/* ===================================
   CONFERENCE PAGE STYLES
   =================================== */

/* Conference Section Header */
.conference__header {
  text-align: center;
  margin-bottom: var(--space-16);
}

.conference__title {
  font-size: var(--text-4xl);
  font-weight: 800;
  color: var(--color-black);
  margin-bottom: var(--space-4);
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.conference__description {
  font-size: var(--text-xl);
  color: var(--color-black);
  line-height: 1.6;
  max-width: 800px;
  margin: 0 auto;
}

/* Conference Hero Section */
.conference-hero {
  padding: 140px 0 var(--space-20) 0;
  background: linear-gradient(135deg, rgba(169, 204, 233, 0.25) 0%, rgba(252, 175, 42, 0.25) 100%);
  position: relative;
  overflow: hidden;
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

[data-theme="dark"] .conference-hero {
  background: linear-gradient(135deg, rgba(169, 204, 233, 0.12) 0%, rgba(252, 175, 42, 0.12) 100%);
}

.conference-hero__container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  width: 100%;
}

.conference-hero__content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.conference-hero__back-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-black);
  text-decoration: none;
  font-size: var(--text-sm);
  font-weight: 500;
  margin-bottom: var(--space-8);
  transition: color var(--transition-fast);
}

.conference-hero__back-link:hover {
  color: var(--color-blue);
}

.conference-hero__back-link svg {
  width: 16px;
  height: 16px;
}

.conference-hero__title {
  font-size: var(--text-6xl);
  font-weight: 800;
  color: var(--color-black);
  margin-bottom: var(--space-4);
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.conference-hero__subtitle {
  font-size: var(--text-xl);
  color: var(--color-gray-600);
  margin-bottom: var(--space-8);
  line-height: 1.6;
}

.conference-hero__details {
  display: flex;
  justify-content: center;
  gap: var(--space-8);
  margin-bottom: var(--space-10);
  flex-wrap: wrap;
}

.conference-hero__detail {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-black);
  font-size: var(--text-base);
  font-weight: 500;
}

.conference-hero__detail svg {
  width: 20px;
  height: 20px;
  color: var(--color-blue);
  flex-shrink: 0;
}

.conference-hero__actions {
  display: flex;
  justify-content: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

/* Conference About Section */
.conference-about {
  padding: var(--space-20) 0;
  background: var(--color-white);
}

[data-theme="dark"] .conference-about {
  background: var(--color-dark-bg);
}

.conference-about__container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.conference-about__content {
  max-width: 800px;
  margin: var(--space-10) auto 0;
}

.conference-about__text {
  font-size: var(--text-lg);
  line-height: 1.8;
  color: var(--color-black);
  text-align: center;
}

.conference-about__text p {
  margin-bottom: var(--space-6);
}

.conference-about__text p:last-child {
  margin-bottom: 0;
  font-size: var(--text-base);
  opacity: 0.9;
}

.conference-about__objectives {
  background: rgba(52, 124, 191, 0.05);
  padding: var(--space-6);
  border-radius: var(--radius-lg);
}

[data-theme="dark"] .conference-about__objectives {
  background: rgba(52, 124, 191, 0.1);
}

.conference-about__objectives-title {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-black);
  margin-bottom: var(--space-4);
}

.conference-about__objectives-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.conference-about__objectives-list li {
  padding: var(--space-2) 0;
  padding-left: var(--space-6);
  position: relative;
  color: var(--color-black);
  line-height: 1.6;
}

.conference-about__objectives-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-blue);
  font-weight: 700;
}

/* Conference Program Section */
.conference-program {
  padding: var(--space-20) 0;
  background: linear-gradient(135deg, rgba(169, 204, 233, 0.1) 0%, rgba(252, 175, 42, 0.1) 100%);
}

[data-theme="dark"] .conference-program {
  background: linear-gradient(135deg, rgba(169, 204, 233, 0.05) 0%, rgba(252, 175, 42, 0.05) 100%);
}

.conference-program__container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.conference-program__days {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
  margin-top: var(--space-10);
}

.conference-program__day {
  background: var(--color-white);
  padding: var(--space-8);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

[data-theme="dark"] .conference-program__day {
  background: var(--color-dark-surface);
}

.conference-program__day-title {
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-black);
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-4);
  border-bottom: 2px solid var(--color-blue);
}

.conference-program__schedule {
  list-style: none;
  padding: 0;
  margin: 0;
}

.conference-program__item {
  display: flex;
  gap: var(--space-4);
  padding: var(--space-4) 0;
  border-bottom: 1px solid rgba(28, 47, 64, 0.1);
}

.conference-program__item:last-child {
  border-bottom: none;
}

.conference-program__time {
  font-weight: 600;
  color: var(--color-blue);
  min-width: 120px;
  font-size: var(--text-sm);
}

.conference-program__activity {
  color: var(--color-black);
  flex: 1;
  line-height: 1.6;
}

/* Conference Audience Section */
.conference-audience {
  padding: var(--space-20) 0;
  background: var(--color-white);
}

[data-theme="dark"] .conference-audience {
  background: var(--color-dark-bg);
}

.conference-audience__container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.conference-audience__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
  margin-top: var(--space-10);
}

.conference-audience__card {
  background: rgba(52, 124, 191, 0.05);
  padding: var(--space-6);
  border-radius: var(--radius-lg);
}

[data-theme="dark"] .conference-audience__card {
  background: rgba(52, 124, 191, 0.1);
}

.conference-audience__icon {
  width: 48px;
  height: 48px;
  background: var(--color-blue);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-4);
  color: var(--color-white);
}

.conference-audience__icon svg {
  width: 24px;
  height: 24px;
}

.conference-audience__title {
  font-size: var(--text-xl);
  font-weight: 800;
  color: var(--color-black);
  margin-bottom: var(--space-3);
}

.conference-audience__description {
  color: var(--color-black);
  line-height: 1.6;
  font-size: var(--text-base);
}


/* Responsive adjustments for conference page */
@media (max-width: 1024px) {
  .conference-about__content,
  .conference-program__days,
  .conference-audience__grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .conference__title {
    font-size: var(--text-3xl);
  }
  
  .conference__description {
    font-size: var(--text-lg);
  }
}

@media (max-width: 768px) {
  .conference-hero {
    padding: 120px 0 var(--space-16) 0;
    min-height: 50vh;
  }

  .conference-hero__title {
    font-size: var(--text-4xl);
  }

  .conference-hero__subtitle {
    font-size: var(--text-lg);
  }

  .conference-hero__details {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-4);
  }

  .conference-hero__actions {
    flex-direction: column;
    width: 100%;
  }

  .conference-hero__actions .btn,
  .conference-hero__btn {
    width: 100%;
  }

  .conference-about,
  .conference-program,
  .conference-audience {
    padding: var(--space-16) 0;
  }
}

@media (max-width: 480px) {
  .conference-hero__title {
    font-size: var(--text-3xl);
  }

  .conference-program__item {
    flex-direction: column;
    gap: var(--space-2);
  }

  .conference-program__time {
    min-width: auto;
  }
}

/* ===================================
   CONFERENCE PREVIEW SECTION (Main Page)
   =================================== */

.conference-preview {
  padding: var(--space-20) 0;
  background: linear-gradient(135deg, rgba(169, 204, 233, 0.15) 0%, rgba(252, 175, 42, 0.15) 100%);
}

[data-theme="dark"] .conference-preview {
  background: linear-gradient(135deg, rgba(169, 204, 233, 0.08) 0%, rgba(252, 175, 42, 0.08) 100%);
}

.conference-preview__container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.conference-preview__header {
  text-align: center;
  margin-bottom: var(--space-8);
}

.conference-preview__title {
  font-size: var(--text-4xl);
  font-weight: 800;
  color: var(--color-black);
  margin-bottom: var(--space-4);
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.conference-preview__description {
  font-size: var(--text-xl);
  color: var(--color-black);
  line-height: 1.6;
  max-width: 800px;
  margin: 0 auto;
}

.conference-preview__content {
  max-width: 800px;
  margin: var(--space-10) auto 0;
  text-align: center;
}

.conference-preview__details {
  display: flex;
  justify-content: center;
  gap: var(--space-8);
  margin-bottom: var(--space-6);
  flex-wrap: wrap;
}

.conference-preview__detail {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-black);
  font-size: var(--text-base);
  font-weight: 500;
}

.conference-preview__detail svg {
  width: 20px;
  height: 20px;
  color: var(--color-blue);
  flex-shrink: 0;
}

.conference-preview__text {
  font-size: var(--text-lg);
  line-height: 1.8;
  color: var(--color-black);
  margin-bottom: var(--space-8);
}

.conference-preview__actions {
  display: flex;
  justify-content: center;
  gap: var(--space-4);
}

/* Button scoped to conference-preview block */
.conference-preview__btn {
  /* Inherits all .btn styles from main.css */
}

/* Responsive adjustments for conference preview */
@media (max-width: 768px) {
  .conference-preview {
    padding: var(--space-16) 0;
  }

  .conference-preview__details {
    flex-direction: column;
    align-items: center;
    gap: var(--space-4);
  }

  .conference-preview__text {
    font-size: var(--text-base);
  }
}