/* ALIGC base: reset, typography, forms, buttons, utilities */

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

* { margin: 0; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 110px;
}

body {
  min-height: 100%;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  line-height: 1.6;
  font-weight: 450;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

body.is-locked { overflow: hidden; }

[hidden] { display: none !important; }

img, svg, video, canvas { display: block; max-width: 100%; }
img { height: auto; }

h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.14;
  letter-spacing: -0.018em;
  color: var(--ink);
  text-wrap: balance;
}
h1 { font-size: clamp(2rem, 1.3rem + 2.6vw, var(--fs-4xl)); }
h2 { font-size: clamp(1.6rem, 1.15rem + 1.6vw, var(--fs-3xl)); }
h3 { font-size: var(--fs-xl); }
h4 { font-size: var(--fs-lg); }
h5 { font-size: var(--fs-md); }

p { text-wrap: pretty; }

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--dur-2) var(--ease), opacity var(--dur-2) var(--ease);
}
a:hover { color: var(--brand-500); }

ul, ol { padding-left: 1.15em; }
li::marker { color: var(--brand-300); }

button, input, select, textarea {
  font: inherit;
  color: inherit;
}
button { cursor: pointer; background: none; border: 0; }

:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
  border-radius: var(--r-xs);
}

::selection { background: var(--brand-200); color: var(--brand-950); }

hr { border: 0; border-top: 1px solid var(--line); }

table { border-collapse: collapse; width: 100%; }

/* ---------- Layout helpers ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: clamp(16px, 4vw, 32px);
}
.container--wide { max-width: var(--container-wide); }
.container--narrow { max-width: var(--container-narrow); }

.section { padding-block: clamp(40px, 5vw, 76px); }
.section--tight { padding-block: clamp(28px, 3vw, 44px); }
.section--paper { background: var(--paper-2); }
.section--ink { background: var(--brand-950); color: #fff; }
.section--ink h2, .section--ink h3 { color: #fff; }

.stack > * + * { margin-top: var(--sp-3); }
.stack-lg > * + * { margin-top: var(--sp-6); }
.row { display: flex; align-items: center; gap: var(--sp-3); }
.row--between { justify-content: space-between; }
.row--wrap { flex-wrap: wrap; }
.grid { display: grid; gap: var(--sp-5); }
.spacer { flex: 1; }

.text-center { text-align: center; }
.muted { color: var(--muted); }
.small { font-size: var(--fs-sm); }
.tiny { font-size: var(--fs-2xs); }
.strong { font-weight: 700; }
.mono { font-family: var(--font-mono); font-size: 0.9em; }
.serif { font-family: var(--font-display); }
.nowrap { white-space: nowrap; }
.clamp-2 { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.clamp-3 { display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.hidden { display: none !important; }
.mt-0 { margin-top: 0 !important; }

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  top: -100px;
  left: 16px;
  z-index: 200;
  padding: 10px 18px;
  background: var(--brand-500);
  color: #fff;
  border-radius: 0 0 var(--r-sm) var(--r-sm);
  transition: top var(--dur-2) var(--ease);
}
.skip-link:focus { top: 0; color: #fff; }

/* ---------- Eyebrow / section head ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: var(--fs-2xs);
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--brand-500);
}
.eyebrow::before {
  content: "";
  width: 22px; height: 2px;
  background: currentColor;
  border-radius: 2px;
}
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--sp-5);
  margin-bottom: var(--sp-6);
  flex-wrap: wrap;
}
.section-head__text { max-width: 62ch; }
.section-head__text p { color: var(--muted); margin-top: 8px; }

/* ---------- Buttons ---------- */
.btn {
  --btn-bg: var(--brand-500);
  --btn-fg: #fff;
  --btn-bd: transparent;
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 20px;
  min-height: 44px;
  border: 1px solid var(--btn-bd);
  border-radius: var(--r-pill);
  background: var(--btn-bg);
  color: var(--btn-fg);
  font-size: var(--fs-sm);
  font-weight: 700;
  letter-spacing: 0.01em;
  white-space: nowrap;
  transition: transform var(--dur-2) var(--ease-out), box-shadow var(--dur-2) var(--ease),
    background var(--dur-2) var(--ease), color var(--dur-2) var(--ease), border-color var(--dur-2) var(--ease);
}
.btn:hover { color: var(--btn-fg); transform: translateY(-1px); box-shadow: var(--sh-md); }
.btn:active { transform: translateY(0) scale(0.985); box-shadow: var(--sh-xs); }
.btn[disabled], .btn.is-disabled { opacity: 0.5; pointer-events: none; }
.btn svg { width: 18px; height: 18px; flex: none; }

.btn--primary { --btn-bg: var(--brand-500); }
.btn--primary:hover { --btn-bg: var(--brand-600); }
.btn--deal { --btn-bg: var(--deal-500); }
.btn--deal:hover { --btn-bg: var(--deal-600); }
.btn--ink { --btn-bg: var(--ink); --btn-fg: var(--surface); }
.btn--ghost { --btn-bg: transparent; --btn-fg: var(--ink); --btn-bd: var(--line-strong); }
.btn--ghost:hover { --btn-bg: var(--surface); --btn-bd: var(--brand-300); --btn-fg: var(--brand-600); }
.btn--soft { --btn-bg: var(--brand-100); --btn-fg: var(--brand-700); }
.btn--soft:hover { --btn-bg: var(--brand-200); }
.btn--white { --btn-bg: #fff; --btn-fg: var(--brand-900); }
.btn--link {
  --btn-bg: transparent; --btn-fg: var(--brand-600);
  min-height: 0; padding: 4px 0; border-radius: var(--r-xs);
}
.btn--link:hover { transform: none; box-shadow: none; text-decoration: underline; text-underline-offset: 3px; }
.btn--lg { padding: 15px 30px; min-height: 54px; font-size: var(--fs-md); }
.btn--sm { padding: 7px 14px; min-height: 36px; font-size: var(--fs-2xs); }
.btn--block { width: 100%; }
.btn--icon { padding: 0; width: 44px; min-height: 44px; border-radius: var(--r-pill); }

.icon-btn {
  display: inline-grid;
  place-items: center;
  width: 40px; height: 40px;
  border-radius: var(--r-pill);
  color: var(--ink-2);
  background: transparent;
  transition: background var(--dur-2) var(--ease), color var(--dur-2) var(--ease), transform var(--dur-2) var(--ease-out);
}
.icon-btn:hover { background: var(--surface-3); color: var(--brand-600); transform: translateY(-1px); }
.icon-btn svg { width: 20px; height: 20px; }

/* ---------- Forms ---------- */
.field { display: block; }
.field__label {
  display: block;
  margin-bottom: 6px;
  font-size: var(--fs-xs);
  font-weight: 700;
  color: var(--ink-2);
}
.field__hint { margin-top: 6px; font-size: var(--fs-2xs); color: var(--muted); }
.field__error { margin-top: 6px; font-size: var(--fs-2xs); color: var(--deal-600); font-weight: 600; display: none; }
.field.is-invalid .field__error { display: block; }
.field.is-invalid .input, .field.is-invalid .select { border-color: var(--deal-500); background: var(--deal-050); }

.input, .select, .textarea {
  width: 100%;
  padding: 12px 14px;
  min-height: 46px;
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: var(--r-sm);
  font-size: var(--fs-sm);
  transition: border-color var(--dur-2) var(--ease), box-shadow var(--dur-2) var(--ease), background var(--dur-2) var(--ease);
}
.input::placeholder, .textarea::placeholder { color: var(--muted-2); }
.input:focus, .select:focus, .textarea:focus {
  outline: none;
  border-color: var(--brand-400);
  box-shadow: var(--ring);
}
.textarea { min-height: 120px; resize: vertical; line-height: 1.55; }
.select {
  appearance: none;
  padding-right: 38px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%236B6577' stroke-width='2.2' stroke-linecap='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 16px;
}
.form-grid { display: grid; gap: var(--sp-4); grid-template-columns: repeat(2, minmax(0, 1fr)); }
.form-grid .span-2 { grid-column: 1 / -1; }
@media (max-width: 640px) { .form-grid { grid-template-columns: 1fr; } }

.check {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: var(--fs-sm);
  cursor: pointer;
}
.check input { flex: none; width: 18px; height: 18px; margin-top: 2px; accent-color: var(--brand-500); }

.switch {
  position: relative;
  display: inline-flex;
  width: 44px; height: 24px;
  flex: none;
}
.switch input { position: absolute; opacity: 0; inset: 0; margin: 0; cursor: pointer; }
.switch__track {
  width: 100%; height: 100%;
  border-radius: var(--r-pill);
  background: var(--line-strong);
  transition: background var(--dur-2) var(--ease);
}
.switch__track::after {
  content: "";
  position: absolute;
  top: 3px; left: 3px;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: #fff;
  box-shadow: var(--sh-xs);
  transition: transform var(--dur-3) var(--ease-spring);
}
.switch input:checked + .switch__track { background: var(--mint-500); }
.switch input:checked + .switch__track::after { transform: translateX(20px); }

/* ---------- Animation utilities ---------- */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity var(--dur-4) var(--ease-out), transform var(--dur-4) var(--ease-out);
}
.reveal.is-in { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: 70ms; }
.reveal[data-delay="2"] { transition-delay: 140ms; }
.reveal[data-delay="3"] { transition-delay: 210ms; }
.reveal[data-delay="4"] { transition-delay: 280ms; }
.reveal[data-delay="5"] { transition-delay: 350ms; }

@keyframes fade-up { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }
@keyframes fade-in { from { opacity: 0; } to { opacity: 1; } }
@keyframes pop-in { 0% { opacity: 0; transform: scale(0.94) translateY(10px); } 100% { opacity: 1; transform: none; } }
@keyframes shimmer { 100% { background-position: -200% 0; } }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes pulse-ring {
  0% { box-shadow: 0 0 0 0 rgba(226, 62, 87, 0.45); }
  70% { box-shadow: 0 0 0 12px rgba(226, 62, 87, 0); }
  100% { box-shadow: 0 0 0 0 rgba(226, 62, 87, 0); }
}
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }
@keyframes float-y { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }

.spinner {
  width: 18px; height: 18px;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  animation: spin 700ms linear infinite;
}

.skeleton {
  background: linear-gradient(100deg, var(--surface-3) 30%, var(--surface-2) 50%, var(--surface-3) 70%);
  background-size: 200% 100%;
  animation: shimmer 1.3s var(--ease) infinite;
  border-radius: var(--r-sm);
}

@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;
  }
  .reveal { opacity: 1; transform: none; }
}

/* Custom scrollbar (desktop) */
@media (min-width: 900px) {
  * { scrollbar-width: thin; scrollbar-color: var(--line-strong) transparent; }
  *::-webkit-scrollbar { width: 10px; height: 10px; }
  *::-webkit-scrollbar-thumb {
    background: var(--line-strong);
    border-radius: 99px;
    border: 3px solid var(--bg);
  }
  *::-webkit-scrollbar-thumb:hover { background: var(--brand-300); }
}