/* ============================================
   FONTS
   ============================================ */

@font-face {
  font-family: 'Clash Display';
  src: url('../assets/fonts/ClashDisplay-Variable.woff2') format('woff2');
  font-weight: 200 700;
  font-display: swap;
  font-style: normal;
}

@font-face {
  font-family: 'JetBrains Mono';
  src: url('../assets/fonts/JetBrainsMono-Regular.woff2') format('woff2');
  font-weight: 400;
  font-display: swap;
  font-style: normal;
}

/* ============================================
   DESIGN TOKENS
   ============================================ */

:root {
  --color-bg: #080808;
  --color-bg-elevated: #111111;
  --color-bg-card: #141414;
  --color-text: #ffffff;
  --color-text-muted: rgba(255, 255, 255, 0.6);
  --color-text-dim: rgba(255, 255, 255, 0.35);
  --color-accent: #00E5A0;
  --color-accent-glow: rgba(0, 229, 160, 0.15);
  --color-gold: #C9A84C;
  --color-border: rgba(255, 255, 255, 0.08);

  --font-display: 'Clash Display', 'Inter', system-ui, sans-serif;
  --font-body: Georgia, 'Times New Roman', serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 8rem;
  --space-section: clamp(5rem, 12vw, 10rem);

  --max-width: 1200px;
  --nav-height: 72px;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
  --duration-fast: 150ms;
  --duration-normal: 300ms;
  --duration-slow: 600ms;
  --duration-reveal: 800ms;
}

/* ============================================
   RESET & BASE
   ============================================ */

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

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

ul, ol { list-style: none; }

/* ============================================
   UTILITIES
   ============================================ */

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 4vw, 2.5rem);
}

.section-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 1rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-md);
}

/* Scroll reveal base state */
.reveal {
  opacity: 0;
  transform: translateY(2.5rem);
  transition: opacity var(--duration-reveal) var(--ease-out),
              transform var(--duration-reveal) var(--ease-out);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger children */
.reveal:nth-child(2) { transition-delay: 0.1s; }
.reveal:nth-child(3) { transition-delay: 0.2s; }
.reveal:nth-child(4) { transition-delay: 0.15s; }
.reveal:nth-child(5) { transition-delay: 0.2s; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 0.9375rem;
  padding: 0.875rem 2rem;
  border-radius: 100px;
  border: none;
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-out);
  white-space: nowrap;
}

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

.btn--primary:hover {
  background: #00ffb3;
  box-shadow: 0 0 30px var(--color-accent-glow);
  transform: translateY(-1px);
}

.btn--ghost {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn--ghost:hover {
  border-color: var(--color-text-muted);
  background: rgba(255, 255, 255, 0.04);
}

/* ============================================
   NAVIGATION
   ============================================ */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-height);
  transition: background var(--duration-normal) var(--ease-smooth),
              backdrop-filter var(--duration-normal) var(--ease-smooth);
}

.nav.scrolled {
  background: rgba(8, 8, 8, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
}

.nav__inner {
  display: flex;
  align-items: center;
  height: 100%;
  gap: var(--space-md);
}

.nav__logo {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9375rem;
  letter-spacing: 0.08em;
  white-space: nowrap;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-left: auto;
}

.nav__link {
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 400;
  color: var(--color-text-muted);
  transition: color var(--duration-fast);
}

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

.nav__cta {
  margin-left: var(--space-sm);
  padding: 0.625rem 1.5rem;
  font-size: 0.8125rem;
}

.nav__burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  margin-left: auto;
}

.nav__burger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  transition: all var(--duration-normal) var(--ease-out);
}

/* ============================================
   HERO
   ============================================ */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding-top: var(--nav-height);
}

.hero__bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.hero__blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.3;
}

.hero__blob--1 {
  width: 600px;
  height: 600px;
  background: var(--color-accent);
  top: -200px;
  right: -100px;
  animation: blob-drift-1 20s ease-in-out infinite;
}

.hero__blob--2 {
  width: 500px;
  height: 500px;
  background: #0066ff;
  bottom: -150px;
  left: -100px;
  animation: blob-drift-2 25s ease-in-out infinite;
}

.hero__blob--3 {
  width: 400px;
  height: 400px;
  background: var(--color-gold);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation: blob-drift-3 22s ease-in-out infinite;
  opacity: 0.15;
}

@keyframes blob-drift-1 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(-80px, 60px) scale(1.1); }
  66% { transform: translate(40px, -40px) scale(0.9); }
}

@keyframes blob-drift-2 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(60px, -50px) scale(0.95); }
  66% { transform: translate(-40px, 30px) scale(1.05); }
}

@keyframes blob-drift-3 {
  0%, 100% { transform: translate(-50%, -50%) scale(1); }
  50% { transform: translate(-40%, -60%) scale(1.15); }
}

.hero__content {
  position: relative;
  text-align: center;
  max-width: 800px;
}

.hero__eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-md);
  opacity: 0;
  animation: fade-up 0.8s var(--ease-out) 0.2s forwards;
}

.hero__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.75rem, 7vw, 5.5rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-md);
}

.hero__title-line {
  display: block;
  opacity: 0;
  animation: fade-up 0.8s var(--ease-out) forwards;
}

.hero__title-line:nth-child(1) { animation-delay: 0.4s; }
.hero__title-line:nth-child(2) { animation-delay: 0.6s; }
.hero__title-line:nth-child(3) { animation-delay: 0.8s; }

.hero__title-line--accent {
  color: var(--color-accent);
}

.hero__subtitle {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto var(--space-lg);
  opacity: 0;
  animation: fade-up 0.8s var(--ease-out) 1s forwards;
}

.hero__ctas {
  display: flex;
  gap: var(--space-sm);
  justify-content: center;
  flex-wrap: wrap;
  opacity: 0;
  animation: fade-up 0.8s var(--ease-out) 1.2s forwards;
}

.hero__scroll {
  position: absolute;
  bottom: var(--space-md);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
  opacity: 0;
  animation: fade-in 1s var(--ease-out) 2s forwards;
}

.hero__scroll span {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-text-dim);
}

.hero__scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--color-text-dim), transparent);
  animation: scroll-pulse 2s ease-in-out infinite;
}

@keyframes fade-up {
  from { opacity: 0; transform: translateY(2rem); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes scroll-pulse {
  0%, 100% { opacity: 0.3; transform: scaleY(1); }
  50% { opacity: 1; transform: scaleY(1.2); }
}


/* ============================================
   PROBLEM (Sticky Scroll)
   ============================================ */

.problem {
  min-height: 300vh;
  position: relative;
  padding-top: var(--space-lg);
}

.problem__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  position: relative;
  min-height: 300vh;
}

.problem__left {
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-right: var(--space-lg);
}

.problem__heading {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.problem__right {
  display: flex;
  flex-direction: column;
  justify-content: space-around;
  padding: 50vh 0;
}

.problem__card {
  padding: var(--space-lg) 0;
  opacity: 0.2;
  transform: translateY(1rem);
  transition: opacity var(--duration-slow) var(--ease-out),
              transform var(--duration-slow) var(--ease-out);
}

.problem__card.active {
  opacity: 1;
  transform: translateY(0);
}

.problem__icon {
  font-size: 2rem;
  display: block;
  margin-bottom: var(--space-sm);
}

.problem__card-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.25rem, 2.5vw, 1.5rem);
  line-height: 1.3;
  margin-bottom: var(--space-sm);
}

.problem__card-body {
  color: var(--color-text-muted);
  line-height: 1.8;
}

/* ============================================
   SOFTWARE PRODUCTION
   ============================================ */

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

.software__block {
  margin-top: var(--space-lg);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: 20px;
  padding: clamp(2rem, 5vw, 3.5rem);
  position: relative;
  overflow: hidden;
}

.software__block::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
}

.software__block--consulting::before {
  background: linear-gradient(90deg, transparent, var(--color-gold), transparent);
}

.software__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-sm);
}

.software__subtitle {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--color-accent);
  margin-bottom: var(--space-md);
}

.software__body {
  color: var(--color-text-muted);
  max-width: 650px;
  margin-bottom: var(--space-sm);
}

.software__list {
  margin-top: var(--space-md);
  margin-bottom: var(--space-lg);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-xs) var(--space-md);
}

.software__list li {
  font-family: var(--font-display);
  font-size: 0.9375rem;
  font-weight: 400;
  color: var(--color-text-muted);
  transition: color var(--duration-fast);
}

.software__list li:hover {
  color: var(--color-text);
}

.software__cta {
  font-size: 0.9375rem;
}

/* ============================================
   EDUCATION ACADEMY
   ============================================ */

.education {
  padding: var(--space-section) 0;
  background: var(--color-bg-elevated);
}

.education__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-sm);
}

.education__subtitle {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  max-width: 600px;
  margin-bottom: var(--space-lg);
}

.education__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.education__card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  transition: transform var(--duration-normal) var(--ease-out),
              border-color var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out);
}

.education__card:hover {
  transform: translateY(-4px);
  border-color: var(--color-accent);
  box-shadow: 0 8px 40px var(--color-accent-glow);
}

.education__tag {
  display: inline-block;
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  background: var(--color-accent-glow);
  padding: 0.25rem 0.75rem;
  border-radius: 100px;
  margin-bottom: var(--space-sm);
}

.education__card-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.25rem;
  line-height: 1.3;
  margin-bottom: var(--space-xs);
}

.education__card-body {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  margin-bottom: var(--space-md);
  flex: 1;
}

.education__link {
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-accent);
  transition: opacity var(--duration-fast);
}

.education__link:hover {
  opacity: 0.8;
}

/* ============================================
   FOUNDER STORY
   ============================================ */

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

.story__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2rem, 5vw, 3.5rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-lg);
  max-width: 700px;
}

.story__body {
  max-width: 650px;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.story__body p {
  color: var(--color-text-muted);
  font-size: 1.125rem;
  line-height: 1.8;
}

.story__body p:nth-child(2) {
  color: var(--color-text);
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.25rem;
  font-style: italic;
}

/* ============================================
   TEAM
   ============================================ */

.team {
  padding: var(--space-section) 0;
  background: var(--color-bg-elevated);
}

.team__subhead {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-lg);
}

.team__founders {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.team__founder {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: var(--space-md);
}

.team__photo {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  object-fit: cover;
  margin-bottom: var(--space-sm);
}

.team__name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.25rem;
  margin-bottom: 0.25rem;
}

.team__role {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--color-accent);
  display: block;
  margin-bottom: var(--space-sm);
}

.team__bio {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  margin-bottom: var(--space-sm);
}

.team__logos {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  align-items: center;
}

.team__logos img {
  height: 16px;
  width: auto;
  opacity: 0.5;
}

.team__logos span {
  font-family: var(--font-display);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-text-dim);
  background: rgba(255, 255, 255, 0.05);
  padding: 0.25rem 0.75rem;
  border-radius: 100px;
}

.team__wall {
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-lg);
}

.team__wall-row {
  margin-bottom: var(--space-md);
}

.team__wall-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-dim);
  margin-bottom: var(--space-sm);
}

.team__wall-logos {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm) var(--space-lg);
  align-items: center;
}

.team__wall-logos img {
  height: 18px;
  width: auto;
  opacity: 0.5;
  transition: opacity var(--duration-fast);
}

.team__wall-logos img:hover {
  opacity: 0.8;
}

.team__wall-logos span {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

/* ============================================
   LOGO IMAGES
   ============================================ */

/* Raw SVGs from jsdelivr are black — invert to white */
.team__logo-img--raw {
  filter: brightness(0) invert(1);
}

/* ============================================
   BLOG PREVIEW
   ============================================ */

.blog {
  padding: var(--space-section) 0;
  background: var(--color-bg-elevated);
}

.blog__subhead {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-lg);
}

.blog__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-md);
}

.blog__card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: var(--space-md);
  transition: border-color var(--duration-normal) var(--ease-out);
}

.blog__card:hover {
  border-color: rgba(255, 255, 255, 0.15);
}

.blog__tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: var(--space-sm);
}

.blog__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.125rem;
  line-height: 1.35;
  margin-bottom: var(--space-xs);
}

.blog__excerpt {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  margin-bottom: var(--space-md);
}

.blog__link {
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-accent);
  transition: opacity var(--duration-fast);
}

.blog__link:hover {
  opacity: 0.8;
}

/* ============================================
   CTA SECTION
   ============================================ */

.cta {
  padding: var(--space-section) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, var(--color-accent-glow) 0%, transparent 70%);
  pointer-events: none;
}

.cta__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2rem, 5vw, 3.5rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-sm);
  position: relative;
}

.cta__subtitle {
  color: var(--color-text-muted);
  font-size: 1.125rem;
  max-width: 500px;
  margin: 0 auto var(--space-lg);
  position: relative;
}

.cta__form {
  display: flex;
  gap: var(--space-xs);
  max-width: 480px;
  margin: 0 auto var(--space-sm);
  position: relative;
}

/* Multi-field contact form: stacked layout */
.cta__form--contact {
  flex-direction: column;
  max-width: 540px;
  text-align: left;
}

.cta__input {
  flex: 1;
  font-family: var(--font-display);
  font-size: 0.9375rem;
  padding: 0.875rem 1.25rem;
  border-radius: 100px;
  border: 1px solid var(--color-border);
  background: var(--color-bg-card);
  color: var(--color-text);
  outline: none;
  transition: border-color var(--duration-fast);
}

/* In the stacked contact form, fields fill the width instead of growing vertically */
.cta__form--contact .cta__input {
  flex: none;
  width: 100%;
}

.cta__textarea {
  border-radius: 20px;
  resize: vertical;
  min-height: 130px;
  line-height: 1.5;
}

.cta__form--contact .cta__btn {
  width: 100%;
  margin-top: var(--space-xs);
}

.cta__input:focus {
  border-color: var(--color-accent);
}

.cta__input::placeholder {
  color: var(--color-text-dim);
}

.cta__btn {
  flex-shrink: 0;
}

.cta__fine-print {
  font-size: 0.8125rem;
  color: var(--color-text-dim);
  position: relative;
}

.cta__status {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  margin-top: var(--space-sm);
  position: relative;
  min-height: 1.5em;
}

.cta__status--success {
  color: var(--color-accent);
}

.cta__status--error {
  color: #ff6b6b;
}

/* ============================================
   MISSION
   ============================================ */

.mission {
  padding: var(--space-section) 0;
  text-align: center;
}

.mission__statement {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2rem, 5vw, 4rem);
  line-height: 1.15;
  max-width: 900px;
  margin: var(--space-md) auto 0;
  color: var(--color-text);
}

.mission__statement em {
  font-style: normal;
  color: var(--color-accent);
}

/* ============================================
   FOOTER
   ============================================ */

.footer {
  padding: var(--space-lg) 0 var(--space-md);
  border-top: 1px solid var(--color-border);
}

.footer__top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.footer__logo {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9375rem;
  letter-spacing: 0.08em;
}

.footer__tagline {
  font-size: 0.875rem;
  color: var(--color-text-dim);
  margin-top: var(--space-xs);
}

.footer__links {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.footer__links a {
  font-family: var(--font-display);
  font-size: 0.875rem;
  color: var(--color-text-muted);
  transition: color var(--duration-fast);
}

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

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-sm);
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-border);
  font-size: 0.8125rem;
  color: var(--color-text-dim);
}

.footer__lang {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.footer__lang-btn {
  background: none;
  border: none;
  font-family: var(--font-display);
  font-size: 0.8125rem;
  color: var(--color-text-dim);
  cursor: pointer;
  transition: color var(--duration-fast);
}

.footer__lang-btn--active {
  color: var(--color-text);
}

.footer__lang-btn:hover {
  color: var(--color-text);
}

.footer__lang-sep {
  color: var(--color-text-dim);
}

/* ============================================
   ANIMATIONS (Reduced motion)
   ============================================ */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }

  html { scroll-behavior: auto; }
}

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

@media (max-width: 768px) {
  .nav__links,
  .nav__cta {
    display: none;
  }

  .nav__burger {
    display: flex;
  }

  /* Mobile menu open state */
  .nav.open {
    height: 100vh;
    background: var(--color-bg);
  }

  .nav.open .nav__inner {
    display: grid;
    grid-template-columns: 1fr auto;
    grid-template-rows: var(--nav-height) 1fr auto;
    height: 100%;
  }

  .nav.open .nav__logo {
    grid-row: 1;
    grid-column: 1;
    align-self: center;
  }

  .nav.open .nav__burger {
    grid-row: 1;
    grid-column: 2;
    align-self: center;
  }

  .nav.open .nav__links {
    display: flex;
    flex-direction: column;
    align-items: center;
    grid-row: 2;
    grid-column: 1 / -1;
    justify-content: center;
    gap: var(--space-md);
    margin-left: 0;
  }

  .nav.open .nav__cta {
    display: flex;
    grid-row: 3;
    grid-column: 1 / -1;
    justify-content: center;
    margin: 0 var(--space-md) var(--space-xl);
  }

  .nav.open .nav__link {
    font-size: 1.5rem;
    color: var(--color-text);
  }

  .nav.open .nav__burger span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }
  .nav.open .nav__burger span:nth-child(2) {
    opacity: 0;
  }
  .nav.open .nav__burger span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }

  /* Problem section: stack vertically on mobile */
  .problem {
    min-height: auto;
  }

  .problem__inner {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .problem__left {
    position: relative;
    height: auto;
    padding-right: 0;
    padding-top: var(--space-section);
    padding-bottom: var(--space-md);
  }

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

  .problem__card {
    opacity: 1;
    transform: none;
  }

  /* Education: single column */
  .education__grid {
    grid-template-columns: 1fr;
  }

  /* Footer: stack */
  .footer__top {
    flex-direction: column;
  }

  /* CTA form: stack */
  .cta__form {
    flex-direction: column;
  }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .education__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}