*,
*::before,
*::after {
  box-sizing: border-box;
}

:root {
  --dc-purple: #69306f;
  --dc-pink: #b47b7b;
  --dc-black: #161613;
  --dc-taupe: #bfb6a7;
  --dc-beige: #e9ddd1;
  --dc-green: #8f937b;
  --dc-white: #ffffff;
  --border-color: #d4ccc1;
}

body {
  background-color: var(--dc-beige);
  color: var(--dc-black);
  font-family: 'Nunito', sans-serif;
  font-size: 18px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: color 0.2s, background-color 0.2s;
}

.container {
  max-width: 960px;
  margin: 50px auto;
  padding: 20px;
}

.content-wrapper {
  background-color: var(--dc-white);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  box-shadow: 0 15px 50px -10px rgba(0, 0, 0, 0.1);
  padding: clamp(30px, 6vw, 60px);
}

h1,
h2,
h3,
h4 {
  font-family: 'Montserrat', sans-serif;
  font-weight: 800;
  color: var(--dc-purple);
  line-height: 1.2;
}

h1 {
  font-size: clamp(2.5rem, 1.5rem + 5vw, 3.5rem);
  letter-spacing: -1.5px;
  text-align: center;
  margin-bottom: 0.75rem;
}

.subtitle {
  font-family: 'Nunito', sans-serif;
  font-weight: 600;
  font-size: clamp(1.2rem, 0.8rem + 2vw, 1.6rem);
  color: var(--dc-black);
  text-align: center;
  margin-top: 0;
  margin-bottom: clamp(40px, 8vw, 60px);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.section {
  margin-bottom: clamp(40px, 8vw, 60px);
}

.section > h2 {
  font-size: clamp(1.8rem, 1.2rem + 3vw, 2.2rem);
  letter-spacing: -0.5px;
  margin-bottom: 25px;
  padding-bottom: 15px;
  border-bottom: 1px solid var(--border-color);
}

.intro-text {
  font-size: 1.15rem;
  line-height: 1.8;
  color: #333;
}

/* Tabs System */
.tabs {
  display: flex;
  flex-wrap: wrap;
  margin-bottom: 40px;
  border-bottom: 1px solid var(--border-color);
}
.tab-label {
  padding: 12px 25px;
  cursor: pointer;
  font-family: 'Montserrat', sans-serif;
  font-weight: 800;
  font-size: 1rem;
  color: var(--dc-taupe);
  border-bottom: 3px solid transparent;
  margin-bottom: -1px; /* Overlaps border */
  transition: all 0.3s ease;
}
.tab-label:hover {
  color: var(--dc-purple);
  background-color: #fbfaf8;
}
.tab-radio {
  display: none;
}
.tab-content {
  display: none;
  order: 1;
  width: 100%;
  padding-top: 20px;
}
.tab-radio:checked + .tab-label {
  color: var(--dc-purple);
  border-bottom-color: var(--dc-purple);
}
.tab-radio:checked + .tab-label + .tab-content {
  display: block;
}

.proposal-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 25px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  overflow: hidden;
}

.proposal-table th,
.proposal-table td {
  text-align: left;
  padding: 15px 20px;
  border-bottom: 1px solid var(--border-color);
}

.proposal-table th {
  font-family: 'Nunito', sans-serif;
  font-weight: 700;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--dc-purple);
  background-color: #faf8f5;
}

.proposal-table tr:last-child td {
  border-bottom: none;
}

.phase-col {
  font-family: 'Montserrat', sans-serif;
  font-weight: 800;
  color: var(--dc-black);
  background-color: #faf8f5;
  width: 25%;
}

.investment-box {
  background-color: #faf8f5;
  border: 1px solid var(--border-color);
  border-left: 5px solid var(--dc-purple);
  border-radius: 8px;
  padding: 30px;
  margin-top: 40px;
}

.investment-box h3 {
  color: var(--dc-black);
  font-size: 1.5rem;
  margin: 0 0 10px 0;
}

.investment-box .price {
  font-family: 'Montserrat', sans-serif;
  font-weight: 800;
  font-size: clamp(2.2rem, 1.5rem + 3.5vw, 3rem);
  color: var(--dc-purple);
}

.investment-box .conditions {
  margin-top: 15px;
  color: var(--dc-black);
  font-size: 1rem;
}

.highlight {
  background-color: var(--dc-pink);
  color: var(--dc-white);
  padding: 2px 8px;
  border-radius: 4px;
  font-weight: 600;
  font-family: 'Montserrat', sans-serif;
}

.benefits-list {
  list-style-type: none;
  padding-left: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 25px;
}

.benefits-list li {
  background-color: #faf8f5;
  padding: 20px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
}

.benefits-list h4 {
  margin: 0 0 8px 0;
  color: var(--dc-purple);
  font-size: 1.15rem;
}

.benefits-list p {
  margin: 0;
  color: var(--dc-black);
  font-size: 1rem;
}

.benefits-list.single-column {
  grid-template-columns: 1fr;
}

.footer {
  text-align: center;
  margin-top: 60px;
  padding-top: 40px;
  border-top: 1px solid var(--border-color);
  color: var(--dc-taupe);
}

.footer h3 {
  color: var(--dc-purple);
  margin-bottom: 5px;
}

.footer p {
  margin: 0;
  font-size: 1rem;
}

/* Responsive adjustments */
@media (max-width: 820px) {
  .tabs {
    flex-direction: column;
  }
  .tab-label {
    border-bottom: 1px solid var(--border-color);
    text-align: center; /* Center text for stacked tabs */
  }
  .tab-radio:checked + .tab-label {
    border-bottom-color: var(--dc-purple);
  }
}

@media (max-width: 600px) {
  body {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
  }
  .container {
    margin: 0;
    padding: 0;
  }
  .content-wrapper {
    border-radius: 0;
    border: none;
    box-shadow: none;
  }

  .proposal-table-wrapper {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin-bottom: 20px;
  }
  .proposal-table {
    border: none;
    border-radius: 0;
  }
  .proposal-table th,
  .proposal-table td {
    white-space: nowrap;
    padding: 12px 15px;
  }
  .investment-box {
    padding: 20px;
  }
}