF0F8;
}

.case-cover__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.case-cover__placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.case-cover__placeholder[hidden] {
  display: none;
}

/* Case study body */
.case-body {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: var(--space-8);
  align-items: start;
}

.case-sidebar {
  position: sticky;
  top: 80px;
}

.case-sidebar__nav {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.case-sidebar__nav a {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  cursor: pointer;
  transition: color var(--transition-fast);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.case-sidebar__nav a::before {
  content: '';
  width: 16px;
  height: 1px;
  background: var(--color-border);
  transition: all var(--transition-fast);
}

.case-sidebar__nav a:hover,
.case-sidebar__nav a.active {
  color: var(--color-highlight);
  font-weight: 800;
}

.case-sidebar__nav a:hover::before,
.case-sidebar__nav a.active::before {
  width: 24px;
  background: var(--color-highlight);
}

.case-content section {
  margin-bottom: var(--space-12);
  padding-bottom: var(--space-12);
  border-bottom: 1px solid var(--color-border);
}

.case-content section:last-child {
  border-bottom: none;
}

.case-section__label {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-highlight);
  font-weight: 500;
  margin-bottom: var(--space-4);
}

.case-section__title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 400;
  margin-bottom: var(--space-5);
  line-height: 1.2;
}

.case-content p {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  line-height: 1.75;
  margin-bottom: var(--space-4);
}

.case-content strong { color: var(--color-text-primary); font-weight: 500; }

.case-question {
  font-size: var(--text-lg);
  font-style: italic;
  color: var(--color-text-primary);
  border-left: 2px solid var(--color-highlight);
  padding-left: var(--space-5);
  margin: var(--space-6) 0;
  line-height: 1.5;
}

.case-image-placeholder {
  width: 100%;
  aspect-ratio: 16/9;
  background: #F0EDE8;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin: var(--space-6) 0;
}

.case-image-frame {
  position: relative;
  width: 100%;
  aspect-ratio: 16/9;
  margin: var(--space-6) 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #F0EDE8;
}

.case-image-frame__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.case-image-frame .case-image-placeholder {
  position: absolute;
  inset: 0;
  margin: 0;
}

.case-image-placeholder[hidden] {
  display: none;
}

.case-content p.case-image-caption {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-align: center;
  font-style: italic;
  margin-top: calc(var(--space-3) * -1);
  margin-bottom: var(--space-6);
}

/* Approach list */
.approach-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  margin: var(--space-5) 0;
}

.approach-list li {
  display: grid;
   grid-template-columns: minmax(0, 100px) 1fr;
  gap: var(--space-4);
  align-items: baseline;
}

.approach-list__method {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-highlight);
  font-weight: 800;
  padding-top: 2px;
   min-width: 0;
   overflow-wrap: anywhere;
}

.approach-list__insight {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* Results table */
.results-table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-5) 0;
}

.results-table th {
  text-align: left;
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  font-weight: 500;
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-border);
}

.results-table td {
  padding: var(--space-4);
  font-size: var(--text-sm);
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-secondary);
}

.results-table td:first-child { color: var(--color-text-primary); font-weight: 500; }

.results-table td.positive {
  color: var(--color-text-primary);
  font-weight: 300;
}

/* Case nav footer */
.case-nav-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-8) 0;
  border-top: 1px solid var(--color-border);
  margin-top: var(--space-8);
}

.case-nav-footer a {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: color var(--transition-fast);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.case-nav-footer a:hover { color: var(--color-accent); }

/* ─────────────────────────────────────────
   ── PAGE: ABOUT ──
───────────────────────────────────────── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: start;
}

.about-photo-wrap {
  position: relative;
}

.about-photo {
  width: 100%;
  aspect-ratio: 4/5;
  background: #EBF0F8;
  border-radius: var(--radius-xl);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.about-photo__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.about-photo__placeholder[hidden] {
  display: none;
}

.about-photo-badge {
  position: absolute;
  bottom: var(--space-5);
  right: calc(var(--space-5) * -1);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4) var(--space-5);
  box-shadow: var(--shadow-md);
  font-size: var(--text-sm);
  font-weight: 500;
}

.about-photo-badge small {
  display: block;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  font-weight: 400;
  margin-top: 2px;
}

.about-content__eyebrow {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-highlight);
  font-weight: 500;
  margin-bottom: var(--space-5);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.about-content__eyebrow::before {
  content: '';
  width: 24px;
  height: 1px;
  background: var(--color-highlight);
}

.about-content h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, var(--text-3xl));
  font-weight: 600;
  line-height: 1.15;
  margin-bottom: var(--space-6);
  letter-spacing: -0.01em;
}

.about-content p {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  line-height: 1.75;
  margin-bottom: var(--space-5);
}

.about-content p strong {
  color: var(--color-text-primary);
  font-weight: 500;
}

.about-divider {
  width: 32px;
  height: 1px;
  background: var(--color-border);
  margin: var(--space-8) 0;
}

.skills-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
  margin-bottom: var(--space-8);
}

.skills-group__label {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  font-weight: 500;
  margin-bottom: var(--space-3);
}

.skills-group__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.skills-group__list li {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.skills-group__list li::before {
  content: '';
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--color-accent);
  flex-shrink: 0;
}

.about-cta {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
  padding-top: var(--space-2);
}

/* Contact page */
.contact-page {
  padding: var(--space-12) 0 var(--space-16);
}

.contact-page__intro {
  max-width: 680px;
  margin-bottom: var(--space-8);
}

.contact-page__eyebrow {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  font-weight: 500;
  margin-bottom: var(--space-4);
}

.contact-page h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, var(--text-3xl));
  font-weight: 600;
  line-height: 1.15;
  margin-bottom: var(--space-4);
}

.contact-page__lead {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  line-height: 1.75;
}

.contact-page__email-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
  font-weight: 500;
}

.contact-page__email-link:hover {
  color: var(--color-accent-hover);
}

.contact-page__email-link i {
  font-size: 0.875em;
}

.contact-form {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  padding: var(--space-8);
  max-width: 760px;
}

.contact-form__group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-bottom: var(--space-5);
}

.contact-form__group:last-of-type {
  margin-bottom: var(--space-6);
}

.contact-form label {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-primary);
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #fff;
  color: var(--color-text-primary);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  padding: var(--space-3) var(--space-4);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.contact-form textarea {
  min-height: 180px;
  resize: vertical;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-subtle);
}

.contact-form__hint {
  margin-top: var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.required-mark {
  color: var(--color-accent);
  margin-left: 1px;
}

.btn-tooltip-wrapper {
  position: relative;
  display: inline-block;
}

.btn-tooltip {
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-text-primary);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 400;
  white-space: nowrap;
  padding: 5px 10px;
  border-radius: var(--radius-sm);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.15s ease;
  z-index: 10;
}

.btn-tooltip::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 5px solid transparent;
  border-top-color: var(--color-text-primary);
}

.btn-tooltip-wrapper:has(button:disabled):hover .btn-tooltip {
  opacity: 1;
}

.contact-form__success {
  font-size: var(--text-base);
  color: var(--color-text-primary);
  padding: var(--space-4) 0;
}

.contact-form__back-btn {
  margin-top: var(--space-4);
}

.contact-form__error {
  margin-top: var(--space-3);
  font-size: var(--text-sm);
  color: #c0392b;
}

.contact-form__field-error {
  display: inline-block;
  margin-top: var(--space-1);
  font-size: 0.75rem;
  color: #c0392b;
  line-height: 1.5;
}

.contact-form__field-error:empty {
  display: none;
}

.contact-form input.is-invalid,
.contact-form textarea.is-invalid {
  border-color: #c0392b;
  box-shadow: 0 0 0 3px rgba(192, 57, 43, 0.15);
}

/* Contact strip */
.contact-strip {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-10) 0;
  margin-top: var(--space-16);
}

.contact-strip__inner {
  max-width: var(--max-width-wide);
  margin: 0 auto;
  padding: 0 var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
}

.contact-strip h2 {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 400;
}

.contact-strip p {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin-top: var(--space-2);
}

.contact-strip__link {
  font-size: var(--text-lg);
  font-weight: 500;
  color: var(--color-accent);
  transition: opacity var(--transition-fast);
  white-space: nowrap;
}
.contact-strip__link:hover { opacity: 0.7; text-decoration: underline; }

/* ─────────────────────────────────────────
   FOOTER
───────────────────────────────────────── */
footer {
  background: var(--color-accent);
  padding: 24px 0;
}

.footer-inner {
  max-width: var(--max-width-wide);
  margin: 0 auto;
  padding: 0 var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: var(--text-base);
  color: var(--color-text-on-accent);
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 16px;
  height: fit-content;
}

.footer-logo {
  display: block;
  height: auto;
  width: auto;
}

.footer-identity {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.footer-name {
  font-size: 14px;
}

.footer-email {
  font-size: var(--text-sm);
  color: var(--color-text-on-accent);
  transition: opacity var(--transition-fast);
}

.footer-email:hover {
  opacity: 0.7;
  text-decoration: underline;
}

.footer-links {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-on-accent);
  transition: opacity var(--transition-fast);
  white-space: nowrap;
}

.footer-links a {
  cursor: pointer;
  transition: color var(--transition-fast);
}
.footer-links a:hover { opacity: 0.7; text-decoration: underline;  }

.footer-links .social-icon {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  padding: 4px;
  transition:
    background var(--transition-fast),
    transform  var(--transition-fast),
    opacity    var(--transition-fast);
}

.footer-links .social-icon:hover {
  background: rgba(255, 255, 255, 0.15);
  transform: translateY(-2px);
  opacity: 1;
  text-decoration: none;
}

/* Tooltip */
.footer-links [data-tooltip] {
  position: relative;
}

.footer-links [data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-text-primary);
  color: #fff;
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.04em;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.footer-links [data-tooltip]:hover::after {
  opacity: 1;
}

.footer-links .social-icon img {
  width: 100%;
  height: 100%;
  display: block;
  filter: brightness(0) invert(1);
}

/* ─────────────────────────────────────────
   PASSWORD PROTECTION
───────────────────────────────────────── */

/* Utility: visually hidden but accessible */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Lock badge on protected cards */
.project-card--protected .project-card__thumb-wrap {
  position: relative;
}

.project-card--protected .project-card__thumb-wrap::after {
  content: '\f023';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
  width: 28px;
  height: 28px;
  border-radius: var(--radius-full);
  background: rgba(26, 25, 23, 0.55);
  color: #fff;
  font-size: 11px;
  line-height: 28px;
  text-align: center;
}

/* Modal overlay */
.modal-overlay,
.pw-overlay {
  position: fixed;
  inset: 0;
  background: color-mix(in srgb, var(--color-text-primary) 50%, transparent);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: var(--space-4);
}

.modal-overlay[hidden],
.pw-overlay[hidden] {
  display: none;
}

.modal,
.pw-modal {
  background: var(--color-surface);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  max-width: 400px;
  width: 100%;
  box-shadow: var(--shadow-lg);
  position: relative;
  text-align: center;
}

.modal__close,
.pw-modal__close {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  background: transparent;
  border: none;
  font-size: var(--text-base);
  cursor: pointer;
  color: var(--color-text-muted);
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition-fast);
}

.modal__close:hover,
.pw-modal__close:hover {
  background: var(--color-bg);
}

.pw-modal__icon {
  font-size: 1.75rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-4);
}

.modal__title,
.pw-modal__title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 500;
  margin-bottom: var(--space-2);
}

.pw-modal__desc {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-6);
}

.pw-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.modal__field {
  position: relative;
}

.modal__toggle {
  position: absolute;
  top: 50%;
  right: var(--space-3);
  transform: translateY(-50%);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  padding: 0;
  border: none;
  border-radius: var(--radius-full);
  background: transparent;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.modal__toggle:hover {
  background: var(--color-surface);
}

.modal__toggle:focus-visible {
  outline: none;
  color: var(--color-accent);
}

.modal__toggle-icon {
  width: 1.125rem;
  height: 1.125rem;
}

.modal__toggle-icon--hide {
  display: none;
}

.modal__toggle[aria-pressed='true'] .modal__toggle-icon--show {
  display: none;
}

.modal__toggle[aria-pressed='true'] .modal__toggle-icon--hide {
  display: block;
}

.modal__input,
.pw-input {
  width: 100%;
  padding: var(--space-3) var(--space-10) var(--space-3) var(--space-4);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--text-base);
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text-primary);
  transition: border-color var(--transition-fast);
  box-sizing: border-box;
}

.modal__input:focus,
.pw-input:focus {
  outline: none;
  border-color: var(--color-accent);
}

.modal__error,
.pw-error {
  font-size: var(--text-sm);
  color: var(--color-error);
  min-height: 1.2em;
  margin: 0;
}

.modal__error[hidden],
.pw-error[hidden] {
  display: none;
}

.pw-submit {
  width: 100%;
}

/* ─────────────────────────────────────────
   RESPONSIVE
───────────────────────────────────────── */
@media (max-width: 900px) {
  .project-grid { grid-template-columns: 1fr; }
  .about-grid { grid-template-columns: 1fr; gap: var(--space-8); }
  .about-photo-wrap { max-width: 360px; }
  .about-photo-badge { right: 0; }
  .case-body { grid-template-columns: 1fr; }
  .case-sidebar { display: none; }
  .contact-strip__inner { flex-direction: column; text-align: center; }
}

@media (max-width: 640px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-5) var(--space-6);
    gap: var(--space-4);
  }
  .nav-links.open .nav-cta {
    width: fit-content;
  }
  .section { padding: var(--space-10) 0; }
  .hero { padding: var(--space-10) 0 var(--space-8); }
  .approach-list li { grid-template-columns: 1fr; gap: var(--space-1); }
  .skills-grid { grid-template-columns: 1fr; }
  .case-nav-footer { flex-direction: column; gap: var(--space-4); }
  .contact-form { padding: var(--space-5); }
  .footer-inner { flex-direction: column; gap: var(--space-3); text-align: center; }
  .footer-brand { justify-content: center; }
  .footer-identity { align-items: center; }
}