/* ==========================================================================
   KFP GROUP — Ultra-Clean Minimalist Design System
   Exact match to user reference screenshot aesthetic:
   - Soft ice-blue rounded hero container (#EBF4F6)
   - Calm blue active tab pills (#5C94B2)
   - Pristine white cards (#FFFFFF) on soft off-white background (#F8FAFC)
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap');

:root {
  --bg-main: #F8FAFC;
  --bg-ice: #EBF4F6;
  --bg-ice-hover: #E3EFF2;
  --bg-card: #FFFFFF;
  
  --border-light: #E2E8F0;
  --border-subtle: #CBD5E1;
  
  --accent-blue: #5C94B2;
  --accent-blue-hover: #4A7F9C;
  --accent-blue-light: #F0F7FA;

  --text-dark: #0F172A;
  --text-body: #334155;
  --text-muted: #64748B;
  --text-light: #94A3B8;

  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-pill: 999px;

  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 10px 30px rgba(15, 23, 42, 0.05);
  --shadow-lg: 0 20px 40px rgba(92, 148, 178, 0.12);

  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-main);
  color: var(--text-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  color: var(--text-dark);
  font-weight: 700;
  letter-spacing: -0.02em;
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header & Navigation (Matching Reference Photo) */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(248, 250, 252, 0.94);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-light);
  padding: 16px 0;
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-dark);
  letter-spacing: -0.03em;
}

.logo-accent {
  color: var(--accent-blue);
}

.nav-wrapper {
  display: flex;
  align-items: center;
}

.nav-tabs {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
  background-color: transparent;
}

.tab-item {
  font-size: 0.925rem;
  font-weight: 600;
  color: var(--text-muted);
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.tab-item:hover {
  color: var(--text-dark);
}

.tab-item.active {
  background-color: var(--accent-blue);
  color: #FFFFFF;
  box-shadow: 0 4px 12px rgba(92, 148, 178, 0.3);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 14px;
}

.lang-switcher {
  display: flex;
  align-items: center;
  background-color: #EDF2F7;
  border-radius: var(--radius-pill);
  padding: 3px;
}

.lang-btn {
  background: none;
  border: none;
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.lang-btn.active {
  background-color: var(--accent-blue);
  color: #FFFFFF;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-sans);
  font-size: 0.925rem;
  font-weight: 600;
  padding: 12px 24px;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--accent-blue);
  color: #FFFFFF;
}

.btn-primary:hover {
  background-color: var(--accent-blue-hover);
  box-shadow: 0 4px 14px rgba(92, 148, 178, 0.35);
  transform: translateY(-1px);
}

.btn-outline {
  background-color: var(--bg-card);
  border-color: var(--border-subtle);
  color: var(--text-dark);
}

.btn-outline:hover {
  border-color: var(--accent-blue);
  color: var(--accent-blue);
}

.btn-lg {
  padding: 14px 28px;
  font-size: 1rem;
}

.btn-sm {
  padding: 6px 16px;
  font-size: 0.85rem;
}

.mobile-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  font-size: 1.25rem;
  padding: 6px 12px;
  cursor: pointer;
}

/* SPA Tab View Container */
.main-content {
  padding: 40px 0 80px;
}

.tab-view {
  display: none;
  animation: fadeIn 0.3s ease;
}

.tab-view.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* HERO ICE BLUE CARD (Exact match to reference photo) */
.hero-ice-card {
  background-color: var(--bg-ice);
  border-radius: var(--radius-lg);
  padding: 64px 56px;
  margin-bottom: 36px;
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(255,255,255,0.6);
}

.hero-text-content h1 {
  font-size: 3rem;
  line-height: 1.15;
  margin-bottom: 20px;
  color: var(--text-dark);
  max-width: 820px;
}

.hero-text-content p {
  font-size: 1.15rem;
  color: var(--text-body);
  max-width: 680px;
  margin-bottom: 32px;
}

.hero-btn-group {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* 3 FEATURE CARDS BELOW HERO (Reference photo layout) */
.features-trio {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 60px;
}

.feature-card {
  background-color: var(--bg-ice);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.feature-card:hover {
  background-color: var(--bg-ice-hover);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.feature-icon-box {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background-color: var(--bg-card);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 20px;
  box-shadow: var(--shadow-sm);
}

.feature-card h3 {
  font-size: 1.3rem;
  margin-bottom: 12px;
}

.feature-card p {
  font-size: 0.925rem;
  color: var(--text-muted);
  margin-bottom: 24px;
  flex-grow: 1;
}

.feature-link {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--accent-blue);
}

/* Section Blocks & Headers */
.section-block {
  margin-top: 60px;
}

.badge-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  color: var(--accent-blue);
  text-transform: uppercase;
  margin-bottom: 8px;
}

.block-header {
  margin-bottom: 32px;
}

.block-title {
  font-size: 2rem;
  margin-bottom: 24px;
}

/* Cases Grid */
.cases-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.case-card-min {
  background-color: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 28px;
  transition: all var(--transition-fast);
  display: flex;
  flex-direction: column;
}

.case-card-min:hover {
  border-color: var(--accent-blue);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.case-badge-min {
  align-self: flex-start;
  background-color: var(--accent-blue-light);
  color: var(--accent-blue);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  margin-bottom: 16px;
}

.case-card-min h3 {
  font-size: 1.25rem;
  margin-bottom: 10px;
}

.case-card-min p {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 20px;
  flex-grow: 1;
}

.case-stats-row {
  display: flex;
  gap: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border-light);
}

.stat-item {
  display: flex;
  flex-direction: column;
}

.stat-val {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--accent-blue);
}

.stat-lbl {
  font-size: 0.75rem;
  color: var(--text-light);
}

/* Industry Page Banners */
.page-banner {
  background-color: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 48px;
  margin-bottom: 40px;
  box-shadow: var(--shadow-sm);
}

.page-banner h1 {
  font-size: 2.4rem;
  margin-bottom: 14px;
}

.page-banner p {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 780px;
}

.services-subgrid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 60px;
}

.sub-service-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 28px;
}

.sub-icon {
  font-size: 2rem;
  margin-bottom: 16px;
}

.sub-service-card h3 {
  font-size: 1.2rem;
  margin-bottom: 10px;
}

.sub-service-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* ==========================================================================
   CAMPUSMIND AI EMBEDDED DEMO SANDBOX (Inside Universities Tab)
   ========================================================================== */
.sandbox-wrapper {
  margin: 40px 0 60px;
  background-color: #0F172A;
  color: #FFFFFF;
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-lg);
}

.sandbox-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
  flex-wrap: wrap;
  gap: 16px;
}

.sandbox-header-row h2 {
  color: #FFFFFF;
  font-size: 1.8rem;
}

.badge-pill-test {
  display: inline-block;
  background-color: rgba(92, 148, 178, 0.2);
  border: 1px solid var(--accent-blue);
  color: #93C5FD;
  font-size: 0.75rem;
  font-weight: 800;
  padding: 4px 14px;
  border-radius: var(--radius-pill);
  margin-bottom: 8px;
}

.sandbox-box {
  background-color: #1E293B;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.sandbox-nav-tabs {
  display: flex;
  background-color: #0F172A;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  overflow-x: auto;
}

.s-tab-btn {
  padding: 14px 20px;
  background: none;
  border: none;
  color: #94A3B8;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
  border-bottom: 2px solid transparent;
}

.s-tab-btn:hover {
  color: #FFFFFF;
}

.s-tab-btn.active {
  color: #60A5FA;
  border-bottom-color: #60A5FA;
  background-color: rgba(96, 165, 250, 0.1);
}

.sandbox-body {
  padding: 28px;
  min-height: 380px;
}

.s-pane {
  display: none;
}

.s-pane.active {
  display: block;
}

.chat-status-bar {
  margin-bottom: 16px;
}

.status-online {
  color: #4ADE80;
  font-size: 0.8rem;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.status-dot {
  width: 8px;
  height: 8px;
  background-color: #4ADE80;
  border-radius: 50%;
  box-shadow: 0 0 8px #4ADE80;
}

.chat-messages {
  height: 240px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 16px;
  padding-right: 6px;
}

.chat-bubble {
  max-width: 85%;
  padding: 12px 16px;
  border-radius: 12px;
  font-size: 0.9rem;
  line-height: 1.5;
}

.chat-bubble.ai {
  background-color: #334155;
  color: #F8FAFC;
  align-self: flex-start;
}

.chat-bubble.user {
  background-color: #2563EB;
  color: #FFFFFF;
  align-self: flex-end;
}

.prompt-chips {
  display: flex;
  gap: 8px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}

.chip-btn {
  background-color: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.15);
  color: #CBD5E1;
  padding: 5px 12px;
  border-radius: var(--radius-pill);
  font-size: 0.75rem;
  cursor: pointer;
}

.chip-btn:hover {
  background-color: #2563EB;
  color: #FFF;
}

.chat-input-form {
  display: flex;
  gap: 10px;
}

.chat-input {
  flex-grow: 1;
  background-color: #0F172A;
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  color: #FFFFFF;
  outline: none;
  font-family: var(--font-sans);
}

/* ==========================================================================
   REALISTIC REGIONAL & SEASONAL ROI CALCULATOR
   ========================================================================== */
.calc-card-container {
  background-color: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 44px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 44px;
  box-shadow: var(--shadow-sm);
}

.calc-inputs-side {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-label {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-dark);
}

.toggle-group {
  display: flex;
  background-color: var(--bg-main);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  padding: 4px;
  gap: 4px;
}

.toggle-btn {
  flex: 1;
  padding: 10px 14px;
  border: none;
  background: none;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  border-radius: 6px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.toggle-btn.active {
  background-color: var(--bg-card);
  color: var(--text-dark);
  box-shadow: var(--shadow-sm);
}

.select-input {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  background-color: var(--bg-main);
  font-family: var(--font-sans);
  font-size: 0.925rem;
  color: var(--text-dark);
  outline: none;
}

.range-slider {
  width: 100%;
  accent-color: var(--accent-blue);
}

.form-label-flex {
  display: flex;
  justify-content: space-between;
  font-size: 0.9rem;
  font-weight: 700;
}

.range-val {
  color: var(--accent-blue);
}

.calc-results-side {
  background-color: var(--bg-ice);
  border-radius: var(--radius-md);
  padding: 36px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  text-align: center;
}

.calc-label-tag {
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: var(--accent-blue);
}

.calc-big-hours {
  font-size: 3rem;
  font-weight: 800;
  color: var(--text-dark);
  margin: 10px 0 4px;
}

.calc-sub-text {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.calc-divider {
  height: 1px;
  background-color: rgba(0,0,0,0.08);
  margin: 20px 0;
}

.calc-money-saved {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--accent-blue-hover);
}

.calc-note {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 8px;
}

/* Footer */
.footer {
  background-color: var(--bg-card);
  border-top: 1px solid var(--border-light);
  padding: 40px 0;
  margin-top: 80px;
}

.footer-flex {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  gap: 24px;
  list-style: none;
}

/* Modal */
.modal-overlay {
  position: fixed;
  top: 0; left: 0; width: 100%; height: 100%;
  background-color: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
  z-index: 1000;
  display: flex; align-items: center; justify-content: center;
  padding: 16px;
  opacity: 0; visibility: hidden;
  transition: all var(--transition-fast);
}

.modal-overlay.open {
  opacity: 1; visibility: visible;
}

.modal-card {
  background-color: var(--bg-card);
  border-radius: var(--radius-lg);
  max-width: 580px; width: 100%;
  padding: 36px; position: relative;
  box-shadow: var(--shadow-lg);
}

.modal-close {
  position: absolute; top: 18px; right: 18px;
  background: none; border: none; font-size: 1.5rem; cursor: pointer;
  color: var(--text-muted);
}

/* Responsive */
@media (max-width: 992px) {
  .features-trio, .cases-grid-3, .services-subgrid { grid-template-columns: 1fr; }
  .hero-ice-card { padding: 40px 28px; }
  .hero-text-content h1 { font-size: 2.2rem; }
  .calc-card-container { grid-template-columns: 1fr; gap: 32px; padding: 28px; }
}

@media (max-width: 768px) {
  .nav-wrapper { display: none; }
  .mobile-toggle { display: block; }
  .hero-btn-group { flex-direction: column; }
  .hero-btn-group .btn { width: 100%; }
}