/* ==========================================================================
   RAEEN EXCHANGE — BOLD TECH DESIGN SYSTEM
   Style: Sharp-edged, geometric, bold orange — inspired by GamingTec
   ========================================================================== */

:root {
  --orange: #F97316;
  --orange-dark: #EA580C;
  --amber: #FB923C;
  --bg: #080808;
  --bg-alt: #0E0E0E;
  --bg-strip: #111111;
  --surface: rgba(255,255,255,0.04);
  --border: rgba(255,255,255,0.08);
  --text: #F8FAFC;
  --text-muted: #94A3B8;
  --font-head: 'Outfit', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
}

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

html { font-family: var(--font-body); background: var(--bg); color: var(--text); scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body { min-height: 100vh; background: var(--bg); }

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }
button { cursor: pointer; font-family: inherit; }

.container { max-width: 1180px; margin: 0 auto; padding: 0 1.5rem; }

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  font-family: var(--font-head); font-weight: 700; border-radius: 6px;
  padding: 0.75rem 1.5rem; font-size: 0.95rem;
  transition: all 0.2s var(--ease); position: relative; overflow: hidden;
  border: none;
}
.btn-primary {
  background: var(--orange); color: #fff;
  box-shadow: 0 0 0 0 rgba(249,115,22,0);
}
.btn-primary:hover { background: var(--orange-dark); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(249,115,22,0.4); }
.btn-ghost { border: 2px solid rgba(255,255,255,0.2); color: #fff; }
.btn-ghost:hover { border-color: var(--orange); color: var(--orange); transform: translateY(-2px); }
.btn-lg { padding: 0.9rem 2rem; font-size: 1rem; }
.btn-block { width: 100%; }
.btn-primary.loading .btn-text { opacity: 0; }
.btn-primary.loading .spinner { display: block; }
.spinner { display: none; width: 1.1rem; height: 1.1rem; border: 2px solid rgba(255,255,255,0.3); border-top-color: #fff; border-radius: 50%; animation: spin 0.7s linear infinite; position: absolute; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ===== NAVBAR — White bg, orange accents ===== */
.navbar {
  position: fixed; top: 0; left: 0; width: 100%; z-index: 100;
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  border-bottom: 3px solid var(--orange);
  transition: box-shadow 0.3s var(--ease);
}
.navbar.scrolled { box-shadow: 0 4px 20px rgba(0,0,0,0.15); }
.navbar-container { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.logo { display: flex; align-items: center; gap: 0.6rem; }
.logo-mark { width: 2.25rem; height: 2.25rem; flex-shrink: 0; }
.logo-text { font-family: var(--font-head); font-size: 1.2rem; font-weight: 800; color: #111; letter-spacing: -0.02em; }
.logo-text span { color: var(--orange); }

.nav-menu { display: flex; align-items: center; }
.nav-list { display: flex; gap: 2rem; }
.nav-link {
  font-size: 0.9rem; font-weight: 600; color: #444;
  position: relative; padding-bottom: 4px;
  transition: color 0.2s;
}
.nav-link::after {
  content: ''; position: absolute; bottom: 0; left: 0;
  width: 0; height: 3px; background: var(--orange);
  transition: width 0.25s var(--ease);
}
.nav-link:hover { color: var(--orange); }
.nav-link:hover::after { width: 100%; }

.nav-actions { display: flex; align-items: center; gap: 1rem; }
.nav-cta { padding: 0.55rem 1.25rem; font-size: 0.875rem; }

.mobile-toggle { display: none; width: 2.5rem; height: 2.5rem; background: none; border: none; position: relative; }
.hamburger, .hamburger::before, .hamburger::after {
  display: block; width: 1.5rem; height: 2px;
  background: #111; position: absolute; transition: all 0.3s var(--ease);
}
.hamburger { left: 50%; top: 50%; transform: translate(-50%,-50%); }
.hamburger::before { content: ''; top: -8px; left: 0; }
.hamburger::after { content: ''; top: 8px; left: 0; }
.mobile-toggle.active .hamburger { background: transparent; }
.mobile-toggle.active .hamburger::before { transform: rotate(45deg) translate(0, 8px); }
.mobile-toggle.active .hamburger::after { transform: rotate(-45deg) translate(0, -8px); }

/* ===== HERO ===== */
.hero {
  position: relative; background: var(--bg);
  padding: 10rem 0 4rem; text-align: center;
  overflow: hidden;
}

.hero-stripes {
  position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background: repeating-linear-gradient(
    -45deg,
    transparent,
    transparent 40px,
    rgba(249,115,22,0.025) 40px,
    rgba(249,115,22,0.025) 41px
  );
}

.hero-glow {
  position: absolute; top: -200px; left: 50%; transform: translateX(-50%);
  width: 900px; height: 600px;
  background: radial-gradient(ellipse, rgba(249,115,22,0.15) 0%, transparent 70%);
  z-index: 0; pointer-events: none;
}

.hero-content { position: relative; z-index: 1; max-width: 960px; margin: 0 auto; display: flex; flex-direction: column; align-items: center; }

.hero-label {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-size: 0.8rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--orange); margin-bottom: 1.75rem;
  background: rgba(249,115,22,0.08); border: 1px solid rgba(249,115,22,0.25);
  padding: 0.45rem 1rem; border-radius: 4px;
}
.label-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--orange); display: inline-block; box-shadow: 0 0 8px var(--orange); }

.hero-title {
  font-family: var(--font-head); font-size: 5rem; font-weight: 900;
  line-height: 1.04; letter-spacing: -0.04em; color: #fff;
  margin-bottom: 1.5rem;
}

.title-highlight {
  background: linear-gradient(90deg, var(--amber), var(--orange-dark));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

.hero-desc {
  font-size: 1.2rem; color: var(--text-muted); line-height: 1.7;
  margin-bottom: 2.5rem; max-width: 620px; margin-left: auto; margin-right: auto;
}

.hero-ctas { display: flex; gap: 1rem; justify-content: center; margin-bottom: 2rem; }

/* Hero Showcase Mockup */
.hero-showcase {
  position: relative;
  margin-top: 2rem;
  width: 100%;
  max-width: 860px;
}
.showcase-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 85%;
  height: 80%;
  background: radial-gradient(circle, rgba(249,115,22,0.2) 0%, transparent 70%);
  filter: blur(50px);
  z-index: 0;
  pointer-events: none;
}
.showcase-frame {
  position: relative;
  z-index: 1;
  background: rgba(14, 14, 14, 0.85);
  border: 2px solid rgba(249, 115, 22, 0.35);
  border-radius: 8px;
  padding: 0.25rem;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6), 0 0 30px rgba(249, 115, 22, 0.15);
  transition: border-color 0.3s;
}
.showcase-frame:hover {
  border-color: var(--orange);
}
.showcase-image {
  width: 100%;
  height: auto;
  border-radius: 6px;
  display: block;
}

/* FADE IN */
.fade-in { opacity: 0; animation: fadeUp 0.7s ease forwards; }
.fade-in:nth-child(1) { animation-delay: 0.1s; }
.fade-in:nth-child(2) { animation-delay: 0.2s; }
.fade-in:nth-child(3) { animation-delay: 0.35s; }
.fade-in:nth-child(4) { animation-delay: 0.5s; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: none; } }

/* REVEAL ON SCROLL */
@media (prefers-reduced-motion: no-preference) {
  @supports (animation-timeline: view()) {
    .reveal-on-scroll {
      opacity: 0;
      transform: translateY(40px);
      animation: revealUp linear both;
      animation-timeline: view();
      animation-range: entry 0% entry 25%;
    }
    @keyframes revealUp {
      from { opacity: 0; transform: translateY(40px); }
      to { opacity: 1; transform: translateY(0); }
    }
  }
}

/* ===== STATS STRIP ===== */
.stats-strip {
  background: var(--bg-strip);
  border-top: 1px solid rgba(249,115,22,0.2);
  border-bottom: 1px solid rgba(249,115,22,0.2);
}
.stats-inner {
  display: flex; align-items: center; justify-content: space-around;
  padding: 2.5rem 0;
}
.stat-item { display: flex; flex-direction: column; align-items: center; gap: 0.3rem; }
.stat-val { font-family: var(--font-head); font-size: 2.75rem; font-weight: 900; color: #fff; line-height: 1; }
.stat-plus { color: var(--orange); }
.stat-key { font-size: 0.8rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.1em; color: var(--text-muted); }
.stat-divider { width: 1px; height: 3.5rem; background: rgba(249,115,22,0.25); }

/* ===== PLATFORM FEATURES — 6-Card geometric grid ===== */
.features { padding: 7.5rem 0; background: var(--bg-alt); }

.section-label {
  font-size: 0.75rem; font-weight: 800; letter-spacing: 0.15em; text-transform: uppercase;
  color: var(--orange); margin-bottom: 1rem;
}
.section-title {
  font-family: var(--font-head); font-size: 2.75rem; font-weight: 900;
  line-height: 1.1; letter-spacing: -0.03em; color: #fff; margin-bottom: 4rem;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.feature-card {
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: 6px;
  padding: 2.25rem 2rem;
  transition: all 0.25s var(--ease);
  position: relative;
  overflow: hidden;
}
.feature-card:hover {
  border-color: rgba(249, 115, 22, 0.45);
  background: rgba(249, 115, 22, 0.02);
  transform: translateY(-4px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
}
.feature-card .card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}
.feature-card .feature-icon-box {
  width: 3rem;
  height: 3rem;
  background: var(--orange);
  color: #fff;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.feature-card .feature-icon-box svg {
  width: 1.4rem;
  height: 1.4rem;
}
.feature-card .card-num {
  font-family: var(--font-head);
  font-size: 1.75rem;
  font-weight: 900;
  color: rgba(255, 255, 255, 0.07);
  transition: color 0.25s;
}
.feature-card:hover .card-num {
  color: rgba(249, 115, 22, 0.25);
}
.feature-card h3 {
  font-family: var(--font-head);
  font-size: 1.25rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 0.75rem;
}
.feature-card p {
  font-size: 0.925rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* ===== SOLUTIONS TABS ===== */
.solutions-tabs {
  padding: 7rem 0;
  background: var(--bg);
  border-top: 1px solid var(--border);
}

.tab-pills {
  display: flex; gap: 0.5rem; flex-wrap: wrap;
  margin-bottom: 3rem; margin-top: 0.5rem;
}

.tab-pill {
  padding: 0.65rem 1.4rem; border-radius: 6px; font-size: 0.875rem; font-weight: 700;
  background: transparent; border: 2px solid rgba(255,255,255,0.12); color: var(--text-muted);
  transition: all 0.2s var(--ease); font-family: var(--font-head);
}
.tab-pill:hover { border-color: var(--orange); color: var(--orange); }
.tab-pill.active { background: var(--orange); border-color: var(--orange); color: #fff; }
.tab-pill:focus { outline: none; }
.tab-pill:focus-visible { outline: 2px solid var(--orange); outline-offset: 2px; }

.tab-panels { position: relative; }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

.tab-panel-inner {
  display: grid; grid-template-columns: 1fr 1fr; gap: 4rem;
  padding: 3rem; background: var(--surface); border: 1px solid var(--border);
  border-radius: 12px; align-items: center;
}

.tab-text h3 { font-family: var(--font-head); font-size: 1.75rem; font-weight: 800; color: #fff; margin-bottom: 1rem; }
.tab-text p { font-size: 0.975rem; color: var(--text-muted); line-height: 1.7; margin-bottom: 1.5rem; }

.tab-checklist { display: flex; flex-direction: column; gap: 0.6rem; }
.tab-checklist li {
  display: flex; align-items: center; gap: 0.6rem;
  font-size: 0.9rem; color: var(--text-muted);
}
.tab-checklist li::before {
  content: ''; width: 6px; height: 6px; border-radius: 50%;
  background: var(--orange); flex-shrink: 0;
}

/* Tab visuals */
.exchange-diagram { display: flex; flex-direction: column; gap: 0.75rem; }
.exchange-node {
  padding: 0.85rem 1.25rem;
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 8px; font-size: 0.8rem; font-family: 'Courier New', monospace;
  color: var(--text-muted); display: flex; flex-direction: column; gap: 0.2rem;
  position: relative; overflow: hidden;
}
.exchange-node span { font-weight: 700; color: var(--amber); font-size: 0.85rem; }
.exchange-node small { color: var(--text-muted); font-size: 0.72rem; }
.node-primary { border-color: rgba(249,115,22,0.4); background: rgba(249,115,22,0.06); }
.node-pulse {
  position: absolute; right: 1rem; top: 50%; transform: translateY(-50%);
  width: 10px; height: 10px; border-radius: 50%; background: var(--orange);
  box-shadow: 0 0 10px var(--orange);
  animation: pulse-node 2s ease-in-out infinite;
}
@keyframes pulse-node { 0%,100% { box-shadow: 0 0 8px var(--orange); } 50% { box-shadow: 0 0 20px var(--orange), 0 0 40px rgba(249,115,22,0.3); } }

.providers-logo-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.6rem; }
.provider-tile {
  background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.08);
  border-radius: 8px; padding: 0.75rem; display: flex; align-items: center; justify-content: center;
  aspect-ratio: 2/1; overflow: hidden; transition: border-color 0.2s;
}
.provider-tile:hover { border-color: rgba(249,115,22,0.3); }
.provider-tile img { max-height: 1.8rem; max-width: 100%; object-fit: cover; filter: brightness(0) invert(1); opacity: 0.65; }
.provider-tile--more {
  font-size: 0.85rem; font-weight: 700; color: var(--orange);
  background: rgba(249,115,22,0.08); border-color: rgba(249,115,22,0.2);
}

.infra-nodes { display: flex; flex-direction: column; gap: 0.75rem; }
.infra-row { display: grid; grid-template-columns: 1fr 1fr; gap: 0.75rem; }
.infra-node {
  display: flex; flex-direction: column; gap: 0.2rem; padding: 0.85rem 1rem;
  background: rgba(255,255,255,0.03); border: 1px solid rgba(255,255,255,0.06);
  border-radius: 8px; font-family: 'Courier New', monospace;
}
.infra-node span { font-size: 0.8rem; font-weight: 700; color: var(--text-muted); }
.infra-node small { font-size: 0.7rem; color: var(--text-muted); opacity: 0.7; }
.infra-dot { width: 8px; height: 8px; border-radius: 50%; background: #6B7280; margin-bottom: 0.25rem; }
.infra-node.active .infra-dot { background: var(--orange); box-shadow: 0 0 8px rgba(249,115,22,0.7); animation: pulse-node 2s infinite; }
.infra-node.active { border-color: rgba(249,115,22,0.2); }
.infra-status {
  display: flex; align-items: center; gap: 0.5rem; padding: 0.75rem 1rem;
  background: rgba(249,115,22,0.05); border: 1px solid rgba(249,115,22,0.2);
  border-radius: 8px; font-size: 0.8rem; color: var(--amber);
}
.infra-status svg { stroke: var(--orange); }

.payment-method-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 0.6rem; }
.payment-method-badge {
  border: 2px solid rgba(255,255,255,0.1); border-radius: 8px;
  padding: 0.7rem; display: flex; align-items: center; justify-content: center;
  min-height: 3rem;
}
.payment-method-badge svg { width: 100%; height: 100%; max-height: 2.5rem; object-fit: contain; }
.pmb-text { font-size: 0.85rem; font-weight: 800; color: #fff; letter-spacing: 0.04em; }

/* ===== PROCESS — Horizontal stepper ===== */
.process { padding: 7rem 0; background: var(--bg-alt); border-top: 1px solid var(--border); }

.stepper { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; position: relative; margin-top: 1rem; }

.stepper-track {
  position: absolute; top: 2rem; left: calc(25% / 2); right: calc(25% / 2);
  height: 2px; background: linear-gradient(to right, var(--orange), rgba(249,115,22,0.2));
  z-index: 0;
}

.step { display: flex; flex-direction: column; align-items: flex-start; position: relative; z-index: 1; }

.step-number {
  font-family: var(--font-head); font-size: 3.5rem; font-weight: 900;
  color: var(--orange); line-height: 1; margin-bottom: 1.25rem;
  position: relative;
  display: inline-block;
  background: var(--bg-alt);
  padding: 0 0.75rem;
  margin-left: -0.75rem;
  z-index: 2;
}
.step-number::before {
  content: ''; position: absolute; bottom: -0.5rem; left: 0;
  width: 2.5rem; height: 3px; background: var(--orange);
}

.step-title { font-family: var(--font-head); font-size: 1.1rem; font-weight: 800; color: #fff; margin-bottom: 0.6rem; }
.step-desc { font-size: 0.875rem; color: var(--text-muted); line-height: 1.65; }

/* ===== CONTACT ===== */
.contact { padding: 7rem 0; background: var(--bg); border-top: 1px solid var(--border); }

.contact-inner { max-width: 760px; margin: 0 auto; }

.contact-header { text-align: center; margin-bottom: 3rem; }
.contact-sub { font-size: 1rem; color: var(--text-muted); margin-top: 0.75rem; }

.contact-form-card {
  background: var(--surface); border: 1px solid rgba(249,115,22,0.15);
  border-radius: 12px; padding: 2.5rem;
}

.inquiry-form { display: flex; flex-direction: column; gap: 1.25rem; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; }

.form-group { display: flex; flex-direction: column; gap: 0.4rem; }
.form-group label { font-size: 0.82rem; font-weight: 700; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.07em; }

.form-group input, .form-group textarea {
  padding: 0.8rem 1rem;
  background: rgba(255,255,255,0.03); border: 1.5px solid rgba(255,255,255,0.1);
  border-radius: 6px; color: #fff; font-family: var(--font-body); font-size: 0.95rem;
  transition: border-color 0.2s, box-shadow 0.2s; resize: none; width: 100%;
}
.form-group input::placeholder, .form-group textarea::placeholder { color: rgba(255,255,255,0.25); }

.form-group input:focus, .form-group textarea:focus {
  outline: none; border-color: var(--orange);
  box-shadow: 0 0 0 3px rgba(249,115,22,0.15);
}

.form-group.invalid input, .form-group.invalid textarea { border-color: #ef4444; }
.error-msg { font-size: 0.78rem; color: #f87171; display: none; }
.form-group.invalid .error-msg { display: block; }

.form-feedback {
  display: flex; gap: 1rem; align-items: flex-start; margin-top: 1rem;
  padding: 1.25rem; border-radius: 8px; border: 1px solid;
}
.form-success { border-color: rgba(249,115,22,0.3); background: rgba(249,115,22,0.05); }
.form-error { border-color: rgba(239,68,68,0.3); background: rgba(239,68,68,0.05); }
.form-feedback svg { width: 1.75rem; height: 1.75rem; flex-shrink: 0; }
.form-feedback strong { display: block; color: #fff; margin-bottom: 0.25rem; }
.form-feedback p { font-size: 0.875rem; color: var(--text-muted); }

/* ===== FOOTER ===== */
.footer { padding: 3rem 0; border-top: 2px solid var(--orange); background: var(--bg-strip); }
.footer-inner { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 1.5rem; }
.footer-brand { display: flex; flex-direction: column; gap: 0.25rem; }
.footer-name { font-family: var(--font-head); font-weight: 800; font-size: 1.1rem; color: #fff; }
.footer-address { font-size: 0.8rem; color: var(--text-muted); }
.footer-copy {
  width: 100%;
  text-align: left;
  font-size: 0.78rem;
  color: rgba(148,163,184,0.6);
  margin-top: 1.5rem;
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: 1.5rem;
  line-height: 1.6;
}

/* Footer Trust seals */
.footer-trust {
  display: flex;
  gap: 1.5rem;
  align-items: center;
  flex-wrap: wrap;
}
.trust-badge {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  opacity: 0.7;
  transition: opacity 0.2s;
}
.trust-badge:hover {
  opacity: 1;
}
.trust-icon {
  width: 1.15rem;
  height: 1.15rem;
  stroke: var(--orange);
}
.trust-badge-18 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 0.85rem;
  color: var(--orange);
  border: 2px solid var(--orange);
  border-radius: 50%;
  width: 1.75rem;
  height: 1.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .hero-title { font-size: 3.5rem; }
  .hero-showcase { margin-top: 1.5rem; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .tab-panel-inner { grid-template-columns: 1fr; gap: 2rem; }
  .stepper { grid-template-columns: 1fr 1fr; }
  .stepper-track { display: none; }
}

@media (max-width: 768px) {
  .nav-menu {
    position: fixed; top: 0; left: 0; width: 100%; height: 100vh;
    background: #fff; flex-direction: column; justify-content: center; align-items: center;
    transform: translateX(-100%); transition: transform 0.35s var(--ease); z-index: 90;
  }
  .nav-menu.active { transform: none; }
  .nav-list { flex-direction: column; gap: 2rem; text-align: center; }
  .nav-link { font-size: 1.3rem; color: #111; }
  .mobile-toggle { display: flex; align-items: center; justify-content: center; z-index: 110; }
  .nav-cta { display: none; }
  .hero-title { font-size: 2.6rem; }
  .stats-inner { flex-wrap: wrap; gap: 2rem; }
  .stat-divider { display: none; }
  .feature-grid { grid-template-columns: 1fr; }
  .stepper { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; text-align: center; }
  .footer-trust { justify-content: center; }
  .footer-copy { text-align: center; }
}

@media (max-width: 480px) {
  .hero { padding: 8rem 0 3rem; }
  .hero-title { font-size: 2rem; }
  .hero-ctas { flex-direction: column; align-items: center; }
  .section-title { font-size: 2rem; }
}