:root {
  color-scheme: light;
  --bg: #fff1f6;
  --bg-deep: #f7d8e4;
  --card: rgba(255, 255, 255, 0.92);
  --text: #33212a;
  --muted: #7a6170;
  --primary: #f48fb1;
  --primary-dark: #df6d98;
  --primary-soft: rgba(244, 143, 177, 0.24);
  --danger: #c53b3b;
  --danger-bg: #fff1f1;
  --info: #9a5671;
  --info-bg: #fff3f8;
  --border: #ead4de;
  --shadow: 0 24px 60px rgba(124, 65, 91, 0.18);
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  font-family: "Nunito", "Segoe UI Rounded", "Arial Rounded MT Bold", ui-rounded, system-ui, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 20% 10%, rgba(244, 143, 177, 0.36), transparent 30%),
    radial-gradient(circle at 85% 15%, rgba(255, 201, 219, 0.62), transparent 28%),
    linear-gradient(140deg, var(--bg), var(--bg-deep));
}

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

a:hover {
  text-decoration: underline;
}

.page-shell {
  display: grid;
  min-height: 100vh;
  place-items: center;
  padding: 32px 16px;
}

.login-card {
  width: min(100%, 420px);
  padding: 42px 36px 32px;
  border: 1px solid rgba(255, 255, 255, 0.74);
  border-radius: 28px;
  background: var(--card);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.brand {
  display: flex;
  justify-content: center;
  margin-bottom: 22px;
}

.brand-mark {
  position: relative;
  width: 84px;
  height: 54px;
}

.brand-mark span {
  position: absolute;
  display: block;
  border-radius: 999px;
  background: linear-gradient(135deg, #ffc1d5, var(--primary-dark));
  box-shadow: 0 12px 24px rgba(223, 109, 152, 0.26);
}

.brand-mark span:nth-child(1) {
  left: 5px;
  bottom: 0;
  width: 42px;
  height: 42px;
}

.brand-mark span:nth-child(2) {
  left: 28px;
  top: 0;
  width: 48px;
  height: 48px;
}

.brand-mark span:nth-child(3) {
  right: 2px;
  bottom: 2px;
  width: 34px;
  height: 34px;
}

h1 {
  margin: 0;
  font-size: 2rem;
  line-height: 1.1;
  text-align: center;
  letter-spacing: -0.04em;
}

.subtitle {
  margin: 10px 0 30px;
  color: var(--muted);
  text-align: center;
}

.login-form {
  display: grid;
  gap: 18px;
}

.field-group {
  display: grid;
  gap: 8px;
}

label {
  color: #5a3949;
  font-size: 0.92rem;
  font-weight: 650;
}

input {
  width: 100%;
  min-height: 50px;
  padding: 0 15px;
  border: 1px solid var(--border);
  border-radius: 14px;
  color: var(--text);
  background: rgba(255, 255, 255, 0.86);
  font: inherit;
  outline: none;
  transition: border-color 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}

input:focus {
  border-color: var(--primary);
  background: #fff;
  box-shadow: 0 0 0 4px var(--primary-soft);
}

input:disabled {
  color: #937988;
  background: rgba(255, 255, 255, 0.62);
  cursor: wait;
}

.error-message {
  margin: 0;
  padding: 12px 14px;
  border: 1px solid rgba(197, 59, 59, 0.2);
  border-radius: 14px;
  color: var(--danger);
  background: var(--danger-bg);
  font-size: 0.92rem;
}

.error-message[data-tone="info"] {
  border-color: rgba(244, 143, 177, 0.32);
  color: var(--info);
  background: var(--info-bg);
}

button {
  min-height: 52px;
  border: 0;
  border-radius: 16px;
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  box-shadow: 0 14px 24px rgba(223, 109, 152, 0.24);
  cursor: pointer;
  font: inherit;
  font-weight: 750;
  transition: transform 0.16s ease, box-shadow 0.16s ease, filter 0.16s ease;
}

button:hover {
  filter: brightness(1.03);
  box-shadow: 0 18px 30px rgba(223, 109, 152, 0.3);
  transform: translateY(-1px);
}

button:disabled {
  cursor: wait;
  filter: saturate(0.82);
  opacity: 0.82;
  transform: none;
}

button:active {
  transform: translateY(0);
}

button:focus-visible,
a:focus-visible {
  outline: 3px solid var(--primary-soft);
  outline-offset: 3px;
}

@media (max-width: 480px) {
  .page-shell {
    align-items: stretch;
    padding: 18px;
  }

  .login-card {
    display: flex;
    flex-direction: column;
    justify-content: center;
    width: 100%;
    min-height: calc(100vh - 36px);
    padding: 34px 22px 28px;
    border-radius: 22px;
  }

  h1 {
    font-size: 1.75rem;
  }
}