/* ==========================================================================
   GlukVPN - components: glass surfaces, buttons, header, footer, chips, phone
   Every surface mirrors the app: rgba(20,15,30,.55) fill + 1px white stroke
   + backdrop blur, radii 14-18px, pill actions.
   ========================================================================== */

/* -------------------------------------------------------------- glass card */

.glass {
  position: relative;
  background: var(--glass-2);
  border: 1px solid var(--stroke);
  border-radius: var(--r-md);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.glass--soft {
  background: rgba(255, 255, 255, 0.035);
  border-color: var(--stroke-soft);
}

.glass--raised {
  box-shadow: var(--glow-soft);
}

.glass--hover {
  transition: transform var(--t-med) var(--ease-soft),
    border-color var(--t-med) ease, background var(--t-med) ease;
}

.glass--hover:hover {
  transform: translateY(-3px);
  border-color: rgba(196, 181, 253, 0.34);
  background: rgba(28, 21, 44, 0.62);
}

/* Thin violet energy line that runs along the top edge of key surfaces */
.glass--edge::before {
  content: "";
  position: absolute;
  inset: 0 12% auto 12%;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(196, 181, 253, 0.55),
    transparent
  );
  opacity: 0.7;
}

/* ----------------------------------------------------------------- buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 12px 24px;
  border: 1px solid transparent;
  border-radius: var(--r-pill);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  cursor: pointer;
  white-space: nowrap;
  transition: transform var(--t-fast) var(--ease-soft),
    box-shadow var(--t-med) ease, background var(--t-med) ease,
    border-color var(--t-med) ease, opacity var(--t-med) ease;
}

.btn:active {
  transform: scale(0.975);
}

.btn svg {
  width: 18px;
  height: 18px;
  flex: none;
}

.btn--primary {
  background: var(--grad-cta);
  color: #07040f;
  box-shadow: var(--glow-violet);
}

.btn--primary:hover {
  box-shadow: 0 22px 70px rgba(124, 92, 246, 0.5);
}

.btn--ghost {
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--stroke);
  color: var(--text-0);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.btn--ghost:hover {
  border-color: rgba(196, 181, 253, 0.45);
  background: rgba(255, 255, 255, 0.07);
}

.btn--sm {
  min-height: 40px;
  padding: 8px 18px;
  font-size: 0.85rem;
}

.btn--lg {
  min-height: 56px;
  padding: 14px 30px;
  font-size: 1rem;
}

.btn--block {
  width: 100%;
}

.btn[aria-disabled="true"],
.btn--muted {
  background: rgba(255, 255, 255, 0.03);
  border-color: var(--stroke-soft);
  color: var(--text-2);
  cursor: default;
  box-shadow: none;
}

/* Pill "arrow" action, straight from the app onboarding CTA */
.btn-arrow {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 6px 6px 6px 26px;
  min-height: 58px;
  border-radius: var(--r-pill);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--stroke);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  font-weight: 600;
  transition: border-color var(--t-med) ease, background var(--t-med) ease;
}

.btn-arrow:hover {
  border-color: rgba(196, 181, 253, 0.45);
  background: rgba(255, 255, 255, 0.07);
}

.btn-arrow__icon {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--grad-cta);
  display: flex;
  align-items: center;
  justify-content: center;
  flex: none;
}

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

/* ------------------------------------------------------------------- chips */

.chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 13px;
  border-radius: var(--r-pill);
  border: 1px solid var(--stroke);
  background: rgba(255, 255, 255, 0.04);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-1);
  white-space: nowrap;
}

.chip__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  flex: none;
}

.chip--live {
  color: var(--green);
  border-color: rgba(94, 231, 163, 0.35);
  background: rgba(94, 231, 163, 0.1);
}

.chip--live .chip__dot {
  box-shadow: 0 0 8px currentColor;
  animation: blink 2.2s ease-in-out infinite;
}

.chip--violet {
  color: var(--violet-light);
  border-color: var(--stroke-violet);
  background: rgba(124, 92, 246, 0.12);
}

.chip--soon {
  color: var(--text-2);
  border-style: dashed;
}

/* ------------------------------------------------------------------ header */

.header {
  position: sticky;
  top: 0;
  z-index: 60;
  padding-block: 12px;
  transition: background var(--t-med) ease, border-color var(--t-med) ease,
    backdrop-filter var(--t-med) ease;
  border-bottom: 1px solid transparent;
}

.header.is-stuck {
  background: rgba(8, 6, 15, 0.72);
  border-bottom-color: var(--stroke-soft);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.header__inner {
  display: flex;
  align-items: center;
  gap: var(--s-5);
  min-height: 52px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
  flex: none;
}

.brand img {
  width: 32px;
  height: 32px;
  border-radius: 10px;
  box-shadow: 0 6px 18px rgba(124, 92, 246, 0.45);
}

.nav {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-inline: auto;
}

.nav__link {
  padding: 9px 14px;
  border-radius: var(--r-pill);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-1);
  transition: color var(--t-fast) ease, background var(--t-fast) ease;
}

.nav__link:hover {
  color: var(--text-0);
  background: rgba(255, 255, 255, 0.05);
}

.nav__link[aria-current="page"] {
  color: var(--violet-light);
  background: rgba(124, 92, 246, 0.14);
}

.header__actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: none;
}

.burger {
  display: none;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: 1px solid var(--stroke);
  background: rgba(255, 255, 255, 0.04);
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.burger span {
  position: relative;
  display: block;
  width: 17px;
  height: 1.6px;
  border-radius: 2px;
  background: var(--text-0);
  transition: transform var(--t-med) var(--ease-soft), opacity var(--t-fast) ease;
}

.burger span::before,
.burger span::after {
  content: "";
  position: absolute;
  left: 0;
  width: 17px;
  height: 1.6px;
  border-radius: 2px;
  background: var(--text-0);
  transition: transform var(--t-med) var(--ease-soft);
}

.burger span::before {
  top: -5.5px;
}

.burger span::after {
  top: 5.5px;
}

.burger[aria-expanded="true"] span {
  background: transparent;
}

.burger[aria-expanded="true"] span::before {
  transform: translateY(5.5px) rotate(45deg);
}

.burger[aria-expanded="true"] span::after {
  transform: translateY(-5.5px) rotate(-45deg);
}

.drawer {
  position: fixed;
  inset: 0;
  z-index: 55;
  padding: calc(var(--header-h) + 22px) var(--gutter) var(--s-6);
  background: rgba(5, 4, 10, 0.86);
  backdrop-filter: blur(22px);
  -webkit-backdrop-filter: blur(22px);
  display: flex;
  flex-direction: column;
  gap: 8px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: opacity var(--t-med) ease, transform var(--t-med) var(--ease-soft),
    visibility var(--t-med);
}

.drawer.is-open {
  opacity: 1;
  visibility: visible;
  transform: none;
}

.drawer__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 15px 18px;
  border-radius: var(--r-sm);
  border: 1px solid var(--stroke-soft);
  background: rgba(255, 255, 255, 0.03);
  font-weight: 600;
}

.drawer__link[aria-current="page"] {
  color: var(--violet-light);
  border-color: var(--stroke-violet);
}

.drawer__link svg {
  width: 16px;
  height: 16px;
  opacity: 0.5;
}

.drawer__cta {
  margin-top: 10px;
}

@media (max-width: 940px) {
  .nav,
  .header__actions .btn {
    display: none;
  }
  .burger {
    display: flex;
  }
  .header__inner {
    justify-content: space-between;
  }
}

/* ------------------------------------------------------------------ footer */

.footer {
  position: relative;
  margin-top: clamp(40px, 6vw, 80px);
  border-top: 1px solid var(--stroke-soft);
  background: linear-gradient(180deg, rgba(10, 7, 20, 0) 0%, rgba(10, 7, 20, 0.65) 45%);
  padding-block: clamp(40px, 5vw, 64px) 28px;
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.6fr repeat(3, 1fr);
  gap: var(--s-6) var(--s-5);
}

.footer__about {
  max-width: 320px;
}

.footer__about p {
  margin-top: 14px;
  font-size: 0.85rem;
  color: var(--text-1);
  line-height: 1.6;
}

.footer__title {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-2);
  margin-bottom: 14px;
}

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

.footer__list a {
  font-size: 0.9rem;
  color: var(--text-1);
  transition: color var(--t-fast) ease;
  width: fit-content;
}

.footer__list a:hover {
  color: var(--violet-light);
}

.footer__bottom {
  margin-top: var(--s-7);
  padding-top: 20px;
  border-top: 1px solid var(--stroke-soft);
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--text-2);
}

@media (max-width: 860px) {
  .footer__grid {
    grid-template-columns: 1fr 1fr;
  }
  .footer__about {
    grid-column: 1 / -1;
    max-width: none;
  }
}

/* ------------------------------------------------------- feature list item */

.icon-badge {
  width: 42px;
  height: 42px;
  border-radius: 13px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(124, 92, 246, 0.14);
  border: 1px solid var(--stroke-violet);
  color: var(--violet-light);
  flex: none;
}

.icon-badge svg {
  width: 20px;
  height: 20px;
}

.icon-badge--green {
  background: rgba(94, 231, 163, 0.12);
  border-color: rgba(94, 231, 163, 0.34);
  color: var(--green);
}

/* --------------------------------------------------------------- FAQ (a11y) */

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

.faq__item {
  border-radius: var(--r-sm);
  border: 1px solid var(--stroke-soft);
  background: rgba(20, 15, 30, 0.5);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  overflow: hidden;
  transition: border-color var(--t-med) ease;
}

.faq__item[open] {
  border-color: var(--stroke-violet);
}

.faq__q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 17px 20px;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.98rem;
  list-style: none;
  min-height: 56px;
}

.faq__q::-webkit-details-marker {
  display: none;
}

.faq__q::after {
  content: "";
  width: 10px;
  height: 10px;
  flex: none;
  border-right: 1.8px solid var(--violet-light);
  border-bottom: 1.8px solid var(--violet-light);
  transform: rotate(45deg) translate(-2px, -2px);
  transition: transform var(--t-med) var(--ease-soft);
}

.faq__item[open] .faq__q::after {
  transform: rotate(-135deg) translate(-2px, -2px);
}

.faq__a {
  padding: 0 20px 18px;
  color: var(--text-1);
  font-size: 0.92rem;
  line-height: 1.65;
  max-width: 70ch;
}

/* ------------------------------------------------------------- phone frame */
/* 1:1 port of the app device shell (390x844, r48) from the mockup */

.phone {
  --phone-w: 390px;
  --phone-h: 844px;
  position: relative;
  width: var(--phone-w);
  height: var(--phone-h);
  flex: none;
  border-radius: 48px;
  background: var(--bg);
  overflow: hidden;
  box-shadow: 0 0 0 9px #0a0a0a, 0 0 0 10px #211d29, 0 50px 120px rgba(0, 0, 0, 0.85);
  color: var(--text-0);
  font-size: 14px;
  line-height: 1.5;
}

.phone__waves {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.85;
  pointer-events: none;
}

.phone__screen {
  position: absolute;
  inset: 0;
  z-index: 1;
  display: flex;
  flex-direction: column;
}

.phone-scale {
  /* wrapper keeps layout height correct while the device is scaled down */
  position: relative;
  width: calc(var(--phone-w, 390px) * var(--scale, 1));
  height: calc(var(--phone-h, 844px) * var(--scale, 1));
}

.phone-scale > .phone {
  position: absolute;
  top: 0;
  left: 0;
  transform: scale(var(--scale, 1));
  transform-origin: top left;
}

.statusbar {
  position: relative;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 26px 0;
  font-size: 13px;
  font-weight: 600;
}

.statusbar__icons {
  display: flex;
  align-items: center;
  gap: 6px;
  opacity: 0.9;
}

/* --------------------------------------------------------------- tooltip */

.tip {
  position: absolute;
  z-index: 20;
  min-width: 148px;
  padding: 11px 13px;
  border-radius: var(--r-sm);
  background: rgba(12, 9, 22, 0.9);
  border: 1px solid var(--stroke);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.6);
  pointer-events: none;
  opacity: 0;
  transform: translate(-50%, -118%) scale(0.96);
  transition: opacity var(--t-fast) ease, transform var(--t-med) var(--ease-soft);
}

.tip.is-on {
  opacity: 1;
  transform: translate(-50%, -128%) scale(1);
}

.tip__name {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  font-weight: 700;
}

.tip__rows {
  margin-top: 8px;
  display: grid;
  gap: 5px;
  font-size: 0.72rem;
  color: var(--text-1);
}

.tip__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.tip__row b {
  color: var(--text-0);
  font-variant-numeric: tabular-nums;
}

/* ======================= v3: SVG-флаги, вордмарк в футере, FAQ ======================= */
.flag-ic {
  display: block;
  flex: 0 0 auto;
  width: 20px;
  height: 14px;
  border-radius: 3px;
  overflow: hidden;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.16), 0 2px 6px rgba(0, 0, 0, 0.4);
}
.flag,
.srv-flag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.region__flag {
  display: grid;
  place-items: center;
}
.region__flag .flag-ic {
  width: 26px;
  height: 18px;
  border-radius: 4px;
}
.srv-flag .flag-ic {
  width: 22px;
  height: 15px;
}
.tip__name .flag-ic,
.app-loc .flag .flag-ic {
  width: 18px;
  height: 12px;
}
.tip__name {
  display: flex;
  align-items: center;
  gap: 7px;
}

/* Имя бренда крупным текстом на фоне футера */
.footer {
  position: relative;
  overflow: hidden;
}
.footer__mark {
  position: absolute;
  left: 50%;
  bottom: -0.18em;
  z-index: 0;
  transform: translateX(-50%);
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(86px, 17vw, 268px);
  line-height: 0.8;
  letter-spacing: -0.045em;
  white-space: nowrap;
  pointer-events: none;
  user-select: none;
  background: linear-gradient(180deg, rgba(196, 181, 253, 0.17), rgba(139, 92, 246, 0.06) 48%, rgba(139, 92, 246, 0) 92%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.footer__grid,
.footer__bottom {
  position: relative;
  z-index: 1;
}
@media (max-width: 640px) {
  .footer__mark {
    font-size: clamp(62px, 27vw, 148px);
  }
}

/* FAQ: плавное раскрытие и поворот шеврона */
.faq__q {
  cursor: pointer;
  user-select: none;
}
.faq__a {
  overflow: hidden;
  padding: 0;
  transition: height 0.34s var(--ease-soft), opacity 0.26s ease;
}
.faq__inner {
  padding: 0 20px 18px;
  color: var(--text-1);
  line-height: 1.72;
}
.faq__item:not([open]) .faq__a {
  height: 0;
  opacity: 0;
}
.faq__q::after {
  transition: transform 0.34s var(--ease-soft);
}
@media (prefers-reduced-motion: reduce) {
  .faq__a {
    transition: none;
  }
}

/* Сравнение тарифов: заголовки групп */
.compare__group {
  display: inline-block;
  font-size: 11.5px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--violet-light);
}