/* ==========================================================================
   Edge AI Hackathon 2026 Stylesheet
   ========================================================================== */

/* 1. Page Header Offset & Section Utilities */
.section {
  padding: 55px 0;
}

.section-gray {
  background-color: rgba(var(--primary-rgb), 0.045);
}

body.dark-mode .section-gray {
  background-color: rgba(var(--glow-rgb), 0.05);
}

.max-800 {
  max-width: 800px;
  margin: 0 auto;
}

.text-center {
  text-align: center;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.align-start {
  align-items: start;
}

.btn-disabled {
  background-color: #9CA3AF !important;
  color: #FFFFFF !important;
  cursor: not-allowed;
  opacity: 0.8;
  pointer-events: none;
  box-shadow: none !important;
}

.btn-full {
  width: 100%;
  text-align: center;
  justify-content: center;
}

/* 2. Hackathon Hero Section */
.hackathon-hero {
  padding: 55px 0;
  background: radial-gradient(ellipse at 80% 20%, rgba(var(--secondary-rgb), 0.08) 0%, transparent 55%),
              radial-gradient(ellipse at 10% 90%, rgba(var(--primary-rgb), 0.06) 0%, transparent 55%);
  border-bottom: 1px solid var(--card-border);
  position: relative;
  overflow: hidden;
}

.hackathon-hero .hero-grid {
  position: relative;
  z-index: 2;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 50px;
  align-items: center;
}

.hero-content h1 {
  font-family: 'Poppins', sans-serif;
  font-size: 3rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
  margin: 15px 0;
}

.hero-content .highlight-text {
  display: block;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: rgba(0, 98, 155, 0.08);
  color: var(--primary);
  padding: 6px 16px;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

body.dark-mode .hero-subtitle-badge {
  background-color: rgba(0, 180, 216, 0.15);
  color: var(--secondary);
}

.status-badge {
  display: inline-block;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  color: #FFFFFF;
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 1px;
  padding: 6px 18px;
  border-radius: var(--border-radius-sm);
  margin-bottom: 20px;
  box-shadow: 0 4px 10px rgba(0, 180, 216, 0.25);
}

.hero-description {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 30px;
}

.organizers-list h4 {
  font-size: 1rem;
  color: var(--text-primary);
  margin-bottom: 12px;
  font-weight: 600;
}

.organizers-list ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.organizers-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-secondary);
  margin-bottom: 8px;
  font-size: 0.95rem;
}

.organizers-list li svg {
  color: var(--secondary);
  width: 18px;
  height: 18px;
}

/* 3. Hero Poster Container */
.hero-poster .poster-container {
  position: relative;
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-lg), 0 15px 35px rgba(0, 98, 155, 0.12);
  border: 1px solid var(--card-border);
  animation: float 6s ease-in-out infinite;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.hero-poster .poster-container::before {
  content: '';
  position: absolute;
  top: -15px;
  left: -15px;
  right: -15px;
  bottom: -15px;
  border-radius: calc(var(--border-radius-md) + 8px);
  border: 2px dashed var(--primary);
  opacity: 0.35;
  filter: drop-shadow(0 0 8px rgba(0, 98, 155, 0.3));
  animation: spin 45s linear infinite;
  pointer-events: none;
}

body.dark-mode .hero-poster .poster-container::before {
  border-color: var(--secondary);
  filter: drop-shadow(0 0 10px rgba(0, 180, 216, 0.45));
}

.poster-img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--border-radius-md);
}

.poster-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(to top, rgba(15, 23, 42, 0.95) 0%, rgba(15, 23, 42, 0) 100%);
  padding: 30px;
  display: flex;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-normal);
  border-bottom-left-radius: var(--border-radius-md);
  border-bottom-right-radius: var(--border-radius-md);
}

.poster-container:hover .poster-overlay {
  opacity: 1;
}

/* 4. Event Information Card & About Card */
.info-card, .about-card {
  background-color: var(--card-bg);
  border-radius: var(--border-radius-md);
  padding: 35px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--card-border);
  height: 100%;
}

.card-header {
  display: flex;
  align-items: center;
  gap: 15px;
  margin-bottom: 25px;
  border-bottom: 2px solid var(--bg-tertiary);
  padding-bottom: 15px;
}

.card-icon {
  color: var(--primary);
  width: 24px;
  height: 24px;
}

body.dark-mode .card-icon {
  color: var(--secondary);
}

.card-header h3 {
  font-family: 'Poppins', sans-serif;
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--text-primary);
}

.info-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 25px;
}

.info-table td {
  padding: 12px 0;
  border-bottom: 1px solid var(--bg-tertiary);
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.info-table td:last-child {
  text-align: right;
  color: var(--text-primary);
  font-weight: 500;
}

.badge {
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
}

.badge-warning {
  background-color: rgba(245, 158, 11, 0.12);
  color: #D97706;
}

body.dark-mode .badge-warning {
  background-color: rgba(245, 158, 11, 0.2);
  color: #FBBF24;
}

.about-body p {
  font-size: 0.98rem;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.focus-title {
  font-size: 1rem;
  color: var(--text-primary);
  margin: 25px 0 15px 0;
  font-weight: 600;
}

.theme-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.theme-tag {
  background-color: var(--bg-tertiary);
  color: var(--text-secondary);
  padding: 6px 14px;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 500;
  border: 1px solid var(--card-border);
}

/* 5. Problem Statements Card */
.problem-statements-card {
  background-color: var(--card-bg);
  border-radius: var(--border-radius-md);
  padding: 50px 40px;
  text-align: center;
  box-shadow: var(--shadow-lg);
  border: 2px dashed rgba(0, 98, 155, 0.2);
  position: relative;
  overflow: hidden;
}

body.dark-mode .problem-statements-card {
  border-color: rgba(0, 180, 216, 0.3);
}

.problem-header {
  margin-bottom: 30px;
}

.problem-icon-container {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 70px;
  height: 70px;
  border-radius: 50%;
  background-color: rgba(0, 98, 155, 0.05);
  color: var(--primary);
  margin-bottom: 20px;
}

body.dark-mode .problem-icon-container {
  background-color: rgba(0, 180, 216, 0.1);
  color: var(--secondary);
}

.problem-icon {
  width: 32px;
  height: 32px;
}

.problem-statements-card h2 {
  font-family: 'Poppins', sans-serif;
  font-size: 1.8rem;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.problem-statements-card .subtitle {
  color: var(--text-secondary);
  font-size: 1rem;
}

.problem-body p {
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto 30px auto;
  font-size: 0.95rem;
  line-height: 1.6;
}

/* 6. Notices Timeline (Vertical timeline styled like PMEC notices) */
.timeline-section, .eligibility-card {
  background-color: var(--card-bg);
  border-radius: var(--border-radius-md);
  padding: 35px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--card-border);
  width: 100%;
}

.section-title-wrapper {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 30px;
  border-bottom: 2px solid var(--bg-tertiary);
  padding-bottom: 12px;
}

.section-title-icon {
  color: var(--primary);
  width: 24px;
  height: 24px;
}

body.dark-mode .section-title-icon {
  color: var(--secondary);
}

.section-title-wrapper h3 {
  font-family: 'Poppins', sans-serif;
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--text-primary);
}

.notice-timeline {
  position: relative;
  padding-left: 24px;
  margin-left: 10px;
}

.notice-timeline::before {
  content: '';
  position: absolute;
  top: 8px;
  bottom: 8px;
  left: 0;
  width: 2px;
  background-color: var(--bg-tertiary);
}

.notice-item {
  position: relative;
  margin-bottom: 24px;
}

.notice-item:last-child {
  margin-bottom: 0;
}

.notice-badge-container {
  position: absolute;
  top: 6px;
  left: -24px;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
}

.notice-dot {
  width: 10px;
  height: 10px;
  background-color: var(--bg-primary);
  border: 2px solid var(--primary);
  border-radius: 50%;
  transition: transform var(--transition-fast);
}

body.dark-mode .notice-dot {
  border-color: var(--secondary);
}

.notice-item:hover .notice-dot {
  transform: scale(1.3);
  background-color: var(--secondary);
}

.notice-card {
  background-color: var(--bg-secondary);
  border-radius: var(--border-radius-sm);
  padding: 12px 18px;
  border: 1px solid var(--card-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.notice-card h4 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}

.notice-status {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
}

.text-blue {
  color: var(--primary);
}

body.dark-mode .text-blue {
  color: var(--secondary);
}

/* 7. Eligibility Card styling */
.eligibility-body-card {
  padding: 10px 0;
}

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

.eligibility-list li {
  display: flex;
  align-items: start;
  gap: 20px;
  margin-bottom: 30px;
}

.eligibility-list li:last-child {
  margin-bottom: 0;
}

.eligibility-list li svg {
  color: var(--primary);
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  margin-top: 2px;
}

body.dark-mode .eligibility-list li svg {
  color: var(--secondary);
}

.eligibility-list li strong {
  display: block;
  font-size: 1rem;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.eligibility-list li p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* 8. PMEC ERP Query Notice card */
.queries-card {
  background-color: var(--card-bg);
  border-radius: var(--border-radius-md);
  padding: 35px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--card-border);
  border-top: 4px solid var(--primary);
}

body.dark-mode .queries-card {
  border-top-color: var(--secondary);
}

.erp-header {
  border-bottom: 2px solid var(--bg-tertiary);
  padding-bottom: 15px;
  margin-bottom: 25px;
}

.erp-header h4 {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
  letter-spacing: 1px;
  margin-bottom: 6px;
}

.erp-header h3 {
  font-family: 'Poppins', sans-serif;
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--text-primary);
}

.erp-body {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.erp-field {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.erp-label {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
  letter-spacing: 0.5px;
}

.erp-value {
  font-size: 0.95rem;
  color: var(--text-primary);
  font-weight: 500;
  line-height: 1.5;
}

.erp-value a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
}

body.dark-mode .erp-value a {
  color: var(--secondary);
}

.erp-value a:hover {
  text-decoration: underline;
}

/* 9. FAQ Section Accordion styling */
.faq-container {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.faq-item {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--border-radius-sm);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-fast);
}

.faq-item:hover {
  box-shadow: var(--shadow-md);
}

.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: none;
  border: none;
  padding: 18px 24px;
  text-align: left;
  cursor: pointer;
  outline: none;
}

.faq-question span {
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--text-primary);
}

.faq-arrow {
  color: var(--text-muted);
  width: 18px;
  height: 18px;
  transition: transform var(--transition-normal);
}

.faq-item.active .faq-arrow {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal) ease-out;
  background-color: var(--bg-secondary);
}

.faq-answer p {
  padding: 18px 24px;
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--text-secondary);
  border-top: 1px solid var(--card-border);
}

/* 10. Partners & Organizers Card Grid */
.partners-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
  margin-top: 40px;
}

.partner-card {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--border-radius-md);
  padding: 30px 20px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-normal);
}

.partner-card:hover {
  transform: translateY(-5px);
}

.partner-logo {
  max-height: 90px;
  max-width: 100%;
  object-fit: contain;
  margin-bottom: 20px;
  filter: grayscale(10%) contrast(90%);
  transition: filter var(--transition-fast);
}

body.dark-mode .partner-logo {
  filter: brightness(0.9) contrast(100%);
}

.partner-card:hover .partner-logo {
  filter: none;
}

.partner-card h4 {
  font-size: 0.95rem;
  color: var(--text-primary);
  font-weight: 600;
  margin: 0;
  line-height: 1.4;
}

.partner-logo.fix-stb {
  transform: scale(1.3);
  margin-bottom: 20px;
  margin-top: 5px;
}

/* 11. CTA Banner styling */
.hackathon-cta {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  padding: 55px 0;
  color: #FFFFFF;
  border-top: 1px solid var(--card-border);
}

.hackathon-cta h2 {
  font-family: 'Poppins', sans-serif;
  font-size: 2.2rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.hackathon-cta p {
  font-size: 1.1rem;
  opacity: 0.9;
  margin-bottom: 30px;
}

/* 12. Media Queries */
@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }
  
  .hero-content h1 {
    font-size: 2.5rem;
  }
  
  .hero-poster {
    max-width: 500px;
    margin: 0 auto;
    width: 100%;
  }
  
  .organizers-list ul {
    display: inline-block;
    text-align: left;
  }

  .grid-2 {
    grid-template-columns: 1fr;
    gap: 30px;
  }
}

@media (max-width: 576px) {
  .hero-content h1 {
    font-size: 2rem;
  }
  
  .hackathon-hero {
    padding: 60px 0;
  }
  
  .info-card, .about-card, .queries-card, .timeline-section, .eligibility-card, .faq-section {
    padding: 24px;
  }
  
  .problem-statements-card {
    padding: 35px 20px;
  }
}

/* Added Organizers, Sponsors and Query Details styling */
.erp-contacts {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 8px;
}

.contact-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.95rem;
  border-bottom: 1px solid var(--bg-tertiary);
  padding-bottom: 8px;
}

.contact-row:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.contact-row strong {
  color: var(--text-primary);
  font-weight: 500;
}

.contact-row span a {
  color: var(--primary);
  font-size: 0.85rem;
  text-decoration: none;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

body.dark-mode .contact-row span a {
  color: var(--secondary);
}

.sponsors-group-title {
  font-family: 'Poppins', sans-serif;
  font-size: 1.4rem;
  font-weight: 600;
  margin: 40px 0 20px 0;
  color: var(--text-primary);
}

.partner-role {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  font-weight: 600;
  margin-top: 8px;
  letter-spacing: 0.5px;
}

@media (max-width: 480px) {
  .contact-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }
}

/* Hackathon Page Nav Button */
.nav-btn-main {
  border: 1px solid var(--primary);
  border-radius: 50px;
  padding: 6px 16px !important;
  margin-left: 15px;
  transition: all var(--transition-fast) !important;
}

.nav-btn-main:hover {
  background-color: var(--primary);
  color: var(--white) !important;
}

body.dark-mode .nav-btn-main {
  border-color: var(--secondary);
}

body.dark-mode .nav-btn-main:hover {
  background-color: var(--secondary);
  color: #0F172A !important;
}

@media (max-width: 992px) {
  .nav-btn-main {
    margin-left: 0;
    margin-top: 10px;
    display: inline-block;
    text-align: center;
  }
}