/* ==========================================================================
   Main Layout & Shared Styles
   Global styles applied across all pages of the Kizuna website.
   Structure:
   - Base Setup (HTML, Body, Global Backgrounds)
   - Navigation (Header, Desktop Menu, Dropdowns, Mobile Menu)
   - Main Content & Sections (Titles, Spacing, Layouts)
   - Shared Components (Banners)
   - Footer
   - Media Queries (Responsive)
   - Utility Classes
   ========================================================================== */

/* ==========================================================================
   1. Base Setup
   ========================================================================== */

html {
  scroll-behavior: smooth;
}

html,
body {
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  margin: 0;
  min-height: 100vh;
}

body {
  background-attachment: scroll;
  background-image: linear-gradient(to bottom,
      var(--c-pale-oak) 0%,
      var(--c-pale-oak) 5%,
      var(--c-parchment) 100%);
  background-repeat: no-repeat;
  background-size: cover;
  padding: 0;
  position: relative;
}

/* Texture Overlays */
body::before {
  background-color: var(--c-faded-copper);
  content: '';
  height: 100%;
  left: 0;
  mix-blend-mode: multiply;
  opacity: 0.3;
  pointer-events: none;
  position: fixed;
  top: 0;
  width: 100%;
  z-index: -10;
}

body::after {
  -webkit-mask-image: linear-gradient(to right, black 0%, black calc(50% - 32.5rem), transparent calc(50% - 32.5rem), transparent calc(50% + 32.5rem), black calc(50% + 32.5rem), black 100%);
  background-image: url('/static/patterns/shippo.svg?v=5');
  background-repeat: repeat;
  background-size: 3.75rem 3.75rem;
  content: '';
  height: 100%;
  left: 0;
  mask-image: linear-gradient(to right, black 0%, black calc(50% - 32.5rem), transparent calc(50% - 32.5rem), transparent calc(50% + 32.5rem), black calc(50% + 32.5rem), black 100%);
  opacity: 0.2;
  pointer-events: none;
  position: fixed;
  top: 0;
  width: 100%;
  z-index: -9;
}

a {
  color: inherit;
  text-decoration: none;
}

/* ==========================================================================
   2. Navigation (Header & Menus)
   ========================================================================== */

header {
  -webkit-backdrop-filter: blur(0.75rem);
  align-items: center;
  backdrop-filter: blur(0.75rem);
  background-color: rgba(212, 194, 168, 0.82);
  border-bottom: 0.0625rem solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 0.25rem 0.9375rem rgba(0, 0, 0, 0.05);
  color: var(--c-carbon-black);
  display: flex;
  justify-content: space-between;
  min-height: 4rem;
  position: sticky;
  top: 0;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  width: 100%;
  z-index: 1000;
}

header.scrolled {
  background-color: rgba(212, 194, 168, 0.9);
  padding: 0.25rem 0;
}

/* Desktop Navigation Items */
nav {
  align-items: center;
  display: flex;
  justify-content: center;
  margin: 0 1.5rem 0 0;
}

nav span {
  margin: 0 2.5rem;
}

.main-menu-item {
  align-items: center;
  border-radius: 0.25rem;
  display: inline-flex;
  font-size: 1rem;
  letter-spacing: 0.05em;
  position: relative;
  text-transform: uppercase;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.main-menu-item>a {
  color: inherit;
  cursor: pointer;
  display: inline-block;
  padding: 0.5rem 1rem;
  text-decoration: none;
  width: 100%;
}

.main-menu-item::after {
  background-color: var(--c-coffee-bean);
  bottom: 0;
  content: '';
  height: 0.125rem;
  left: 50%;
  position: absolute;
  transform: translateX(-50%);
  transition: width 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  width: 0;
}

.main-menu-item:hover {
  background-color: transparent;
  color: var(--c-coffee-bean);
}

.main-menu-item:hover::after {
  width: 80%;
}

.main-menu-item.active {
  background-color: transparent;
  color: var(--c-coffee-bean);
  font-weight: bold;
}

.main-menu-item.active::after {
  width: 100%;
}

/* Dropdown Sub-menu */
.dropdown-content {
  -webkit-backdrop-filter: blur(0.75rem) saturate(150%);
  backdrop-filter: blur(0.75rem) saturate(150%);
  background-color: rgba(243, 240, 235, 0.8);
  border: 0.0625rem solid rgba(166, 127, 91, 0.2);
  border-radius: 0.5rem;
  box-shadow: 0 0.5rem 1.5rem 0 rgba(0, 0, 0, 0.15);
  display: flex;
  flex-direction: column;
  left: 50%;
  min-width: 11.25rem;
  opacity: 0;
  padding: 0.5rem 0;
  position: absolute;
  top: 100%;
  transform: translate3d(-50%, 0.625rem, 0);
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  visibility: hidden;
  will-change: transform, opacity;
  z-index: 100;
}

.dropdown:hover .dropdown-content {
  opacity: 1;
  transform: translate3d(-50%, 0, 0);
  visibility: visible;
}

.dropdown-content a {
  color: var(--c-carbon-black);
  display: block;
  font-size: 1.1rem;
  letter-spacing: 0;
  padding: 0.75rem 1.25rem;
  text-align: center;
  text-decoration: none;
  text-transform: none;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.dropdown-content a:hover {
  background-color: rgba(107, 79, 58, 0.05);
  color: var(--c-coffee-bean);
}

/* Logo & Branding */
.logo {
  margin: 0 1rem 0 0.5rem;
}

.logo-container {
  align-items: center;
  display: flex;
  gap: 0.25rem;
}

.logo-img {
  height: 5rem;
  transition: height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

header.scrolled .logo-img {
  height: 4rem;
}

.logo-text {
  font-size: 1.1rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  white-space: nowrap;
}

/* Mobile Burger Menu */
.burger-menu {
  background: none;
  border: none;
  cursor: pointer;
  display: none;
  margin-right: 1.5rem;
  padding: 0;
}

.burger-menu img {
  height: 1.75rem;
  width: 1.75rem;
}

/* ==========================================================================
   3. Main Content & Sections
   ========================================================================== */

main {
  flex: 1 0 auto;
  margin: 0 auto;
  position: relative;
  width: 100%;
}

main::before {
  background: linear-gradient(to right,
      rgba(107, 79, 58, 0.5) 0%,
      rgba(107, 79, 58, 0) calc(50% - 32.5rem),
      rgba(107, 79, 58, 0) calc(50% + 32.5rem),
      rgba(107, 79, 58, 0.5) 100%);
  content: '';
  height: 100%;
  left: 0;
  pointer-events: none;
  position: fixed;
  top: 0;
  width: 100%;
  z-index: -1;
}

/* Unified Section Spacing Rules */
section {
  display: flex;
  flex-direction: column;
  padding: 0 0 var(--section-spacing) 0;
  width: 100%;
}

section:first-of-type {
  padding-top: 4rem;
}

/* Generic Section Content Layout */
.section-content {
  display: flex;
  font-family: inherit;
  font-size: 0.9rem;
}

/* Page Titles & Headers */
h1 {
  display: flex;
  justify-content: center;
  margin: 0 auto;
}

.section-title,
.api-items-container>h1 {
  align-items: center;
  color: var(--c-carbon-black);
  display: flex;
  flex-direction: column;
  font-family: var(--font-serif);
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-style: italic;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: 4rem;
  text-shadow: none;
  text-transform: uppercase;
}

/* Decorative Accents for Titles */
.section-title::after,
.api-items-container>h1::after {
  background-position: top center;
  background-repeat: no-repeat;
  background-size: contain;
  content: '';
  display: block;
  height: 3.125rem;
  opacity: 0.8;
  width: 15.625rem;
}

.section-title::after {
  background-image: url('/static/patterns/geometric-accent.svg');
  margin-top: -0.625rem;
}

/* Specific Page Overrides in Main */
section.location .section-content {
  display: flex;
  justify-content: space-between;
}

section.location .contacts p {
  text-align: center;
}

/* ==========================================================================
   4. Shared Component: Banner
   ========================================================================== */

.banner-with-text {
  align-items: center;
  display: flex;
  justify-content: center;
  position: relative;
}

.banner-with-text .menu-banner {
  aspect-ratio: 16 / 5;
  display: block;
  filter: brightness(0.5);
  margin-bottom: 2rem;
  object-fit: cover;
  object-position: center center;
  width: 100%;
}

.banner-with-text h1 {
  color: var(--c-parchment);
  font-family: var(--font-serif);
  font-size: clamp(3.5rem, 10vw, 7rem);
  font-style: italic;
  font-weight: 500;
  margin: 0;
  position: absolute;
  text-shadow: 0 0.25rem 0.9375rem rgba(0, 0, 0, 0.4);
  text-transform: uppercase;
  width: 90%;
  text-align: center;
}

@media (max-width: 47.5rem) {
  .banner-with-text h1 {
    font-size: clamp(2.5rem, 12vw, 4rem);
  }
}

/* ==========================================================================
   5. Footer
   ========================================================================== */

footer {
  background-color: var(--c-carbon-black);
  color: var(--c-parchment);
  margin-top: var(--section-spacing);
  padding: 2.5rem 0;
  width: 100%;
}

.footer-container {
  align-items: start;
  display: grid;
  gap: 2rem;
  grid-template-columns: 1fr 1fr;
  margin: 0 auto;
  max-width: 65rem;
  padding: 0;
}

.footer-column {
  text-align: center;
}

.footer-column h3 {
  color: var(--c-faded-copper);
  font-size: 1.1rem;
  letter-spacing: 0.1em;
  margin-bottom: 1.25rem;
  text-align: center;
  text-transform: uppercase;
}

.footer-column p {
  line-height: 1.7;
  margin: 0.5rem 0;
  opacity: 0.9;
}

.footer-image {
  align-items: center;
  display: flex;
  justify-content: center;
}

.footer-image img {
  filter: brightness(1.1);
  height: auto;
  max-width: 15rem;
}

.footer-map {
  border-radius: 0.5rem;
  margin-top: 1.25rem;
  max-width: 15rem;
  width: 100%;
}

/* ==========================================================================
   6. Responsive Media Queries
   ========================================================================== */

@media (max-width: 47.5rem) {
  .footer-container {
    gap: 3rem;
    grid-template-columns: 1fr;
  }

  .footer-image img {
    max-width: 12.5rem;
  }

  .burger-menu {
    display: block;
    z-index: 1001;
  }

  /* When the menu is open, ensure the header is on top of other page content */
  header.menu-open {
    z-index: 1002;
  }

  nav {
    /* Full-screen overlay menu */
    -webkit-backdrop-filter: blur(1.25rem);
    align-items: center;
    backdrop-filter: blur(1.25rem);
    background-color: rgba(212, 194, 168, 0.96);
    display: flex;
    flex-direction: column;
    height: 100vh;
    justify-content: center;
    left: 0;
    margin: 0;
    opacity: 0;
    pointer-events: none;
    position: fixed;
    top: 0;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    visibility: hidden;
    width: 100%;
  }

  header.menu-open nav {
    opacity: 1;
    pointer-events: auto;
    visibility: visible;
  }

  header.menu-open .main-menu-item {
    flex-direction: column;
    font-size: 2.25rem;
    padding: 1.25rem 0;
    text-align: center;
  }

  header.menu-open .main-menu-item>a {
    text-align: center;
  }

  header.menu-open .dropdown:hover .dropdown-content,
  header.menu-open .dropdown-content {
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
    background-color: transparent;
    border: none;
    box-shadow: none;
    opacity: 1;
    padding: 0.5rem 0 0 0;
    position: static;
    transform: none;
    transition: none;
    visibility: visible;
    width: 100%;
  }

  header.menu-open .dropdown-content a {
    font-size: 1.65rem;
    padding: 0.5rem 0;
  }

  nav span {
    margin: 0;
  }
}

/* ==========================================================================
   7. Utility Classes
   ========================================================================== */

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

.glass-effect {
  -webkit-backdrop-filter: blur(0.75rem);
  backdrop-filter: blur(0.75rem);
  background-color: rgba(243, 240, 235, 0.85);
  border: 0.0625rem solid rgba(255, 255, 255, 0.3);
}

.text-shadow-sm {
  text-shadow: 0 0.0625rem 0.125rem rgba(0, 0, 0, 0.1);
}

.hidden {
  display: none !important;
}

/* Floating Scroll to Top Button */
.nav-up-button {
  align-items: center;
  background-color: var(--c-parchment);
  border: 1px solid rgba(166, 127, 91, 0.3);
  border-radius: 50%;
  bottom: 2rem;
  box-shadow: 0 0.25rem 0.75rem rgba(0, 0, 0, 0.15);
  cursor: pointer;
  display: flex;
  height: 3.5rem;
  justify-content: center;
  opacity: 0;
  padding: 0;
  pointer-events: none;
  position: fixed;
  right: 2rem;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  visibility: hidden;
  width: 3.5rem;
  z-index: 1000;
}

.nav-up-button.visible {
  opacity: 1;
  pointer-events: auto;
  visibility: visible;
}

.nav-up-button img {
  height: 1.5rem;
  opacity: 0.8;
  transition: transform 0.3s ease;
  width: 1.5rem;
}

.nav-up-button:hover {
  background-color: white;
  box-shadow: 0 0.5rem 1.5rem rgba(166, 127, 91, 0.25);
  transform: translateY(-0.25rem);
}

.nav-up-button:hover img {
  transform: translateY(-2px);
}

@media (max-width: 37.5rem) {
  .nav-up-button {
    bottom: 1.5rem;
    height: 3rem;
    right: 1.25rem;
    width: 3rem;
  }
}