/* ============================================================
   Walmart $1,000 Gift Card — Promotional Landing Page
   Premium e-commerce / rewards aesthetic, mobile-first.
   ============================================================ */

:root {
  --blue-700: #065fd4;
  --blue-600: #0a6df5;
  --blue-500: #2f80ed;
  --blue-100: #e8f0fe;
  --yellow-400: #ffc220;
  --yellow-300: #ffd45a;
  --ink: #0b1c33;
  --ink-soft: #42536b;
  --muted: #6b7a90;
  --line: #e5ebf4;
  --surface: #ffffff;
  --bg-soft: #f6f9fd;
  --shadow-sm: 0 2px 10px rgba(11, 28, 51, 0.06);
  --shadow-md: 0 12px 34px rgba(11, 28, 51, 0.10);
  --shadow-lg: 0 24px 60px rgba(11, 28, 51, 0.16);
  --radius: 20px;
  --radius-sm: 13px;
  --maxw: 1140px;
  --font: "Inter", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
}

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

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

body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--surface);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, p { margin: 0; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }

.container {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: 20px;
}

/* ---------- Buttons ---------- */
.btn {
  --pad: 14px 26px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: none;
  border-radius: 999px;
  font-weight: 800;
  font-size: 1rem;
  letter-spacing: 0.02em;
  padding: var(--pad);
  color: #7a5000;
  background: linear-gradient(135deg, var(--yellow-300), var(--yellow-400));
  box-shadow: 0 8px 20px rgba(226, 158, 10, 0.30);
  transition: transform 0.15s ease, box-shadow 0.2s ease, filter 0.2s ease;
  transform: scale(1);
  text-align: center;
}
.btn:hover {
  transform: scale(1.03);
  box-shadow: 0 12px 26px rgba(226, 158, 10, 0.38);
  filter: brightness(1.02);
}
.btn:active { transform: scale(0.97); }
.btn:focus-visible { outline: 3px solid var(--blue-600); outline-offset: 3px; }

.btn--primary { background: linear-gradient(135deg, #ffd45a, #ffc220); }
.btn--invert {
  background: var(--surface);
  color: var(--blue-700);
  box-shadow: var(--shadow-md);
}
.btn--lg { --pad: 17px 34px; font-size: 1.06rem; }
.btn--xl { --pad: 20px 46px; font-size: 1.15rem; }
.btn--sm { --pad: 10px 18px; font-size: 0.85rem; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.82);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid rgba(229, 235, 244, 0.7);
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 14px;
}
.brand { display: inline-flex; align-items: center; gap: 9px; font-weight: 800; font-size: 1.12rem; }
.brand__mark { color: var(--blue-600); }
.brand__name { color: var(--blue-700); }
.brand__name span { color: var(--ink); }
.header-cta { flex: 0 0 auto; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  padding: 64px 0 72px;
}
.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(60% 80% at 80% 10%, rgba(255, 194, 32, 0.18), transparent 60%),
    radial-gradient(50% 60% at 15% 85%, rgba(42, 128, 245, 0.14), transparent 60%),
    linear-gradient(180deg, #fbfdff 0%, var(--bg-soft) 100%);
  animation: bgDrift 14s ease-in-out infinite alternate;
}
.hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  gap: 40px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--blue-700);
  background: var(--blue-100);
  border: 1px solid rgba(6, 95, 212, 0.16);
  padding: 8px 16px;
  border-radius: 999px;
  margin-bottom: 22px;
}
.hero__title {
  font-size: clamp(2rem, 5vw, 3.4rem);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin-bottom: 18px;
}
.text-accent {
  background: linear-gradient(135deg, var(--blue-600), var(--blue-500));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero__sub {
  font-size: 1.13rem;
  color: var(--ink-soft);
  max-width: 30em;
  margin-bottom: 30px;
}
.hero__fine {
  margin-top: 16px;
  font-size: 0.82rem;
  color: var(--muted);
}

/* ---------- 3D Reward card scene ---------- */
.hero__visual { display: flex; justify-content: center; }
.reward-scene {
  position: relative;
  width: 100%;
  max-width: 360px;
  padding: 30px 10px 60px;
}

.reward-card {
  position: relative;
  width: 100%;
  aspect-ratio: 1.7 / 1;
  border-radius: 20px;
  padding: 26px 26px 20px;
  background: linear-gradient(135deg, #0947b0, #0a6df5 55%, #1f7dff);
  box-shadow: var(--shadow-lg);
  transform-style: preserve-3d;
  user-select: none;
  color: #fff;
  overflow: hidden;
}
.reward-card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 20px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.35);
  pointer-events: none;
}
.reward-card__glare {
  position: absolute;
  top: -40%;
  left: -30%;
  width: 70%;
  height: 180%;
  background: linear-gradient(115deg, rgba(255, 255, 255, 0.30), rgba(255, 255, 255, 0));
  transform: rotate(12deg);
  pointer-events: none;
}
.reward-card__top { display: flex; align-items: center; justify-content: space-between; }
.reward-card__brand { font-size: 0.78rem; font-weight: 500; letter-spacing: 0.03em; display: flex; flex-direction: column; line-height: 1.2; }
.reward-card__brand b { font-size: 1.02rem; font-weight: 800; letter-spacing: 0.01em; }
.reward-card__chip { filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.25)); }
.reward-card__amount {
  font-size: clamp(2rem, 6vw, 2.7rem);
  font-weight: 900;
  margin: 8px 0 4px;
  letter-spacing: -0.01em;
}
.reward-card__bottom { display: flex; align-items: flex-end; justify-content: space-between; }
.reward-card__promo { font-size: 0.68rem; font-weight: 600; letter-spacing: 0.1em; opacity: 0.9; }

/* Floating entrance animation (autoplays on mobile / no hover) */
.reward-scene .reward-card {
  animation: floatCard 5s ease-in-out infinite;
}
.reward-card__shadow {
  position: absolute;
  bottom: 26px;
  left: 12%;
  right: 12%;
  height: 26px;
  background: radial-gradient(50% 100% at 50% 50%, rgba(11, 28, 51, 0.28), transparent 70%);
  filter: blur(6px);
  animation: shadowPulse 5s ease-in-out infinite;
  pointer-events: none;
}
@keyframes floatCard {
  0%, 100% { transform: translateY(0) rotate(-1deg); }
  50% { transform: translateY(-12px) rotate(1.2deg); }
}
@keyframes shadowPulse {
  0%, 100% { transform: scaleX(1); opacity: 0.8; }
  50% { transform: scaleX(0.82); opacity: 0.6; }
}
@keyframes bgDrift {
  from { transform: translate3d(0, 0, 0); }
  to { transform: translate3d(-2%, 2%, 0); }
}

.particle {
  position: absolute;
  font-size: 1.3rem;
  opacity: 0;
  pointer-events: none;
  animation: twinkle 4.5s ease-in-out infinite;
}
.particle--1 { top: 6%; left: 8%; animation-delay: 0s; }
.particle--2 { top: 14%; right: 6%; animation-delay: 1.4s; font-size: 1rem; }
.particle--3 { bottom: 14%; right: 16%; animation-delay: 2.6s; font-size: 0.9rem; }
@keyframes twinkle {
  0%, 100% { opacity: 0; transform: translateY(6px) scale(0.8); }
  50% { opacity: 0.9; transform: translateY(-6px) scale(1.1); }
}

/* ---------- Trust strip ---------- */
.trust { background: var(--surface); border-block: 1px solid var(--line); }
.trust__list {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(18px, 5vw, 48px);
  flex-wrap: wrap;
  padding-block: 24px;
  margin: 0;
}
.trust__item {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-weight: 700;
  color: var(--ink-soft);
  font-size: 0.98rem;
}
.icon-c { width: 22px; height: 22px; color: #16a34a; flex-shrink: 0; }
.trust__note {
  text-align: center;
  color: var(--muted);
  font-size: 0.92rem;
  padding-bottom: 26px;
  margin: 0;
}

/* ---------- Sections ---------- */
.section { padding: 78px 0; }
.section__eyebrow {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--blue-600);
  margin-bottom: 12px;
}
.section__title {
  font-size: clamp(1.7rem, 4vw, 2.5rem);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: 14px;
}
.section__lede {
  color: var(--ink-soft);
  max-width: 34em;
  font-size: 1.05rem;
}
.section__cta {
  text-align: center;
  margin-top: 46px;
}

/* ---------- Steps ---------- */
.how { background: var(--bg-soft); }
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
  margin-top: 44px;
}
.step {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px 26px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.step:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.step__num {
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--yellow-400);
  -webkit-text-stroke: 1.2px #d98f00;
  letter-spacing: 0.02em;
  margin-bottom: 10px;
}
.step__title { font-size: 1.14rem; font-weight: 800; margin-bottom: 8px; }
.step__text { color: var(--muted); font-size: 0.95rem; }

/* ---------- Tilt section ---------- */
.tilt-section__inner {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  align-items: center;
  gap: 40px;
}
.tilt-stage { display: flex; justify-content: center; }
.reward-card--tilt { max-width: 360px; transition: transform 0.16s ease, box-shadow 0.3s ease; }
.reward-card--tilt.is-tilting {
  box-shadow: 0 34px 70px rgba(11, 28, 51, 0.28);
}

/* ---------- Benefits ---------- */
.why { background: linear-gradient(180deg, #fff, var(--bg-soft)); }
.benefits {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 44px;
}
.benefit {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 26px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.benefit:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.benefit__icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: var(--blue-100);
  color: var(--blue-600);
  margin-bottom: 18px;
}
.benefit__icon svg { width: 26px; height: 26px; }
.benefit__title { font-size: 1.12rem; font-weight: 800; margin-bottom: 8px; }
.benefit__text { color: var(--muted); font-size: 0.95rem; }

/* ---------- CTA band ---------- */
.cta-band {
  background:
    radial-gradient(70% 120% at 85% 0%, rgba(255, 194, 32, 0.22), transparent 60%),
    linear-gradient(135deg, #04337a, #065fd4);
  color: #fff;
}
.cta-band__inner { text-align: center; }
.cta-band__title {
  font-size: clamp(1.7rem, 4vw, 2.5rem);
  font-weight: 900;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}
.cta-band__text { font-size: 1.1rem; opacity: 0.9; margin-bottom: 34px; }
.cta-band .hero__fine { color: rgba(255, 255, 255, 0.75); }

/* ---------- FAQ accordion ---------- */
.faq__narrow { max-width: 760px; }
.accordion { margin-top: 34px; }
.acc-item {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface);
  margin-bottom: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.acc-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  text-align: left;
  padding: 18px 20px;
  background: none;
  border: none;
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--ink);
}
.acc-trigger:focus-visible { outline: 3px solid var(--blue-600); outline-offset: -3px; }
.acc-icon {
  width: 20px;
  height: 20px;
  color: var(--blue-600);
  flex-shrink: 0;
  transition: transform 0.25s ease;
}
.acc-item.is-open .acc-icon { transform: rotate(180deg); }
.acc-panel { padding: 0 20px 18px; color: var(--ink-soft); font-size: 0.98rem; }
.acc-panel p { margin: 0; }

/* ---------- Final CTA ---------- */
.final-cta {
  background:
    radial-gradient(50% 90% at 50% 120%, rgba(255, 194, 32, 0.25), transparent 60%),
    linear-gradient(180deg, #051a38, #071f44);
  color: #fff;
}
.final-cta__inner { text-align: center; }
.final-cta__title {
  font-size: clamp(1.8rem, 4.5vw, 2.8rem);
  font-weight: 900;
  letter-spacing: -0.02em;
  max-width: 20em;
  margin-inline: auto;
  margin-bottom: 14px;
}
.final-cta__text { font-size: 1.1rem; opacity: 0.9; margin-bottom: 34px; }
.final-cta__fine { margin-top: 18px; font-size: 0.8rem; opacity: 0.6; }

/* ---------- Footer ---------- */
.site-footer { background: #0b1c33; color: #cfd9e8; padding: 44px 0; text-align: center; }
.site-footer__lede { max-width: 46em; margin: 0 auto 20px; font-size: 0.9rem; color: #93a4bd; }
.site-footer__nav { display: flex; flex-wrap: wrap; gap: 6px 26px; justify-content: center; margin-bottom: 22px; }
.site-footer__nav a { color: #cfd9e8; font-weight: 600; font-size: 0.95rem; transition: color 0.2s ease; }
.site-footer__nav a:hover { color: var(--yellow-400); }
.site-footer__copy { font-size: 0.85rem; color: #7d8ea8; }

/* ---------- Modal ---------- */
.modal { position: fixed; inset: 0; z-index: 100; display: grid; place-items: center; padding: 20px; }
.modal[hidden] { display: none; }
.modal__backdrop { position: absolute; inset: 0; background: rgba(11, 28, 51, 0.55); -webkit-backdrop-filter: blur(2px); backdrop-filter: blur(2px); }
.modal__card {
  position: relative;
  width: 100%;
  max-width: 560px;
  background: var(--surface);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow-lg);
  max-height: 80vh;
  overflow: auto;
}
.modal__close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: none;
  background: var(--bg-soft);
  color: var(--ink-soft);
  display: grid;
  place-items: center;
}
.modal__close:hover { background: var(--blue-100); color: var(--blue-700); }
.modal__title { font-size: 1.25rem; font-weight: 800; margin-bottom: 14px; padding-right: 34px; }
.modal__body { color: var(--ink-soft); font-size: 0.97rem; }
.modal__body p { margin-bottom: 12px; }

/* ---------- Sticky mobile CTA ---------- */
.sticky-cta {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 40;
  transform: translateY(10%);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.3s ease, opacity 0.3s ease;
}
.sticky-cta.is-visible {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}
.sticky-cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0), rgba(246, 249, 253, 0.92) 40%);
  pointer-events: none;
}
.sticky-cta__inner {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: var(--maxw);
  margin-inline: auto;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid var(--line);
  border-bottom: none;
  border-radius: 18px 18px 0 0;
  box-shadow: 0 -10px 30px rgba(11, 28, 51, 0.12);
}
.sticky-cta__text { flex: 1; }
.sticky-cta__label { display: block; font-weight: 800; font-size: 0.92rem; color: var(--ink); }
.sticky-cta__sub { font-size: 0.74rem; color: var(--muted); }
.sticky-cta__btn { flex: 0 0 auto; }
.sticky-cta__close {
  width: 30px;
  height: 30px;
  border: none;
  background: var(--bg-soft);
  border-radius: 50%;
  color: var(--ink-soft);
  display: grid;
  place-items: center;
  flex: 0 0 auto;
}
.sticky-cta__close:hover { background: var(--blue-100); color: var(--blue-700); }

/* ---------- Scroll reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.is-in {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .hero__grid { grid-template-columns: 1fr; text-align: center; }
  .hero__content { display: flex; flex-direction: column; align-items: center; }
  .hero__sub { margin-left: auto; margin-right: auto; }
  .hero__visual { order: -1; }
  .tilt-section__inner { grid-template-columns: 1fr; text-align: center; }
  .tilt-section__content { display: flex; flex-direction: column; align-items: center; }
  .tilt-section__content .section__lede { margin-inline: auto; }
  .steps { grid-template-columns: 1fr; gap: 16px; }
  .benefits { grid-template-columns: 1fr; }
  .reward-scene { max-width: 320px; }
}

/* Sticky CTA: mobile only */
@media (min-width: 540px) {
  .sticky-cta { display: none; }
}
@media (max-width: 539px) {
  .sticky-cta { display: block; }
  .sticky-cta__text { display: none; }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation-duration: 0.001s !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001s !important;
  }
  .reveal { opacity: 1; transform: none; }
}