:root {
  /* Color Palette */
  --palette-white: #f8f9fa;
  --palette-black: #444;
  --palette-red: #9C1E25;
  --palette-teal: #255C5C;
  --palette-teal-alt: #366D6D;
  --palette-tan: #F4E2C3;

  --color-background: var(--palette-white);

  --color-header: var(--palette-teal);
  --color-header-alt: var(--palette-teal-alt);
  --color-header-text: var(--palette-tan);

  --color-header-logo-1-3: var(--palette-teal);
  --color-header-logo-2: var(--palette-red);

  --color-text: #333;
  --color-accent: #0077b6;

  --color-table-header: var(--palette-teal);
  --color-table-border: var(--palette-teal);
  --color-table-bg: var(--palette-white);
}

/* Global reset and structure */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body, html {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  background-color: var(--color-background);
  color: var(--color-text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

header {
  background-color: var(--color-header);
  color: var(--color-header-text);
  padding: 1rem;
  top: 0;
  position: sticky;
}

h1 {
  text-align: center;
}

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

.logo {
  font-size: 1.5rem;
  font-weight: bold;
}

.menu-toggle {
  background: none;
  border: none;
  color: var(--color-header-text);
  font-size: 2rem;
  cursor: pointer;
  display: none;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 1rem;
}

.nav-links li a {
  color: var(--color-header-text);
  text-decoration: none;
  font-weight: bold;
}

.tagline {
  margin-top: 0.5rem;
  font-style: italic;
  text-align: center;
}

.undecorated-link {
	text-decoration: none;
	color: inherit;
}

main {
  flex: 1;
  padding: 2rem;
}

section {
  margin: 0 auto;
  margin-bottom: 2rem;
  width: 740px;
  max-width: 100%;
}

.center-block {
  text-align: center;
}

.center-block table {
  margin: 0 auto;
}

.center-block p {
  font-size: 0.9em;
  margin-top: 4px;
  font-style: italic;
}

.footer {
  font-size: 0.8rem;
  font-family: inherit;
  background-color: var(--color-header);
  color: var(--color-header-text);
  text-align: center;
  padding: 1rem;
  position: sticky;
  bottom: 0;
}

/* Tables */
table {
  border-collapse: collapse;
  background-color: var(--color-table-bg);
  margin-top: 20px;
  align: center;
}

th, td {
  border: 1px solid var(--color-table-border);
  padding: 10px 15px;
  text-align: left;
}

th {
  background-color: var(--color-table-header);
  color: white;
}

tr:nth-child(even) {
  background-color: #f1f1f1;
}

/* Logo Colors */
.color-header-logo-2 {
  color: var(--color-header-logo-2);
}

.color-header-logo-1-3 {
  color: var(--color-header-logo-1-3);
}

.footnote {
  font-size: 0.8rem;
  font-variant: italic;
  font-family: inherit;
  margin-top: 5px;
}

#large-logo {
  display: block;
  margin: 1.5rem auto;
  width: 740px;
  max-width: 100%;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
  border: 1px solid gray;
}

/* Form */
form {
  max-width: 600px;
  margin: 2rem auto 0;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

input, textarea, button {
  padding: 0.75rem;
  border: 1px solid #ccc;
  border-radius: 5px;
  font-size: 1rem;
  font-family: inherit;
}

button {
  background-color: var(--color-header);
  color: var(--color-header-text);
  border: none;
  cursor: pointer;
  transition: background 0.3s ease;
}

button:hover {
  background-color: var(--color-header-alt);
}

/* Image container (coupons grid) */
.image-container {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  max-width: 740px;
  min-width: 300px;
  width: 100%;
  background: white;
  padding: 10px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
  margin: 5px auto;
}

.image-container img {
  width: calc(33.333% - 10px);
  height: auto;
  object-fit: cover;
  border-radius: 6px;
  cursor: pointer;
  transition: transform 0.2s ease;
}

.image-container img:hover {
  transform: scale(1.02);
}

/* Responsive menu */
@media (max-width: 768px) {
  .menu-toggle {
    display: block;
  }

  .nav-links {
    width: 100%;
    flex-direction: column;
    display: none;
    background-color: var(--color-header-alt);
    margin-top: 0.5rem;
  }

  .nav-links.active {
    display: flex;
  }

  .nav-links li {
    text-align: center;
    padding: 0.5rem 0;
  }

  #large-logo {
    width: 90%;
  }
}

/* --- Coupon Popup (Click-based, Centered) --- */
.coupon-popup {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  justify-content: center;
  align-items: center;
  z-index: 1000;
}

.coupon-popup.open {
  display: flex;
}

.coupon-popup img {
  width: 740px;
  max-width: 95vw;
  height: auto;
  border-radius: 8px;
  box-shadow: 0 0 25px rgba(0, 0, 0, 0.4);
  background: #fff;
  padding: 8px;
}

.popup-close {
  position: absolute;
  top: 16px;
  right: 20px;
  font-size: 28px;
  line-height: 1;
  background: transparent;
  color: #fff;
  border: none;
  cursor: pointer;
}

/* Prevent background scroll when modal is open */
body.modal-open {
  overflow: hidden;
}

/* --- Mobile: disable popup and make 1-per-row @ 90% width --- */
@media (max-width: 768px) {
  .coupon-popup {
    display: none !important;
  }

  .image-container {
    justify-content: center;
  }

  .image-container img {
    width: 90% !important;
    display: block;
    margin: 0 auto 10px;
  }
}