/* =========================================================
   Zappy — Official Website
   ========================================================= */

:root {
  --bg: #0b0b14;
  --bg-soft: #11111d;
  --surface: #161624;
  --surface-2: #1d1d30;
  --border: rgba(255, 255, 255, 0.08);
  --text: #f5f5fb;
  --text-muted: #a2a2bb;
  --text-dim: #6f6f88;

  --gradient: linear-gradient(135deg, #7c3aed 0%, #d946ef 50%, #fb923c 100%);
  --violet: #8b5cf6;
  --pink: #ec4899;
  --orange: #fb923c;

  --radius: 18px;
  --radius-lg: 26px;
  --shadow: 0 20px 60px -20px rgba(0, 0, 0, 0.65);
  --shadow-glow: 0 0 80px -10px rgba(139, 92, 246, 0.45);

  --font-head: "Sora", "Inter", system-ui, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, sans-serif;

  --header-h: 72px;
  --container: 1160px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 16px);
}

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

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

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

ul {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Typography helpers ---------- */
.gradient-text {
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-head);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--pink);
  margin-bottom: 14px;
}

.section {
  padding: 110px 0;
  position: relative;
}

.section-head {
  max-width: 640px;
  margin: 0 auto 60px;
  text-align: center;
}

.section-title {
  font-family: var(--font-head);
  font-size: clamp(1.9rem, 4vw, 2.75rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: 16px;
}

.section-sub {
  color: var(--text-muted);
  font-size: 1.08rem;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 13px 26px;
  border-radius: 999px;
  transition: transform 0.2s ease, box-shadow 0.25s ease, background 0.25s ease, border-color 0.25s ease;
  white-space: nowrap;
}

.btn svg {
  width: 18px;
  height: 18px;
}

.btn-primary {
  background: var(--gradient);
  color: #fff;
  box-shadow: 0 8px 30px -8px rgba(217, 70, 239, 0.6);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 40px -8px rgba(217, 70, 239, 0.7);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  color: var(--text);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.18);
  transform: translateY(-2px);
}

.btn-lg {
  padding: 16px 32px;
  font-size: 1.02rem;
}

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

.site-header.scrolled {
  background: rgba(11, 11, 20, 0.75);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom-color: var(--border);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-head);
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: var(--gradient);
  color: #fff;
  box-shadow: 0 6px 20px -6px rgba(217, 70, 239, 0.7);
}

.brand-mark svg {
  width: 19px;
  height: 19px;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-link {
  font-size: 0.94rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color 0.2s ease;
  position: relative;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 0;
  height: 2px;
  border-radius: 2px;
  background: var(--gradient);
  transition: width 0.25s ease;
}

.nav-link:hover,
.nav-link.active {
  color: var(--text);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.nav-cta {
  padding: 11px 22px;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  z-index: 110;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  border-radius: 2px;
  background: var(--text);
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.nav-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: calc(var(--header-h) + 90px) 0 110px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(60% 55% at 70% 20%, rgba(124, 58, 237, 0.28), transparent 60%),
    radial-gradient(50% 45% at 20% 75%, rgba(236, 72, 153, 0.18), transparent 60%),
    radial-gradient(40% 40% at 85% 85%, rgba(251, 146, 60, 0.14), transparent 60%);
  pointer-events: none;
}

.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(70% 60% at 50% 40%, #000, transparent);
  -webkit-mask-image: radial-gradient(70% 60% at 50% 40%, #000, transparent);
}

.hero-wrap {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 48px;
  align-items: center;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  padding: 8px 16px;
  border-radius: 999px;
  margin-bottom: 24px;
}

.pill-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gradient);
  box-shadow: 0 0 12px rgba(217, 70, 239, 0.9);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.5); opacity: 0.6; }
}

.hero-title {
  font-family: var(--font-head);
  font-size: clamp(2.4rem, 5.4vw, 3.9rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.08;
  margin-bottom: 22px;
}

.hero-sub {
  font-size: 1.14rem;
  color: var(--text-muted);
  max-width: 520px;
  margin-bottom: 32px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 44px;
}

.hero-stats {
  display: flex;
  gap: 40px;
  flex-wrap: wrap;
}

.hero-stats li {
  display: flex;
  flex-direction: column;
}

.hero-stats strong {
  font-family: var(--font-head);
  font-size: 1.6rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.hero-stats span {
  font-size: 0.86rem;
  color: var(--text-muted);
}

/* Hero visual */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 480px;
}

.phone-frame {
  position: relative;
  width: 270px;
  border-radius: 42px;
  padding: 12px;
  background: linear-gradient(160deg, #2a2a3c, #13131f);
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: var(--shadow);
}

.phone-frame img {
  width: 100%;
  border-radius: 30px;
  object-fit: cover;
}

.phone-notch {
  position: absolute;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  width: 92px;
  height: 22px;
  border-radius: 999px;
  background: #0b0b14;
  z-index: 2;
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.phone-hero {
  animation: float 6s ease-in-out infinite;
  transform-origin: center;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-14px); }
}

.float-card {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 0.86rem;
  font-weight: 600;
  background: rgba(20, 20, 34, 0.9);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 11px 16px;
  box-shadow: var(--shadow);
  animation: float 7s ease-in-out infinite;
}

.fc-icon {
  font-size: 1.1rem;
}

.float-card--style {
  top: 14%;
  left: 2%;
}

.float-card--remove {
  bottom: 16%;
  right: 0;
  animation-delay: -3s;
}

.glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(70px);
  opacity: 0.55;
  pointer-events: none;
}

.glow-a {
  width: 320px;
  height: 320px;
  background: rgba(139, 92, 246, 0.5);
  top: -10%;
  right: 8%;
}

.glow-b {
  width: 260px;
  height: 260px;
  background: rgba(236, 72, 153, 0.4);
  bottom: -6%;
  left: 4%;
}

.glow-c {
  width: 300px;
  height: 300px;
  background: rgba(139, 92, 246, 0.45);
  bottom: 0;
  left: 10%;
}

/* ---------- Features ---------- */
.features {
  background: var(--bg-soft);
}

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

.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-6px);
  border-color: rgba(139, 92, 246, 0.45);
  box-shadow: var(--shadow);
}

.feature-icon {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.2), rgba(236, 72, 153, 0.2));
  color: var(--pink);
  margin-bottom: 20px;
}

.feature-icon svg {
  width: 26px;
  height: 26px;
}

.feature-card h3 {
  font-family: var(--font-head);
  font-size: 1.16rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 10px;
}

.feature-card p {
  color: var(--text-muted);
  font-size: 0.96rem;
}

/* ---------- Showcase / Carousel ---------- */
.showcase {
  position: relative;
  overflow: hidden;
}

.carousel {
  position: relative;
  max-width: 980px;
  margin: 0 auto;
}

.carousel-track {
  display: flex;
  align-items: center;
  gap: 22px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  padding: 20px 8px 40px;
  scrollbar-width: none;
  cursor: grab;
}

.carousel-track::-webkit-scrollbar {
  display: none;
}

.carousel-track.dragging {
  scroll-behavior: auto;
  cursor: grabbing;
}

.carousel-slide {
  flex: 0 0 auto;
  scroll-snap-align: center;
  transition: transform 0.3s ease, opacity 0.3s ease;
  opacity: 0.55;
  transform: scale(0.92);
}

.carousel-slide.is-active {
  opacity: 1;
  transform: scale(1);
}

.carousel-slide .phone-frame {
  width: 230px;
  transition: width 0.3s ease;
}

.carousel-slide.is-active .phone-frame {
  width: 250px;
}

.carousel-controls {
  position: absolute;
  top: 50%;
  left: -4px;
  right: -4px;
  transform: translateY(-50%);
  display: flex;
  justify-content: space-between;
  pointer-events: none;
  z-index: 5;
}

.carousel-btn {
  pointer-events: auto;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: rgba(22, 22, 36, 0.85);
  border: 1px solid var(--border);
  backdrop-filter: blur(8px);
  transition: background 0.2s ease, transform 0.2s ease;
}

.carousel-btn:hover {
  background: rgba(40, 40, 60, 0.9);
  transform: scale(1.06);
}

.carousel-btn svg {
  width: 20px;
  height: 20px;
}

.carousel-dots {
  display: flex;
  justify-content: center;
  gap: 9px;
  margin-top: 4px;
}

.carousel-dot {
  width: 9px;
  height: 9px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.18);
  transition: all 0.3s ease;
}

.carousel-dot.is-active {
  width: 26px;
  background: var(--gradient);
}

.result-card {
  display: grid;
  grid-template-columns: 1fr 0.55fr;
  gap: 36px;
  align-items: center;
  margin-top: 40px;
  padding: 30px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}

.result-frame {
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.result-frame img {
  width: 100%;
  height: auto;
}

.result-caption h3 {
  font-family: var(--font-head);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.result-caption p {
  color: var(--text-muted);
  font-size: 1rem;
}

/* ---------- How it works ---------- */
.how {
  background: var(--bg-soft);
}

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

.step {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 30px;
  overflow: hidden;
}

.step::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.step:hover::before {
  opacity: 1;
}

.step-num {
  font-family: var(--font-head);
  font-size: 2.6rem;
  font-weight: 800;
  line-height: 1;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  margin-bottom: 18px;
}

.step h3 {
  font-family: var(--font-head);
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.step p {
  color: var(--text-muted);
  font-size: 0.97rem;
}

/* ---------- Download ---------- */
.download {
  background:
    radial-gradient(55% 60% at 80% 30%, rgba(124, 58, 237, 0.2), transparent 60%),
    var(--bg);
}

.download-wrap {
  display: grid;
  grid-template-columns: 1fr 0.8fr;
  gap: 56px;
  align-items: center;
}

.store-buttons {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 30px;
}

.store-btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: #fff;
  color: #0b0b14;
  padding: 12px 22px;
  border-radius: 14px;
  transition: transform 0.2s ease, box-shadow 0.25s ease;
}

.store-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 34px -12px rgba(0, 0, 0, 0.7);
}

.store-btn svg {
  width: 26px;
  height: 26px;
}

.store-btn span {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
  font-weight: 700;
  font-size: 1.05rem;
}

.store-btn small {
  font-size: 0.68rem;
  font-weight: 500;
  opacity: 0.65;
}

.download-note {
  margin-top: 18px;
  font-size: 0.88rem;
  color: var(--text-dim);
}

.download-visual {
  position: relative;
  display: flex;
  justify-content: center;
}

.phone-download {
  width: 290px;
  animation: float 7s ease-in-out infinite;
}

/* ---------- FAQ ---------- */
.faq-wrap {
  max-width: 720px;
}

.accordion {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.accordion-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  transition: border-color 0.25s ease;
}

.accordion-item.open {
  border-color: rgba(139, 92, 246, 0.45);
}

.accordion-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  text-align: left;
  padding: 20px 24px;
  font-family: var(--font-head);
  font-size: 1.02rem;
  font-weight: 600;
  color: var(--text);
}

.accordion-icon {
  position: relative;
  flex: 0 0 auto;
  width: 16px;
  height: 16px;
}

.accordion-icon::before,
.accordion-icon::after {
  content: "";
  position: absolute;
  background: var(--text-muted);
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.accordion-icon::before {
  top: 50%;
  left: 0;
  width: 16px;
  height: 2px;
  transform: translateY(-50%);
}

.accordion-icon::after {
  top: 0;
  left: 50%;
  width: 2px;
  height: 16px;
  transform: translateX(-50%);
}

.accordion-item.open .accordion-icon::after {
  opacity: 0;
  transform: translateX(-50%) rotate(90deg);
}

.accordion-panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}

.accordion-panel p {
  padding: 0 24px 22px;
  color: var(--text-muted);
  font-size: 0.96rem;
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--bg-soft);
  border-top: 1px solid var(--border);
  padding: 70px 0 30px;
}

.footer-wrap {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 50px;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.94rem;
  margin-top: 18px;
  max-width: 260px;
}

.footer-col h4 {
  font-family: var(--font-head);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text);
  margin-bottom: 18px;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-col a {
  color: var(--text-muted);
  font-size: 0.94rem;
  transition: color 0.2s ease;
}

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

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding-top: 26px;
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
}

.footer-bottom p {
  color: var(--text-dim);
  font-size: 0.88rem;
}

.socials {
  display: flex;
  gap: 12px;
}

.socials a {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-muted);
  transition: color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.socials a:hover {
  color: var(--text);
  border-color: rgba(139, 92, 246, 0.5);
  transform: translateY(-2px);
}

.socials svg {
  width: 18px;
  height: 18px;
}

/* ---------- Reveal animations ---------- */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* Stagger for feature/step cards */
.features-grid .reveal,
.steps .reveal {
  transition-delay: calc(var(--i, 0) * 80ms);
}

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .hero-wrap,
  .download-wrap {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    min-height: 0;
    margin-top: 20px;
  }

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

  .steps {
    grid-template-columns: 1fr;
    max-width: 480px;
    margin: 0 auto;
  }

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

  .carousel-controls {
    display: none;
  }

  .result-card {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .nav-toggle {
    display: flex;
  }

  .main-nav {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: min(320px, 82vw);
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    gap: 8px;
    padding: 96px 32px 32px;
    background: rgba(13, 13, 22, 0.98);
    backdrop-filter: blur(16px);
    border-left: 1px solid var(--border);
    transform: translateX(100%);
    transition: transform 0.35s ease;
    z-index: 105;
  }

  .main-nav.open {
    transform: translateX(0);
  }

  .nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    width: 100%;
    margin-bottom: 16px;
  }

  .nav-link {
    display: block;
    font-size: 1.15rem;
    padding: 10px 0;
  }

  .nav-cta {
    width: 100%;
  }

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

  .footer-wrap {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .hero-stats {
    gap: 26px;
  }

  .float-card--style {
    left: -6px;
  }
  .float-card--remove {
    right: -8px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .phone-hero,
  .phone-download,
  .float-card {
    animation: none;
  }
  .carousel-track {
    scroll-behavior: auto;
  }
}