body {
  margin: 0;
  font-family: 'Poppins', sans-serif;
  background: linear-gradient(135deg, #fdfbfb, #ebedee);
  color: #333;
}

/* HERO */
.hero {
  text-align: center;
  padding: 100px 20px;
  background: linear-gradient(135deg, #fbc2eb, #a6c1ee);
}

.cta {
  display: inline-block;
  margin-top: 20px;
  padding: 12px 25px;
  background: white;
  border-radius: 30px;
  text-decoration: none;
  color: #6a5acd;
}

/* FEATURES */
.features {
  display: flex;
  justify-content: space-around;
  padding: 50px;
}

.feature-card {
  background: white;
  padding: 20px;
  border-radius: 20px;
  width: 25%;
}

/* HEADER */
header {
  text-align: center;
  padding: 30px;
  position: relative;
}

.header-actions {
  position: absolute;
  right: 20px;
  top: 20px;
}

.icon-btn {
  font-size: 22px;
  cursor: pointer;
}

/* TABS */
.tabs {
  display: flex;
  justify-content: center;
  gap: 15px;
}

.tabs button {
  background: #f3e8ff;
  border: none;
  padding: 10px 18px;
  border-radius: 20px;
}

.tabs button.active-tab {
  background: #d8b4fe;
  color: white;
}

/* OVERVIEW */
.overview {
  display: flex;
  justify-content: center;
  gap: 20px;
}

.card {
  background: #f3e8ff;
  padding: 15px;
  border-radius: 15px;
}

/* TAB */
.tab { display: none; }
.tab.active { display: block; }

/* BOARD */
.board {
  display: flex;
  gap: 20px;
  padding: 20px;
}

.column {
  flex: 1;
  background: #fff0f6;
  border-radius: 20px;
  padding: 15px;
}

.task {
  background: white;
  padding: 10px;
  margin-top: 10px;
  border-radius: 12px;
  cursor: grab;
}

/* CALENDAR */
#calendarGrid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 10px;
  padding: 20px;
}

.day {
  background: #e0f2fe;
  border-radius: 15px;
  padding: 10px;
  min-height: 80px;
}

.event {
  background: #c084fc;
  color: white;
  padding: 4px;
  border-radius: 8px;
}

/* TEAM */
.invite-box input {
  padding: 10px;
  border-radius: 20px;
  border: none;
}

#collaborators div {
  background: #e0cfff;
  padding: 6px;
  border-radius: 20px;
  margin: 5px;
}

/* HOW SECTION */
.how {
  text-align: center;
  padding: 60px 20px;
}

.how h2 {
  font-size: 2rem;
  margin-bottom: 10px;
}

.subtitle {
  color: #777;
  margin-bottom: 30px;
}

/* STEPS GRID */
.steps {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

/* STEP CARDS */
.step-card {
  background: white;
  padding: 20px;
  border-radius: 20px;
  width: 220px;
  box-shadow: 0 6px 15px rgba(0,0,0,0.05);
  text-align: center;
}

.step-card h3 {
  margin-bottom: 10px;
  color: #6a5acd;
}

.learn {
  text-align: center;
  padding: 60px 20px;
}

.learn-grid {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 20px;
  margin-top: 20px;
}

.learn-card {
  background: #fff;
  padding: 20px;
  border-radius: 20px;
  text-decoration: none;
  color: #6a5acd;
  width: 200px;
  box-shadow: 0 5px 12px rgba(0,0,0,0.05);
  transition: 0.2s;
}

.learn-card:hover {
  transform: translateY(-5px);
  background: #f3e8ff;
}

.learn-preview {
  text-align: center;
  padding: 60px 20px;
}

.learn-grid {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 20px;
}

.learn-card {
  background: white;
  padding: 20px;
  border-radius: 20px;
  width: 200px;
  text-decoration: none;
  color: #6a5acd;
  box-shadow: 0 6px 15px rgba(0,0,0,0.05);
  transition: 0.2s;
}

.learn-card:hover {
  transform: translateY(-6px);
  background: #f3e8ff;
}

.content {
  text-align: center;
  padding: 40px;
}

.card {
  background: white;
  margin: 20px auto;
  padding: 20px;
  border-radius: 20px;
  width: 60%;
  box-shadow: 0 6px 15px rgba(0,0,0,0.05);
}

#calendarGrid {
  padding: 20px;
}

/* calendar header */
.calendar-header {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 20px;
  margin-bottom: 10px;
}

.calendar-header button {
  background: #f3e8ff;
  border: none;
  padding: 8px 12px;
  border-radius: 10px;
  cursor: pointer;
}

/* THE REAL GRID */
.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 10px;
  width: 100%;
}

/* DAY NAMES */
.day-name {
  text-align: center;
  font-weight: 600;
  color: #777;
}

/* DAY BLOCKS */
.day {
  background: #e0f2fe;
  border-radius: 15px;
  padding: 12px;
  min-height: 90px;
}

.project-bar {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin: 15px;
}

.project-bar select {
  padding: 8px;
  border-radius: 10px;
  border: none;
  background: #f3e8ff;
}

.project-bar button {
  background: #d8b4fe;
  border: none;
  padding: 8px 12px;
  border-radius: 10px;
  cursor: pointer;
}

.calendar-wrapper {
  width: 100%;
  max-width: 900px;
  margin: auto;
}

#calendarGrid {
  width: 100%;
  display: flex;
  justify-content: center;
}

.calendar-grid {
  width: 100%;
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 10px;
}

.day {
  min-height: 90px;
  padding: 10px;
  border-radius: 15px;
  background: #e0f2fe;
}