﻿/* ============================================================
   DESIGN SYSTEM — netguruworld.com Advertorial
   Source: .stitch/DESIGN.md (Tech Editorial System)
   Color palette: Deep navy/slate dark mode
   Typography: Geist (editorial) + JetBrains Mono (labels)
   ============================================================ */

/* ── Google Fonts import is handled in <head> ── */

/* ── CSS Custom Properties (Design Tokens) ── */
:root {
  /* Surfaces */
  --surface:                #101415;
  --surface-dim:            #101415;
  --surface-bright:         #363a3b;
  --surface-container-lowest: #0b0f10;
  --surface-container-low:  #191c1e;
  --surface-container:      #1d2022;
  --surface-container-high: #272a2c;
  --surface-container-highest: #323537;
  --surface-variant:        #323537;

  /* On-surface */
  --on-surface:             #e0e3e5;
  --on-surface-variant:     #c6c6cd;
  --inverse-surface:        #e0e3e5;
  --inverse-on-surface:     #2d3133;

  /* Borders */
  --outline:                #909097;
  --outline-variant:        #45464d;

  /* Primary */
  --primary:                #482A7B;
  --on-primary:             #ffffff;
  --primary-container:      #0f172a;
  --on-primary-container:   #798098;

  /* Secondary */
  --secondary:              #8E967A;
  --on-secondary:           #ffffff;
  --secondary-container:    #00a6e0;
  --on-secondary-container: #00374d;

  /* Tertiary */
  --tertiary:               #b9c8de;

  /* Background */
  --background:             #101415;
  --on-background:          #e0e3e5;

  /* Spacing tokens */
  --stack-sm:    8px;
  --stack-md:   16px;
  --stack-lg:   32px;
  --section-gap: 80px;
  --gutter:      24px;
  --container-max: 720px;
  --margin-mobile: 20px;

  /* Border radius */
  --radius-sm:   0.125rem;
  --radius:      0.25rem;
  --radius-md:   0.375rem;
  --radius-lg:   0.5rem;
  --radius-xl:   0.75rem;
  --radius-full: 9999px;
}

/* ── Reset ── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background-color: var(--background);
  color: var(--on-surface);
  font-family: "Geist", system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: var(--secondary);
  text-decoration: underline;
  text-decoration-color: rgba(123, 208, 255, 0.4);
  text-underline-offset: 3px;
  transition: color 0.15s ease, opacity 0.15s ease;
}

a:hover {
  opacity: 0.85;
}

main {
  flex: 1;
}

/* ── Layout Utility ── */
.page-wrap {
  width: min(100% - calc(var(--margin-mobile) * 2), var(--container-max));
  margin-inline: auto;
}

/* ============================================================
   TOP BAR — "Advertorial" label only
   ============================================================ */
.top-bar {
  width: 100%;
  background-color: var(--surface-container-lowest);
  border-bottom: 1px solid var(--outline-variant);
  padding: 7px var(--gutter);
  text-align: center;
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--on-surface-variant);
}

/* ============================================================
   HEADER — Logo left, CTA button right (Flexbox)
   ============================================================ */
.site-header {
  width: 100%;
  background-color: rgba(16, 20, 21, 0.92);
  border-bottom: 1px solid var(--outline-variant);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: 14px var(--gutter);
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--stack-md);
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0;
}

.site-logo {
  width: 160px;
  height: auto;
  display: block;
}

/* Header CTA Button */
.header-cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 9px 20px;
  background-color: var(--primary);
  color: var(--on-primary);
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  border-radius: var(--radius);
  border: none;
  white-space: nowrap;
  transition: opacity 0.18s ease, transform 0.18s ease;
}

.header-cta-btn:hover {
  opacity: 0.88;
  transform: translateY(-1px);
}

/* ============================================================
   HERO SECTION
   ============================================================ */
.hero-section {
  padding: var(--section-gap) 0 var(--stack-lg);
}

.hero-wrap {
  /* uses .page-wrap */
}

/* Category Tag */
.category-tag {
  margin-bottom: var(--stack-md);
}

.tag-chip {
  display: inline-block;
  background-color: var(--primary-container);
  color: var(--tertiary);
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 5px 12px;
  border-radius: var(--radius);
  border: 1px solid var(--outline-variant);
}

/* Headline */
.article-headline {
  font-family: "Geist", system-ui, sans-serif;
  font-size: clamp(28px, 5vw, 40px);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--on-surface);
  margin-bottom: var(--stack-md);
}

/* Sub-headline / deck */
.article-deck {
  font-size: 20px;
  font-weight: 400;
  line-height: 1.7;
  color: var(--on-surface-variant);
  margin-bottom: var(--stack-lg);
}

/* Hero Image */
.hero-figure {
  margin-bottom: var(--stack-lg);
}

.hero-img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: var(--radius-lg);
  border: 1px solid var(--outline-variant);
  display: block;
}

/* Author / Meta Bar */
.article-meta-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--stack-sm);
  border-top: 1px solid var(--outline-variant);
  border-bottom: 1px solid var(--outline-variant);
  padding: var(--stack-sm) 0;
  font-size: 14px;
  line-height: 1.5;
  color: var(--on-surface-variant);
}

.meta-left {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.meta-author {
  font-weight: 500;
  color: var(--on-surface);
}

.meta-dot {
  color: var(--outline);
}

.meta-right {
  font-size: 14px;
  color: var(--on-surface-variant);
}

/* ============================================================
   ARTICLE BODY
   ============================================================ */
.article-body {
  padding: var(--section-gap) 0;
}

.article-wrap {
  /* uses .page-wrap */
}

/* Prose paragraphs */
.prose-block {
  margin-bottom: var(--section-gap);
}

.prose-block p {
  font-size: 16px;
  line-height: 1.7;
  color: var(--on-surface-variant);
}

.prose-block p + p {
  margin-top: var(--stack-md);
}

/* Content Image */
.content-figure {
  margin-bottom: var(--section-gap);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background-color: var(--surface-container-low);
  border: 1px solid var(--outline-variant);
}

.content-img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.content-caption {
  padding: var(--stack-md);
  font-size: 14px;
  line-height: 1.5;
  color: var(--on-surface-variant);
  text-align: center;
  border-top: 1px solid var(--outline-variant);
  font-style: italic;
}

/* Section Heading */
.section-heading {
  font-family: "Geist", system-ui, sans-serif;
  font-size: 24px;
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: -0.01em;
  color: var(--on-surface);
  margin-bottom: var(--stack-md);
  text-align: center;
}

/* ============================================================
   BENEFITS GRID (Bento layout)
   ============================================================ */
.benefits-section {
  margin-bottom: var(--section-gap);
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--stack-md);
}

.benefit-card {
  background-color: var(--surface-container);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-lg);
  padding: var(--stack-md);
  transition: border-color 0.2s ease;
}

.benefit-card:hover {
  border-color: var(--outline);
}

.benefit-card--wide {
  grid-column: 1 / -1;
  background-color: var(--primary-container);
  border-color: var(--primary);
  display: flex;
  align-items: flex-start;
  gap: var(--stack-md);
}

.benefit-card-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: var(--stack-sm);
}

.benefit-card-title {
  font-family: "Geist", system-ui, sans-serif;
  font-size: 15px;
  font-weight: 600;
  color: var(--on-surface);
  line-height: 1.3;
}

.benefit-card p {
  font-size: 14px;
  line-height: 1.5;
  color: var(--on-surface-variant);
}

.benefit-card--wide p {
  color: var(--on-primary-container);
}

/* Benefit Icon */
.benefit-icon-wrap {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  background-color: rgba(41, 171, 133, 0.12);
  color: var(--secondary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.benefit-icon-wrap svg {
  width: 16px;
  height: 16px;
}

.benefit-icon-wrap--primary {
  background-color: rgba(41, 171, 133, 0.15);
  color: var(--primary);
  margin-top: 2px;
}

/* Wide card header layout */
.benefit-card--wide .benefit-card-header {
  align-items: flex-start;
  flex-direction: row;
  gap: var(--stack-md);
  margin-bottom: 4px;
}

/* ============================================================
   HOW TO GET STARTED — Steps
   ============================================================ */
.steps-section {
  background-color: var(--surface-container-low);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-lg);
  padding: var(--stack-lg);
  margin-bottom: var(--section-gap);
}

.steps-intro {
  font-size: 16px;
  color: var(--on-surface-variant);
  text-align: center;
  margin-bottom: var(--stack-lg);
}

.steps-list {
  display: flex;
  flex-direction: column;
  gap: var(--stack-lg);
  margin-bottom: var(--stack-lg);
}

.step-item {
  display: flex;
  align-items: flex-start;
  gap: var(--stack-md);
}

.step-number {
  flex-shrink: 0;
  width: 34px;
  height: 34px;
  border-radius: var(--radius-full);
  background-color: var(--surface-variant);
  color: var(--on-surface);
  border: 1px solid var(--outline);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
  line-height: 1;
}

.step-number--active {
  background-color: var(--primary);
  color: var(--on-primary);
  border-color: var(--primary);
}

.step-title {
  font-family: "Geist", system-ui, sans-serif;
  font-size: 15px;
  font-weight: 600;
  color: var(--on-surface);
  margin-bottom: 4px;
}

.step-content p {
  font-size: 14px;
  color: var(--on-surface-variant);
  line-height: 1.5;
}

.steps-note {
  font-size: 14px;
  color: var(--on-surface-variant);
  text-align: center;
  line-height: 1.6;
}

/* ============================================================
   CTA SECTION — Full width block
   ============================================================ */
.cta-section {
  width: 100%;
  background-color: var(--surface-container-low);
  border-top: 1px solid var(--outline-variant);
  border-bottom: 1px solid var(--outline-variant);
  padding: var(--section-gap) var(--margin-mobile);
  text-align: center;
}

.cta-inner {
  max-width: var(--container-max);
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--stack-lg);
}

/* Main CTA Button */
.cta-main-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 18px 32px;
  background-color: var(--primary);
  color: var(--on-primary);
  font-family: "JetBrains Mono", monospace;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  border-radius: var(--radius);
  border: 1px solid transparent;
  transition: background-color 0.18s ease, color 0.18s ease, border-color 0.18s ease, transform 0.18s ease;
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.4);
}

.cta-main-btn:hover {
  background-color: #351f5c; /* Slightly darker green */
  color: #ffffff;
  border-color: var(--outline-variant);
  transform: translateY(-2px);
  opacity: 1;
}

/* CTA Logo Link with required outline */
.cta-logo-link {
  display: inline-block;
  border-radius: var(--radius-lg);
  text-decoration: none;
  transition: transform 0.18s ease, opacity 0.18s ease;
}

.cta-logo-link:hover {
  transform: translateY(-2px);
  opacity: 1;
}

/* CTA Logo Image — required visible CSS outline */
.cta-logo-img {
  width: min(260px, 70vw);
  height: auto;
  border-radius: var(--radius-lg);
  outline: 3px solid var(--secondary);
  outline-offset: 4px;
  padding: 8px;
  background-color: #ffffff;
}

/* ============================================================
   DISCLAIMER — directly below CTA
   ============================================================ */
.disclaimer-section {
  padding: var(--stack-lg) 0 var(--section-gap);
}

.disclaimer-wrap {
  /* uses .page-wrap */
}

.disclaimer-text {
  font-size: 12px;
  line-height: 1.65;
  color: var(--on-surface-variant);
  text-align: center;
}

.disclaimer-text a {
  color: var(--secondary);
  font-size: inherit;
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background-color: var(--surface-container-lowest);
  border-top: 1px solid var(--outline-variant);
  padding: var(--section-gap) 0 var(--stack-lg);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--stack-lg);
  text-align: center;
}

/* Footer Navigation */
.footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 24px;
}

.footer-nav a {
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--on-surface-variant);
  text-decoration: none;
  transition: color 0.15s ease;
}

.footer-nav a:hover {
  color: var(--secondary);
  opacity: 1;
}

/* Footer Contact Details */
.footer-contact {
  font-size: 13px;
  color: var(--on-surface-variant);
  line-height: 1.7;
}

.footer-contact-label {
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--tertiary);
  margin-bottom: 6px;
}

.footer-contact a {
  color: var(--on-surface-variant);
  text-decoration: none;
}

.footer-contact a:hover {
  color: var(--secondary);
  opacity: 1;
}

/* Footer Copyright */
.footer-copy {
  font-size: 12px;
  color: var(--outline);
  font-family: "Geist", system-ui, sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ============================================================
   RESPONSIVE — Mobile
   ============================================================ */
@media (max-width: 720px) {
  .page-wrap {
    width: min(100% - 32px, var(--container-max));
  }

  .hero-section {
    padding: 40px 0 var(--stack-md);
  }

  .article-deck {
    font-size: 17px;
  }

  .article-meta-bar {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }

  .benefits-grid {
    grid-template-columns: 1fr;
  }

  .benefit-card--wide {
    flex-direction: column;
    gap: var(--stack-sm);
  }

  .steps-section {
    padding: var(--stack-md);
  }

  .cta-section {
    padding: 48px var(--margin-mobile);
  }

  .cta-main-btn {
    font-size: 11px;
    padding: 15px 20px;
  }

  .site-logo {
    width: 130px;
  }

  .header-cta-btn {
    font-size: 10px;
    padding: 8px 14px;
    letter-spacing: 0.07em;
  }
}