/*
  SHENSIST MATRIX · English Soul Robot V5
  Copyright (c) 2026 Shensist Matrix. All rights reserved.
*/
* {
  box-sizing: border-box;
}

:root {
  --crayon-red: #ff4d4d;
  --crayon-orange: #ffa500;
  --crayon-yellow: #f1c40f;
  --crayon-green: #2ecc71;
  --crayon-blue: #3498db;
  --crayon-purple: #9b59b6;
  --crayon-pink: #e84393;
  --bg-charcoal: #2a2a28;
  --bg-day: #e6e0d4; /* Sunlight paper tone */
  --bg-night: #121211; /* Deep night charcoal */
  --font-crayon: 'Permanent Marker', cursive;
  --font-hand: 'Indie Flower', cursive;
}

body.night-mode { background: var(--bg-night); }
body.day-mode { background: var(--bg-charcoal); } /* Keep charcoal but maybe add an overlay? */

.drawing-frame.night-mode { 
  background-color: var(--bg-night);
  background-blend-mode: overlay;
}
.drawing-frame.day-mode { 
  background-color: var(--bg-day);
  background-blend-mode: multiply;
  color: #333;
}

body {
  margin: 0;
  padding: 0;
  background: var(--bg-charcoal);
  width: 100vw;
  height: 100vh;
  overflow: hidden; /* Desktop remains fixed */
  display: flex;
  justify-content: center;
  align-items: center;
  font-family: var(--font-hand);
  -webkit-overflow-scrolling: touch; /* Smooth scroll for iOS */
}

.drawing-frame {
  width: 95vw;
  min-height: 90vh;
  height: auto;
  border: 10px solid #000;
  position: relative;
  background-image: url("https://www.transparenttextures.com/patterns/black-paper.png");
  padding: 20px;
  display: flex;
  flex-direction: column;
}

/* Use 100dvh for mobile height fallback */
@supports (height: 100dvh) {
  .drawing-frame {
    min-height: 100dvh;
  }
}

.drawing-panel {
  width: 100%;
  flex: 1;
  position: relative;
  display: flex;
  flex-direction: row;
}

/* Header */
.header-area {
  z-index: 20;
  padding-left: 140px; /* Space for the logo */
  box-sizing: border-box;
}

.header-logo {
  position: absolute;
  top: 15px;
  left: 20px;
  width: 100px;
  height: 100px; /* Fixed height for circle */
  z-index: 100;
  cursor: pointer;
  filter: drop-shadow(4px 4px 6px rgba(0,0,0,0.5));
  transition: transform 0.3s;
  border-radius: 50%; /* Circle shape */
  overflow: hidden;
  border: 3px solid #fff; /* White border to frame it */
  background: #fff;
}
.header-logo:hover { transform: scale(1.1); }
.header-logo img { 
  width: 110%; /* Slightly larger to hide image-internal borders */
  height: 110%;
  object-fit: cover;
  display: block;
  margin-left: -5%;
  margin-top: -5%;
}

#signal-light {
  position: absolute;
  top: 10px;
  left: 100px; /* Moved from 20px to avoid logo overlap */
  width: 25px;
  height: 25px;
  border: 3px solid #000;
  border-radius: 50%;
  background: #666; /* Default gray */
  filter: url(#pencil-rough);
  transition: background 0.5s ease, box-shadow 0.5s ease;
}

#signal-light.loading { background: #fee12b; animation: blink 1s infinite; }
#signal-light.status-green { background: #2ecc71; box-shadow: 0 0 10px #2ecc71; }
#signal-light.status-yellow { background: #f1c40f; box-shadow: 0 0 10px #f1c40f; }
#signal-light.status-red { background: #e74c3c; box-shadow: 0 0 10px #e74c3c; }

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}


.robot-title {
  font-family: var(--font-crayon);
  font-size: 4rem;
  margin: 0;
  display: flex;
  justify-content: center;
  gap: 15px;
  color: white;
}

.robot-title span:nth-child(1) { color: var(--crayon-red); }
.robot-title span:nth-child(2) { color: var(--crayon-orange); }
.robot-title span:nth-child(3) { color: var(--crayon-yellow); }
.robot-title span:nth-child(4) { color: var(--crayon-green); }
.robot-title span:nth-child(5) { color: var(--crayon-blue); }
.robot-title span:nth-child(6) { color: var(--crayon-purple); }
.robot-title span:nth-child(7) { color: var(--crayon-pink); }

.robot-tagline {
  font-size: 1.5rem;
  margin-top: 5px;
  color: #fff;
}

/* Robot: Clean Integration */
.robot-canvas {
  position: absolute;
  left: 5%;
  bottom: 10%; /* Lifted significantly to ensure feet are visible above the footer/scroll */
  width: 28vw; /* Scaled down further to match intended composition */
  height: auto;
  max-height: 70vh; /* Scaled back to 70vh to ensure breathing room */
  z-index: 10;
  transition: width 0.3s ease, bottom 0.3s ease;
  mix-blend-mode: screen; /* Lighten/glow into dark paper */
  background: transparent !important;
}

.hand-drawn-robot {
  width: 100%;
  height: auto;
  display: block;
  background: transparent !important;
  animation: robot-float 4s ease-in-out infinite;
}

@keyframes robot-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-15px); }
}

.hand-drawn-robot .eye {
  animation: eye-blink 5s infinite;
}

@keyframes eye-blink {
  0%, 90%, 100% { transform: scaleY(1); }
  95% { transform: scaleY(0.1); }
}

.hand-drawn-robot .arm.left {
  transform-origin: 55px 130px;
  animation: arm-wave-left 3s ease-in-out infinite;
}

.hand-drawn-robot .arm.right {
  transform-origin: 145px 130px;
  animation: arm-wave-right 3.5s ease-in-out infinite;
}

@keyframes arm-wave-left {
  0%, 100% { transform: rotate(0deg); }
  50% { transform: rotate(-5deg); }
}

@keyframes arm-wave-right {
  0%, 100% { transform: rotate(0deg); }
  50% { transform: rotate(8deg); }
}

/* Interaction Layer: Guaranteed High Contrast */
.interaction-node {
  position: absolute;
  top: 18%;
  right: 5%;
  width: 45vw;
  display: flex;
  flex-direction: column;
  z-index: 100;
}

.hand-drawn-bubble {
  background: #ffffff !important;
  color: #000000 !important;
  padding: 10px 40px;
  font-size: 1.8rem;
  border: 4px solid #000;
  margin-bottom: 30px;
  align-self: flex-start;
  margin-left: -50px;
  border-radius: 40px 40px 40px 5px;
}

.chalk-rect-box {
  background: #ffffff !important;
  width: 100%;
  padding: 20px;
  border: 5px solid #000;
  margin-bottom: 30px;
}

#input-word {
  width: 100%;
  border: none;
  background: transparent;
  font-size: 2rem;
  font-family: var(--font-hand);
  color: #000;
  outline: none;
  cursor: text;
}

.crayon-connect-btn {
  background: var(--crayon-yellow) !important;
  color: #000000 !important;
  border: 5px solid #000;
  padding: 10px 60px;
  font-size: 2.8rem;
  font-family: var(--font-crayon);
  transform: rotate(-3deg);
  cursor: pointer;
  box-shadow: 6px 6px 0px #000;
}

/* Decoratives */
.ambient-decorations { pointer-events: none; }
.deco { position: absolute; z-index: 5; }
.deco.star { 
  color: var(--crayon-yellow); 
  font-size: 1.5rem; 
  transition: opacity 2s ease;
  z-index: 5;
}
.night-mode .deco.star {
  animation: star-twinkle 3s infinite ease-in-out;
}
@keyframes star-twinkle {
  0%, 100% { opacity: 0.3; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.2); filter: drop-shadow(0 0 5px #fff); }
}

.deco.planet { font-size: 3rem; opacity: 0.8; }
.deco.gear { font-size: 4rem; opacity: 0.3; }

/* 零件箱 (Badge Hub) */
.component-box {
  position: absolute;
  bottom: 20px;
  left: 30px;
  width: 100px;
  height: 80px;
  z-index: 50;
  cursor: pointer;
  transition: transform 0.2s;
}
.component-box:hover { transform: scale(1.1); }
.component-box svg { width: 100%; height: 100%; filter: drop-shadow(4px 4px 0px #000); }

.badge-fly-animation {
  animation: badge-fly 1s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
}
@keyframes badge-fly {
  0% { transform: translate(-100px, 100px) rotate(0deg) scale(0); opacity: 0; }
  100% { transform: translate(0, 0) rotate(360deg) scale(1); opacity: 1; }
}

.footer-panel {
  position: absolute;
  bottom: 0;
  width: 100%;
  height: 120px;
}

.dashed-pencil-line {
  width: 100%;
  border-top: 4px dashed rgba(255,255,255,0.4);
  margin-bottom: 10px;
}

.paper-scroll {
  position: absolute;
  right: 2%;
  bottom: 0px;
  width: 400px;
  padding: 15px 30px;
  background: #ffffff !important;
  color: #000000 !important;
  border: 4px solid #000;
  font-size: 1.4rem;
}

.robotic-hand-pointer {
  position: absolute;
  bottom: 5px;
  right: 480px;
  width: 100px;
  height: 60px;
  background-image: url('assets/pointing_hand.svg');
  background-size: contain;
  background-repeat: no-repeat;
}

.eye-glow {
  fill: var(--crayon-yellow) !important;
  filter: drop-shadow(0 0 8px var(--crayon-yellow));
  animation: eye-pulse 0.8s infinite;
}

@keyframes eye-pulse {
  0%, 100% { filter: drop-shadow(0 0 5px var(--crayon-yellow)); transform: scale(1); }
  50% { filter: drop-shadow(0 0 15px var(--crayon-yellow)); transform: scale(1.1); }
}

.crayon-connect-btn:active {
  transform: translateY(4px) scale(0.95);
  box-shadow: 2px 2px 0px rgba(0,0,0,0.3);
}

/* Official Footer */
.site-footer {
  position: fixed;
  bottom: 0px;
  left: 0;
  width: 100%;
  padding: 12px 0;
  background: rgba(0,0,0,0.7); /* Darker for better text visibility */
  color: #fff; /* White text for clarity */
  font-family: var(--font-hand);
  text-align: center;
  font-size: 1.1rem;
  z-index: 2000; /* Extremely high to stay on top */
  backdrop-filter: blur(8px);
  border-top: 2px solid rgba(255,255,255,0.2);
  letter-spacing: 1px;
}

.site-footer a {
  color: var(--crayon-yellow);
  text-decoration: none;
  font-weight: bold;
}
.site-footer a:hover { color: #fff; text-decoration: underline; }

@media (max-width: 768px) {
  body {
    height: auto;
    min-height: 100dvh;
    overflow-x: hidden; /* Prevent horizontal scroll */
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
  }

  .drawing-frame {
    width: 100%; /* Fill available width safely */
    max-width: 100vw;
    padding: 15px;
    border-width: 5px;
    height: auto;
    min-height: 100dvh;
    margin: 0;
  }

  .drawing-panel {
    flex-direction: column;
    align-items: center;
    overflow-y: visible; /* Let body handle scroll */
    padding-top: 20px; /* Reduced from 80px */
  }

  .header-area {
    padding-left: 0; /* Remove the 140px desktop padding */
    text-align: center;
    width: 100%;
    margin-top: 60px; /* Space for the absolute logo above */
  }

  .robot-title {
    font-size: 1.8rem; /* Further reduced from 2.5rem to prevent offset */
    gap: 5px;
    width: 100%;
    justify-content: center;
    flex-wrap: wrap; /* Allow wrapping if needed */
  }

  .robot-tagline {
    font-size: 0.9rem;
    text-align: center;
  }

  .robot-canvas {
    position: relative;
    width: 85vw; /* Increased from 50vw */
    left: auto;
    margin-bottom: 20px;
  }

  .interaction-node {
    position: relative;
    width: 90%;
    right: auto;
    top: auto;
    margin: 0 auto;
  }

  .hand-drawn-bubble {
    font-size: 1.2rem;
    margin-left: 0;
    width: 100%;
    box-sizing: border-box;
  }

  .crayon-connect-btn {
    font-size: 2rem;
    padding: 10px 40px;
    width: 100%;
  }

  .footer-panel {
    position: relative;
    width: 100%;
    bottom: auto;
    margin-top: 40px;
    height: auto;
  }

  .paper-scroll {
    position: relative;
    width: 100%;
    right: auto;
    box-sizing: border-box;
    margin-bottom: 20px;
  }

  .robotic-hand-pointer {
    display: none; /* Hide floating hand on small screens to save space */
  }

  /* Reposition decorations for vertical orientation */
  .deco.planet { font-size: 2rem; }
  .deco.gear { font-size: 2.5rem; }
  
  .header-logo { width: 60px; height: 60px; top: 10px; left: 10px; }

  .component-box {
    position: relative;
    bottom: auto;
    left: auto;
    margin: 20px auto;
    width: 60px;
    height: 50px;
  }

  .site-footer {
    position: relative;
    margin-top: 20px;
    font-size: 0.8rem;
    padding: 15px 5px;
  }
}

.site-footer a {
  color: inherit;
  text-decoration: none;
  font-weight: bold;
}
.site-footer a:hover { color: #fff; }