/* ============================================
   TETIANA K. — Portfolio
   Webflow-inspired design
   ============================================ */

/* --- Font --- */
@font-face {
  font-family: 'WF Visual Sans';
  src: url('../fonts/WFVisualSansVF.woff2') format('woff2');
  font-weight: 100 900;
  font-display: swap;
}

/* --- Reset & Base --- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --color-bg: #ffffff;
  --color-bg-alt: #f5f5f7;
  --color-bg-card: #f5f5f7;
  --color-text: #080808;
  --color-text-secondary: #4a4a4a;
  --color-text-muted: #8a8a8a;
  --color-border: #e0e0e0;
  --color-accent: #365EFF;
  --color-dark: #080808;
  --color-white: #ffffff;

  --font-main: 'WF Visual Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --container-max: 1600px;
  --container-wide: 1600px;
  --section-padding: clamp(80px, 8vw, 120px);
  --section-padding-sm: clamp(48px, 5vw, 72px);

  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;

  --transition: 0.25s ease;
  --transition-slow: 0.4s ease;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-main);
  font-weight: 400;
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  display: block;
}

ul, ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-weight: 500;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--color-dark);
  text-wrap: balance;
}

p {
  text-wrap: pretty;
}

.heading-xl {
  font-size: clamp(3.5rem, 7vw, 6rem);
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: -0.035em;
}

.heading-lg {
  font-size: clamp(2.5rem, 4.5vw, 4rem);
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: -0.03em;
}


.body-md {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
}

.label,
.section__label {
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-accent);
  margin-bottom: 0.75rem;
}

/* --- Gradient Text Animation --- */
.gradient-text {
  background: linear-gradient(
    120deg,
    var(--color-accent) 0%,
    #C7B7E9 33%,
    var(--color-accent) 66%,
    #C7B7E9 100%
  );
  background-size: 250% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: gradient-shift 6s ease infinite;
}

@keyframes gradient-shift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* --- Container --- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 clamp(24px, 5vw, 64px);
}

.container--wide {
  max-width: var(--container-wide);
}

/* --- Navbar --- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
}

.navbar__inner {
  display: flex;
  align-items: center;
  height: 72px;
  max-width: var(--container-wide);
  margin: 0 auto;
  padding: 0 clamp(24px, 5vw, 64px);
}

.navbar__logo {
  margin-right: 48px;
}

.navbar__logo svg {
  height: 20px;
  width: auto;
}

.navbar__links {
  display: flex;
  gap: 32px;
  align-items: center;
  margin-right: auto;
}

.navbar__links a {
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-dark);
  transition: color var(--transition);
}

.navbar__links a:hover,
.navbar__links a.active {
  color: var(--color-accent);
}

.navbar__right,
.navbar__actions {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-left: auto;
}

.navbar__email,
.navbar__actions > a:not(.btn) {
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-text);
  transition: color var(--transition);
}

.navbar__email:hover,
.navbar__actions > a:not(.btn):hover {
  color: var(--color-accent);
}

.navbar__email-copy {
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-text);
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  position: relative;
  transition: color 0.25s ease;
}

.navbar__email-copy:hover {
  color: var(--color-accent);
}

.navbar__tooltip {
  position: absolute;
  top: calc(100% + 0.5rem);
  left: 50%;
  transform: translateX(-50%);
  background: #00C32D;
  color: var(--color-white);
  font-size: 0.8125rem;
  font-weight: 500;
  padding: 0.375rem 0.75rem;
  border-radius: 6px;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.navbar__tooltip.show {
  opacity: 1;
}

/* Mobile menu button */
.navbar__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}

.navbar__toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  transition: var(--transition);
  border-radius: 1px;
}

.navbar__toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.navbar__toggle.active span:nth-child(2) {
  opacity: 0;
}

.navbar__toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 1rem 1.75rem;
  font-size: 1rem;
  font-weight: 500;
  border-radius: 6px;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn--primary {
  background: var(--color-dark);
  color: var(--color-white);
}

.btn--primary:hover {
  background: var(--color-accent);
}

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

.btn--secondary:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.btn--sm {
  padding: 16px 24px;
  font-size: 1rem;
}

/* --- Sections --- */
.section {
  padding: var(--section-padding) 0;
}

.section--alt {
  background: var(--color-bg-alt);
}

.section--side-projects {
  padding-top: 0;
}

.section--cta-compact {
  padding-top: 0;
}

.section--certificates {
  padding-top: 0;
}

.section--work-experience {
  padding-top: 0;
}

/* --- Experience page layout: content + sticky sidebar TOC --- */
.experience-wrapper {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 80px;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 clamp(24px, 5vw, 64px);
  align-items: start;
}

.experience-wrapper__content > .section {
  padding-left: 0;
  padding-right: 0;
}

.experience-wrapper__content > .section > .container {
  max-width: none;
  padding: 0;
}

.experience-wrapper > aside {
  position: sticky;
  top: 120px;
  padding-top: var(--section-padding-sm);
}

.section-anchors__title {
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  margin: 0 0 16px 0;
  padding-left: 20px;
}

.section-anchors__list {
  display: flex;
  flex-direction: column;
  gap: 2px;
  list-style: none;
  margin: 0;
  padding: 0;
  border-left: 1px solid var(--color-border);
}

.section-anchors__link {
  display: block;
  font-size: 1.0625rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  text-decoration: none;
  padding: 10px 0 10px 20px;
  margin-left: -2px;
  border-left: 2px solid transparent;
  transition: color 0.2s, border-color 0.2s;
  line-height: 1.4;
}

.section-anchors__link:hover {
  color: var(--color-text);
}

.section-anchors__link.is-active {
  color: var(--color-accent);
  border-left-color: var(--color-accent);
  font-weight: 600;
}

@media (max-width: 1280px) {
  .experience-wrapper {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .experience-wrapper > aside {
    display: none;
  }
}

/* --- Experience reveal (show more) --- */
.experience-reveal {
  position: relative;
}

.experience-reveal__collapsed {
  position: relative;
  max-height: 320px;
  overflow: hidden;
}

.experience-reveal__collapsed::before {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  -webkit-mask-image: linear-gradient(to bottom, transparent 0%, transparent 20%, black 100%);
  mask-image: linear-gradient(to bottom, transparent 0%, transparent 20%, black 100%);
  z-index: 3;
}

.experience-reveal__collapsed::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(to bottom, transparent 0%, transparent 10%, var(--color-bg) 95%);
  z-index: 4;
}

.experience-reveal.is-expanded .experience-reveal__collapsed {
  max-height: none;
  overflow: visible;
}

.experience-reveal.is-expanded .experience-reveal__collapsed::before,
.experience-reveal.is-expanded .experience-reveal__collapsed::after {
  display: none;
}

.experience-reveal__collapsed .experience-list .experience-item:first-child {
  background-image: linear-gradient(to right, transparent 20px, var(--color-border) 20px);
  background-position: 0 100%;
  background-size: 100% 1px;
}

.experience-reveal__toggle {
  display: block;
  margin: -48px auto 0;
  padding: 14px 32px;
  background: var(--color-dark);
  color: var(--color-white);
  border: none;
  border-radius: var(--radius-md);
  font-size: 0.9375rem;
  font-weight: 500;
  cursor: pointer;
  position: relative;
  z-index: 5;
  transition: background 0.2s;
}

.experience-reveal__toggle:hover {
  background: var(--color-accent);
}

.experience-reveal.is-expanded .experience-reveal__toggle {
  margin-top: 32px;
}

/* --- Certificates list --- */
.certificates-list {
  display: flex;
  flex-direction: column;
}

.certificate-item {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 48px;
  padding: 20px 0 20px 56px;
  align-items: center;
  background-image: linear-gradient(to right, transparent 20px, var(--color-border) 20px);
  background-repeat: no-repeat;
  background-position: 0 100%;
  background-size: 100% 1px;
}

.certificate-item:first-child {
  background-image:
    linear-gradient(to right, transparent 20px, var(--color-border) 20px),
    linear-gradient(to right, transparent 20px, var(--color-border) 20px);
  background-position: 0 100%, 0 0;
  background-size: 100% 1px, 100% 1px;
}

.certificate-item__date {
  font-size: 1rem;
  color: var(--color-text);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.certificate-item__body {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 14px;
}

.certificate-item__title {
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--color-text);
}

a.certificate-item__title--link {
  text-decoration: none;
  border-bottom: 1px solid currentColor;
  transition: color 0.2s;
}

a.certificate-item__title--link:hover {
  color: var(--color-accent);
}

.certificate-item__provider {
  font-size: 1rem;
  color: var(--color-text);
  font-weight: 400;
}

.section__label {
  margin-bottom: 0.75rem;
}

.section__heading {
  margin-bottom: 1rem;
}

.section__intro {
  max-width: 720px;
  margin-bottom: 3rem;
}

/* --- Hero --- */
.hero {
  padding-top: calc(72px + var(--section-padding));
  padding-bottom: var(--section-padding);
  min-height: 100vh;
  display: flex;
  align-items: center;
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.hero__content {
}

.hero__greeting {
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: 1rem;
}

.hero .hero__title {
  margin-bottom: 1.25rem;
}

.hero .hero__subtitle {
  font-size: 1.25rem;
  margin-bottom: 2rem;
  max-width: 85%;
}

.hero__buttons,
.hero__actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.hero__photo {
  width: 100%;
  aspect-ratio: 1 / 1;
  background: var(--color-bg-alt);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

/* --- Cards Grid --- */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: 3rem;
}

.card {
  padding: 0;
  border-top: 1px solid var(--color-border);
  padding-top: 1.5rem;
}

.card__title {
  font-size: 1.0625rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
  line-height: 1.3;
  color: var(--color-dark);
}

.card__body {
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--color-text);
}

/* --- Value Props Section --- */
.value-props-section {
  padding-top: clamp(2rem, 3vw, 3rem);
}

.value-props {
  display: flex;
  flex-direction: column;
}

.value-prop {
  display: grid;
  grid-template-columns: 10rem 28rem 1fr;
  gap: 4rem;
  padding: 2rem 0;
  border-top: 1px solid var(--color-border);
  align-items: center;
}

.value-prop__icon {
  width: 10rem;
  height: 10rem;
  background: var(--color-bg-alt);
  border-radius: 4px;
  flex-shrink: 0;
  border: 1px solid var(--color-border);
}

.value-prop__question {
  font-size: 2rem;
  font-weight: 500;
  line-height: 1.25;
}

.value-prop__answer {
  font-size: 1.25rem;
  line-height: 1.65;
  max-width: 40rem;
  padding-left: 3rem;
}


/* --- Highlight --- */
.highlight--color {
  font-style: normal;
  color: var(--color-accent);
}

/* --- Isolation Section --- */
.isolation {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
}

.isolation__left {
  padding-right: 3.5rem;
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-self: center;
}

.isolation__heading {
  margin-bottom: 1rem;
}

.isolation__text {
  font-size: 1.125rem;
  line-height: 1.6;
}

.isolation__right {
  padding-left: 4rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.isolation__item {
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--color-border);
  cursor: pointer;
}

.isolation__item:first-child {
  border-top: 1px solid var(--color-border);
}

.isolation__row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}

.isolation__name {
  font-size: clamp(1.375rem, 3vw, 2.25rem);
  font-weight: 500;
  color: #CFCFD8;
  letter-spacing: -0.015em;
  transition: color 0.25s ease;
  line-height: 1;
}

.isolation__item:hover .isolation__name,
.isolation__item.highlight .isolation__name {
  color: var(--color-accent);
}

.isolation__item.active .isolation__name {
  color: var(--color-dark);
}

.isolation__toggle {
  font-size: 2.5rem;
  color: #CFCFD8;
  transition: all 0.25s ease;
  line-height: 1;
  user-select: none;
}

.isolation__item:hover .isolation__toggle,
.isolation__item.highlight .isolation__toggle {
  color: var(--color-accent);
}

.isolation__item.active .isolation__toggle {
  color: var(--color-dark);
  transform: rotate(45deg);
}

.isolation__desc {
  font-size: 1rem;
  color: var(--color-text);
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.25s ease, margin-top 0.25s ease;
  line-height: 1.6;
}

.isolation__item.active .isolation__desc {
  max-height: 4rem;
  margin-top: 0.5rem;
}

@media (max-width: 1024px) {
  .isolation {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .isolation__left {
    width: 100%;
    padding-right: 0;
    border-right: none;
  }

  .isolation__right {
    padding-left: 0;
  }
}

/* --- Impact Section --- */
.impact {
  padding: 0;
}

.impact__header {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-bottom: 5rem;
}

.impact__header-left {
}

.impact__header-left .section__label {
  margin-bottom: 0.75rem;
}

.impact__header-left .heading-lg {
  margin-bottom: 0;
}

.impact__intro {
  font-size: 1.125rem;
  max-width: 40rem;
  align-self: end;
  margin-top: 3rem;
}

.impact__steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}

.impact__step {
  padding: 0 1.5rem;
  display: flex;
  flex-direction: column;
  border-top: 1px dashed var(--color-border);
  position: relative;
}


.impact__badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.375rem 0.875rem;
  background: var(--color-white);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-size: 0.8125rem;
  font-weight: 600;
  width: fit-content;
  margin-top: -0.875rem;
  margin-bottom: 1.5rem;
}

.impact__step-title {
  font-size: 1.125rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
  line-height: 1.3;
}

.impact__step-text {
  font-size: 0.9375rem;
  line-height: 1.6;
  margin-bottom: 1.25rem;
}

.impact__step-image {
  width: 100%;
  aspect-ratio: 4 / 3;
  background: var(--color-bg-alt);
  border-radius: var(--radius-md);
  margin-top: auto;
  border: 1px solid var(--color-border);
}

@media (max-width: 1024px) {
  .impact__steps {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .impact__step {
    padding: 0;
  }

  .impact__step:first-child,
  .impact__step:last-child {
    padding: 0;
  }

  .impact__steps {
    grid-template-columns: 1fr;
  }
}

.highlight--subtle {
  font-style: normal;
  color: #555;
}

/* --- Approach Section --- */
.approach {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: start;
  margin-top: 3rem;
}

.approach__text .body-md {
  margin-bottom: 1.5rem;
}

.approach__list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.approach__item {
  display: flex;
  gap: 8px;
  font-size: 0.9375rem;
  color: var(--color-text);
  line-height: 1.5;
  padding: 14px 0;
  border-bottom: 1px solid var(--color-border);
}

.approach__item:first-child {
  border-top: 1px solid var(--color-border);
}

.approach__item strong {
  color: var(--color-dark);
  font-weight: 600;
  white-space: nowrap;
}

.approach__visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

.approach__placeholder {
  width: 100%;
  aspect-ratio: 4 / 3;
  background: var(--color-bg-alt);
  border-radius: var(--radius-lg);
}

/* --- Steps Grid --- */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  margin-top: 48px;
}

.step {
  position: relative;
  padding: 0;
}

.step__number {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 1.25rem;
  font-variant-numeric: tabular-nums;
  padding-bottom: 0.875rem;
  border-bottom: 2px solid var(--color-dark);
  width: 28px;
}

.step__title {
  font-size: 1rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
  line-height: 1.3;
  color: var(--color-dark);
}

.step__body,
.step__text {
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--color-text);
}

/* --- Case Studies Grid --- */
.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 2rem;
}

.case-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
  color: inherit;
}

.case-card:hover {
  border-color: var(--color-accent);
}

.case-card__image {
  width: 100%;
  aspect-ratio: 16 / 6;
  background: var(--color-bg-alt);
  border-bottom: 1px solid var(--color-border);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.case-card__image-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  padding: 6px 14px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  background: var(--color-bg);
}

.case-card__image-label svg {
  flex-shrink: 0;
}

/* --- Calendly custom modal --- */
.calendly-modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 32px 16px;
}

.calendly-modal.is-open {
  display: flex;
}

.calendly-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(8, 8, 8, 0.6);
  backdrop-filter: blur(2px);
}

.calendly-modal__dialog {
  position: relative;
  width: 100%;
  max-width: 1040px;
  max-height: 90vh;
  border-radius: 12px;
  overflow: hidden;
}

.calendly-modal__close {
  position: absolute;
  top: 12px;
  right: 12px;
  z-index: 2;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: none;
  background: var(--color-bg);
  color: var(--color-text);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  transition: background 0.2s, color 0.2s;
}

.calendly-modal__close:hover {
  background: var(--color-dark);
  color: var(--color-white);
}

.calendly-modal__content {
  width: 100%;
  height: 720px;
  max-height: 90vh;
}

.calendly-modal__content .calendly-inline-widget {
  width: 100%;
  height: 100%;
  min-width: 320px;
}

body.calendly-modal-open {
  overflow: hidden;
}

/* --- Work banner (MVP: case studies under development) --- */
.cases-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.cases-header .heading-lg {
  margin: 0;
}

.work-banner {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 22px;
  margin: 0 0 32px 0;
  border: 1px solid #f5d87a;
  border-radius: var(--radius-md);
  background: #fff7d6;
  font-size: 0.9375rem;
  line-height: 1.5;
  color: var(--color-text);
}

.cases-header .work-banner {
  margin: 0;
  max-width: 520px;
}

.work-banner__icon {
  flex-shrink: 0;
  color: var(--color-text);
}

.work-banner__text {
  flex: 1;
  margin: 0;
}

.work-banner__text strong {
  font-weight: 600;
}

/* --- Case study gate (MVP: content under development) --- */
.case-gate {
  position: relative;
}

.case-gate__content {
  position: relative;
  max-height: 640px;
  overflow: hidden;
}

.case-gate__content::before {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(5px);
  -webkit-mask-image: linear-gradient(to bottom, transparent 0%, transparent 25%, black 100%);
  mask-image: linear-gradient(to bottom, transparent 0%, transparent 25%, black 100%);
  z-index: 3;
}

.case-gate__content::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(to bottom, transparent 0%, transparent 15%, var(--color-bg) 90%);
  z-index: 4;
}

.case-gate__lock {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  margin: -400px auto 280px;
  padding: 0 24px;
  position: relative;
  z-index: 5;
  text-align: center;
}

.case-gate__lock-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--color-dark);
  color: var(--color-white);
}

.case-gate__lock-text {
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--color-text);
  margin: 0;
}

.case-gate__lock-sub {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  margin: 0;
  max-width: 420px;
}

.case-card__content {
  padding: 24px 28px 28px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.case-card__tag {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text);
  margin-bottom: 0.5rem;
}

.case-card__title {
  font-size: 1.5rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
  line-height: 1.25;
  color: var(--color-dark);
}

.case-card__desc {
  font-size: 0.9375rem;
  line-height: 1.55;
  color: var(--color-text);
  flex: 1;
}

.case-card__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 1rem;
}

.case-card__link {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-dark);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.case-card:hover .case-card__link {
  color: var(--color-accent);
  text-decoration-color: transparent;
}

.case-card__arrow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-dark);
  color: var(--color-white);
  flex-shrink: 0;
  transition: transform var(--transition);
}

.case-card__arrow svg {
  width: 14px;
  height: 14px;
}

.case-card:hover .case-card__arrow {
  transform: translate(2px, -2px);
}

/* --- CTA Banner --- */
.cta-banner {
  background: var(--color-bg-alt);
  border-radius: var(--radius-xl);
  padding: 3.5rem 4rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 3rem;
}

.cta-banner__left {
  max-width: 42rem;
}

.cta-banner__heading {
  font-size: 1.75rem;
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: 0.75rem;
  color: var(--color-dark);
}

.cta-banner__sub {
  font-size: 1.125rem;
  line-height: 1.5;
  color: var(--color-text);
}

.cta-banner__actions {
  display: flex;
  gap: 0.75rem;
  flex-shrink: 0;
}

/* --- Tools Section --- */
.tools-layout {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 4rem;
  align-items: center;
}


.tools-center {
  text-align: center;
}

.tools-section {
  padding-bottom: clamp(10rem, 12vw, 14rem);
}

.tools-section .heading-lg {
  margin-bottom: 1rem;
}

.tools-intro {
  font-size: 1.125rem;
  text-align: center;
  max-width: 40rem;
  margin: 0 auto 3rem;
}

.tools-logos {
  margin-top: 3rem;
  margin-bottom: 5rem;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.tools-logos__row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2.5rem;
  flex-wrap: wrap;
}

.tool-logo {
  object-fit: contain;
  transition: opacity 0.25s ease;
}

.tool-logo:hover {
  opacity: 0.7;
}

.tool-logo--lg {
  height: 2rem;
}

.tool-logo--sm {
  height: 2rem;
}

/* Individual logo size adjustments – row 1-2 */
.tool-logo[alt="Dovetail"] { height: 2.5rem; }
.tool-logo[alt="Notion"] { height: 2.25rem; }
.tool-logo[alt="Hotjar"] { height: 1.6rem; }
.tool-logo[alt="Zoom"] { height: 2rem; }
.tool-logo[alt="Slack"] { height: 2.25rem; }
.tool-logo[alt="Mixpanel"] { height: 2rem; }
.tool-logo[alt="UserTesting"] { height: 2.25rem; }
.tool-logo[alt="Webflow"] { height: 1.75rem; }
.tool-logo[alt="Miro"] { height: 2.25rem; }
.tool-logo[alt="Claude"] { height: 1.6rem; }
.tool-logo[alt="Storybook"] { height: 2rem; }
/* Row 3 (icons) */
.tool-logo[alt="Google Analytics"] { height: 2.5rem; }
.tool-logo[alt="Teams"] { height: 2.5rem; }
.tool-logo[alt="Confluence"] { height: 2.7rem; }
.tool-logo[alt="Adobe"] { height: 2rem; }
.tool-logo[alt="Jira"] { height: 2.7rem; }
.tool-logo[alt="Figma"] { height: 2.5rem; }
.tool-logo[alt="Similarweb"] { height: 1.5rem; }
.tool-logo[alt="Shopify"] { height: 3rem; }

@media (max-width: 768px) {
  .tools-layout {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .tools-text {
    order: -1;
  }

  .tools-logos__row {
    gap: 1.5rem;
  }

  .tool-logo--lg {
    height: 1.75rem;
  }

  .tool-logo--sm {
    height: 1.5rem;
  }
}

/* --- Experience Page --- */
.experience-list {
  display: flex;
  flex-direction: column;
}

.experience-item {
  --item-bg: var(--color-bg);
  position: relative;
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 48px;
  padding: 72px 0 72px 56px;
  background-color: var(--item-bg);
  background-image: linear-gradient(to right, transparent 20px, var(--color-border) 20px);
  background-repeat: no-repeat;
  background-position: 0 100%;
  background-size: 100% 1px;
}

.experience-item:first-child {
  background-image:
    linear-gradient(to right, transparent 20px, var(--color-border) 20px),
    linear-gradient(to right, transparent 20px, var(--color-border) 20px);
  background-position: 0 100%, 0 0;
  background-size: 100% 1px, 100% 1px;
}


.experience-item::before {
  content: '';
  position: absolute;
  left: 19px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--color-dark);
  z-index: 1;
}

.experience-item::after {
  content: '';
  position: absolute;
  left: 13px;
  top: 78px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--color-dark);
  box-shadow: 0 0 0 3px var(--item-bg);
  box-sizing: border-box;
  z-index: 2;
}

.experience-item__left {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.experience-item__period {
  font-size: 1rem;
  color: var(--color-text);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.divider-pipe {
  display: inline-block;
  width: 2px;
  height: 0.85em;
  background: currentColor;
  vertical-align: -0.08em;
  margin: 0 0.55em;
  border-radius: 1px;
}

.experience-item__right {
  position: relative;
}

.experience-item__role {
  font-size: 1.375rem;
  font-weight: 500;
  line-height: 1.25;
  margin-bottom: 4px;
  color: var(--color-text);
}

.experience-item__company {
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--color-text);
  line-height: 1.4;
  margin-bottom: 16px;
  max-width: 640px;
}

.experience-item__company-meta,
.experience-engagement__client-meta {
  font-size: 1.25rem;
  color: var(--color-text);
  font-weight: 500;
}

.experience-item__company-meta::before,
.experience-engagement__client-meta::before {
  content: '·';
  font-weight: 900;
  font-size: 1.15em;
  margin: 0 0.3em 0 0.15em;
  display: inline-block;
  vertical-align: -0.05em;
}

.experience-item__summary {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  max-width: 640px;
  margin-bottom: 16px;
}

/* --- Engagement sub-items (for grouped employers like Luxoft) --- */
.experience-engagements {
  margin-top: 24px;
  display: flex;
  flex-direction: column;
  border-top: 1px dashed var(--color-border);
}

.experience-engagement {
  position: relative;
  display: block;
  padding: 36px 0;
  border-bottom: 1px dashed var(--color-border);
}

.experience-engagement:last-child {
  border-bottom: none;
  padding-bottom: 4px;
}

.experience-engagement::before {
  content: '';
  position: absolute;
  left: -311px;
  top: 44px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--item-bg);
  border: 2px solid var(--color-text-secondary);
  box-sizing: border-box;
  z-index: 2;
}

.experience-engagement__left {
  position: absolute;
  left: -268px;
  top: 38px;
  width: 220px;
}

.experience-engagement__client {
  font-size: 1.25rem;
  font-weight: 500;
  line-height: 1.3;
  color: var(--color-text);
  margin: 0 0 12px 0;
}


.experience-engagement__period {
  font-size: 1rem;
  color: var(--color-text-secondary);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.experience-engagement__summary {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  margin-bottom: 12px;
  max-width: 640px;
}

.experience-item__responsibilities {
  list-style: none;
  padding: 0;
  margin: 16px 0 0 0;
  max-width: 640px;
}

.experience-item__responsibilities li {
  position: relative;
  padding-left: 18px;
  font-size: 1rem;
  line-height: 1.55;
  color: var(--color-text);
  margin-bottom: 2px;
}

.experience-item__responsibilities li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 6px;
  height: 1px;
  background: var(--color-text-muted);
}

.experience-item__link {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-dark);
  margin-top: 1rem;
  transition: all var(--transition);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.experience-item__link:hover {
  gap: 10px;
  color: var(--color-accent);
  text-decoration-color: transparent;
}

/* --- About Page --- */
.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.section--about-content {
  padding-top: 40px;
}

.about-photo {
  width: 100%;
  aspect-ratio: 3 / 4;
  background: var(--color-bg-alt);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

/* --- About carousel --- */
.about-carousel {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.about-carousel__viewport {
  position: relative;
  width: 100%;
  overflow: hidden;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background: var(--color-bg-alt);
}

.about-carousel__track {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  transition: transform 0.5s ease;
}

.about-carousel__slide {
  flex: 0 0 100%;
  min-width: 0;
  position: relative;
}

.about-carousel__image {
  width: 100%;
  aspect-ratio: 3 / 2;
  background-color: var(--color-bg-alt);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.about-carousel__caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  margin: 0;
  padding: 56px 24px 20px;
  font-size: 0.9375rem;
  line-height: 1.5;
  color: var(--color-white);
  font-style: italic;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.78) 0%, rgba(0, 0, 0, 0.55) 60%, rgba(0, 0, 0, 0) 100%);
}

.about-carousel__controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.about-carousel__btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-text);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}

.about-carousel__btn:hover {
  border-color: var(--color-dark);
  color: var(--color-accent);
}

.about-carousel__btn:disabled {
  opacity: 0.35;
  cursor: default;
}

.about-carousel__dots {
  display: flex;
  align-items: center;
  gap: 8px;
}

.about-carousel__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: 0;
  background: var(--color-border);
  padding: 0;
  cursor: pointer;
  transition: background 0.2s, transform 0.2s;
}

.about-carousel__dot:hover {
  background: var(--color-text-muted);
}

.about-carousel__dot.is-active {
  background: var(--color-dark);
  transform: scale(1.3);
}

.about-text {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.about-text p {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-text);
}

.about-location {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-dark);
  margin-top: 8px;
  padding-top: 20px;
  border-top: 1px solid var(--color-border);
}

/* --- Case Study Page --- */
.case-hero {
  padding-top: calc(72px + 80px);
  padding-bottom: 56px;
}

.case-hero__meta {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
  margin-top: 28px;
}

.case-hero__meta-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.case-hero__meta-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text);
  font-weight: 600;
}

.case-hero__meta-value {
  font-size: 0.9375rem;
  font-weight: 600;
}

.case-image-full {
  width: 100%;
  aspect-ratio: 21 / 9;
  background: var(--color-bg-alt);
  border-radius: var(--radius-lg);
  margin-bottom: 56px;
}

.case-section {
  max-width: 720px;
  margin: 0 auto;
  padding: 40px 0;
}

.case-section h2 {
  font-size: 1.5rem;
  font-weight: 500;
  margin-bottom: 1rem;
}

.case-section h3 {
  font-size: 1.125rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
  margin-top: 1.75rem;
}

.case-section p {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-text);
  margin-bottom: 1rem;
}

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

.case-section ul {
  padding-left: 1.25rem;
  margin-bottom: 1rem;
}

.case-section ul li {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-text);
  margin-bottom: 0.25rem;
  list-style: disc;
}

.case-section--highlight {
  background: var(--color-bg-alt);
  border-radius: var(--radius-lg);
  padding: 36px;
  max-width: 720px;
  margin: 28px auto;
}

.case-section--highlight p {
  font-size: 1rem;
  font-style: italic;
  color: var(--color-text);
  margin-bottom: 0;
}

.case-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 40px 0;
  border-top: 1px solid var(--color-border);
  margin-top: 40px;
}

.case-nav a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-dark);
  transition: gap var(--transition);
}

.case-nav a:hover {
  gap: 12px;
  color: var(--color-accent);
}

/* --- Contact Section --- */
.contact-section {
  background: var(--color-dark);
  color: var(--color-white);
}

.contact-section .contact__heading {
  color: var(--color-white);
}

.contact-section .btn--primary {
  background: var(--color-accent);
}

.contact-section .contact__note {
  color: rgba(255, 255, 255, 0.7);
}

.contact-section .btn--secondary {
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.25);
}

.contact-section .btn--secondary:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.contact {
  text-align: left;
}

.contact__heading {
  margin-bottom: 1rem;
}

.contact__email-row {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 2rem;
  position: relative;
}

.contact__email {
  font-size: clamp(1.75rem, 3.5vw, 3rem);
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--color-accent);
}

.contact__copy {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 6px;
  color: var(--color-accent);
  background: none;
  border: 1px solid var(--color-border);
  cursor: pointer;
  transition: all 0.25s ease;
  position: relative;
}

.contact__copy:hover {
  border-color: var(--color-accent);
  background: var(--color-white);
}

.contact__tooltip {
  position: absolute;
  bottom: calc(100% + 0.5rem);
  left: 50%;
  transform: translateX(-50%);
  background: #00C32D;
  color: var(--color-white);
  font-size: 0.8125rem;
  font-weight: 500;
  padding: 0.375rem 0.75rem;
  border-radius: 6px;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.contact__tooltip.show {
  opacity: 1;
}

.contact__note {
  font-size: 1.125rem;
  line-height: 1.6;
  max-width: 40rem;
  margin-bottom: 2rem;
}

.contact__actions {
  display: flex;
  gap: 0.75rem;
}

/* --- Footer --- */
.footer {
  padding: 2rem 0;
  border-top: 1px solid var(--color-border);
}

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

.footer__copyright {
  font-size: 0.8125rem;
}

.footer__logo {
  position: absolute;
  left: 0;
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--color-text);
}

.footer__social {
  display: flex;
  gap: 1rem;
  position: absolute;
  right: 0;
}

.footer__social a {
  display: inline-flex;
  color: var(--color-text);
  transition: color 0.25s ease;
}

.footer__social a:hover {
  color: var(--color-accent);
}

.footer__nav {
  display: flex;
  gap: 2rem;
}

.footer__nav a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text);
  transition: color 0.25s ease;
}

.footer__nav a:hover {
  color: var(--color-accent);
}

@media (max-width: 768px) {
  .footer__inner {
    flex-direction: column;
    gap: 1.5rem;
    align-items: flex-start;
  }

  .footer__nav {
    flex-wrap: wrap;
    gap: 1rem;
  }
}

/* --- Page Header (for inner pages) --- */
.page-header {
  padding-top: calc(72px + var(--section-padding-sm));
  padding-bottom: 56px;
}

.page-header__label {
  margin-bottom: 0.75rem;
}

.page-header__heading {
  margin-bottom: 1rem;
}

.page-header__intro {
  max-width: 720px;
}

/* --- Animations handled by GSAP --- */
.contact__heading .word {
  display: inline-block;
}

/* --- Mobile Nav --- */
.mobile-nav {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  z-index: 999;
  padding: 32px clamp(24px, 5vw, 64px);
  flex-direction: column;
  gap: 28px;
}

.mobile-nav.active {
  display: flex;
}

.mobile-nav a {
  font-size: 1.5rem;
  font-weight: 600;
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .cards-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .approach {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
  }

  .value-prop {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .value-prop__icon {
    width: 3.5rem;
    height: 3.5rem;
  }

  .cases-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .tools-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .about-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .experience-item {
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 28px 0 28px 36px;
  }

  .experience-item::before {
    left: 11px;
  }

  .experience-item::after {
    left: 4px;
    top: 34px;
  }

  .experience-item__right {
    padding-left: 0;
  }

  .footer__top {
    flex-direction: column;
    gap: 28px;
  }
}

@media (max-width: 768px) {
  .navbar__links,
  .navbar__right,
  .navbar__actions {
    display: none;
  }

  .navbar__toggle {
    display: flex;
  }

  .hero {
    min-height: auto;
    padding-top: calc(72px + 48px);
    padding-bottom: 48px;
  }

  .hero .container {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero__photo {
    order: -1;
    aspect-ratio: 16 / 10;
  }

  .steps-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .tools-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .cta-banner {
    padding: 36px 20px;
  }

  .case-hero__meta {
    gap: 16px;
  }

  .case-section--highlight {
    padding: 24px;
  }

  .case-nav {
    flex-direction: column;
    gap: 20px;
    align-items: flex-start;
  }

  .footer__bottom {
    flex-direction: column;
    gap: 12px;
    align-items: flex-start;
  }
}

@media (max-width: 480px) {
  .tools-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero__buttons {
    flex-direction: column;
  }

  .hero__buttons .btn {
    text-align: center;
    justify-content: center;
  }
}