@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;600;700&family=Montserrat:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,400;1,700&display=swap');
@import url('./tokens.css');

/* ==========================================================================
   RESET & FOUNDATIONS
   ========================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
}

body {
  font-family: var(--font-primary);
  background-color: var(--canvas);
  color: var(--text-primary);
  line-height: var(--leading-body);
  overflow-x: clip;
  transition: background-color var(--duration-medium) var(--ease-cinematic),
              color var(--duration-medium) var(--ease-cinematic);
}

::selection {
  background-color: var(--accent-momentum);
  color: #FFFFFF;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-sharp);
}

button, input, select, textarea {
  font: inherit;
  border: none;
  background: none;
}

button {
  cursor: pointer;
}

img, video, svg {
  display: block;
  max-width: 100%;
  height: auto;
}

ul, ol {
  list-style: none;
}

/* ==========================================================================
   LAYOUT CONTAINERS & GRIDS
   ========================================================================== */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--gutter-desktop);
}

.container-editorial {
  width: 100%;
  max-width: var(--container-editorial);
  margin-inline: auto;
  padding-inline: var(--gutter-desktop);
}

.container-narrow {
  width: 100%;
  max-width: var(--container-narrow);
  margin-inline: auto;
  padding-inline: var(--gutter-desktop);
}

/* Grid Backgrounds */
.bg-light-grid {
  position: relative;
}
.bg-light-grid::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(88, 100, 114, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(88, 100, 114, 0.05) 1px, transparent 1px);
  background-size: 50px 50px;
  pointer-events: none;
  z-index: 0;
}

.bg-dark-radial {
  background: var(--canvas-dark-gradient);
  position: relative;
}
.bg-dark-radial::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(255, 128, 0, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 128, 0, 0.035) 1px, transparent 1px);
  background-size: 50px 50px;
  pointer-events: none;
  z-index: 0;
}

/* ==========================================================================
   HAIRLINE BENTO GRID
   ========================================================================== */
.bento-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1px;
  background-color: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
  z-index: 1;
}

.bento-card {
  background-color: var(--surface-card);
  padding: clamp(24px, 3.5vw, 48px);
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: background-color var(--duration-fast) var(--ease-sharp);
}

.bento-card:hover {
  background-color: var(--surface-light);
}
[data-theme="dark"] .bento-card:hover {
  background-color: var(--surface-dark-elevated);
}

/* Column Spans */
.col-12 { grid-column: span 12; }
.col-8  { grid-column: span 8; }
.col-6  { grid-column: span 6; }
.col-4  { grid-column: span 4; }
.col-3  { grid-column: span 3; }

@media (max-width: 1024px) {
  .col-8, .col-6 { grid-column: span 12; }
  .col-4 { grid-column: span 6; }
  .col-3 { grid-column: span 6; }
}

@media (max-width: 640px) {
  .col-4, .col-3 { grid-column: span 12; }
  .bento-card { padding: 24px; }
}

/* ==========================================================================
   TYPOGRAPHY SPECIFICATIONS
   ========================================================================== */
.hero-display {
  font-family: var(--font-primary);
  font-size: var(--text-mega);
  font-weight: var(--font-weight-black);
  line-height: var(--leading-display);
  letter-spacing: var(--tracking-tightest);
  text-transform: uppercase;
  margin-bottom: 24px;
}

.section-display {
  font-family: var(--font-primary);
  font-size: clamp(32px, 4vw, 56px);
  font-weight: var(--font-weight-black);
  line-height: var(--leading-headline);
  letter-spacing: var(--tracking-tight);
  text-transform: uppercase;
  margin-bottom: 20px;
}

.text-ghost {
  color: var(--text-ghost);
  font-weight: var(--font-weight-bold);
  display: inline-block;
  opacity: 0.85;
}

.text-solid {
  color: var(--text-primary);
  font-weight: var(--font-weight-black);
}

.telemetry-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: var(--font-weight-semibold);
  letter-spacing: var(--tracking-telemetry);
  text-transform: uppercase;
  color: var(--accent-momentum);
  margin-bottom: 16px;
}

.telemetry-tag::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--accent-momentum);
  box-shadow: 0 0 8px var(--accent-momentum-glow);
  animation: pulseDot 2s infinite var(--ease-in-out);
}

@keyframes pulseDot {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.4); opacity: 0.5; }
}

.watermark-text {
  position: absolute;
  font-family: var(--font-primary);
  font-size: var(--text-watermark);
  font-weight: var(--font-weight-black);
  letter-spacing: var(--tracking-tightest);
  text-transform: uppercase;
  color: var(--text-primary);
  opacity: 0.035;
  pointer-events: none;
  user-select: none;
  z-index: 0;
  line-height: 0.85;
}

/* ==========================================================================
   BUTTON & CAPSULE PRIMITIVES
   ========================================================================== */
.btn-pill-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 28px;
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: var(--font-weight-bold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background-color: var(--accent-momentum);
  color: #FFFFFF;
  box-shadow: 0 4px 16px var(--accent-momentum-glow);
  transition: transform var(--duration-fast) var(--ease-sharp),
              background-color var(--duration-fast) var(--ease-sharp),
              box-shadow var(--duration-fast) var(--ease-sharp);
}

.btn-pill-primary:hover {
  background-color: var(--accent-momentum-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px var(--accent-momentum-glow);
}

.btn-pill-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 28px;
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: var(--font-weight-bold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid var(--border);
  color: var(--text-primary);
  background: transparent;
  backdrop-filter: blur(8px);
  transition: all var(--duration-fast) var(--ease-sharp);
}

.btn-pill-ghost:hover {
  border-color: var(--accent-momentum);
  color: var(--accent-momentum);
  transform: translateY(-2px);
}

.btn-pill-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 28px;
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: var(--font-weight-bold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid var(--border-strong, #E2E8F0);
  color: var(--text-primary);
  background: transparent;
  text-decoration: none;
  transition: all var(--duration-fast) var(--ease-sharp);
}

.btn-pill-outline:hover {
  border-color: var(--accent-momentum);
  color: var(--accent-momentum);
  transform: translateY(-2px);
}

.link-arrow-orange {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--accent-momentum);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
  letter-spacing: 0.04em;
  transition: gap var(--duration-fast) var(--ease-sharp),
              color var(--duration-fast) var(--ease-sharp);
}

.link-arrow-orange:hover {
  color: var(--accent-momentum-hover, #EA580C);
  gap: 10px;
}

.pulse-orange-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--accent-momentum);
  box-shadow: 0 0 8px var(--accent-momentum);
  display: inline-block;
  animation: pulseDot 2s infinite ease-in-out;
  flex-shrink: 0;
}

/* Utility Spacers */
.mt-8  { margin-top: 8px; }
.mt-12 { margin-top: 12px; }
.mt-16 { margin-top: 16px; }
.mt-20 { margin-top: 20px; }
.mt-28 { margin-top: 28px; }
.mt-36 { margin-top: 36px; }

.menu-capsule {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(12px);
  color: var(--text-primary);
  transition: all var(--duration-fast) var(--ease-sharp);
}

.menu-capsule:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: var(--accent-momentum);
}

/* ==========================================================================
   3-COLUMN SECTOR STRIP ROW
   ========================================================================== */
.sector-strip-row {
  display: grid;
  grid-template-columns: 200px 1fr 380px;
  gap: clamp(24px, 4vw, 56px);
  padding-block: clamp(32px, 4vw, 56px);
  border-top: 1px solid var(--border);
  align-items: start;
  transition: background-color var(--duration-fast) var(--ease-sharp);
}

.sector-strip-row:last-child {
  border-bottom: 1px solid var(--border);
}

.sector-strip-index {
  font-family: var(--font-mono);
  font-size: 36px;
  font-weight: var(--font-weight-bold);
  color: var(--accent-momentum);
  line-height: 1;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.sector-strip-index span {
  font-size: 12px;
  letter-spacing: var(--tracking-telemetry);
  color: var(--text-muted);
  text-transform: uppercase;
}

.sector-strip-content h3 {
  font-size: clamp(24px, 2.5vw, 36px);
  font-weight: var(--font-weight-black);
  text-transform: uppercase;
  margin-bottom: 16px;
  letter-spacing: var(--tracking-tight);
}

.sector-strip-content p {
  color: var(--text-secondary);
  font-size: var(--text-base);
  margin-bottom: 24px;
  max-width: 640px;
}

.sector-bullets {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.sector-bullet-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: var(--text-sm);
  color: var(--text-primary);
  font-weight: var(--font-weight-medium);
}

.sector-bullet-item svg {
  color: var(--accent-momentum);
  flex-shrink: 0;
}

.sector-strip-media {
  position: relative;
  aspect-ratio: 16 / 10;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border);
  background-color: var(--surface);
}

.sector-strip-media img,
.sector-strip-media video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-medium) var(--ease-cinematic);
}

.sector-strip-row:hover .sector-strip-media img,
.sector-strip-row:hover .sector-strip-media video {
  transform: scale(1.05);
}

@media (max-width: 1024px) {
  .sector-strip-row {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .sector-strip-media {
    max-width: 100%;
  }
}

/* ==========================================================================
   DYNAMIC HOVER-REACTIVE DATA TABLE
   ========================================================================== */
.data-row-table {
  width: 100%;
  border-collapse: collapse;
}

.data-row-item {
  display: grid;
  grid-template-columns: 120px 1fr 180px 48px;
  align-items: center;
  padding: 20px 24px;
  border-top: 1px solid var(--border);
  transition: all var(--duration-fast) var(--ease-sharp);
  cursor: pointer;
}

.data-row-item:last-child {
  border-bottom: 1px solid var(--border);
}

.data-row-item:hover,
.data-row-item.active {
  background-color: #0A0A0A !important;
  color: #FFFFFF !important;
}

.data-row-item:hover .data-row-tag,
.data-row-item.active .data-row-tag {
  color: var(--accent-momentum);
}

.data-row-item:hover .data-row-date,
.data-row-item.active .data-row-date {
  color: #94A3B8;
}

.data-row-date {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--text-muted);
}

.data-row-title {
  font-size: var(--text-base);
  font-weight: var(--font-weight-bold);
  padding-right: 20px;
}

.data-row-tag {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--text-secondary);
  text-transform: uppercase;
}

.data-row-arrow {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  color: var(--accent-momentum);
  transition: transform var(--duration-fast) var(--ease-sharp);
}

.data-row-item:hover .data-row-arrow {
  transform: translateX(6px);
}

/* ==========================================================================
   NUMBERED ACCORDION FAQ
   ========================================================================== */
.accordion-group {
  border-top: 1px solid var(--border);
}

.accordion-item {
  border-bottom: 1px solid var(--border);
}

.accordion-trigger {
  width: 100%;
  display: grid;
  grid-template-columns: 60px 1fr 40px;
  align-items: center;
  padding: clamp(20px, 2.5vw, 32px) 0;
  text-align: left;
  background: transparent;
  cursor: pointer;
}

.accordion-num {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-bold);
  color: var(--text-muted);
}

.accordion-title {
  font-size: clamp(18px, 2vw, 24px);
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
  transition: color var(--duration-fast) var(--ease-sharp);
}

.accordion-trigger:hover .accordion-title {
  color: var(--accent-momentum);
}

.accordion-indicator {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 2px solid var(--border-light-strong);
  background: transparent;
  justify-self: end;
  transition: all var(--duration-base) var(--ease-cinematic);
}

.accordion-item.open .accordion-indicator {
  background-color: var(--accent-momentum);
  border-color: var(--accent-momentum);
  transform: scale(1.2);
}

.accordion-content {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--duration-base) var(--ease-cinematic);
  overflow: hidden;
}

.accordion-item.open .accordion-content {
  grid-template-rows: 1fr;
}

.accordion-inner {
  overflow: hidden;
  padding-left: 60px;
  padding-bottom: clamp(20px, 2.5vw, 32px);
  color: var(--text-secondary);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  max-width: 780px;
}

/* ==========================================================================
   GLOBAL CINEMATIC SCROLL REVEAL & KINETIC TYPOGRAPHY ENGINE
   ========================================================================== */

/* Base Reveal Physics - Hardware-accelerated upward flow */
[data-reveal] {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.85s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.85s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

[data-reveal="fade-up"] {
  opacity: 0;
  transform: translateY(36px);
  transition: opacity 0.85s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.85s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

[data-reveal="card"] {
  opacity: 0;
  transform: translateY(48px);
  transition: opacity 0.9s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.9s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

[data-reveal="scale"] {
  opacity: 0;
  transform: scale(0.95) translateY(28px);
  transition: opacity 0.9s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.9s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

[data-reveal="fade-left"] {
  opacity: 0;
  transform: translateX(44px);
  transition: opacity 0.85s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.85s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

[data-reveal="fade-right"] {
  opacity: 0;
  transform: translateX(-44px);
  transition: opacity 0.85s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.85s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

/* Revealed State Trigger */
[data-reveal].revealed,
.revealed[data-reveal],
.revealed {
  opacity: 1 !important;
  transform: translateY(0) translateX(0) scale(1) !important;
}

/* Dynamic Stagger Delays */
.delay-0 { transition-delay: 0ms !important; }
.delay-1 { transition-delay: 110ms !important; }
.delay-2 { transition-delay: 220ms !important; }
.delay-3 { transition-delay: 330ms !important; }
.delay-4 { transition-delay: 440ms !important; }
.delay-5 { transition-delay: 550ms !important; }

/* Inline Custom Property Stagger Support (e.g. style="--delay: 1") */
[data-reveal][style*="--delay: 0"] { transition-delay: 0ms; }
[data-reveal][style*="--delay: 1"] { transition-delay: 100ms; }
[data-reveal][style*="--delay: 2"] { transition-delay: 200ms; }
[data-reveal][style*="--delay: 3"] { transition-delay: 300ms; }
[data-reveal][style*="--delay: 4"] { transition-delay: 400ms; }
[data-reveal][style*="--delay: 5"] { transition-delay: 500ms; }

/* --------------------------------------------------------------------------
   Kinetic Typography & Masked Line Reveals
   -------------------------------------------------------------------------- */
.kinetic-line-mask {
  overflow: hidden;
  display: block;
  padding-block: 2px;
}

.kinetic-line-inner {
  display: block;
  transform: translateY(115%) rotateX(-8deg);
  transform-origin: 0% 100%;
  opacity: 0;
  transition: transform 0.9s cubic-bezier(0.16, 1, 0.3, 1),
              opacity 0.9s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: transform, opacity;
}

.kinetic-line-inner.revealed,
.revealed .kinetic-line-inner {
  transform: translateY(0%) rotateX(0deg) !important;
  opacity: 1 !important;
}

/* Active Highlight Wave */
.headline-highlight {
  position: relative;
  display: inline-block;
  color: var(--accent-momentum);
}

.headline-highlight::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 2px;
  width: 0;
  height: 2px;
  background-color: var(--accent-momentum);
  transition: width 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.3s;
}

.headline-highlight.active::after,
.revealed .headline-highlight::after {
  width: 100%;
}

/* --------------------------------------------------------------------------
   Interactive Horizontal Rail Primitives
   -------------------------------------------------------------------------- */
.horizontal-rail-wrapper {
  position: relative;
  width: 100%;
  margin-top: 28px;
}

.horizontal-rail-top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  gap: 16px;
  flex-wrap: wrap;
}

.rail-telemetry-hint {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.rail-nav-group {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.rail-nav-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--surface-card);
  border: 1px solid var(--border-light);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-cinematic);
  box-shadow: var(--shadow-subtle);
}

.rail-nav-btn:hover {
  background: var(--accent-momentum);
  border-color: var(--accent-momentum);
  color: #FFFFFF;
  transform: translateY(-2px);
  box-shadow: 0 4px 14px var(--accent-momentum-glow);
}

.rail-nav-btn:active {
  transform: scale(0.94);
}

.horizontal-rail-track {
  display: flex;
  gap: 24px;
  overflow-x: auto;
  scroll-behavior: smooth;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 20px;
  padding-top: 4px;
  margin-inline: -4px;
  scrollbar-width: thin;
  scrollbar-color: var(--accent-momentum) var(--surface-gray);
  cursor: grab;
}

.horizontal-rail-track:active {
  cursor: grabbing;
}

.horizontal-rail-track::-webkit-scrollbar {
  height: 6px;
}

.horizontal-rail-track::-webkit-scrollbar-track {
  background: var(--surface-gray);
  border-radius: var(--radius-pill);
}

.horizontal-rail-track::-webkit-scrollbar-thumb {
  background: var(--accent-momentum);
  border-radius: var(--radius-pill);
}

.rail-card-item {
  flex: 0 0 clamp(320px, 32vw, 420px);
  scroll-snap-align: start;
}

/* ==========================================================================
   ELFSIGHT SOCIAL FEED COMPONENT STYLING
   ========================================================================== */
.renalytica-social-feed-section {
  position: relative;
  padding: clamp(48px, 6vw, 80px) 0;
  background: transparent;
  overflow: hidden;
}

.renalytica-social-feed-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto clamp(20px, 3vw, 32px);
}

.renalytica-social-feed-title {
  font-family: var(--font-primary);
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text-primary);
  margin: 0 0 8px;
  line-height: 1.25;
}

.renalytica-social-feed-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.5;
  margin: 0;
  opacity: 0.85;
}

.renalytica-social-feed-wrapper {
  width: 100%;
  min-height: 380px;
  position: relative;
}