/*
 * Architecture page — documentação viva visual.
 * Reaproveita o design system (vars, badges, cards) e adiciona
 * componentes específicos: hero animado, diagrama, stepper, timeline.
 */

/* ============================================================
   HERO
   ============================================================ */
.arch-hero {
  position: relative;
  margin: calc(-1 * var(--space-xl)) calc(-1 * var(--space-2xl)) var(--space-2xl);
  padding: var(--space-2xl) var(--space-2xl) var(--space-2xl);
  overflow: hidden;
  border-bottom: 1px solid var(--color-border);
  background: linear-gradient(180deg, #0a0a18 0%, var(--color-bg) 100%);
}

.arch-hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.arch-hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(124, 58, 237, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(124, 58, 237, 0.06) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at center, #000 30%, transparent 70%);
}

.arch-hero__orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.45;
  animation: archOrb 18s ease-in-out infinite alternate;
}
.arch-hero__orb--1 {
  width: 380px; height: 380px;
  background: radial-gradient(circle, #7C3AED 0%, transparent 70%);
  top: -120px; left: -80px;
}
.arch-hero__orb--2 {
  width: 460px; height: 460px;
  background: radial-gradient(circle, #22D3EE 0%, transparent 70%);
  bottom: -200px; right: -100px;
  animation-delay: -9s;
}

@keyframes archOrb {
  0%   { transform: translate(0, 0) scale(1); }
  50%  { transform: translate(40px, 30px) scale(1.15); }
  100% { transform: translate(-30px, -20px) scale(0.95); }
}

.arch-hero__content {
  position: relative;
  z-index: 1;
}

.arch-hero__eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: var(--color-text-faded);
  text-transform: uppercase;
  margin-bottom: var(--space-md);
  display: flex;
  align-items: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.arch-live-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.2), rgba(34, 211, 238, 0.2));
  border: 1px solid rgba(34, 211, 238, 0.4);
  color: #22D3EE;
  text-decoration: none;
  letter-spacing: 0.08em;
  transition: all 200ms ease;
  animation: archLiveCtaPulse 2.4s ease-in-out infinite;
}
.arch-live-cta:hover {
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.35), rgba(34, 211, 238, 0.35));
  border-color: #22D3EE;
  color: #fff;
  transform: translateY(-1px);
}
@keyframes archLiveCtaPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(34, 211, 238, 0.4); }
  50%      { box-shadow: 0 0 0 8px rgba(34, 211, 238, 0); }
}

.arch-hero__title {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3.4rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.05;
}

.arch-hero__sep {
  margin: 0 var(--space-sm);
  color: var(--color-text-faded);
  font-weight: 300;
}

.arch-hero__lead {
  margin: var(--space-md) 0 var(--space-xl);
  max-width: 720px;
  color: var(--color-text-muted);
  font-size: 1.05rem;
  line-height: 1.6;
}

.arch-hero__stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.arch-stat {
  padding: var(--space-md) var(--space-lg);
  background: rgba(13, 13, 26, 0.6);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(8px);
  transition: all var(--transition-fast);
  animation: archFadeUp 600ms ease backwards;
}
.arch-stat:nth-child(1) { animation-delay: 0ms; }
.arch-stat:nth-child(2) { animation-delay: 60ms; }
.arch-stat:nth-child(3) { animation-delay: 120ms; }
.arch-stat:nth-child(4) { animation-delay: 180ms; }
.arch-stat:nth-child(5) { animation-delay: 240ms; }
.arch-stat:nth-child(6) { animation-delay: 300ms; }

.arch-stat:hover {
  border-color: var(--color-border-strong);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(124, 58, 237, 0.15);
}

.arch-stat__label {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-faded);
  margin-bottom: var(--space-xs);
}

.arch-stat__value {
  font-size: 1.7rem;
  font-weight: 700;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  background: linear-gradient(135deg, var(--color-text), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.arch-stat__value--breaker { font-size: 1rem; -webkit-text-fill-color: initial; background: none; }

.arch-stat__sub {
  margin-top: var(--space-xs);
  font-size: 0.78rem;
  color: var(--color-text-faded);
}

.arch-hero__pills {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.arch-pill {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 4px var(--space-md);
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--color-border);
  font-size: 0.82rem;
  color: var(--color-text-muted);
  transition: all var(--transition-fast);
}
.arch-pill:hover { border-color: var(--color-border-strong); color: var(--color-text); }
.arch-pill--warn { border-color: rgba(245, 158, 11, 0.4); color: #fcd34d; }
.arch-pill--mono { font-family: var(--font-mono); font-size: 0.78rem; }

@keyframes archFadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ============================================================
   SECTION + REVEAL ON SCROLL
   ============================================================ */
.arch-section {
  margin: var(--space-2xl) 0;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 600ms ease, transform 600ms ease;
}
.arch-section.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.arch-section__head {
  margin-bottom: var(--space-lg);
}
.arch-section__title {
  margin: 0;
  font-size: 1.4rem;
  font-weight: 700;
}
.arch-section__sub {
  margin: var(--space-xs) 0 0 0;
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

/* ============================================================
   DIAGRAMA DA ARQUITETURA
   ============================================================ */
.arch-diagram {
  position: relative;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  overflow: hidden;
}

.arch-diagram__grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  grid-template-rows: repeat(4, auto);
  gap: var(--space-md) var(--space-lg);
  position: relative;
  z-index: 2;
}

.arch-node {
  position: relative;
  padding: var(--space-md);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  cursor: default;
  text-align: left;
}
.arch-node:hover, .arch-node:focus {
  outline: none;
  border-color: var(--color-border-strong);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(124, 58, 237, 0.2);
}

.arch-node__dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--node-color);
  box-shadow: 0 0 12px var(--node-color);
  margin-bottom: var(--space-xs);
  animation: archPulse 2s ease-in-out infinite;
}

.arch-node__label {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-text);
}

.arch-node__sub {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  margin-top: 2px;
}

@keyframes archPulse {
  0%, 100% { box-shadow: 0 0 8px var(--node-color); }
  50%      { box-shadow: 0 0 20px var(--node-color), 0 0 30px var(--node-color); }
}

/* Linhas de fluxo SVG */
.arch-diagram__flows {
  position: absolute;
  inset: var(--space-xl);
  width: calc(100% - var(--space-xl) * 2);
  height: calc(100% - var(--space-xl) * 2);
  z-index: 1;
  pointer-events: none;
}

.arch-flow {
  fill: none;
  stroke-width: 0.3;
  stroke-linecap: round;
  stroke-dasharray: 2 2;
  opacity: 0.4;
  animation: archDash 3s linear infinite;
}
.arch-flow--blue   { stroke: #22D3EE; }
.arch-flow--purple { stroke: #7C3AED; }
.arch-flow--green  { stroke: #10B981; }
.arch-flow--cyan   { stroke: #67e8f9; }

@keyframes archDash {
  to { stroke-dashoffset: -20; }
}

.arch-legend {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  margin-top: var(--space-md);
  padding: var(--space-md);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 0.82rem;
  color: var(--color-text-muted);
}
.arch-legend__item { display: inline-flex; align-items: center; gap: var(--space-xs); }
.arch-legend__swatch {
  width: 12px; height: 12px;
  border-radius: 3px;
  display: inline-block;
}

/* ============================================================
   PROJETOS
   ============================================================ */
.arch-project { transition: all var(--transition-fast); }
.arch-project:hover {
  border-color: var(--color-border-strong);
  transform: translateY(-2px);
}
.arch-project__slug {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--color-text-faded);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.arch-project__name {
  margin: var(--space-sm) 0 var(--space-xs);
  font-size: 1.1rem;
  font-weight: 600;
}
.arch-project__desc {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  min-height: 2.7em;
  margin: 0;
}
.arch-project__meta {
  margin-top: var(--space-md);
  font-size: 0.78rem;
  color: var(--color-text-faded);
}
.arch-project__link {
  display: inline-block;
  margin-top: var(--space-sm);
  font-size: 0.82rem;
  color: var(--color-accent);
}
.arch-project__link:hover { color: var(--color-text); }

/* ============================================================
   INFRA
   ============================================================ */
.arch-infra { display: flex; flex-direction: column; gap: var(--space-xl); }
.arch-infra__group { display: flex; flex-direction: column; }
.arch-infra__card { transition: all var(--transition-fast); }
.arch-infra__card:hover { border-color: var(--color-border-strong); transform: translateY(-2px); }
.arch-infra__role { margin: var(--space-sm) 0 var(--space-xs); color: var(--color-text-muted); font-size: 0.9rem; }
.arch-infra__url {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--color-accent);
  word-break: break-all;
}
.arch-infra__url:hover { color: var(--color-text); }
.arch-infra__meta { font-size: 0.78rem; color: var(--color-text-faded); margin-top: var(--space-xs); }
.arch-infra__ip {
  display: inline-block;
  margin-top: var(--space-sm);
  padding: 2px var(--space-sm);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--color-text-muted);
}
.arch-infra__domains { display: flex; flex-wrap: wrap; gap: var(--space-sm); }

/* ============================================================
   FLUXOS / STEPPER
   ============================================================ */
.arch-flow-card {
  margin-bottom: var(--space-xl);
  padding: var(--space-xl);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  border-left: 4px solid var(--color-primary);
}
.arch-flow-card--blue   { border-left-color: #22D3EE; }
.arch-flow-card--purple { border-left-color: #7C3AED; }
.arch-flow-card--green  { border-left-color: #10B981; }

.arch-flow-card__head { margin-bottom: var(--space-lg); }
.arch-flow-card__title { margin: 0; font-size: 1.2rem; font-weight: 700; }
.arch-flow-card__sub { margin: var(--space-xs) 0 0 0; color: var(--color-text-muted); font-size: 0.92rem; }

.arch-stepper {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-md);
  counter-reset: arch-step;
}

.arch-stepper__step {
  position: relative;
  padding: var(--space-md);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  animation: archFadeUp 600ms ease backwards;
  animation-delay: var(--step-delay, 0ms);
  transition: all var(--transition-fast);
}
.arch-stepper__step:hover {
  border-color: var(--color-border-strong);
  transform: translateY(-2px);
}

.arch-stepper__icon {
  font-size: 1.4rem;
  width: 40px; height: 40px;
  display: grid;
  place-items: center;
  background: rgba(124, 58, 237, 0.1);
  border: 1px solid rgba(124, 58, 237, 0.3);
  border-radius: var(--radius-md);
}

.arch-stepper__body { display: flex; flex-direction: column; gap: 2px; }
.arch-stepper__num {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-faded);
}
.arch-stepper__title { font-weight: 600; font-size: 0.95rem; }
.arch-stepper__desc { color: var(--color-text-muted); font-size: 0.85rem; line-height: 1.5; }

/* ============================================================
   STACK
   ============================================================ */
.arch-tech { transition: all var(--transition-fast); }
.arch-tech:hover { border-color: var(--color-border-strong); transform: translateY(-2px); }
.arch-tech__role { margin: var(--space-sm) 0; color: var(--color-text-muted); font-size: 0.88rem; }
.arch-tech__version {
  display: inline-block;
  padding: 2px var(--space-sm);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--color-text-muted);
}

/* ============================================================
   TIMELINE
   ============================================================ */
.arch-timeline {
  position: relative;
  padding-left: var(--space-xl);
}
.arch-timeline::before {
  content: "";
  position: absolute;
  left: 12px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, #7C3AED, #22D3EE, transparent);
}

.arch-timeline__entry {
  position: relative;
  padding: var(--space-md) 0 var(--space-md) var(--space-lg);
}

.arch-timeline__dot {
  position: absolute;
  left: -22px;
  top: var(--space-md);
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--color-bg);
  border: 2px solid var(--color-accent);
  box-shadow: 0 0 12px rgba(34, 211, 238, 0.6);
}

.arch-timeline__date {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--color-text-faded);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.arch-timeline__title {
  margin: var(--space-xs) 0;
  font-size: 1.02rem;
  font-weight: 600;
}
.arch-timeline__desc {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.9rem;
  line-height: 1.55;
}

/* ============================================================
   DOCS ACCORDION
   ============================================================ */
.arch-doc {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition-fast);
}
.arch-doc[open] { border-color: var(--color-border-strong); }

.arch-doc__summary {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  cursor: pointer;
  list-style: none;
  font-weight: 500;
}
.arch-doc__summary::-webkit-details-marker { display: none; }

.arch-doc__caret {
  display: inline-block;
  font-size: 1.2rem;
  color: var(--color-text-faded);
  transition: transform var(--transition-fast);
}
.arch-doc[open] .arch-doc__caret { transform: rotate(90deg); color: var(--color-accent); }

.arch-doc__title { flex: 1; color: var(--color-text); }
.arch-doc__meta { font-size: 0.78rem; color: var(--color-text-faded); }
.arch-doc__meta code {
  font-family: var(--font-mono);
  color: var(--color-text-muted);
}

.arch-doc__content {
  padding: 0 var(--space-lg) var(--space-lg);
  border-top: 1px solid var(--color-border);
  color: var(--color-text-muted);
  font-size: 0.92rem;
  line-height: 1.65;
  max-height: 600px;
  overflow-y: auto;
}

.arch-doc__h {
  color: var(--color-text);
  margin: var(--space-lg) 0 var(--space-sm);
  font-weight: 700;
}
.arch-doc__h:first-child { margin-top: var(--space-md); }
h1.arch-doc__h { font-size: 1.4rem; }
h2.arch-doc__h { font-size: 1.2rem; }
h3.arch-doc__h { font-size: 1.05rem; }
h4.arch-doc__h, h5.arch-doc__h, h6.arch-doc__h { font-size: 0.95rem; }

.arch-doc__hr { border: none; border-top: 1px solid var(--color-border); margin: var(--space-md) 0; }
.arch-doc__quote {
  border-left: 3px solid var(--color-purple);
  padding: 4px var(--space-md);
  margin: var(--space-sm) 0;
  background: rgba(124, 58, 237, 0.05);
  font-style: italic;
  color: var(--color-text);
}
.arch-doc__code {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  margin: var(--space-sm) 0;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  overflow-x: auto;
  color: var(--color-text);
}
.arch-doc__inline {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 1px 6px;
  font-family: var(--font-mono);
  font-size: 0.85em;
  color: var(--color-accent);
}
.arch-doc__list {
  margin: var(--space-sm) 0;
  padding-left: var(--space-lg);
}
.arch-doc__list li { margin-bottom: var(--space-xs); }

/* ============================================================
   FOOTER
   ============================================================ */
.arch-footer {
  margin-top: var(--space-2xl);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border);
  text-align: center;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px) {
  .arch-hero {
    margin: calc(-1 * var(--space-xl)) calc(-1 * var(--space-lg)) var(--space-xl);
    padding: var(--space-xl) var(--space-lg);
  }
  .arch-diagram__grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .arch-diagram__flows { display: none; }
  .arch-node {
    grid-column: auto !important;
    grid-row: auto !important;
  }
  .arch-stepper {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  .arch-hero__title { font-size: 1.8rem; }
  .arch-hero__stats { grid-template-columns: 1fr 1fr; }
  .arch-flow-card { padding: var(--space-lg); }
  .arch-timeline { padding-left: var(--space-lg); }
  .arch-timeline__dot { left: -18px; }
}

@media (prefers-reduced-motion: reduce) {
  .arch-hero__orb,
  .arch-node__dot,
  .arch-flow {
    animation: none !important;
  }
}