/* ============================================================
   ByteBrew Inc — Main Stylesheet
   ============================================================ */

:root {
  --bg:        #0a0b0f;
  --bg-card:   #111318;
  --bg-card2:  #16181f;
  --border:    rgba(255,255,255,0.08);
  --border-hover: rgba(255,255,255,0.16);
  --text:      #e8eaf0;
  --text-muted: #8b8fa8;
  --accent:    #f59e0b;
  --accent2:   #fb923c;
  --blue:      #60a5fa;
  --purple:    #a78bfa;
  --green:     #34d399;
  --teal:      #2dd4bf;

  --font:      'Inter', sans-serif;
  --mono:      'JetBrains Mono', monospace;

  --radius:    12px;
  --radius-sm: 8px;
  --shadow:    0 4px 24px rgba(0,0,0,0.4);
  --shadow-lg: 0 8px 48px rgba(0,0,0,0.6);

  --nav-h:     72px;
}

/* ── Reset ─────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.6;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }

/* ── Layout ─────────────────────────────────────────────── */
.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding: 96px 0; }

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(245,158,11,0.1);
  padding: 4px 14px;
  border-radius: 20px;
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 18px;
  color: var(--text-muted);
  max-width: 520px;
  margin: 0 auto;
}

/* ── Gradient text ──────────────────────────────────────── */
.gradient-text {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── Buttons ────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 15px;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.btn--primary {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #0a0b0f;
}
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(245,158,11,0.35); }

.btn--ghost {
  border: 1px solid var(--border);
  color: var(--text);
  background: rgba(255,255,255,0.03);
}
.btn--ghost:hover { border-color: var(--border-hover); background: rgba(255,255,255,0.06); }

.btn--full { width: 100%; justify-content: center; }

/* ── Navigation ─────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  z-index: 100;
  transition: background 0.3s, backdrop-filter 0.3s, border-color 0.3s;
  border-bottom: 1px solid transparent;
}

.nav.scrolled {
  background: rgba(10,11,15,0.85);
  backdrop-filter: blur(16px);
  border-color: var(--border);
}

.nav__container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

.nav__logo {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.03em;
}
.logo-byte { color: var(--text); }
.logo-brew { color: var(--accent); }
.logo-inc  { color: var(--text-muted); font-weight: 400; font-size: 14px; }

.nav__links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav__links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-muted);
  transition: color 0.2s;
}
.nav__links a:hover { color: var(--text); }

.nav__cta {
  background: var(--accent) !important;
  color: #0a0b0f !important;
  padding: 8px 20px;
  border-radius: var(--radius-sm);
  font-weight: 600 !important;
}
.nav__cta:hover { opacity: 0.9; }

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}
.nav__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all 0.3s;
}

/* ── Hero ───────────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: calc(var(--nav-h) + 48px) 24px 80px;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% -10%, rgba(245,158,11,0.12) 0%, transparent 60%),
    radial-gradient(ellipse 50% 40% at 80% 80%, rgba(96,165,250,0.07) 0%, transparent 50%);
  pointer-events: none;
}

.hero__container {
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  z-index: 1;
}

/* Skip link */
.skip-link {
  position: fixed;
  top: -100%;
  left: 16px;
  z-index: 999;
  background: var(--accent);
  color: #0a0b0f;
  font-weight: 700;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  transition: top 0.2s;
}
.skip-link:focus { top: 16px; }

/* Back to top */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  z-index: 90;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--accent);
  color: #0a0b0f;
  font-size: 18px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(245,158,11,0.35);
  opacity: 0;
  transform: translateY(16px);
  pointer-events: none;
  transition: opacity 0.3s, transform 0.3s;
}
.back-to-top.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: all;
}
.back-to-top:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(245,158,11,0.45); }

.hero__badges {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  border: 1px solid var(--border);
  padding: 5px 16px;
  border-radius: 20px;
}

.hero__badge--available {
  color: var(--green);
  border-color: rgba(52,211,153,0.3);
  background: rgba(52,211,153,0.07);
}

.avail-dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(52,211,153,0.5); }
  50%       { box-shadow: 0 0 0 5px rgba(52,211,153,0); }
}

.hero__title {
  font-size: clamp(48px, 8vw, 88px);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.04em;
  margin-bottom: 24px;
}

.hero__subtitle {
  font-size: clamp(16px, 2vw, 20px);
  color: var(--text-muted);
  max-width: 520px;
  margin: 0 auto 40px;
}

.hero__actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 64px;
}

.hero__stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
  flex-wrap: wrap;
}

.stat { text-align: center; }
.stat__value {
  display: block;
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.stat__label {
  display: block;
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 4px;
}
.stat__divider {
  width: 1px;
  height: 40px;
  background: var(--border);
}

.hero__scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--text-muted), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}
@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(1); }
  50% { opacity: 1; transform: scaleY(1.2); }
}

/* ── Marquee ────────────────────────────────────────────── */
.marquee {
  overflow: hidden;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 16px 0;
  background: var(--bg-card);
}

.marquee__track {
  display: flex;
  gap: 32px;
  width: max-content;
  animation: marquee 25s linear infinite;
  font-family: var(--mono);
  font-size: 14px;
  color: var(--text-muted);
}
.marquee__track span { white-space: nowrap; }

@keyframes marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ── About ──────────────────────────────────────────────── */
.about { background: var(--bg); }

.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about__content .section-tag { margin-bottom: 16px; }
.about__content .section-title { margin-bottom: 20px; }

.about__text {
  color: var(--text-muted);
  margin-bottom: 16px;
  font-size: 16px;
}

.about__values {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 32px;
}

.value {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.value__icon {
  font-size: 24px;
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
}
.value strong { display: block; margin-bottom: 4px; font-size: 15px; }
.value p { font-size: 14px; color: var(--text-muted); }

/* Code card */
.code-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  font-family: var(--mono);
}

.code-card__header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 20px;
  background: var(--bg-card2);
  border-bottom: 1px solid var(--border);
}
.dot {
  width: 12px; height: 12px;
  border-radius: 50%;
}
.dot--red    { background: #ff5f57; }
.dot--yellow { background: #febc2e; }
.dot--green  { background: #28c840; }

.code-card__title {
  margin-left: 8px;
  font-size: 13px;
  color: var(--text-muted);
}

.code-card__body {
  padding: 24px;
  font-size: 14px;
  line-height: 2;
  overflow-x: auto;
}
code { white-space: pre; }
.c-white  { color: #e8eaf0; }
.c-purple { color: #c792ea; }
.c-blue   { color: var(--blue); }
.c-teal   { color: var(--teal); }
.c-green  { color: var(--green); }

/* ── Services ───────────────────────────────────────────── */
.services { background: var(--bg-card); }

.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-card {
  position: relative;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
}
.service-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}
.service-card--featured {
  border-color: rgba(245,158,11,0.3);
  background: linear-gradient(135deg, rgba(245,158,11,0.05), rgba(251,146,60,0.03));
}

.service-card__badge {
  position: absolute;
  top: 20px; right: 20px;
  background: var(--accent);
  color: #0a0b0f;
  font-size: 11px;
  font-weight: 700;
  padding: 2px 10px;
  border-radius: 10px;
}

.service-card__icon {
  font-size: 32px;
  margin-bottom: 16px;
}

.service-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 12px;
}

.service-card p {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 20px;
  line-height: 1.7;
}

.service-card__list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.service-card__list li {
  font-size: 13px;
  color: var(--text-muted);
  padding-left: 16px;
  position: relative;
}
.service-card__list li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent);
}

/* ── Process ────────────────────────────────────────────── */
.process { background: var(--bg); }

.process__steps {
  display: flex;
  align-items: flex-start;
  gap: 0;
  justify-content: center;
}

.process__step {
  flex: 1;
  max-width: 220px;
  text-align: center;
}

.step__number {
  font-family: var(--mono);
  font-size: 48px;
  font-weight: 700;
  color: transparent;
  -webkit-text-stroke: 1px rgba(245,158,11,0.4);
  line-height: 1;
  margin-bottom: 16px;
}

.step__content h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
}
.step__content p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
}

.process__connector {
  flex: 0 0 60px;
  height: 1px;
  background: linear-gradient(to right, var(--accent), var(--border));
  margin-top: 28px;
  opacity: 0.5;
}

/* ── Contact ────────────────────────────────────────────── */
.contact { background: var(--bg-card); }

.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.contact__content .section-title { margin-bottom: 16px; }
.contact__content p {
  color: var(--text-muted);
  margin-bottom: 32px;
  font-size: 16px;
  line-height: 1.7;
}

.contact__links {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact__link {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-muted);
  font-size: 15px;
  transition: color 0.2s;
}
.contact__link:hover { color: var(--text); }
.contact__link-icon { font-size: 20px; }

/* Form */
.contact__form {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
}

.form-group {
  margin-bottom: 24px;
}
.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.form-group input,
.form-group textarea {
  width: 100%;
  background: var(--bg-card2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  color: var(--text);
  font-family: var(--font);
  font-size: 15px;
  transition: border-color 0.2s;
  resize: vertical;
}
.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
}
.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
  opacity: 0.6;
}

.form-note {
  text-align: center;
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 16px;
}

/* ── Footer ─────────────────────────────────────────────── */
.footer {
  background: var(--bg);
  border-top: 1px solid var(--border);
  padding: 64px 0 32px;
}

.footer__top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 48px;
  gap: 40px;
  flex-wrap: wrap;
}

.footer__brand p {
  font-size: 14px;
  color: var(--text-muted);
  margin-top: 12px;
}

.footer__links {
  display: flex;
  gap: 64px;
}

.footer__col h4 {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.footer__col ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer__col a {
  font-size: 14px;
  color: var(--text-muted);
  transition: color 0.2s;
}
.footer__col a:hover { color: var(--text); }

.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 32px;
  border-top: 1px solid var(--border);
  font-size: 13px;
  color: var(--text-muted);
  flex-wrap: wrap;
  gap: 8px;
}

/* ── Responsive ─────────────────────────────────────────── */
@media (max-width: 900px) {
  .services__grid { grid-template-columns: 1fr 1fr; }
  .about__grid { grid-template-columns: 1fr; gap: 48px; }
  .contact__grid { grid-template-columns: 1fr; gap: 48px; }
  .process__steps { flex-wrap: wrap; justify-content: center; }
  .process__connector { display: none; }
}

@media (max-width: 640px) {
  .section { padding: 64px 0; }
  .services__grid { grid-template-columns: 1fr; }
  .hero__title { font-size: 44px; }
  .nav__links {
    display: none;
    position: fixed;
    top: var(--nav-h);
    left: 0; right: 0;
    background: rgba(10,11,15,0.98);
    backdrop-filter: blur(16px);
    flex-direction: column;
    padding: 24px;
    gap: 24px;
    border-bottom: 1px solid var(--border);
  }
  .nav__links.open { display: flex; }
  .nav__toggle { display: flex; }
  .hero__stats { gap: 24px; }
  .stat__divider { display: none; }
  .footer__top { flex-direction: column; }
  .footer__links { gap: 32px; }
  .contact__form { padding: 24px; }
  .process__step { max-width: 180px; }
}

/* ── Work / Portfolio ───────────────────────────────────── */
.work { background: var(--bg); }

.work__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: auto auto;
  gap: 24px;
}

.work-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
}
.work-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}
.work-card--wide {
  grid-column: 1 / -1;
  flex-direction: row;
}

.work-card__content {
  padding: 36px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.work-card__tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.work-card__tags span {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--accent);
  background: rgba(245,158,11,0.1);
  border: 1px solid rgba(245,158,11,0.2);
  padding: 3px 10px;
  border-radius: 4px;
}

.work-card__content h3 {
  font-size: 20px;
  font-weight: 700;
  line-height: 1.3;
}

.work-card__content p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  flex: 1;
}

.work-card__metrics {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.work-metric {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.work-metric span {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.work-metric {
  font-size: 12px;
  color: var(--text-muted);
}

.work-card__visual {
  min-height: 140px;
  flex-shrink: 0;
}
.work-card--wide .work-card__visual {
  width: 240px;
  min-height: unset;
}

.work-card__visual--blue {
  background: linear-gradient(135deg, rgba(96,165,250,0.15), rgba(167,139,250,0.1));
  position: relative;
  overflow: hidden;
}
.work-card__visual--blue::after {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    45deg,
    transparent,
    transparent 20px,
    rgba(96,165,250,0.05) 20px,
    rgba(96,165,250,0.05) 21px
  );
}

.work-card__visual--amber {
  background: linear-gradient(135deg, rgba(245,158,11,0.12), rgba(251,146,60,0.08));
}
.work-card__visual--green {
  background: linear-gradient(135deg, rgba(52,211,153,0.12), rgba(45,212,191,0.08));
}

@media (max-width: 720px) {
  .work__grid { grid-template-columns: 1fr; }
  .work-card--wide { flex-direction: column; }
  .work-card--wide .work-card__visual { width: 100%; min-height: 120px; }
}

/* ── Typewriter cursor ──────────────────────────────────── */
.hero__typed {
  display: inline-block;
  min-width: 2px;
}
.hero__typed::after {
  content: '|';
  display: inline-block;
  color: var(--accent);
  animation: blink 0.8s step-end infinite;
  margin-left: 2px;
}
@keyframes blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0; }
}

/* ── Testimonials ───────────────────────────────────────── */
.testimonials { background: var(--bg-card); }

.testimonials__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.testimonial-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  transition: border-color 0.2s, transform 0.2s;
}
.testimonial-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
}
.testimonial-card--featured {
  border-color: rgba(245,158,11,0.3);
  background: linear-gradient(135deg, rgba(245,158,11,0.04), rgba(251,146,60,0.02));
}

.testimonial-card__stars {
  color: var(--accent);
  font-size: 16px;
  letter-spacing: 2px;
}

.testimonial-card__quote {
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-muted);
  flex: 1;
  font-style: italic;
}

.testimonial-card__author {
  display: flex;
  align-items: center;
  gap: 14px;
}

.testimonial-card__avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #0a0b0f;
  font-weight: 800;
  font-size: 13px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.testimonial-card__author strong {
  display: block;
  font-size: 14px;
  margin-bottom: 2px;
}
.testimonial-card__author span {
  font-size: 12px;
  color: var(--text-muted);
}

/* ── Fade-in animation ──────────────────────────────────── */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 900px) {
  .testimonials__grid { grid-template-columns: 1fr; }
}
@media (min-width: 641px) and (max-width: 900px) {
  .testimonials__grid { grid-template-columns: 1fr 1fr; }
}