:root {
    --ease-out: cubic-bezier(0.23, 1, 0.32, 1);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f0f0f0;
    color: #333;
    margin: 0;
    padding: 0;
}

#title-nav-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    width: 100%;
    margin-bottom: 1rem;
    min-height: 3rem;
}

.nav-arrow {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    text-decoration: none;
    color: #666;
    font-family: 'Playfair Display', serif;
    font-size: 0.9rem;
    padding: 0.4rem 0.6rem;
    border-radius: 8px;
    transition: all 0.2s ease;
    background: transparent;
    min-width: 80px;
}

.nav-arrow.nav-prev {
    justify-content: flex-start;
}

.nav-arrow.nav-next {
    justify-content: flex-end;
}

.nav-arrow:hover {
    color: #333;
    background: rgba(0, 0, 0, 0.05);
}

.nav-arrow-icon {
    font-size: 2rem;
    line-height: 1;
    font-weight: 300;
    transform: translateY(-4px);
}

.nav-label {
    font-size: 0.85rem;
    opacity: 0.8;
    text-transform: capitalize;
}

.nav-arrow.hidden {
    visibility: hidden;
    pointer-events: none;
}

/* Phones: the title row cannot fit two labelled arrows beside the title, so keep
   only the arrow icons (the links keep their aria-label). */
@media (max-width: 480px) {
    .nav-arrow {
        min-width: 0;
    }

    .nav-label {
        display: none;
    }
}

#main-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    height: 100vh;
    width: 100vw;
    overflow-x: hidden;
}

#header-container {
    top: 0;
}

#guesses-container {
    top: 10%;
    overflow-x: hidden;
}

#input-container {
    bottom: 0;
    position: relative;
}

.header {
    text-align: center;
    border: 2px solid #d1d1d1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
    margin: 0 4px;
    background: linear-gradient(135deg, #f9fafc 80%, #e3e6ed 100%);
    border-radius: 18px;
    box-shadow: 0 2px 8px 0 rgba(0,0,0,0.10);
    font-weight: 600;
    color: #3a3a3a;
    transition: box-shadow 0.2s;
}

.header:hover {
    box-shadow: 0 4px 16px 0 rgba(0,0,0,0.18);
}

.guess-circle {
    background: #f9fafc;
    border: 2px solid #d1d1d1;
    border-radius: 50%;
    box-shadow: 0 2px 8px 0 rgba(0,0,0,0.10);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #3a3a3a;
    transition: box-shadow 0.2s;
    color: white;
    flex-wrap: wrap;
    padding: 8px;
    box-sizing: border-box;
    text-align: center;
    overflow-wrap: break-word;
    word-break: break-word;
}
.guess-circle:hover {
    box-shadow: 0 4px 16px 0 rgba(0,0,0,0.18);
}

.guess-row {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    align-items: center;
    justify-items: center;
}

.guess-row.new {
    animation: row-slide-in 0.5s ease-out forwards;
}

.guess-row.new .guess-circle {
    opacity: 0;
    animation: circle-pop-in 0.4s ease-out forwards;
}

.guess-row.new .guess-circle:nth-child(1) { animation-delay: 0.1s; }
.guess-row.new .guess-circle:nth-child(2) { animation-delay: 0.2s; }
.guess-row.new .guess-circle:nth-child(3) { animation-delay: 0.3s; }
.guess-row.new .guess-circle:nth-child(4) { animation-delay: 0.4s; }
.guess-row.new .guess-circle:nth-child(5) { animation-delay: 0.5s; }

@keyframes row-slide-in {
    0% {
        opacity: 0;
        transform: translateY(-20px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes circle-pop-in {
    0% {
        opacity: 0;
        transform: scale(0.3);
    }
    50% {
        transform: scale(1.1);
    }
    100% {
        opacity: 1;
        transform: scale(1);
    }
}

.guess-header {
    font-weight: 600;
    color: #666;
    margin-bottom: 0px;
    margin-top: 10px;
    padding-bottom: 0%;
    padding-left: 30px;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.guess-circle.good {
    background-color: #00a629;
    border-color: #00a629;
}
.guess-circle.bad {
    background-color: #c20a0a;
    border-color: #c20a0a;
}
.guess-circle.mid {
    background-color: #cec105;
    border-color: #d5b902;
}
.guess-circle.natural {
    background-color: #0b74de;
    border-color: #0b74de;
}

.guess-circle.north {
    position: relative;
}
.guess-circle.north::before {
    content: '';
    position: absolute;
    top: 5px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-bottom: 6px solid #fff;
    z-index: 2;
    filter: drop-shadow(0 1px 2px rgba(0,0,0,0.10));
}
.guess-circle.south {
    position: relative;
}
.guess-circle.south::before {
    content: '';
    position: absolute;
    bottom: 5px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 6px solid #fff;
    z-index: 2;
    filter: drop-shadow(0 1px 2px rgba(0,0,0,0.10));
}
.guess-circle.east {
    position: relative;
}
.guess-circle.east::before {
    content: '';
    position: absolute;
    right: 5px;
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 0;
    border-top: 5px solid transparent;
    border-bottom: 5px solid transparent;
    border-left: 6px solid #fff;
    z-index: 2;
    filter: drop-shadow(0 1px 2px rgba(0,0,0,0.10));
}
.guess-circle.west {
    position: relative;
}
.guess-circle.west::before {
    content: '';
    position: absolute;
    left: 5px;
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 0;
    border-top: 5px solid transparent;
    border-bottom: 5px solid transparent;
    border-right: 6px solid #fff;
    z-index: 2;
    filter: drop-shadow(0 1px 2px rgba(0,0,0,0.10));
}

.guess-circle.northwest {
    position: relative;
}
.guess-circle.northwest::before {
    content: '';
    position: absolute;
    left: 22%;
    top: 22%;
    transform: translate(-50%, -50%);
    width: 0;
    height: 0;
    border-right: 7px solid transparent;
    border-top: 7px solid #fff;
    z-index: 2;
    filter: drop-shadow(0 1px 2px rgba(0,0,0,0.10));
}
.guess-circle.northeast {
    position: relative;
}
.guess-circle.northeast::before {
    content: '';
    position: absolute;
    right: 22%;
    top: 22%;
    transform: translate(-50%, -50%);
    width: 0;
    height: 0;
    border-left: 7px solid transparent;
    border-top: 7px solid #fff;
    z-index: 2;
    filter: drop-shadow(0 1px 2px rgba(0,0,0,0.10));
}
.guess-circle.southwest {
    position: relative;
}
.guess-circle.southwest::before {
    content: '';
    position: absolute;
    left: 22%;
    bottom: 22%;
    transform: translate(-50%, -50%);
    width: 0;
    height: 0;
    border-right: 7px solid transparent;
    border-bottom: 7px solid #fff;
    z-index: 2;
    filter: drop-shadow(0 1px 2px rgba(0,0,0,0.10));
}
.guess-circle.southeast {
    position: relative;
}
.guess-circle.southeast::before {
    content: '';
    position: absolute;
    right: 22%;
    bottom: 22%;
    transform: translate(50%, 50%);
    width: 0;
    height: 0;
    border-left: 7px solid transparent;
    border-bottom: 7px solid #fff;
    z-index: 2;
    filter: drop-shadow(0 1px 2px rgba(0,0,0,0.10));
}

#submit-button {
    cursor: pointer;
    font-size: 24px;
}

#hint-button {
    cursor: pointer;
    font-size: 24px;
    font-weight: bold;
}

#stats-button {
    cursor: pointer;
    font-size: 20px;
}

#submit-button,
#hint-button,
#stats-button {
    transition: transform 160ms var(--ease-out);
}

#submit-button:active,
#hint-button:active,
#stats-button:active {
    transform: scale(0.97);
}

#guess-input {
    font-size: 20px;
}

/* Custom Suggestions Dropdown */
#suggestions-container {
    position: absolute;
    bottom: 100%;
    left: 0;
    right: 0;
    max-height: 200px;
    overflow-y: auto;
    background-color: #ffffff;
    border: 2px solid #d1d1d1;
    border-radius: 12px;
    box-shadow: 0 -4px 16px 0 rgba(0,0,0,0.15);
    display: none;
    z-index: 1000;
    margin-bottom: 8px;
}

#suggestions-container.show {
    display: block;
}

.suggestion-item {
    padding: 12px 18px;
    cursor: pointer;
    font-size: 16px;
    color: #000000;
    background-color: #ffffff;
    border-bottom: 1px solid #e3e6ed;
    transition: background-color 0.15s;
}

.suggestion-item:first-child {
    border-radius: 10px 10px 0 0;
}

.suggestion-item:last-child {
    border-bottom: none;
    border-radius: 0 0 10px 10px;
}

.suggestion-item:only-child {
    border-radius: 10px;
}

.suggestion-item:hover {
    background-color: #f0f0f0;
}

.suggestion-item.selected {
    background-color: #0b74de;
    color: #ffffff;
}

/* Scrollbar styling for suggestions */
#suggestions-container::-webkit-scrollbar {
    width: 8px;
}

#suggestions-container::-webkit-scrollbar-track {
    background: #f0f0f0;
    border-radius: 4px;
}

#suggestions-container::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 4px;
}

#suggestions-container::-webkit-scrollbar-thumb:hover {
    background: #a1a1a1;
}

/* Confetti Animation */
#confetti-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    overflow: hidden;
    z-index: 9999;
}

.confetti {
    position: absolute;
    width: 10px;
    height: 10px;
    top: -10px;
    animation: confetti-fall linear forwards;
}

.confetti.square {
    border-radius: 0;
}

.confetti.circle {
    border-radius: 50%;
}

.confetti.ribbon {
    width: 8px;
    height: 20px;
    border-radius: 2px;
}

@keyframes confetti-fall {
    0% {
        transform: translateY(0) rotate(0deg) scale(1);
        opacity: 1;
    }
    100% {
        transform: translateY(100vh) rotate(720deg) scale(0.5);
        opacity: 0;
    }
}

/* Solution Iframe */
.solution-iframe-container {
    width: 100%;
    margin-top: 20px;
    border-radius: 18px;
    overflow: hidden;
    box-shadow: 0 4px 16px 0 rgba(0,0,0,0.15);
    background: #fff;
    animation: iframe-fade-in 0.6s ease-out forwards;
}

.solution-iframe {
    width: 100%;
    height: 300px;
    border: none;
    display: block;
}

@keyframes iframe-fade-in {
    0% {
        opacity: 0;
        transform: translateY(20px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

.stats-popup-overlay {
  position: fixed;
  inset: 0;
  background: rgba(10, 20, 30, 0.45);
  display: grid;
  place-items: center;
  z-index: 1000;
  padding: 16px;
}

.stats-popup {
  width: min(720px, 100%);
  background: #ffffff;
  border-radius: 14px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.22);
  padding: 18px;
}

.stats-popup-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
}

.stats-popup-title {
  margin: 0;
  font-size: 1.25rem;
  line-height: 1.3;
}

.stats-popup-close {
  border: 0;
  border-radius: 8px;
  padding: 8px 12px;
  cursor: pointer;
  background: #f0f3f6;
}

.stats-popup-summary {
  margin: 6px 0 14px;
  color: #344054;
}

.stats-chart {
  display: grid;
  gap: 8px;
}

.stats-chart-row {
  display: grid;
  grid-template-columns: 110px 1fr 36px;
  align-items: center;
  gap: 10px;
  font-size: 0.95rem;
}

.stats-chart-track {
  height: 12px;
  border-radius: 999px;
  background: #e6ecf2;
  overflow: hidden;
}

.stats-chart-fill {
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, #1e6aa8, #2d8fcb);
  transition: width 220ms ease;
}

.stats-chart-value {
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.stats-popup-tabs {
  display: inline-flex;
  gap: 6px;
  margin: 4px 0 12px;
  padding: 4px;
  border-radius: 10px;
  background: #eef3f7;
}

.stats-popup-tab {
  border: 0;
  border-radius: 8px;
  padding: 8px 12px;
  background: transparent;
  color: #415467;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 140ms ease, color 140ms ease, transform 120ms ease;
}

.stats-popup-tab:hover {
  background: #dfe8ef;
  color: #233241;
}

.stats-popup-tab.is-active {
  background: #ffffff;
  color: #123a5f;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.08);
}

.stats-popup-tab:focus-visible {
  outline: 2px solid #2d8fcb;
  outline-offset: 2px;
}

.stats-popup-kofi {
  display: block;
  margin-top: 14px;
  text-align: center;
}

.stats-popup-kofi img {
  transition: opacity 150ms ease;
}

.stats-popup-kofi:hover img {
  opacity: 0.85;
}
/* Invalid guess feedback */
.guess-error {
    color: #e65c44;
    font-size: 14px;
    text-align: center;
    margin-top: 6px;
}

.guess-error:empty {
    display: none;
}

#guess-input.shake {
    animation: guess-shake 280ms ease-in-out;
}

@keyframes guess-shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-4px); }
    60% { transform: translateX(4px); }
    80% { transform: translateX(-2px); }
}

/* Stats popup entrance (closing stays instant) */
.stats-popup-overlay {
    transition: opacity 200ms var(--ease-out);
}

.stats-popup {
    transition: transform 250ms var(--ease-out), opacity 250ms var(--ease-out);
}

@starting-style {
    .stats-popup-overlay { opacity: 0; }
    .stats-popup { opacity: 0; transform: scale(0.96); }
}

@media (prefers-reduced-motion: reduce) {
    #guess-input.shake { animation: none; }
    .stats-popup-overlay { transition-duration: 150ms; }
    .stats-popup { transition: opacity 150ms var(--ease-out); }
    @starting-style {
        .stats-popup { transform: none; }
    }
}