/* TRUST Protocol - Custom Theme
 * Dark-first design using only logo-derived colors:
 * Slate → Steel Blue → Bright Blue → Amber → Gold
 */

/* Material theme overrides - logo palette only */
:root,
[data-md-color-scheme="slate"] {
  --md-primary-fg-color: #4a7af7;
  --md-primary-fg-color--light: #5b8dc9;
  --md-primary-fg-color--dark: #2a5cb8;
  --md-accent-fg-color: #dba843;
  --md-accent-fg-color--transparent: #dba8431a;
}

/* Light mode overrides */
[data-md-color-scheme="default"] {
  --md-primary-fg-color: #3a6bd9;
  --md-primary-fg-color--light: #5b8dc9;
  --md-primary-fg-color--dark: #1e4a9e;
  --md-accent-fg-color: #c98b4a;
  --md-accent-fg-color--transparent: #c98b4a1a;
}

/* Dark background */
[data-md-color-scheme="slate"] {
  --md-default-bg-color: #1a1a2e;
  --md-default-bg-color--light: #1f1f3a;
}

/* Code blocks */
[data-md-color-scheme="slate"] .highlight code,
[data-md-color-scheme="slate"] .highlighttable,
[data-md-color-scheme="slate"] code {
  background-color: #16162a;
}

/* ========== BRANDED HEADER ========== */

.md-header {
  background: linear-gradient(180deg, #0e0e1c 0%, #12121f 100%);
  border-bottom: 1px solid transparent;
  border-image: linear-gradient(90deg,
    transparent 0%,
    #64748b33 15%,
    #5b8dc944 30%,
    #4a7af755 50%,
    #c98b4a44 70%,
    #dba84333 85%,
    transparent 100%
  ) 1;
  box-shadow: 0 1px 12px rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

/* Header logo (Five Rings mark) */
.md-header .md-logo img,
.md-header .md-logo svg {
  height: 1.6rem;
  width: auto;
}

/* Site name in header - brand typography */
.md-header__topic:first-child .md-ellipsis {
  font-weight: 300;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 0.85rem;
  color: #e2e8f4;
  opacity: 0.92;
}

/* Page title in header (scrolled state) */
.md-header__topic:last-child .md-ellipsis {
  font-weight: 400;
  letter-spacing: 0.02em;
  color: #7888a4;
}

/* Search bar */
[data-md-color-scheme="slate"] .md-search__input {
  background-color: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 6px;
  transition: border-color 0.2s, background-color 0.2s;
}

[data-md-color-scheme="slate"] .md-search__input:focus,
[data-md-color-scheme="slate"] .md-search__input:hover {
  background-color: rgba(255, 255, 255, 0.06);
  border-color: rgba(74, 122, 247, 0.3);
}

[data-md-color-scheme="slate"] .md-search__input::placeholder {
  color: rgba(255, 255, 255, 0.3);
}

/* Header icon buttons (theme toggle, search, menu) */
.md-header__button.md-icon {
  color: rgba(255, 255, 255, 0.5);
  transition: color 0.2s;
}

.md-header__button.md-icon:hover {
  color: rgba(255, 255, 255, 0.85);
}

/* GitHub source in header */
.md-header__source {
  opacity: 0.7;
  transition: opacity 0.2s;
}

.md-header__source:hover {
  opacity: 1;
}

/* Header on landing page - transparent overlay */
body:has(.tp-hero) .md-header {
  background: linear-gradient(180deg, rgba(6, 10, 20, 0.85) 0%, rgba(6, 10, 20, 0.4) 100%);
  border-image: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  box-shadow: none;
}

body:has(.tp-hero) .md-header[data-md-state="shadow"] {
  background: linear-gradient(180deg, #0e0e1c 0%, #12121f 100%);
  border-image: linear-gradient(90deg,
    transparent 0%,
    #64748b33 15%,
    #5b8dc944 30%,
    #4a7af755 50%,
    #c98b4a44 70%,
    #dba84333 85%,
    transparent 100%
  ) 1;
  box-shadow: 0 1px 12px rgba(0, 0, 0, 0.4);
}

/* ========== SIDEBAR ========== */

[data-md-color-scheme="slate"] .md-sidebar {
  background-color: #14142a;
}

[data-md-color-scheme="slate"] .md-nav__link--active {
  color: var(--md-accent-fg-color);
  font-weight: 600;
}

[data-md-color-scheme="slate"] .md-nav__item--nested > .md-nav__link {
  color: rgba(255, 255, 255, 0.7);
}

/* Section labels in sidebar */
[data-md-color-scheme="slate"] .md-nav--lifted > .md-nav__list > .md-nav__item--active > .md-nav__link {
  color: var(--md-accent-fg-color);
}

/* Admonition (callout) styling */
[data-md-color-scheme="slate"] .admonition {
  border-left-color: var(--md-accent-fg-color);
}

/* Table header rows */
[data-md-color-scheme="slate"] .md-typeset table:not([class]) th {
  background-color: rgba(74, 122, 247, 0.12);
}

/* Links - Steel Blue with Bright Blue hover */
[data-md-color-scheme="slate"] .md-typeset a {
  color: #5b8dc9;
}

[data-md-color-scheme="slate"] .md-typeset a:hover {
  color: #4a7af7;
}

/* ========== BRANDED FOOTER ========== */

[data-md-color-scheme="slate"] .md-footer {
  background: linear-gradient(180deg, #12121f 0%, #0a0a18 100%);
  border-top: 1px solid transparent;
  border-image: linear-gradient(90deg,
    transparent 0%,
    #64748b22 20%,
    #4a7af733 50%,
    #dba84322 80%,
    transparent 100%
  ) 1;
}

[data-md-color-scheme="slate"] .md-footer-meta {
  background: rgba(0, 0, 0, 0.2);
}

[data-md-color-scheme="slate"] .md-footer__link {
  transition: opacity 0.2s;
}

[data-md-color-scheme="slate"] .md-footer__link:hover {
  opacity: 0.8;
}

/* ================================================================
   TRUST Protocol Landing Page
   All classes prefixed .tp- to avoid collision with Material theme
   Colors derived exclusively from the Five Rings logo.
   ================================================================ */

:root {
  /* Tier colors (from the logo rings) */
  --tp-novice: #64748b;
  --tp-companion: #5b8dc9;
  --tp-partner: #4a7af7;
  --tp-guardian: #c98b4a;
  --tp-sacred: #dba843;

  /* Accent golds (from the fingerprint/eye element) */
  --tp-gold-bright: #f5d86a;
  --tp-gold-warm: #f0cc50;
  --tp-gold-soft: #e8c040;

  /* Backgrounds (from the logo background gradient) */
  --tp-bg-deep: #060a14;
  --tp-bg-dark: #111827;
  --tp-bg-ink: #0a0f1e;
  --tp-bg-charcoal: #1a1a2e;
  --tp-bg-sidebar: #14142a;
  --tp-bg-header: #12121f;

  /* Text */
  --tp-text-primary: #e2e8f4;
  --tp-text-muted: #7888a4;
  --tp-text-link: #5b8dc9;

  /* UI (derived from logo) */
  --tp-ui-primary: #4a7af7;
  --tp-ui-accent: #dba843;

  /* Animation */
  --tp-ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

/* --- Hide empty main element on landing page --- */
body:has(.tp-hero) .md-main {
  display: none;
}

body:has(.tp-hero) .md-footer {
  border-top: 1px solid rgba(74, 122, 247, 0.08);
}

/* ========== HERO ========== */

.tp-hero {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 6rem 2rem 4rem;
  overflow: hidden;
}

.tp-hero__bg {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 60% at 50% 40%, #111827 0%, #060a14 100%);
  z-index: 0;
}

.tp-hero__bg::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -60%);
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(74, 122, 247, 0.04) 0%, transparent 70%);
  pointer-events: none;
}

.tp-hero__content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  max-width: 48rem;
}

.tp-hero__logo {
  width: 280px;
  height: auto;
  margin-bottom: 2.5rem;
}

.tp-hero__logo svg,
.tp-logo {
  width: 100%;
  height: auto;
  display: block;
}

.tp-hero__title {
  font-family: 'Helvetica Neue', 'Liberation Sans', 'DejaVu Sans', Arial, sans-serif;
  font-weight: 300;
  font-size: clamp(2.5rem, 5vw, 4rem);
  letter-spacing: 0.3em;
  color: var(--tp-text-primary);
  opacity: 0.92;
  margin: 0 0 0.75rem;
  text-transform: uppercase;
}

.tp-hero__subtitle {
  font-weight: 300;
  font-size: clamp(0.85rem, 1.8vw, 1.1rem);
  letter-spacing: 0.15em;
  color: var(--tp-text-muted);
  margin: 0 0 1.5rem;
  text-transform: uppercase;
}

.tp-hero__tagline {
  font-size: clamp(1.1rem, 2.5vw, 1.4rem);
  color: var(--tp-gold-warm);
  font-weight: 400;
  margin: 0 0 2.5rem;
  opacity: 0.9;
}

.tp-hero__tagline strong {
  color: var(--tp-gold-bright);
  font-weight: 600;
}

.tp-hero__install {
  margin: 0 0 2rem;
}

.tp-hero__install-cmd {
  display: inline-block;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 6px;
  padding: 0.6rem 1.2rem;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, Courier, monospace;
  font-size: clamp(0.8rem, 1.8vw, 0.95rem);
  color: #e2e8f0;
  letter-spacing: 0.01em;
  user-select: all;
  cursor: text;
}

.tp-hero__actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: center;
}

/* ========== BUTTONS ========== */

.tp-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 2rem;
  border-radius: 6px;
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-decoration: none;
  transition: all 0.25s var(--tp-ease-out);
  cursor: pointer;
  border: 1px solid transparent;
  line-height: 1.4;
}

.tp-btn--primary {
  background: var(--tp-ui-primary);
  color: #fff;
  border-color: var(--tp-ui-primary);
}

.tp-btn--primary:hover {
  background: #5b8af8;
  border-color: #5b8af8;
  box-shadow: 0 0 24px rgba(74, 122, 247, 0.3);
  color: #fff;
  transform: translateY(-1px);
}

.tp-btn--ghost {
  background: transparent;
  color: var(--tp-text-primary);
  border-color: rgba(255, 255, 255, 0.2);
}

.tp-btn--ghost:hover {
  border-color: rgba(255, 255, 255, 0.4);
  background: rgba(255, 255, 255, 0.05);
  color: #fff;
}

.tp-btn__icon {
  width: 18px;
  height: 18px;
}

/* ========== SECTIONS ========== */

.tp-section {
  position: relative;
  width: 100%;
  padding: 6rem 2rem;
  box-sizing: border-box;
}

.tp-section__inner {
  max-width: 72rem;
  margin: 0 auto;
}

.tp-section__inner--narrow {
  max-width: 48rem;
}

.tp-section__title {
  font-weight: 300;
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  letter-spacing: 0.08em;
  color: var(--tp-text-primary);
  text-align: center;
  margin: 0 0 1rem;
}

.tp-section__lead {
  font-size: 1.1rem;
  color: var(--tp-text-muted);
  text-align: center;
  max-width: 40rem;
  margin: 0 auto 3rem;
  line-height: 1.7;
}

/* Alternating backgrounds */
.tp-section--problem { background: var(--tp-bg-deep); }
.tp-section--features { background: var(--tp-bg-ink); }
.tp-section--tiers { background: var(--tp-bg-deep); }
.tp-section--flow { background: var(--tp-bg-ink); }
.tp-section--quickstart { background: var(--tp-bg-deep); }
.tp-section--philosophy { background: var(--tp-bg-ink); }
.tp-section--landing-footer {
  background: var(--tp-bg-header);
  padding: 3rem 2rem;
}

/* ========== GRID & CARDS ========== */

.tp-grid {
  display: grid;
  gap: 1.5rem;
}

.tp-grid--3 {
  grid-template-columns: repeat(3, 1fr);
}

.tp-card {
  position: relative;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 12px;
  padding: 2rem;
  transition: all 0.3s var(--tp-ease-out);
}

.tp-card:hover {
  border-color: rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.04);
  transform: translateY(-2px);
}

.tp-card--problem:hover {
  box-shadow: 0 0 30px rgba(219, 168, 67, 0.06);
}

.tp-card--feature {
  border-left: 3px solid var(--tp-accent, var(--tp-ui-primary));
}

.tp-card--feature:hover {
  box-shadow: 0 0 30px rgba(74, 122, 247, 0.08);
}

.tp-card__icon {
  margin-bottom: 1rem;
  color: var(--tp-text-muted);
  opacity: 0.85;
}

.tp-card__title {
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--tp-text-primary);
  margin: 0 0 0.5rem;
}

.tp-card__text {
  font-size: 0.9rem;
  color: var(--tp-text-muted);
  line-height: 1.6;
  margin: 0;
}

/* ========== TRUST TIERS ========== */

.tp-tiers {
  display: flex;
  gap: 0;
  align-items: stretch;
}

.tp-tier {
  flex: 1;
  min-width: 0;
  padding: 2rem 1.25rem;
  text-align: center;
  position: relative;
  border-top: 3px solid var(--tp-tier-color);
  background: rgba(255, 255, 255, 0.02);
  transition: background 0.3s;
}

.tp-tier:hover {
  background: rgba(255, 255, 255, 0.04);
}

.tp-tier + .tp-tier::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 1px;
  background: rgba(255, 255, 255, 0.06);
}

.tp-tier:first-child {
  border-radius: 8px 0 0 8px;
}

.tp-tier:last-child {
  border-radius: 0 8px 8px 0;
}

.tp-tier__arc {
  width: 56px;
  height: 56px;
  margin: 0 auto 1rem;
  border-radius: 50%;
  background:
    conic-gradient(from 189deg, var(--tp-tier-color) 0%, var(--tp-tier-color) var(--tp-tier-pct), transparent var(--tp-tier-pct))
    border-box;
  -webkit-mask:
    radial-gradient(farthest-side, transparent calc(100% - 3px), #fff calc(100% - 3px));
  mask:
    radial-gradient(farthest-side, transparent calc(100% - 3px), #fff calc(100% - 3px));
}

.tp-tier__name {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--tp-tier-color);
  margin: 0 0 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.tp-tier__stats {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  font-size: 0.78rem;
  color: var(--tp-text-muted);
  margin-bottom: 0.75rem;
}

.tp-tier__desc {
  font-size: 0.82rem;
  color: var(--tp-text-muted);
  margin: 0;
  line-height: 1.5;
  font-style: italic;
  opacity: 0.8;
}

/* ========== HOW IT WORKS FLOW ========== */

.tp-flow {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 0;
  max-width: 60rem;
  margin: 0 auto;
}

.tp-flow__step {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  flex: 1;
  max-width: 200px;
  padding: 1rem;
}

.tp-flow__circle {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 2px solid var(--tp-step-color, var(--tp-ui-primary));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--tp-step-color, var(--tp-ui-primary));
  margin-bottom: 1rem;
  background: rgba(74, 122, 247, 0.06);
  flex-shrink: 0;
}

.tp-flow__step p {
  font-size: 0.9rem;
  color: var(--tp-text-muted);
  line-height: 1.5;
  margin: 0;
}

.tp-flow__step code {
  background: var(--tp-bg-charcoal);
  padding: 0.15em 0.4em;
  border-radius: 3px;
  font-size: 0.85em;
  color: var(--tp-gold-warm);
}

.tp-flow__arrow {
  width: 40px;
  height: 2px;
  background: linear-gradient(90deg, rgba(74, 122, 247, 0.6), rgba(74, 122, 247, 0.1));
  position: relative;
  flex-shrink: 0;
  margin-top: 23px;
}

.tp-flow__arrow::after {
  content: '';
  position: absolute;
  right: -1px;
  top: -4px;
  border: 5px solid transparent;
  border-left: 6px solid rgba(74, 122, 247, 0.6);
}

/* ========== QUICK START ========== */

.tp-section--quickstart {
  text-align: center;
}

.tp-code {
  background: var(--tp-bg-sidebar);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 8px;
  padding: 1.5rem 2rem;
  margin: 0 0 2rem;
  overflow-x: auto;
  text-align: left;
}

.tp-code pre {
  margin: 0;
  background: transparent !important;
}

.tp-code code {
  font-family: 'Roboto Mono', 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--tp-text-primary);
  background: transparent !important;
}

.tp-code__comment {
  color: #546e7a;
}

/* ========== PHILOSOPHY ========== */

.tp-quote {
  border: none;
  padding: 0;
  margin: 0 auto 2rem;
  text-align: center;
  background: none;
}

.tp-quote p {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 300;
  font-style: italic;
  color: var(--tp-gold-warm);
  letter-spacing: 0.03em;
  margin: 0;
  line-height: 1.4;
}

.tp-philosophy__text {
  font-size: 1.05rem;
  color: var(--tp-text-muted);
  text-align: center;
  line-height: 1.8;
  max-width: 38rem;
  margin: 0 auto;
}

/* ========== LANDING FOOTER ========== */

.tp-landing-footer {
  text-align: center;
}

.tp-landing-footer__links {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.tp-landing-footer__links a {
  color: var(--tp-text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s;
}

.tp-landing-footer__links a:hover {
  color: var(--tp-text-link);
}

.tp-landing-footer__credit {
  font-size: 0.85rem;
  color: var(--tp-text-muted);
  margin: 0;
}

.tp-landing-footer__credit a {
  color: var(--tp-text-link);
  text-decoration: none;
}

/* ========== RESPONSIVE ========== */

@media (max-width: 960px) {
  .tp-grid--3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .tp-tiers {
    flex-direction: column;
  }

  .tp-tier {
    border-top: none;
    border-left: 3px solid var(--tp-tier-color);
    text-align: left;
    display: flex;
    gap: 1.25rem;
    align-items: center;
    padding: 1.25rem 1.5rem;
  }

  .tp-tier:first-child {
    border-radius: 8px 8px 0 0;
  }

  .tp-tier:last-child {
    border-radius: 0 0 8px 8px;
  }

  .tp-tier__arc {
    margin: 0;
    flex-shrink: 0;
    width: 48px;
    height: 48px;
  }

  .tp-tier__body {
    flex: 1;
    min-width: 0;
  }

  .tp-tier__stats {
    flex-direction: row;
    gap: 0.75rem;
    flex-wrap: wrap;
  }

  .tp-tier + .tp-tier::before {
    left: 0;
    top: 0;
    bottom: auto;
    width: 100%;
    height: 1px;
  }

  .tp-flow {
    flex-direction: column;
    align-items: center;
  }

  .tp-flow__step {
    max-width: 280px;
  }

  .tp-flow__arrow {
    width: 2px;
    height: 30px;
    margin-top: 0;
    background: linear-gradient(180deg, rgba(74, 122, 247, 0.6), rgba(74, 122, 247, 0.1));
  }

  .tp-flow__arrow::after {
    right: auto;
    top: auto;
    bottom: -1px;
    left: -4px;
    border: 5px solid transparent;
    border-top: 6px solid rgba(74, 122, 247, 0.6);
    border-left: 5px solid transparent;
  }
}

@media (max-width: 600px) {
  .tp-grid--3 {
    grid-template-columns: 1fr;
  }

  .tp-section {
    padding: 4rem 1.25rem;
  }

  .tp-hero {
    min-height: 90vh;
    padding: 5rem 1.25rem 3rem;
  }

  .tp-hero__logo {
    width: 200px;
  }

  .tp-hero__title {
    letter-spacing: 0.2em;
  }

  .tp-code {
    padding: 1rem 1.25rem;
  }

  .tp-landing-footer__links {
    gap: 1rem;
  }
}

/* ========== REDUCED MOTION ========== */

@media (prefers-reduced-motion: reduce) {
  .tp-ring {
    stroke-dasharray: none !important;
    stroke-dashoffset: 0 !important;
    transition: none !important;
  }

  .tp-fingerprint {
    opacity: 0.9 !important;
    transition: none !important;
  }

  .tp-section {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }

  .tp-card,
  .tp-btn,
  .tp-tier {
    transition: none !important;
  }
}