/* Core design system for public pages, booking flow and client cabinet. */

:root {
  --bg: #fff0ea;
  --surface: #ffffff;
  --surface-2: #fbf2ed;
  --white: #fff;
  --cream: #ebd6cf;
  --cream-dark: #f5ebe0;
  --peach: #fff0ea;
  --peach-deep: #fbe2d5;
  --brown: #3d3229;
  --brown-deep: #2a221c;
  --brown-light: #5c4d3c;
  --brown-muted: rgba(92, 77, 60, 0.58);
  --brown-faint: rgba(61, 50, 41, 0.08);
  --hairline: rgba(61, 50, 41, 0.08);
  --accent: #b96f50;
  --success: #8d9c6e;
  --alert: #c0392b;
  --vk-start: #4680c2;
  --vk-end: #5680c5;

  --surface-glass: rgba(255, 255, 255, 0.92);
  --surface-glass-strong: rgba(255, 255, 255, 0.95);
  --surface-glass-solid: rgba(255, 255, 255, 0.94);
  --surface-border: rgba(255, 255, 255, 0.7);
  --surface-border-soft: rgba(255, 255, 255, 0.6);
  --page-chrome: rgba(255, 240, 234, 0.88);
  --page-chrome-strong: rgba(255, 240, 234, 0.92);
  --overlay: rgba(61, 50, 41, 0.42);
  --overlay-soft: rgba(61, 50, 41, 0.38);
  --shadow-brown-soft: rgba(61, 50, 41, 0.04);
  --shadow-brown-medium: rgba(61, 50, 41, 0.06);
  --shadow-brown-ring: rgba(61, 50, 41, .18);
  --shadow-brown-ring-start: rgba(61, 50, 41, .35);
  --shadow-clear: rgba(61, 50, 41, 0);
  --white-ghost: rgba(255, 255, 255, 0.08);
  --white-line: rgba(255, 255, 255, 0.14);
  --white-soft: rgba(255, 255, 255, 0.16);
  --white-muted: rgba(255, 255, 255, 0.66);
  --white-muted-alt: rgba(255, 255, 255, 0.76);
  --white-text: rgba(255, 255, 255, 0.82);
  --white-strong: rgba(255, 255, 255, 0.92);
  --white-subtle: rgba(255, 255, 255, 0.45);
  --white-ring-start: rgba(255, 255, 255, .55);
  --white-ring: rgba(255, 255, 255, .18);
  --white-clear: rgba(255, 255, 255, 0);
  --white-panel: rgba(255, 255, 255, 0.07);
  --alert-bg: rgba(192, 57, 43, 0.08);
  --alert-bg-soft: rgba(192, 57, 43, 0.06);
  --alert-border: rgba(192, 57, 43, 0.1);
  --alert-line: rgba(192, 57, 43, .5);
  --success-glow: rgba(141, 156, 110, 0.12);

  --font-display: "Playfair Display", "Cormorant Garamond", serif;
  --font-editorial: "Cormorant Garamond", "Playfair Display", serif;
  --font-body: "Nunito Sans", system-ui, sans-serif;

  --radius-sm: 12px;
  --radius-md: 18px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --radius-pill: 999px;

  --shadow-sm: 0 1px 2px var(--shadow-brown-soft), 0 1px 1px rgba(61, 50, 41, 0.02);
  --shadow-md: 0 4px 16px var(--shadow-brown-medium), 0 1px 3px var(--shadow-brown-soft);
  --shadow-lg: 0 12px 40px rgba(61, 50, 41, 0.10), 0 2px 8px rgba(61, 50, 41, 0.05);
  --shadow-xl: 0 24px 60px rgba(61, 50, 41, 0.16);

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-7: 32px;
  --space-8: 40px;
  --space-9: 56px;
  --space-10: 72px;

  --page-x: 16px;
  --container: 1180px;
  --content: 1180px;
  --form: 760px;
  --section-y: 22px;
  --section-y-lg: 22px;
  --panel-pad: 24px;
  --panel-pad-lg: 48px;
  --card-pad: 18px;
  --stack-gap: 16px;
  --grid-gap: 16px;
  --tabbar-h: 76px;

  --text-2xs: 11px;
  --text-xs: 12px;
  --text-sm: 13px;
  --text-sm-plus: 14px;
  --text-base: 15px;
  --text-logo: 16px;
  --text-md: 18px;
  --text-lg: 20px;
  --text-xl: 22px;
  --text-2xl: 24px;
  --text-3xl: 28px;
  --text-4xl: 32px;

  --control-xs: 22px;
  --control-sm: 28px;
  --control-md: 40px;
  --control-lg: 52px;
  --logo-size: 36px;
  --social-size: 36px;
  --line-thin: 1px;
  --line-medium: 2px;
  --indicator-height: 3px;
  --avatar-sm: 48px;
  --avatar-md: 80px;
  --icon-gap: 6px;
  --field-padding: 13px 14px;
  --slot-padding: 13px 10px;
  --chip-padding: 6px 11px;
}

@media (min-width: 720px) {
  :root {
    --page-x: 24px;
    --panel-pad: 32px;
    --grid-gap: 20px;
  }
}

@media (min-width: 1024px) {
  :root {
    --page-x: 48px;
    --section-y: var(--section-y-lg);
    --panel-pad: var(--panel-pad-lg);
    --grid-gap: 24px;
  }
}

* {
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  min-height: 100vh;
  overflow-x: hidden;
  background: var(--bg);
  color: var(--brown);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

button,
input,
textarea,
select {
  font: inherit;
  color: inherit;
}

button {
  padding: 0;
  border: 0;
  background: none;
  cursor: pointer;
}

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

.grain-overlay::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  opacity: 0.03;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.t-display {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.05;
}

.t-editorial {
  font-family: var(--font-editorial);
  font-style: italic;
  font-weight: 500;
  line-height: 1.1;
}

.t-eyebrow {
  margin: 0 0 var(--space-3);
  color: var(--brown-light);
  font-size: var(--text-2xs);
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-height: 44px;
  padding: var(--field-padding);
  overflow: hidden;
  border-radius: var(--radius-pill);
  font-size: var(--text-sm-plus);
  font-weight: 600;
  line-height: 1;
  white-space: nowrap;
  transition: transform .25s var(--ease-out), box-shadow .25s var(--ease-out), background .25s var(--ease-out), color .25s var(--ease-out);
}

.btn-primary {
  background: var(--brown);
  color: var(--white);
  box-shadow: 0 4px 18px var(--shadow-brown-ring);
}

.btn-primary:hover,
.btn-light:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-primary::before,
.btn-light::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(110deg, transparent 30%, var(--white-soft) 50%, transparent 70%);
  transform: translateX(-130%);
}

.btn-primary:hover::before,
.btn-light:hover::before {
  animation: btnShine .9s var(--ease-out) forwards;
}

@keyframes btnShine {
  to { transform: translateX(130%); }
}

.btn-ghost {
  border: 1px solid var(--brown-faint);
  color: var(--brown);
}

.btn-ghost:hover {
  background: var(--surface);
}

.btn-light {
  background: var(--white);
  color: var(--brown);
  box-shadow: var(--shadow-sm);
}

.btn-block {
  width: 100%;
}

.btn-sm {
  min-height: 36px;
  padding: 9px var(--space-4);
  font-size: var(--text-sm);
}

.btn-lg {
  min-height: 52px;
  padding: var(--space-4) var(--control-sm);
  font-size: var(--text-base);
}

.card,
.card-glass {
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
}

.card {
  background: var(--surface);
  padding: var(--panel-pad);
}

.card-glass {
  border: 1px solid var(--surface-border-soft);
  background: var(--surface-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: var(--icon-gap);
  padding: var(--chip-padding);
  border-radius: var(--radius-pill);
  background: var(--cream);
  color: var(--brown);
  font-size: var(--text-xs);
  font-weight: 600;
}

.chip-ghost {
  border: 1px solid var(--brown-faint);
  background: transparent;
  color: var(--brown-light);
}

.chip-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

.chip-dot-blink {
  animation: dotBlink 1.6s var(--ease-in-out) infinite;
}

@keyframes dotBlink {
  0%, 100% { background: var(--success); box-shadow: 0 0 0 0 rgba(76, 175, 80, 0); }
  50% { background: #34c759; box-shadow: 0 0 0 5px rgba(52, 199, 89, 0.22); }
}

.avatar-grad {
  background: conic-gradient(from 220deg, #d9b8a7, var(--accent), #d9b8a7);
}

.underline-grow {
  position: relative;
}

.underline-grow::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -3px;
  width: 100%;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .35s var(--ease-out);
}

.underline-grow:hover::after {
  transform: scaleX(1);
}

.acc-body {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows .45s var(--ease-out);
}

.acc-body > div {
  overflow: hidden;
}

.acc-body.open {
  grid-template-rows: 1fr;
}

.acc-chev {
  transition: transform .3s var(--ease-out);
}

.acc-chev.open {
  transform: rotate(180deg);
}

.surface-panel {
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-xl);
  background: var(--surface);
  box-shadow: 0 1px 0 var(--hairline), 0 18px 40px var(--shadow-brown-soft);
}

.surface-card {
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
}

.reveal,
.stagger > * {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .8s var(--ease-out), transform .8s var(--ease-out);
}

.reveal.visible,
.stagger.visible > * {
  opacity: 1;
  transform: none;
}

.reveal.d-1 { transition-delay: .08s; }
.reveal.d-2 { transition-delay: .16s; }
.reveal.d-3 { transition-delay: .24s; }
.reveal.d-4 { transition-delay: .32s; }

.stagger > * {
  transform: translateY(20px);
  transition: opacity .6s var(--ease-out), transform .6s var(--ease-out), box-shadow .35s var(--ease-out);
}

.stagger.visible > *:nth-child(1) { transition-delay: .05s; }
.stagger.visible > *:nth-child(2) { transition-delay: .12s; }
.stagger.visible > *:nth-child(3) { transition-delay: .19s; }
.stagger.visible > *:nth-child(4) { transition-delay: .26s; }
.stagger.visible > *:nth-child(5) { transition-delay: .33s; }
.stagger.visible > *:nth-child(6) { transition-delay: .40s; }
.stagger.visible > *:nth-child(7) { transition-delay: .47s; }
.stagger.visible > *:nth-child(8) { transition-delay: .54s; }

.float-y {
  animation: floatY 8s var(--ease-in-out) infinite;
  will-change: transform;
}

.float-y-slow {
  animation: floatY 12s var(--ease-in-out) infinite;
}

@keyframes floatY {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.shimmer-text {
  background: linear-gradient(100deg, var(--brown) 30%, var(--brown-light) 45%, var(--accent) 50%, var(--brown-light) 55%, var(--brown) 70%);
  background-size: 300% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: shimmer 8s linear infinite;
}

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.ring-pulse {
  position: relative;
}

.ring-pulse::after {
  content: "";
  position: absolute;
  inset: -5px;
  border: 2px solid var(--cream);
  border-radius: 50%;
  /* импульс происходит только в первой четверти цикла; задержки по шагам
     в landing.css запускают кольца поочерёдно 1→2→3→4 и снова по кругу */
  animation: ringPulse 4s var(--ease-in-out) infinite;
}

@keyframes ringPulse {
  0% { opacity: .55; transform: scale(1); }
  20% { opacity: 0; transform: scale(1.18); }
  100% { opacity: 0; transform: scale(1.18); }
}

.badge-breath {
  animation: breath 2.6s var(--ease-in-out) infinite;
}

@keyframes breath {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.06); }
}

.lift {
  transition: transform .35s var(--ease-out), box-shadow .35s var(--ease-out);
}

.lift:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.press {
  transition: transform .2s var(--ease-out);
}

.press:active {
  transform: scale(0.97);
}

.cta-ring {
  animation: ctaRing 3.2s var(--ease-out) infinite;
}

@keyframes ctaRing {
  0% { box-shadow: 0 0 0 0 var(--shadow-brown-ring-start), 0 4px 18px var(--shadow-brown-ring); }
  70% { box-shadow: 0 0 0 18px var(--shadow-clear), 0 6px 22px var(--shadow-brown-ring); }
  100% { box-shadow: 0 0 0 18px var(--shadow-clear), 0 4px 18px var(--shadow-brown-ring); }
}

.cta-ring-light {
  animation: ctaRingLight 3.2s var(--ease-out) infinite;
}

@keyframes ctaRingLight {
  0% { box-shadow: 0 0 0 0 var(--white-ring-start), 0 4px 18px var(--white-ring); }
  70% { box-shadow: 0 0 0 18px var(--white-clear), 0 6px 22px var(--white-ring); }
  100% { box-shadow: 0 0 0 18px var(--white-clear), 0 4px 18px var(--white-ring); }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: .01ms !important;
    transition-duration: .01ms !important;
  }

  .reveal,
  .stagger > * {
    opacity: 1 !important;
    transform: none !important;
  }
}