/* Silver Context — pages.css
   Page-specific layouts, on top of system.css. */

/* ————————————————————————————————————— */
/* Page head (animated)                      */
/* ————————————————————————————————————— */

.hero {
  position: relative;
  min-height: 100vh;
  padding-top: 64px;   /* nav */
  display: flex;
  align-items: center;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
}
.hero-canvas {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  z-index: 0;
}
.hero-content {
  position: relative;
  z-index: 1;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 48px;
  width: 100%;
}
.hero-inner { max-width: 600px; }
.hero-name {
  position: absolute;
  top: 92px; right: 48px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--text-tertiary);
}
.hero-scroll {
  position: absolute;
  bottom: 36px; left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--text-tertiary);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  animation: scrollHint 2.4s ease-in-out infinite;
}
.hero-scroll span::after {
  content: '↓';
  display: block;
  margin-top: 6px;
  font-size: 14px;
  color: var(--text-tertiary);
}
@keyframes scrollHint {
  0%, 100% { transform: translate(-50%, 0); opacity: 0.6; }
  50% { transform: translate(-50%, 4px); opacity: 1; }
}

.page-head {
  position: relative;
  min-height: 50vh;
  padding-top: calc(64px + var(--s-16));
  padding-bottom: var(--s-16);
  overflow: hidden;
  border-bottom: 1px solid var(--border);
}
.page-head-canvas {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  z-index: 0;
}
.page-head-content {
  position: relative; z-index: 1;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 48px;
  width: 100%;
}
.page-head-static {
  padding-top: calc(64px + var(--s-20));
  padding-bottom: var(--s-20);
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
}

@media (max-width: 768px) {
  .hero-content, .page-head-content { padding: 0 24px; }
  .hero-name { right: 24px; }
  .page-head-static { padding-top: calc(64px + var(--s-12)); padding-bottom: var(--s-12); }
}

/* ————————————————————————————————————— */
/* Problem panels (3-up)                     */
/* ————————————————————————————————————— */

.problem-panels {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  background: var(--bg-secondary);
  border-block: 1px solid var(--border);
}
.problem-panel {
  padding: var(--s-16) var(--s-10);
  border-right: 1px solid var(--border);
}
.problem-panel:last-child { border-right: 0; }
.problem-panel .filing { margin-bottom: var(--s-5); display: block; }
.problem-panel h3 {
  font-size: 20px; font-weight: 600; letter-spacing: -0.015em;
  color: var(--text-primary);
  margin-bottom: var(--s-4);
}
.problem-panel p {
  font-size: 15px; line-height: 1.6;
  color: var(--text-secondary);
}
@media (max-width: 900px) {
  .problem-panels { grid-template-columns: 1fr; }
  .problem-panel { border-right: 0; border-bottom: 1px solid var(--border); }
  .problem-panel:last-child { border-bottom: 0; }
}

/* ————————————————————————————————————— */
/* Split sections (heading left / body right) */
/* ————————————————————————————————————— */

.split {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: var(--s-16);
  align-items: start;
}
.split-head .eyebrow { margin-bottom: var(--s-4); }
.split-body { max-width: 560px; }
.split-body p + p { margin-top: var(--s-5); }

@media (max-width: 900px) {
  .split { grid-template-columns: 1fr; gap: var(--s-8); }
}

/* Reference class strip */
.ref-strip {
  margin-top: var(--s-10);
  border-top: 1px solid var(--border);
  padding-top: var(--s-5);
}
.ref-row {
  display: grid;
  grid-template-columns: 220px 1fr;
  padding: 10px 0;
  border-bottom: 1px dashed var(--border);
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-secondary);
}
.ref-row .name { color: var(--text-tertiary); letter-spacing: 0.04em; }
.ref-row.is-us { border-bottom: 0; padding-top: 16px; }
.ref-row.is-us .name { color: var(--accent); }
.ref-row.is-us .desc { color: var(--text-primary); }
.ref-row-divider {
  height: 0;
  border-top: 1px solid var(--border-strong);
  margin: 4px 0;
}

/* ————————————————————————————————————— */
/* Two-column feature grids                  */
/* ————————————————————————————————————— */

.feat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  column-gap: var(--s-12);
  row-gap: var(--s-8);
  margin-top: var(--s-10);
}
.feat {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: var(--s-4);
  padding: var(--s-4) 0;
  border-top: 1px solid var(--border);
}
.feat .name {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  padding-top: 2px;
}
.feat p {
  font-size: 14px;
  line-height: 1.55;
  color: var(--text-secondary);
}
@media (max-width: 768px) {
  .feat-grid { grid-template-columns: 1fr; }
  .feat { grid-template-columns: 1fr; gap: 6px; }
}

/* ————————————————————————————————————— */
/* Component rows (product page)             */
/* ————————————————————————————————————— */

.component-row {
  padding-block: var(--s-20);
  border-top: 1px solid var(--border);
}
.component-row.is-alt { background: var(--bg-secondary); }
.component-row .filing { display: block; margin-bottom: var(--s-4); }
.component-row h3 {
  font-size: 28px; font-weight: 600; letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: var(--s-6);
}
.component-row .body {
  max-width: 620px;
  font-size: 15px;
  line-height: 1.65;
  color: var(--text-secondary);
}
.component-row .body p + p { margin-top: var(--s-4); }
.component-row .meta {
  margin-top: var(--s-6);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--text-tertiary);
}

/* ————————————————————————————————————— */
/* Scenario (notes page)                     */
/* ————————————————————————————————————— */

.scenario {
  padding-block: var(--s-20);
  border-top: 1px solid var(--border);
}
.scenario .filing { display: block; margin-bottom: var(--s-4); }
.scenario h3 {
  font-size: 28px;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: var(--s-6);
  max-width: 22ch;
}
.scenario-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: var(--s-10);
  align-items: start;
}
.scenario p {
  font-size: 15px; line-height: 1.65;
  color: var(--text-secondary);
}
.scenario p + p { margin-top: var(--s-4); }
@media (max-width: 900px) {
  .scenario-grid { grid-template-columns: 1fr; gap: var(--s-6); }
}

/* ————————————————————————————————————— */
/* Essay list                                */
/* ————————————————————————————————————— */

.essay-list { border-top: 1px solid var(--border); }
.essay {
  display: grid;
  grid-template-columns: 160px 1fr 100px;
  gap: var(--s-8);
  padding: var(--s-6) 0;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  transition: background 0.2s;
}
.essay:hover { background: var(--accent-subtle); }
.essay:hover .essay-title { color: var(--accent); }
.essay .filing {
  align-self: start;
  padding-top: 3px;
}
.essay-title {
  font-size: 18px;
  font-weight: 500;
  letter-spacing: -0.012em;
  color: var(--text-primary);
  margin-bottom: 6px;
  transition: color 0.15s;
}
.essay-dek {
  font-size: 14px;
  line-height: 1.55;
  color: var(--text-secondary);
  max-width: 62ch;
}
.essay-read {
  align-self: start;
  text-align: right;
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-tertiary);
}
@media (max-width: 768px) {
  .essay {
    grid-template-columns: 1fr;
    gap: 6px;
  }
  .essay-read { text-align: left; }
}

/* ————————————————————————————————————— */
/* About page background list                */
/* ————————————————————————————————————— */

.bg-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--s-3);
  margin-top: var(--s-8);
  max-width: 720px;
}
.bg-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--s-4);
  padding: 10px 0;
  border-top: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 13px;
}
.bg-row .role { color: var(--text-primary); }
.bg-row .period { color: var(--text-tertiary); }
@media (max-width: 768px) { .bg-list { grid-template-columns: 1fr; } }

/* ————————————————————————————————————— */
/* Three beliefs block                       */
/* ————————————————————————————————————— */

.belief { padding: var(--s-6) 0; border-top: 1px solid var(--border); }
.belief:first-child { border-top: 0; }
.belief h4 {
  font-size: 18px; font-weight: 600; letter-spacing: -0.012em;
  color: var(--text-primary);
  margin-bottom: var(--s-2);
}
.belief p {
  max-width: 640px;
  font-size: 15px;
  line-height: 1.65;
  color: var(--text-secondary);
}

/* ————————————————————————————————————— */
/* Quiet close                                */
/* ————————————————————————————————————— */

.close-quiet {
  padding-block: var(--s-16);
  text-align: center;
  border-top: 1px solid var(--border);
}
.close-quiet .line-a {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--text-tertiary);
  text-transform: uppercase;
  margin-bottom: var(--s-5);
}
.close-quiet .line-c {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--text-tertiary);
  margin-bottom: var(--s-6);
}
.close-quiet .line-b {
  font-size: 17px;
  color: var(--text-secondary);
}
.close-ctas {
  display: flex;
  gap: var(--s-8);
  justify-content: center;
  flex-wrap: wrap;
}

/* Email-capture modal (Thinking essays not yet published) */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(0, 0, 0, 0.72);
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
}
.modal-overlay.is-open { display: flex; }
.modal-card {
  position: relative;
  width: 100%;
  max-width: 440px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-strong);
  border-radius: 4px;
  padding: 40px 36px 36px;
  animation: modal-rise 180ms ease;
}
@keyframes modal-rise {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}
.modal-close {
  position: absolute;
  top: 16px;
  right: 18px;
  background: none;
  border: 0;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--text-tertiary);
}
.modal-close:hover { color: var(--text-primary); }
.modal-title { margin: 10px 0 14px; }
.modal-body {
  color: var(--text-secondary);
  font-size: 16px;
  line-height: 1.55;
  margin-bottom: 24px;
  max-width: 38ch;
}
.modal-form { display: flex; flex-direction: column; gap: 12px; }
.modal-form input[type="email"] {
  width: 100%;
  padding: 13px 14px;
  background: var(--bg-primary);
  border: 1px solid var(--border-strong);
  border-radius: 3px;
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 14px;
}
.modal-form input[type="email"]:focus {
  outline: none;
  border-color: var(--accent);
}
.modal-form button {
  padding: 13px 16px;
  background: var(--text-primary);
  color: var(--bg-primary);
  border: 0;
  border-radius: 3px;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
}
.modal-form button:hover { background: var(--accent-hover); }
.modal-done {
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.5;
}
.essay { cursor: pointer; }

/* Notes archive */
.archive { margin-top: var(--s-12); }
.archive h4 {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: var(--s-5);
}
.archive-note {
  padding: var(--s-5) 0;
  border-top: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.65;
  color: var(--text-secondary);
  max-width: 72ch;
}
.archive-note .filing {
  display: block;
  color: var(--text-tertiary);
  margin-bottom: 6px;
}