@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700&family=Newsreader:ital,opsz,wght@0,6..72,400;0,6..72,500;1,6..72,400&display=swap');
@import url('./tokens.css');

/* ==========================================================================
   Zero Animation Contract (Strict Baseline)
   Applies to all viewports, controls, artwork and interactions.
   ========================================================================== */
html {
  scroll-behavior: auto !important;
}

.td-site *,
.td-site *::before,
.td-site *::after {
  animation: none !important;
  transition: none !important;
  scroll-behavior: auto !important;
}

/* ==========================================================================
   CSS Reset & Base Styles
   ========================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body.td-site {
  background-color: var(--td-bg);
  color: var(--td-text);
  font-family: var(--td-font-sans);
  font-size: 18px;
  line-height: 1.7;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Skip link */
.td-skip-link {
  position: absolute;
  top: -100px;
  left: 20px;
  background: var(--td-button);
  color: var(--td-button-text);
  padding: 10px 16px;
  font-size: 14px;
  font-weight: 500;
  z-index: 9999;
  text-decoration: none;
}
.td-skip-link:focus {
  top: 20px;
}

/* Keyboard focus indicators */
:focus-visible {
  outline: 2px solid var(--td-focus);
  outline-offset: 3px;
}

/* Typography Hierarchy — Clean Modern Sans-Serif (Manrope) */
h1, h2, h3, h4 {
  font-family: var(--td-font-sans);
  color: var(--td-text);
  font-weight: 600;
  letter-spacing: -0.02em;
}

.td-serif {
  font-family: var(--td-font-serif);
}

h1.td-hero-title {
  font-size: clamp(38px, 5vw, 68px);
  line-height: 1.08;
  font-weight: 600;
  letter-spacing: -0.03em;
  margin-bottom: var(--td-space-5);
}

h1.td-page-title {
  font-size: clamp(34px, 4.2vw, 54px);
  line-height: 1.12;
  font-weight: 600;
  letter-spacing: -0.025em;
  margin-bottom: var(--td-space-4);
}

h2.td-section-title {
  font-size: clamp(26px, 3vw, 40px);
  line-height: 1.18;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: var(--td-space-4);
}

h3.td-editorial-title {
  font-size: clamp(20px, 2vw, 26px);
  line-height: 1.25;
  font-weight: 600;
  margin-bottom: var(--td-space-3);
}

p {
  margin-bottom: var(--td-space-4);
  color: var(--td-text);
}

p.td-lead {
  font-size: 20px;
  line-height: 1.6;
  color: var(--td-text);
}

.td-muted {
  color: var(--td-muted);
}

.td-eyebrow {
  display: block;
  font-family: var(--td-font-sans);
  font-size: 12px;
  line-height: 1.5;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--td-accent-strong);
  margin-bottom: var(--td-space-2);
}

.td-rule-divider {
  border: 0;
  border-top: 1px solid var(--td-rule);
  margin: var(--td-space-8) 0;
}

/* ==========================================================================
   Layout Containers & Grids
   ========================================================================== */
.td-container {
  width: 100%;
  max-width: var(--td-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--td-gutter-desktop);
  padding-right: var(--td-gutter-desktop);
}

@media (max-width: 900px) {
  .td-container {
    padding-left: var(--td-gutter-tablet);
    padding-right: var(--td-gutter-tablet);
  }
}

@media (max-width: 600px) {
  .td-container {
    padding-left: var(--td-gutter-mobile);
    padding-right: var(--td-gutter-mobile);
  }
}

.td-section {
  padding-top: var(--td-section-gap-desktop);
  padding-bottom: var(--td-section-gap-desktop);
}

@media (max-width: 768px) {
  .td-section {
    padding-top: var(--td-section-gap-mobile);
    padding-bottom: var(--td-section-gap-mobile);
  }
}

.td-section-alt {
  background-color: var(--td-surface-alt);
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
.td-header {
  border-bottom: 1px solid var(--td-rule);
  background-color: var(--td-bg);
  position: static;
  width: 100%;
  z-index: 100;
}

.td-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 84px;
}

.td-wordmark {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  font-family: var(--td-font-sans);
  font-size: 22px;
  font-weight: 700;
  color: var(--td-text);
  letter-spacing: -0.02em;
  transition: opacity 0.2s ease;
}

.td-wordmark:hover {
  opacity: 0.85;
}

.td-logo-img {
  height: 38px;
  width: auto;
  max-width: 220px;
  object-fit: contain;
  display: block;
}

.td-logo-dark {
  display: none !important;
}

.td-nav-desktop {
  display: flex;
  align-items: center;
  gap: var(--td-space-6);
  list-style: none;
}

.td-nav-link {
  font-family: var(--td-font-sans);
  font-size: 14px;
  font-weight: 500;
  color: var(--td-text);
  text-decoration: none;
  padding: 6px 0;
  position: relative;
  display: inline-block;
  background: transparent;
  border: none;
  transition: transform 0.22s cubic-bezier(0.25, 1, 0.5, 1),
              color 0.2s ease,
              text-shadow 0.22s ease;
  will-change: transform;
}

/* Simple clean accent underline on hover */
.td-nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--td-accent-strong);
  transition: width 0.22s cubic-bezier(0.25, 1, 0.5, 1);
}

.td-nav-link:hover {
  color: var(--td-accent-strong);
  transform: translateY(-2px);
  text-shadow: 0 2px 4px rgba(61, 127, 125, 0.18);
}

.td-nav-link:hover::after {
  width: 100%;
}

.td-nav-link:active {
  transform: translateY(0.5px);
  transition-duration: 0.08s;
}

/* Active page nav link */
.td-nav-link.active {
  color: var(--td-accent-strong);
  font-weight: 600;
}

.td-nav-link.active::after {
  width: 100%;
}

.td-header-actions {
  display: flex;
  align-items: center;
  gap: var(--td-space-4);
}

/* Mobile Nav Toggle */
.td-mobile-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--td-control-border);
  color: var(--td-text);
  padding: 8px 14px;
  font-size: 14px;
  font-family: var(--td-font-sans);
  font-weight: 500;
  cursor: pointer;
  border-radius: var(--td-radius-button);
  transition: transform 0.2s ease, border-color 0.2s ease, color 0.2s ease, background-color 0.2s ease;
}

.td-mobile-toggle:hover {
  border-color: var(--td-accent-strong);
  color: var(--td-accent-strong);
  background-color: var(--td-theme-tint);
  transform: translateY(-1px);
}

@media (max-width: 900px) {
  .td-nav-desktop {
    display: none;
  }
  .td-mobile-toggle {
    display: inline-block;
  }
}

/* Mobile Drawer Overlay */
.td-mobile-drawer {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--td-bg);
  z-index: 1000;
  padding: var(--td-space-6);
  flex-direction: column;
}

.td-mobile-drawer.open {
  display: flex;
}

.td-mobile-drawer-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--td-space-7);
  padding-bottom: var(--td-space-4);
  border-bottom: 1px solid var(--td-rule);
}

.td-mobile-nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--td-space-5);
}

.td-mobile-nav-link {
  font-family: var(--td-font-sans);
  font-size: 24px;
  color: var(--td-text);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s ease;
}

.td-mobile-nav-link:hover,
.td-mobile-nav-link.active {
  color: var(--td-accent-strong);
}

/* ==========================================================================
   Buttons & Links
   ========================================================================== */
.td-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 26px;
  font-family: var(--td-font-sans);
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--td-radius-button);
  text-decoration: none;
  cursor: pointer;
  line-height: 1.4;
  text-align: center;
  transform-style: preserve-3d;
  perspective: 800px;
  backface-visibility: hidden;
  -webkit-font-smoothing: antialiased;
  transition: transform 0.24s cubic-bezier(0.25, 1, 0.5, 1),
              box-shadow 0.24s cubic-bezier(0.25, 1, 0.5, 1),
              background 0.25s ease,
              border-color 0.25s ease,
              color 0.2s ease;
  will-change: transform, box-shadow;
  overflow: hidden;
}

/* Light glare / sheen that dynamically sweeps across the 3D button */
.td-btn::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(
    circle 110px at var(--mouse-x, 50%) var(--mouse-y, 50%),
    rgba(255, 255, 255, 0.35) 0%,
    rgba(255, 255, 255, 0.08) 45%,
    transparent 80%
  );
  opacity: 0;
  pointer-events: none;
  mix-blend-mode: overlay;
  transition: opacity 0.25s ease;
}

.td-btn:hover::after {
  opacity: 1;
}

/* 3D Primary Button: Standard resting state (no pre-fill color), fills with Theme Gradient on hover */
.td-btn-primary {
  background-color: var(--td-surface);
  color: var(--td-text) !important;
  border: 1.5px solid var(--td-button);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05),
              inset 0 1px 0 rgba(255, 255, 255, 0.8);
}

.td-btn-primary:hover {
  background: var(--td-theme-gradient) !important;
  border-color: var(--td-accent-strong) !important;
  color: #FFFFFF !important;
  transform: translateY(-5px) rotateX(var(--tilt-x, 0deg)) rotateY(var(--tilt-y, 0deg)) translateZ(10px);
  box-shadow: 
    0 5px 0 var(--td-theme-shadow-3d),
    0 14px 28px -4px var(--td-theme-glow),
    0 4px 8px rgba(0, 0, 0, 0.16),
    inset 0 1px 1px rgba(255, 255, 255, 0.6),
    inset 0 -1px 2px rgba(0, 0, 0, 0.2);
}

.td-btn-primary:active {
  transform: translateY(2px) scale(0.985);
  box-shadow: 
    0 1px 0 var(--td-theme-shadow-3d),
    0 4px 10px var(--td-theme-glow),
    inset 0 2px 3px rgba(0, 0, 0, 0.25);
  transition-duration: 0.08s;
}

/* 3D Secondary Button: Standard resting state, fills with Theme Gradient & 3D extrusion on hover (matching Primary CTA) */
.td-btn-secondary {
  background-color: var(--td-surface);
  color: var(--td-text) !important;
  border: 1.5px solid var(--td-control-border);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05),
              inset 0 1px 0 rgba(255, 255, 255, 0.6);
}

.td-btn-secondary:hover {
  background: var(--td-theme-gradient) !important;
  border-color: var(--td-accent-strong) !important;
  color: #FFFFFF !important;
  transform: translateY(-5px) rotateX(var(--tilt-x, 0deg)) rotateY(var(--tilt-y, 0deg)) translateZ(10px);
  box-shadow: 
    0 5px 0 var(--td-theme-shadow-3d),
    0 14px 28px -4px var(--td-theme-glow),
    0 4px 8px rgba(0, 0, 0, 0.16),
    inset 0 1px 1px rgba(255, 255, 255, 0.6),
    inset 0 -1px 2px rgba(0, 0, 0, 0.2);
}

.td-btn-secondary:active {
  transform: translateY(2px) scale(0.985);
  box-shadow: 
    0 1px 0 var(--td-theme-shadow-3d),
    0 4px 10px var(--td-theme-glow),
    inset 0 2px 3px rgba(0, 0, 0, 0.25);
  transition-duration: 0.08s;
}

.td-btn-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--td-space-4);
  margin-top: var(--td-space-5);
}

.td-text-link {
  color: var(--td-accent-strong);
  text-decoration: underline;
  text-underline-offset: 4px;
  font-weight: 500;
}

.td-text-link:hover {
  color: var(--td-text);
}

/* ==========================================================================
   Hero Layouts & Imagery
   ========================================================================== */
.td-hero-section {
  padding-top: clamp(24px, 3.5vh, 48px);
  padding-bottom: clamp(24px, 3.5vh, 48px);
  min-height: calc(100vh - 84px);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.td-hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: var(--td-space-8);
  align-items: center;
}

@media (min-width: 901px) {
  .td-hero-section .td-hero-grid {
    align-items: center;
    gap: clamp(32px, 3.5vw, 56px);
  }

  .td-hero-section h1.td-hero-title {
    font-size: clamp(30px, 3.2vw, 46px);
    line-height: 1.14;
    letter-spacing: -0.025em;
    margin-bottom: clamp(12px, 1.6vh, 18px);
  }

  .td-hero-section p.td-lead {
    font-size: clamp(15px, 1.1vw, 17px);
    line-height: 1.5;
    margin-bottom: clamp(8px, 1.2vh, 14px);
  }

  .td-hero-section p {
    font-size: clamp(13px, 0.95vw, 15px);
    line-height: 1.5;
    margin-bottom: clamp(10px, 1.4vh, 16px);
  }

  .td-hero-section .td-btn-group {
    margin-top: clamp(14px, 2vh, 22px);
    gap: 12px;
  }

  .td-hero-section .td-btn {
    min-height: 42px;
    padding: 10px 20px;
    font-size: 13.5px;
  }

  .td-hero-section .td-portrait-frame {
    max-height: min(480px, 56vh);
    width: auto;
    aspect-ratio: 4 / 5;
    margin: 0 auto;
  }

  .td-hero-section .td-credibility-strip {
    margin-top: clamp(24px, 3vh, 40px);
    padding: clamp(12px, 1.5vh, 20px) 0;
  }

  .td-hero-section .td-credibility-label {
    font-size: clamp(18px, 1.6vw, 22px);
  }

  .td-hero-section .td-credibility-sub {
    font-size: 13px;
    line-height: 1.4;
  }
}

@media (max-width: 900px) {
  .td-hero-section {
    min-height: auto;
    padding-top: var(--td-space-6);
    padding-bottom: var(--td-space-6);
  }

  .td-hero-grid {
    grid-template-columns: 1fr;
    gap: var(--td-space-6);
  }
}

.td-portrait-frame {
  position: relative;
  background-color: var(--td-surface-alt);
  border: 1px solid var(--td-rule);
  border-radius: var(--td-radius-img);
  overflow: hidden;
  aspect-ratio: 4 / 5;
  width: 100%;
  max-width: 440px;
  margin: 0 auto;
}

.td-portrait-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Architectural Static 3D Artwork & Sculpture Frame */
.td-sculpture-frame,
[data-td-tilt] {
  position: relative;
  background-color: var(--td-bg);
  border: 1px solid var(--td-rule);
  border-radius: var(--td-radius-img);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  width: 100%;
}

.td-sculpture-frame img,
[data-td-tilt] > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.td-sculpture-caption {
  font-size: 13px;
  color: var(--td-muted);
  margin-top: var(--td-space-2);
  font-style: normal;
  font-family: var(--td-font-sans);
}

/* ==========================================================================
   Credibility Strip
   ========================================================================== */
.td-credibility-strip {
  border-top: 1px solid var(--td-rule);
  border-bottom: 1px solid var(--td-rule);
  padding: var(--td-space-5) 0;
  margin-top: var(--td-space-8);
}

.td-credibility-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--td-space-6);
}

@media (max-width: 900px) {
  .td-credibility-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--td-space-5);
  }
}

@media (max-width: 540px) {
  .td-credibility-grid {
    grid-template-columns: 1fr;
    gap: var(--td-space-4);
  }
}

.td-credibility-item {
  border-left: 2px solid var(--td-rule);
  padding: var(--td-space-2) var(--td-space-3) var(--td-space-2) var(--td-space-4);
  border-radius: var(--td-radius-card);
  transition: transform 0.25s cubic-bezier(0.25, 1, 0.5, 1),
              box-shadow 0.25s cubic-bezier(0.25, 1, 0.5, 1),
              background-color 0.25s ease,
              border-color 0.25s ease;
  will-change: transform, box-shadow;
}

.td-credibility-item:hover {
  transform: translateY(-3px);
  border-left-color: var(--td-accent);
  background-color: var(--td-theme-tint);
  box-shadow: 0 4px 14px -3px var(--td-theme-glow);
}

.td-credibility-item:first-child {
  border-left: none;
  padding-left: 0;
}

@media (max-width: 900px) {
  .td-credibility-item:nth-child(2n+1) {
    border-left: none;
    padding-left: 0;
  }
}

.td-credibility-label {
  font-family: var(--td-font-sans);
  font-size: 18px;
  font-weight: 600;
  color: var(--td-text);
  line-height: 1.3;
  margin-bottom: 4px;
}

.td-credibility-sub {
  font-size: 13px;
  color: var(--td-muted);
  line-height: 1.4;
  margin: 0;
}

/* ==========================================================================
   Editorial Cards & Grid Systems
   ========================================================================== */
.td-grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--td-space-6);
}

.td-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--td-space-6);
}

@media (max-width: 900px) {
  .td-grid-2,
  .td-grid-3 {
    grid-template-columns: 1fr;
    gap: var(--td-space-5);
  }
}

.td-card {
  background-color: var(--td-surface);
  border: 1px solid var(--td-rule);
  border-radius: var(--td-radius-card);
  padding: var(--td-space-6);
  display: flex;
  flex-direction: column;
  transition: transform 0.28s cubic-bezier(0.25, 1, 0.5, 1),
              box-shadow 0.28s cubic-bezier(0.25, 1, 0.5, 1),
              border-color 0.25s ease;
  will-change: transform, box-shadow;
}

.td-card:hover {
  transform: translateY(-5px);
  border-color: var(--td-accent);
  box-shadow: 
    0 6px 0 var(--td-theme-tint-shadow),
    0 16px 32px -8px var(--td-theme-glow),
    0 2px 6px rgba(0, 0, 0, 0.05);
}

.td-card-quiet {
  background-color: transparent;
  border: 1px solid var(--td-rule);
  border-radius: var(--td-radius-card);
  padding: var(--td-space-6);
  transition: transform 0.28s cubic-bezier(0.25, 1, 0.5, 1),
              box-shadow 0.28s cubic-bezier(0.25, 1, 0.5, 1),
              border-color 0.25s ease;
  will-change: transform, box-shadow;
}

.td-card-quiet:hover {
  transform: translateY(-4px);
  border-color: var(--td-accent);
  box-shadow: 
    0 4px 0 var(--td-theme-tint-shadow),
    0 12px 24px -6px var(--td-theme-glow);
}

.td-card-header {
  margin-bottom: var(--td-space-4);
}

.td-card-footer {
  margin-top: auto;
  padding-top: var(--td-space-4);
  border-top: 1px solid var(--td-rule);
}

/* Timeline Components */
.td-timeline {
  display: flex;
  flex-direction: column;
  gap: var(--td-space-6);
  position: relative;
  padding-left: var(--td-space-5);
  border-left: 2px solid var(--td-rule);
  margin: var(--td-space-6) 0;
}

.td-timeline-item {
  position: relative;
}

.td-timeline-item::before {
  content: '';
  position: absolute;
  left: calc(-1 * var(--td-space-5) - 5px);
  top: 6px;
  width: 9px;
  height: 9px;
  background-color: var(--td-button);
  border-radius: 1px;
}

.td-timeline-title {
  font-family: var(--td-font-sans);
  font-size: 20px;
  font-weight: 600;
  color: var(--td-text);
  margin-bottom: 4px;
}

.td-timeline-meta {
  font-size: 13px;
  font-weight: 600;
  color: var(--td-accent-strong);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--td-space-2);
}

/* ==========================================================================
   Article Layout (TD04 Single & Reading View)
   ========================================================================== */
.td-article-layout {
  max-width: var(--td-article-max-width);
  margin: 0 auto;
}

.td-article-header {
  margin-bottom: var(--td-space-7);
  padding-bottom: var(--td-space-6);
  border-bottom: 1px solid var(--td-rule);
}

.td-article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--td-space-4);
  align-items: center;
  font-size: 14px;
  color: var(--td-muted);
  margin-top: var(--td-space-3);
}

.td-article-body {
  font-size: 19px;
  line-height: 1.75;
  color: var(--td-text);
}

@media (max-width: 600px) {
  .td-article-body {
    font-size: 17px;
  }
}

.td-article-body p {
  margin-bottom: var(--td-space-5);
}

.td-article-body h2 {
  font-size: 28px;
  line-height: 1.25;
  margin-top: var(--td-space-7);
  margin-bottom: var(--td-space-4);
}

.td-article-body h3 {
  font-size: 22px;
  line-height: 1.3;
  margin-top: var(--td-space-6);
  margin-bottom: var(--td-space-3);
}

/* Newsreader applied sparingly only to editorial pull-quotes */
.td-pull-quote {
  font-family: var(--td-font-serif);
  font-size: 26px;
  line-height: 1.4;
  font-style: italic;
  color: var(--td-accent-strong);
  border-left: 3px solid var(--td-accent);
  padding-left: var(--td-space-5);
  margin: var(--td-space-7) 0;
}

.td-takeaways-box {
  background-color: var(--td-surface-alt);
  border: 1px solid var(--td-rule);
  padding: var(--td-space-6);
  margin: var(--td-space-7) 0;
  border-radius: var(--td-radius-card);
}

.td-takeaways-box h4 {
  font-family: var(--td-font-sans);
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--td-accent-strong);
  margin-bottom: var(--td-space-3);
}

.td-takeaways-box ul {
  list-style-type: square;
  padding-left: var(--td-space-5);
  color: var(--td-text);
}

.td-takeaways-box li {
  margin-bottom: var(--td-space-2);
}

/* Author byline card */
.td-author-card {
  display: flex;
  gap: var(--td-space-5);
  align-items: center;
  background-color: var(--td-surface);
  border: 1px solid var(--td-rule);
  padding: var(--td-space-5);
  margin-top: var(--td-space-8);
  border-radius: var(--td-radius-card);
}

.td-author-avatar {
  width: 72px;
  height: 72px;
  border-radius: 2px;
  object-fit: cover;
  flex-shrink: 0;
}

/* ==========================================================================
   Forms & Inputs (Let's Connect / Contact)
   ========================================================================== */
.td-form-group {
  margin-bottom: var(--td-space-5);
}

.td-form-label {
  display: block;
  font-family: var(--td-font-sans);
  font-size: 14px;
  font-weight: 600;
  color: var(--td-text);
  margin-bottom: var(--td-space-2);
}

.td-form-control {
  width: 100%;
  background-color: var(--td-surface);
  border: 1px solid var(--td-control-border);
  color: var(--td-text);
  font-family: var(--td-font-sans);
  font-size: 16px;
  padding: 12px 16px;
  border-radius: var(--td-radius-button);
}

.td-form-control:focus {
  outline: 2px solid var(--td-focus);
  outline-offset: 1px;
}

textarea.td-form-control {
  min-height: 140px;
  resize: vertical;
}

.td-form-checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: var(--td-space-3);
  font-size: 14px;
  color: var(--td-muted);
  cursor: pointer;
}

.td-form-checkbox-label input[type="checkbox"] {
  margin-top: 4px;
  width: 16px;
  height: 16px;
  accent-color: var(--td-button);
}

.td-form-alert {
  padding: 12px 16px;
  border-radius: var(--td-radius-button);
  margin-top: var(--td-space-4);
  font-size: 14px;
  display: none;
}

.td-form-alert.success {
  display: block;
  background-color: #EBF5F5;
  border: 1px solid var(--td-accent-strong);
  color: #1C3B3A;
}

.td-form-alert.error {
  display: block;
  background-color: #FDF0ED;
  border: 1px solid var(--td-error);
  color: #701D15;
}


/* ==========================================================================
   Filter Tabs (Insights & Media)
   ========================================================================== */
.td-filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--td-space-2);
  margin-bottom: var(--td-space-7);
  padding-bottom: var(--td-space-4);
  border-bottom: 1px solid var(--td-rule);
}

.td-filter-btn {
  background: transparent;
  border: 1px solid var(--td-control-border);
  color: var(--td-text);
  font-family: var(--td-font-sans);
  font-size: 13px;
  font-weight: 500;
  padding: 7px 16px;
  border-radius: var(--td-radius-button);
  cursor: pointer;
  transition: transform 0.22s cubic-bezier(0.25, 1, 0.5, 1),
              box-shadow 0.22s cubic-bezier(0.25, 1, 0.5, 1),
              border-color 0.2s ease,
              color 0.2s ease,
              background-color 0.2s ease;
  will-change: transform, box-shadow;
}

.td-filter-btn:hover {
  transform: translateY(-2px);
  border-color: var(--td-accent-strong);
  color: #FFFFFF !important;
  background: var(--td-theme-gradient) !important;
  box-shadow: 
    0 3px 0 var(--td-theme-shadow-3d),
    0 8px 16px -2px var(--td-theme-glow);
}

.td-filter-btn.active {
  background: var(--td-theme-gradient) !important;
  color: #FFFFFF !important;
  border-color: var(--td-accent-strong) !important;
  box-shadow: 
    0 3px 0 var(--td-theme-shadow-3d),
    0 8px 18px -2px var(--td-theme-glow);
}

.td-filter-btn:active {
  transform: translateY(1px);
  box-shadow: 0 1px 0 var(--td-theme-shadow-3d);
}

/* Source badge for external LinkedIn previews */
.td-badge-source {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  font-weight: 600;
  padding: 3px 8px;
  border: 1px solid var(--td-accent-strong);
  color: var(--td-accent-strong);
  border-radius: 2px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* Stats and Principles */
.td-stat-num {
  font-family: var(--td-font-sans);
  font-size: 40px;
  font-weight: 700;
  color: var(--td-accent-strong);
  line-height: 1.1;
  margin-bottom: var(--td-space-2);
}

.td-timeline-dot {
  border: 1px solid var(--td-accent-strong);
  color: var(--td-accent-strong);
}

.td-principle-number {
  font-family: var(--td-font-sans);
  font-size: 14px;
  font-weight: 600;
  color: var(--td-accent-strong);
  margin-bottom: var(--td-space-2);
}

/* ==========================================================================
   Footer
   ========================================================================== */
.td-footer {
  margin-top: auto;
  border-top: 1px solid var(--td-rule);
  background-color: var(--td-surface-alt);
  padding: var(--td-space-8) 0 var(--td-space-6);
  font-size: 14px;
}

.td-footer-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: var(--td-space-7);
  margin-bottom: var(--td-space-7);
}

@media (max-width: 768px) {
  .td-footer-top {
    grid-template-columns: 1fr;
    gap: var(--td-space-5);
  }
}

.td-footer-col h5 {
  font-family: var(--td-font-sans);
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--td-accent-strong);
  margin-bottom: var(--td-space-3);
}

.td-footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--td-space-2);
}

.td-footer-links a {
  color: var(--td-text);
  text-decoration: none;
}

.td-footer-links a:hover {
  color: var(--td-accent-strong);
  text-decoration: underline;
}

.td-footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--td-space-5);
  border-top: 1px solid var(--td-rule);
  color: var(--td-muted);
  font-size: 13px;
}