/* Reset & base ------------------------------------------------------------ */
*, *::before, *::after { box-sizing: border-box; }

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

body {
  margin: 0;
  font-family: var(--font);
  font-size: var(--fs-body);
  line-height: 1.6;
  color: var(--c-text);
  background: var(--c-bg);
  word-break: keep-all;
  overflow-wrap: anywhere;
}

h1, h2, h3, h4, h5, p, figure, blockquote, dl, dd { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
img, svg, video { max-width: 100%; vertical-align: middle; }
img { height: auto; }

a { color: inherit; text-decoration: none; }
a:hover { color: var(--c-primary); }

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

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

hr { border: 0; border-top: 1px solid var(--c-line); margin: 32px 0; }

:focus-visible { outline: 2px solid var(--c-primary); outline-offset: 2px; border-radius: 4px; }

/* Accessibility ----------------------------------------------------------- */
.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;
}

.skip-link {
  position: absolute; left: 50%; top: -60px; transform: translateX(-50%);
  z-index: 1000; padding: 10px 20px; background: var(--c-primary); color: #fff;
  border-radius: 0 0 8px 8px; transition: top .2s var(--ease);
}
.skip-link:focus { top: 0; color: #fff; }

/* Typography helpers ------------------------------------------------------ */
.h1 { font-size: var(--fs-h1); font-weight: 800; line-height: 1.25; letter-spacing: -.02em; }
.h2 { font-size: var(--fs-h2); font-weight: 800; line-height: 1.3; letter-spacing: -.02em; }
.h3 { font-size: var(--fs-h3); font-weight: 700; line-height: 1.4; letter-spacing: -.01em; }
.text-sub { color: var(--c-text-sub); }
.text-muted { color: var(--c-text-muted); }
.text-center { text-align: center; }
.nowrap { white-space: nowrap; }

/* Buttons ----------------------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 46px; padding: 0 22px; border-radius: 999px;
  font-size: 15px; font-weight: 700; line-height: 1;
  border: 1px solid transparent; background: var(--c-bg-soft); color: var(--c-text);
  transition: background .18s var(--ease), color .18s var(--ease),
              border-color .18s var(--ease), transform .18s var(--ease), box-shadow .18s var(--ease);
}
.btn:hover { color: var(--c-text); transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn--primary { background: var(--c-primary); color: #fff; }
.btn--primary:hover { background: var(--c-primary-dark); color: #fff; box-shadow: 0 8px 20px rgba(47, 91, 255, .28); }

.btn--accent { background: var(--c-accent); color: #fff; }
.btn--accent:hover { background: #6528d8; color: #fff; }

.btn--line { background: transparent; border-color: var(--c-line); color: var(--c-text); }
.btn--line:hover { border-color: var(--c-primary); color: var(--c-primary); }

.btn--ghost { background: rgba(255, 255, 255, .16); color: #fff; border-color: rgba(255, 255, 255, .4); }
.btn--ghost:hover { background: rgba(255, 255, 255, .28); color: #fff; }

.btn--danger { background: #fff; border-color: var(--c-danger); color: var(--c-danger); }
.btn--danger:hover { background: var(--c-danger); color: #fff; }

.btn--lg { height: 56px; padding: 0 34px; font-size: 17px; }
.btn--sm { height: 34px; padding: 0 14px; font-size: 13px; border-radius: 8px; }
.btn--block { width: 100%; }
.btn[disabled], .btn.is-disabled { opacity: .5; pointer-events: none; }

/* Forms ------------------------------------------------------------------- */
.field { margin-bottom: 18px; }
.field__label { display: block; margin-bottom: 8px; font-size: 14px; font-weight: 700; }
.field__label .req { color: var(--c-danger); }
.field__help { margin-top: 6px; font-size: 13px; color: var(--c-text-muted); }
.field__error { margin-top: 6px; font-size: 13px; color: var(--c-danger); }

.input, .select, .textarea {
  width: 100%; height: 48px; padding: 0 14px;
  border: 1px solid var(--c-line); border-radius: var(--radius-sm);
  background: #fff; transition: border-color .15s var(--ease), box-shadow .15s var(--ease);
}
.textarea { height: auto; min-height: 160px; padding: 12px 14px; line-height: 1.6; resize: vertical; }
.select { appearance: none; padding-right: 34px;
  background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%23666' d='M1 1l5 5 5-5'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 12px center; }
.input:focus, .select:focus, .textarea:focus {
  outline: none; border-color: var(--c-primary); box-shadow: 0 0 0 3px rgba(47, 91, 255, .12);
}
.input.is-error, .textarea.is-error { border-color: var(--c-danger); }

.checkbox, .radio { display: inline-flex; align-items: center; gap: 8px; cursor: pointer; }
.checkbox input, .radio input { width: 18px; height: 18px; accent-color: var(--c-primary); }

/* Alerts ------------------------------------------------------------------ */
.alert { padding: 14px 18px; border-radius: var(--radius-sm); font-size: 14px; margin-bottom: 20px; }
.alert--error { background: #FDECEC; color: #B01919; }
.alert--success { background: #E8F7EF; color: #0B7A3C; }
.alert--info { background: var(--c-primary-soft); color: var(--c-primary-dark); }