/*
 * OncoEdge Layout System — layout.css
 * ====================================
 * Production-grade fixed header/footer layout.
 * Works on Windows Chrome/Edge/Firefox, Android Chrome, iOS Safari, tablets.
 *
 * Include AFTER shared-theme.css:
 *   <link rel="stylesheet" href="styles/shared-theme.css">
 *   <link rel="stylesheet" href="styles/layout.css">
 *
 * The JS (core-layout.js) auto-sets these CSS custom properties:
 *   --oe-header-height, --oe-footer-height, --oe-total-top
 *
 * Page types:
 *   .oe-page-scroll   — Body scrolls (most pages: index, admin, userprofile, BKMRK, homepage)
 *   .oe-page-fixed    — Content area scrolls internally (QB, PM — fullscreen card layout)
 */

/* ─── Fallback defaults (overridden by JS measurements) ───────── */
:root {
  --oe-header-height: 70px;
  --oe-footer-height: 50px;
  --oe-subheader-height: 0px;
  --oe-total-top: 70px;
}

/* ═══════════════════════════════════════════════════════════════════
   FIXED HEADER — works for both header.banner AND .header-banner
   ═══════════════════════════════════════════════════════════════════ */

header.banner,
.header-banner {
  position: fixed !important;
  top: 0 !important;
  left: 0 !important;
  right: 0 !important;
  width: 100% !important;
  z-index: 1000 !important;
  /* GPU acceleration for smooth fixed positioning on all browsers */
  transform: translateZ(0);
  -webkit-transform: translateZ(0);
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  will-change: transform;
  /* Glassmorphism consistent */
  background-color: var(--banner-glass-bg);
  backdrop-filter: blur(15px) saturate(180%);
  -webkit-backdrop-filter: blur(15px) saturate(180%);
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
  border-bottom: 1px solid var(--banner-glass-border);
}

/* Safe area for iOS notch */
@supports (padding-top: env(safe-area-inset-top)) {
  header.banner,
  .header-banner {
    padding-top: calc(env(safe-area-inset-top));
  }
}

/* ═══════════════════════════════════════════════════════════════════
   FIXED FOOTER — works for both footer.banner AND .footer-banner
   ═══════════════════════════════════════════════════════════════════ */

footer.banner,
.footer-banner {
  position: fixed !important;
  bottom: 0 !important;
  left: 0 !important;
  right: 0 !important;
  width: 100% !important;
  z-index: 1000 !important;
  transform: translateZ(0);
  -webkit-transform: translateZ(0);
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  will-change: transform;
  background-color: var(--banner-glass-bg);
  backdrop-filter: blur(15px) saturate(180%);
  -webkit-backdrop-filter: blur(15px) saturate(180%);
  box-shadow: 0 -5px 20px rgba(0, 0, 0, 0.3);
  border-top: 1px solid var(--banner-glass-border);
  border-bottom: none !important;
}

/* Safe area for iOS home indicator */
@supports (padding-bottom: env(safe-area-inset-bottom)) {
  footer.banner,
  .footer-banner {
    padding-bottom: calc(0.5rem + env(safe-area-inset-bottom));
  }
}

/* ═══════════════════════════════════════════════════════════════════
   SUB-HEADER (optional desktop nav bar below main header)
   ═══════════════════════════════════════════════════════════════════ */

.sub-header {
  position: fixed !important;
  top: var(--oe-header-height, 70px);
  left: 0;
  right: 0;
  width: 100%;
  z-index: 999;
  transform: translateZ(0);
  -webkit-transform: translateZ(0);
}

/* ═══════════════════════════════════════════════════════════════════
   BODY SCROLL MODE (.oe-page-scroll)
   Used by: index, homepage, admin, userprofile, BKMRK, auth
   Body itself scrolls; content is padded to avoid header/footer overlap.
   ═══════════════════════════════════════════════════════════════════ */

body.oe-page-scroll {
  overflow-y: auto !important;
  overflow-x: hidden !important;
  /* Dynamic padding set by JS, with CSS fallbacks */
  padding-top: calc(var(--oe-total-top, 70px) + 1rem) !important;
  padding-bottom: calc(var(--oe-footer-height, 50px) + 1.5rem) !important;
  height: auto !important;
  min-height: 100vh !important;
  /* Hide scrollbar cosmetically (keeps functionality) */
  -ms-overflow-style: none;
  scrollbar-width: none;
}

body.oe-page-scroll::-webkit-scrollbar {
  display: none;
}

/* Container in scroll mode: no fixed height, flows naturally */
body.oe-page-scroll .container {
  height: auto !important;
  overflow: visible !important;
  padding-top: 1rem !important;
  padding-bottom: 2rem !important;
}

/* ═══════════════════════════════════════════════════════════════════
   FIXED CONTENT MODE (.oe-page-fixed)
   Used by: QB, PM (fullscreen card that scrolls internally)
   Body does NOT scroll; a content area fills the gap between header and footer.
   ═══════════════════════════════════════════════════════════════════ */

body.oe-page-fixed {
  overflow: hidden !important;
  height: 100vh !important;
  display: flex !important;
  flex-direction: column !important;
}

body.oe-page-fixed .container {
  /* Fill the space between header and footer */
  margin-top: var(--oe-total-top, 70px) !important;
  margin-bottom: var(--oe-footer-height, 50px) !important;
  height: calc(100vh - var(--oe-total-top, 70px) - var(--oe-footer-height, 50px)) !important;
  overflow-y: hidden !important;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  padding: 10px !important;
  box-sizing: border-box;
}

/* ═══════════════════════════════════════════════════════════════════
   SHARED HEADER COMPONENT STYLES
   Eliminates duplication of header-controls, logo, action buttons
   ═══════════════════════════════════════════════════════════════════ */

/* Logo + Title row */
.oe-logo-link {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  text-decoration: none;
  flex-shrink: 1;
  min-width: 0;
}

.oe-logo-link .logo,
.oe-logo-link .header-logo {
  height: 50px;
  width: auto;
  flex-shrink: 0;
}

.oe-logo-link .description {
  text-align: left;
  flex-shrink: 1;
  min-width: 0;
}

.oe-logo-link h2,
.oe-logo-link p {
  margin: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Header controls container */
.oe-header-controls {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: nowrap;
  flex-shrink: 0;
  margin-left: auto;
}

/* Circular icon buttons used in headers */
.oe-icon-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  background-color: transparent;
  color: var(--text-color);
  border: none;
  cursor: pointer;
  transition: transform 0.2s ease, background-color 0.2s ease;
  box-shadow: none;
  flex-shrink: 0;
  text-decoration: none;
  -webkit-tap-highlight-color: transparent;
  outline: none;
}

.oe-icon-btn:hover,
.oe-icon-btn:active {
  transform: scale(1.05);
}

/* Filled icon button variant (used in QB/PM/BKMRK headers) */
.oe-icon-btn-filled {
  background-color: var(--button-bg);
  color: var(--button-text);
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

.oe-icon-btn-filled:hover {
  background-color: var(--button-hover-bg);
  transform: scale(1.05);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
}

/* Login button (pill shape) */
.oe-login-btn {
  width: auto !important;
  padding: 0 1.5rem;
  border-radius: 22px;
  font-weight: 600;
  font-size: 0.9rem;
  text-transform: uppercase;
  background-color: var(--button-bg) !important;
  color: var(--button-text) !important;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

.oe-login-btn:hover {
  background-color: var(--button-hover-bg) !important;
}

/* ═══════════════════════════════════════════════════════════════════
   SHARED TOAST STYLES (so pages don't redefine these)
   ═══════════════════════════════════════════════════════════════════ */

#toast-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 3000;
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: flex-end;
  pointer-events: none;
}

#toast-container .toast {
  pointer-events: auto;
  background-color: var(--card-bg);
  color: var(--text-color);
  padding: 15px 20px;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
  opacity: 0;
  transform: translateY(-20px);
  transition: opacity 0.3s ease-out, transform 0.3s ease-out;
  min-width: 250px;
  max-width: 350px;
  display: flex;
  align-items: center;
  gap: 10px;
  border: 1px solid var(--card-border);
}

#toast-container .toast.show {
  opacity: 1;
  transform: translateY(0);
}

#toast-container .toast.success {
  border-left: 5px solid var(--success-color, #10b981);
}

#toast-container .toast.error {
  border-left: 5px solid var(--error-color, #ef4444);
}

#toast-container .toast .icon {
  font-size: 1.2rem;
  flex-shrink: 0;
}

#toast-container .toast.success .icon {
  color: var(--success-color, #10b981);
}

#toast-container .toast.error .icon {
  color: var(--error-color, #ef4444);
}

/* ═══════════════════════════════════════════════════════════════════
   SHARED MODAL OVERLAY STYLES
   ═══════════════════════════════════════════════════════════════════ */

.oe-modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--modal-bg);
  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(5px);
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding-top: 10vh;
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0s 0.3s;
}

.oe-modal-overlay.visible {
  opacity: 1;
  visibility: visible;
  transition: opacity 0.3s ease;
}

.oe-modal-overlay .modal-content {
  background-color: var(--modal-content-bg);
  padding: 2rem;
  border-radius: 12px;
  border: 1px solid var(--modal-content-border);
  width: 90%;
  max-width: 450px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  transform: scale(0.95);
  transition: transform 0.3s ease;
}

.oe-modal-overlay.visible .modal-content {
  transform: scale(1);
}

/* ═══════════════════════════════════════════════════════════════════
   SHARED SIDEBAR STYLES (Mobile only)
   ═══════════════════════════════════════════════════════════════════ */

.oe-sidebar {
  position: fixed;
  top: 0;
  right: 0;
  height: 100%;
  width: 270px;
  background-color: var(--banner-glass-bg);
  backdrop-filter: blur(15px) saturate(180%);
  -webkit-backdrop-filter: blur(15px) saturate(180%);
  box-shadow: -5px 0 20px rgba(0, 0, 0, 0.3);
  transform: translateX(100%);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 2001;
  padding: 1.5rem;
  padding-top: calc(var(--oe-total-top, 70px) + 1rem);
  display: flex;
  flex-direction: column;
  gap: 15px;
  overflow-y: auto;
  border-left: 1px solid var(--banner-glass-border);
}

.oe-sidebar.active {
  transform: translateX(0);
}

.oe-sidebar-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
  z-index: 2000;
  display: none;
  opacity: 0;
  transition: opacity 0.3s ease-out;
}

.oe-sidebar-overlay.active {
  display: block;
  opacity: 1;
}

/* Sidebar full-width buttons */
.oe-sidebar .oe-icon-btn-filled,
.oe-sidebar .icon-header-button {
  width: 100%;
  border-radius: 8px;
  padding: 10px 15px;
  font-size: 1.1em;
  justify-content: flex-start;
  gap: 10px;
  min-width: unset;
  max-width: unset;
}

/* Sidebar selects */
.oe-sidebar select,
.oe-sidebar .sidebar-select {
  width: 100%;
  padding: 10px 15px;
  border-radius: 8px;
  border: 1px solid var(--input-border);
  background-color: var(--input-bg);
  color: var(--input-text);
  font-size: 1em;
  font-weight: 500;
  cursor: pointer;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right 10px center;
  background-size: 0.8em;
}

/* Hamburger button: hidden on desktop, shown on mobile */
.oe-hamburger {
  display: none !important;
  background: none;
  border: none;
  color: var(--text-color);
  font-size: 1.8em;
  cursor: pointer;
  padding: 0 10px;
  transition: transform 0.2s ease;
}

.oe-hamburger:hover {
  transform: scale(1.1);
}

/* ═══════════════════════════════════════════════════════════════════
   SHARED LOADER OVERLAY
   ═══════════════════════════════════════════════════════════════════ */

.oe-loader-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--modal-bg);
  backdrop-filter: blur(8px) saturate(180%);
  -webkit-backdrop-filter: blur(8px) saturate(180%);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 3000;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.oe-loader-overlay.show {
  opacity: 1;
  visibility: visible;
}

.oe-loader-spinner {
  border: 8px solid var(--card-border);
  border-top: 8px solid var(--button-bg);
  border-radius: 50%;
  width: 60px;
  height: 60px;
  animation: oe-spin 2s linear infinite;
}

@keyframes oe-spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* ═══════════════════════════════════════════════════════════════════
   SHARED FOOTER CONTENT STYLES
   ═══════════════════════════════════════════════════════════════════ */

footer.banner p,
.oe-footer-copyright {
  margin: 0;
  font-size: clamp(0.7rem, 2vw, 0.9rem);
}

footer.banner .himmel-logo,
footer.banner img[alt="Himmel Logo"] {
  height: 20px;
  vertical-align: middle;
  margin: 0 0.25rem;
}

/* ═══════════════════════════════════════════════════════════════════
   RESPONSIVE BREAKPOINTS
   ═══════════════════════════════════════════════════════════════════ */

/* ─── MOBILE (<=768px) ─── */
@media (max-width: 768px) {
  /* Show hamburger on mobile */
  .oe-hamburger {
    display: flex !important;
    align-items: center;
    justify-content: center;
  }

  /* Hide desktop-only controls on mobile (pages opt-in via this class) */
  .oe-desktop-only {
    display: none !important;
  }

  /* Compact logo on mobile */
  .oe-logo-link .logo,
  .oe-logo-link .header-logo {
    height: clamp(35px, 8vw, 45px);
  }

  .oe-logo-link {
    flex-grow: 1;
    max-width: calc(100% - 120px);
  }

  .oe-logo-link h2 {
    font-size: clamp(0.9rem, 3.5vw, 1.2rem);
  }

  .oe-logo-link p {
    font-size: clamp(0.8rem, 2.5vw, 1rem);
  }

  /* Compact header controls */
  .oe-header-controls {
    gap: 0.5rem;
  }

  .oe-icon-btn {
    width: clamp(38px, 10vw, 44px);
    height: clamp(38px, 10vw, 44px);
    font-size: clamp(1rem, 2.5vw, 1.2rem);
  }

  /* Smaller footer */
  footer.banner,
  .footer-banner {
    padding: 0.5rem 1rem;
  }

  /* Reduce backdrop blur on mobile for perf */
  header.banner,
  .header-banner,
  footer.banner,
  .footer-banner {
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
  }
}

/* ─── SMALL MOBILE (<=480px) ─── */
@media (max-width: 480px) {
  .oe-logo-link {
    max-width: calc(100% - 100px);
  }

  .oe-icon-btn {
    width: 36px;
    height: 36px;
    font-size: 0.9rem;
  }

  .oe-login-btn {
    padding: 0 0.8rem;
    font-size: 0.75rem;
  }

  #toast-container {
    right: 10px;
    left: 10px;
    align-items: stretch;
  }

  #toast-container .toast {
    min-width: 0;
    max-width: none;
  }
}

/* ─── TABLET (769px – 1023px) ─── */
@media (min-width: 769px) and (max-width: 1023px) {
  /* Sidebar hidden; hamburger hidden (desktop-only controls visible) */
  .oe-sidebar,
  .oe-sidebar-overlay {
    display: none !important;
  }
}

/* ─── DESKTOP (>=1024px) ─── */
@media (min-width: 1024px) {
  /* Sidebar hidden on desktop */
  .oe-sidebar,
  .oe-sidebar-overlay,
  .oe-hamburger {
    display: none !important;
  }
}

/* ═══════════════════════════════════════════════════════════════════
   ACCESSIBILITY: Reduced Motion
   ═══════════════════════════════════════════════════════════════════ */

@media (prefers-reduced-motion: reduce) {
  .oe-sidebar,
  .oe-modal-overlay,
  .oe-modal-overlay .modal-content,
  #toast-container .toast {
    transition: none !important;
  }

  .oe-loader-spinner {
    animation-duration: 4s;
  }
}