:root {
  --accent-color: #1687c7;
  --accent-hover: #0f6fa8;
  --surface: #ffffff;
  --surface-muted: #f3f6f8;
  --text: #17212b;
  --text-muted: #66727d;
  --border: #dbe2e7;
  --danger: #cf3341;
  --shadow: 0 8px 28px rgba(23, 33, 43, 0.1);
}

html, body {
  height: 100%;
  margin: 0;
  padding: 0;
  color: var(--text);
  background: var(--surface-muted);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

[hidden] {
  display: none !important;
}

.page-wrapper {
  display: flex;
  flex-direction: column;
  min-height: 100vh; /* full viewport height */
}

a, a h1 {
  text-decoration: none !important;
}

.container {
  flex: 1 1 auto;       /* grow and shrink as needed */
  overflow-y: auto;     /* enable vertical scroll */
  position: relative;
  padding: 0 0 88px;
  min-width: 200px;
  width: calc(100% - 1em);
  margin: 0 auto;
}

h1 {
  margin: 1.25rem 0;
  text-align: center;
  font-size: clamp(1.45rem, 4vw, 2rem);
  letter-spacing: -0.025em;
}

.flash_message {
  min-height: 1.5rem;
  margin-top: 80px;
}

.red_notification {
  color: var(--danger);
  margin: 1rem auto;
  text-align: center;
}

/* Navigation */
.nav_btn {
  color: white;
  display: inline-block;
  text-decoration: none;
  margin: 0;
  padding: 0.65rem 0.85rem;
  background: rgba(17, 31, 43, 0.88);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 9px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
  transition: transform 0.15s ease, background 0.15s ease;
}

.nav_btn select{
    background: #333;
    color: white;
    margin: 0;
    padding: 0;
}

.nav_btn:hover {
  background: #263d50;
  cursor: pointer;
  transform: translateY(-1px);
}

.nav_btn:focus-visible, .save_btn:focus-visible, .delete_btn:focus-visible,
.stop_print_btn:focus-visible, .switch input:focus-visible + .slider {
  outline: 3px solid rgba(22, 135, 199, 0.35);
  outline-offset: 2px;
}

.admin_nav {
  background: linear-gradient(135deg, #1687c7, #116b9f);
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin-bottom: 1rem;
  min-height: 54px;
  padding: 0.55rem 72px 0.55rem 0.7rem;
  border-radius: 0 0 14px 14px;
  box-shadow: 0 4px 18px rgba(17, 107, 159, 0.22);
}

/* Buttons */
.big_btn {
  flex: 1 1 auto;
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  margin: 0.5%;
  max-width: 150px;
  min-width: 60px;
  font-size: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--accent-color);
  color: #fff;
  border: none;
}

.big_btn.disabled {
  opacity: 0.5;
  pointer-events: none;
  cursor: not-allowed;
}

.big_btn.active {
  background-color: #00c853;
  transition: background-color 0.3s ease;
}

.save_btn {
    background-color: var(--accent-color);
}
.delete_btn{
    background-color: var(--danger);
}

.save_btn, .delete_btn{
  color: #fff;
  border: none;
  padding: 0.6em 1em;
  border-radius: 8px;
  cursor: pointer;
  text-align: center;
  font-size: 1em;
  transition: background 0.2s ease;
  opacity: 1;
  box-shadow: 0 2px 7px rgba(23, 33, 43, 0.14);
}

.save_btn:hover, .delete_btn:hover {
  filter: brightness(0.9);
  transform: translateY(-1px);
}


/* Footer */
.footer {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100vw;
    display:flex;
    justify-content:center;
    gap:1.5rem;
    align-items:center;
    flex-shrink: 0;       /* never shrink */
    text-align: center;
    min-height: 42px;
    padding: 0.65rem 1rem;
    font-size: 0.9rem;
    color: #333;
    background: rgba(255, 255, 255, 0.94);
    border-top: 1px solid var(--border);
    box-shadow: 0 -5px 22px rgba(23, 33, 43, 0.08);
    backdrop-filter: blur(10px);
    box-sizing: border-box;
    z-index: 100;
}

/* Optional: footer link styling */
.footer a {
  color: var(--accent-color, #1fa3ec);
  text-decoration: none;
}

.footer a:hover {
    text-decoration: underline;
}

.footer label{
    font-size: 28px;
}

/* User info */
.user_picture_wrapper {
  position: absolute;
  top: 11px;
  right: 12px;
  z-index: 10;
}

.user_picture_logout {
  display: block;
  border: 0;
  padding: 0;
  background: transparent;
  cursor: pointer;
}

.user_picture_logout:hover .user_picture,
.user_picture_logout:focus-visible .user_picture {
  transform: scale(1.06);
  box-shadow: 0 0 0 3px rgba(0, 215, 255, 0.2), 0 0 28px rgba(0, 215, 255, 0.4);
}

.user_picture {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid rgba(255, 255, 255, 0.9);
  box-shadow: 0 2px 9px rgba(0, 0, 0, 0.2);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

/* Modal */
.modal.hidden { display: none; }

.modal {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1200;
}

.modal-content {
  background: white;
  padding: 1.15rem;
  border-radius: 10px;
  width: 90%;
  max-width: 640px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.18);
  position: relative;
}

.modal-close {
  position: absolute;
  right: 0.5rem;
  top: 0.3rem;
  border: none;
  background: transparent;
  font-size: 1.6rem;
  cursor: pointer;
}

/* Responsive */
@media only screen and (max-width: 767px) {
  .container { min-width: 100vw; width: 100%; }
  .footer { gap: 1rem; }
  .footer a { display: none; }
}

@media (orientation: landscape) {
  .container { min-width: 400px; }
}
/* Align buttons vertically */
.update_buttons {
  display: flex;
  flex-direction: column;   /* stack buttons vertically */
  align-items: stretch;     /* make buttons fill the width of container */
  gap: 0.5em;               /* spacing between buttons */
}

/* Make all buttons inside update_buttons fill full width */
.update_buttons .save_btn {
  width: 100%;
  text-align: center;
}

/* Ensure spacing from the top for the first button is consistent */
.update_buttons .save_btn:first-child {
  margin-top: 0;
}

.switch {
  position: relative;
  display: inline-block;
  width: 50px;
  height: 28px;
}
.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}
.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: #ccc;
  transition: 0.3s;
  border-radius: 28px;
}
.slider:before {
  position: absolute;
  content: "";
  height: 22px;
  width: 22px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: 0.3s;
  border-radius: 50%;
}
input:checked + .slider {
  background-color: #4CAF50;
}
input:checked + .slider:before {
  transform: translateX(22px);
}

/* Experimental local theme: industrial control console */
:root {
  --accent-color: #00d7ff;
  --accent-hover: #62e7ff;
  --surface: rgba(13, 24, 35, 0.86);
  --surface-muted: #071019;
  --text: #eefaff;
  --text-muted: #91a8b7;
  --border: rgba(119, 218, 239, 0.18);
  --danger: #ff405d;
  --warning: #ffb020;
  --shadow: 0 18px 55px rgba(0, 0, 0, 0.38);
}

body {
  background:
    radial-gradient(circle at 12% 10%, rgba(0, 215, 255, 0.14), transparent 30rem),
    radial-gradient(circle at 88% 75%, rgba(255, 176, 32, 0.08), transparent 28rem),
    linear-gradient(145deg, #08131d, #03080d 70%);
  background-attachment: fixed;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.16;
  background-image:
    linear-gradient(rgba(80, 185, 210, 0.12) 1px, transparent 1px),
    linear-gradient(90deg, rgba(80, 185, 210, 0.12) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: linear-gradient(to bottom, black, transparent 82%);
}

h1 {
  color: var(--text);
  text-transform: none;
  letter-spacing: 0.02em;
  font-weight: 700;
  text-shadow: 0 0 24px rgba(0, 215, 255, 0.22);
}

.admin_nav {
  background: rgba(7, 18, 27, 0.82);
  border: 1px solid var(--border);
  border-top: 0;
  box-shadow: 0 12px 38px rgba(0, 0, 0, 0.28), inset 0 -1px rgba(0, 215, 255, 0.08);
  backdrop-filter: blur(18px) saturate(140%);
}

.nav_btn {
  color: #bff6ff;
  background: rgba(0, 215, 255, 0.08);
  border-color: rgba(0, 215, 255, 0.22);
  box-shadow: inset 0 0 14px rgba(0, 215, 255, 0.04);
}

.nav_btn:hover {
  color: #fff;
  background: rgba(0, 215, 255, 0.2);
  border-color: rgba(0, 215, 255, 0.55);
  box-shadow: 0 0 20px rgba(0, 215, 255, 0.16);
}

.nav_btn select,
select.nav_btn,
.nav_btn select,
.nav_btn > select {
  color: #dffbff;
  background-color: #102332;
  border: 1px solid rgba(255,255,255,0.06);
  padding: 0.35rem 0.65rem;
  border-radius: 8px;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  background-image:
    linear-gradient(45deg, transparent 50%, rgba(223,251,255,0.9) 50%),
    linear-gradient(135deg, rgba(223,251,255,0.9) 50%, transparent 50%),
    linear-gradient(to right, rgba(255,255,255,0.06), rgba(255,255,255,0.06));
  background-position: calc(100% - 18px) calc(0.5em + 2px), calc(100% - 13px) calc(0.5em + 2px), 100% 0;
  background-size: 5px 5px, 5px 5px, 1px 1.5em;
  background-repeat: no-repeat;
}

.save_btn {
  color: #031016;
  background: linear-gradient(135deg, #60efff, #00b8db);
  font-weight: 700;
}

.footer {
  color: var(--text-muted);
  background: rgba(5, 13, 20, 0.9);
  border-color: rgba(0, 215, 255, 0.16);
  box-shadow: 0 -10px 40px rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(20px) saturate(150%);
}

.footer a { color: #67eaff; }

.user_picture {
  border-color: rgba(0, 215, 255, 0.8);
  box-shadow: 0 0 0 3px rgba(0, 215, 255, 0.1), 0 0 22px rgba(0, 215, 255, 0.25);
}

.slider {
  background: #263744;
  box-shadow: inset 0 2px 5px rgba(0, 0, 0, 0.45);
}

input:checked + .slider {
  background: #00c983;
  box-shadow: 0 0 16px rgba(0, 201, 131, 0.35);
}

/* Ensure select elements that use the nav button styling remain dark in all contexts */
select.nav_btn,
.nav_btn > select,
.nav_btn select {
  background-color: #102332 !important;
  color: #dffbff !important;
  border-color: rgba(255,255,255,0.06) !important;
}