@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;700&family=Share+Tech+Mono&display=swap');

html, *, *::before, *:after {
    box-sizing: border-box;
    margin: 0;
    border: 0;
    padding: 0;
    background: none;
}

html {
    font-size: 20px;
    height: 100%;
    width: 100%;
}

:root {
    --dark-sky: rgb(15, 9, 52);
    --dark-purple: rgb(20, 24, 82);
    --purple: rgb(43, 47, 119);
    --dark-violet: rgb(72, 52, 117);
    --medium-violet: rgb(107, 73, 132);
    --mute-violet: rgb(133, 89, 136);
    --violet: violet;
    
    /* Bracket colors */
    --bracket-border: rgba(130, 50, 240, 0.7);
    
    /* Input field colors */
    --input-text: #e0aaff;
    --input-text-shadow: rgba(200, 100, 255, 0.65);
    --input-bg: rgba(8, 2, 24, 0.88);
    --input-border: rgba(140, 50, 255, 0.42);
    --input-box-shadow-outer: rgba(120, 0, 220, 0.22);
    --input-box-shadow-inset: rgba(180, 100, 255, 0.3);
    --input-placeholder: rgba(170, 90, 240, 0.38);
    --input-focus-border: rgba(190, 80, 255, 0.82);
    --input-focus-shadow-outer: rgba(150, 0, 255, 0.42);
    --input-focus-shadow-mid: rgba(100, 0, 200, 0.18);
    --input-focus-shadow-inset: rgba(220, 160, 255, 0.45);
    
    /* Scan bar colors */
    --scanbar-light: rgba(160, 60, 255, 0.2);
    --scanbar-bright: rgba(210, 90, 255, 0.85);
    
    /* Button colors */
    --btn-text: #ddb8ff;
    --btn-text-shadow: rgba(220, 150, 255, 0.8);
    --btn-bg-top: rgba(90, 10, 180, 0.72);
    --btn-bg-bottom: rgba(50, 0, 130, 0.88);
    --btn-border: rgba(160, 60, 255, 0.62);
    --btn-shadow-outer: rgba(130, 0, 255, 0.38);
    --btn-shadow-inset: rgba(200, 140, 255, 0.45);
    --btn-sweep: rgba(200, 130, 255, 0.13);
    --btn-hover-border: rgb(210, 110, 255);
    --btn-hover-shadow-outer: rgba(160, 20, 255, 0.6);
    --btn-hover-shadow-inset: rgba(230, 170, 255, 0.5);
    --btn-hover-text: #f0d4ff;
    
    /* Star colors */
    --star-color: #c4a0f0;
    --star-hover: #ffffff;
    --star-time: #9070b0;
}

body {
    background-image: radial-gradient(circle at 100% 0%, var(--dark-sky), var(--purple), var(--dark-sky) 50%, var(--dark-purple), var(--purple), var(--dark-violet) 80%, var(--dark-sky));
    font-family: 'Orbitron', monospace;
    display: flex;
    flex-flow: column nowrap;
    align-items: center;
    height: 100%;
    width: 100%;
    overflow: hidden;
}

#stars {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 0;
}

#moon {
    position: absolute;
    top: 10%;
    right: 20%;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    z-index: 0;
    animation: moon 300s linear infinite;
  }

  #mars {
    position: absolute;
    top: 60%;
    right: -10%;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    animation: planetRotate 800s linear infinite;
  }

  #earth {
    position: absolute;
    top: -5%;
    left: 0;
    height: 140%;
    z-index: 1;
    animation: planetMove 20s ease-in-out infinite;
  }

  @keyframes planetMove {
    0% { transform: translate(0, 0); }
    25% { transform: translate(-4px, -5px); }
    50% { transform: translate(0, -10px); }
    75% { transform: translate(-10px, -5px); }
    100% { transform: translate(0, 0); }
  }

  @keyframes planetRotate {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
  }

  @keyframes moon {
    0% { transform: translate(0, 0) rotate(0deg); }
    25% { transform: translate(-4px -5px) rotate(-90deg); }
    50% { transform: translate(0, -10px) rotate(-180deg); }
    75% { transform: translate(-10px, -5px) rotate(-270deg); }
    100% { transform: translate(0, 0) rotate(-360deg); }
  }


/*** main ***/
main{
    display: flex;
    flex-direction: column;
    justify-content: end;
    align-items: center;
    width: 100%;
    height: 100%;
    overflow: hidden;
    position: relative;
}

/* ---------- Log Ship ---------- */
#log-ship {
    position: absolute;
    z-index: 8;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    background: var(--dark-sky);
}

#log-ship input {
    width: 240px;
}

#log-ship button {
    width: 240px;
}

/* ---------- Interface ---------- */

#interface {
    z-index: 5;
}

.uplink {
    margin: 0 0 1rem 0;
    color: var(--star-hover);
    font-size: 0.75rem;
    text-shadow: 0 0 10px var(--btn-text-shadow);
    animation: inputFlicker 0.4s infinite;
    letter-spacing: 0.125rem;
}

#header {
    position: relative;
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    margin: 0.5rem 0 2rem 0;
    color: var(--btn-hover-border);
    letter-spacing: 0.125rem;
    font-size: 0.75rem;
    text-shadow: 0 0 10px var(--btn-text-shadow), 0 0 2px var(--star-time);
}

#header p {
    animation: inputFlicker 0.3s infinite;
    animation-delay: 0.1s;
}

#time {
    animation: inputFlicker 0.3s infinite;
}

#input-field {
    display: grid;
    grid-template-areas:
        'message message'
        'send send';
    grid-gap: 1rem;
    align-items: center;
}

.input-wrap {
    position: relative;
}
.input-wrap#wrap-name    { grid-area: name; }
.input-wrap#wrap-message { grid-area: message; }

.scan-bar {
    opacity: 0;
    position: absolute;
    left: 1px; right: 1px;
    height: 2px;
    background: linear-gradient(90deg,
        transparent 0%,
        var(--scanbar-light) 0%,
        var(--scanbar-bright) 50%,
        var(--scanbar-light) 100%,
        transparent 100%
    );
    pointer-events: none;
    z-index: 4;
    filter: blur(0.4px);
    animation: scanBar 2.6s cubic-bezier(0.45,0,0.55,1) infinite;
}
@keyframes scanBar {
    0%   { top: 1px; opacity: 0; }
    5%   { opacity: 1; }
    45%  { opacity: 1; }
    50%  { top: calc(100% - 3px); opacity: 0; }
    55%  { opacity: 1; }
    91%  { opacity: 1; }
    100% { top: 1px; opacity: 0; }
}

.bracket {
    position: absolute;
    width: 8px; height: 8px;
    border-color: var(--input-focus-border);
    border-style: solid;
    pointer-events: none;
    z-index: 5;
    transition: all 0.15s cubic-bezier(0.75,0,0.25,1);
}
.bracket.tl { top: -1px; left: -1px;  border-width: 2px 0 0 2px; }
.bracket.tr { top: -1px; right: -1px; border-width: 2px 2px 0 0; }
.bracket.bl { bottom: -1px; left: -1px;  border-width: 0 0 2px 2px; }
.bracket.br { bottom: -1px; right: -1px; border-width: 0 2px 2px 0; }

.input-wrap:hover .bracket.tl { top: -10px; left: -10px; }
.input-wrap:hover .bracket.tr { top: -10px; right: -10px; }
.input-wrap:hover .bracket.bl { bottom: -10px; left: -10px; }
.input-wrap:hover .bracket.br { bottom: -10px; right: -10px; }

.c-trans.focus .bracket.tl { top: -4px; left: -4px; border-width: 3px 0 0 3px; }
.c-trans.focus .bracket.tr { top: -4px; right: -4px; border-width: 3px 3px 0 0; }
.c-trans.focus .bracket.bl { bottom: -4px; left: -4px; border-width: 0 0 3px 3px; }
.c-trans.focus .bracket.br { bottom: -4px; right: -4px; border-width: 0 3px 3px 0; }

.c-trans {
    height: 40px;
    width: 100%;
    padding: 0 14px;
    font-size: 0.625rem;
    font-family: 'Share Tech Mono', monospace;
    letter-spacing: 0.06em;
    color: var(--input-text);
    text-shadow: 0 0 8px var(--input-text-shadow);
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    box-shadow:
        0 0 18px var(--input-box-shadow-outer),
        0 0 1px var(--input-box-shadow-inset) inset;
    outline: none;
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
    transition: border-color 0.22s, box-shadow 0.22s, background 0.22s;
    animation: inputFlicker 0.25s infinite;
}
@keyframes inputFlicker {
    0%, 100% { opacity: 1; }
    38%       { opacity: 0.9; }
    39%       { opacity: 1; }
    76%       { opacity: 0.85; }
    77%       { opacity: 1; }
}

.c-trans::placeholder {
    color: var(--input-placeholder);
    font-style: italic;
}

.c-trans:focus {
    outline: none;
    border-color: var(--input-focus-border);
    background: var(--input-bg);
    box-shadow:
        0 0 26px var(--input-focus-shadow-outer),
        0 0 50px var(--input-focus-shadow-mid),
        0 0 3px var(--input-focus-shadow-inset) inset;
}

#enter-name { grid-area: name; }
#message    { grid-area: message; }

.send {
    height: 40px;
    padding: 0 20px;
    border-radius: 3px;
    cursor: crosshair;
    grid-area: send;
    font-family: 'Orbitron', monospace;
    font-size: 0.5rem;
    font-weight: 700;
    letter-spacing: 0.38em;
    text-transform: uppercase;
    color: var(--btn-text);
    text-shadow: 0 0 10px var(--btn-text-shadow), 0 0 20px var(--btn-text-shadow);
    background: linear-gradient(180deg,
        var(--btn-bg-top) 0%,
        var(--btn-bg-bottom) 100%
    );
    border: 1px solid var(--btn-border);
    box-shadow:
        0 0 16px var(--btn-shadow-outer),
        0 0 1px var(--btn-shadow-inset) inset;
    position: relative;
    overflow: hidden;
    animation: btnF 0.15s steps(1) infinite;
    transition: border-color 0.2s, box-shadow 0.2s;
}
@keyframes btnF {
    0%, 100% { opacity: 1; }
    36%       { opacity: 0.94; }
    72%       { opacity: 0.97; }
}

.send::before {
    content: '';
    position: absolute;
    top: 0; left: -100%; width: 55%; height: 100%;
    background: linear-gradient(90deg, transparent, var(--btn-sweep), transparent);
    animation: sweep 3.2s ease-in-out infinite;
    pointer-events: none;
}
@keyframes sweep { 0% { left: -55%; } 100% { left: 160%; } }

.send::after {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--btn-text-shadow), transparent);
}

.send:hover {
    border-color: var(--btn-hover-border);
    box-shadow:
        0 0 26px var(--btn-hover-shadow-outer),
        0 0 2px var(--btn-hover-shadow-inset) inset;
    color: var(--btn-hover-text);
}

.send:active { transform: scale(0.985); }

#message-sent {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--btn-hover-text);
    font-size: 1.5rem;
    text-shadow: 0 0 20px var(--btn-hover-text);
    animation: sentF 1.2s ease-out forwards;
    pointer-events: none;
    background: linear-gradient(180deg, var(--btn-bg-top) 0%, var(--btn-bg-bottom) 100%);
    border: 1px solid var(--btn-border);
    padding: 20px 40px;
    text-transform: uppercase;
    letter-spacing: 3px;
    opacity: 0;
    transition: opacity 0.3s ease-in-out;
}

#message-sent.visible {
    opacity: 1;
}

@media (min-width: 820px) {
    #input-field {
        grid-template-areas: 'message send';
        grid-template-columns: auto auto;
    }
    #message { width: 400px; }
}

/* ---------- Message Stars ---------- */
#content {
  position: relative;
}

.message-star {
  position: absolute;
  cursor: crosshair;
  font-size: 1rem;
  color: var(--star-color);
  transform: translate(-50%, -50%);
  transition: transform 0.2s, color 0.2s;
  z-index: 5;
  animation: starMessageGlow 10000ms ease-in-out infinite;
}

.message-star:hover .bracket.tl { top: -10px; left: -10px; }
.message-star:hover .bracket.tr { top: -10px; right: -10px; }
.message-star:hover .bracket.bl { bottom: -10px; left: -10px; }
.message-star:hover .bracket.br { bottom: -10px; right: -10px; }

#alert {
    animation: alert 1s ease-in-out infinite;
}

@keyframes alert {
    0%, 100% {
        border-color: white;
        transform: scale(1); 
    }
    50% {
        border-color: var(--btn-hover-border);
        transform: scale(1.3);
    }
}

/* Tooltip hidden by default */
#star-tooltip {
  display: flex;
  position: fixed;
  height: 700px;
  width: 300px;
  bottom: 1.5rem;
  left: 1.5rem;
  z-index: 9;
  flex-direction: column;
  gap: 4px;
  padding: 8px 0px 0px 16px;
  pointer-events: none;
  font-size: 0.625rem;
  font-family: 'Share Tech Mono', monospace;
  letter-spacing: 0.06em;
  color: var(--input-text);
  text-shadow: 0 0 8px var(--input-text-shadow);
  background: var(--input-bg);
  border: 1px solid var(--input-focus-border);;
  box-shadow:
      0 0 18px var(--input-box-shadow-outer),
      0 0 1px var(--input-box-shadow-inset) inset;
  visibility: hidden;
  opacity: 0;
  overflow-x: hidden;
}

#close {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 20px;
  height: 20px;
  cursor: crosshair;
  color: var(--input-text);
  pointer-events: auto;
  flex-shrink: 0;
}

#star-tooltip.visible {
  visibility: visible;
  opacity: 1;
  pointer-events: auto;
}

.star-name {
  font-weight: bold;
  font-family: 'Orbitron', monospace;
  text-transform: uppercase;
  font-size: 1rem;
  padding-bottom: 1.5rem;
  color: var(--btn-hover-text);
  flex-shrink: 0;
}

.star-name::after {
  content: '';
  display: block;
  position: absolute;
  width: 100%;
  height: 2px;
  background: linear-gradient(
    90deg, 
    transparent 0%, 
    var(--scanbar-light) 0%, 
    var(--scanbar-bright) 50%, 
    var(--scanbar-light) 100%, 
    transparent 100%
    );
  top: 58px;
}

.star-details {
  flex: 1;
  overflow-y: auto;
  min-height: 0;
  padding-right: 5px;
}

.star-details::-webkit-scrollbar {
  width: 8px;
}

.star-details::-webkit-scrollbar-track {
  background: rgba(8, 2, 24, 0.5);
}

.star-details::-webkit-scrollbar-thumb {
  background: rgba(130, 50, 240, 0.6);
  transition: background 0.2s;
}

.star-details::-webkit-scrollbar-thumb:hover {
  background: rgba(190, 80, 255, 0.8);
}

.star-message {
  color: var(--input-text);
  margin-bottom: 0.5rem;
  transition: color 0.3s, text-shadow 0.3s, letter-spacing 0.3s;
  cursor: pointer;
}

@keyframes starMessageGlow {
  0% { 
    transform: translate(0, 0);
  }
  25% { 
    transform: translate(1px, -3px);
  }
  50% { 
    transform: translate(0, -2px);
  }
  75% { 
    transform: translate(-1px, -5px);
  }
  100% { 
    transform: translate(0, 0);
  }
}

.star-time {
  font-size: 0.75rem;
  color: var(--star-time);
  margin-bottom: 1rem;
}


/* ---------- Not Found ---------- */
#not-found {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10;
    background: skyblue;
}

#not-found h1 {
    font-size: 8rem;
    line-height: 7rem;
}

#not-found h3 {
    font-size: 2rem;
}

#not-found p {
    margin-top: 2rem;
}