/* ==========================================================================
   site-06 — Editorial Magazine theme
   Typography báo in: Playfair Display (heading) + Source Serif 4 (body).
   Bảng màu đen/trắng/kem, rất ít màu, drop cap, cột báo, số trang section.
   ========================================================================== */

:root {
  --ink: #171412;
  --ink-soft: #3a3532;
  --paper: #faf6ee;
  --paper-alt: #f1ebdd;
  --rule: #c9c0ab;
  --accent: #7a1e1e; /* đỏ đô cổ điển, dùng rất tiết chế */
  --accent-ink: #ffffff;
  --serif-display: "Playfair Display", Georgia, "Times New Roman", serif;
  --serif-body: "Source Serif 4", Georgia, "Times New Roman", serif;
  --col-max: 1180px;

  /* Override buy-modal cho hợp tông báo in */
  --buy-modal-accent: var(--accent);
  --buy-modal-accent-text: #ffffff;
  --buy-modal-bg: var(--paper);
  --buy-modal-text: var(--ink);
  --buy-modal-muted: #6b6258;
  --buy-modal-border: var(--rule);
  --buy-modal-radius: 4px;
  --buy-modal-font: var(--serif-body);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif-body);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
}

a {
  color: var(--accent);
}

button {
  font-family: inherit;
}

/* ---------- Masthead (đầu báo) ---------- */

.masthead-bar {
  background: var(--ink);
  color: var(--paper);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.masthead-bar-inner {
  max-width: var(--col-max);
  margin: 0 auto;
  padding: 8px 24px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
}

.masthead {
  max-width: var(--col-max);
  margin: 0 auto;
  padding: 40px 24px 24px;
  text-align: center;
  border-bottom: 3px double var(--ink);
}

.masthead-title {
  font-family: var(--serif-display);
  font-weight: 900;
  font-size: clamp(2.6rem, 7vw, 5.2rem);
  letter-spacing: -0.01em;
  margin: 0 0 6px;
}

.masthead-sub {
  font-style: italic;
  color: var(--ink-soft);
  margin: 0 0 20px;
  font-size: 1rem;
}

.masthead-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 28px;
  padding-top: 14px;
  border-top: 1px solid var(--rule);
  font-family: var(--serif-display);
  font-size: 0.95rem;
}

.masthead-nav a {
  color: var(--ink);
  text-decoration: none;
  font-weight: 600;
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
  transition: border-color 0.15s ease, color 0.15s ease;
}

.masthead-nav a:hover {
  color: var(--accent);
  border-color: var(--accent);
}

/* ---------- Section chung ---------- */

main {
  max-width: var(--col-max);
  margin: 0 auto;
}

.section {
  position: relative;
  padding: 64px 24px;
  border-bottom: 1px solid var(--rule);
}

.section-invert {
  background: var(--paper-alt);
}

.section-cta {
  text-align: center;
  background: var(--ink);
  color: var(--paper);
}

.section-cta .pull-quote,
.section-cta .final-cta-contact {
  color: var(--paper);
}

.section-number {
  display: inline-block;
  font-family: var(--serif-display);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  color: var(--ink-soft);
  border: 1px solid var(--rule);
  padding: 4px 10px;
  margin-bottom: 20px;
}

.section-cta .section-number {
  color: var(--paper);
  border-color: rgba(250, 246, 238, 0.35);
}

.section-title {
  font-family: var(--serif-display);
  font-weight: 700;
  font-size: clamp(1.7rem, 4vw, 2.6rem);
  margin: 0 0 24px;
  line-height: 1.2;
}

.kicker {
  font-family: var(--serif-display);
  font-style: italic;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.85rem;
  margin: 0 0 12px;
}

.section-lede {
  max-width: 760px;
}

/* Drop cap cho đoạn mở đầu */
.drop-cap-wrap::first-letter {
  font-family: var(--serif-display);
  font-size: 4.2rem;
  font-weight: 900;
  float: left;
  line-height: 0.8;
  padding: 6px 10px 0 0;
  color: var(--accent);
}

/* ---------- Hero ---------- */

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.hero-headline {
  font-family: var(--serif-display);
  font-weight: 900;
  font-size: clamp(2rem, 5vw, 3.4rem);
  line-height: 1.08;
  margin: 8px 0 18px;
}

.hero-dek {
  font-size: 1.15rem;
  color: var(--ink-soft);
  margin: 0 0 24px;
  max-width: 60ch;
}

.pull-quote {
  border-left: 3px solid var(--accent);
  margin: 0 0 28px;
  padding: 4px 0 4px 20px;
}

.pull-quote p {
  font-family: var(--serif-display);
  font-style: italic;
  font-size: 1.3rem;
  margin: 0;
  line-height: 1.4;
}

.pull-quote-large {
  border-left: none;
  border-top: 1px solid rgba(250, 246, 238, 0.3);
  border-bottom: 1px solid rgba(250, 246, 238, 0.3);
  padding: 24px 0;
  max-width: 760px;
  margin: 0 auto 32px;
  text-align: center;
}

.pull-quote-large p {
  font-size: clamp(1.4rem, 3.2vw, 2rem);
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.hero-ctas-center {
  justify-content: center;
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-block;
  font-family: var(--serif-display);
  font-weight: 700;
  font-size: 1rem;
  padding: 14px 30px;
  border: 1px solid var(--ink);
  cursor: pointer;
  text-decoration: none;
  letter-spacing: 0.02em;
  transition: transform 0.12s ease, background 0.15s ease, color 0.15s ease;
  background: transparent;
  color: var(--ink);
}

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-ink);
}

.btn-primary:hover {
  transform: translateY(-2px);
  background: #601616;
  border-color: #601616;
}

.btn-outline:hover {
  transform: translateY(-2px);
  background: var(--ink);
  color: var(--paper);
}

.btn-large {
  font-size: 1.1rem;
  padding: 16px 40px;
}

.section-cta .btn-outline,
.section-cta .btn:not(.btn-primary) {
  border-color: var(--paper);
  color: var(--paper);
}

/* ---------- Mock browser (minh hoạ đen trắng) ---------- */

.mock-browser {
  margin: 0;
  border: 1px solid var(--ink);
  background: #fff;
  filter: grayscale(1);
  box-shadow: 8px 8px 0 var(--ink);
}

.mock-browser figcaption {
  font-family: var(--serif-display);
  font-style: italic;
  font-size: 0.8rem;
  padding: 8px 14px 0;
  color: var(--ink-soft);
}

.mock-browser-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--rule);
  margin-top: 6px;
}

.mock-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  border: 1px solid var(--ink);
  background: #d8d3c6;
}

.mock-url {
  margin-left: 10px;
  font-family: monospace;
  font-size: 0.75rem;
  color: var(--ink-soft);
  border: 1px solid var(--rule);
  padding: 2px 8px;
  flex: 1;
}

.mock-browser-body {
  padding: 14px;
}

.mock-toolbar {
  display: flex;
  justify-content: space-between;
  font-family: var(--serif-display);
  font-weight: 700;
  font-size: 0.9rem;
  margin-bottom: 10px;
  padding-bottom: 8px;
  border-bottom: 1px dashed var(--rule);
}

.mock-toolbar-status {
  font-style: italic;
  color: var(--ink-soft);
}

.mock-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.82rem;
}

.mock-table th,
.mock-table td {
  border-bottom: 1px solid var(--rule);
  padding: 6px 6px;
  text-align: left;
}

.mock-table th {
  font-family: var(--serif-display);
  text-transform: uppercase;
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
}

.mock-footer {
  display: flex;
  justify-content: space-between;
  font-size: 0.78rem;
  color: var(--ink-soft);
  margin-top: 10px;
  padding-top: 8px;
  border-top: 1px solid var(--rule);
}

/* ---------- Features — cột báo ---------- */

.feature-columns {
  columns: 3 320px;
  column-gap: 40px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.feature-item {
  break-inside: avoid;
  margin: 0 0 28px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--rule);
}

.feature-item-num {
  font-family: var(--serif-display);
  font-weight: 900;
  font-size: 1.1rem;
  color: var(--accent);
  margin-right: 6px;
}

.feature-item h3 {
  font-family: var(--serif-display);
  font-size: 1.15rem;
  margin: 6px 0 8px;
  display: inline;
}

.feature-item p {
  margin: 8px 0 0;
  color: var(--ink-soft);
  font-size: 0.96rem;
}

.feature-icon {
  font-size: 1.1rem;
  margin-right: 4px;
}

/* ---------- Steps (quy trình) ---------- */

.steps-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}

.step {
  padding: 0 20px;
  border-left: 1px solid var(--rule);
}

.step:first-child {
  border-left: none;
  padding-left: 0;
}

.step-num {
  display: block;
  font-family: var(--serif-display);
  font-style: italic;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 8px;
}

.step h3 {
  font-family: var(--serif-display);
  font-size: 1.2rem;
  margin: 0 0 10px;
}

.step p {
  color: var(--ink-soft);
  font-size: 0.95rem;
  margin: 0;
}

/* ---------- Use cases — phỏng vấn ---------- */

.interview-list {
  display: grid;
  gap: 0;
}

.interview-item {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 28px;
  padding: 24px 0;
  border-bottom: 1px solid var(--rule);
}

.interview-item:first-child {
  border-top: 1px solid var(--rule);
}

.interview-role {
  font-family: var(--serif-display);
  font-weight: 700;
  font-size: 1.1rem;
  line-height: 1.35;
}

.interview-role::before {
  content: "\201C";
  color: var(--accent);
  font-size: 1.6rem;
  display: block;
  line-height: 0.6;
  margin-bottom: 6px;
}

.interview-answer {
  margin: 0;
  font-style: italic;
  color: var(--ink-soft);
  font-size: 1.02rem;
}

/* ---------- Pricing ---------- */

.pricing-box {
  max-width: 520px;
  margin: 0 auto;
  text-align: center;
  border: 1px solid var(--ink);
  padding: 40px 32px;
  background: var(--paper);
}

.pricing-eyebrow {
  font-family: var(--serif-display);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.85rem;
  color: var(--ink-soft);
  margin: 0 0 10px;
}

.pricing-amount {
  font-family: var(--serif-display);
  font-weight: 900;
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  color: var(--accent);
  margin: 0 0 12px;
}

.pricing-note {
  color: var(--ink-soft);
  margin: 0 0 24px;
}

/* ---------- FAQ ---------- */

.faq-list {
  display: grid;
  gap: 0;
  max-width: 820px;
}

.faq-item {
  padding: 22px 0;
  border-bottom: 1px solid var(--rule);
}

.faq-item:first-child {
  border-top: 1px solid var(--rule);
}

.faq-q {
  font-family: var(--serif-display);
  font-weight: 700;
  font-size: 1.1rem;
  margin: 0 0 10px;
}

.faq-a {
  margin: 0;
  color: var(--ink-soft);
}

.faq-a em {
  color: var(--ink);
  font-style: italic;
}

/* ---------- CTA cuối trang ---------- */

.final-cta-contact {
  margin-top: 20px;
  font-size: 0.95rem;
  color: var(--ink-soft);
}

/* ---------- Footer ---------- */

.site-footer {
  max-width: var(--col-max);
  margin: 0 auto;
  padding: 32px 24px 48px;
}

.footer-rule {
  border-top: 3px double var(--ink);
  margin-bottom: 24px;
}

.footer-disclaimer {
  font-size: 0.85rem;
  font-style: italic;
  color: var(--ink-soft);
  max-width: 900px;
  line-height: 1.6;
}

.footer-meta {
  font-size: 0.78rem;
  color: var(--ink-soft);
  margin-top: 16px;
}

/* ---------- Responsive ---------- */

@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }

  .feature-columns {
    columns: 1;
  }

  .steps-list {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .step {
    border-left: none;
    padding-left: 0;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--rule);
  }

  .step:last-child {
    border-bottom: none;
  }

  .interview-item {
    grid-template-columns: 1fr;
    gap: 10px;
  }
}

@media (max-width: 560px) {
  .section {
    padding: 44px 18px;
  }

  .masthead {
    padding: 28px 18px 18px;
  }

  .masthead-nav {
    gap: 16px;
    font-size: 0.85rem;
  }

  .hero-ctas {
    flex-direction: column;
  }

  .btn {
    text-align: center;
  }
}