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

:root {
  --header-h: 112px;
  --menu-h: 58px;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  font-family: Arial, sans-serif;
  color: var(--text);
  background:
    linear-gradient(
      180deg,
      var(--bg-top) 0%,
      var(--body-mid-a) 18%,
      var(--bg-mid) 46%,
      var(--body-mid-b) 72%,
      var(--bg-bottom) 100%
    );
  overflow-x: hidden;
  position: relative;
}

.scene {
  position: fixed;
  inset: 0;
  z-index: -10;
  overflow: hidden;
  pointer-events: none;
  background:
    linear-gradient(
      180deg,
      var(--body-highlight-top) 0%,
      var(--body-highlight-mid) 22%,
      var(--transparent) 45%,
      var(--body-shadow-mid) 78%,
      var(--body-shadow-bottom) 100%
    );
}

.scene::before,
.scene::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.scene::before {
  background:
    linear-gradient(
      90deg,
      var(--scene-line-left) 0%,
      var(--transparent) 18%,
      var(--transparent) 82%,
      var(--scene-line-right) 100%
    );
  opacity: 0.65;
}

.scene::after {
  background:
    radial-gradient(circle at center, var(--transparent) 62%, var(--scene-vignette) 100%);
  opacity: 0.65;
}

.glow-a,
.glow-b,
.glow-c {
  position: absolute;
  border-radius: 50%;
  filter: blur(22px);
  opacity: 0.18;
}

.glow-a {
  width: 34vw;
  height: 34vw;
  min-width: 260px;
  min-height: 260px;
  left: -10vw;
  top: 8vh;
  background: radial-gradient(circle, var(--glow-a-color), var(--transparent) 72%);
  animation: floatA 20s ease-in-out infinite alternate;
}

.glow-b {
  width: 30vw;
  height: 30vw;
  min-width: 220px;
  min-height: 220px;
  right: -8vw;
  top: 18vh;
  background: radial-gradient(circle, var(--glow-b-color), var(--transparent) 72%);
  animation: floatB 22s ease-in-out infinite alternate;
}

.glow-c {
  width: 58vw;
  height: 24vw;
  min-width: 420px;
  min-height: 180px;
  left: 50%;
  bottom: -8vh;
  transform: translateX(-50%);
  background: radial-gradient(circle, var(--glow-c-color), var(--transparent) 74%);
  animation: pulseGlow 16s ease-in-out infinite;
}

@keyframes floatA {
  from { transform: translate(0, 0); }
  to   { transform: translate(4vw, -2vh); }
}

@keyframes floatB {
  from { transform: translate(0, 0); }
  to   { transform: translate(-4vw, 2vh); }
}

@keyframes pulseGlow {
  0%, 100% { transform: translateX(-50%) scale(1); opacity: 0.16; }
  50%      { transform: translateX(-50%) scale(1.05); opacity: 0.24; }
}

.top-stack {
  position: sticky;
  top: calc(-1 * var(--header-h));
  z-index: 1000;
}

.site-header {
  position: relative;
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: flex-start;
  padding: 20px 24px;
  color: var(--text);
  background: linear-gradient(
    180deg,
    var(--header-top) 0%,
    var(--header-mid-top) 30%,
    var(--header-mid-bottom) 70%,
    var(--header-bottom) 100%
  );
  border-bottom: 1px solid var(--header-border);
  box-shadow: 0 10px 28px var(--shadow-strong);
  overflow: hidden;
  isolation: isolate;
}

.header-sweep {
  position: absolute;
  top: -45%;
  left: -80vw;
  width: 42vw;
  height: 190%;
  min-width: 480px;
  max-width: 1100px;
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(
      ellipse at center,
      var(--sweep-core) 0%,
      var(--sweep-mid) 34%,
      var(--sweep-edge) 58%,
      var(--transparent) 78%
    );
  filter: blur(30px);
  animation: sweepBandOneWay 12s linear infinite;
}

.header-sweep.sweep-2 {
  animation-delay: 4s;
  opacity: 0.9;
}

.header-sweep.sweep-3 {
  animation-delay: 8s;
  opacity: 0.82;
}

.site-header::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    linear-gradient(
      115deg,
      var(--transparent) 0%,
      var(--header-sheen-a) 24%,
      var(--header-sheen-b) 50%,
      var(--header-sheen-a) 76%,
      var(--transparent) 100%
    );
  opacity: 0.28;
}

@keyframes sweepBandOneWay {
  0% {
    transform: translateX(0);
    opacity: 0;
  }
  6% {
    opacity: 1;
  }
  94% {
    opacity: 1;
  }
  100% {
    transform: translateX(300vw);
    opacity: 0;
  }
}

.brand-wrap {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 16px;
}

.brand-logo {
  width: 72px;
  height: 72px;
  min-width: 72px;
  border-radius: 14px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--brand-logo-bg);
  border: 1px solid var(--brand-logo-border);
  box-shadow:
    0 0 0 var(--transparent),
    inset 0 1px 0 var(--white-soft-top);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.brand-logo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.brand-block {
  position: relative;
  z-index: 2;
}

.brand-block small {
  display: block;
  margin-top: 8px;
  font-size: 0.88rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--brand-subtext);
}

.brand-block h1 {
  font-size: clamp(2rem, 5vw, 3.4rem);
  line-height: 0.9;
  letter-spacing: -0.04em;
  color: var(--text);
  font-weight: 700;
}

.menu-strip {
  height: var(--menu-h);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 10px 16px;
  background: var(--menu-strip-bg);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  border-bottom: 1px solid var(--menu-strip-border);
  box-shadow: 0 10px 24px var(--shadow-soft);
}

.menu-link {
  width: 46px;
  height: 46px;
  border-radius: 14px;
  border: 1px solid var(--menu-purple-border);
  background: var(--menu-purple);
  color: var(--text);
  text-decoration: none;
  display: flex;
  align-items: center;
  justify-content: center;
  transition:
    background 0.2s ease,
    border-color 0.2s ease,
    box-shadow 0.2s ease,
    transform 0.12s ease;
  box-shadow:
    0 0 0 var(--transparent),
    inset 0 1px 0 var(--white-soft-top);
}

.menu-link:hover,
.menu-link:focus-visible {
  background: var(--menu-purple-hover);
  border-color: var(--menu-hover-border);
  box-shadow:
    0 0 12px var(--menu-glow),
    0 0 26px var(--menu-hover-glow-2),
    inset 0 1px 0 var(--menu-hover-inset);
  outline: none;
}

.menu-link:active {
  transform: scale(0.92);
}

.menu-link.clicking {
  animation: menuClickPop 0.24s ease;
}

@keyframes menuClickPop {
  0% {
    transform: scale(1);
  }
  45% {
    transform: scale(0.9);
  }
  100% {
    transform: scale(1);
  }
}

.menu-link svg {
  width: 22px;
  height: 22px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

main {
  width: min(3000px, 100%);
  margin: 0 auto;
  padding: 16px 16px 80px;
  position: relative;
  z-index: 1;
}

.hero-space {
  height: 14px;
}

.single-box {
  max-width: 2500px;
  margin: 0 auto;
  padding: 32px;
  border-radius: 24px;
  background:
    linear-gradient(
      180deg,
      var(--panel) 0%,
      var(--item-bg) 100%
    );
  border: 1px solid var(--panel-border);
  box-shadow:
    0 20px 50px var(--shadow-strong),
    inset 0 1px 0 var(--white-soft-top);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  position: relative;
  overflow: hidden;
}

.single-box::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at top right, var(--single-box-top-right), var(--transparent) 28%),
    radial-gradient(circle at bottom left, var(--single-box-bottom-left), var(--transparent) 32%);
  pointer-events: none;
}

.single-box > * {
  position: relative;
  z-index: 1;
}

.single-box h2 {
  margin-bottom: 12px;
  font-size: clamp(1.45rem, 2.5vw, 2rem);
  letter-spacing: 0.01em;
}

.single-box p {
  color: var(--muted);
  line-height: 1.75;
  max-width: 760px;
  margin-bottom: 24px;
}

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

.service-row {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 18px;
  border-radius: 18px;
  background: var(--item-bg);
  border: 1px solid var(--item-border);
  box-shadow: inset 0 1px 0 var(--service-row-inset);
}

.service-icon {
  width: 54px;
  height: 54px;
  min-width: 54px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--icon-bg);
  border: 1px solid var(--icon-border);
  box-shadow:
    inset 0 1px 0 var(--white-soft-top),
    0 8px 20px var(--service-icon-shadow);
}

.service-icon svg {
  width: 26px;
  height: 26px;
  stroke: var(--text);
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.service-text h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 4px;
  color: var(--text);
}

.service-text p {
  margin: 0;
  font-size: 0.93rem;
  line-height: 1.55;
  color: var(--service-text);
  max-width: none;
}

@media (max-width: 700px) {
  :root {
    --header-h: 90px;
    --menu-h: 54px;
  }

  .site-header {
    padding: 16px 14px;
  }

  .brand-wrap {
    gap: 12px;
  }

  .brand-logo {
    width: 48px;
    height: 48px;
    min-width: 48px;
    border-radius: 14px;
  }

  .brand-block h1 {
    font-size: 2rem;
  }

  .brand-block small {
    font-size: 0.76rem;
    letter-spacing: 0.1em;
  }

  .menu-strip {
    gap: 10px;
  }

  main {
    padding: 12px 12px 64px;
  }

  .hero-space {
    height: 10px;
  }

  .single-box {
    max-width: 100%;
    padding: 22px;
    border-radius: 20px;
  }

  .service-row {
    align-items: flex-start;
    padding: 14px;
  }

  .service-icon {
    width: 48px;
    height: 48px;
    min-width: 48px;
    border-radius: 14px;
  }

  .service-icon svg {
    width: 22px;
    height: 22px;
  }

  .header-sweep {
    width: 68vw;
    min-width: 320px;
    left: -95vw;
  }

  @keyframes sweepBandOneWay {
    0% {
      transform: translateX(0);
      opacity: 0;
    }
    6% {
      opacity: 1;
    }
    94% {
      opacity: 1;
    }
    100% {
      transform: translateX(340vw);
      opacity: 0;
    }
  }
}


.auth-box {
  max-width: 660px;
}

.auth-box-centered {
  padding: 0;
  overflow: hidden;
}

.auth-box-centered::before {
  background:
    radial-gradient(circle at top right, var(--single-box-top-right), var(--transparent) 24%),
    radial-gradient(circle at bottom left, var(--single-box-bottom-left), var(--transparent) 30%);
  opacity: 0.7;
}

.auth-box-inner {
  position: relative;
  z-index: 1;
  padding: 20px 30px;
}

.auth-box h2 {
  text-align: center;
  margin-bottom: 12px;
  font-size: clamp(1.7rem, 2.6vw, 2.2rem);
  letter-spacing: 0.01em;
}

.auth-box > p,
.auth-box-inner > p {
  text-align: center;
  max-width: 560px;
  margin: 0 auto 28px;
  font-size: 1rem;
  line-height: 1.8;
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 22px;
  margin-top: 10px;
}

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

.auth-field label {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
}

.auth-field input {
  width: 100%;
  min-height: 60px;
  padding: 16px 18px;
  border-radius: 18px;
  border: 1px solid var(--item-border);
  background:
    linear-gradient(
      180deg,
      var(--panel) 0%,
      var(--item-bg) 100%
    );
  color: var(--text);
  font: inherit;
  font-size: 1rem;
  outline: none;
  box-shadow:
    inset 0 1px 0 var(--service-row-inset),
    0 10px 24px var(--shadow-soft);
  transition:
    border-color 0.2s ease,
    box-shadow 0.2s ease,
    background 0.2s ease;
}

.auth-field input::placeholder {
  color: var(--muted);
}

.auth-field input:focus {
  border-color: var(--menu-hover-border);
  box-shadow:
    0 0 0 1px var(--menu-hover-border),
    0 0 22px var(--menu-glow),
    inset 0 1px 0 var(--service-row-inset),
    0 10px 24px var(--shadow-soft);
}

.auth-actions {
  display: flex;
  justify-content: flex-start;
  margin-top: 8px;
}

.auth-actions-centered {
  justify-content: center;
}

.auth-button {
  min-width: 220px;
  min-height: 58px;
  padding: 0 28px;
  border: 1px solid var(--menu-purple-border);
  border-radius: 18px;
  background:
    linear-gradient(
      180deg,
      var(--menu-purple-hover) 0%,
      var(--menu-purple) 100%
    );
  color: var(--text);
  font: inherit;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition:
    background 0.2s ease,
    border-color 0.2s ease,
    box-shadow 0.2s ease,
    transform 0.12s ease;
  box-shadow:
    0 0 0 var(--transparent),
    inset 0 1px 0 var(--menu-hover-inset);
}

.auth-button:hover,
.auth-button:focus-visible {
  border-color: var(--menu-hover-border);
  box-shadow:
    0 0 20px var(--menu-glow),
    0 0 42px var(--menu-hover-glow-2),
    inset 0 1px 0 var(--menu-hover-inset);
  outline: none;
}

.auth-button:active {
  transform: scale(0.97);
}

.auth-message {
  margin: 0 0 24px;
  padding: 16px 18px;
  border-radius: 18px;
  border: 1px solid var(--item-border);
  background: var(--item-bg);
  line-height: 1.6;
}

.auth-message-error {
  border-color: rgba(255, 120, 120, 0.28);
  background: rgba(255, 80, 80, 0.08);
}

.auth-message-success {
  border-color: rgba(120, 255, 170, 0.28);
  background: rgba(70, 200, 120, 0.08);
}

.auth-links {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  margin-top: 26px;
}

.auth-links-centered {
  justify-content: center;
}

.auth-links a {
  color: var(--text);
  text-decoration: none;
  opacity: 0.82;
  transition: opacity 0.2s ease;
}

.auth-links a:hover,
.auth-links a:focus-visible {
  opacity: 1;
}

@media (max-width: 700px) {
  .auth-box {
    max-width: 100%;
  }

  .auth-box-centered {
    margin-top: 20px;
    margin-bottom: 28px;
  }

  .auth-box-inner {
    padding: 24px 20px;
  }

  .auth-field input {
    min-height: 54px;
    border-radius: 16px;
  }

  .auth-button {
    width: 100%;
    min-width: 0;
    min-height: 54px;
    border-radius: 16px;
  }

  .auth-links {
    flex-direction: column;
    gap: 12px;
    align-items: center;
  }
}
.account-details {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 24px;
}

.account-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 18px 20px;
  border-radius: 18px;
  background: var(--item-bg);
  border: 1px solid var(--item-border);
  box-shadow: inset 0 1px 0 var(--service-row-inset);
}

.account-label {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--muted);
}

.account-value {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  text-align: right;
  word-break: break-word;
}

.account-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 26px;
}

.account-logout-form {
  margin: 0;
}

.account-button-secondary,
.account-button-danger {
  min-width: 180px;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.account-button-secondary {
  background:
    linear-gradient(
      180deg,
      var(--menu-purple-hover) 0%,
      var(--menu-purple) 100%
    );
}

.account-button-danger {
  background:
    linear-gradient(
      180deg,
      rgba(180, 70, 90, 0.95) 0%,
      rgba(140, 42, 60, 0.95) 100%
    );
  border-color: rgba(255,255,255,0.18);
}

.account-button-danger:hover,
.account-button-danger:focus-visible {
  box-shadow:
    0 0 20px rgba(255, 90, 120, 0.25),
    0 0 42px rgba(255, 90, 120, 0.18),
    inset 0 1px 0 var(--menu-hover-inset);
}

@media (max-width: 700px) {
  .account-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .account-value {
    text-align: left;
  }

  .account-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .account-button-secondary,
  .account-button-danger,
  .account-logout-form {
    width: 100%;
  }
}