:root {
  --palette-primary: #0a1325;
  --palette-text: #ffffff;
  --palette-accent: #2563eb;
  --palette-accent-dark: #4f46e5;
  --palette-bg-light: #f8fafc;
  --page-bg: #74759c;
  --palette-text: #111827;
  --elev-1: 0 10px 30px rgba(16, 24, 40, 0.06);
  --elev-2: 0 18px 40px rgba(16, 24, 40, 0.09);
  --muted: rgba(17, 24, 39, 0.45);
  --success: #16a34a;
  --warning: #f59e0b;
  --danger: #ef4444;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Poppins", sans-serif;
}

body {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  background: #fff;
  color: var(--palette-text);
}

.container {
  position: relative;
  width: 1050px;
  height: 750px;
  background: #fff;
  margin: 20px;
  border-radius: 30px;
  box-shadow: 0 0 30px rgba(0, 0, 0, 0.2);
  overflow: hidden;
}

.container h1 {
  font-size: 36px;
  margin: -10px 0;
  color: var(--palette-text);
}

.container p {
  font-size: 14.5px;
  margin: 15px 0;
}

form {
  width: 100%;
}

.form-box {
  position: absolute;
  right: 0;
  width: 50%;
  height: 100%;
  background: #fff;
  display: flex;
  align-items: center;
  color: var(--palette-text);
  text-align: center;
  padding: 40px;
  z-index: 1;
  transition:
    0.6s ease-in-out 1.2s,
    visibility 0s 1s;
}

.container.active .form-box {
  right: 50%;
}

.form-box.register {
  visibility: hidden;
}
.container.active .form-box.register {
  visibility: visible;
}

.input-box {
  position: relative;
  margin: 30px 0;
}

.input-box input {
  width: 100%;
  padding: 13px 50px 13px 20px;
  background: #fff;
  border-radius: 8px;
  border: 1px solid #e0e0e0;
  font-size: 16px;
  color: var(--palette-primary);
  font-weight: 500;
}

.input-box input::placeholder {
  color: #888;
  font-weight: 400;
}

.input-box i {
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 20px;
}
.indicator {
  display: flex;
  align-items: flex-start;
  font-weight: bold;
}

.forgot-link {
  margin: -15px 0 15px;
}

.forgot-link a {
  font-size: 14.5px;
  color: var(--palette-primary);
  text-decoration: none;
}

.btn {
  width: 100%;
  height: 48px;
  background: var(--palette-accent);
  border-radius: 8px;
  border: none;
  cursor: pointer;
  font-size: 16px;
  color: #fff;
  font-weight: 600;
  transition: background 0.3s ease;
}

.btn:hover {
  background: var(--palette-accent-dark);
  color: #fff;
}

.social-icons {
  display: flex;
  justify-content: center;
}

.social-icons a {
  display: inline-flex;
  padding: 10px;
  border: 2px solid #e0e0e0;
  border-radius: 8px;
  font-size: 24px;
  color: #111;
  margin: 0 8px;
}

.toggle-box {
  position: absolute;
  width: 100%;
  height: 100%;
}

.toggle-box::before {
  content: "";
  position: absolute;
  left: -250%;
  width: 300%;
  height: 100%;
  background: var(--palette-primary);
  border-radius: 150px;
  z-index: 2;
  transition: 1.8s ease-in-out;
}

.container.active .toggle-box::before {
  left: 50%;
}

.toggle-panel {
  position: absolute;
  width: 50%;
  height: 100%;
  color: #fff;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  z-index: 2;
  transition: 0.6s ease-in-out;
  text-align: center;
  padding: 20px;
}

.toggle-panel.toggle-left {
  left: 0;
  transition-delay: 1.2s;
}

.container.active .toggle-panel.toggle-left {
  left: -50%;
  transition-delay: 0.6s;
}

.toggle-panel.toggle-right {
  right: -50%;
  transition-delay: 0.6s;
}

.container.active .toggle-panel.toggle-right {
  right: 0;
  transition-delay: 1.2s;
}

.toggle-panel h1 {
  font-size: 32px;
  color: #fff;
}

.toggle-panel p {
  margin: 20px 0;
}

.toggle-panel .btn {
  width: 160px;
  height: 46px;
  background: transparent;
  border: 2px solid #fff;
  box-shadow: none;
  color: #fff;
}

.notification {
  position: fixed;
  top: 30px;
  left: 50%;
  transform: translateX(-50%);
  background: #2ecc71;
  color: #fff;
  padding: 16px 32px;
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
  font-size: 1.1rem;
  font-weight: 600;
  z-index: 9999;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s;
}
.notification.show {
  opacity: 1;
  pointer-events: auto;
}
.notification.error {
  background: #e74c3c;
  color: #fff;
}

@media screen and (max-width: 650px) {
  .container {
    height: calc(100vh - 40px);
  }

  .form-box {
    bottom: 0;
    width: 100%;
    height: 70%;
  }

  .container.active .form-box {
    right: 0;
    bottom: 30%;
  }

  .toggle-box::before {
    left: 0;
    top: -270%;
    width: 100%;
    height: 300%;
    border-radius: 20vw;
  }

  .container.active .toggle-box::before {
    left: 0;
    top: 70%;
  }

  .container.active .toggle-panel.toggle-left {
    left: 0;
    top: -30%;
  }

  .toggle-panel {
    width: 100%;
    height: 30%;
  }

  .toggle-panel.toggle-left {
    top: 0;
  }
  .toggle-panel.toggle-right {
    right: 0;
    bottom: -30%;
  }

  .container.active .toggle-panel.toggle-right {
    bottom: 0;
  }
}

@media screen and (max-width: 400px) {
  .form-box {
    padding: 20px;
  }
  .toggle-panel h1 {
    font-size: 28px;
  }
}