:root {
  --color-background: #f0f0f0;
  --color-text: #3f3f3f;
  --color-border: #ccc;
  --color-gradient-start: #ac9e9e;
  --color-gradient-end: #c4c4c4;
  --color-clear-button-start: #b28888;
  --color-clear-button-end: #c1b0b0;
  --color-clock-gradient-start: #929ea8;
  --color-clock-gradient-end: #cecece;
  --color-clock-shadow-light: #ffffff;
  --color-clock-shadow-dark: #d9d9d9;
  --color-clock-border: #424242;
  --color-clock-number: white;
  --color-popup-background: white;
  --color-close-button: #aaa;
  --color-close-button-hover: black;
  --color-slider-background: #d3d3d3;
  --color-slider-thumb-start: #214f74;
  --color-slider-thumb-end: #e6e6e6;
  --color-remove-button: #ff4d4d;
  --color-remove-button-hover: #ff1a1a;
  --color-menu-icon: #333;
}

/*---------- Body and General Styles ----------*/
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
  text-align: center;
  display: flex;
  flex-flow: column;
  justify-content: center;
  align-items: center;
  gap: 0;
  padding: 16px;
  background-color: var(--color-background);
}

h1 {
  margin-top: 48px;
  margin-bottom: 4px;
  font-size: 1.5rem;
}

select,
input {
  border-radius: 8px;
  border: 1px solid var(--color-border);
  padding: 8px;
}

.hidden:not(#chart-explainer):not(#highest-bac) {
  display: none;
}

/*---------- Header and Navigation ----------*/
header {
  position: fixed;
  top: 0;
  right: 0;
  padding: 20px;
  z-index: 1000;
  display: flex;
  align-items: center;
  gap: 20px;
}

#menu-toggle {
  display: flex;
  flex-direction: column;
  justify-content: space-around;
  width: 30px;
  height: 25px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
}

#menu-toggle span {
  width: 30px;
  height: 3px;
  background: var(--color-menu-icon);
  transition: all 0.3s linear;
  transform-origin: center;
}

#menu-toggle.active span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

#menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

#menu-toggle.active span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

#slide-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 100%;
  height: 100%;
  background: var(--color-popup-background);
  transition: right 0.3s ease;
  z-index: 999;
  padding: 60px 20px 20px;
  box-sizing: border-box;
}

#slide-menu.active {
  right: 0;
}

#slide-menu ul {
  list-style-type: none;
  padding: 0;
}

#slide-menu ul li {
  margin-bottom: 20px;
}

#slide-menu ul li a {
  color: var(--color-menu-icon);
  text-decoration: none;
  font-size: 1.2em;
}

#slide-menu ul li a.active {
  font-weight: bold;
  position: relative;
  padding-left: 12px;
}

#slide-menu ul li a.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 3px;
  height: 100%;
  background: var(--color-clock-border);
  border-radius: 2px;
}

/*---------- Language Switcher ----------*/
#language-switcher {
  position: absolute;
  top: 10px;
  left: 20px;
}

.flag-button {
  background: none;
  /* border: 2px solid transparent; */
  padding: 2px;
  cursor: pointer;
  border-radius: 4px;
  font-size: 2em;
}

.flag-button:hover {
  border-color: #ddd;
}

.flag-button.active {
  border-color: var(--color-clock-border);
}

.flag-button:not(.active) {
  filter: grayscale(100%);
}

/*---------- User Info Container ----------*/
#user-info-container {
  width: calc(100vw - 160px);
  display: flex;
  flex-flow: column;
  justify-content: center;
  align-items: center;
  gap: 12px;
  margin-top: 12px;
  margin-bottom: 16px;
}

#user-info-container p {
  font-size: 0.85rem;
  color: rgba(63, 63, 63, 0.7);
  line-height: 1.4;
  margin: 0;
}

/*---------- Button Styles ----------*/
.btn-primary {
  border: none;
  display: inline-block;
  padding: 10px 16px;
  color: var(--color-text);
  text-decoration: none;
  border-radius: 16px;
  cursor: pointer;
  font-size: 1em;
  background: linear-gradient(
    112deg,
    var(--color-gradient-start),
    var(--color-gradient-end)
  );
  transition: transform 0.15s ease, filter 0.15s ease;
}

.btn-primary:hover {
  filter: brightness(0.95);
}

.btn-primary:active {
  transform: scale(0.97);
}

.btn-primary:focus-visible {
  outline: 2px solid var(--color-clock-border);
  outline-offset: 2px;
}

.btn-secondary {
  border: 1px solid var(--color-border);
  background: transparent;
  padding: 10px 16px;
  border-radius: 16px;
  cursor: pointer;
  font-size: 1em;
  color: var(--color-text);
  transition: background 0.15s ease;
}

.btn-secondary:hover {
  background: rgba(0, 0, 0, 0.05);
}

.btn-secondary:focus-visible {
  outline: 2px solid var(--color-clock-border);
  outline-offset: 2px;
}

#user-info {
  position: relative;
  padding-right: 28px;
}

#user-info::after {
  content: '\276F';
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.8em;
  opacity: 0.6;
}

.clear-button.hidden-clear {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  margin-top: 0;
  margin-bottom: 0;
  padding: 0;
  height: 0;
  overflow: hidden;
}

.clear-button {
  background: linear-gradient(
    112deg,
    var(--color-clear-button-start),
    var(--color-clear-button-end)
  ) !important;
  transition: margin-top 0.3s ease, background 0.3s ease;
  margin-bottom: 24px;
}

.clear-button.confirming {
  background: linear-gradient(112deg, #cc4444, #dd6666) !important;
  color: white;
  animation: shake 0.3s ease;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-4px); }
  75% { transform: translateX(4px); }
}

/*---------- Clock Container ----------*/
#clock-container {
  width: 100vw;
  height: auto;
  display: flex;
  justify-content: center;
  align-items: center;
  padding-top: 40px;
  padding-bottom: 40px;
}

#clock {
  width: calc(100vw - 160px);
  max-width: 300px;
  aspect-ratio: 1/1;
  background: conic-gradient(
    from 165deg at 50% 50%,
    var(--color-clock-gradient-start) 0%,
    var(--color-clock-gradient-end) 100%
  );
  box-shadow: 20px 20px 60px var(--color-clock-shadow-dark),
    -20px -20px 60px var(--color-clock-shadow-light);
  border-radius: 100%;
  position: relative;
  margin: 50px;
  overflow: visible;
}

@media (max-width: 900px) {
  #clock {
    width: calc(100vw - 160px);
    max-width: 300px;
  }
}

.clock-label {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  color: var(--color-text);
  font-size: 0.8em;
  white-space: nowrap;
  border: 1px solid var(--color-clock-border);
  border-radius: 50px;
  padding: 4px 12px;
  background: rgba(255, 255, 255, 0.7);
  cursor: default;
  animation: pulse 2s ease-in-out infinite;
  transition: opacity 0.3s ease;
}

.clock-label.hidden-label {
  animation: none;
  opacity: 0;
  pointer-events: none;
}

@keyframes pulse {
  0%, 100% { opacity: 0.7; }
  50% { opacity: 1; }
}

.clock-number {
  left: 45%;
  top: 45%;
  position: absolute;
  cursor: pointer;
  text-align: center;
  font-size: 1em;
  color: var(--color-clock-number);
  display: flex;
  justify-content: center;
  align-items: center;
  width: 10%;
  height: 10%;
  border-radius: 100%;
  transform: rotateZ(calc((var(--nth-child) + 6) * 30 * 1deg)) translateY(400%)
    rotateZ(calc((var(--nth-child) + 6) * 30 * -1deg));
  transition: background 0.15s ease;
}

.clock-number:hover {
  background: rgba(255, 255, 255, 0.25);
}

.clock-number:active {
  background: rgba(255, 255, 255, 0.4);
}

/*---------- Nth-child Styles for drink groups around the clock face----------*/
:nth-child(1) {
  --nth-child: 1;
}
:nth-child(2) {
  --nth-child: 2;
}
:nth-child(3) {
  --nth-child: 3;
}
:nth-child(4) {
  --nth-child: 4;
}
:nth-child(5) {
  --nth-child: 5;
}
:nth-child(6) {
  --nth-child: 6;
}
:nth-child(7) {
  --nth-child: 7;
}
:nth-child(8) {
  --nth-child: 8;
}
:nth-child(9) {
  --nth-child: 9;
}
:nth-child(10) {
  --nth-child: 10;
}
:nth-child(11) {
  --nth-child: 11;
}
:nth-child(12) {
  --nth-child: 12;
}

/*---------- Drink Group (Generated by JS) ----------*/
.drink-group {
  position: absolute;
  display: flex;
  flex-flow: row wrap;
  justify-content: center;
  align-items: center;
  max-width: 44px;
  cursor: pointer;
  pointer-events: auto;
}

.drink-pictogram {
  font-size: min(1rem, 2vw);
  margin: 0;
}

.drink-group .drink-pictogram {
  font-size: min(0.85rem, 2.2vw);
  line-height: 1.1;
}

/*---------- BAC Chart ----------*/
#bacChart {
  width: 100%;
  height: auto;
  cursor: pointer;
}

#bacChart-container {
  width: 100%;
  max-width: 900px;
  margin-bottom: 32px;
}

#chart-explainer {
  width: calc(100vw - 80px);
  max-width: 400px;
  margin-top: 8px;
}

#chart-explainer,
#highest-bac {
  transition: opacity 0.4s ease, max-height 0.4s ease;
  opacity: 1;
  max-height: 200px;
  overflow: hidden;
}

.bac-explainer {
  font-size: 0.8rem;
  color: rgba(63, 63, 63, 0.6);
  margin-top: 0;
  width: calc(100vw - 80px);
  max-width: 400px;
}

#chart-explainer.hidden,
#highest-bac.hidden,
#bac-explainer.hidden {
  opacity: 0;
  max-height: 0;
  padding: 0;
  margin: 0;
}

/*---------- Popup Backdrop ----------*/
.popup-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.4);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, visibility 0.25s;
}

.popup-backdrop.active {
  opacity: 1;
  visibility: visible;
}

/*---------- Popups ----------*/
.popup {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.9);
  background: var(--color-popup-background);
  border: 1px solid var(--color-border);
  padding: 20px;
  z-index: 1000;
  border-radius: 12px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s;
  width: min(300px, calc(100vw - 40px));
  max-height: calc(100vh - 40px);
  overflow-y: auto;
}

.popup.active {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, -50%) scale(1);
}

#drink-popup.active {
  width: min(360px, calc(100vw - 32px));
}

.close-btn {
  color: var(--color-close-button);
  float: right;
  font-size: 28px;
  font-weight: bold;
  cursor: pointer;
}

.close-btn:hover,
.close-btn:focus {
  color: var(--color-close-button-hover);
  text-decoration: none;
  cursor: pointer;
}

/*---------- Onboarding Banner ----------*/
.onboarding-banner {
  background: linear-gradient(135deg, rgba(146, 158, 168, 0.15), rgba(206, 206, 206, 0.15));
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 12px 16px;
  margin-bottom: 12px;
}

.onboarding-banner p {
  font-size: 0.85rem;
  line-height: 1.5;
  margin: 0;
  color: var(--color-text);
}

/*---------- User Info Popup ----------*/
#user-info-popup form {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

#user-info-popup select,
#user-info-popup button {
  padding: 10px;
  font-size: 16px;
}

.number-input {
  margin-bottom: 15px;
}

.slider-container {
  display: flex;
  align-items: center;
  gap: 10px;
}

input[type="range"] {
  flex-grow: 1;
  appearance: none;
  -webkit-appearance: none;
  width: 100%;
  height: 10px;
  border-radius: 5px;
  background: var(--color-slider-background);
  outline: none;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: linear-gradient(
    145deg,
    var(--color-slider-thumb-start),
    var(--color-slider-thumb-end)
  );
  cursor: pointer;
}

input[type="range"]::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: linear-gradient(
    145deg,
    var(--color-slider-thumb-start),
    var(--color-slider-thumb-end)
  );
  cursor: pointer;
}

input[type="number"] {
  width: 60px;
  text-align: center;
}

/*---------- Drink Popup ----------*/
#drink-popup-content {
  display: flex;
  flex-flow: column;
  border-radius: 8px;
  padding: 20px;
  gap: 20px;
}

#drinks-container {
  display: flex;
  max-width: 100%;
  flex-flow: row wrap;
  gap: 10px;
  justify-content: center;
}

.drink-option {
  width: calc(33.333% - 8px);
  min-width: 80px;
  height: auto;
  display: flex;
  flex-flow: column;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  background-size: cover;
  background-position: center;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  overflow: hidden;
  padding-bottom: 8px;
  gap: 8px;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.drink-option:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.drink-option:active {
  transform: scale(0.97);
}

@media (max-width: 360px) {
  .drink-option {
    width: calc(50% - 8px);
  }
}

.drink-option img {
  width: 100%;
  height: auto;
}

.drink-info {
  display: flex;
  flex-flow: column;
  align-items: center;
  gap: 4px;
}

.drink-info p {
  font-size: 0.8rem;
  margin: 0;
}

#drink-name {
  font-weight: bold;
}

.bac-increase {
  margin-top: 5px;
  font-weight: bold;
  font-size: 0.9rem;
  color: var(--color-clock-border);
  background: rgba(66, 66, 66, 0.08);
  padding: 2px 6px;
  border-radius: 4px;
}

/*---------- Drink List Modal ----------*/
#drink-list-modal .popup-content {
  max-width: 300px;
}

#drink-list {
  list-style-type: none;
  padding: 0;
}

#drink-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

#drink-list button {
  background-color: var(--color-remove-button);
  color: var(--color-popup-background);
  border: none;
  padding: 5px 10px;
  cursor: pointer;
  border-radius: 4px;
}

#drink-list button:hover {
  background-color: var(--color-remove-button-hover);
}

/*---------- Desktop Tooltip ----------*/
#desktop-info {
  display: none;
  position: absolute;
  background: white;
  margin-left: 20px;
  margin-right: 20px;
  padding: 10px;
  z-index: 1000;
  border-radius: 8px;
  text-align: left;
}

#desktop-info p {
  line-height: 1.6;
}

/*---------- Mobile Popup ----------*/
.mobile-info-popup-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

.mobile-info-popup-title {
  margin: 0;
}

#mobile-info-popup .popup-content {
  display: flex;
  flex-flow: column;
  align-items: flex-start;
  justify-content: center;
}

#mobile-info-popup .popup-content span {
  align-self: flex-end;
}

#mobile-info-popup-content {
  text-align: left;
  line-height: 1.6;
}

/*---------- QR Code ----------*/
#qrcode {
  margin-top: 20px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.qr-label {
  font-size: 0.8rem;
  color: rgba(63, 63, 63, 0.6);
  text-align: center;
  margin-top: 8px;
}

/*---------- Media Queries ----------*/
@media (min-width: 601px) {
  #slide-menu {
    width: 400px;
  }
}

.content-container {
  text-align: left;
  line-height: 1.7;
  max-width: 600px;
}

.content-container .section {
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}

.content-container .section:last-child {
  border-bottom: none;
}

.content-container h2 {
  margin-top: 8px;
  margin-bottom: 8px;
}

.content-container h3 {
  margin-top: 16px;
  margin-bottom: 8px;
}

blockquote {
  margin: 16px 0;
  padding: 12px 16px;
  border-left: 4px solid var(--color-clock-border);
  background: rgba(0, 0, 0, 0.03);
  border-radius: 0 8px 8px 0;
  font-style: italic;
  line-height: 1.6;
  color: var(--color-text);
}