/*
 * SchoolPlex Inertia Marketing Design System
 * Inspired by Apple-class design: clarity, restraint, motion, responsiveness.
 */

:root {
  /* Common variables */
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-display: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  
  --transition-smooth: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  
  --border-radius-sm: 8px;
  --border-radius-md: 12px;
  --border-radius-lg: 24px;
  --border-radius-pill: 9999px;
  
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.1);
}

/* Light Theme Variables */
html[data-theme="light"] {
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f1f5f9;
  
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-tertiary: #94a3b8;
  
  --border-primary: rgba(148, 163, 184, 0.12);
  --border-secondary: rgba(148, 163, 184, 0.25);
  
  --accent-blue: #0284c7;
  --accent-blue-hover: #0369a1;
  --accent-blue-light: rgba(2, 132, 199, 0.08);
  
  --accent-teal: #0d9488;
  --accent-pink: #db2777;
  
  --glass-bg: rgba(255, 255, 255, 0.7);
  --glass-border: rgba(255, 255, 255, 0.4);
  --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.04);
}

/* Dark Theme Variables */
html[data-theme="dark"] {
  --bg-primary: #090d16;
  --bg-secondary: #111827;
  --bg-tertiary: #1f2937;
  
  --text-primary: #f9fafb;
  --text-secondary: #cbd5e1;
  --text-tertiary: #94a3b8;
  
  --border-primary: rgba(148, 163, 184, 0.16);
  --border-secondary: rgba(148, 163, 184, 0.28);
  
  --accent-blue: #38bdf8;
  --accent-blue-hover: #7dd3fc;
  --accent-blue-light: rgba(56, 189, 248, 0.14);
  
  --accent-teal: #2dd4bf;
  --accent-pink: #f472b6;
  
  --glass-bg: rgba(17, 24, 39, 0.82);
  --glass-border: rgba(148, 163, 184, 0.16);
  --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
}

/* Global resets & smoothness */
body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  margin: 0;
  padding: 0;
  overflow-x: hidden;
  transition: background-color 0.3s ease, color 0.3s ease;
  -webkit-font-smoothing: antialiased;
}

/* Layout Utilities */
.spx-container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  box-sizing: border-box;
}

/* Apple-style restrained padding */
.spx-section {
  padding: 96px 0;
}

@media (max-width: 768px) {
  .spx-section {
    padding: 64px 0;
  }
}

/* Elegant Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  margin: 0 0 16px 0;
  line-height: 1.2;
  letter-spacing: 0;
}

.spx-title-large {
  font-size: 56px;
  font-weight: 700;
  line-height: 1.1;
  background: linear-gradient(135deg, var(--text-primary) 30%, var(--accent-blue) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.spx-title-medium {
  font-size: 40px;
  font-weight: 700;
  letter-spacing: 0;
}

.spx-title-small {
  font-size: 24px;
  font-weight: 700;
}

.spx-body-lead {
  font-size: 20px;
  font-weight: 400;
  color: var(--text-secondary);
  line-height: 1.6;
}

.spx-body-caption {
  font-size: 14px;
  color: var(--text-tertiary);
}

@media (max-width: 768px) {
  .spx-title-large {
    font-size: 38px;
  }
  .spx-title-medium {
    font-size: 28px;
  }
}

/* Glassmorphism Premium Cards */
.spx-glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  border-radius: var(--border-radius-md);
  padding: 32px;
  transition: var(--transition-smooth);
}

.spx-glass-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-secondary);
}

/* Interactive Navigation Bar */
.spx-nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-primary);
  height: 72px;
  display: flex;
  align-items: center;
  transition: var(--transition-smooth);
}

.spx-nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

.spx-logo-link {
  display: flex;
  align-items: center;
  text-decoration: none;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 22px;
  color: var(--text-primary);
}

.spx-logo-symbol {
  color: var(--accent-blue);
  margin-right: 6px;
}

.spx-nav-menu {
  display: flex;
  gap: 32px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.spx-nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  transition: var(--transition-smooth);
  position: relative;
  padding: 8px 0;
}

.spx-nav-link:hover, .spx-nav-link.active {
  color: var(--text-primary);
}

.spx-nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--accent-blue);
  border-radius: var(--border-radius-pill);
}

.spx-nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Responsive Menu Button */
.spx-menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 24px;
  cursor: pointer;
}

@media (max-width: 992px) {
  .spx-menu-toggle {
    display: block;
  }
  .spx-nav-menu {
    position: absolute;
    top: 72px;
    left: 0;
    width: 100%;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-primary);
    flex-direction: column;
    padding: 24px;
    gap: 16px;
    display: none;
    box-shadow: var(--shadow-md);
  }
  .spx-nav-menu.open {
    display: flex;
  }
  .spx-nav-actions {
    display: none;
  }
  .spx-nav-actions.open {
    display: flex;
    margin-top: 16px;
  }
}

/* Apple-style Restrained Buttons */
.spx-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 600;
  padding: 12px 24px;
  border-radius: var(--border-radius-pill);
  transition: var(--transition-bounce);
  cursor: pointer;
  text-decoration: none;
  border: none;
  gap: 8px;
}

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

.spx-btn-primary:hover {
  background-color: var(--accent-blue-hover);
  transform: scale(1.02);
}

.spx-btn-secondary {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border-primary);
}

.spx-btn-secondary:hover {
  background-color: var(--border-primary);
  transform: scale(1.02);
}

.spx-btn-text {
  background: none;
  color: var(--accent-blue);
  padding: 8px 16px;
}

.spx-btn-text:hover {
  color: var(--accent-blue-hover);
  text-decoration: underline;
}

/* Theme Switcher Toggle */
.spx-theme-toggle {
  background: none;
  border: 1px solid var(--border-primary);
  color: var(--text-secondary);
  width: 40px;
  height: 40px;
  border-radius: var(--border-radius-pill);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.spx-theme-toggle:hover {
  color: var(--text-primary);
  background-color: var(--border-primary);
  transform: rotate(15deg);
}

/* Premium Forms & Inputs */
.spx-form-group {
  margin-bottom: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.spx-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
}

.spx-input, .spx-textarea, .spx-select {
  font-family: var(--font-sans);
  font-size: 15px;
  padding: 14px 18px;
  border-radius: var(--border-radius-md);
  border: 1px solid var(--border-primary);
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  transition: var(--transition-smooth);
  outline: none;
}

.spx-input:focus, .spx-textarea:focus, .spx-select:focus {
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px var(--accent-blue-light);
}

.spx-textarea {
  min-height: 120px;
  resize: vertical;
}

/* Interactive Slider on Homepage */
.spx-slider-container {
  display: grid;
  grid-template-columns: minmax(220px, 0.7fr) minmax(0, 1.35fr);
  gap: 40px;
  align-items: stretch;
}

.spx-slider-nav {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.spx-slider-tab {
  width: 100%;
  padding: 16px 18px;
  border-radius: var(--border-radius-md);
  border: 1px solid var(--border-primary);
  background: var(--bg-secondary);
  color: var(--text-primary);
  cursor: pointer;
  text-align: left;
  transition: var(--transition-smooth);
  display: flex;
  align-items: center;
  min-height: 56px;
}

.spx-slider-tab.active {
  border-color: var(--accent-blue);
  background: var(--accent-blue-light);
  color: var(--text-primary);
}

.spx-slider-tab:hover {
  border-color: var(--border-secondary);
}

.spx-slider-tab-title {
  font-weight: 700;
  font-size: 16px;
  line-height: 1.35;
}

.spx-slider-view {
  min-height: 430px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

html[data-theme="dark"] .spx-slider-tab {
  background: rgba(15, 23, 42, 0.9);
  border-color: rgba(148, 163, 184, 0.18);
  color: #f8fafc;
}

html[data-theme="dark"] .spx-slider-tab.active {
  background: rgba(56, 189, 248, 0.16);
  border-color: rgba(56, 189, 248, 0.72);
}

html[data-theme="dark"] .spx-slider-view {
  background: rgba(15, 23, 42, 0.94);
  border-color: rgba(148, 163, 184, 0.2);
}

@media (max-width: 992px) {
  .spx-slider-container {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

/* Supported Institution Types */
.spx-institutions-section {
  overflow: hidden;
}

.spx-institution-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 28px;
}

.spx-institution-card {
  min-width: 0;
}

.spx-institution-image {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  border-radius: var(--border-radius-md);
  background: var(--bg-tertiary);
  margin-bottom: 18px;
}

.spx-institution-title {
  color: var(--text-primary);
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 700;
  line-height: 1.25;
  margin: 0 0 10px 0;
}

.spx-institution-copy {
  color: var(--text-secondary);
  font-size: 16px;
  line-height: 1.55;
  margin: 0;
}

html[data-theme="dark"] .spx-institution-image {
  border: 1px solid rgba(148, 163, 184, 0.14);
}

@media (max-width: 1100px) {
  .spx-institution-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  .spx-institution-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
  }
}

@media (max-width: 560px) {
  .spx-institution-grid {
    grid-template-columns: 1fr;
  }

  .spx-institution-image {
    aspect-ratio: 16 / 10;
  }
}

/* Solution Detail Pages */
.spx-solution-hero {
  padding: 108px 0 82px;
  border-bottom: 1px solid var(--border-primary);
}

.spx-solution-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--accent-blue);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  margin-bottom: 36px;
}

.spx-solution-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(420px, 1.14fr);
  gap: 64px;
  align-items: center;
}

.spx-solution-title {
  color: var(--text-primary);
  font-family: var(--font-display);
  font-size: clamp(42px, 5.6vw, 72px);
  font-weight: 700;
  line-height: 1.02;
  margin: 0 0 18px;
}

.spx-solution-lead {
  color: var(--text-secondary);
  font-size: 22px;
  line-height: 1.45;
  max-width: 620px;
  margin: 0;
}

.spx-solution-bullets {
  display: grid;
  gap: 12px;
  list-style: none;
  padding: 0;
  margin: 0 0 34px;
}

.spx-solution-bullets li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  color: var(--text-secondary);
  font-size: 16px;
  line-height: 1.5;
}

.spx-solution-bullets i {
  color: var(--accent-blue);
  margin-top: 4px;
}

.spx-solution-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.spx-dashboard-preview {
  border: 1px solid var(--border-secondary);
  border-radius: var(--border-radius-md);
  background:
    linear-gradient(180deg, rgba(2, 132, 199, 0.08), transparent 44%),
    linear-gradient(180deg, var(--bg-secondary), var(--bg-tertiary));
  padding: 28px;
  min-height: 360px;
}

.spx-dashboard-preview__bar {
  display: flex;
  gap: 8px;
  margin-bottom: 22px;
}

.spx-dashboard-preview__bar span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--border-secondary);
}

.spx-dashboard-preview__metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 30px;
}

.spx-dashboard-preview__metrics div {
  border: 1px solid var(--border-primary);
  border-radius: var(--border-radius-sm);
  padding: 14px;
  background: var(--glass-bg);
}

.spx-dashboard-preview__metrics strong {
  display: block;
  color: var(--text-primary);
  font-size: 26px;
  line-height: 1;
  margin-bottom: 8px;
}

.spx-dashboard-preview__metrics span {
  color: var(--text-secondary);
  font-size: 12px;
  line-height: 1.35;
}

.spx-dashboard-preview__table {
  display: grid;
  gap: 16px;
}

.spx-dashboard-preview__table div {
  display: grid;
  grid-template-columns: 140px 1fr;
  align-items: center;
  gap: 12px;
}

.spx-dashboard-preview__table div > span:first-child {
  color: var(--text-secondary);
  font-size: 13px;
}

.spx-dashboard-preview__table div > span:last-child {
  display: block;
  height: 12px;
  border-radius: var(--border-radius-pill);
  background: var(--accent-blue);
}

.spx-solution-intro,
.spx-solution-modules,
.spx-solution-capabilities,
.spx-solution-proof {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-primary);
  border-bottom: 1px solid var(--border-primary);
}

.spx-solution-proof .spx-title-medium {
  text-align: center;
  margin-bottom: 42px;
}

.spx-solution-intro-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.72fr);
  gap: 56px;
  align-items: start;
}

.spx-solution-intro-grid .spx-title-medium {
  margin-bottom: 18px;
}

.spx-solution-intro-grid p {
  color: var(--text-secondary);
  font-size: 18px;
  line-height: 1.7;
  margin: 0;
}

.spx-solution-workflow-row h3 {
  color: var(--text-primary);
  font-size: 22px;
  margin-bottom: 10px;
}

.spx-solution-workflow-row p,
.spx-solution-section-head p {
  color: var(--text-secondary);
  font-size: 16px;
  line-height: 1.6;
  margin: 0;
}

.spx-solution-section-head {
  max-width: 760px;
  margin: 0 auto 48px;
  text-align: center;
}

.spx-module-stack {
  --stack-top: 92px;
  display: grid;
  gap: 0;
  max-width: 980px;
  margin: 0 auto;
}

.spx-module-stack-card {
  position: sticky;
  top: calc(var(--stack-top) + (var(--stack-index) * 18px));
  display: grid;
  grid-template-columns: minmax(180px, 0.42fr) minmax(0, 1fr);
  gap: 30px;
  min-height: 330px;
  border: 1px solid var(--border-secondary);
  border-radius: var(--border-radius-md);
  background: var(--bg-primary);
  padding: 28px;
  margin-bottom: 72px;
}

.spx-module-stack-card__media {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border-radius: var(--border-radius-md);
  background:
    linear-gradient(135deg, var(--accent-blue-light), transparent),
    var(--bg-secondary);
  color: var(--accent-blue);
  padding: 24px;
}

.spx-module-stack-card__media i {
  font-size: 42px;
}

.spx-module-stack-card__media span {
  color: var(--text-tertiary);
  font-size: 14px;
  font-weight: 700;
}

.spx-module-stack-card__body {
  align-self: center;
}

.spx-module-stack-card__body h3 {
  color: var(--text-primary);
  font-size: 30px;
  margin-bottom: 14px;
}

.spx-module-stack-card__body p {
  color: var(--text-secondary);
  font-size: 17px;
  line-height: 1.65;
  margin: 0;
}

.spx-module-stack-card__body ul {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px 18px;
  list-style: none;
  padding: 0;
  margin: 26px 0 0;
}

.spx-module-stack-card__body li {
  display: flex;
  gap: 10px;
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.4;
}

.spx-module-stack-card__body li i {
  color: var(--accent-blue);
  margin-top: 3px;
}

.spx-solution-workflow {
  display: grid;
  gap: 52px;
}

.spx-solution-workflow-row {
  display: grid;
  grid-template-columns: minmax(260px, 0.9fr) minmax(0, 1.1fr);
  gap: 42px;
  align-items: center;
}

.spx-solution-workflow-row:nth-child(even) img {
  order: 2;
}

.spx-solution-workflow-row img {
  width: 100%;
  aspect-ratio: 16 / 11;
  object-fit: cover;
  border-radius: var(--border-radius-md);
  background: var(--bg-tertiary);
}

.spx-solution-workflow-row span {
  display: inline-flex;
  color: var(--accent-blue);
  font-weight: 700;
  font-size: 14px;
  margin-bottom: 12px;
}

.spx-solution-capability-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.spx-solution-capability {
  display: flex;
  flex-direction: column;
  gap: 8px;
  border: 1px solid var(--border-primary);
  border-radius: var(--border-radius-md);
  background: var(--bg-primary);
  padding: 22px;
}

.spx-solution-capability i {
  color: var(--accent-blue);
}

.spx-solution-capability strong {
  color: var(--text-primary);
  font-size: 16px;
}

.spx-solution-capability span {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.5;
}

.spx-solution-readiness {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  border: 1px solid var(--border-secondary);
  border-radius: var(--border-radius-md);
  background: linear-gradient(135deg, var(--bg-secondary), var(--accent-blue-light));
  padding: 34px;
}

.spx-solution-readiness h2,
.spx-solution-final h2 {
  color: var(--text-primary);
  font-size: 30px;
  margin-bottom: 12px;
}

.spx-solution-readiness p,
.spx-solution-final p {
  color: var(--text-secondary);
  font-size: 16px;
  line-height: 1.6;
  margin: 0;
}

.spx-solution-quote-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.spx-solution-quote {
  border: 1px solid var(--border-primary);
  border-radius: var(--border-radius-md);
  background: var(--bg-primary);
  padding: 28px;
  margin: 0;
}

.spx-solution-quote blockquote {
  color: var(--text-primary);
  font-size: 19px;
  line-height: 1.55;
  margin: 0 0 22px;
}

.spx-solution-quote figcaption {
  display: grid;
  gap: 4px;
}

.spx-solution-quote strong {
  color: var(--text-primary);
}

.spx-solution-quote span {
  color: var(--text-secondary);
  font-size: 14px;
}

.spx-related-solutions {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.spx-related-solution {
  display: flex;
  align-items: center;
  gap: 14px;
  border: 1px solid var(--border-primary);
  border-radius: var(--border-radius-md);
  background: var(--bg-secondary);
  color: var(--text-primary);
  text-decoration: none;
  padding: 18px;
}

.spx-related-solution span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: var(--border-radius-sm);
  background: var(--accent-blue-light);
  color: var(--accent-blue);
}

.spx-related-solution strong {
  flex: 1;
}

.spx-related-solution > i {
  color: var(--text-tertiary);
}

.spx-solution-final {
  text-align: center;
  border-radius: var(--border-radius-md);
  background: var(--bg-secondary);
  border: 1px solid var(--border-secondary);
  padding: 48px 28px;
}

.spx-solution-final p {
  max-width: 580px;
  margin: 0 auto 28px;
}

.spx-solution-final div {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 14px;
}

@media (max-width: 992px) {
  .spx-solution-hero-grid,
  .spx-solution-intro-grid,
  .spx-module-stack-card,
  .spx-solution-workflow-row {
    grid-template-columns: 1fr;
  }

  .spx-module-stack-card {
    position: relative;
    top: auto;
    min-height: auto;
    margin-bottom: 24px;
  }

  .spx-module-stack-card__media {
    min-height: 150px;
  }

  .spx-solution-workflow-row:nth-child(even) img {
    order: 0;
  }

  .spx-solution-capability-grid,
  .spx-related-solutions {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .spx-solution-hero {
    padding: 88px 0 64px;
  }

  .spx-dashboard-preview__metrics,
  .spx-solution-capability-grid,
  .spx-module-stack-card__body ul,
  .spx-solution-quote-grid,
  .spx-related-solutions {
    grid-template-columns: 1fr;
  }

  .spx-dashboard-preview__table div {
    grid-template-columns: 1fr;
  }

  .spx-solution-readiness {
    align-items: stretch;
    flex-direction: column;
  }
}

/* Interactive Pricing Estimator Builder */
.spx-pricing-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 32px;
}

@media (max-width: 992px) {
  .spx-pricing-grid {
    grid-template-columns: 1fr;
  }
}

.spx-pricing-control-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-primary);
  border-radius: var(--border-radius-md);
  padding: 32px;
}

.spx-pricing-summary-card {
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
  border: 1px solid var(--border-secondary);
  border-radius: var(--border-radius-md);
  padding: 32px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  height: max-content;
  position: sticky;
  top: 104px;
}

/* Band Selector slider */
.spx-band-selector {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 16px;
}

.spx-band-btn {
  background: var(--bg-secondary);
  border: 1px solid var(--border-primary);
  color: var(--text-secondary);
  padding: 12px 20px;
  border-radius: var(--border-radius-md);
  cursor: pointer;
  font-weight: 600;
  transition: var(--transition-smooth);
}

.spx-band-btn.active {
  background: var(--accent-blue);
  color: #ffffff;
  border-color: var(--accent-blue);
  box-shadow: 0 4px 12px rgba(2, 132, 199, 0.3);
}

/* Solutions selection cards */
.spx-select-solution-card {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px;
  border-radius: var(--border-radius-md);
  border: 1px solid var(--border-primary);
  background: var(--bg-secondary);
  cursor: pointer;
  transition: var(--transition-smooth);
  margin-top: 16px;
}

.spx-select-solution-card:hover {
  border-color: var(--border-secondary);
}

.spx-select-solution-card.active {
  border-color: var(--accent-blue);
  background: var(--accent-blue-light);
}

.spx-checkbox {
  width: 20px;
  height: 20px;
  border-radius: var(--border-radius-sm);
  border: 2px solid var(--border-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: transparent;
  transition: var(--transition-smooth);
  margin-top: 2px;
}

.spx-select-solution-card.active .spx-checkbox {
  background: var(--accent-blue);
  border-color: var(--accent-blue);
  color: #ffffff;
}

/* Solutions Grid & Badges */
.spx-solutions-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 32px;
}

.spx-badge {
  display: inline-flex;
  align-items: center;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: var(--border-radius-pill);
  text-transform: uppercase;
}

.spx-badge-blue {
  background-color: var(--accent-blue-light);
  color: var(--accent-blue);
}

/* WhatsApp Floating button style */
.spx-whatsapp-float {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 56px;
  height: 56px;
  background-color: #25d366;
  color: white;
  border-radius: var(--border-radius-pill);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  box-shadow: 0 4px 16px rgba(37, 211, 102, 0.4);
  text-decoration: none;
  z-index: 999;
  transition: var(--transition-bounce);
}

.spx-whatsapp-float:hover {
  transform: scale(1.1) rotate(5deg);
  box-shadow: 0 8px 24px rgba(37, 211, 102, 0.6);
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.animate-fade-in {
  animation: fadeIn 0.4s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* Hero Section */
.spx-hero {
  padding-top: 160px;
  padding-bottom: 96px;
  text-align: center;
}

/* Footer style */
.spx-footer {
  border-top: 1px solid var(--border-primary);
  background-color: var(--bg-secondary);
  padding: 64px 0 32px 0;
  margin-top: 96px;
}

.spx-footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

@media (max-width: 768px) {
  .spx-footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

.spx-footer-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.spx-footer-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  transition: var(--transition-smooth);
}

.spx-footer-link:hover {
  color: var(--text-primary);
}

.spx-footer-bottom {
  border-top: 1px solid var(--border-primary);
  padding-top: 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.spx-footer-copyright {
  font-size: 14px;
  color: var(--text-tertiary);
}

/* Alert styles */
.spx-alert {
  padding: 16px 20px;
  border-radius: var(--border-radius-md);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 500;
  font-size: 15px;
}

.spx-alert-success {
  background-color: rgba(13, 148, 136, 0.1);
  color: var(--accent-teal);
  border: 1px solid rgba(13, 148, 136, 0.2);
}

.spx-alert-error {
  background-color: rgba(219, 39, 119, 0.1);
  color: var(--accent-pink);
  border: 1px solid rgba(219, 39, 119, 0.2);
}

/* Layout Utilities */
.text-center {
  text-align: center;
}

/* Responsive overrides for inline grids */
@media (max-width: 768px) {
  .spx-hero {
    padding-top: 120px;
    padding-bottom: 64px;
  }
  .spx-hero .spx-title-large {
    font-size: 32px;
  }
  .spx-hero .spx-body-lead {
    font-size: 17px;
  }

  /* Stack any 2-col inline grids on mobile */
  .spx-section [style*="grid-template-columns: 1fr 1fr"],
  .spx-section [style*="grid-template-columns: 1fr 1.5fr"] {
    grid-template-columns: 1fr !important;
  }

  /* Fix the hero button row on very small screens */
  .spx-hero [style*="display: flex"][style*="gap: 16px"] {
    flex-direction: column;
    align-items: stretch;
  }
}