/* ==========================================================================
   AAC PLANT AUTOMATION: MANUAL VS AUTOMATIC GUIDE — STYLES
   Exact implementation of https://aac-plant-automation-guide.mitesh958.chatgpt.site/
   ========================================================================== */

:root {
  --navy: #0B1727;
  --blue: #0C4F80;
  --deep: #09263D;
  --white: #fff;
  --silver: #EEF2F5;
  --light: #F5F7F8;
  --text: #0B1727;
  --secondary: #5E6874;
  --muted: #84909C;
  --line: #DCE2E7;
  --sky: #8FC6EC;
  --max: 1400px;
  --pad: clamp(20px, 6.5vw, 104px);
  --section: clamp(92px, 11vw, 170px);
  --shadow: 0 22px 70px rgba(11, 23, 39, 0.12);
}

.automation-guide-page {
  background: var(--white);
  color: var(--text);
  font-family: 'Inter', "Helvetica Neue", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.68;
  -webkit-font-smoothing: antialiased;
  margin: 0;
}

.automation-guide-page main * {
  box-sizing: border-box;
}

.automation-guide-page main img {
  display: block;
  max-width: 100%;
  height: auto;
}

.automation-guide-page main a {
  color: inherit;
}

.automation-guide-page main button {
  font: inherit;
}

.automation-guide-page .shell {
  width: min(var(--max), calc(100% - 2 * var(--pad)));
  margin-inline: auto;
}

.automation-guide-page .eyebrow {
  margin: 0 0 18px !important;
  color: var(--blue);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
  background: transparent !important;
  border: none !important;
  border-radius: 0 !important;
  padding: 0 !important;
  display: block !important;
}

.automation-guide-page .eyebrow::before,
.automation-guide-page .tag::before,
.automation-guide-page .label::before,
.automation-guide-page .badge::before {
  content: none !important;
  display: none !important;
}

.automation-guide-page .display {
  margin: 0;
  font-size: clamp(44px, 6vw, 88px);
  line-height: .98;
  letter-spacing: -.055em;
  font-weight: 650;
  color: var(--navy);
}

.automation-guide-page .display span {
  color: var(--muted);
  font-weight: 500;
}

.automation-guide-page .section-title {
  max-width: 1050px;
}

.automation-guide-page .lede {
  max-width: 740px;
  margin: 28px 0 0;
  color: var(--secondary);
  font-size: clamp(18px, 1.7vw, 23px);
  line-height: 1.55;
}

.automation-guide-page .body-narrow {
  max-width: 780px;
}

.automation-guide-page .muted {
  color: var(--secondary);
}

.automation-guide-page .section {
  padding-block: var(--section);
}

.automation-guide-page .section--silver {
  background: var(--silver);
}

.automation-guide-page .section--light {
  background: var(--light);
}

.automation-guide-page .section--dark {
  background: linear-gradient(135deg, #104F7D 0%, #09263D 72%);
  color: white;
}

.automation-guide-page .section--dark .eyebrow {
  color: var(--sky);
}

.automation-guide-page .section--dark .lede {
  color: rgba(255, 255, 255, .72);
}

.automation-guide-page .section--dark .display {
  color: white;
}

.automation-guide-page .divider {
  border-top: 1px solid var(--line);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.automation-guide-page .hero {
  position: relative;
  min-height: 85vh;
  display: grid;
  align-items: center;
  overflow: hidden;
  background: #061526;
  color: white;
}

.automation-guide-page .hero-media {
  position: absolute;
  inset: 0;
}

.automation-guide-page .hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.automation-guide-page .hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(5, 18, 34, .78) 0%, rgba(5, 18, 34, .52) 49%, rgba(5, 18, 34, .25) 70%);
}

.automation-guide-page .hero-content {
  position: relative;
  z-index: 2;
  padding-top: 48px;
  padding-bottom: 64px;
}

.automation-guide-page .hero-copy {
  max-width: 720px;
}

.automation-guide-page .hero .eyebrow {
  color: var(--sky);
}

.automation-guide-page .hero h1 {
  margin: 0;
  font-size: clamp(52px, 6.6vw, 106px);
  line-height: .94;
  letter-spacing: -.06em;
  font-weight: 650;
  color: white;
}

.automation-guide-page .hero h1 span {
  display: inline;
  color: rgba(255, 255, 255, .6);
  font-weight: 500;
}

.automation-guide-page .hero p {
  max-width: 650px;
  margin: 28px 0 0;
  color: rgba(255, 255, 255, .76);
  font-size: clamp(17px, 1.55vw, 22px);
  line-height: 1.55;
}

.automation-guide-page .hero-actions {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-top: 36px;
  flex-wrap: wrap;
}

.automation-guide-page .button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 0 24px;
  text-decoration: none;
  font-size: 14px;
  font-weight: 700;
  transition: transform .2s, background .2s, color .2s, border-color .2s;
}

.automation-guide-page .button:hover {
  transform: translateY(-2px);
}

.automation-guide-page .button--light {
  background: white;
  color: var(--navy);
}

.automation-guide-page .button--outline {
  border: 1px solid rgba(255, 255, 255, .38);
  color: white;
  background: transparent;
}

.automation-guide-page .text-link {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: white;
  text-decoration: none;
  font-weight: 650;
  font-size: 15px;
}

.automation-guide-page .text-link::after {
  content: "→";
  transition: transform .2s;
}

.automation-guide-page .text-link:hover::after {
  transform: translateX(4px);
}

.automation-guide-page .hero-note {
  margin-top: 24px !important;
  font-size: 13px !important;
  color: rgba(255, 255, 255, .56) !important;
}

/* ==========================================================================
   Direct Answer Section
   ========================================================================== */
.automation-guide-page .answer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(300px, .65fr);
  gap: clamp(60px, 10vw, 150px);
  align-items: end;
}

.automation-guide-page .answer-statement {
  margin: 0;
  font-size: clamp(34px, 4.4vw, 68px);
  line-height: 1.08;
  letter-spacing: -.045em;
  font-weight: 560;
  color: var(--navy);
}

.automation-guide-page .answer-statement strong {
  color: var(--blue);
  font-weight: 650;
}

.automation-guide-page .answer-aside {
  border-left: 1px solid var(--line);
  padding-left: 32px;
  color: var(--secondary);
  font-size: 16px;
  line-height: 1.65;
}

/* ==========================================================================
   Why Decision Matters (Drivers)
   ========================================================================== */
.automation-guide-page .drivers {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 72px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.automation-guide-page .driver {
  padding: 32px 34px 38px 0;
  min-height: 225px;
}

.automation-guide-page .driver + .driver {
  border-left: 1px solid var(--line);
  padding-left: 34px;
}

.automation-guide-page .driver-num {
  display: block;
  margin-bottom: 38px;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: .12em;
}

.automation-guide-page .driver h3 {
  margin: 0 0 12px;
  font-size: 22px;
  letter-spacing: -.025em;
  color: var(--navy);
}

.automation-guide-page .driver p {
  margin: 0;
  color: var(--secondary);
  font-size: 15px;
  line-height: 1.62;
}

/* ==========================================================================
   Three Operating Models (Levels)
   ========================================================================== */
.automation-guide-page .levels-head {
  display: grid;
  grid-template-columns: 1fr .72fr;
  gap: 80px;
  align-items: end;
}

.automation-guide-page .levels-head .lede {
  margin: 0;
}

.automation-guide-page .level-list {
  margin-top: 72px;
  border-top: 1px solid var(--line);
}

.automation-guide-page .level {
  display: grid;
  grid-template-columns: 120px .85fr 1.2fr;
  gap: 44px;
  padding: 52px 0;
  border-bottom: 1px solid var(--line);
  align-items: start;
}

.automation-guide-page .level-number {
  font-size: 12px;
  color: var(--muted);
  letter-spacing: .15em;
}

.automation-guide-page .level h3 {
  margin: 0;
  font-size: clamp(28px, 3vw, 46px);
  line-height: 1;
  letter-spacing: -.04em;
  color: var(--navy);
}

.automation-guide-page .level-content p {
  margin: 0 0 18px;
  color: var(--secondary);
}

.automation-guide-page .chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.automation-guide-page .chip {
  padding: 7px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--secondary);
  font-size: 12px;
  font-weight: 600;
  background: white;
}

/* ==========================================================================
   Manpower Myth
   ========================================================================== */
.automation-guide-page .myth {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: clamp(70px, 11vw, 165px);
  align-items: center;
}

.automation-guide-page .myth-quote {
  margin: 0;
  font-size: clamp(38px, 5vw, 76px);
  line-height: 1.02;
  letter-spacing: -.055em;
  color: white;
}

.automation-guide-page .myth-quote span {
  color: var(--sky);
}

.automation-guide-page .myth-copy p {
  color: rgba(255, 255, 255, .72);
}

.automation-guide-page .role-list {
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid rgba(255, 255, 255, .18);
}

.automation-guide-page .role-list li {
  padding: 14px 0;
  border-bottom: 1px solid rgba(255, 255, 255, .14);
  font-size: 15px;
  color: rgba(255, 255, 255, .85);
}

/* ==========================================================================
   Comparison Table
   ========================================================================== */
.automation-guide-page .compare-wrap {
  margin-top: 70px;
  overflow-x: auto;
  border-top: 1px solid var(--line);
}

.automation-guide-page table {
  width: 100%;
  min-width: 980px;
  border-collapse: collapse;
  text-align: left;
}

.automation-guide-page th,
.automation-guide-page td {
  padding: 23px 22px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.automation-guide-page th {
  font-size: 12px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 700;
}

.automation-guide-page td:first-child {
  width: 20%;
  font-weight: 650;
  color: var(--navy);
}

.automation-guide-page td {
  color: var(--secondary);
  font-size: 15px;
  line-height: 1.5;
}

.automation-guide-page .table-note {
  margin: 20px 0 0;
  color: var(--muted);
  font-size: 13px;
}

/* ==========================================================================
   Selection Method (Logic Rows)
   ========================================================================== */
.automation-guide-page .logic {
  display: grid;
  grid-template-columns: .7fr 1.3fr;
  gap: clamp(60px, 9vw, 130px);
  align-items: start;
}

.automation-guide-page .logic-panel {
  position: sticky;
  top: 118px;
}

.automation-guide-page .logic-panel p {
  color: var(--secondary);
}

.automation-guide-page .logic-rows {
  counter-reset: logic;
}

.automation-guide-page .logic-row {
  counter-increment: logic;
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 24px;
  padding: 32px 0;
  border-top: 1px solid var(--line);
}

.automation-guide-page .logic-row:last-child {
  border-bottom: 1px solid var(--line);
}

.automation-guide-page .logic-row::before {
  content: "0" counter(logic);
  color: var(--blue);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .1em;
}

.automation-guide-page .logic-row h3 {
  margin: 0 0 10px;
  font-size: 22px;
  letter-spacing: -.025em;
  color: var(--navy);
}

.automation-guide-page .logic-row p {
  margin: 0;
  color: var(--secondary);
  font-size: 15px;
}

/* ==========================================================================
   Commercial Justification / Formula
   ========================================================================== */
.automation-guide-page .formula {
  margin-top: 66px;
  padding: clamp(36px, 5vw, 72px);
  background: var(--navy);
  color: white;
}

.automation-guide-page .formula-label {
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--sky);
  font-weight: 700;
}

.automation-guide-page .formula-expression {
  margin: 22px 0 0;
  font-size: clamp(23px, 3vw, 42px);
  line-height: 1.25;
  letter-spacing: -.035em;
  font-weight: 600;
}

.automation-guide-page .formula small {
  display: block;
  margin-top: 24px;
  color: rgba(255, 255, 255, .58);
  max-width: 760px;
  font-size: 14px;
  line-height: 1.6;
}

/* ==========================================================================
   PLC, SCADA and Control Scope
   ========================================================================== */
.automation-guide-page .controls-grid {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: clamp(58px, 9vw, 135px);
  align-items: start;
}

.automation-guide-page .controls-intro {
  position: sticky;
  top: 118px;
}

.automation-guide-page .control-list {
  border-top: 1px solid var(--line);
}

.automation-guide-page .control-item {
  display: grid;
  grid-template-columns: 1fr 1.35fr;
  gap: 30px;
  padding: 27px 0;
  border-bottom: 1px solid var(--line);
}

.automation-guide-page .control-item strong {
  font-size: 15px;
  color: var(--navy);
}

.automation-guide-page .control-item span {
  color: var(--secondary);
  font-size: 15px;
}

/* ==========================================================================
   Important Limitation Warning
   ========================================================================== */
.automation-guide-page .warning {
  padding: clamp(38px, 6vw, 80px);
  background: var(--silver);
  display: grid;
  grid-template-columns: .85fr 1.15fr;
  gap: clamp(50px, 9vw, 130px);
  align-items: center;
}

.automation-guide-page .warning h2 {
  margin: 0;
  font-size: clamp(34px, 4.2vw, 64px);
  line-height: 1.05;
  letter-spacing: -.05em;
  color: var(--navy);
}

.automation-guide-page .warning-copy p {
  margin: 0 0 18px;
  color: var(--secondary);
}

.automation-guide-page .warning-copy p:last-child {
  margin-bottom: 0;
}

/* ==========================================================================
   Quotation Review Mistakes
   ========================================================================== */
.automation-guide-page .mistakes {
  margin-top: 65px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  column-gap: 70px;
}

.automation-guide-page .mistake {
  display: grid;
  grid-template-columns: 45px 1fr;
  gap: 22px;
  padding: 26px 0;
  border-top: 1px solid var(--line);
}

.automation-guide-page .mistake-num {
  color: var(--blue);
  font-size: 12px;
  font-weight: 700;
}

.automation-guide-page .mistake p {
  margin: 0;
  color: var(--secondary);
  font-size: 15px;
}

/* ==========================================================================
   Engineering Before Equipment (Evidence)
   ========================================================================== */
.automation-guide-page .evidence {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(60px, 10vw, 150px);
  align-items: center;
}

.automation-guide-page .evidence-visual {
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, #dfe7ec, #f7f9fa);
  display: grid;
  place-items: center;
  padding: 55px;
  border-radius: 4px;
}

.automation-guide-page .evidence-visual img {
  width: 58%;
  filter: grayscale(.15);
  opacity: .75;
}

.automation-guide-page .evidence-points {
  margin-top: 35px;
}

.automation-guide-page .evidence-point {
  padding: 18px 0;
  border-top: 1px solid var(--line);
  font-size: 15px;
  color: var(--secondary);
}

.automation-guide-page .evidence-point:last-child {
  border-bottom: 1px solid var(--line);
}

/* ==========================================================================
   FAQ Section
   ========================================================================== */
.automation-guide-page .faq {
  max-width: 1000px;
  margin: 68px auto 0;
  border-top: 1px solid var(--line);
}

.automation-guide-page details {
  border-bottom: 1px solid var(--line);
}

.automation-guide-page summary {
  list-style: none;
  cursor: pointer;
  padding: 25px 54px 25px 0;
  position: relative;
  font-size: clamp(18px, 2vw, 23px);
  font-weight: 600;
  letter-spacing: -.02em;
  color: var(--navy);
}

.automation-guide-page summary::-webkit-details-marker {
  display: none;
}

.automation-guide-page summary::after {
  content: "+";
  position: absolute;
  right: 4px;
  top: 21px;
  color: var(--blue);
  font-size: 28px;
  font-weight: 400;
}

.automation-guide-page details[open] summary::after {
  content: "−";
}

.automation-guide-page .faq-answer {
  max-width: 800px;
  padding: 0 0 28px;
  color: var(--secondary);
  font-size: 16px;
  line-height: 1.65;
}

/* ==========================================================================
   Conversion Section
   ========================================================================== */
.automation-guide-page .conversion {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: clamp(70px, 11vw, 160px);
  align-items: end;
}

.automation-guide-page .conversion h2 {
  margin: 0;
  font-size: clamp(42px, 5.5vw, 84px);
  line-height: 1;
  letter-spacing: -.055em;
  color: white;
}

.automation-guide-page .conversion-aside p {
  color: rgba(255, 255, 255, .72);
}

.automation-guide-page .conversion-actions {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  margin-top: 30px;
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */
@media (max-width: 1050px) {
  .automation-guide-page .drivers {
    grid-template-columns: repeat(2, 1fr);
  }
  .automation-guide-page .driver:nth-child(3) {
    border-left: 0;
  }
  .automation-guide-page .driver:nth-child(n+3) {
    border-top: 1px solid var(--line);
  }
  .automation-guide-page .levels-head,
  .automation-guide-page .myth,
  .automation-guide-page .logic,
  .automation-guide-page .controls-grid,
  .automation-guide-page .warning,
  .automation-guide-page .evidence,
  .automation-guide-page .conversion {
    grid-template-columns: 1fr;
  }
  .automation-guide-page .level {
    grid-template-columns: 70px .7fr 1.3fr;
  }
  .automation-guide-page .logic-panel,
  .automation-guide-page .controls-intro {
    position: static;
  }
}

@media (max-width: 700px) {
  :root {
    --pad: 22px;
    --section: 92px;
  }
  .automation-guide-page .hero {
    min-height: 780px;
    align-items: start;
  }
  .automation-guide-page .hero-media img {
    object-position: 61% center;
  }
  .automation-guide-page .hero-media::after {
    background: linear-gradient(180deg, rgba(5, 18, 34, .25) 0%, rgba(5, 18, 34, .68) 36%, rgba(5, 18, 34, .96) 68%);
  }
  .automation-guide-page .hero-content {
    padding-top: 100px;
  }
  .automation-guide-page .hero-copy {
    padding-top: 180px;
  }
  .automation-guide-page .hero h1 {
    font-size: clamp(44px, 12vw, 64px);
  }
  .automation-guide-page .hero-actions {
    align-items: stretch;
    flex-direction: column;
  }
  .automation-guide-page .button {
    width: 100%;
  }
  .automation-guide-page .answer-grid {
    grid-template-columns: 1fr;
    gap: 42px;
  }
  .automation-guide-page .answer-aside {
    border-left: 0;
    border-top: 1px solid var(--line);
    padding: 28px 0 0;
  }
  .automation-guide-page .drivers {
    grid-template-columns: 1fr;
  }
  .automation-guide-page .driver,
  .automation-guide-page .driver + .driver {
    padding: 28px 0;
    border-left: 0;
    border-top: 1px solid var(--line);
  }
  .automation-guide-page .drivers .driver:first-child {
    border-top: 0;
  }
  .automation-guide-page .level {
    grid-template-columns: 44px 1fr;
    gap: 18px;
  }
  .automation-guide-page .level-content {
    grid-column: 2;
  }
  .automation-guide-page .mistakes {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .automation-guide-page .control-item {
    grid-template-columns: 1fr;
    gap: 8px;
  }
  .automation-guide-page .conversion-actions {
    flex-direction: column;
  }
  .automation-guide-page .display {
    font-size: clamp(42px, 13vw, 62px);
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}