/* ===========================
   GLOBAL AI SUMMIT 2025
   styles.css — scoped to .submission-page
   (safe to include alongside main.css)
   =========================== */

/* ---- CSS VARIABLES (scoped) ---- */
.submission-page {
  --bg-base:      #050B1A;
  --bg-card:      #0A1128;
  --bg-card-alt:  #0D1530;
  --border:       #1C2A4A;
  --border-light: #243356;

  --accent-purple: #7B5EF6;
  --accent-blue:   #4A8EF6;
  --accent-cyan:   #00D4FF;
  --accent-urgent: #FF4D4D;

  --text-primary:   #FFFFFF;
  --text-secondary: #8B9DC3;
  --text-muted:     #4E6290;

  --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;

  --shadow-card: 0 2px 24px rgba(0,0,0,0.4);

  font-family: var(--font);
  background-color: var(--bg-base);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ---- RESET scoped to submission page only ---- */
.submission-page *,
.submission-page *::before,
.submission-page *::after {
  box-sizing: border-box;
}

.submission-page a { text-decoration: none; color: inherit; }
.submission-page ul { list-style: none; }

/* ---- BUTTONS ---- */
.submission-page .btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 22px;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: opacity 0.18s ease, transform 0.18s ease, box-shadow 0.18s ease;
  white-space: nowrap;
}
.submission-page .btn:hover { opacity: 0.88; transform: translateY(-1px); }

.submission-page .btn-primary {
  background: linear-gradient(135deg, #7B5EF6 0%, #5E8EF6 100%);
  color: #fff;
  box-shadow: 0 4px 18px rgba(123,94,246,0.35);
}

.submission-page .btn-outline {
  background: transparent;
  color: #fff;
  border: 2px solid var(--border-light);
}
.submission-page .btn-outline:hover { border-color: var(--accent-purple); }

.submission-page .btn-icon { width: 16px; height: 16px; }
.submission-page .btn-icon-right { width: 16px; height: 16px; }

/* ===========================
   HERO
   =========================== */
.submission-page .submissions-hero {
  max-width: 1400px;
  margin: 0 auto;
  padding:60px 40px;
  display: grid;
  grid-template-columns:45% 55%;
  align-items: center;
  gap: 40px;
  min-height:80vh;
}

.submission-page .hero-eyebrow {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--accent-purple);
  margin-bottom: 18px;
}

.submission-page .hero-heading {
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  font-weight: 800;
  line-height: 1.15;
  color: #fff;
  margin-bottom: 20px;
}

.submission-page .hero-highlight {
  background: linear-gradient(90deg, #7B5EF6 0%, #4A8EF6 60%, #00D4FF 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.submission-page .hero-sub {
  font-size: 0.975rem;
  color: var(--text-secondary);
  max-width: 480px;
  margin-bottom: 32px;
  line-height: 1.75;
}

.submission-page .hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.submission-page .hero-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

.submission-page .ai-head-glow {
  position: relative;
  width: 320px;
  height: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.submission-page .ai-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(123,94,246,0.25);
  animation: ai-pulse-ring 3s ease-in-out infinite;
}

.submission-page .ai-ring-1 { width: 200px; height: 200px; animation-delay: 0s; }
.submission-page .ai-ring-2 { width: 270px; height: 270px; animation-delay: 0.5s; border-color: rgba(74,142,246,0.2); }
.submission-page .ai-ring-3 { width: 320px; height: 320px; animation-delay: 1s; border-color: rgba(0,212,255,0.12); }

@keyframes ai-pulse-ring {
  0%, 100% { opacity: 0.4; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.03); }
}

.submission-page .ai-label {
  font-size: 5rem;
  font-weight: 900;
  letter-spacing: -0.04em;
  background: linear-gradient(135deg, #7B5EF6, #4A8EF6, #00D4FF);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 0 40px rgba(123,94,246,0.6));
  z-index: 2;
}

.submission-page .ai-particles { position: absolute; inset: 0; }

.submission-page .particle {
  position: absolute;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-purple);
  opacity: 0.7;
  animation: ai-float-particle 4s ease-in-out infinite;
}

.submission-page .p1 { top: 10%;  left: 20%; animation-delay: 0s; background: #7B5EF6; }
.submission-page .p2 { top: 20%;  right: 15%; animation-delay: 0.7s; background: #4A8EF6; }
.submission-page .p3 { top: 60%;  left: 10%; animation-delay: 1.2s; background: #00D4FF; }
.submission-page .p4 { bottom: 20%; right: 20%; animation-delay: 0.4s; background: #7B5EF6; }
.submission-page .p5 { bottom: 10%; left: 35%; animation-delay: 1.8s; background: #4A8EF6; }
.submission-page .p6 { top: 40%;  right: 8%; animation-delay: 2.2s; background: #00D4FF; }

@keyframes ai-float-particle {
  0%, 100% { transform: translateY(0) scale(1); opacity: 0.7; }
  50% { transform: translateY(-12px) scale(1.2); opacity: 1; }
}

/* ===========================
   MAIN LAYOUT (GRID)
   =========================== */
.submission-page .main-layout {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 28px 60px;
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 24px;
  align-items: start;
}

/* ===========================
   CARDS
   =========================== */
.submission-page .card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-card);
}

.submission-page .card + .card { margin-top: 20px; }

.submission-page .card-section-title {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--accent-blue);
  margin-bottom: 24px;
}

/* ===========================
   STEPS / PROCESS
   =========================== */
.submission-page .steps {
  display: flex;
  align-items: flex-start;
  gap: 0;
  overflow-x: auto;
  padding-bottom: 4px;
}

.submission-page .step {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  flex: 1;
  min-width: 90px;
  position: relative;
}

.submission-page .step:not(.last)::after {
  content: '';
  position: absolute;
  top: 22px;
  left: calc(50% + 22px);
  right: calc(-50% + 22px);
  height: 1px;
  background: linear-gradient(90deg, var(--accent-purple), var(--border));
  z-index: 0;
}

.submission-page .step-icon {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 2px solid var(--accent-purple);
  background: rgba(123,94,246,0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 10px;
  position: relative;
  z-index: 1;
  flex-shrink: 0;
}

.submission-page .step-icon svg { width: 20px; height: 20px; stroke: var(--accent-purple); }
.submission-page .step-icon-done { border-color: var(--accent-cyan); background: rgba(0,212,255,0.1); }
.submission-page .step-icon-done svg { stroke: var(--accent-cyan); }
.submission-page .step-connector { display: none; }

.submission-page .step-num {
  font-size: 0.72rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 3px;
  line-height: 1.3;
}

.submission-page .step-desc {
  font-size: 0.67rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

/* ===========================
   FORM
   =========================== */
.submission-page .form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}

.submission-page .form-group { display: flex; flex-direction: column; gap: 6px; margin-bottom: 16px; }
.submission-page .form-group.full-width { grid-column: 1 / -1; }

.submission-page .form-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.submission-page .req { color: #FF4D4D; margin-left: 2px; }

.submission-page .form-input,
.submission-page .form-select,
.submission-page .form-textarea {
  background: var(--bg-base);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  color: #fff;
  font-family: var(--font);
  font-size: 0.875rem;
  padding: 11px 14px;
  width: 100%;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
  outline: none;
  -webkit-appearance: none;
  appearance: none;
}

.submission-page .form-input::placeholder,
.submission-page .form-textarea::placeholder { color: var(--text-muted); }

.submission-page .form-input:focus,
.submission-page .form-select:focus,
.submission-page .form-textarea:focus {
  border-color: var(--accent-purple);
  box-shadow: 0 0 0 3px rgba(123,94,246,0.2);
}

.submission-page .form-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%238B9DC3' stroke-width='2'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 38px;
  cursor: pointer;
}

.submission-page .form-select option { background: #0A1128; color: #fff; }

.submission-page .form-textarea {
  resize: vertical;
  min-height: 120px;
  line-height: 1.6;
}

.submission-page .char-count {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-align: right;
  margin-top: 4px;
}

/* File Drop Zone */
.submission-page .file-drop-zone {
  border: 2px dashed var(--border-light);
  border-radius: var(--radius-md);
  background: var(--bg-base);
  padding: 28px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  transition: border-color 0.18s ease, background 0.18s ease;
  cursor: default;
}

.submission-page .file-drop-zone.drag-over {
  border-color: var(--accent-purple);
  background: rgba(123,94,246,0.06);
}

.submission-page .file-drop-zone.file-selected { border-color: var(--accent-cyan); }

.submission-page .file-drop-inner {
  display: flex;
  align-items: center;
  gap: 14px;
}

.submission-page .file-cloud-icon svg {
  width: 36px;
  height: 36px;
  stroke: var(--accent-purple);
}

.submission-page .file-drop-text {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.submission-page .file-drop-hint {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 3px;
}

.submission-page .browse-link {
  color: var(--accent-purple);
  text-decoration: underline;
  cursor: pointer;
  font-weight: 600;
}

.submission-page .btn-browse {
  background: transparent;
  border: 1px solid var(--border-light);
  color: #fff;
  padding: 9px 18px;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  flex-shrink: 0;
  transition: border-color 0.15s ease;
}

.submission-page .btn-browse:hover { border-color: var(--accent-purple); }

.submission-page .form-submit-area {
  margin-top: 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}

.submission-page .btn-submit {
  width: 100%;
  justify-content: center;
  padding: 14px;
  font-size: 1rem;
}

.submission-page .form-legal {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-align: center;
}

.submission-page .legal-link {
  color: var(--accent-purple);
  text-decoration: underline;
}

/* ===========================
   SIDEBAR
   =========================== */
.submission-page .right-col { position: sticky; top: 80px; }
.submission-page .sidebar-card { margin-bottom: 20px; }
.submission-page .sidebar-card:last-child { margin-bottom: 0; }

.submission-page .sidebar-title {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--accent-blue);
  margin-bottom: 20px;
}

.submission-page .dates-list { display: flex; flex-direction: column; gap: 14px; }

.submission-page .date-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.submission-page .date-icon {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  background: rgba(74,142,246,0.12);
  border: 1px solid rgba(74,142,246,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.submission-page .date-icon svg { width: 16px; height: 16px; stroke: var(--accent-blue); }
.submission-page .date-label { font-size: 0.8rem; color: var(--text-secondary); line-height: 1.3; }
.submission-page .date-value { font-size: 0.82rem; font-weight: 600; color: #fff; margin-top: 2px; }
.submission-page .date-urgent { color: #FF4D4D !important; }

.submission-page .why-list { display: flex; flex-direction: column; gap: 16px; }

.submission-page .why-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.submission-page .why-icon {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  background: rgba(123,94,246,0.12);
  border: 1px solid rgba(123,94,246,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.submission-page .why-icon svg { width: 16px; height: 16px; stroke: var(--accent-purple); }
.submission-page .why-title { font-size: 0.82rem; font-weight: 700; color: #fff; margin-bottom: 3px; }
.submission-page .why-desc { font-size: 0.75rem; color: var(--text-secondary); line-height: 1.5; }

.submission-page .help-card { border-color: rgba(123,94,246,0.2); }
.submission-page .help-text { font-size: 0.8rem; color: var(--text-secondary); margin-bottom: 16px; line-height: 1.6; }
.submission-page .help-contact { display: flex; flex-direction: column; gap: 10px; }

.submission-page .help-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.82rem;
  color: #fff;
}

.submission-page .help-icon { width: 16px; height: 16px; stroke: var(--accent-purple); flex-shrink: 0; }

/* ===========================
   SESSION TRACKS SECTION
   =========================== */
.submission-page .tracks-section {
  background: var(--bg-card-alt);
  border-top: 1px solid var(--border);
  padding: 56px 28px 60px;
}

.submission-page .tracks-title {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--accent-blue);
  text-align: center;
  margin-bottom: 36px;
}

.submission-page .tracks-grid {
  max-width: 1200px;
  margin: 0 auto 36px;
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
}

.submission-page .track-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px 16px 20px;
  text-align: center;
  transition: border-color 0.18s ease, transform 0.18s ease, box-shadow 0.18s ease;
}

.submission-page .track-card:hover {
  border-color: var(--accent-purple);
  transform: translateY(-3px);
  box-shadow: 0 8px 28px rgba(123,94,246,0.2);
}

.submission-page .track-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
}

.submission-page .track-name { font-size: 0.82rem; font-weight: 700; color: #fff; margin-bottom: 6px; line-height: 1.3; }
.submission-page .track-desc { font-size: 0.72rem; color: var(--text-secondary); line-height: 1.5; }
.submission-page .tracks-action { display: flex; justify-content: center; }

.submission-page .btn-outline-tracks {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 28px;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 600;
  color: #fff;
  transition: border-color 0.18s ease, transform 0.18s ease;
}

.submission-page .btn-outline-tracks:hover {
  border-color: var(--accent-purple);
  transform: translateY(-1px);
}

.submission-page .btn-outline-tracks svg { width: 16px; height: 16px; stroke: currentColor; }

/* ===========================
   RESPONSIVE
   =========================== */
@media (max-width: 1024px) {
  .submission-page .tracks-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 900px) {
  .submission-page .submissions-hero {
    grid-template-columns: 1fr;
    padding: 40px 20px 36px;
    text-align: center;
  }
  .submission-page .hero-sub { margin: 0 auto 28px; }
  .submission-page .hero-actions { justify-content: center; }
  .submission-page .hero-visual { display: none; }
  .submission-page .main-layout {
    grid-template-columns: 1fr;
    padding: 0 20px 40px;
  }
  .submission-page .right-col { position: static; }
}

@media (max-width: 600px) {
  .submission-page .form-grid { grid-template-columns: 1fr; }
  .submission-page .steps { gap: 8px; }
  .submission-page .step:not(.last)::after { display: none; }
  .submission-page .tracks-grid { grid-template-columns: repeat(2, 1fr); }
  .submission-page .file-drop-zone { flex-direction: column; text-align: center; align-items: center; }
  .submission-page .file-drop-inner { flex-direction: column; text-align: center; }
}