/* stackcone — Hostinger parked-domain style */

:root {
  --bg: #fafafa;
  --bg-soft: #f0f0f0;
  --bg-card: #fff;
  --text-dim: #6b6b6b;
  --text-mid: #404040;
  --text-bright: #0a0a0a;
  --text-white: #0a0a0a;
  --accent: #0a0a0a;
  --accent-strong: #000;
  --accent-muted: #a3a3a3;
  --border: #e5e5e5;
  --border-light: #ebebeb;
  --radius: 6px;
  --radius-lg: 8px;
  --font: "DM Sans", system-ui, sans-serif;
  --container-max: 1100px;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.06);
  /* Consistent spacing */
  --section-padding-y: 4rem;
  --section-padding-x: 1.5rem;
  --section-gap: 2rem;
  --container-padding: 1.5rem;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-bright);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a {
  color: var(--text-bright);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--text-dim);
}

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

/* Header */
.header {
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: var(--bg);
  z-index: 10;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 1rem var(--container-padding);
  flex-wrap: wrap;
}

.logo-link {
  display: flex;
  align-items: center;
  min-width: 0;
  flex-shrink: 0;
}

.logo {
  height: 48px;
  width: auto;
  max-width: 220px;
  object-fit: contain;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem 2rem;
  align-items: center;
  justify-content: flex-end;
}

.nav a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-mid);
}

.nav a:hover {
  color: var(--text-bright);
}

/* Overlay — hidden on desktop */
.nav-overlay {
  display: none;
}

/* Hamburger toggle — hidden on desktop; big tap target, becomes X when open */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 48px;
  height: 48px;
  padding: 12px;
  border: none;
  background: transparent;
  cursor: pointer;
  color: var(--text-bright);
  border-radius: var(--radius);
  transition: background 0.2s ease, color 0.2s ease;
  -webkit-tap-highlight-color: transparent;
}

.nav-toggle:hover,
.nav-toggle:focus-visible {
  background: var(--bg-soft);
}

.nav-toggle:focus {
  outline: none;
}

.nav-toggle:focus-visible {
  outline: 2px solid var(--text-dim);
  outline-offset: 2px;
}

.nav-toggle-bar {
  display: block;
  width: 22px;
  height: 2.5px;
  background: currentColor;
  border-radius: 2px;
  transform-origin: center;
}

/* Hero */
.hero {
  padding: 2.25rem var(--container-padding) 2.5rem;
  max-width: var(--container-max);
  margin: 0 auto;
  text-align: center;
}

.hero-trust {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-dim);
  margin: 0 0 0.5rem;
  font-weight: 500;
}

.hero-title {
  font-size: clamp(1.85rem, 4.5vw, 2.75rem);
  font-weight: 700;
  line-height: 1.2;
  margin: 0 0 1rem;
  color: var(--text-white);
}

.hero-title .highlight {
  color: var(--accent);
  font-weight: 700;
}

.hero-title .gradient-text {
  color: var(--text-bright);
  font-weight: 800;
}

.hero-desc {
  font-size: 1.1rem;
  line-height: 1.65;
  color: var(--text-mid);
  margin: 0 auto 1.5rem;
  max-width: 50rem;
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
  justify-content: center;
}

.cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 600;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}

.cta--primary {
  background: var(--text-bright);
  color: #fff;
  border: 2px solid var(--text-bright);
}

.cta--primary:hover {
  background: var(--text-dim);
  border-color: var(--text-dim);
  color: #fff;
}

.cta--secondary {
  background: transparent;
  color: var(--text-bright);
  border: 2px solid var(--border);
}

.cta--secondary:hover {
  border-color: var(--text-dim);
  color: var(--text-dim);
}

.cta .cta-arrow {
  width: 16px;
  height: 16px;
  stroke: currentColor;
}

/* Stats — trust strip, visually separate from services below */
.stats {
  padding: 1rem var(--section-padding-x);
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  border-top: 1px solid var(--border);
}

.stats-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-start;
  gap: 0.5rem 0.75rem;
  font-size: 0.9rem;
  color: var(--text-dim);
  padding: 0 var(--container-padding);
}

.stat-divider {
  color: var(--border);
  font-weight: 300;
}

/* Section titles */
.section-title {
  font-family: var(--font);
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.3;
  color: var(--text-bright);
  margin: 0 0 0.75rem;
  padding: 0;
  text-align: left;
}

.section-intro {
  max-width: var(--container-max);
  margin: 0 auto var(--section-gap);
  padding: 0 var(--container-padding);
  font-size: 16px;
  line-height: 1.5;
  color: var(--text-bright);
  text-align: left;
}

/* Services — clear section below stats */
.services {
  padding: 3rem var(--section-padding-x) var(--section-padding-y);
  background: var(--bg-soft);
}

.services-hero,
.service-grid {
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding: 0 var(--container-padding);
}

.services-hero {
  margin-bottom: var(--section-gap);
  text-align: left;
}

.services-hero-title {
  font-family: var(--font);
  font-size: clamp(1.75rem, 4.5vw, 2.75rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.2;
  color: var(--text-bright);
  margin: 0 0 1rem;
}

.services-hero-desc {
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--text-mid);
  margin: 0;
  max-width: 42rem;
}

.services .section-title {
  margin: 0 0 1rem;
}

.services .section-intro {
  margin: 0 0 var(--section-gap);
  text-align: left;
}

.service-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--section-gap);
}

/* Stack tabs: AI, Data, Cloud, Products (StackOne-style) */
.stack-tabs {
  max-width: var(--container-max);
  margin: 0 auto var(--section-gap);
  padding: 0 var(--container-padding);
}

.stack-tab-radio {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.stack-tabs-menu {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem 1.5rem;
  margin-bottom: 0;
  padding: 1rem 0 0.5rem;
}

.stack-tab-btn {
  font-family: var(--font);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-dim);
  background: none;
  border: none;
  padding: 0.5rem 0.25rem;
  cursor: pointer;
  transition: color 0.2s, font-weight 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.stack-tab-btn:hover {
  color: var(--text-mid);
}

#stack-tab-ai:checked ~ .stack-tabs-menu label[for="stack-tab-ai"],
#stack-tab-data:checked ~ .stack-tabs-menu label[for="stack-tab-data"],
#stack-tab-cloud:checked ~ .stack-tabs-menu label[for="stack-tab-cloud"],
#stack-tab-products:checked ~ .stack-tabs-menu label[for="stack-tab-products"] {
  color: var(--text-bright);
  font-weight: 600;
}

.stack-tabs-content {
  min-height: 12rem;
  margin-top: 0;
}

.stack-tab-pane {
  display: none;
}

#stack-tab-ai:checked ~ .stack-tabs-content #tab-pane-ai,
#stack-tab-data:checked ~ .stack-tabs-content #tab-pane-data,
#stack-tab-cloud:checked ~ .stack-tabs-content #tab-pane-cloud,
#stack-tab-products:checked ~ .stack-tabs-content #tab-pane-products {
  display: block;
}

.stack-tab-pane .service-card {
  max-width: 100%;
  width: 100%;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  padding: 2.5rem 2.5rem;
}

.stack-tab-pane .service-card h3 {
  font-size: 1.5rem;
  margin-bottom: 0.75rem;
}

.stack-tab-pane .service-card .service-tagline {
  font-size: 1.05rem;
  line-height: 1.7;
  margin-bottom: 1.75rem;
}

.stack-tab-pane .service-card .service-features {
  margin-bottom: 1.5rem;
}

.stack-tab-pane .service-card .service-features li {
  font-size: 1rem;
  margin-bottom: 0.5rem;
}

.stack-tab-pane .service-card::before,
.stack-tab-pane .service-card--data::before {
  display: none;
}

/* --- Service cards: title, tagline, bullet list, tech pills, CTA --- */
.service-card {
  position: relative;
  padding: 2rem;
  border-radius: var(--radius-lg);
  background-color: var(--bg-card);
  background-image: radial-gradient(circle, rgba(0, 0, 0, 0.06) 1px, transparent 1px);
  background-size: 14px 14px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.25s ease, border-color 0.25s ease, transform 0.2s ease;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.service-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--text-bright);
  opacity: 0;
  transition: opacity 0.25s ease;
}

.service-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--border-light);
}

.service-card:hover::before {
  opacity: 1;
}

/* Data Engineering card — same dotted background as others */
.service-card--data {
  background-color: var(--bg-card);
  background-image: radial-gradient(circle, rgba(0, 0, 0, 0.06) 1px, transparent 1px);
  background-size: 14px 14px;
}

.service-card--data::before {
  height: 4px;
  background: linear-gradient(90deg, var(--text-bright) 0%, var(--text-dim) 100%);
  opacity: 0.85;
}

.service-card--data:hover::before {
  opacity: 1;
}

.service-card--data .service-tagline {
  font-size: 1rem;
  margin-bottom: 1rem;
}

.service-card--data .service-features li {
  font-size: 0.95rem;
  color: var(--text-mid);
}

.service-card--data .service-features li::before {
  background: var(--text-bright);
  width: 6px;
  height: 6px;
  top: 0.45em;
}

.service-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-bright);
  margin: 0 0 0.5rem;
  letter-spacing: -0.02em;
  line-height: 1.3;
}

.service-tagline {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-mid);
  margin: 0 0 1.5rem;
  line-height: 1.5;
}

.service-features {
  list-style: none;
  padding: 0;
  margin: 0 0 1.5rem;
}

.service-features li {
  position: relative;
  padding-left: 1.35rem;
  margin-bottom: 0.6rem;
  font-size: 0.9rem;
  color: var(--text-mid);
  line-height: 1.5;
}

.service-features li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--text-dim);
}

.service-tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 0.75rem;
  margin-bottom: 1.5rem;
  padding: 0.75rem 0;
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
}

.tech-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.75rem;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-mid);
  background: var(--bg-soft);
  border-radius: 999px;
  border: 1px solid transparent;
  transition: background 0.2s, border-color 0.2s;
}

.tech-tag:hover {
  background: var(--border-light);
}

.tech-tag img {
  flex-shrink: 0;
  opacity: 0.85;
  width: 18px;
  height: 18px;
}

.service-card p:not(.service-tagline) {
  font-size: 1rem;
  color: var(--text-bright);
  margin: 0 0 1rem;
  line-height: 1.5;
  overflow-wrap: break-word;
}

.service-learn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0.6rem 0;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-bright);
  background: transparent;
  text-decoration: none;
  transition: color 0.2s, gap 0.2s;
  width: fit-content;
  margin-top: auto;
  border-bottom: 2px solid transparent;
  transition: color 0.2s, gap 0.2s, border-color 0.2s;
}

.service-learn:hover {
  color: var(--text-dim);
  gap: 10px;
  border-bottom-color: var(--text-dim);
}

.service-learn .learn-arrow {
  width: 14px;
  height: 14px;
  stroke: currentColor;
}

/* About */
.about {
  padding: var(--section-padding-y) var(--section-padding-x);
  border-top: 1px solid var(--border);
  background: var(--bg-soft);
}

.about-inner {
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding: 0 var(--container-padding);
}

.about .section-title {
  margin: 0 0 1.25rem;
  padding: 0;
}

.about-content {
  padding: 0;
}

.about-content--single {
  max-width: 60rem;
}

.about-lead {
  font-size: 1.1rem;
  color: var(--text-bright);
  line-height: 1.7;
  margin: 0 0 1.25rem;
  overflow-wrap: break-word;
}

/* Portfolio */
.portfolio {
  padding: var(--section-padding-y) var(--section-padding-x);
  border-top: 1px solid var(--border);
}

.portfolio .section-title,
.portfolio-grid {
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding: 0 var(--container-padding);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--section-gap);
}

.portfolio-card {
  position: relative;
  padding: 1.75rem;
  border-radius: 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  transition: box-shadow 0.25s ease, transform 0.25s ease;
}

.portfolio-card:hover {
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
  transform: translateY(-2px);
}

.portfolio-card h3 {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-bright);
  margin: 0 0 0.35rem;
  overflow-wrap: break-word;
}

.portfolio-card p {
  font-size: 0.9rem;
  color: var(--text-mid);
  margin: 0;
  line-height: 1.5;
}

/* Experience */
.experience {
  padding: var(--section-padding-y) var(--section-padding-x);
  border-top: 1px solid var(--border);
}

.experience .section-title,
.experience-list {
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding: 0 var(--container-padding);
}

.experience-item {
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--border);
}

.experience-item:last-child {
  border-bottom: none;
}

.experience-role {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-bright);
  margin-bottom: 0.35rem;
}

.experience-item p {
  font-size: 0.95rem;
  color: var(--text-mid);
  margin: 0;
  line-height: 1.55;
}

/* Testimonials */
.testimonials {
  padding: var(--section-padding-y) var(--section-padding-x);
  border-top: 1px solid var(--border);
  background: var(--bg-soft);
}

.testimonials .section-title,
.testimonials .section-intro,
.testimonials-grid,
.testimonials-pagination {
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding: 0 var(--container-padding);
}

.testimonials .section-intro {
  text-align: left;
  margin-bottom: var(--section-gap);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--section-gap);
  align-items: stretch;
}

.testimonial-card {
  position: relative;
  padding: 2.5rem 1.5rem 2rem;
  border-radius: 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  background: #1a1a1a;
  color: #fff;
  transition: box-shadow 0.25s ease, transform 0.25s ease;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 12px), 50% 100%, 0 calc(100% - 12px));
}

.testimonial-card:hover {
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
  transform: translateY(-2px);
}

.testimonial-avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  border: 2px solid rgba(255, 255, 255, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.95);
  margin-bottom: 0.75rem;
  flex-shrink: 0;
}

.testimonial-quote {
  position: absolute;
  top: 2.5rem;
  left: 1rem;
  font-size: 3rem;
  line-height: 1;
  font-family: Georgia, serif;
  color: #22c55e;
  opacity: 0.9;
}

.testimonial-quote--end {
  left: auto;
  right: 1rem;
}

.testimonial-name {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin: 0 0 0.5rem;
  font-style: normal;
  color: #fff;
}

.testimonial-text {
  font-size: 0.9rem;
  line-height: 1.55;
  margin: 0 0 1rem;
  flex: 1;
  color: #fff;
}

.testimonial-stars {
  font-size: 1rem;
  letter-spacing: 0.1em;
  line-height: 1;
  color: #22c55e;
}

/* Pagination */
.testimonials-pagination {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 0.5rem;
  margin-top: var(--section-gap);
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding: 0 var(--container-padding);
}

.testimonials-pagination button {
  min-width: 36px;
  height: 36px;
  padding: 0 0.5rem;
  font-family: var(--font);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-mid);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}

.testimonials-pagination button:hover:not(:disabled) {
  border-color: var(--text-dim);
  color: var(--text-bright);
}

.testimonials-pagination button.active {
  background: #1a1a1a;
  color: #fff;
  border-color: #1a1a1a;
}

.testimonials-pagination button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.testimonials-pagination .pagination-ellipsis {
  padding: 0 0.25rem;
  color: var(--text-dim);
  font-size: 0.9rem;
}


/* Skills */
.skills {
  padding: var(--section-padding-y) var(--section-padding-x);
  border-top: 1px solid var(--border);
}

.skills .section-title,
.skills-tags {
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding: 0 var(--container-padding);
}

.skills-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 0.5rem;
  line-height: 1.4;
}

.skills-tags span {
  display: inline-block;
  padding: 8px 14px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-mid);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}

/* Stack we work on */
.stack-logos {
  padding: var(--section-padding-y) var(--section-padding-x);
  border-top: 1px solid var(--border);
  background: var(--bg-soft);
}

.stack-logos .section-title,
.stack-logos .section-intro,
.stack-categories {
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding: 0 var(--container-padding);
}

.stack-logos .section-intro {
  margin-bottom: var(--section-gap);
}

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

.stack-category {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem 2rem;
  padding: var(--section-gap) 0;
  border-bottom: 1px solid var(--border);
}

.stack-category:first-child {
  padding-top: 0;
}

.stack-category:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

@media (max-width: 768px) {
  .stack-category {
    flex-direction: column;
    align-items: flex-start;
    padding: var(--section-gap) 0;
    gap: 1rem;
  }

  .stack-category:last-child {
    padding-bottom: 0;
  }
}

.stack-category-title {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-dim);
  margin: 0;
  padding: 0;
  min-width: 6rem;
  flex-shrink: 0;
}

.stack-logos-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.5rem;
  align-items: center;
  flex: 1;
}

.stack-logos-grid img {
  height: 32px;
  width: auto;
  max-width: 56px;
  object-fit: contain;
  object-position: center;
  opacity: 0.9;
  transition: opacity 0.2s ease;
}

.stack-logos-grid img:hover {
  opacity: 1;
}

/* AI-assisted development */
.ai-development {
  padding: var(--section-padding-y) var(--section-padding-x);
  border-top: 1px solid var(--border);
  background: var(--bg-soft);
}

.ai-development .section-title,
.ai-development .section-intro,
.ai-development-content {
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding: 0 var(--container-padding);
}

.ai-development .section-intro {
  margin-bottom: var(--section-gap);
}

.ai-development-img {
  width: 100%;
  max-width: 800px;
  height: auto;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  display: block;
  margin-bottom: 1.25rem;
}

.ai-development-desc {
  font-size: 1rem;
  line-height: 1.65;
  color: var(--text-mid);
  margin: 0;
  max-width: 52rem;
}

/* Approach */
.approach {
  padding: var(--section-padding-y) var(--section-padding-x);
  border-top: 1px solid var(--border);
}

.approach .section-title,
.approach-list {
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding: 0 var(--container-padding);
}

.approach-item {
  display: grid;
  grid-template-columns: 3rem 1fr;
  gap: var(--section-gap);
  padding: var(--section-gap) 0;
  border-bottom: 1px solid var(--border);
}

.approach-item:last-child {
  border-bottom: none;
}

.approach-num {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-dim);
}

.approach-item h3 {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-bright);
  margin: 0 0 0.25rem;
}

.approach-item p {
  font-size: 0.95rem;
  color: var(--text-mid);
  margin: 0;
}

/* Contact */
/* Security & Privacy — StackOne-style */
.security-privacy {
  padding: var(--section-padding-y) var(--section-padding-x);
  background: var(--bg-soft);
  border-top: 1px solid var(--border);
}

.security-privacy-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  text-align: left;
}

.security-privacy-label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-dim);
  margin: 0 0 0.5rem;
  font-weight: 500;
}

.security-privacy-title {
  font-size: clamp(1.5rem, 3.5vw, 2.25rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: var(--text-bright);
  margin: 0 0 1rem;
}

.security-privacy-desc {
  font-size: 1rem;
  line-height: 1.65;
  color: var(--text-mid);
  margin: 0 0 2rem;
  max-width: 50rem;
}

.security-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
}

.security-badge-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 1.5rem 1.25rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
  text-align: center;
}

.security-badge-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--border-light);
}

.security-badge-new {
  position: relative;
  width: 120px;
  height: 120px;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.security-badge-frame {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.security-badge-tag {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.security-badge-tag-icon {
  width: 24px;
  height: 24px;
  object-fit: contain;
  flex-shrink: 0;
}

.security-badge-tag-text {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-mid);
}

.security-badge-tag-highlight {
  font-weight: 700;
  color: var(--text-bright);
}

/* Contact */
.contact {
  padding: var(--section-padding-y) var(--section-padding-x);
  border-top: 1px solid var(--border);
  text-align: center;
}

.contact .section-title,
.contact-text,
.contact-link {
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.contact .section-title {
  margin-bottom: 1rem;
}

.contact-text {
  font-size: 1rem;
  color: var(--text-mid);
  margin: 0 auto 1rem;
  display: block;
  text-align: center;
}

.contact-link {
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  background: var(--accent);
  padding: 10px 16px;
  min-height: 40px;
  border-radius: var(--radius);
  display: inline-block;
  text-align: center;
  transition: opacity 0.2s ease;
}

.contact-link:hover {
  opacity: 0.9;
}

/* Footer */
.footer {
  border-top: 1px solid var(--border);
  padding: 1rem 0;
  width: 100%;
}

.footer-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  box-sizing: border-box;
}

.footer-logo {
  height: 32px;
  width: auto;
  opacity: 0.85;
  display: block;
}

.footer-copy {
  font-size: 0.8rem;
  color: var(--text-dim);
  margin: 0;
  line-height: 1.4;
}

/* Responsive: dropdown menu below header (standard mobile pattern) */
@media (max-width: 992px) {
  .nav-toggle {
    display: flex;
    order: 2;
    margin-left: auto;
  }

  /* When menu is open, keep header (and the X) on top of the drawer so it’s always visible */
  .header.is-menu-open {
    z-index: 21;
  }

  .header-inner {
    flex-direction: row;
    align-items: center;
    flex-wrap: wrap;
    padding: 1rem 1rem;
  }

  /* Overlay: dimmed backdrop when menu is open (tap outside to close) */
  .nav-overlay {
    display: block;
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    min-width: 100vw;
    min-height: 100vh;
    background: rgba(0, 0, 0, 0.35);
    z-index: 18;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
  }

  .header.is-menu-open .nav-overlay {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }

  /* Right-side drawer: full height, slides in from right */
  .nav {
    position: fixed;
    top: 0;
    right: 0;
    width: 70%;
    max-width: 260px;
    height: 100vh;
    margin: 0;
    padding: 0 1rem;
    padding-top: 4rem;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 0;
    background: var(--bg);
    border: none;
    border-left: 1px solid var(--border);
    box-shadow: -8px 0 24px rgba(0, 0, 0, 0.08);
    z-index: 20;
    overflow-y: auto;
    transform: translateX(100%);
  }

  .header.is-menu-open .nav {
    transform: translateX(0);
  }

  .nav a {
    font-size: 1rem;
    padding: 0.85rem 0;
    border-bottom: 1px solid var(--border);
    text-align: right;
  }

  .nav a:last-child {
    border-bottom: none;
  }

  /* X stays in header (no position: fixed = no layout shift) */
  .header.is-menu-open .nav-toggle {
    position: relative;
    z-index: 22;
    color: var(--text-bright);
  }

  .header.is-menu-open .nav-toggle:hover,
  .header.is-menu-open .nav-toggle:focus-visible {
    background: var(--bg-soft);
  }

  /* Hamburger bars become X when menu is open */
  .header.is-menu-open .nav-toggle-bar:nth-child(1) {
    transform: translateY(7.5px) rotate(45deg);
  }

  .header.is-menu-open .nav-toggle-bar:nth-child(2) {
    opacity: 0;
  }

  .header.is-menu-open .nav-toggle-bar:nth-child(3) {
    transform: translateY(-7.5px) rotate(-45deg);
  }
}

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

@media (max-width: 768px) {
  .header-inner {
    padding: 1rem 1rem;
  }

  .hero {
    padding: 3rem 1rem 4rem;
  }

  .hero-desc {
    font-size: 1rem;
  }

  .section-intro {
    padding: 0 1rem var(--section-gap);
  }

  .services,
  .about,
  .portfolio,
  .experience,
  .testimonials,
  .skills,
  .stack-logos,
  .ai-development,
  .approach,
  .security-privacy,
  .contact {
    padding: 2.5rem 1rem;
  }

  .services .section-title,
  .services-hero,
  .service-grid,
  .about-inner,
  .portfolio .section-title,
  .portfolio-grid,
  .experience .section-title,
  .experience-list,
  .testimonials .section-title,
  .testimonials .section-intro,
  .testimonials-grid,
  .testimonials-pagination,
  .skills .section-title,
  .skills-tags,
  .stack-logos .section-title,
  .stack-logos .section-intro,
  .stack-categories,
  .ai-development .section-title,
  .ai-development .section-intro,
  .ai-development-content,
  .approach .section-title,
  .approach-list,
  .security-privacy-inner,
  .contact .section-title,
  .contact-text {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .service-card {
    padding: 1.25rem 1.25rem;
  }

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

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

  .approach-item {
    grid-template-columns: 2.5rem 1fr;
    gap: 1rem;
  }

  .footer-inner {
    padding: 0 1rem;
    flex-direction: column;
    align-items: flex-start;
    text-align: left;
  }
}

/* Responsive: mobile */
@media (max-width: 640px) {
  .header-inner {
    padding: 0.75rem 1rem;
  }

  .logo {
    height: 40px;
    max-width: 180px;
  }

  .nav {
    gap: 0.6rem 1rem;
  }

  .nav a {
    font-size: 1rem;
    padding: 0.85rem 0;
  }

  .hero {
    padding: 2.5rem 1rem 3.5rem;
  }

  .hero-trust {
    font-size: 0.75rem;
    letter-spacing: 0.08em;
  }

  .hero-title {
    font-size: clamp(1.5rem, 5vw, 1.85rem);
  }

  .stats {
    padding: 0.75rem 1rem;
  }

  .stats-inner {
    font-size: 0.75rem;
    padding: 0 1rem;
    gap: 0.4rem 0.5rem;
  }

  .section-title {
    font-size: 1.35rem;
    letter-spacing: -0.02em;
  }

  .service-card h3 {
    font-size: 1rem;
  }

  .service-card p,
  .about-lead {
    font-size: 0.9rem;
  }

  .portfolio-card h3 {
    font-size: 0.95rem;
  }

  .skills-tags span {
    font-size: 0.75rem;
    padding: 0.3rem 0.6rem;
  }

  .approach-num {
    font-size: 0.75rem;
  }

  .approach-item h3 {
    font-size: 0.95rem;
  }

  .approach-item p {
    font-size: 0.9rem;
  }

  .contact-text {
    font-size: 0.95rem;
  }

  .contact-link {
    font-size: 1rem;
    word-break: break-all;
  }

  .security-badge-card {
    flex: 1 1 calc(50% - 0.5rem);
    min-width: 0;
    padding: 1rem 0.75rem;
  }

  .security-badge-new {
    width: 72px;
    height: 72px;
    margin-bottom: 0.5rem;
  }

  .security-badge-tag-icon {
    width: 18px;
    height: 18px;
  }

  .security-badge-tag-text {
    font-size: 0.8rem;
  }
}

/* Responsive: small mobile */
@media (max-width: 380px) {
  .header-inner {
    padding: 0.5rem 0.75rem;
  }

  .nav {
    gap: 0.5rem 0.75rem;
  }

  .hero {
    padding: 2rem 0.75rem 3rem;
  }

  .stats-inner {
    padding: 0 0.75rem;
  }

  .services .section-title,
  .services-hero,
  .service-grid,
  .about-inner,
  .portfolio .section-title,
  .portfolio-grid,
  .experience .section-title,
  .experience-list,
  .testimonials .section-title,
  .testimonials .section-intro,
  .testimonials-grid,
  .testimonials-pagination,
  .skills .section-title,
  .skills-tags,
  .stack-logos .section-title,
  .stack-logos .section-intro,
  .stack-categories,
  .ai-development .section-title,
  .ai-development .section-intro,
  .ai-development-content,
  .approach .section-title,
  .approach-list,
  .security-privacy-inner,
  .contact .section-title,
  .contact-text {
    padding-left: 0.75rem;
    padding-right: 0.75rem;
  }

  .service-card {
    padding: 1rem 1rem;
  }
}

/* Responsive: large screens (big monitors) */
@media (min-width: 1200px) {
  .header-inner {
    padding: 1.25rem 2rem;
  }

  .logo {
    height: 52px;
    max-width: 240px;
  }

  .nav {
    gap: 1.5rem 2.25rem;
  }

  .nav a {
    font-size: 0.95rem;
  }

  .hero {
    padding: 6rem 2rem 8rem;
  }

  .hero-trust {
    font-size: 0.85rem;
    letter-spacing: 0.14em;
  }

  .hero-title {
    font-size: clamp(2rem, 3.5vw, 3rem);
    margin-bottom: 1.75rem;
  }

  .hero-desc {
    font-size: 1.15rem;
    margin-bottom: 2.25rem;
  }

  .cta {
    padding: 0.85rem 1.75rem;
    font-size: 0.95rem;
  }

  .stats {
    padding: 1.25rem 2rem;
  }

  .stats-inner {
    font-size: 0.9rem;
    padding: 0 2rem;
    gap: 0.5rem 1rem;
  }

  .section-title {
    font-size: 1.5rem;
    letter-spacing: -0.02em;
    margin-bottom: 0.85rem;
  }

  .section-intro {
    padding: 0 2rem var(--section-gap);
    font-size: 1.05rem;
  }

  .services,
  .about,
  .portfolio,
  .experience,
  .testimonials,
  .skills,
  .stack-logos,
  .ai-development,
  .approach,
  .security-privacy,
  .contact {
    padding: var(--section-padding-y) 2rem;
  }

  .services .section-title,
  .services-hero,
  .service-grid,
  .about-inner,
  .portfolio .section-title,
  .portfolio-grid,
  .experience .section-title,
  .experience-list,
  .testimonials .section-title,
  .testimonials .section-intro,
  .testimonials-grid,
  .testimonials-pagination,
  .skills .section-title,
  .skills-tags,
  .stack-logos .section-title,
  .stack-logos .section-intro,
  .stack-categories,
  .ai-development .section-title,
  .ai-development .section-intro,
  .ai-development-content,
  .approach .section-title,
  .approach-list,
  .security-privacy-inner,
  .contact .section-title,
  .contact-text {
    padding-left: 2rem;
    padding-right: 2rem;
  }

  .service-grid {
    gap: 1.75rem;
  }

  .service-card {
    padding: 2rem 2.25rem;
  }

  .service-card h3 {
    font-size: 1.15rem;
  }

  .service-card p {
    font-size: 1rem;
  }

  .about-lead {
    font-size: 1.15rem;
  }

  .portfolio-grid {
    gap: 1.5rem;
  }

  .portfolio-card {
    padding: 1.5rem 1.75rem;
  }

  .portfolio-card h3 {
    font-size: 1.05rem;
  }

  .portfolio-card p {
    font-size: 0.95rem;
  }

  .testimonials-grid {
    gap: 1.5rem;
  }

  .skills-tags {
    gap: 0.6rem;
  }

  .skills-tags span {
    font-size: 0.85rem;
    padding: 0.4rem 0.85rem;
  }

  .approach-item {
    padding: 1.75rem 0;
    gap: 2rem;
  }

  .approach-item h3 {
    font-size: 1.05rem;
  }

  .approach-item p {
    font-size: 1rem;
  }

  .contact-text {
    font-size: 1.05rem;
    margin-bottom: 1.25rem;
  }

  .contact-link {
    font-size: 1.15rem;
  }

  .footer-inner {
    padding: 0 2rem;
  }

  .footer-logo {
    height: 36px;
  }

  .footer-copy {
    font-size: 0.85rem;
  }
}

/* Responsive: extra-large (ultrawide / 4K) */
@media (min-width: 1600px) {
  .header-inner {
    padding: 1.5rem 2.5rem;
  }

  .hero {
    padding: 7rem 2.5rem 9rem;
  }

  .hero-title {
    font-size: 3rem;
  }

  .section-intro {
    padding: 0 2.5rem var(--section-gap);
  }

  .services,
  .about,
  .portfolio,
  .experience,
  .testimonials,
  .skills,
  .stack-logos,
  .ai-development,
  .approach,
  .security-privacy,
  .contact {
    padding: var(--section-padding-y) 2.5rem;
  }

  .services .section-title,
  .services-hero,
  .service-grid,
  .about-inner,
  .portfolio .section-title,
  .portfolio-grid,
  .experience .section-title,
  .experience-list,
  .testimonials .section-title,
  .testimonials .section-intro,
  .testimonials-grid,
  .testimonials-pagination,
  .skills .section-title,
  .skills-tags,
  .stack-logos .section-title,
  .stack-logos .section-intro,
  .stack-categories,
  .ai-development .section-title,
  .ai-development .section-intro,
  .ai-development-content,
  .approach .section-title,
  .approach-list,
  .security-privacy-inner,
  .contact .section-title,
  .contact-text {
    padding-left: 2.5rem;
    padding-right: 2.5rem;
  }

  .service-card {
    padding: 2.25rem 2.5rem;
  }
}