.doodle-wrapper {
  /* Color Palette */
  --ink: #323232;
  --paper-front: #fff9e6;
  --paper-back: #e6f0ff;
  --bg-color: #ffffff;
  --primary-btn: #ff6b6b;
  --primary-btn-hover: #ff5252;
  --secondary-btn: #4ecdc4;
  --secondary-btn-hover: #3bbfb6;
  --switch-bg: #ffe66d;
  --input-focus: #2d8cf0;

  /* Sizing */
  --card-width: 300px;
  --card-height: 350px;
  --input-width: 250px;
  --input-height: 40px;
  --btn-width: 120px;
  --btn-height: 40px;

  --border-width: 2px;
  --shadow-offset: 4px;

  /* Doodle Border Radiuses */
  --sketch-radius-1: 8px 24px 8px 24px / 24px 8px 24px 8px;
  --sketch-radius-2: 24px 8px 24px 8px / 8px 24px 8px 24px;
  --sketch-radius-btn: 16px 5px 16px 5px / 5px 16px 5px 16px;

  font-family: "Comic Sans MS", "Chalkboard SE", "Marker Felt", "Gochi Hand",
    sans-serif;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  box-sizing: border-box;
}

/* Hide Checkbox Visually but keep accessible */
.doodle-toggle {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

/* Header & Switch */
.doodle-header {
  display: flex;
  align-items: center;
  gap: 15px;
  margin-bottom: 25px;
  z-index: 5;
}

.doodle-mode-text {
  font-size: 18px;
  font-weight: bold;
  color: var(--ink);
  transition: opacity 0.3s;
}

.doodle-toggle:not(:checked) ~ .doodle-header .signup-text {
  opacity: 0.5;
}
.doodle-toggle:checked ~ .doodle-header .login-text {
  opacity: 0.5;
}

.doodle-switch-label {
  position: relative;
  display: inline-block;
  width: 50px;
  height: 24px;
  background-color: var(--switch-bg);
  border: var(--border-width) solid var(--ink);
  border-radius: 20px;
  cursor: pointer;
  box-shadow: 2px 2px 0px var(--ink);
  transition:
    transform 0.1s,
    box-shadow 0.1s;
}

.doodle-switch-label:active {
  transform: translate(2px, 2px);
  box-shadow: 0px 0px 0px var(--ink);
}

.doodle-switch-handle {
  position: absolute;
  top: 2px;
  left: 3px;
  width: 16px;
  height: 16px;
  background-color: var(--bg-color);
  border: var(--border-width) solid var(--ink);
  border-radius: 50%;
  transition: transform 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.doodle-toggle:checked
  ~ .doodle-header
  .doodle-switch-label
  .doodle-switch-handle {
  transform: translateX(24px);
}

/* 3D Scene Setup */
.doodle-card-scene {
  position: relative;
  perspective: 1000px;
  width: var(--card-width);
  height: var(--card-height);
  z-index: 2;
}

/* Decorative SVGs */
.doodle-svg {
  position: absolute;
  z-index: -1;
  pointer-events: none;
}
.doodle-star {
  top: -25px;
  left: -35px;
  width: 48px;
  height: 48px;
  animation: float-star 4s ease-in-out infinite;
}
.doodle-sparkle {
  bottom: -20px;
  right: -25px;
  width: 40px;
  height: 40px;
  animation: float-sparkle 4s ease-in-out infinite 1s;
}
.doodle-swirl {
  top: 30px;
  right: -30px;
  width: 32px;
  height: 32px;
  animation: float-swirl 4s ease-in-out infinite 2s;
}

/* Individual animations to preserve their rotations */
@keyframes float-star {
  0%,
  100% {
    transform: translateY(0) rotate(-15deg);
  }
  50% {
    transform: translateY(-8px) rotate(-10deg);
  }
}
@keyframes float-sparkle {
  0%,
  100% {
    transform: translateY(0) rotate(10deg);
  }
  50% {
    transform: translateY(-8px) rotate(15deg);
  }
}
@keyframes float-swirl {
  0%,
  100% {
    transform: translateY(0) rotate(0deg);
  }
  50% {
    transform: translateY(-8px) rotate(5deg);
  }
}

/* Card Inner & Faces */
.doodle-card-inner {
  width: 100%;
  height: 100%;
  position: relative;
  transform-style: preserve-3d;
  transition: transform 0.8s cubic-bezier(0.4, 0.2, 0.2, 1);
}

.doodle-toggle:checked ~ .doodle-card-scene .doodle-card-inner {
  transform: rotateY(180deg);
}

.doodle-card-front,
.doodle-card-back {
  position: absolute;
  width: 100%;
  height: 100%;
  backface-visibility: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 20px;
  box-sizing: border-box;
  border: var(--border-width) solid var(--ink);
  border-radius: var(--sketch-radius-1);
  box-shadow: var(--shadow-offset) var(--shadow-offset) 0px var(--ink);

  /* Lined Notebook Paper Effect */
  background-image: repeating-linear-gradient(
    transparent,
    transparent 28px,
    rgba(0, 0, 0, 0.06) 28px,
    rgba(0, 0, 0, 0.06) 30px
  );
  background-position: 0 15px;
}

.doodle-card-front {
  background-color: var(--paper-front);
}

.doodle-card-back {
  background-color: var(--paper-back);
  transform: rotateY(180deg);
  border-radius: var(--sketch-radius-2);
}

/* Typography & Forms */
.doodle-title {
  font-size: 25px;
  font-weight: 900;
  color: var(--ink);
  margin: 10px 0 20px 0;
  text-transform: uppercase;
  letter-spacing: 1px;
  transform: rotate(-3deg);
  text-shadow: 1px 1px 0px rgba(0, 0, 0, 0.1);
}

.doodle-title-alt {
  transform: rotate(2deg);
  margin: 0px 0 15px 0;
}

.doodle-form {
  display: flex;
  flex-direction: column;
  gap: 15px;
  width: 100%;
  align-items: center;
}

.doodle-input-wrapper {
  position: relative;
}

/* Inputs */
.doodle-input {
  width: var(--input-width);
  height: var(--input-height);
  padding: 5px 15px;
  box-sizing: border-box;
  font-family: inherit;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  background-color: var(--bg-color);
  border: var(--border-width) solid var(--ink);
  border-radius: var(--sketch-radius-1);
  box-shadow: 3px 3px 0px var(--ink);
  outline: none;
  transition: all 0.2s ease;
}

.doodle-input::placeholder {
  color: #666;
  opacity: 0.8;
}

.doodle-input:hover {
  transform: translateY(-2px);
  box-shadow: 4px 4px 0px var(--ink);
}

.doodle-input:focus,
.doodle-input:focus-visible {
  border: var(--border-width) solid var(--input-focus);
  border-radius: var(--sketch-radius-2);
  background-color: #fffdf5;
  box-shadow: 4px 4px 0px var(--ink);
}

/* Buttons */
.doodle-btn {
  margin: 15px 0;
  width: var(--btn-width);
  height: var(--btn-height);
  font-family: inherit;
  font-size: 17px;
  font-weight: 900;
  letter-spacing: 1px;
  color: var(--ink);
  background-color: var(--primary-btn);
  border: var(--border-width) solid var(--ink);
  border-radius: var(--sketch-radius-btn);
  box-shadow: 4px 4px 0px var(--ink);
  cursor: pointer;
  transition: all 0.15s ease;
  transform: rotate(-1deg);
}

.doodle-btn-alt {
  background-color: var(--secondary-btn);
  transform: rotate(1deg);
}

/* Button States */
.doodle-btn:hover {
  background-color: var(--primary-btn-hover);
  transform: translateY(-2px) rotate(-2deg);
  box-shadow: 5px 5px 0px var(--ink);
}

.doodle-btn-alt:hover {
  background-color: var(--secondary-btn-hover);
  transform: translateY(-2px) rotate(2deg);
}

.doodle-btn:active {
  transform: translate(3px, 3px) rotate(0deg);
  box-shadow: 0px 0px 0px var(--ink);
}

/* Title Wiggle on Hover */
.doodle-card-scene:hover .doodle-title {
  animation: doodle-wiggle 0.5s ease-in-out;
}

@keyframes doodle-wiggle {
  0%,
  100% {
    transform: rotate(-3deg);
  }
  25% {
    transform: rotate(2deg);
  }
  50% {
    transform: rotate(-4deg);
  }
  75% {
    transform: rotate(1deg);
  }
}