/* ============================================================
   BestPrimeDayDeals.com — main.css
   Foundation: tokens, reset, typography, layout primitives
   ============================================================ */

/* --- Design tokens --- */
:root {
  /* Brand colors */
  --color-primary: #FF6B35;
  --color-primary-dark: #E55A2B;
  --color-accent: #004E89;
  --color-accent-dark: #003B68;
  --color-success: #2A9D8F;
  --color-danger: #C0392B;

  /* Neutrals */
  --color-bg: #FFFFFF;
  --color-bg-alt: #F7F7F5;
  --color-bg-shade: #EFEFEC;
  --color-text: #1A1A1A;
  --color-text-muted: #5A5A5A;
  --color-text-subtle: #8A8A8A;
  --color-border: #E5E5E5;
  --color-border-strong: #D2D2D2;
  --color-star: #F4B400;

  /* Spacing scale */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --space-9: 96px;
  --space-10: 128px;

  /* Type scale (1.25 ratio) */
  --fs-sm: 0.875rem;
  --fs-base: 1rem;
  --fs-md: 1.125rem;
  --fs-lg: 1.25rem;
  --fs-xl: 1.5rem;
  --fs-2xl: 1.875rem;
  --fs-3xl: 2.5rem;
  --fs-4xl: 3.5rem;

  /* Other tokens */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 20px;
  --radius-full: 999px;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04), 0 1px 3px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.06), 0 2px 4px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 12px 24px rgba(0, 0, 0, 0.08), 0 4px 8px rgba(0, 0, 0, 0.04);
  --transition-fast: 0.15s ease;
  --transition-base: 0.25s ease;

  --container-max: 1200px;
  --container-narrow: 760px;

  --font-sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { animation-duration: 0.001s !important; transition-duration: 0.001s !important; } }
body { margin: 0; font-family: var(--font-sans); font-size: var(--fs-base); line-height: 1.6; color: var(--color-text); background: var(--color-bg); -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
img, picture, svg, video { max-width: 100%; height: auto; display: block; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
a { color: var(--color-accent); text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible, button:focus-visible, input:focus-visible, summary:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; border-radius: 2px; }
hr { border: 0; border-top: 1px solid var(--color-border); margin: var(--space-6) 0; }

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.2; margin: 0 0 var(--space-4); color: var(--color-text); letter-spacing: -0.01em; }
h1 { font-size: var(--fs-3xl); font-weight: 800; letter-spacing: -0.02em; }
h2 { font-size: var(--fs-2xl); }
h3 { font-size: var(--fs-xl); }
h4 { font-size: var(--fs-lg); }
h5 { font-size: var(--fs-md); }
h6 { font-size: var(--fs-base); }
@media (min-width: 768px) {
  h1 { font-size: var(--fs-4xl); }
  h2 { font-size: var(--fs-3xl); }
  h3 { font-size: var(--fs-2xl); }
}
p { margin: 0 0 var(--space-4); }
small { font-size: var(--fs-sm); }
strong, b { font-weight: 600; }

/* --- Layout primitives --- */
.container { width: 100%; max-width: var(--container-max); margin-inline: auto; padding-inline: var(--space-4); }
.container--narrow { max-width: var(--container-narrow); }
@media (min-width: 768px) { .container { padding-inline: var(--space-6); } }

.section { padding-block: var(--space-7); }
.section--alt { background: var(--color-bg-alt); }
@media (min-width: 768px) { .section { padding-block: var(--space-9); } }

.grid { display: grid; gap: var(--space-5); }
.grid--2 { grid-template-columns: 1fr; }
.grid--3 { grid-template-columns: 1fr; }
.grid--4 { grid-template-columns: 1fr; }
@media (min-width: 640px) {
  .grid--2 { grid-template-columns: repeat(2, 1fr); }
  .grid--3 { grid-template-columns: repeat(2, 1fr); }
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
  .grid--3 { grid-template-columns: repeat(3, 1fr); }
  .grid--4 { grid-template-columns: repeat(4, 1fr); }
}

.flex { display: flex; gap: var(--space-3); }
.flex--center { align-items: center; justify-content: center; }
.flex--between { align-items: center; justify-content: space-between; }
.flex--wrap { flex-wrap: wrap; }

/* --- Skip link & a11y --- */
.skip-link { position: absolute; left: -10000px; top: auto; width: 1px; height: 1px; overflow: hidden; }
.skip-link:focus { position: fixed; left: var(--space-4); top: var(--space-4); width: auto; height: auto; padding: var(--space-3) var(--space-4); background: var(--color-text); color: #fff; border-radius: var(--radius-md); z-index: 9999; }

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

/* --- Generic content blocks --- */
.eyebrow { font-size: var(--fs-sm); font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em; color: var(--color-primary); margin-bottom: var(--space-2); }

.lead { font-size: var(--fs-md); color: var(--color-text-muted); max-width: 60ch; }
@media (min-width: 768px) { .lead { font-size: var(--fs-lg); } }

.muted { color: var(--color-text-muted); }
.center { text-align: center; }

/* Prose: long-form article body */
.prose { max-width: 70ch; }
.prose p, .prose li { font-size: var(--fs-md); line-height: 1.75; color: var(--color-text); }
.prose h2 { margin-top: var(--space-7); }
.prose h3 { margin-top: var(--space-6); }
.prose ul, .prose ol { padding-left: 1.4em; margin-bottom: var(--space-5); }
.prose li { margin-bottom: var(--space-2); }
.prose blockquote { border-left: 4px solid var(--color-primary); padding: var(--space-2) var(--space-5); margin: var(--space-5) 0; color: var(--color-text-muted); font-style: italic; }
.prose img { border-radius: var(--radius-lg); margin: var(--space-5) 0; }

/* --- Page hero (used by hub pages) --- */
.page-hero { padding-block: var(--space-7) var(--space-6); border-bottom: 1px solid var(--color-border); background: linear-gradient(180deg, var(--color-bg-alt) 0%, var(--color-bg) 100%); }
.page-hero h1 { margin-bottom: var(--space-3); }
.page-hero .lead { margin-bottom: 0; }

/* --- Header (hydrated by JS) --- */
.site-header { position: sticky; top: 0; z-index: 100; background: rgba(255,255,255,0.96); backdrop-filter: saturate(180%) blur(8px); border-bottom: 1px solid var(--color-border); }
.site-header__inner { display: flex; align-items: center; gap: var(--space-3); flex-wrap: wrap; row-gap: var(--space-2); padding-block: var(--space-3); }
.site-header__brand { font-weight: 800; font-size: var(--fs-lg); color: var(--color-text); letter-spacing: -0.01em; text-decoration: none; flex-shrink: 0; }
.site-header__brand-text { display: inline-block; }
.site-header__nav { display: none; gap: var(--space-3); flex-wrap: wrap; align-items: center; flex: 0 1 auto; min-width: 0; }
.site-header__nav a { color: var(--color-text); font-weight: 500; padding: var(--space-2) 0; position: relative; }
.site-header__nav a:hover { color: var(--color-primary); text-decoration: none; }
.site-header__nav a.is-active { color: var(--color-primary); }
.site-header__nav a.is-active::after { content: ""; position: absolute; left: 0; right: 0; bottom: -2px; height: 2px; background: var(--color-primary); border-radius: 2px; }
.site-header__search { display: none; position: relative; flex: 0 1 280px; min-width: 0; max-width: 280px; }
.site-header__search input { width: 100%; padding: 10px 14px 10px 40px; border: 1px solid var(--color-border); border-radius: var(--radius-full); background: var(--color-bg-alt); transition: border-color var(--transition-fast), background var(--transition-fast); }
.site-header__search input:focus { background: var(--color-bg); border-color: var(--color-accent); outline: none; }
.site-header__search-icon { position: absolute; left: 14px; top: 50%; transform: translateY(-50%); color: var(--color-text-subtle); pointer-events: none; }
.site-header__search-results { position: absolute; top: calc(100% + 8px); left: 0; right: 0; background: var(--color-bg); border: 1px solid var(--color-border); border-radius: var(--radius-md); box-shadow: var(--shadow-lg); max-height: 360px; overflow-y: auto; display: none; z-index: 200; }
.site-header__search-results.is-open { display: block; }
.site-header__search-result { padding: var(--space-3) var(--space-4); border-bottom: 1px solid var(--color-border); display: block; color: var(--color-text); }
.site-header__search-result:last-child { border-bottom: 0; }
.site-header__search-result:hover, .site-header__search-result:focus { background: var(--color-bg-alt); text-decoration: none; }
.site-header__search-result strong { display: block; font-weight: 600; }
.site-header__search-result span { font-size: var(--fs-sm); color: var(--color-text-muted); }

.site-header__hamburger { margin-left: auto; background: transparent; border: 0; padding: var(--space-2); border-radius: var(--radius-md); display: inline-flex; }
.site-header__hamburger:hover { background: var(--color-bg-alt); }

@media (min-width: 1024px) {
  .site-header__nav { display: flex; gap: var(--space-4); }
  .site-header__search { display: block; margin-left: auto; }
  .site-header__hamburger { margin-left: var(--space-2); }
}

/* Slide-in site menu (all viewports; hamburger opens full nav including categories) */
.mobile-menu { position: fixed; inset: 0; background: var(--color-bg); z-index: 1000; transform: translateX(100%); transition: transform var(--transition-base); display: flex; flex-direction: column; }
.mobile-menu.is-open { transform: translateX(0); }
.mobile-menu__head { display: flex; align-items: center; justify-content: space-between; padding: var(--space-4); border-bottom: 1px solid var(--color-border); }
.mobile-menu__close { background: transparent; border: 0; padding: var(--space-2); border-radius: var(--radius-md); }
.mobile-menu__close:hover { background: var(--color-bg-alt); }
.mobile-menu__nav { padding: var(--space-4); display: flex; flex-direction: column; gap: var(--space-1); overflow-y: auto; flex: 1; }
.mobile-menu__nav a { padding: var(--space-3) var(--space-3); border-radius: var(--radius-md); color: var(--color-text); font-weight: 500; font-size: var(--fs-md); }
.mobile-menu__nav a:hover, .mobile-menu__nav a.is-active { background: var(--color-bg-alt); color: var(--color-primary); text-decoration: none; }
.mobile-menu__section-label { font-size: var(--fs-sm); text-transform: uppercase; font-weight: 600; color: var(--color-text-subtle); letter-spacing: 0.08em; padding: var(--space-3) var(--space-3) var(--space-1); }
body.menu-open { overflow: hidden; }

/* Header fallback (no JS) */
.site-header-fallback, .site-footer-fallback { padding: var(--space-3) 0; border-bottom: 1px solid var(--color-border); background: var(--color-bg-alt); }
.site-header-fallback__inner { display: flex; gap: var(--space-4); flex-wrap: wrap; align-items: center; justify-content: space-between; }
.site-header-fallback .brand { font-weight: 800; color: var(--color-text); }
.site-header-fallback nav a { margin-right: var(--space-4); color: var(--color-text); }
.site-footer-fallback { border-top: 1px solid var(--color-border); border-bottom: 0; }

/* --- Footer --- */
.site-footer { background: var(--color-text); color: #d8d8d8; padding-block: var(--space-8) var(--space-5); margin-top: var(--space-9); }
.site-footer a { color: #d8d8d8; }
.site-footer a:hover { color: #fff; }
.site-footer__grid { display: grid; gap: var(--space-7); grid-template-columns: 1fr; }
@media (min-width: 768px) { .site-footer__grid { grid-template-columns: 1.4fr 1fr 1fr 1.2fr; } }
.site-footer__brand { font-weight: 800; color: #fff; font-size: var(--fs-lg); }
.site-footer__about { font-size: var(--fs-sm); color: #b3b3b3; max-width: 32ch; margin-top: var(--space-3); }
.site-footer__col h3 { color: #fff; font-size: var(--fs-md); margin-bottom: var(--space-3); }
.site-footer__col ul { list-style: none; padding: 0; margin: 0; }
.site-footer__col li { margin-bottom: var(--space-2); }
.site-footer__newsletter input { width: 100%; padding: 10px 14px; border: 1px solid #444; background: #2a2a2a; color: #fff; border-radius: var(--radius-md); margin-bottom: var(--space-2); }
.site-footer__newsletter input::placeholder { color: #888; }
.site-footer__newsletter button { width: 100%; }
.site-footer__bottom { margin-top: var(--space-7); padding-top: var(--space-5); border-top: 1px solid #2c2c2c; display: flex; flex-wrap: wrap; gap: var(--space-3); justify-content: space-between; align-items: center; font-size: var(--fs-sm); color: #999; }
.site-footer__disclosure { font-size: var(--fs-sm); color: #b3b3b3; padding: var(--space-3) var(--space-4); background: #2a2a2a; border-radius: var(--radius-md); margin-top: var(--space-5); border-left: 3px solid var(--color-primary); }
.site-footer__social { display: flex; gap: var(--space-3); }
.site-footer__social a { width: 36px; height: 36px; border-radius: 50%; background: #2c2c2c; display: inline-flex; align-items: center; justify-content: center; transition: background var(--transition-fast); }
.site-footer__social a:hover { background: var(--color-primary); }

/* --- 404 page --- */
.error-page { text-align: center; padding-block: var(--space-9); }
.error-page__code { font-size: clamp(4rem, 12vw, 7rem); font-weight: 800; color: var(--color-primary); margin: 0; letter-spacing: -0.04em; }
.error-page__title { margin-bottom: var(--space-3); }
.error-page__lede { font-size: var(--fs-md); color: var(--color-text-muted); max-width: 60ch; margin-inline: auto; margin-bottom: var(--space-6); }
.error-page__actions { display: flex; gap: var(--space-3); flex-wrap: wrap; justify-content: center; }

/* --- Hub intro --- */
.hub-intro { font-size: var(--fs-md); color: var(--color-text-muted); max-width: 70ch; margin-bottom: var(--space-6); }

/* Dropdown caret */
.caret { display: inline-block; width: 0; height: 0; border-left: 4px solid transparent; border-right: 4px solid transparent; border-top: 4px solid currentColor; margin-left: 4px; vertical-align: middle; }