/**
 * SadMug - Artist Portfolio Homepage
 * Layout and Bento Grid Styles
 */

/* ==========================================================================
   Base & Reset
   ========================================================================== */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-family-base);
  font-weight: 400;
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: var(--line-height-normal);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

img,
svg {
  display: block;
  max-width: 100%;
}

a {
  color: var(--color-link);
  transition: color var(--transition-base);
}

a:hover {
  color: var(--color-red);
}

/* Material Symbols Sharp configuration */
.material-symbols-sharp {
  font-family: var(--font-family-icon);
  font-weight: normal;
  font-style: normal;
  font-size: 24px;
  line-height: 1;
  letter-spacing: normal;
  text-transform: none;
  display: inline-block;
  white-space: nowrap;
  word-wrap: normal;
  direction: ltr;
  -webkit-font-feature-settings: 'liga';
  -webkit-font-smoothing: antialiased;
  font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
}

/* ==========================================================================
   Layout Wrapper
   ========================================================================== */

.page-wrapper {
  width: 100%;
  max-width: var(--container-max-width);
  margin-left: auto;
  margin-right: auto;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

/* ==========================================================================
   Navbar
   Sharp bordered navigation matching Frame 1 in Figma
   ========================================================================== */

.site-header {
  width: 100%;
  border-bottom: var(--border-sharp);
  background-color: var(--color-bg);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  display: flex;
  align-items: stretch;
  justify-content: space-between;
  height: 100px;
  padding-left: var(--content-padding-x);
}

.brand-wrap {
  display: flex;
  align-items: center;
  padding: 12px 0;
}

.brand-link {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  color: inherit;
  border-radius: var(--radius-none);
}

.brand-link:hover {
  color: inherit;
}

.brand-link:focus-visible {
  outline: var(--focus-ring);
  outline-offset: var(--focus-offset);
}

/* Burger button: hidden on desktop */
.burger-btn {
  display: none;
}

.site-nav {
  display: flex;
  align-items: stretch;
  height: 100%;
}

.nav-list {
  display: flex;
  align-items: stretch;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-item {
  display: flex;
  align-items: stretch;
}

.nav-link {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 28px;
  font-family: var(--font-family-base);
  font-size: var(--font-size-nav);
  color: var(--color-charcoal);
  text-decoration: none;
  white-space: nowrap;
  border-left: var(--border-sharp);
  border-radius: var(--radius-none);
  transition: background-color var(--transition-base), color var(--transition-base);
}

.nav-link:hover {
  background-color: var(--color-charcoal);
  color: var(--color-cream);
}

/* Active navigation state: Home */
.nav-link.active,
.nav-link[aria-current="page"] {
  color: var(--color-active);
  font-weight: 500;
}

.nav-link.active:hover,
.nav-link[aria-current="page"]:hover {
  background-color: var(--color-red);
  color: var(--color-cream);
}

.nav-link:focus-visible {
  outline: var(--focus-ring);
  outline-offset: -2px;
}

/* ==========================================================================
   Main Bento Section
   ========================================================================== */

.main-content {
  flex-grow: 1;
  padding: clamp(1.5rem, 3vw, 2.5rem) var(--content-padding-x);
}

.bento-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--bento-gap);
  grid-auto-rows: var(--bento-row-height);
  border-top: var(--border-sharp);
  border-left: var(--border-sharp);
  /* Do not use grid-auto-flow: dense - DOM order equals visual order */
}

/* ==========================================================================
   Bento Tile
   ========================================================================== */

.bento-tile {
  position: relative;
  overflow: hidden;
  border: none;
  border-right: var(--border-sharp);
  border-bottom: var(--border-sharp);
  border-radius: var(--radius-none);
  background-color: var(--color-bg);
  display: block;
  width: 100%;
  height: 100%;
  padding: 0;
  margin: 0;
  text-decoration: none;
  color: inherit;
  cursor: pointer;
  outline: none;
  transition: outline var(--transition-fast);
}

/* Button reset for lightbox trigger tiles */
button.bento-tile {
  appearance: none;
  font-family: inherit;
  border: none;
  border-right: var(--border-sharp);
  border-bottom: var(--border-sharp);
}

.bento-tile:focus-visible {
  outline: 2px solid var(--color-red);
  outline-offset: -2px;
  z-index: 3;
}

.bento-tile:hover {
  outline: 2px solid var(--color-red);
  outline-offset: -2px;
  z-index: 2;
  color: inherit;
}

.tile-media {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform var(--transition-base);
}

.bento-tile:hover .tile-media {
  transform: scale(1.02);
}

/* Column and Row Span Utilities */
.col-span-1 { grid-column: span 1; }
.col-span-2 { grid-column: span 2; }
.col-span-3 { grid-column: span 3; }
.col-span-4 { grid-column: span 4; }
.col-span-5 { grid-column: span 5; }

.row-span-1 { grid-row: span 1; }
.row-span-2 { grid-row: span 2; }
.row-span-3 { grid-row: span 3; }

/* ==========================================================================
   Site Footer
   ========================================================================== */

.site-footer {
  width: 100%;
  margin-top: auto;
  border-top: var(--border-sharp);
  background-color: var(--color-bg);
  padding: 0;
}

.footer-content {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 24px var(--content-padding-x);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-md);
  flex-wrap: wrap;
  font-size: 0.9rem;
  color: var(--color-charcoal);
}

.footer-links {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-link {
  color: var(--color-link);
  text-decoration: none;
  border-radius: var(--radius-none);
  transition: color var(--transition-base);
}

.footer-link:hover {
  color: var(--color-red);
}

.footer-link:focus-visible {
  outline: var(--focus-ring);
  outline-offset: var(--focus-offset);
}

/* ==========================================================================
   Responsive Breakpoints
   - Desktop: 5 columns
   - Tablet: 3 columns (clamp colSpan <= 3)
   - Phone: 2 columns (clamp colSpan <= 2)
   ========================================================================== */

@media (max-width: 1024px) {
  .bento-grid {
    grid-template-columns: repeat(3, 1fr);
    grid-auto-rows: 230px;
  }

  /* Clamp spans to max 3 columns */
  .col-span-4,
  .col-span-5 {
    grid-column: span 3;
  }
}

@media (max-width: 768px) {
  .nav-container {
    height: 64px;
    padding-left: var(--content-padding-x);
    position: relative;
  }

  .brand-wrap {
    padding: 0;
  }

  .brand-logo {
    height: 36px;
    width: auto;
  }

  /* Progressive enhancement: burger button active when JS is ready */
  .site-header.js-nav-ready .burger-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    padding: 0;
    margin: 0;
    background-color: var(--color-bg);
    color: var(--color-charcoal);
    border: none;
    border-left: var(--border-sharp);
    border-radius: var(--radius-none);
    cursor: pointer;
    transition: background-color var(--transition-base), color var(--transition-base);
  }

  .site-header.js-nav-ready .burger-btn:hover {
    background-color: var(--color-charcoal);
    color: var(--color-cream);
  }

  .site-header.js-nav-ready .burger-btn:focus-visible {
    outline: var(--focus-ring);
    outline-offset: -2px;
  }

  .burger-icon {
    display: block;
  }

  .burger-icon-close {
    display: none;
  }

  .burger-btn[aria-expanded="true"] .burger-icon-open {
    display: none;
  }

  .burger-btn[aria-expanded="true"] .burger-icon-close {
    display: block;
  }

  /* Dropdown panel directly under the header */
  .site-header.js-nav-ready .site-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    height: auto !important;
    background-color: var(--color-bg);
    border-bottom: var(--border-sharp);
    box-shadow: 0 8px 16px rgba(35, 35, 35, 0.08);
    z-index: 99;
  }

  .site-header.js-nav-ready .site-nav.is-open {
    display: block;
  }

  /* Fallback without JavaScript: nav stays visible as a normal stacked list */
  .site-header:not(.js-nav-ready) .burger-btn {
    display: none;
  }

  .site-header:not(.js-nav-ready) .nav-container {
    height: auto;
    flex-direction: column;
    padding-left: 0;
  }

  .site-header:not(.js-nav-ready) .brand-wrap {
    padding: 16px var(--content-padding-x);
    border-bottom: var(--border-sharp);
    width: 100%;
  }

  .site-header:not(.js-nav-ready) .site-nav {
    display: block;
    width: 100%;
    height: auto;
    background-color: var(--color-bg);
  }

  /* Nav list & items in mobile stacked panel */
  .nav-list {
    display: flex;
    flex-direction: column;
    width: 100%;
    margin: 0;
    padding: 0;
    background-color: var(--color-bg);
  }

  .nav-item {
    width: 100%;
    display: flex;
    background-color: var(--color-bg);
  }

  .nav-link {
    width: 100%;
    min-height: 48px;
    padding: 14px var(--content-padding-x);
    justify-content: flex-start;
    border-left: none;
    border-bottom: var(--border-sharp);
    border-radius: var(--radius-none);
    font-size: var(--font-size-nav);
    background-color: var(--color-bg);
  }

  .nav-item:last-child .nav-link {
    border-bottom: none;
  }
}

@media (max-width: 640px) {
  .bento-grid {
    display: flex;
    flex-direction: column;
    grid-template-columns: none;
    grid-auto-rows: auto;
    gap: 0;
    border-top: var(--border-sharp);
    border-left: var(--border-sharp);
    border-right: var(--border-sharp);
    border-bottom: none;
  }

  .bento-tile,
  button.bento-tile,
  .col-span-1,
  .col-span-2,
  .col-span-3,
  .col-span-4,
  .col-span-5,
  .row-span-1,
  .row-span-2,
  .row-span-3 {
    display: block;
    width: 100% !important;
    height: auto !important;
    grid-column: auto !important;
    grid-row: auto !important;
    border: none;
    border-bottom: var(--border-sharp);
  }

  .tile-media {
    width: 100%;
    height: auto !important;
    max-width: 100%;
    object-fit: unset !important;
    object-position: unset !important;
    display: block;
  }

  .bento-tile:hover .tile-media {
    transform: none;
  }

  .tile-badge {
    opacity: 1 !important;
  }

  .footer-content {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-sm);
  }
}