:root {
  --color-bg: #f8fafc;
  --color-surface: #ffffff;
  --color-text: #111111;
  --color-muted: #4b5563;
  --color-border: #e2e8f0;
  --color-accent: #e11d48;
  --radius-sm: 8px;
  --radius-md: 16px;
  --shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
  --max-width: 1100px;
  --spacing-section: clamp(2.5rem, 4vw, 4.5rem);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
}

a {
  color: var(--color-text);
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

img {
  max-width: 100%;
  display: block;
  border-radius: var(--radius-sm);
}

.container {
  width: min(100% - 2.5rem, var(--max-width));
  margin-inline: auto;
}

header {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.top-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0;
}

.logo {
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 1.5rem;
}

nav a {
  text-decoration: none;
  font-weight: 600;
}

nav a:hover,
nav a:focus-visible {
  color: var(--color-accent);
}

.hero {
  padding: var(--spacing-section) 0;
}

.hero-grid {
  display: grid;
  gap: 2rem;
}

.hero h1 {
  font-size: clamp(2rem, 6vw, 3.5rem);
  margin-bottom: 1rem;
}

.hero p {
  color: var(--color-muted);
  font-size: 1.1rem;
}

.hero .badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: #111;
  color: #fff;
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.9rem 1.5rem;
  border-radius: var(--radius-sm);
  border: none;
  background: var(--color-accent);
  color: #fff;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
}

.btn.secondary {
  background: #111;
}

section {
  padding: var(--spacing-section) 0;
}

.section-heading {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 2rem;
}

.section-heading h2 {
  margin: 0;
  font-size: clamp(1.5rem, 3vw, 2.3rem);
}

.section-heading p {
  margin: 0;
  color: var(--color-muted);
}

.deal-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}

.deal-card {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.deal-card header {
  border: 0;
  padding: 0;
}

.deal-card strong {
  font-size: 1.1rem;
}

.pricing {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
}

.old-price {
  text-decoration: line-through;
  color: var(--color-muted);
}

.new-price {
  background: #111;
  color: #fff;
  padding: 0.2rem 0.75rem;
  border-radius: 999px;
  font-weight: 700;
}

.validity {
  color: var(--color-muted);
  font-size: 0.9rem;
}

.categories-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1rem;
}

.category-pill {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1rem;
  text-align: center;
  font-weight: 600;
}

.form-card {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  padding: 2rem;
  box-shadow: var(--shadow);
}

form {
  display: grid;
  gap: 1rem;
}

label {
  font-weight: 600;
}

input,
textarea {
  width: 100%;
  padding: 0.75rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  font: inherit;
}

footer {
  background: #111;
  color: #f8fafc;
  padding: 2rem 0;
  margin-top: var(--spacing-section);
}

footer a {
  color: #fff;
}

footer p {
  margin: 0.5rem 0;
  color: #e5e7eb;
}

.footer-grid {
  display: grid;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .hero-grid {
    grid-template-columns: 1.1fr 0.9fr;
    align-items: center;
  }

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}