/* ==========================================================================
   FLUID FOOTER UI SHELL - STYLES
   A configurable, themeable footer component for Savant Realms applications
   ========================================================================== */

/* ==========================================================================
   CSS CUSTOM PROPERTIES (THEME VARIABLES)
   ========================================================================== */

:root {
  /* Light theme — mirrors the header palette, 20% opacity */
  --sr-footer-bg: linear-gradient(135deg, rgba(247, 242, 232, 0.2), rgba(242, 247, 255, 0.2));
  --sr-footer-backdrop: blur(20px) saturate(160%);
  --sr-footer-surface: rgba(255, 255, 255, 0.18);
  --sr-footer-text: #1a1f2b;
  --sr-footer-text-secondary: #5b6572;
  --sr-footer-muted: #8b95a5;
  --sr-footer-accent: #ff6a3d;
  --sr-footer-border: rgba(26, 31, 43, 0.1);
  --sr-footer-shadow: 0 -4px 24px rgba(13, 18, 31, 0.06);
  --sr-footer-link-hover-bg: rgba(26, 31, 43, 0.05);
  --sr-footer-dropdown-shadow: 0 -8px 32px rgba(0, 0, 0, 0.12);

  /* Typography */
  --sr-footer-font-family: 'Space Grotesk', 'Avenir Next', 'Helvetica Neue',
    Arial, sans-serif;
  --sr-footer-font-size-xs: 0.6875rem;
  --sr-footer-font-size-sm: 0.75rem;
  --sr-footer-font-size-base: 0.8125rem;

  /* Compact spacing */
  --sr-footer-spacing-xs: 0.2rem;
  --sr-footer-spacing-sm: 0.375rem;
  --sr-footer-spacing-md: 0.75rem;
  --sr-footer-spacing-lg: 1rem;
  --sr-footer-spacing-xl: 1.25rem;

  /* Border radius */
  --sr-footer-radius-sm: 4px;
  --sr-footer-radius-md: 8px;
  --sr-footer-radius-lg: 12px;

  /* Transitions */
  --sr-footer-transition-fast: 150ms ease;
  --sr-footer-transition-normal: 200ms ease;

  /* Fixed height (single row) */
  --sr-footer-height: 52px;
  --sr-footer-offset: var(--sr-footer-height);
}

@media (max-width: 768px) {
  :root {
    --sr-footer-height: 88px;
    --sr-footer-offset: var(--sr-footer-height);
  }
}

@media (max-width: 480px) {
  :root {
    --sr-footer-height: 132px;
    --sr-footer-offset: var(--sr-footer-height);
  }
}

/* Dark theme — mirrors the header dark palette, 20% opacity */
[data-theme='dark'] {
  --sr-footer-bg: linear-gradient(135deg, rgba(11, 16, 32, 0.2), rgba(15, 23, 42, 0.2));
  --sr-footer-surface: rgba(15, 23, 42, 0.18);
  --sr-footer-text: #f1f5f9;
  --sr-footer-text-secondary: #a8b3cc;
  --sr-footer-muted: #64748b;
  --sr-footer-border: rgba(148, 163, 184, 0.14);
  --sr-footer-shadow: 0 -4px 24px rgba(2, 6, 23, 0.3);
  --sr-footer-link-hover-bg: rgba(148, 163, 184, 0.08);
  --sr-footer-dropdown-shadow: 0 -8px 32px rgba(0, 0, 0, 0.4);
}

/* System prefers dark and no user override */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --sr-footer-bg: linear-gradient(135deg, rgba(11, 16, 32, 0.2), rgba(15, 23, 42, 0.2));
    --sr-footer-surface: rgba(15, 23, 42, 0.18);
    --sr-footer-text: #f1f5f9;
    --sr-footer-text-secondary: #a8b3cc;
    --sr-footer-muted: #64748b;
    --sr-footer-border: rgba(148, 163, 184, 0.14);
    --sr-footer-shadow: 0 -4px 24px rgba(2, 6, 23, 0.3);
    --sr-footer-link-hover-bg: rgba(148, 163, 184, 0.08);
    --sr-footer-dropdown-shadow: 0 -8px 32px rgba(0, 0, 0, 0.4);
  }
}

body {
  padding-bottom: var(--sr-footer-offset, var(--sr-footer-height));
}

/* ==========================================================================
   BASE — FIXED FOOTER
   ========================================================================== */

.sr-footer {
  font-family: var(--sr-footer-font-family);
  font-size: var(--sr-footer-font-size-base);
  color: var(--sr-footer-text);
  background: var(--sr-footer-bg);
  -webkit-backdrop-filter: var(--sr-footer-backdrop);
  backdrop-filter: var(--sr-footer-backdrop);
  border-top: 1px solid var(--sr-footer-border);
  box-shadow: var(--sr-footer-shadow);
  width: 100%;
  box-sizing: border-box;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 40;
  min-height: var(--sr-footer-height);
  padding: var(--sr-footer-spacing-sm) 0;
}

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

.sr-footer__container {
  max-width: 1400px;
  width: 100%;
  height: 100%;
  margin: 0 auto;
  padding: 0 var(--sr-footer-spacing-xl);
  display: flex;
  flex-direction: column;
  align-items: stretch;
  justify-content: center;
  gap: 0;
}

/* ==========================================================================
   LAYOUT — TOP ROW (WRAPS ON NARROW)
   ========================================================================== */

.sr-footer__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sr-footer-spacing-lg);
  width: 100%;
  flex-wrap: wrap;
  min-height: 0;
}

/* ==========================================================================
   MAIN ROW — COMPANY (LEFT) + PAGE LINKS (RIGHT) WHEN SPACE
   ========================================================================== */

.sr-footer__main {
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--sr-footer-spacing-lg);
  flex-shrink: 0;
  min-width: 0;
}

/* ==========================================================================
   COMPANY INFO — COMPACT INLINE
   ========================================================================== */

.sr-footer__company {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: var(--sr-footer-spacing-md);
  flex-shrink: 0;
  min-width: 0;
}

/* Group: name + VAT (stack on narrow) */
.sr-footer__company-legal {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: var(--sr-footer-spacing-md);
}

.sr-footer__company-name {
  font-weight: 600;
  font-size: var(--sr-footer-font-size-sm);
  color: var(--sr-footer-text);
}

.sr-footer__company-vat {
  font-size: var(--sr-footer-font-size-xs);
  color: var(--sr-footer-muted);
}

.sr-footer__company-contact {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: var(--sr-footer-spacing-md);
}

.sr-footer__company-address,
.sr-footer__company-info {
  font-size: var(--sr-footer-font-size-xs);
  color: var(--sr-footer-muted);
}

/* ==========================================================================
   LINKS
   ========================================================================== */

.sr-footer__link {
  color: var(--sr-footer-muted);
  text-decoration: none;
  font-size: var(--sr-footer-font-size-xs);
  transition: color var(--sr-footer-transition-fast);
}

.sr-footer__link:hover {
  color: var(--sr-footer-accent);
}

/* ==========================================================================
   STANDALONE LINKS — INLINE
   ========================================================================== */

.sr-footer__standalone-links {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: var(--sr-footer-spacing-md);
  flex-shrink: 0;
}

/* Groups of page links (e.g. Privacy+Careers | Contact+Status) */
.sr-footer__standalone-group {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: var(--sr-footer-spacing-md);
}

.sr-footer__standalone-link {
  color: var(--sr-footer-text-secondary);
  text-decoration: none;
  font-size: var(--sr-footer-font-size-xs);
  font-weight: 500;
  white-space: nowrap;
  transition: color var(--sr-footer-transition-fast);
}

.sr-footer__standalone-link:hover {
  color: var(--sr-footer-accent);
}

/* ==========================================================================
   LANGUAGE SELECTOR
   ========================================================================== */

.sr-footer__language-selector {
  position: relative;
  flex-shrink: 0;
}

.sr-footer__language-trigger {
  display: flex;
  align-items: center;
  gap: var(--sr-footer-spacing-sm);
  padding: 3px var(--sr-footer-spacing-sm);
  background: var(--sr-footer-surface);
  border: 1px solid var(--sr-footer-border);
  border-radius: var(--sr-footer-radius-md);
  cursor: pointer;
  font-family: inherit;
  font-size: var(--sr-footer-font-size-xs);
  color: var(--sr-footer-text);
  height: 28px;
  transition:
    border-color var(--sr-footer-transition-fast),
    box-shadow var(--sr-footer-transition-fast);
}

.sr-footer__language-trigger:hover {
  border-color: var(--sr-footer-accent);
}

.sr-footer__language-trigger:focus {
  outline: none;
  border-color: var(--sr-footer-accent);
  box-shadow: 0 0 0 2px rgba(255, 106, 61, 0.15);
}

/* Single language: same look, no dropdown/chevron */
.sr-footer__language-trigger--single {
  cursor: default;
  pointer-events: none;
}

.sr-footer__language-flag {
  width: 16px;
  height: 12px;
  object-fit: cover;
  border-radius: 1px;
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.1);
}

.sr-footer__language-code {
  font-weight: 600;
  font-size: 0.6875rem;
  min-width: 20px;
  text-align: center;
}

.sr-footer__language-chevron {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--sr-footer-muted);
  transition: transform var(--sr-footer-transition-fast);
}

.sr-footer__language-chevron--open {
  transform: rotate(180deg);
}

/* Language Dropdown — opens upward */
.sr-footer__language-dropdown {
  position: absolute;
  bottom: calc(100% + 6px);
  right: 0;
  min-width: 160px;
  max-height: 300px;
  overflow-y: auto;
  border: 1px solid var(--sr-footer-border);
  border-radius: var(--sr-footer-radius-lg);
  box-shadow: var(--sr-footer-dropdown-shadow);
  z-index: 200;
  padding: var(--sr-footer-spacing-xs);
  /* opaque background for readability */
  background: #ffffff;
}

[data-theme='dark'] .sr-footer__language-dropdown {
  background: #1e293b;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) .sr-footer__language-dropdown {
    background: #1e293b;
  }
}

.sr-footer__language-option {
  display: flex;
  align-items: center;
  gap: var(--sr-footer-spacing-sm);
  width: 100%;
  padding: var(--sr-footer-spacing-xs) var(--sr-footer-spacing-sm);
  background: transparent;
  border: none;
  border-radius: var(--sr-footer-radius-sm);
  cursor: pointer;
  font-family: inherit;
  font-size: var(--sr-footer-font-size-xs);
  color: var(--sr-footer-text);
  text-align: left;
  transition: background-color var(--sr-footer-transition-fast);
}

.sr-footer__language-option:hover {
  background: var(--sr-footer-link-hover-bg);
}

.sr-footer__language-option--selected {
  background: rgba(255, 106, 61, 0.1);
  color: var(--sr-footer-accent);
}

.sr-footer__language-option--selected:hover {
  background: rgba(255, 106, 61, 0.15);
}

.sr-footer__language-name {
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ==========================================================================
   SOCIAL LINKS — CENTER SECTION
   ========================================================================== */

.sr-footer__bottom {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--sr-footer-spacing-md);
  flex: 1;
  min-width: 0;
}

.sr-footer__social {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 3px;
}

.sr-footer__social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  padding: 0;
  background: transparent;
  border: 1px solid var(--sr-footer-border);
  border-radius: var(--sr-footer-radius-sm);
  color: var(--sr-footer-text-secondary);
  text-decoration: none;
  transition:
    color var(--sr-footer-transition-fast),
    border-color var(--sr-footer-transition-fast);
}

.sr-footer__social-link:hover {
  color: var(--sr-footer-accent);
  border-color: var(--sr-footer-accent);
}

.sr-footer__social-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.sr-footer__social-icon svg {
  width: 12px;
  height: 12px;
}

/* Labels hidden — icon-only in compact footer */
.sr-footer__social-label {
  display: none;
}

/* ==========================================================================
   BODY PADDING — PREVENT CONTENT HIDDEN BEHIND FIXED FOOTER
   ========================================================================== */

body {
  padding-bottom: var(--sr-footer-height);
}

/* ==========================================================================
   RESPONSIVE — STACKING BY WIDTH
   ========================================================================== */

/* Intermediate: keep company left / pages right, but stack half-and-half inside each */
@media (max-width: 960px) {
  .sr-footer__company {
    flex-direction: column;
    align-items: flex-start;
  }

  .sr-footer__company-legal {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--sr-footer-spacing-xs);
  }

  .sr-footer__company-contact {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--sr-footer-spacing-xs);
  }

  .sr-footer__standalone-group {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--sr-footer-spacing-xs);
  }
}

/* Narrow: top row wraps (main stays company left | pages right; then social + language below) */
@media (max-width: 768px) {
  .sr-footer__top {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--sr-footer-spacing-md);
  }

  .sr-footer__bottom {
    width: 100%;
    justify-content: flex-start;
  }
}

/* Narrowest: single column, full company stack, all page links stacked */
@media (max-width: 480px) {
  .sr-footer__company {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--sr-footer-spacing-xs);
  }

  .sr-footer__company-legal {
    flex-direction: column;
    gap: var(--sr-footer-spacing-xs);
  }

  .sr-footer__standalone-links {
    flex-direction: column;
    gap: var(--sr-footer-spacing-xs);
  }

  .sr-footer__standalone-group {
    flex-direction: column;
    gap: var(--sr-footer-spacing-xs);
  }

  .sr-footer__container {
    padding: 0 var(--sr-footer-spacing-md);
  }
}

/* ==========================================================================
   SCROLLBAR
   ========================================================================== */

.sr-footer__language-dropdown::-webkit-scrollbar {
  width: 4px;
}

.sr-footer__language-dropdown::-webkit-scrollbar-track {
  background: transparent;
}

.sr-footer__language-dropdown::-webkit-scrollbar-thumb {
  background: var(--sr-footer-border);
  border-radius: 2px;
}

.sr-footer__language-dropdown::-webkit-scrollbar-thumb:hover {
  background: var(--sr-footer-muted);
}

.sr-footer__language-dropdown {
  scrollbar-width: thin;
  scrollbar-color: var(--sr-footer-border) transparent;
}

/* ==========================================================================
   FOCUS VISIBLE
   ========================================================================== */

.sr-footer__link:focus-visible,
.sr-footer__standalone-link:focus-visible,
.sr-footer__social-link:focus-visible,
.sr-footer__language-option:focus-visible {
  outline: 2px solid var(--sr-footer-accent);
  outline-offset: 2px;
}

/* ==========================================================================
   REDUCED MOTION
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
  .sr-footer,
  .sr-footer__link,
  .sr-footer__standalone-link,
  .sr-footer__social-link,
  .sr-footer__language-trigger,
  .sr-footer__language-option,
  .sr-footer__language-chevron {
    transition: none;
  }
}