/* ===== GOOGLE FONT ===== */
@import url("https://fonts.googleapis.com/css2?family=Outfit:wght@400;600;800&display=swap");

/* ===== MAIN CONTAINER ===== */

.habit-tracker {
  margin: 0 auto;
  padding: 1.5rem;
  font-family: "Outfit", sans-serif;

  /* Background color */
  background: linear-gradient(135deg, #667eea, #764ba2);
  color: white;

  border-radius: 20px;
  min-height: 100vh;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);

  width: 100%;
  max-width: 900px; /* keeps it nice on large screens */
}

/* ===== HEADERS ===== */
h1,
h2 {
  text-align: center;
  color: #fff;
}

/* ===== SUBTITLE ===== */
.subtitle {
  text-align: center;
  opacity: 0.9;
  font-size: 1.1rem;
  margin-bottom: 2rem;
}

/* ===== ADD HABIT SECTION ===== */
.add-habit {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

/* Input */
#new-habit {
  flex: 1;
  padding: 0.9rem;
  font-size: 1rem;
  border: none;
  border-radius: 14px;
}

/* Add button */
#add-btn {
  min-width: 56px;
  background: #fff;
  color: #667eea;
  border: none;
  border-radius: 14px;
  font-size: 1.8rem;
  font-weight: bold;
  cursor: pointer;
}

/* ===== HABIT ITEM ===== */
.habit-item {
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  padding: 1rem;
  margin: 1rem 0;
  border-radius: 16px;

  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
}

/* Habit name */
.habit-name {
  font-size: 1.2rem;
  font-weight: 600;
}

/* Streak section */
.streak {
  display: flex;
  align-items: center;
  gap: 0.5rem;

  font-size: 1.5rem;
  font-weight: 800;
}

/* ===== CALENDAR ===== */
.calendar-container {
  margin-top: 3rem;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 20px;
  padding: 1rem;
}

/* Calendar header */
.calendar-header {
  display: flex;
  justify-content: space-between;
  align-items: center;

  margin-bottom: 1rem;
  font-size: 1.3rem;
  font-weight: bold;
}

.calendar-header button {
  background: none;
  border: none;
  color: white;
  font-size: 1.6rem;
  cursor: pointer;
}

/* Calendar grid */
.calendar {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  justify-items: center;
  gap: 6px;
  text-align: center;
}

/* Day name */
.day-name {
  width: 36px;
  font-size: 0.75rem;
  opacity: 0.8;
}

/* Day cell */
.day {
  width: 36px;
  height: 36px;

  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;

  background: rgba(255, 255, 255, 0.15);
}

/* Today */
.day.today {
  background: #fff !important;
  color: #1d1f23;
  font-weight: bold;
}

/* Completed day */
.day.done {
  background: #e11d48 !important;
  color: #fff;
}

/* Empty day */
.day.empty {
  background: transparent !important;
}

/* ===== MOBILE FIXES ===== */
@media (max-width: 600px) {
  .habit-tracker {
    padding: 5px;
    border-radius: 12px;
  }

  .add-habit {
    flex-direction: column;
  }

  #add-btn {
    width: 100%;
  }

  .habit-item {
    /* flex-direction: column; */
    align-items: flex-start;
  }

  .streak {
    align-self: flex-end;
  }

  .calendar {
    gap: 4px;
  }
  .day {
    width: 32px;
    height: 32px;
    font-size: 0.8rem;
  }
}