* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Segoe UI', sans-serif;
  background-color: #111;
  color: #fff;
  min-height: 100vh;
}

.clock-wrapper {
  width: 100%;
  display: flex;
  justify-content: flex-end;
  padding: 1rem 2rem 0 0;
}

.clock {
  font-weight: bold;
  font-size: 1rem;
  color: #ffca28;
}

main {
  max-width: 1000px;
  margin: 0 auto;
  padding: 2rem;
  text-align: center;
}

.app-title {
  font-size: 2.5rem;
  color: #ffca28;
  margin-bottom: 0.5rem;
}

.subtitle {
  font-size: 1.1rem;
  color: #ccc;
  margin-bottom: 2rem;
}

.auth-container {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.auth-panels {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
  justify-content: center;
}

.auth-panel {
  background-color: #1a1a1a;
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 0 10px rgba(255, 202, 40, 0.2);
  width: 300px;
}

.auth-panel h2 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  text-align: left;
}

.auth-panel input {
  width: 100%;
  padding: 0.7rem;
  margin-bottom: 1rem;
  border: none;
  border-radius: 6px;
  background-color: #2a2a2a;
  color: #fff;
}

.auth-panel input::placeholder {
  color: #aaa;
}

.auth-panel a {
  display: block;
  font-size: 0.9rem;
  text-align: left;
  margin-bottom: 1rem;
  color: #ffca28;
  text-decoration: none;
}

.dashboard-container {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.user-email {
  margin-bottom: 1rem;
  font-size: 1rem;
  color: #ccc;
}

.task-form {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 2rem;
  width: 100%;
}

.task-form input,
.task-form select {
  padding: 0.6rem;
  border-radius: 6px;
  border: none;
  background-color: #222;
  color: #fff;
  min-width: 160px;
  flex: 1;
}

.task-form input::placeholder {
  color: #888;
}

.task-sections {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  justify-content: center;
  margin-bottom: 2rem;
}

.day-section {
  background-color: #1e1e1e;
  border-radius: 10px;
  padding: 1rem;
  width: 250px;
}

.day-header {
  font-weight: bold;
  font-size: 1.1rem;
  color: #ffca28;
  margin-bottom: 0.5rem;
  cursor: pointer;
}

.day-tasks {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.empty-day {
  font-style: italic;
  color: #888;
  font-size: 0.9rem;
}

.task {
  background-color: #2b2b2b;
  padding: 0.6rem;
  border-radius: 6px;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  font-size: 0.95rem;
}

.task.completed {
  opacity: 0.6;
  text-decoration: line-through;
}

.task span {
  font-weight: 500;
}

.task button {
  border: none;
  padding: 0.3rem 0.6rem;
  font-size: 0.8rem;
  border-radius: 4px;
  cursor: pointer;
  margin-right: 0.3rem;
}

.task .done-btn {
  background-color: #4caf50;
  color: white;
}

.task .undo-btn {
  background-color: #757575;
  color: white;
}

.task .delete-btn {
  background-color: #f44336;
  color: white;
}

.task button:hover {
  opacity: 0.9;
}

.action-buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 2rem;
}

.btn {
  padding: 0.6rem 1.2rem;
  font-weight: bold;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background-color 0.3s;
}

.btn.yellow {
  background-color: #ffca28;
  color: black;
}

.btn.yellow:hover {
  background-color: #ffc107;
}

.btn.red {
  background-color: #f44336;
  color: white;
}

.btn.red:hover {
  background-color: #d32f2f;
}

.btn.logout {
  background-color: #555;
  color: white;
}

.btn.logout:hover {
  background-color: #777;
}

.weekly-summary {
  background-color: #1a1a1a;
  color: #eee;
  padding: 1rem;
  border-radius: 10px;
  width: 90%;
  max-width: 600px;
  margin-bottom: 2rem;
  text-align: left;
  line-height: 1.6;
}

.weekly-summary ul {
  list-style-type: disc;
  margin-left: 1.5rem;
}

footer {
  font-size: 0.9rem;
  color: #aaa;
  margin-top: 2rem;
  text-align: center;
}

@media (max-width: 768px) {
  .auth-panels,
  .task-form,
  .task-sections {
    flex-direction: column;
    align-items: center;
    width: 100%;
  }

  .auth-panel,
  .day-section {
    width: 95%;
    margin-bottom: 1.5rem;
  }

  input,
  textarea,
  button,
  select {
    font-size: 16px;
    width: 100%;
    padding: 10px;
    box-sizing: border-box;
  }

  .task-buttons button {
    width: 100%;
    margin: 6px 0;
    font-size: 14px;
    padding: 8px;
  }

  .day-section {
    padding: 10px;
  }

  .task-item {
    font-size: 15px;
    line-height: 1.4;
    padding: 8px;
  }

  #weekly-summary {
    padding: 10px;
    font-size: 14px;
  }

  footer {
    font-size: 12px;
    text-align: center;
    padding: 10px;
    word-break: break-word;
  }

  header h1 {
    font-size: 1.5rem;
  }

  header p {
    font-size: 0.95rem;
  }

  #clock {
    font-size: 0.85rem;
    margin-top: 0.5rem;
  }
}