/* AlphaHive Website - Design System
 * Consistent with Proofly website design system
 * Fonts: Manrope (headings), Inter (body)
 * Palette: Slate / Teal-green (same as proofly-shopify.com)
 */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  scroll-behavior: smooth;
}

:root {
  --color-primary-900: #0f172a;
  --color-primary-800: #1e293b;
  --color-primary-700: #334155;
  --color-primary-600: #475569;
  --color-primary-500: #64748b;
  --color-neutral-0: #ffffff;
  --color-neutral-50: #f8fafc;
  --color-neutral-100: #f1f5f9;
  --color-neutral-200: #e2e8f0;
  --color-neutral-300: #cbd5e1;
  --color-neutral-400: #94a3b8;
  --color-success-700: #0f766e;
  --color-success-600: #0d9488;
  --color-success-500: #14b8a6;
  --font-heading: "Manrope", ui-sans-serif, system-ui, -apple-system, sans-serif;
  --font-body: "Inter", ui-sans-serif, system-ui, -apple-system, sans-serif;
  --radius-card: 16px;
  --radius-button: 12px;
  --shadow-card: 0 1px 3px rgba(15, 23, 42, 0.04), 0 1px 2px rgba(15, 23, 42, 0.06);
  --shadow-hover: 0 16px 48px rgba(15, 23, 42, 0.12);
  --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--color-primary-600);
  background: var(--color-neutral-0);
  overflow-x: hidden;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  color: var(--color-primary-900);
  font-weight: 700;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

h1 {
  font-size: 2.75rem;
  line-height: 1.2;
  font-weight: 800;
}

h2 {
  font-size: 2rem;
  line-height: 1.3;
}

h3 {
  font-size: 1.25rem;
  line-height: 1.4;
  font-weight: 600;
}

p {
  margin-bottom: 1rem;
}

a {
  color: var(--color-success-600);
  text-decoration: none;
  transition: color var(--transition-base);
}

a:hover {
  color: var(--color-success-700);
}

strong {
  font-weight: 600;
  color: var(--color-primary-800);
}

/* Layout */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 2rem;
}

.container--narrow {
  max-width: 780px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Nav */
.nav {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.6);
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav__logo {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--color-primary-900);
  letter-spacing: -0.03em;
}

.nav__logo:hover {
  color: var(--color-primary-900);
}

.nav__links {
  display: flex;
  gap: 2rem;
  align-items: center;
  list-style: none;
}

.nav__links a {
  color: var(--color-primary-500);
  font-size: 0.9375rem;
  font-weight: 500;
}

.nav__links a:hover {
  color: var(--color-primary-900);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-button);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  text-decoration: none;
  transition: all var(--transition-base);
  cursor: pointer;
  border: none;
}

.btn--primary {
  background: var(--color-primary-900);
  color: var(--color-neutral-0);
}

.btn--primary:hover {
  background: var(--color-primary-800);
  color: var(--color-neutral-0);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.2);
}

.btn--accent {
  background: var(--color-success-600);
  color: var(--color-neutral-0);
}

.btn--accent:hover {
  background: var(--color-success-700);
  color: var(--color-neutral-0);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(13, 148, 136, 0.3);
}

/* Ensure nav buttons always have white text regardless of nav link colour rules */
.nav__links .btn--accent,
.nav__links .btn--accent:hover,
.nav__links .btn--primary,
.nav__links .btn--primary:hover {
  color: #ffffff !important;
}

.btn--large {
  padding: 1rem 2.5rem;
  font-size: 1.0625rem;
  border-radius: 14px;
}

/* Cards */
.card {
  background: var(--color-neutral-0);
  border-radius: var(--radius-card);
  padding: 2rem;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-neutral-200);
  transition: all var(--transition-base);
}

.card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

/* Page header (for inner pages) */
.page-header {
  background: var(--color-primary-900);
  color: var(--color-neutral-0);
  padding: 3rem 0 2.5rem;
}

.page-header .breadcrumb {
  font-size: 0.8125rem;
  color: var(--color-neutral-400);
  margin-bottom: 0.75rem;
}

.page-header .breadcrumb a {
  color: var(--color-neutral-400);
}

.page-header .breadcrumb a:hover {
  color: var(--color-neutral-0);
}

.page-header h1 {
  color: var(--color-neutral-0);
  margin-bottom: 0.5rem;
}

.page-header .meta {
  color: var(--color-neutral-400);
  font-size: 0.9375rem;
}

/* Content pages */
.content-page {
  padding: 4rem 0 6rem;
}

.content-page h2 {
  font-size: 1.5rem;
  margin-top: 3rem;
  margin-bottom: 0.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--color-neutral-200);
}

.content-page h3 {
  font-size: 1.0625rem;
  margin-top: 1.75rem;
  margin-bottom: 0.5rem;
  color: var(--color-primary-800);
}

.content-page ul {
  padding-left: 1.25rem;
  margin-bottom: 1rem;
}

.content-page li {
  margin-bottom: 0.4rem;
  font-size: 0.9375rem;
  color: var(--color-primary-600);
}

.content-page p {
  font-size: 0.9375rem;
  color: var(--color-primary-600);
}

/* Footer */
.footer {
  background: var(--color-primary-900);
  color: var(--color-neutral-400);
  padding: 4rem 0 2rem;
}

.footer__inner {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 2.5rem;
  margin-bottom: 2.5rem;
}

.footer__brand {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--color-neutral-0);
  letter-spacing: -0.03em;
  margin-bottom: 0.5rem;
}

.footer__tagline {
  font-size: 0.8125rem;
  color: var(--color-neutral-400);
  line-height: 1.6;
}

.footer__heading {
  font-family: var(--font-heading);
  color: var(--color-neutral-0);
  font-size: 0.8125rem;
  font-weight: 600;
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.footer__list {
  list-style: none;
}

.footer__list li {
  margin-bottom: 0.6rem;
}

.footer__list a {
  color: var(--color-neutral-400);
  font-size: 0.9375rem;
  transition: color var(--transition-base);
}

.footer__list a:hover {
  color: var(--color-neutral-0);
}

.footer__bottom {
  border-top: 1px solid var(--color-primary-800);
  padding-top: 1.5rem;
  text-align: center;
  font-size: 0.8125rem;
}

/* Hamburger toggle button — hidden on desktop */
.nav__toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  -webkit-tap-highlight-color: transparent;
}

.nav__toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-primary-900);
  border-radius: 2px;
  transition: all 0.25s ease;
}

.nav__toggle span + span {
  margin-top: 5px;
}

/* Animate hamburger → X when open */
.nav__toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav__toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav__toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ─── Mobile responsive (< 768px) ─── */
@media (max-width: 768px) {
  /* Show hamburger button */
  .nav__toggle {
    display: block;
  }

  /* Mobile nav dropdown */
  .nav__links {
    display: none;
    flex-direction: column;
    gap: 0;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-neutral-0);
    border-bottom: 1px solid var(--color-neutral-200);
    box-shadow: 0 8px 24px rgba(15, 23, 42, 0.08);
    padding: 0.5rem 0;
  }

  .nav__links.is-open {
    display: flex;
  }

  .nav__links li {
    width: 100%;
  }

  .nav__links a {
    display: block;
    padding: 0.75rem 2rem;
    font-size: 1rem;
  }

  .nav__links a:hover {
    background: var(--color-neutral-50);
  }

  /* CTA button in mobile menu */
  .nav__links .btn--accent {
    margin: 0.5rem 1.5rem 1rem;
    text-align: center;
    padding: 0.75rem 1.5rem !important;
    font-size: 0.9375rem !important;
    border-radius: var(--radius-button);
  }

  .nav {
    position: sticky;
  }

  .nav__inner {
    position: relative;
  }

  /* Typography scale-down */
  h1 {
    font-size: 2rem;
    line-height: 1.25;
  }

  h2 {
    font-size: 1.5rem;
  }

  /* Container padding */
  .container,
  .container--narrow {
    padding: 0 1.25rem;
  }

  /* Grid single-column */
  .grid {
    grid-template-columns: 1fr;
  }

  /* Footer stack */
  .footer__inner {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }

  .footer {
    padding: 3rem 0 1.5rem;
  }

  /* Page header tighter */
  .page-header {
    padding: 2rem 0 1.75rem;
  }

  /* Content page tighter */
  .content-page {
    padding: 2.5rem 0 4rem;
  }
}