/* ==========================================================================
   AI Journal
   Quiet, private, paper-like. Violet for the model, warm paper for the words.
   ========================================================================== */

.theme-journal {
  --accent: #a78bfa;
  --accent-2: #c4b5fd;
  --paper: #f6f3ec;
  --paper-2: #ece7dc;
  --ink: #26232d;
  --serif: ui-serif, "New York", "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
}

.theme-journal ::selection {
  background: rgba(167, 139, 250, 0.45);
}

/* ── Hero ────────────────────────────────────────────────────────────────── */

.aj-hero {
  position: relative;
  padding-top: calc(var(--nav-h) + 56px);
  overflow: hidden;
  isolation: isolate;
}

.aj-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(50% 55% at 75% 55%, rgba(167, 139, 250, 0.22), transparent 70%),
    radial-gradient(30% 40% at 10% 20%, rgba(196, 181, 253, 0.07), transparent 70%);
}

.aj-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(32px, 5vw, 72px);
  align-items: center;
  margin-top: 36px;
}

.aj-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 30px;
  padding: 0 12px;
  border-radius: 999px;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--accent-2);
  background: rgba(167, 139, 250, 0.1);
  border: 1px solid rgba(167, 139, 250, 0.3);
}

/* Shelved, so the dot sits still. */
.aj-status i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.6;
}

@keyframes aj-breathe {
  50% {
    opacity: 0.35;
    transform: scale(0.8);
  }
}

.aj-hero h1 {
  margin-top: 22px;
}

.aj-hero__promise {
  margin-top: 18px;
  font-family: var(--serif);
  font-size: clamp(24px, 2.6vw, 34px);
  font-weight: 500;
  font-style: italic;
  letter-spacing: -0.01em;
  line-height: 1.25;
  color: var(--accent-2);
}

.aj-hero .lead {
  margin-top: 22px;
}

/* The iPad: drawn, not photographed — there are no screenshots yet. */
.ipad {
  position: relative;
  aspect-ratio: 4 / 3;
  padding: 2.6%;
  border-radius: 5.2% / 7%;
  background: linear-gradient(150deg, #3b3b42, #16161a 45%, #2a2a30);
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.08),
    inset 0 0 0 1px rgba(255, 255, 255, 0.05),
    0 60px 120px -40px rgba(0, 0, 0, 0.85),
    0 0 120px -20px rgba(167, 139, 250, 0.25);
}

.ipad__screen {
  position: relative;
  height: 100%;
  border-radius: 3% / 4%;
  overflow: hidden;
  background: var(--paper);
  color: var(--ink);
  display: grid;
  grid-template-columns: 30% 1fr;
}

.ipad__side {
  padding: 7% 8%;
  background: var(--paper-2);
  border-right: 1px solid rgba(38, 35, 45, 0.08);
  font-size: clamp(8px, 0.85vw, 12px);
}

.ipad__side b {
  display: block;
  font-size: 1.3em;
  letter-spacing: -0.02em;
  margin-bottom: 10%;
}

.ipad__entry {
  padding: 8% 0;
  border-bottom: 1px solid rgba(38, 35, 45, 0.08);
}

.ipad__entry span {
  display: block;
  color: #8b8596;
  font-size: 0.85em;
}

.ipad__entry p {
  margin-top: 3px;
  font-family: var(--serif);
  line-height: 1.35;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.ipad__entry.is-current {
  margin: 0 -10%;
  padding: 8% 10%;
  border-radius: 10px;
  background: rgba(109, 79, 224, 0.1);
  border: 0;
}

.ipad__main {
  position: relative;
  padding: 6% 7%;
  font-size: clamp(9px, 1.05vw, 15px);
}

.ipad__date {
  font-size: 0.8em;
  font-weight: 600;
  color: #8b8596;
  letter-spacing: 0.02em;
}

.ipad__text {
  margin-top: 4%;
  font-family: var(--serif);
  font-size: 1.28em;
  line-height: 1.55;
  min-height: 6.5em;
}

.ipad__text .caret-j {
  display: inline-block;
  width: 2px;
  height: 1.1em;
  margin-left: 1px;
  vertical-align: -0.18em;
  background: #6d4fe0;
  animation: caret 1s steps(1) infinite;
}

.ipad__insight {
  position: absolute;
  left: 7%;
  right: 7%;
  bottom: 7%;
  display: flex;
  gap: 10px;
  padding: 4% 4.5%;
  border-radius: 14px;
  background: rgba(109, 79, 224, 0.1);
  color: #4c35b5;
  font-weight: 500;
  line-height: 1.4;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.6s var(--ease-out), transform 0.8s var(--ease-out);
}

.ipad__insight.is-on {
  opacity: 1;
  transform: none;
}

.ipad__insight .i {
  flex-shrink: 0;
  margin-top: 2px;
  font-size: 1.2em;
}

.aj-device {
  position: relative;
}

.aj-device__chip {
  position: absolute;
  right: -2%;
  top: -5%;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: #ddd6fe;
  background: rgba(30, 27, 44, 0.8);
  border: 1px solid rgba(167, 139, 250, 0.35);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  box-shadow: 0 16px 40px -12px rgba(0, 0, 0, 0.7);
}

.aj-device__chip .i {
  font-size: 14px;
}

@media (max-width: 900px) {
  .aj-hero__grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .aj-device__chip {
    right: 4%;
    top: -14px;
  }
}

/* ── Principle ───────────────────────────────────────────────────────────── */

.aj-principle {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: clamp(48px, 6vw, 80px);
}

.aj-flow {
  position: relative;
  padding: 30px;
  min-height: 280px;
}

.aj-flow h3 {
  font-size: 20px;
  letter-spacing: -0.025em;
}

.aj-flow p {
  margin-top: 8px;
  color: var(--fg-2);
  font-size: 15px;
  line-height: 1.55;
}

.aj-flow__diagram {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 30px;
}

.aj-node {
  display: grid;
  place-items: center;
  gap: 6px;
  flex-shrink: 0;
  width: 86px;
  padding: 14px 8px;
  border-radius: 16px;
  font-size: 11.5px;
  font-weight: 500;
  text-align: center;
  color: var(--fg-2);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line-2);
}

.aj-node .i {
  font-size: 20px;
  color: var(--fg);
}

.aj-wire {
  position: relative;
  flex: 1;
  height: 2px;
  min-width: 20px;
  background: var(--line-2);
  overflow: hidden;
}

.aj-wire::after {
  content: "";
  position: absolute;
  inset: 0;
  width: 40%;
  background: linear-gradient(90deg, transparent, var(--wire, #ff6b6b), transparent);
  animation: aj-flow 2.2s linear infinite;
}

@keyframes aj-flow {
  from { transform: translateX(-100%); }
  to { transform: translateX(260%); }
}

.aj-flow--bad .aj-node--cloud {
  border-color: rgba(255, 107, 107, 0.4);
  color: #ffb4b4;
}

.aj-flow--good {
  border-color: rgba(167, 139, 250, 0.3);
  background:
    radial-gradient(80% 100% at 100% 0%, rgba(167, 139, 250, 0.14), transparent 60%),
    var(--surface);
}

.aj-flow--good .aj-wire {
  --wire: var(--accent);
}

.aj-flow--good .aj-node--device {
  border-color: rgba(167, 139, 250, 0.5);
  color: var(--accent-2);
  box-shadow: 0 0 30px -8px rgba(167, 139, 250, 0.6);
}

.aj-flow__tag {
  position: absolute;
  top: 26px;
  right: 26px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.aj-flow--bad .aj-flow__tag {
  color: #ff8f8f;
}

.aj-flow--good .aj-flow__tag {
  color: var(--accent-2);
}

@media (max-width: 900px) {
  .aj-principle {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 520px) {
  .aj-node {
    width: 72px;
    font-size: 10.5px;
  }
}

/* ── The demo ────────────────────────────────────────────────────────────── */

.aj-demo {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: 16px;
}

.aj-page {
  position: relative;
  padding: clamp(24px, 3vw, 40px);
  border-radius: var(--r-l);
  background: linear-gradient(180deg, var(--paper), var(--paper-2));
  color: var(--ink);
  box-shadow: 0 40px 90px -40px rgba(0, 0, 0, 0.8);
}

.aj-page__top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  font-weight: 600;
  color: #8b8596;
}

.aj-samples {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.aj-samples button {
  height: 28px;
  padding: 0 11px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 500;
  color: #5a5466;
  background: rgba(38, 35, 45, 0.06);
  transition: background-color 0.2s, color 0.2s;
}

.aj-samples button:hover {
  background: rgba(109, 79, 224, 0.12);
  color: #4c35b5;
}

.aj-textarea {
  display: block;
  width: 100%;
  min-height: 190px;
  margin-top: 18px;
  padding: 0;
  border: 0;
  outline: 0;
  resize: vertical;
  background: transparent;
  color: var(--ink);
  font-family: var(--serif);
  font-size: clamp(18px, 1.7vw, 22px);
  line-height: 1.6;
  letter-spacing: 0;
}

.aj-textarea::placeholder {
  color: #a9a3b4;
}

.aj-page:focus-within {
  box-shadow: 0 40px 90px -40px rgba(0, 0, 0, 0.8), 0 0 0 3px rgba(167, 139, 250, 0.45);
}

.aj-page__foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid rgba(38, 35, 45, 0.1);
  font-size: 12.5px;
  color: #8b8596;
}

.aj-reflect {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 42px;
  padding: 0 18px;
  border-radius: 999px;
  background: #26232d;
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  transition: transform 0.4s var(--ease-out), background-color 0.3s, opacity 0.3s;
}

.aj-reflect:hover {
  background: #3a2f6b;
}

.aj-reflect:active {
  transform: scale(0.96);
}

.aj-reflect[disabled] {
  opacity: 0.5;
  cursor: default;
}

.aj-reflect .i {
  font-size: 16px;
}

/* The console: what the "model" is doing, and what the network isn't. */
.aj-console {
  display: flex;
  flex-direction: column;
  padding: 24px;
  border-radius: var(--r-l);
  background: #120f1c;
  border: 1px solid rgba(167, 139, 250, 0.22);
  font-size: 14px;
}

.aj-console__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(221, 214, 254, 0.6);
}

.aj-console__state {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: rgba(221, 214, 254, 0.85);
}

.aj-console__state i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #5b5470;
  transition: background-color 0.3s, box-shadow 0.3s;
}

.aj-console.is-thinking .aj-console__state i {
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent);
  animation: aj-breathe 0.9s var(--ease-in-out) infinite;
}

.aj-console.is-done .aj-console__state i {
  background: #30d158;
  box-shadow: 0 0 10px rgba(48, 209, 88, 0.8);
}

.aj-meters {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  margin-top: 18px;
}

.aj-meter {
  padding: 12px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid rgba(255, 255, 255, 0.07);
}

.aj-meter span {
  display: block;
  font-size: 11px;
  color: rgba(221, 214, 254, 0.55);
}

.aj-meter b {
  display: block;
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: 17px;
  font-weight: 500;
  color: #f5f3ff;
  font-variant-numeric: tabular-nums;
}

.aj-meter--net b {
  color: #7ee79b;
}

.aj-output {
  flex: 1;
  min-height: 150px;
  margin-top: 16px;
  padding: 16px;
  border-radius: 16px;
  background: rgba(167, 139, 250, 0.07);
  border: 1px solid rgba(167, 139, 250, 0.16);
  color: #ede9fe;
  line-height: 1.6;
}

.aj-output__mood {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  background: color-mix(in srgb, var(--mood, #a78bfa) 18%, transparent);
  color: var(--mood, #c4b5fd);
  border: 1px solid color-mix(in srgb, var(--mood, #a78bfa) 40%, transparent);
}

.aj-output__mood i {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--mood, #a78bfa);
}

.aj-output__empty {
  color: rgba(221, 214, 254, 0.45);
  font-size: 13.5px;
}

.aj-output__cursor {
  display: inline-block;
  width: 7px;
  height: 1em;
  margin-left: 2px;
  vertical-align: -0.12em;
  background: var(--accent-2);
  animation: caret 0.9s steps(1) infinite;
}

.aj-console__foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-top: 14px;
  font-size: 12px;
  color: rgba(221, 214, 254, 0.5);
}

.aj-offline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  user-select: none;
}

.aj-offline input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.aj-switch {
  position: relative;
  width: 34px;
  height: 20px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.14);
  transition: background-color 0.3s;
}

.aj-switch::after {
  content: "";
  position: absolute;
  top: 2px;
  left: 2px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #fff;
  transition: transform 0.4s var(--ease-spring);
}

.aj-offline input:checked + .aj-switch {
  background: #ff9f0a;
}

.aj-offline input:checked + .aj-switch::after {
  transform: translateX(14px);
}

.aj-offline input:focus-visible + .aj-switch {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.aj-note {
  margin-top: 16px;
  font-size: 12.5px;
  line-height: 1.55;
  color: var(--fg-3);
}

@media (max-width: 900px) {
  .aj-demo {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* ── Mood week ───────────────────────────────────────────────────────────── */

.aj-week {
  padding: clamp(24px, 3vw, 36px);
}

.aj-week__chart {
  position: relative;
  height: 220px;
  margin-top: 26px;
}

.aj-week__chart svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
}

.aj-week__line {
  fill: none;
  stroke: url(#aj-grad);
  stroke-width: 3;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-dasharray: 1;
  stroke-dashoffset: 1;
  transition: stroke-dashoffset 2s var(--ease-out);
}

.aj-week.is-in .aj-week__line {
  stroke-dashoffset: 0;
}

.aj-week__area {
  fill: url(#aj-area);
  opacity: 0;
  transition: opacity 1.2s var(--ease-out) 0.6s;
}

.aj-week.is-in .aj-week__area {
  opacity: 1;
}

.aj-week__dot {
  fill: #120f1c;
  stroke-width: 2.5;
}

.aj-week__days {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  text-align: center;
  color: var(--fg-3);
}

.aj-week__legend {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin-top: 18px;
  font-size: 12.5px;
  color: var(--fg-2);
}

.aj-week__legend span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.aj-week__legend i {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

/* ── Features ────────────────────────────────────────────────────────────── */

.aj-features {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  border-top: 1px solid var(--line);
}

.aj-feature {
  padding: 32px 26px 8px 0;
}

.aj-feature + .aj-feature {
  padding-left: 26px;
  border-left: 1px solid var(--line);
}

.aj-feature .i {
  font-size: 22px;
  color: var(--accent);
}

.aj-feature h3 {
  margin-top: 22px;
  font-size: 19px;
  letter-spacing: -0.022em;
}

.aj-feature p {
  margin-top: 8px;
  font-size: 15px;
  line-height: 1.55;
  color: var(--fg-2);
}

@media (max-width: 900px) {
  .aj-features {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .aj-feature:nth-child(3) {
    padding-left: 0;
    border-left: 0;
  }
}

@media (max-width: 520px) {
  .aj-features {
    grid-template-columns: minmax(0, 1fr);
  }

  .aj-feature + .aj-feature {
    padding-left: 0;
    border-left: 0;
    border-top: 1px solid var(--line);
  }
}

/* ── Code window ─────────────────────────────────────────────────────────── */

.aj-code {
  margin: 0;
  padding: 22px 24px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.75;
  color: #d6d3e3;
  background: #17151f;
  tab-size: 4;
}

.aj-code .k { color: #ff7ab2; }
.aj-code .t { color: #dabaff; }
.aj-code .f { color: #67b7a4; }
.aj-code .s { color: #ff8170; }
.aj-code .c { color: #7f8c98; font-style: italic; }
.aj-code .p { color: #6bdfff; }
.aj-code .n { color: #d9c97c; }