/*
 * Darren Lin — AI Automation Builder
 * Personal brand site v2: cleaner, more visual
 *
 * macrostructure: Editorial Index
 * mood: elegant / editorial
 * palette: elegant analogous (base hue 74.8, accent hue 106.8)
 * type: Gloock (display) + Inter (body)
 *
 * archetype picks:
 *   nav: N4 Editorial masthead
 *   hero: H1 Statement fold + real image
 *   capabilities: 4-up grid with icons
 *   project: visual-forward Hermes showcase
 *   process: 4-step horizontal timeline
 *   cta: statement + action
 *   footer: Ft1 Masthead
 *
 * contrast verified: primary/on-primary 4.93:1 · bg/primary 4.71:1
 */

:root {
  /* palette */
  --text:       #201911;
  --bg:         #fff9f2;
  --surface:    #f5efe8;
  --primary:    #91692c;
  --on-primary: #ffffff;
  --secondary:  #ebdbc7;
  --accent:     #78752e;
  --border:     #e5dfd7;

  /* type */
  --font-display: 'Gloock', 'EB Garamond', 'Times New Roman', serif;
  --font-body:    'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* spacing (4px base) */
  --space-1:  4px;
  --space-2:  8px;
  --space-3:  12px;
  --space-4:  16px;
  --space-6:  24px;
  --space-8:  32px;
  --space-12: 48px;
  --space-16: 64px;
  --space-24: 96px;
  --space-32: 128px;
  --space-40: 160px;
  --space-48: 192px;

  /* radius */
  --radius-sm: 2px;
  --radius-md: 4px;
  --radius-lg: 8px;

  /* shadow */
  --shadow-card: 0 1px 3px rgba(32, 25, 17, 0.04);
  --shadow-lift: 0 4px 12px rgba(32, 25, 17, 0.06);
}

/* ==================== RESET ==================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 400;
  color: var(--text);
  letter-spacing: -0.01em;
}

/* ==================== LAYOUT ==================== */
.section {
  padding: var(--space-32) var(--space-6);
  max-width: 1100px;
  margin: 0 auto;
}
.section--alt {
  background: var(--surface);
  max-width: none;
  padding-left: var(--space-6);
  padding-right: var(--space-6);
}
.section--alt > * { max-width: 1100px; margin-left: auto; margin-right: auto; }

/* ==================== NAV ==================== */
.nav {
  padding: var(--space-8) var(--space-6);
  position: sticky;
  top: 0;
  background: rgba(255, 249, 242, 0.92);
  backdrop-filter: blur(12px);
  z-index: 100;
}
.nav__inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}
.nav__wordmark {
  font-family: var(--font-display);
  font-size: 1.4rem;
  letter-spacing: -0.01em;
}
.nav__links { display: flex; gap: var(--space-6); }

@media (hover: hover) and (pointer: fine) {
  .nav__links a:hover { opacity: 1; }
}

.nav__links a {
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text);
  opacity: 0.65;
  transition: opacity 0.2s ease;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}
.nav__rule {
  margin-top: var(--space-4);
  border: 0;
  border-top: 1px solid var(--border);
  max-width: 1100px;
  margin-left: auto;
  margin-right: auto;
}

/* ==================== HERO ==================== */
.hero {
  position: relative;
  padding: var(--space-40) var(--space-6) var(--space-32);
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  align-items: center;
}
.hero__media {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lift);
}
.hero__image {
  width: 100%;
  height: 420px;
  object-fit: cover;
  display: block;
}
.hero__media-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 249, 242, 0.15) 0%, rgba(255, 249, 242, 0.05) 100%);
  pointer-events: none;
}
.hero__media-accent {
  display: none;
}
.hero__inner {
  max-width: 520px;
}
.hero__eyebrow {
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: var(--space-6);
}
.hero__headline {
  font-size: clamp(2.4rem, 5vw, 4rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-6);
}
.hero__subhead {
  font-size: 1.05rem;
  line-height: 1.7;
  opacity: 0.75;
  margin-bottom: var(--space-8);
}
.hero__actions { display: flex; gap: var(--space-4); flex-wrap: wrap; }

/* ==================== BUTTONS ==================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  border-radius: var(--radius-sm);
  transition: background-color 0.2s ease, color 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
  cursor: pointer;
  border: none;
  white-space: nowrap;
}

@media (hover: hover) and (pointer: fine) {
  .btn--primary:hover { background: #7d5a25; transform: translateY(-1px); }
  .btn--ghost:hover { border-color: var(--text); transform: translateY(-1px); }
}

.btn--primary { background: var(--primary); color: var(--on-primary); }
.btn--ghost { background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn--large { padding: 18px 36px; font-size: 1.05rem; }

/* ==================== SECTION HEADS ==================== */
.section__head { margin-bottom: var(--space-16); }
.section__index {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: var(--space-4);
}
.section__title {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  line-height: 1.15;
  letter-spacing: -0.015em;
}

/* ==================== CAPABILITIES ==================== */
.capabilities {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-8);
}
.cap {
  padding: var(--space-8);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: transform 0.2s ease, opacity 0.2s ease;
  position: relative;
}
.cap::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lift);
  opacity: 0;
  transition: opacity 0.2s ease;
  pointer-events: none;
}
@media (hover: hover) and (pointer: fine) {
  .cap:hover::after { opacity: 1; }
  .cap:hover {
    transform: translateY(-2px);
  }
}

.cap__icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--secondary);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-6);
}
.cap__icon svg { width: 24px; height: 24px; }
.cap__title { font-size: 1.3rem; margin-bottom: var(--space-3); line-height: 1.2; }
.cap__body { font-size: 0.95rem; opacity: 0.75; line-height: 1.65; }

/* ==================== HERMES PROJECT ==================== */
.hermes {
  padding: var(--space-32) var(--space-6);
  background: var(--surface);
}
.hermes--plain {
  background: var(--bg);
}
.hermes__inner--flip {
  direction: rtl;
}
.hermes__inner--flip > * {
  direction: ltr;
}
.hermes__inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}
.hermes__eyebrow {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: var(--space-4);
}
.hermes__title {
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.1;
  margin-bottom: var(--space-6);
}
.hermes__lede {
  font-size: 1.05rem;
  line-height: 1.75;
  opacity: 0.8;
  margin-bottom: var(--space-8);
}
.hermes__features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-bottom: var(--space-12);
}
.hermes__features li {
  font-size: 0.95rem;
  padding-left: var(--space-6);
  position: relative;
  opacity: 0.8;
}
.hermes__features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary);
}
.hermes__media {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lift);
}
.hermes__image {
  width: 100%;
  height: 480px;
  object-fit: cover;
}
.hermes__media-accent {
  position: absolute;
  bottom: -20px;
  right: -20px;
  width: 80px;
  height: 80px;
  background: var(--primary);
  opacity: 0.1;
  border-radius: 50%;
}

/* ==================== WORKFLOW ==================== */
.workflow {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-8);
}
.workflow__step {
  text-align: center;
  padding: var(--space-8) var(--space-4);
  position: relative;
}
.workflow__num {
  font-family: var(--font-display);
  font-size: 3rem;
  color: var(--primary);
  line-height: 1;
  margin-bottom: var(--space-6);
  opacity: 0.9;
}
.workflow__body h3 {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-3);
}
.workflow__body p {
  font-size: 0.9rem;
  line-height: 1.6;
  opacity: 0.7;
}

/* ==================== CTA ==================== */
.cta {
  padding: var(--space-40) var(--space-6);
  text-align: center;
}
.cta__inner { max-width: 600px; margin: 0 auto; }
.cta__title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  line-height: 1.2;
  margin-bottom: var(--space-12);
}
.cta__note {
  margin-top: var(--space-8);
  font-size: 0.85rem;
  opacity: 0.55;
  letter-spacing: 0.03em;
}

/* ==================== CONTACT FORM ==================== */
.contact {
  padding: var(--space-32) var(--space-6);
  background: var(--surface);
}
.contact__inner {
  max-width: 800px;
  margin: 0 auto;
}
.contact__header {
  text-align: center;
  margin-bottom: var(--space-12);
}
.contact__eyebrow {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: var(--space-4);
}
.contact__title {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  line-height: 1.15;
  margin-bottom: var(--space-4);
}
.contact__subhead {
  font-size: 1rem;
  opacity: 0.7;
  max-width: 500px;
  margin: 0 auto;
  line-height: 1.65;
}
.contact__note {
  text-align: center;
  margin-top: var(--space-8);
  font-size: 0.85rem;
  opacity: 0.55;
  letter-spacing: 0.03em;
}

/* form layout */
.form {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-12);
  box-shadow: var(--shadow-card);
}
.form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
}
.form__field {
  margin-bottom: var(--space-6);
}
.form__label {
  display: block;
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: var(--space-3);
  color: var(--text);
  letter-spacing: 0.01em;
}
.form__optional {
  font-weight: 400;
  opacity: 0.5;
  font-size: 0.8rem;
}
.form__input,
.form__select,
.form__textarea {
  width: 100%;
  padding: 14px 16px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  line-height: 1.5;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: border-color 0.2s ease;
  appearance: none;
  -webkit-appearance: none;
}
.form__input:focus,
.form__select:focus,
.form__textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(145, 105, 44, 0.1);
}
.form__textarea {
  resize: vertical;
  min-height: 120px;
}
.form__select {
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%23201911' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
  cursor: pointer;
}
.form__submit {
  width: 100%;
  margin-top: var(--space-4);
}
.form__submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* feedback message */
.form__feedback {
  margin-top: var(--space-4);
  text-align: center;
  font-size: 0.9rem;
  min-height: 1.5em;
}
.form__feedback--success {
  color: #3d6b35;
}
.form__feedback--error {
  color: #b03a2e;
  opacity: 0.9;
}

/* responsive form */
@media (max-width: 600px) {
  .form { padding: var(--space-8); }
  .form__row { grid-template-columns: 1fr; }
}

/* ==================== FOOTER ==================== */
.footer {
  padding: var(--space-16) var(--space-6);
  border-top: 1px solid var(--border);
}
.footer__inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: var(--space-6);
}
.footer__wordmark {
  font-family: var(--font-display);
  font-size: 1.3rem;
  letter-spacing: -0.01em;
}
.footer__tagline { font-size: 0.85rem; opacity: 0.6; margin-top: var(--space-2); }
.footer__meta { font-size: 0.8rem; opacity: 0.5; text-align: right; }
.footer__meta p + p { margin-top: var(--space-2); }

/* ==================== STATEMENT HERO ==================== */
.hero--statement {
  display: block;
  max-width: 900px;
  padding-top: var(--space-48);
  padding-bottom: var(--space-40);
}
.hero__inner--wide {
  max-width: none;
}
.hero--statement .hero__headline {
  font-size: clamp(3rem, 7vw, 5.5rem);
}
.hero--statement .hero__subhead {
  font-size: 1.15rem;
  max-width: 620px;
}

/* ==================== BUILT MOCKUPS ==================== */
.mock {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  box-shadow: var(--shadow-card);
}

/* routing diagram */
.mock--routing {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  align-items: stretch;
}
.mock__node {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-6);
  text-align: center;
}
.mock__node--center {
  background: var(--primary);
  border-color: var(--primary);
}
.mock__node--center .mock__node-title,
.mock__node--center .mock__node-sub {
  color: var(--on-primary);
}
.mock__node--accent {
  border-color: var(--primary);
  border-width: 2px;
}
.mock__node--verify {
  background: var(--secondary);
}
.mock__node-title {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 1rem;
  margin-bottom: var(--space-1);
}
.mock__node-sub {
  font-size: 0.8rem;
  opacity: 0.65;
}
.mock__branches {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
  position: relative;
}

/* signal card */
.mock--signal {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.mock__signal-caption {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
}
.mock__signal-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.mock__signal-head {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-6);
  border-bottom: 1px solid var(--border);
}
.mock__signal-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #3d6b35;
  flex-shrink: 0;
}
.mock__signal-pair {
  font-weight: 600;
  font-size: 1rem;
  flex: 1;
}
.mock__signal-tf {
  font-size: 0.75rem;
  opacity: 0.55;
  font-weight: 500;
}
.mock__signal-rows {
  padding: var(--space-2) var(--space-6);
}
.mock__signal-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
}
.mock__signal-row:last-child {
  border-bottom: none;
}
.mock__signal-row span {
  opacity: 0.65;
}
.mock__signal-row strong {
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}
.mock__signal-row--tp strong {
  color: var(--primary);
}
.mock__signal-foot {
  display: flex;
  justify-content: space-between;
  padding: var(--space-3) var(--space-6);
  background: var(--secondary);
  font-size: 0.8rem;
  font-weight: 500;
  opacity: 0.9;
}
.mock__signal-note {
  font-size: 0.8rem;
  opacity: 0.5;
  text-align: center;
  font-style: italic;
}

/* cadence strip */
.mock--cadence {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.mock__cadence-rows {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.mock__cadence-row {
  display: grid;
  grid-template-columns: 70px 1fr;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-6);
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  align-items: baseline;
}
.mock__cadence-row:last-child {
  border-bottom: none;
}
.mock__cadence-row--accent {
  background: var(--secondary);
}
.mock__cadence-time {
  font-weight: 600;
  font-size: 0.9rem;
  font-variant-numeric: tabular-nums;
  color: var(--primary);
}
.mock__cadence-task {
  font-size: 0.9rem;
}

/* responsive mocks */
@media (max-width: 600px) {
  .mock__branches {
    grid-template-columns: 1fr;
  }
  .hero--statement {
    padding-top: var(--space-24);
    padding-bottom: var(--space-24);
  }
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; gap: var(--space-12); padding-top: var(--space-24); }
  .hero__image { height: 300px; }
  .hermes__inner { grid-template-columns: 1fr; gap: var(--space-12); }
  .hermes__image { height: 300px; }
  .capabilities { grid-template-columns: 1fr 1fr; }
  .workflow { grid-template-columns: repeat(2, 1fr); gap: var(--space-12); }
}

@media (max-width: 600px) {
  .section { padding: var(--space-24) var(--space-4); }
  .hero { padding: var(--space-16) var(--space-4); }
  .capabilities { grid-template-columns: 1fr; }
  .workflow { grid-template-columns: 1fr; }
  .hero__actions { flex-direction: column; }
  .btn { width: 100%; }
  .footer__inner { flex-direction: column; align-items: flex-start; }
  .footer__meta { text-align: left; }
}

/* ==================== REDUCED MOTION ==================== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}