/* =========================================================
   DESIGN TOKENS
   ========================================================= */
:root {
  /* Fonts */
  --font-base: "Lato", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-display: "Atma", var(--font-base);

  /* Spacing scale */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 16px;
  --space-4: 24px;

  /* Radius */
  --radius-sm: 8px;
  --radius-md: 10px;
  --radius-lg: 12px;

  /* Shadows */
  --shadow-sm: 0 0 10px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 6px 18px rgba(0,0,0,0.08);
  --shadow-lg: 0 10px 24px rgba(0,0,0,0.12);

  /* ✅ Permanent site background (kept exactly as requested) */
  --color-bg: rgb(123, 162, 128); /* #7BA280 */

  /* Theme (Green by default) */
  --color-primary: #31572C;
  --color-text: #0E2010;
  --color-surface: #ffffff;
  --color-accent: #90A955;
  --color-muted-text: color-mix(in oklab, var(--color-text) 80%, transparent);

  /* System/supporting tokens */
  --color-surface-muted: #e5e5e5;            /* soft gray blocks */
  --color-border: #000000;                   /* used where plain black was used */
  --color-info: #1d4ed8;                     /* “blue” headings/icons */
  --color-outline: color-mix(in oklab, var(--color-primary) 6%, transparent);
  --color-hover: color-mix(in oklab, var(--color-primary) 8%, transparent);
  --color-link: var(--color-primary);
  --color-link-hover: color-mix(in oklab, var(--color-primary) 85%, black);
}

/* Optional theme override (still keeps the base bg!) */
:root[data-theme="green"] {
  --color-primary: #31572C;
  --color-accent: #90A955;
  --color-text: #0E2010;
}

/* Optional orange theme */
:root[data-theme="orange"] {
  --color-primary: #E2711D;
  --color-accent: #FF9505;
  --color-text: #2A1A12;
  --color-outline: color-mix(in oklab, var(--color-primary) 8%, transparent);
  --color-hover: color-mix(in oklab, var(--color-primary) 10%, transparent);
}

/* =========================================================
   GLOBAL / BASE
   ========================================================= */
* { box-sizing: border-box; }

html, body {
  height: 100%;
}

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-base);
  line-height: 1.5;
  margin: 0;
}

/* Utility container */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 var(--space-3);
}

/* Index top */
.index_top {
  text-align: center;
  text-decoration: overline;
  color: color-mix(in oklab, var(--color-primary) 70%, white);
}

/* =========================================================
   HEADER / NAV
   ========================================================= */
.header-container {
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-3) calc(var(--space-3) + var(--space-1)); /* 16px 20px */
}

.logo img {
  width: 120px;
  height: auto;
}

.main-nav {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: calc(var(--space-2) + var(--space-1)); /* 20px */
  padding: var(--space-2) 0;
}

.main-nav a,
.auth-links a {
  text-decoration: none;
  padding: var(--space-2) calc(var(--space-2) + 4px);
  border-radius: var(--radius-md);
  transition: background-color 0.25s ease, color 0.25s ease, transform 0.08s ease;
  color: inherit;
}

.main-nav a:hover,
.auth-links a:hover {
  color: var(--color-text);
  background-color: var(--color-hover);
}

/* Buttons */
.button {
  display: inline-block;
  background-color: var(--color-surface);
  color: var(--color-text);
  text-align: center;
  padding: var(--space-2) calc(var(--space-2) + 6px);
  border-radius: var(--radius-md);
  transition: background-color 0.25s ease, color 0.25s ease, transform 0.08s ease;
  box-shadow: var(--shadow-sm);
}

.button:hover {
  background-color: var(--color-surface);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.button.signup {
  font-weight: 600;
  outline: 2px solid var(--color-outline);
}

/* Auth links: column on desktop; row on mobile in media query */
.auth-links {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: calc(var(--space-1) + 2px);
}

.auth-links a {
  margin-top: var(--space-1);
  text-decoration: none;
}

/* =========================================================
   HERO
   ========================================================= */
.hero {
  display: flex;
  flex-wrap: wrap;
  gap: calc(var(--space-3) - 8px);
  width: 100%;
  align-items: center;
  padding: calc(var(--space-3) * 2) 0;
}

.hero_left {
  flex: 1 1 320px;
  max-width: 520px;
}

.hero_left h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3.5vw, 3rem);
  margin: 0 0 calc(var(--space-1) + 4px) 0;
}

.hero_tagline {
  font-size: 1.1rem;
  margin: 0 0 var(--space-2) 0;
}

.hero_cta {
  display: flex;
  gap: calc(var(--space-2) - 2px);
  margin: calc(var(--space-1) + 2px) 0 var(--space-2) 0;
}

.hero_points {
  margin: 0;
  padding-left: var(--space-3);
}

.hero_right {
  flex: 1 1 420px;
  display: flex;
  flex-direction: column;
}

.hero_right_t_img {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  grid-auto-rows: 120px;
  grid-auto-flow: dense;
  gap: calc(var(--space-2) - 2px);
}

.hero_right_t_img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

/* Size variants to create visual variety */
.hero_right_t_img img.wide { grid-column: span 2; }
.hero_right_t_img img.tall { grid-row: span 2; }
.hero_right_t_img img.big  { grid-column: span 2; grid-row: span 2; }

.hero_right_b { margin-top: var(--space-2); }

/* =========================================================
   SIGNUP FORM
   ========================================================= */
.signup-form {
  display: flex;
  flex-direction: column;
  background-color: color-mix(in oklab, var(--color-accent) 25%, white);
  padding: var(--space-3);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  width: min(500px, 92%);
  margin: var(--space-4) auto;
}

/* =========================================================
   CONTACT SECTION
   ========================================================= */
.contact-us {
  background-color: var(--color-surface-muted);
  width: 60%;
  text-align: center;
  margin: auto;
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.contact-us h2 {
  background-color: var(--color-info);
  color: #fff;
  margin: 0;
  padding: calc(var(--space-3) - 1px);
  border-left: 3px solid var(--color-border);
  border-right: 3px solid var(--color-border);
  border-top: 3px solid var(--color-border);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-right: 3px solid var(--color-border);
  border-left: 2px solid var(--color-border);
  border-bottom: 3px solid var(--color-border);
  border-top: 3px solid var(--color-border);
}

.contact-box {
  padding: var(--space-2) + 2px;
  border-left: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.contact-box ion-icon {
  font-size: 36px;
  margin-bottom: var(--space-2);
  border-bottom: 1px solid var(--color-border);
}

ion-icon[name="logo-facebook"] {
  color: var(--color-info);
  outline: var(--color-border);
}

/* =========================================================
   FOOTER
   ========================================================= */
#copy { color: var(--color-info); }

/* =========================================================
   BLOG PREVIEW CARDS
   ========================================================= */
.blog-preview-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: calc(var(--space-3) + 2px); /* 18px */
  margin: var(--space-4) auto;
}

.blog-card {
  background: var(--color-surface);
  color: inherit;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  transition: transform 0.08s ease, box-shadow 0.25s ease;
}

.blog-card:hover,
.blog-card:focus-within {
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

.blog-card > a:first-child {
  display: block;
  aspect-ratio: 16 / 9;
  overflow: hidden;
}

.blog-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.blog-card h2 {
  font-size: 1.1rem;
  line-height: 1.3;
  margin: var(--space-2) var(--space-2) calc(var(--space-1) + 2px);
}

.blog-card h2 a {
  color: inherit;
  text-decoration: none;
}

.blog-card h2 a:hover { text-decoration: underline; }

.blog-card p {
  margin: 0 var(--space-2) var(--space-2);
  color: var(--color-muted-text);
}

/* CTA link styled to match your button/hover vibe */
.blog-card .read-more {
  display: inline-block;
  margin: 0 var(--space-2) calc(var(--space-2) + 2px);
  padding: var(--space-2) calc(var(--space-2) + 4px);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: var(--color-primary);
  text-decoration: none;
  outline: 1px solid var(--color-outline);
  transition: background-color 0.25s ease, color 0.25s ease, transform 0.08s ease;
}

.blog-card .read-more:hover,
.blog-card .read-more:focus {
  background-color: var(--color-hover);
  transform: translateY(-1px);
}

/* =========================================================
   LINKS
   ========================================================= */
a { color: var(--color-link); }
a:hover { color: var(--color-link-hover); }

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 768px) {
  .auth-links {
    flex-direction: row;
    align-items: center;
  }
}

@media (max-width: 420px) {
  .blog-preview-container { gap: calc(var(--space-2) - 2px); }
  .blog-card h2 { font-size: 1.05rem; }
}