/* ============================================================
   Forged IDs — shared design system
   Tokens + reset + primitive components used by every page.
   ============================================================ */

:root{
  color-scheme: dark;

  /* Surfaces — near-black graphite scale, not pure black */
  --bg: #050505;
  --bg-2: #0b0b0d;
  --surface: #101014;
  --surface-2: #151519;
  --surface-3: #1c1c22;
  --border: rgba(255,255,255,0.08);
  --border-strong: rgba(255,255,255,0.16);

  /* Text */
  --text: #f5f5f7;
  --text-2: #98989f;
  --text-3: #626268;

  /* Brand / accent — used sparingly: focus, progress, success, selection */
  --accent: #5b7cfa;
  --accent-2: #7c97ff;
  --accent-ink: #0b1030;
  --accent-soft: rgba(91, 124, 250, 0.13);
  --accent-soft-strong: rgba(91, 124, 250, 0.26);

  /* Semantic */
  --success: #34d399;
  --success-soft: rgba(52, 211, 153, 0.13);
  --danger: #fb7185;
  --danger-soft: rgba(251, 113, 133, 0.13);
  --warning: #f5b944;
  --warning-soft: rgba(245, 185, 68, 0.13);

  /* Radius scale */
  --r-sm: 10px;
  --r-md: 14px;
  --r-lg: 20px;
  --r-xl: 26px;
  --r-pill: 999px;

  /* Spacing scale */
  --sp-1: 4px;
  --sp-2: 8px;
  --sp-3: 12px;
  --sp-4: 16px;
  --sp-5: 20px;
  --sp-6: 24px;
  --sp-7: 32px;
  --sp-8: 40px;
  --sp-9: 48px;

  /* Type scale */
  --fs-xs: 0.78rem;
  --fs-sm: 0.875rem;
  --fs-base: 1rem;
  --fs-md: 1.0625rem;
  --fs-lg: 1.25rem;
  --fs-xl: 1.5rem;
  --fs-2xl: 1.85rem;

  /* Motion — a small, deliberate set of durations + one premium curve family */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-ambient: cubic-bezier(0.45, 0, 0.55, 1);
  --dur-touch: 150ms;   /* immediate tactile feedback */
  --dur-fast: 150ms;
  --dur-base: 260ms;    /* UI state transitions */
  --dur-slow: 420ms;    /* page/step transitions */

  /* Shadows — soft and diffused, never a hard drop */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.35);
  --shadow-md: 0 20px 48px -24px rgba(0,0,0,0.65);
  --shadow-lg: 0 10px 24px -14px rgba(0,0,0,0.5), 0 44px 90px -40px rgba(0,0,0,0.7);
  --shadow-glow: 0 0 0 1px var(--accent-soft), 0 8px 30px -8px rgba(91,124,250,0.3);

  /* Safe area */
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --safe-left: env(safe-area-inset-left, 0px);
  --safe-right: env(safe-area-inset-right, 0px);
}

@media (prefers-reduced-motion: reduce){
  :root{ --dur-fast: 1ms; --dur-base: 1ms; --dur-slow: 1ms; }
}

*, *::before, *::after{ box-sizing: border-box; }
html{ -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }

body{
  margin: 0;
  min-height: 100svh;
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  font-size: var(--fs-base);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1,h2,h3,p,figure{ margin: 0; }
button, input, select, textarea{ font-family: inherit; color: inherit; }
img{ max-width: 100%; display: block; }
a{ color: inherit; }

::selection{ background: var(--accent-soft-strong); color: var(--text); }

/* Focus ring — consistent, visible, keyboard-first */
:focus-visible{
  outline: 2px solid var(--accent-2);
  outline-offset: 2px;
  border-radius: var(--r-sm);
}

/* ---------- Ambient background ---------- */
.ambient{
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
  background: var(--bg);
}
/* Soft central spotlight — a fixed light source above the interface. */
.ambient::after{
  content:'';
  position:absolute;
  top: 0; left: 50%;
  width: min(900px, 140vw); height: 70vh;
  transform: translate(-50%, -35%);
  background: radial-gradient(ellipse at center, rgba(124,151,255,0.1) 0%, rgba(91,124,250,0.05) 35%, transparent 70%);
}
/* Faint vignette to keep focus centred. */
.ambient-vignette{
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at 50% 40%, transparent 40%, rgba(0,0,0,0.35) 100%);
}
.ambient-grain{
  position:absolute; inset:0;
  background-image: radial-gradient(rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 3px 3px;
  opacity: 0.18;
  mix-blend-mode: overlay;
}
.ambient-blob{
  position: absolute;
  width: 70vmax; height: 70vmax;
  border-radius: 50%;
  filter: blur(clamp(70px, 9vw, 170px));
  opacity: 0.4;
  will-change: transform;
}
.ambient-blob.b1{
  top: -26vmax; left: -22vmax;
  background: radial-gradient(circle at 30% 30%, rgba(91,124,250,0.28) 0%, rgba(91,124,250,0.13) 32%, rgba(91,124,250,0.04) 55%, transparent 75%);
  animation: drift1 34s var(--ease-ambient) infinite alternate;
}
.ambient-blob.b2{
  bottom: -30vmax; right: -24vmax;
  background: radial-gradient(circle at 60% 60%, rgba(124,151,255,0.18) 0%, rgba(124,151,255,0.09) 32%, rgba(124,151,255,0.03) 55%, transparent 75%);
  animation: drift2 40s var(--ease-ambient) infinite alternate;
}
@media (prefers-reduced-motion: reduce){
  .ambient-blob{ animation: none !important; }
}
@keyframes drift1{
  0%{ transform: translate(0,0) scale(1); }
  100%{ transform: translate(4%, 5%) scale(1.08); }
}
@keyframes drift2{
  0%{ transform: translate(0,0) scale(1); }
  100%{ transform: translate(-5%, -4%) scale(1.1); }
}

/* ---------- Layout shell ---------- */
.shell{
  position: relative;
  z-index: 1;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  padding: max(var(--sp-6), var(--safe-top) + var(--sp-5)) max(var(--sp-4), var(--safe-left) + var(--sp-4)) var(--sp-4);
}

/* ---------- Brand lockup ---------- */
.brand{
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  justify-content: center;
  margin-bottom: var(--sp-6);
}
.brand-mark{
  width: 34px; height: 34px;
  border-radius: 10px;
  overflow: hidden;
  flex-shrink: 0;
  background: var(--surface-2);
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
}
.brand-mark img{ width: 100%; height: 100%; object-fit: cover; }
.brand-name{
  font-weight: 800;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}

/* ---------- Card ---------- */
.card{
  position: relative;
  background: linear-gradient(175deg, rgba(21,21,25,0.86) 0%, rgba(16,16,20,0.86) 100%);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  box-shadow: var(--shadow-lg);
}
@supports (backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px)){
  .card{
    backdrop-filter: blur(28px) saturate(1.15);
    -webkit-backdrop-filter: blur(28px) saturate(1.15);
  }
}
.card::before{
  content:'';
  position:absolute; inset:0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(160deg, rgba(255,255,255,0.1), rgba(255,255,255,0) 40%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

/* ---------- Pill badge ---------- */
.pill{
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: var(--r-pill);
  background: var(--accent-soft);
  border: 1px solid var(--accent-soft-strong);
  color: var(--accent-2);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.01em;
}
.pill svg{ width: 13px; height: 13px; flex-shrink: 0; }

/* ---------- Buttons ---------- */
.btn{
  appearance: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  font-weight: 700;
  font-size: var(--fs-md);
  border-radius: var(--r-md);
  padding: 15px 22px;
  min-height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: transform var(--dur-fast) var(--ease-out),
              background var(--dur-base) var(--ease-out),
              box-shadow var(--dur-base) var(--ease-out),
              opacity var(--dur-base) var(--ease-out);
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}
.btn:active{ transform: scale(0.97); }
.btn-block{ width: 100%; }
.btn-primary{
  background: linear-gradient(165deg, #ffffff 0%, #f2f3f7 55%, #e3e5ec 100%);
  color: #14151b;
  letter-spacing: 0.01em;
  box-shadow:
    0 1px 0 rgba(255,255,255,0.9) inset,
    0 -6px 12px -10px rgba(0,0,0,0.12) inset,
    0 1px 2px rgba(0,0,0,0.15),
    0 12px 26px -12px rgba(0,0,0,0.55);
  transition: transform var(--dur-fast) var(--ease-out),
              box-shadow var(--dur-base) var(--ease-out),
              filter var(--dur-base) var(--ease-out),
              opacity var(--dur-base) var(--ease-out);
}
.btn-primary::before{
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(180deg, rgba(255,255,255,0.7), rgba(255,255,255,0) 55%);
  pointer-events: none;
}
/* Only .btn-label needs position:relative for its z-index (it's normally
   static). .spinner/.check-icon must stay position:absolute (set globally
   below) so they don't consume flex space while invisible — accidentally
   overriding that here was pushing the visible label off-center. */
.btn-primary .btn-label{ position: relative; z-index: 1; }
.btn-primary .spinner, .btn-primary .check-icon{ z-index: 1; }
.btn-primary .spinner{ border-color: rgba(20,21,27,0.22); border-top-color: #14151b; }
.btn-primary .check-icon svg{ stroke: #14151b; }
.btn-primary:hover{
  filter: brightness(1.02);
  transform: translateY(-1px);
  box-shadow:
    0 1px 0 rgba(255,255,255,0.9) inset,
    0 -6px 12px -10px rgba(0,0,0,0.12) inset,
    0 1px 2px rgba(0,0,0,0.15),
    0 16px 32px -12px rgba(0,0,0,0.6);
}
.btn-primary:active{ transform: translateY(0) scale(0.97); }
.btn-primary:disabled{ opacity: 0.4; cursor: not-allowed; transform: none; filter: none; box-shadow: none; }
.btn-primary:disabled::before{ display: none; }
.btn-primary.ready-pulse{ animation: ready-pulse 0.55s var(--ease-out); }
@keyframes ready-pulse{
  0%{ box-shadow: 0 1px 0 rgba(255,255,255,0.9) inset, 0 0 0 0 rgba(255,255,255,0.5); }
  100%{ box-shadow: 0 1px 0 rgba(255,255,255,0.9) inset, 0 0 0 14px rgba(255,255,255,0); }
}
@media (prefers-reduced-motion: reduce){ .btn-primary.ready-pulse{ animation: none; } .btn-primary:hover{ transform: none; } }
.btn-ghost{
  background: var(--surface-2);
  color: var(--text-2);
  border: 1.5px solid var(--border);
}
.btn-ghost:hover{ color: var(--text); border-color: var(--border-strong); }
.btn-sm{ min-height: 40px; padding: 8px 16px; font-size: var(--fs-sm); border-radius: var(--r-sm); }

.btn{ position: relative; }
.btn-label{ transition: opacity var(--dur-fast) var(--ease-out); }
.spinner, .check-icon{
  position: absolute;
  display: inline-flex; align-items: center; justify-content: center;
  opacity: 0;
  transform: scale(0.7);
  pointer-events: none;
  transition: opacity var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out);
}
.btn.is-loading .btn-label, .btn.is-success .btn-label{ opacity: 0; }
.btn.is-loading .spinner{ opacity: 1; transform: scale(1); }
.btn.is-success .check-icon{ opacity: 1; transform: scale(1); }
.check-icon svg{ width: 20px; height: 20px; fill: none; stroke: var(--text); stroke-width: 2.6; stroke-linecap: round; stroke-linejoin: round; }
.check-icon path{ stroke-dasharray: 20; stroke-dashoffset: 20; }
.btn.is-success .check-icon path{ animation: btn-check-draw 0.32s var(--ease-out) 0.08s forwards; }
@keyframes btn-check-draw{ to{ stroke-dashoffset: 0; } }
@media (prefers-reduced-motion: reduce){ .btn.is-success .check-icon path{ animation: none; stroke-dashoffset: 0; } }
.spinner-ring{
  width: 19px; height: 19px;
  border-radius: 50%;
  border: 2.5px solid rgba(255,255,255,0.35);
  border-top-color: #fff;
  animation: spin 0.7s linear infinite;
}
.btn-ghost .spinner-ring{ border-color: var(--border-strong); border-top-color: var(--text); }
@keyframes spin{ to{ transform: rotate(360deg); } }

/* ---------- Fields ---------- */
.field{ margin-bottom: var(--sp-5); }
.field-label{
  display: flex; align-items: baseline; gap: 6px;
  font-size: var(--fs-sm); font-weight: 600; color: var(--text-2);
  margin-bottom: var(--sp-2);
}
.field-label .req{ color: var(--danger); }
.field-label .opt{ color: var(--text-3); font-weight: 500; }
.field-hint{ font-size: var(--fs-xs); color: var(--text-3); margin-top: 6px; line-height: 1.5; }

.input, select.input{
  width: 100%;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  color: var(--text);
  padding: 14px 16px;
  font-size: 16px; /* prevents iOS zoom */
  min-height: 52px;
  outline: none;
  transition: border-color var(--dur-base) var(--ease-out), box-shadow var(--dur-base) var(--ease-out), background var(--dur-base), transform var(--dur-touch) var(--ease-out);
  -webkit-appearance: none;
  appearance: none;
}
.input::placeholder{ color: var(--text-3); }
.input:focus{
  border-color: var(--accent);
  background: var(--surface-3);
  box-shadow: 0 0 0 1px var(--accent), 0 0 18px -6px rgba(91,124,250,0.5);
}
.input.is-invalid{ border-color: var(--danger); }
.input.is-invalid:focus{ box-shadow: 0 0 0 1px var(--danger), 0 0 16px -6px rgba(251,113,133,0.45); }

select.input{
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='11' height='7'%3E%3Cpath d='M1 1l4.5 4.5L10 1' stroke='%236d7284' stroke-width='1.6' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}

.field-error{
  display: flex; align-items: center; gap: 6px;
  font-size: var(--fs-xs); font-weight: 600; color: var(--danger);
  margin-top: 8px;
  max-height: 0; opacity: 0; overflow: hidden;
  transition: max-height var(--dur-base) var(--ease-out), opacity var(--dur-base) var(--ease-out), margin var(--dur-base);
}
.field-error.show{ max-height: 40px; opacity: 1; }

/* ---------- Choice cards (radio-styled, touch-optimised) ---------- */
.choice-group{ display: flex; flex-direction: column; gap: 10px; }
.choice-group.grid-2{ display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.choice{
  position: relative;
  display: flex; align-items: center; gap: 12px;
  border: 1.5px solid var(--border);
  background: var(--surface-2);
  border-radius: var(--r-md);
  padding: 14px 16px;
  min-height: 52px;
  cursor: pointer;
  transition: border-color var(--dur-fast) var(--ease-out), background var(--dur-fast), transform var(--dur-fast);
  -webkit-tap-highlight-color: transparent;
}
.choice:active{ transform: scale(0.985); }
.choice input{ position: absolute; opacity: 0; pointer-events: none; }
.choice-dot{
  width: 20px; height: 20px; border-radius: 50%;
  border: 1.5px solid var(--border-strong);
  flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  transition: border-color var(--dur-fast), background var(--dur-fast);
}
.choice-dot::after{
  content:''; width: 9px; height: 9px; border-radius: 50%;
  background: var(--accent); transform: scale(0);
  transition: transform var(--dur-fast) var(--ease-spring);
}
.choice-body{ flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 2px; }
.choice-title{ display: block; font-weight: 600; font-size: var(--fs-sm); }
.choice-sub{ display: block; font-size: var(--fs-xs); color: var(--text-3); }
.choice-price{ font-weight: 800; font-size: var(--fs-md); flex-shrink: 0; }
.choice:has(input:checked){ border-color: var(--accent); background: var(--accent-soft); box-shadow: 0 0 0 1px var(--accent) inset; }
.choice:has(input:checked) .choice-dot{ border-color: var(--accent); }
.choice:has(input:checked) .choice-dot::after{ transform: scale(1); }
.choice.just-picked{ animation: choice-pick 0.32s var(--ease-spring); }
@keyframes choice-pick{ 0%{ transform: scale(1); } 45%{ transform: scale(1.02); } 100%{ transform: scale(1); } }
@media (prefers-reduced-motion: reduce){ .choice.just-picked{ animation: none; } }
.choice input:focus-visible ~ .choice-dot{ outline: 2px solid var(--accent-2); outline-offset: 2px; }

/* ---------- Checkbox ---------- */
.check-row{ display: flex; align-items: flex-start; gap: 12px; cursor: pointer; -webkit-tap-highlight-color: transparent; }
.check-row input{ position: absolute; opacity: 0; pointer-events: none; }
.check-box{
  width: 22px; height: 22px; border-radius: 7px; flex-shrink: 0; margin-top: 1px;
  border: 1.5px solid var(--border-strong);
  background: var(--surface-2);
  display: flex; align-items: center; justify-content: center;
  transition: all var(--dur-fast) var(--ease-out);
}
.check-box svg{ width: 13px; height: 13px; opacity: 0; transform: scale(0.5); transition: all var(--dur-fast) var(--ease-spring); stroke: #fff; }
.check-row input:checked ~ .check-box{ background: var(--accent); border-color: var(--accent); }
.check-row input:checked ~ .check-box svg{ opacity: 1; transform: scale(1); }
.check-row input:focus-visible ~ .check-box{ outline: 2px solid var(--accent-2); outline-offset: 2px; }
.check-label{ font-size: var(--fs-sm); color: var(--text-2); line-height: 1.5; }

/* ---------- Status banners ---------- */
.banner{
  display: flex; align-items: flex-start; gap: 10px;
  border-radius: var(--r-md);
  padding: 13px 15px;
  font-size: var(--fs-sm);
  line-height: 1.5;
  border: 1px solid transparent;
  max-height: 0; opacity: 0; overflow: hidden;
  transition: max-height var(--dur-base) var(--ease-out), opacity var(--dur-base), margin var(--dur-base);
}
.banner.show{ max-height: 200px; opacity: 1; }
.banner svg{ width: 17px; height: 17px; flex-shrink: 0; margin-top: 1px; }
.banner-danger.show{ background: var(--danger-soft); color: #ffc4cd; border-color: rgba(251,113,133,0.3); }
.banner-warning.show{ background: var(--warning-soft); color: #ffdfa6; border-color: rgba(245,185,68,0.3); }
.banner-success.show{ background: var(--success-soft); color: #baf5d9; border-color: rgba(52,211,153,0.3); }

/* ---------- Visually hidden (screen-reader only) ---------- */
.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;
}

/* ---------- Utility ---------- */
.stack-xs > * + *{ margin-top: var(--sp-2); }
.center-text{ text-align: center; }
@keyframes draw{ to{ stroke-dashoffset: 0; } }