/* ============================================
   OgenTech - Minimal & Elegant Design System
   ============================================ */

/* CSS Variables */
:root {
  --color-bg: #FAFAFA;
  --color-bg-alt: #FFFFFF;
  --color-bg-dark: #0F1419;
  --color-bg-dark-alt: #1A2332;
  --color-text: #2D3748;
  --color-text-light: #718096;
  --color-text-dark: #1A202C;
  --color-heading: #1A202C;
  --color-primary: #0D8B8B;
  --color-primary-light: #12A5A5;
  --color-primary-dark: #0A7070;
  --color-accent: #2563EB;
  --color-accent-light: #3B82F6;
  --color-border: #E2E8F0;
  --color-border-light: #F1F5F9;
  --color-gradient-start: #0D8B8B;
  --color-gradient-end: #2563EB;
  --color-white: #FFFFFF;
  --color-card-shadow: rgba(0, 0, 0, 0.04);

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  --space-5xl: 8rem;

  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  --text-6xl: 3.75rem;

  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;

  --max-width: 1200px;
  --max-width-narrow: 800px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-dark);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  color: var(--color-heading);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

h1 { font-size: var(--text-5xl); }
h2 { font-size: var(--text-4xl); }
h3 { font-size: var(--text-2xl); }
h4 { font-size: var(--text-xl); }

p {
  margin-bottom: var(--space-md);
  color: var(--color-text);
}

/* Layout */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

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

.section {
  padding: var(--space-5xl) 0;
}

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

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

.section--dark h2,
.section--dark h3,
.section--dark h4 {
  color: var(--color-white);
}

.section--dark p {
  color: rgba(255, 255, 255, 0.7);
}

/* ============================================
   Navigation
   ============================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(250, 250, 250, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border-light);
  transition: all var(--transition-base);
}

.nav--scrolled {
  background: rgba(255, 255, 255, 0.95);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-heading);
  letter-spacing: -0.03em;
}

.nav__logo svg {
  width: 32px;
  height: 32px;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-2xl);
  list-style: none;
}

.nav__link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-light);
  transition: color var(--transition-fast);
  position: relative;
}

.nav__link:hover,
.nav__link--active {
  color: var(--color-heading);
}

.nav__link--active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-primary);
  border-radius: var(--radius-full);
}

.nav__cta {
  display: inline-flex;
  align-items: center;
  padding: 0.5rem 1.25rem;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-white);
  background: var(--color-heading);
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
}

.nav__cta:hover {
  color: var(--color-white);
  background: var(--color-primary);
  transform: translateY(-1px);
}

/* Mobile menu */
.nav__toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-sm);
}

.nav__toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-heading);
  margin: 5px 0;
  transition: all var(--transition-fast);
  border-radius: 1px;
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 72px;
  position: relative;
  overflow: hidden;
  background: var(--color-bg);
}

.hero__bg {
  position: absolute;
  top: 0;
  right: -10%;
  width: 60%;
  height: 100%;
  opacity: 0.04;
  pointer-events: none;
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 720px;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.375rem 1rem;
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-primary);
  background: rgba(37, 99, 235, 0.08);
  border: 1px solid rgba(37, 99, 235, 0.15);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-xl);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.hero__badge::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--color-primary);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero__title {
  font-size: clamp(2.5rem, 5vw, var(--text-6xl));
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-xl);
  color: var(--color-heading);
}

.hero__title span {
  background: linear-gradient(135deg, var(--color-gradient-start), var(--color-gradient-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-light);
  max-width: 560px;
  line-height: 1.8;
  margin-bottom: var(--space-2xl);
}

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

.hero__stats {
  display: flex;
  gap: var(--space-3xl);
  margin-top: var(--space-4xl);
  padding-top: var(--space-2xl);
  border-top: 1px solid var(--color-border);
}

.hero__stat-value {
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--color-heading);
  letter-spacing: -0.02em;
}

.hero__stat-label {
  font-size: var(--text-sm);
  color: var(--color-text-light);
  margin-top: var(--space-xs);
}

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.75rem 1.75rem;
  font-size: var(--text-sm);
  font-weight: 500;
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-base);
  font-family: var(--font-sans);
  text-decoration: none;
}

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

.btn--primary:hover {
  background: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(37, 99, 235, 0.25);
}

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

.btn--secondary:hover {
  border-color: var(--color-heading);
  color: var(--color-heading);
  transform: translateY(-1px);
}

.btn--large {
  padding: 1rem 2.25rem;
  font-size: var(--text-base);
}

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

.btn--white:hover {
  color: var(--color-heading);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(255, 255, 255, 0.2);
}

.btn__arrow {
  transition: transform var(--transition-fast);
}

.btn:hover .btn__arrow {
  transform: translateX(3px);
}

/* ============================================
   Section Headers
   ============================================ */
.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto var(--space-4xl);
}

.section-header__label {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: var(--space-md);
}

.section-header__title {
  margin-bottom: var(--space-lg);
}

.section-header__desc {
  font-size: var(--text-lg);
  color: var(--color-text-light);
  line-height: 1.8;
}

/* ============================================
   Cards
   ============================================ */
.card {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  transition: all var(--transition-base);
}

.card:hover {
  border-color: var(--color-border);
  box-shadow: 0 8px 30px var(--color-card-shadow);
  transform: translateY(-2px);
}

.card__icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(37, 99, 235, 0.08);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-lg);
  color: var(--color-primary);
}

.card__title {
  font-size: var(--text-xl);
  font-weight: 600;
  margin-bottom: var(--space-md);
}

.card__text {
  font-size: var(--text-base);
  color: var(--color-text-light);
  line-height: 1.7;
}

.card__tag {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-primary);
  background: rgba(37, 99, 235, 0.06);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  margin-top: var(--space-lg);
}

/* Grid */
.grid {
  display: grid;
  gap: var(--space-xl);
}

.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

/* ============================================
   Technology Showcase
   ============================================ */
.tech-visual {
  display: flex;
  align-items: center;
  gap: var(--space-4xl);
}

.tech-visual__content {
  flex: 1;
}

.tech-visual__graphic {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.tech-flow {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  width: 100%;
  max-width: 480px;
}

.tech-flow__node {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-lg) var(--space-xl);
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}

.tech-flow__node:hover {
  border-color: var(--color-primary);
  box-shadow: 0 4px 20px rgba(37, 99, 235, 0.08);
}

.tech-flow__node-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  font-size: var(--text-lg);
  flex-shrink: 0;
}

.tech-flow__node-icon--blue { background: rgba(37, 99, 235, 0.1); color: var(--color-primary); }
.tech-flow__node-icon--green { background: rgba(16, 185, 129, 0.1); color: var(--color-accent); }
.tech-flow__node-icon--purple { background: rgba(124, 58, 237, 0.1); color: #7C3AED; }
.tech-flow__node-icon--amber { background: rgba(245, 158, 11, 0.1); color: #F59E0B; }

.tech-flow__node-text {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-heading);
}

.tech-flow__node-desc {
  font-size: var(--text-xs);
  color: var(--color-text-light);
  margin-top: 2px;
}

.tech-flow__connector {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 20px;
  color: var(--color-border);
}

/* ============================================
   Metrics / Stats
   ============================================ */
.metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
}

.metric {
  text-align: center;
  padding: var(--space-2xl);
}

.metric__value {
  font-size: var(--text-4xl);
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: -0.03em;
}

.metric__label {
  font-size: var(--text-sm);
  color: var(--color-text-light);
  margin-top: var(--space-sm);
}

/* ============================================
   Client Logos
   ============================================ */
.logos {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4xl);
  flex-wrap: wrap;
  opacity: 0.4;
  filter: grayscale(100%);
  transition: all var(--transition-slow);
}

.logos:hover {
  opacity: 0.6;
}

.logos__item {
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--color-text-light);
  letter-spacing: -0.01em;
}

/* ============================================
   Testimonial
   ============================================ */
.testimonial {
  max-width: 680px;
  margin: 0 auto;
  text-align: center;
}

.testimonial__quote {
  font-size: var(--text-2xl);
  font-weight: 400;
  line-height: 1.6;
  color: var(--color-heading);
  font-style: italic;
  margin-bottom: var(--space-xl);
}

.testimonial__author {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-heading);
}

.testimonial__role {
  font-size: var(--text-sm);
  color: var(--color-text-light);
}

/* ============================================
   Case Study
   ============================================ */
.case-study-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-2xl);
  padding: var(--space-3xl);
  transition: all var(--transition-base);
}

.case-study-card:hover {
  box-shadow: 0 12px 40px var(--color-card-shadow);
}

.case-study-card__visual {
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.05), rgba(124, 58, 237, 0.05));
  border-radius: var(--radius-xl);
  padding: var(--space-3xl);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 300px;
}

.case-study-card__label {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: var(--space-md);
}

.case-study-card__title {
  font-size: var(--text-3xl);
  font-weight: 600;
  margin-bottom: var(--space-lg);
}

.case-study-card__text {
  color: var(--color-text-light);
  margin-bottom: var(--space-xl);
  line-height: 1.8;
}

/* ============================================
   Timeline
   ============================================ */
.timeline {
  position: relative;
  padding-left: var(--space-3xl);
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--color-border);
}

.timeline__item {
  position: relative;
  padding-bottom: var(--space-2xl);
}

.timeline__item::before {
  content: '';
  position: absolute;
  left: calc(-1 * var(--space-3xl) - 5px);
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-primary);
  border: 3px solid var(--color-bg);
}

.timeline__label {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: var(--space-sm);
}

.timeline__title {
  font-size: var(--text-lg);
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.timeline__text {
  font-size: var(--text-sm);
  color: var(--color-text-light);
  line-height: 1.7;
}

/* ============================================
   Team
   ============================================ */
.team-member {
  text-align: center;
}

.team-member__avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(124, 58, 237, 0.1));
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-lg);
  font-size: var(--text-3xl);
  color: var(--color-primary);
}

.team-member__name {
  font-size: var(--text-lg);
  font-weight: 600;
}

.team-member__role {
  font-size: var(--text-sm);
  color: var(--color-text-light);
  margin-top: var(--space-xs);
}

/* ============================================
   Contact Form
   ============================================ */
.contact-form {
  max-width: 560px;
  margin: 0 auto;
}

.form-group {
  margin-bottom: var(--space-lg);
}

.form-group label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-heading);
  margin-bottom: var(--space-sm);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: var(--text-base);
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group textarea {
  min-height: 140px;
  resize: vertical;
}

/* ============================================
   Footer
   ============================================ */
.footer {
  background: var(--color-bg-dark);
  color: rgba(255, 255, 255, 0.6);
  padding: var(--space-4xl) 0 var(--space-xl);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-3xl);
  padding-bottom: var(--space-3xl);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer__brand {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: var(--space-md);
  letter-spacing: -0.02em;
}

.footer__desc {
  font-size: var(--text-sm);
  line-height: 1.7;
  max-width: 320px;
}

.footer__heading {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: var(--space-lg);
  letter-spacing: 0.02em;
}

.footer__links {
  list-style: none;
}

.footer__links li {
  margin-bottom: var(--space-sm);
}

.footer__links a {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.5);
  transition: color var(--transition-fast);
}

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

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-xl);
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.35);
}

/* ============================================
   CTA Banner
   ============================================ */
.cta-banner {
  background: linear-gradient(135deg, var(--color-bg-dark), var(--color-bg-dark-alt));
  border-radius: var(--radius-2xl);
  padding: var(--space-4xl);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at 30% 50%, rgba(37, 99, 235, 0.08), transparent 50%);
  pointer-events: none;
}

.cta-banner h2 {
  color: var(--color-white);
  position: relative;
  margin-bottom: var(--space-lg);
}

.cta-banner p {
  color: rgba(255, 255, 255, 0.6);
  max-width: 480px;
  margin: 0 auto var(--space-2xl);
  font-size: var(--text-lg);
}

.cta-banner .btn {
  position: relative;
}

/* ============================================
   Explainability Visual
   ============================================ */
.explain-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.explain-card {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  text-align: center;
  transition: all var(--transition-base);
}

.explain-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-2px);
}

.explain-card__icon {
  font-size: 2rem;
  margin-bottom: var(--space-md);
}

.explain-card__title {
  font-size: var(--text-base);
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.explain-card__text {
  font-size: var(--text-sm);
  color: var(--color-text-light);
}

/* ============================================
   Animations
   ============================================ */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in--visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in--delay-1 { transition-delay: 0.1s; }
.fade-in--delay-2 { transition-delay: 0.2s; }
.fade-in--delay-3 { transition-delay: 0.3s; }
.fade-in--delay-4 { transition-delay: 0.4s; }

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 1024px) {
  .grid--3 { grid-template-columns: repeat(2, 1fr); }
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .metrics { grid-template-columns: repeat(2, 1fr); }
  .tech-visual { flex-direction: column; }
  .case-study-card { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr 1fr; gap: var(--space-2xl); }
}

@media (max-width: 768px) {
  h1 { font-size: var(--text-4xl); }
  h2 { font-size: var(--text-3xl); }

  .section { padding: var(--space-3xl) 0; }
  .container { padding: 0 var(--space-lg); }

  .nav__links { display: none; }
  .nav__toggle { display: block; }

  .nav__links--open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--color-bg-alt);
    padding: var(--space-xl);
    border-bottom: 1px solid var(--color-border);
    gap: var(--space-lg);
  }

  .grid--2,
  .grid--3,
  .grid--4 { grid-template-columns: 1fr; }

  .metrics { grid-template-columns: repeat(2, 1fr); }

  .hero__stats { flex-direction: column; gap: var(--space-xl); }

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

  .footer__grid { grid-template-columns: 1fr; }
  .footer__bottom { flex-direction: column; gap: var(--space-md); text-align: center; }
}