/* =========================
   Xpather Landing
   BEM + logical properties
   Mobile-first responsive
   ========================= */

/* --- Xpather brand tokens --- */
:root {
  --xp-accent: #fa5728;
  --xp-accent-hover: #e84d20;
  --xp-accent-soft: rgba(250, 87, 40, 0.12);
}

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--text-main);
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  -webkit-font-smoothing: antialiased;
}

[hidden] { display: none !important; }
a { color: inherit; }
img, svg { display: block; }

/* =========================
   Utility
   ========================= */

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap; border: 0;
}

/* =========================
   Icon
   ========================= */

.icon {
  width: 1em; height: 1em;
  display: inline-block;
  vertical-align: -0.125em;
  fill: currentColor;
  flex-shrink: 0;
}

.icon--sm  { width: 0.875em; height: 0.875em; }
.icon--lg  { width: 1.25em; height: 1.25em; }
.icon--xl  { width: 1.5em; height: 1.5em; }
.icon--flag {
  width: 1.5em;
  height: 1em;
  border-radius: 2px;
  fill: none;
}

/* =========================
   Container
   ========================= */

.container {
  max-width: 1100px;
  margin-inline: auto;
  padding-inline: var(--space-4);
}

@media (min-width: 768px) {
  .container { padding-inline: var(--space-5); }
}

/* =========================
   Typography
   ========================= */

.text-display {
  font-size: clamp(2rem, 3.2vw, 3rem);
  line-height: 1.1;
  font-weight: var(--fw-bold);
  letter-spacing: -0.02em;
  margin: 0;
}

.text-title {
  font-size: var(--fs-xl);
  line-height: 1.25;
  font-weight: var(--fw-semibold);
  margin: 0;
}

.text-lead {
  font-size: 1.05rem;
  line-height: 1.6;
  color: var(--text-muted);
  margin: 0;
}

/* =========================
   Button
   ========================= */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font: inherit;
  font-size: var(--fs-control);
  line-height: var(--lh-control);
  padding: var(--control-pad-y) var(--control-pad-x);
  border: var(--border-1) solid transparent;
  border-radius: var(--control-radius);
  cursor: pointer;
  text-decoration: none;
  transition: background var(--transition-fast), color var(--transition-fast),
              border-color var(--transition-fast);
  white-space: nowrap;
}

.btn--primary {
  background: var(--xp-accent);
  color: #fff;
}
.btn--primary:hover {
  background: var(--xp-accent-hover);
}

.btn--ghost {
  background: transparent;
  color: var(--text-main);
  border-color: var(--border-strong);
}
.btn--ghost:hover {
  background: var(--primary-soft);
  border-color: var(--primary);
  color: var(--primary);
}

.btn--lg {
  font-size: calc(var(--fs-control) * var(--control-scale-lg));
  padding: calc(var(--control-pad-y) * 1.4) calc(var(--control-pad-x) * 1.5);
}

/* =========================
   Nav
   ========================= */

.nav {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  background: var(--nav-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-block-end: 1px solid var(--border-subtle);
}

.nav__inner {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  height: 3.5rem;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: var(--fw-semibold);
  font-size: var(--fs-lg);
  text-decoration: none;
  color: var(--text-main);
  flex-shrink: 0;
}

.nav__logo-svg {
  height: 1.6rem;
  width: auto;
  fill: currentColor;
}

.nav__links {
  display: none;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: var(--space-4);
}

.nav__links a {
  font-size: var(--fs-sm);
  text-decoration: none;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}
.nav__links a:hover {
  color: var(--text-main);
}

@media (min-width: 768px) {
  .nav__links { display: flex; }
}

/* Mobile menu */
.nav__links.is-open {
  display: flex;
  flex-direction: column;
  position: absolute;
  top: 3.5rem;
  inset-inline: 0;
  background: var(--nav-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: var(--space-4);
  gap: var(--space-3);
  border-block-end: 1px solid var(--border-subtle);
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-inline-start: auto;
}

.nav__btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  background: none;
  border: none;
  border-radius: var(--radius);
  color: var(--text-muted);
  cursor: pointer;
  transition: color var(--transition-fast), background var(--transition-fast);
}
.nav__btn:hover {
  color: var(--text-main);
  background: var(--primary-soft);
}

.nav__menu-btn {
  composes: nav__btn;
}

@media (min-width: 768px) {
  .nav__menu-btn { display: none; }
}

/* =========================
   Section
   ========================= */

.section {
  padding-block: clamp(3rem, 6vw, 5rem);
}

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

.section__header {
  text-align: center;
  margin-block-end: clamp(2rem, 4vw, 3rem);
}

.section__header .text-lead {
  margin-block-start: var(--space-3);
  max-width: 600px;
  margin-inline: auto;
}

/* =========================
   Hero
   ========================= */

.hero {
  padding-block: clamp(3rem, 8vw, 6rem) clamp(2rem, 4vw, 3rem);
  text-align: center;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--xp-accent);
  background: var(--xp-accent-soft);
  padding: 0.25em 0.75em;
  border-radius: var(--r-pill);
  margin-block-end: var(--space-4);
}

.hero .text-display {
  max-width: 720px;
  margin-inline: auto;
}

.hero .text-lead {
  max-width: 560px;
  margin-inline: auto;
  margin-block-start: var(--space-4);
}

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-3);
  margin-block-start: var(--space-6);
}

.hero__img {
  margin-block-start: clamp(2rem, 4vw, 3rem);
  max-width: 880px;
  margin-inline: auto;
}

.hero__img img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

/* =========================
   Features grid
   ========================= */

.features__grid {
  display: grid;
  gap: var(--space-5);
  grid-template-columns: 1fr;
}

@media (min-width: 480px) {
  .features__grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 768px) {
  .features__grid { grid-template-columns: repeat(3, 1fr); }
}

.feature {
  padding: var(--space-5);
  border-radius: var(--radius-lg);
  background: var(--bg-soft);
  border: 1px solid var(--border-subtle);
}

.feature__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: var(--radius);
  background: var(--xp-accent-soft);
  color: var(--xp-accent);
  font-size: 1.25rem;
  margin-block-end: var(--space-3);
}

.feature__title {
  font-size: var(--fs-md);
  font-weight: var(--fw-semibold);
  margin: 0 0 var(--space-2);
}

.feature__desc {
  font-size: var(--fs-sm);
  color: var(--text-muted);
  line-height: 1.6;
  margin: 0;
}

/* =========================
   Steps (How it works)
   ========================= */

.steps {
  display: grid;
  gap: var(--space-5);
  grid-template-columns: 1fr;
  counter-reset: step;
}

@media (min-width: 768px) {
  .steps { grid-template-columns: repeat(3, 1fr); }
}

.step {
  text-align: center;
  counter-increment: step;
}

.step__number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  margin-inline: auto;
  margin-block-end: var(--space-3);
  border-radius: 50%;
  background: var(--xp-accent);
  color: #fff;
  font-size: var(--fs-lg);
  font-weight: var(--fw-bold);
}

.step__title {
  font-size: var(--fs-md);
  font-weight: var(--fw-semibold);
  margin: 0 0 var(--space-2);
}

.step__desc {
  font-size: var(--fs-sm);
  color: var(--text-muted);
  line-height: 1.6;
  margin: 0;
}

/* =========================
   Privacy
   ========================= */

.privacy__grid {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: 1fr;
}

@media (min-width: 480px) {
  .privacy__grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 768px) {
  .privacy__grid { grid-template-columns: repeat(3, 1fr); }
}

.privacy__item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: var(--fs-sm);
  color: var(--text-muted);
  line-height: 1.6;
}

.privacy__icon {
  flex-shrink: 0;
  color: var(--success);
  font-size: 1.25rem;
  margin-block-start: 0.1em;
}

/* =========================
   CTA bottom
   ========================= */

.cta-bottom {
  text-align: center;
  padding-block: clamp(3rem, 6vw, 5rem);
}

.cta-bottom .text-title {
  margin-block-end: var(--space-4);
}

.cta-bottom__links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-3);
}

/* =========================
   Footer
   ========================= */

.footer {
  border-block-start: 1px solid var(--border-subtle);
  padding-block: var(--space-5);
}

.footer__inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--fs-sm);
  color: var(--text-muted);
}

.footer__links {
  display: flex;
  gap: var(--space-4);
}

.footer__links a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--transition-fast);
}
.footer__links a:hover {
  color: var(--text-main);
}

.footer__sponsor {
  display: inline-flex;
  align-items: center;
  gap: 0.35em;
}

/* =========================
   Gallery (horizontal carousel)
   ========================= */

.gallery {
  margin-block-start: clamp(2rem, 4vw, 3rem);
  max-width: 960px;
  margin-inline: auto;
}

.gallery__track {
  display: flex;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  gap: var(--space-4);
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.gallery__track::-webkit-scrollbar { display: none; }

.gallery__slide {
  flex: 0 0 100%;
  scroll-snap-align: center;
  margin: 0;
}

.gallery__slide img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.gallery__caption {
  text-align: center;
  font-size: var(--fs-sm);
  color: var(--text-muted);
  margin-block-start: var(--space-3);
}

.gallery__nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  margin-block-start: var(--space-4);
}

.gallery__btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  background: var(--bg-soft);
  border: 1px solid var(--border-subtle);
  border-radius: 50%;
  color: var(--text-muted);
  cursor: pointer;
  transition: color var(--transition-fast), background var(--transition-fast),
              border-color var(--transition-fast);
}
.gallery__btn:hover {
  color: var(--text-main);
  background: var(--primary-soft);
  border-color: var(--primary);
}

.gallery__dots {
  display: flex;
  gap: 0.5rem;
}

.gallery__dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--border-strong);
  border: none;
  padding: 0;
  cursor: pointer;
  transition: background var(--transition-fast), transform var(--transition-fast);
}
.gallery__dot.is-active {
  background: var(--xp-accent);
  transform: scale(1.3);
}