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

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

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  min-height: 100vh;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

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

a:hover {
  color: var(--color-primary-hover);
}

h1,
h2,
h3 {
  font-weight: 700;
  line-height: 1.25;
  margin: 0 0 0.5em;
  color: var(--color-text);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.35rem, 3.5vw, 1.75rem);
}

h3 {
  font-size: 1.0625rem;
}

p {
  margin: 0 0 1rem;
}

button {
  font-family: inherit;
  cursor: pointer;
}

.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;
  top: -100px;
  left: 1rem;
  z-index: 9999;
  padding: 0.5rem 1rem;
  background: var(--color-primary);
  color: var(--color-text-inverse);
  border-radius: var(--radius-sm);
  font-weight: 600;
}

.skip-link:focus {
  top: 1rem;
}

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

.section-title {
  text-align: center;
  margin-bottom: 1.75rem;
  color: var(--color-text);
}

.section-title::after {
  content: "";
  display: block;
  width: 48px;
  height: 3px;
  margin: 0.65rem auto 0;
  background: var(--color-primary);
  border-radius: var(--radius-full);
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.lm-panel {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.lm-panel::before {
  display: none;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.35rem;
  min-height: 44px;
  border: none;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.9375rem;
  text-align: center;
  transition: background var(--transition), transform var(--transition),
    box-shadow var(--transition), color var(--transition);
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-text-inverse);
  box-shadow: 0 2px 8px rgba(11, 142, 201, 0.35);
}

.btn-primary:hover {
  background: var(--color-primary-hover);
  color: var(--color-text-inverse);
  box-shadow: 0 4px 14px rgba(11, 142, 201, 0.4);
  transform: translateY(-1px);
}

.btn-ghost {
  background: var(--color-bg);
  color: var(--color-primary);
  border: 1.5px solid var(--color-border-strong);
  box-shadow: var(--shadow-xs);
}

.btn-ghost:hover {
  background: var(--color-primary-light);
  border-color: var(--color-primary);
  color: var(--color-primary-hover);
}