/* =========================================================
   Вова и Даша — общая дизайн-система
   Нежнозелёный (мята) + нежноголубой (небо), тёплый акцент
   ========================================================= */

:root {
  --bg:          #F3FAF6;
  --bg-2:        #EBF5FA;
  --bg-3:        #F7FBF9;
  --card:        #FFFFFF;
  --card-veil:   rgba(255, 255, 255, 0.74);
  --ink:         #16302A;
  --ink-soft:    #2C4A42;
  --muted:       #6B8780;
  --line:        #DCEDE5;
  --line-strong: #C6E1D6;

  --mint:        #43A385;
  --mint-deep:   #2C7F65;
  --mint-bright: #5FC3A2;
  --mint-soft:   #DCF2E8;
  --mint-veil:   rgba(95, 195, 162, 0.16);

  --sky:         #4E9FBE;
  --sky-deep:    #2F7B99;
  --sky-bright:  #79C4DD;
  --sky-soft:    #DBEDF5;
  --sky-veil:    rgba(121, 196, 221, 0.16);

  --warm:        #C4744C;
  --warm-soft:   #F8E8DE;

  --on-accent:   #FFFFFF;

  --aurora-1:    rgba(95, 195, 162, 0.30);
  --aurora-2:    rgba(121, 196, 221, 0.28);
  --aurora-3:    rgba(95, 195, 162, 0.18);

  --shadow-sm:   0 1px 2px rgba(22, 58, 48, 0.04), 0 2px 8px rgba(22, 58, 48, 0.04);
  --shadow-md:   0 2px 6px rgba(22, 58, 48, 0.05), 0 12px 28px rgba(22, 58, 48, 0.07);
  --shadow-lg:   0 8px 20px rgba(22, 58, 48, 0.07), 0 28px 60px rgba(22, 58, 48, 0.10);
  --shadow-glow: 0 6px 24px rgba(67, 163, 133, 0.28);

  --radius:      18px;
  --radius-sm:   12px;
  --radius-xs:   9px;

  --ease:        cubic-bezier(0.22, 0.68, 0.36, 1);
  --ease-out:    cubic-bezier(0.16, 1, 0.3, 1);
  --spring:      cubic-bezier(0.34, 1.56, 0.64, 1);

  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg:          #0C1614;
    --bg-2:        #0D1A1F;
    --bg-3:        #101E1A;
    --card:        #152220;
    --card-veil:   rgba(21, 34, 32, 0.76);
    --ink:         #E8F2ED;
    --ink-soft:    #CFE2DA;
    --muted:       #8CA79E;
    --line:        #22332F;
    --line-strong: #2E443E;

    --mint:        #63C9A7;
    --mint-deep:   #8BE0C2;
    --mint-bright: #7FD9B9;
    --mint-soft:   #16302A;
    --mint-veil:   rgba(99, 201, 167, 0.14);

    --sky:         #6FBBD6;
    --sky-deep:    #96D3E8;
    --sky-bright:  #8ACBE3;
    --sky-soft:    #14272F;
    --sky-veil:    rgba(111, 187, 214, 0.14);

    --warm:        #DE9A72;
    --warm-soft:   #32231B;

    --on-accent:   #08211B;

    --aurora-1:    rgba(99, 201, 167, 0.13);
    --aurora-2:    rgba(111, 187, 214, 0.13);
    --aurora-3:    rgba(99, 201, 167, 0.08);

    --shadow-sm:   0 1px 2px rgba(0, 0, 0, 0.30), 0 2px 8px rgba(0, 0, 0, 0.22);
    --shadow-md:   0 2px 6px rgba(0, 0, 0, 0.32), 0 12px 28px rgba(0, 0, 0, 0.34);
    --shadow-lg:   0 8px 20px rgba(0, 0, 0, 0.36), 0 28px 60px rgba(0, 0, 0, 0.44);
    --shadow-glow: 0 6px 24px rgba(99, 201, 167, 0.24);
  }
}

:root[data-theme="dark"] {
  --bg:          #0C1614;
  --bg-2:        #0D1A1F;
  --bg-3:        #101E1A;
  --card:        #152220;
  --card-veil:   rgba(21, 34, 32, 0.76);
  --ink:         #E8F2ED;
  --ink-soft:    #CFE2DA;
  --muted:       #8CA79E;
  --line:        #22332F;
  --line-strong: #2E443E;

  --mint:        #63C9A7;
  --mint-deep:   #8BE0C2;
  --mint-bright: #7FD9B9;
  --mint-soft:   #16302A;
  --mint-veil:   rgba(99, 201, 167, 0.14);

  --sky:         #6FBBD6;
  --sky-deep:    #96D3E8;
  --sky-bright:  #8ACBE3;
  --sky-soft:    #14272F;
  --sky-veil:    rgba(111, 187, 214, 0.14);

  --warm:        #DE9A72;
  --warm-soft:   #32231B;

  --on-accent:   #08211B;

  --aurora-1:    rgba(99, 201, 167, 0.13);
  --aurora-2:    rgba(111, 187, 214, 0.13);
  --aurora-3:    rgba(99, 201, 167, 0.08);

  --shadow-sm:   0 1px 2px rgba(0, 0, 0, 0.30), 0 2px 8px rgba(0, 0, 0, 0.22);
  --shadow-md:   0 2px 6px rgba(0, 0, 0, 0.32), 0 12px 28px rgba(0, 0, 0, 0.34);
  --shadow-lg:   0 8px 20px rgba(0, 0, 0, 0.36), 0 28px 60px rgba(0, 0, 0, 0.44);
  --shadow-glow: 0 6px 24px rgba(99, 201, 167, 0.24);
}

/* ---------------------------------------------------------- base */

*, *::before, *::after { box-sizing: border-box; }
* { min-width: 0; }

/* сильнее, чем .field { display: flex } — иначе атрибут hidden не работает */
[hidden] { display: none !important; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--ink);
  font-family: 'Golos Text', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  font-size: 15px;
  line-height: 1.5;
  /* clip, не hidden: hidden сделал бы body скролл-контейнером и сломал position: sticky */
  overflow-x: clip;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.serif {
  font-family: 'Playfair Display', 'Golos Text', Georgia, serif;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.mono {
  font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}

button, input, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }

:focus-visible {
  outline: 2px solid var(--mint);
  outline-offset: 3px;
  border-radius: 6px;
}

::selection { background: var(--mint-veil); }

/* ---------------------------------------------------------- aurora backdrop */

/* Мягкое сияние делается радиальными градиентами, а не размытыми блоками:
   filter: blur() на элементах в пол-экрана — самый дорогой способ получить
   ровно ту же картинку, и на слабых телефонах он режет прокрутку. */
.aurora {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(62% 52% at 10% 4%,  var(--aurora-1) 0%, transparent 64%),
    radial-gradient(58% 48% at 94% 10%, var(--aurora-2) 0%, transparent 64%),
    radial-gradient(54% 44% at 62% 98%, var(--aurora-3) 0%, transparent 66%),
    var(--bg);
}

/* ---------------------------------------------------------- shared atoms */

.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: none;
  border-radius: var(--radius-sm);
  padding: 12px 22px;
  font-weight: 500;
  font-size: 15px;
  letter-spacing: 0.01em;
  background: linear-gradient(135deg, var(--mint) 0%, var(--sky) 130%);
  color: var(--on-accent);
  box-shadow: var(--shadow-glow);
  transition: transform 0.22s var(--spring), box-shadow 0.22s var(--ease), filter 0.22s var(--ease);
  overflow: hidden;
}

.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent 20%, rgba(255,255,255,0.34) 50%, transparent 80%);
  transform: translateX(-120%);
  transition: transform 0.6s var(--ease);
}

.btn:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg), var(--shadow-glow); }
.btn:hover::after { transform: translateX(120%); }
.btn:active { transform: translateY(0) scale(0.985); }
.btn:disabled { opacity: 0.55; cursor: default; transform: none; box-shadow: none; filter: saturate(0.6); }
.btn:disabled::after { display: none; }

.btn-ghost {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--line);
  box-shadow: none;
  padding: 9px 16px;
  font-size: 13.5px;
}
.btn-ghost::after { display: none; }
.btn-ghost:hover {
  color: var(--mint-deep);
  border-color: var(--mint);
  background: var(--mint-soft);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.field {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.field label {
  font-size: 12.5px;
  font-weight: 500;
  color: var(--muted);
  letter-spacing: 0.03em;
}

.input {
  width: 100%;
  background: var(--card);
  border: 1.5px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  color: var(--ink);
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease), background 0.2s var(--ease);
}

.input::placeholder { color: var(--muted); opacity: 0.62; }

.input:hover { border-color: var(--line-strong); }

.input:focus {
  outline: none;
  border-color: var(--mint);
  box-shadow: 0 0 0 4px var(--mint-veil);
}

.hint { font-size: 12.5px; color: var(--muted); }

.error-msg {
  font-size: 13px;
  color: var(--warm);
  background: var(--warm-soft);
  border-radius: var(--radius-xs);
  padding: 9px 12px;
  display: none;
}
.error-msg.show { display: block; animation: shake 0.36s var(--ease); }

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  22% { transform: translateX(-5px); }
  46% { transform: translateX(4px); }
  72% { transform: translateX(-2px); }
}

/* ---------------------------------------------------------- monogram mark */

.mark {
  width: 46px;
  height: 46px;
  flex: none;
  display: block;
}
.mark .leaf-a { fill: var(--mint); }
.mark .leaf-b { fill: var(--sky); }
.mark .stem { stroke: var(--mint-deep); }

/* ---------------------------------------------------------- entrance */

@keyframes rise {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fade {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes pop {
  0%   { transform: scale(0.86); opacity: 0; }
  60%  { transform: scale(1.04); opacity: 1; }
  100% { transform: scale(1); opacity: 1; }
}

.rise { animation: rise 0.6s var(--ease-out) both; }

/* ---------------------------------------------------------- reduced motion */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}