/* style/doi-tac.css */
:root {
  --primary-color: #FF8C1A;
  --secondary-color: #FFA53A;
  --card-bg-color: #17191F;
  --background-color: #0D0E12;
  --text-main-color: #FFF3E6;
  --border-color: #A84F0C;
  --glow-color: #FFB04D;
  --deep-orange-color: #D96800;
}

.page-doi-tac {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: var(--text-main-color);
  background-color: var(--background-color);
}

.page-doi-tac__hero-section {
  position: relative;
  padding-top: 10px; /* Small top padding, body handles header offset */
  padding-bottom: 60px;
  text-align: center;
  overflow: hidden;
  background: linear-gradient(180deg, var(--background-color) 0%, #1a1e27 100%);
}

.page-doi-tac__hero-image-wrapper {
  max-width: 100%;
  overflow: hidden;
}

.page-doi-tac__hero-image {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 30px;
}

.page-doi-tac__hero-content {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 20px;
  color: var(--text-main-color);
}

.page-doi-tac__main-title {
  font-size: 2.8em;
  font-weight: bold;
  color: var(--primary-color);
  margin-bottom: 20px;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.page-doi-tac__hero-description {
  font-size: 1.1em;
  margin-bottom: 30px;
  color: #e0e0e0;
}

.page-doi-tac__hero-cta-buttons {
  display: flex;
  justify-content: center;
  gap: 15px;
  flex-wrap: wrap;
}

.page-doi-tac__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  font-size: 1.05em;
  transition: all 0.3s ease;
  box-sizing: border-box;
  max-width: 100%;
  white-space: normal;
  word-wrap: break-word;
}

.page-doi-tac__btn-primary {
  background: linear-gradient(180deg, var(--secondary-color) 0%, var(--deep-orange-color) 100%);
  color: #ffffff;
  border: none;
  box-shadow: 0 4px 15px rgba(255, 140, 26, 0.4);
}

.page-doi-tac__btn-primary:hover {
  background: linear-gradient(180deg, #FFB04D 0%, #e67300 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 140, 26, 0.6);
}

.page-doi-tac__btn-secondary {
  background: var(--card-bg-color);
  color: var(--primary-color);
  border: 2px solid var(--border-color);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.page-doi-tac__btn-secondary:hover {
  background: var(--primary-color);
  color: #ffffff;
  border-color: var(--primary-color);
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(255, 140, 26, 0.4);
}

.page-doi-tac__section {
  padding: 80px 0;
  background-color: var(--background-color);
}

.page-doi-tac__container {
  max-width: 1150px;
  margin: 0 auto;
  padding: 0 20px;
}

.page-doi-tac__section-title {
  font-size: 2.2em;
  font-weight: bold;
  color: var(--primary-color);
  text-align: center;
  margin-bottom: 25px;
  line-height: 1.2;
}

.page-doi-tac__section-intro {
  font-size: 1.1em;
  text-align: center;
  max-width: 800px;
  margin: 0 auto 50px auto;
  color: #e0e0e0;
}

.page-doi-tac__features-grid,
.page-doi-tac__models-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.page-doi-tac__feature-card,
.page-doi-tac__model-card {
  background-color: var(--card-bg-color);
  border-radius: 12px;
  padding: 30px;
  text-align: center;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.4);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: 1px solid var(--border-color);
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
}

.page-doi-tac__feature-card:hover,
.page-doi-tac__model-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 10px 30px rgba(255, 140, 26, 0.3);
}

.page-doi-tac__feature-image,
.page-doi-tac__model-image {
  width: 100%;
  height: 200px; /* Consistent height for images */
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 20px;
  display: block;
}

.page-doi-tac__feature-title,
.page-doi-tac__model-title {
  font-size: 1.5em;
  font-weight: bold;
  color: var(--primary-color);
  margin-bottom: 15px;
}

.page-doi-tac__feature-description,
.page-doi-tac__model-description {
  font-size: 1em;
  color: #c0c0c0;
  flex-grow: 1;
}

.page-doi-tac__partnership-process {
  background: linear-gradient(180deg, #1a1e27 0%, var(--background-color) 100%);
}

.page-doi-tac__process-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.page-doi-tac__process-step-card {
  background-color: var(--card-bg-color);
  border-radius: 12px;
  padding: 30px;
  text-align: center;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.4);
  border: 1px solid var(--border-color);
  position: relative;
  overflow: hidden;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.page-doi-tac__step-number {
  font-size: 3em;
  font-weight: bold;
  color: rgba(255, 140, 26, 0.2);
  position: absolute;
  top: 10px;
  left: 15px;
  line-height: 1;
  z-index: 0;
}

.page-doi-tac__step-title {
  font-size: 1.8em;
  font-weight: bold;
  color: var(--primary-color);
  margin-bottom: 15px;
  position: relative;
  z-index: 1;
}

.page-doi-tac__step-description {
  font-size: 1em;
  color: #c0c0c0;
  margin-bottom: 20px;
  position: relative;
  z-index: 1;
  flex-grow: 1;
}

.page-doi-tac__step-image {
  width: 100%;
  height: 180px;
  object-fit: cover;
  border-radius: 8px;
  display: block;
  position: relative;
  z-index: 1;
}

.page-doi-tac__process-cta {
  text-align: center;
  margin-top: 60px;
}

.page-doi-tac__faq-section {
  padding: 80px 0;
  background-color: var(--background-color);
}

.page-doi-tac__faq-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 50px;
}

.page-doi-tac__faq-item {
  background-color: var(--card-bg-color);
  border-radius: 12px;
  padding: 25px 30px;
  border: 1px solid var(--border-color);
  box-shadow: 0 3px 15px rgba(0, 0, 0, 0.3);
}

.page-doi-tac__faq-question {
  font-size: 1.3em;
  font-weight: bold;
  color: var(--primary-color);
  margin-bottom: 10px;
}

.page-doi-tac__faq-answer {
  font-size: 1em;
  color: #c0c0c0;
}

.page-doi-tac__call-to-action {
  background: linear-gradient(90deg, var(--deep-orange-color) 0%, var(--primary-color) 100%);
  padding: 60px 0;
  text-align: center;
  color: #ffffff;
}

.page-doi-tac__call-to-action .page-doi-tac__section-title {
  color: #ffffff;
}

.page-doi-tac__cta-description {
  font-size: 1.2em;
  max-width: 800px;
  margin: 0 auto 40px auto;
  color: #f0f0f0;
}

.page-doi-tac__cta-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

/* General image responsiveness */
.page-doi-tac img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Media Queries */
@media (max-width: 1024px) {
  .page-doi-tac__main-title {
    font-size: 2.5em;
  }
  .page-doi-tac__section-title {
    font-size: 2em;
  }
  .page-doi-tac__hero-description,
  .page-doi-tac__section-intro {
    font-size: 1em;
  }
  .page-doi-tac__feature-title,
  .page-doi-tac__model-title {
    font-size: 1.3em;
  }
  .page-doi-tac__faq-question {
    font-size: 1.2em;
  }
}

@media (max-width: 768px) {
  /* 1. Top section title + CTA */
  .page-doi-tac__hero-section {
    padding-top: 10px !important; /* Ensure small top padding */
    padding-bottom: 40px;
  }
  .page-doi-tac__hero-content {
    padding: 0 15px;
  }
  .page-doi-tac__main-title {
    font-size: 2em !important;
    margin-bottom: 15px;
  }
  .page-doi-tac__hero-description {
    font-size: 0.95em;
    margin-bottom: 25px;
  }
  .page-doi-tac__hero-cta-buttons {
    flex-direction: column;
    gap: 10px;
    padding: 0 15px;
  }
  .page-doi-tac__btn {
    max-width: 100% !important;
    width: 100% !important;
    padding: 12px 20px;
    font-size: 1em !important;
    white-space: normal !important;
    word-wrap: break-word !important;
  }

  /* 2. Single-column long text container */
  .page-doi-tac__container {
    padding: 0 15px !important;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }
  .page-doi-tac__section {
    padding: 50px 0;
  }
  .page-doi-tac__section-title {
    font-size: 1.8em !important;
    margin-bottom: 20px;
  }
  .page-doi-tac__section-intro {
    font-size: 0.95em;
    margin-bottom: 40px;
  }
  .page-doi-tac__feature-card,
  .page-doi-tac__model-card,
  .page-doi-tac__process-step-card,
  .page-doi-tac__faq-item {
    padding: 20px;
  }
  .page-doi-tac__feature-title,
  .page-doi-tac__model-title {
    font-size: 1.2em !important;
  }
  .page-doi-tac__feature-description,
  .page-doi-tac__model-description,
  .page-doi-tac__step-description,
  .page-doi-tac__faq-answer {
    font-size: 0.9em;
  }

  /* 3. General images and figure */
  .page-doi-tac img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }

  /* 4. Buttons and button containers (already covered in top section, but re-emphasize) */
  .page-doi-tac__cta-buttons {
    flex-direction: column !important;
    gap: 10px !important;
    padding: 0 15px !important;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
    overflow: hidden !important;
  }
  .page-doi-tac__process-cta .page-doi-tac__btn {
    width: calc(100% - 30px) !important; /* Account for container padding */
    margin: 0 auto;
  }

  /* 5. Registration tutorial and FAQ sections */
  .page-doi-tac__process-steps {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .page-doi-tac__step-title {
    font-size: 1.5em !important;
  }
  .page-doi-tac__faq-question {
    font-size: 1.1em !important;
  }
  .page-doi-tac__call-to-action {
    padding: 40px 0;
  }
  .page-doi-tac__cta-description {
    font-size: 1em;
    margin-bottom: 30px;
  }
}