:root {
  --color-bg-dark: #16181d;
  --color-card-dark: #20242c;
  --color-card-hover: #292d37;
  --color-warm-white: #f8f7f4;
  --color-surface-light: #ffffff;
  --color-text-main: #1f232b;
  --color-text-muted: #626978;
  --color-text-light: #e2e8f0;
  --color-text-light-muted: #94a3b8;
  
  --color-orange: #ff6b35;
  --color-orange-hover: #e85a26;
  --color-mint: #2ec4b6;
  --color-mint-light: #e6fffa;
  --color-lavender: #8b5cf6;
  --color-lavender-soft: #f3e8ff;
  --color-border: #e2e8f0;
  --color-border-dark: #2e3440;

  --font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 10px 25px -5px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 20px 35px -10px rgba(0, 0, 0, 0.12);
  --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-family);
  background-color: var(--color-warm-white);
  color: var(--color-text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

a {
  color: inherit;
  text-decoration: none;
}

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

.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 20px;
}

/* --- SLIM RESPONSIVE HEADER --- */
.site-header {
  background: var(--color-bg-dark);
  color: var(--color-text-light);
  border-bottom: 1px solid var(--color-border-dark);
  position: relative;
  z-index: 100;
  padding: 8px 0;
  width: 100%;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 52px;
  gap: 12px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 800;
  font-size: 1.15rem;
  color: var(--color-surface-light);
  letter-spacing: -0.02em;
  text-decoration: none;
  white-space: nowrap;
  min-width: 0;
  flex-shrink: 1;
}

.brand-logo svg {
  width: 26px;
  height: 26px;
  min-width: 26px;
  color: var(--color-orange);
  flex-shrink: 0;
}

.brand-logo span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.brand-badge {
  background: rgba(255, 107, 53, 0.15);
  color: var(--color-orange);
  font-size: 0.7rem;
  padding: 2px 7px;
  border-radius: var(--radius-full);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  flex-shrink: 0;
  display: inline-block;
}

.nav-desktop {
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text-light-muted);
  transition: var(--transition);
  position: relative;
  white-space: nowrap;
}

.nav-link:hover, .nav-link.active {
  color: var(--color-surface-light);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--color-orange);
  border-radius: 2px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.btn-header {
  font-size: 0.85rem;
  font-weight: 700;
  padding: 8px 16px;
  border-radius: var(--radius-full);
  background: var(--color-orange);
  color: #fff;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: none;
  cursor: pointer;
  white-space: nowrap;
  text-decoration: none;
}

.btn-header:hover {
  background: var(--color-orange-hover);
  transform: translateY(-1px);
}

.mobile-toggle {
  display: none;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-sm);
  color: var(--color-text-light);
  cursor: pointer;
  padding: 6px;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  min-width: 40px;
  min-height: 40px;
}

.mobile-toggle:hover,
.mobile-toggle:focus-visible {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--color-orange);
  outline: none;
}

/* Mobile Nav Drawer */
.mobile-nav {
  display: none;
  background: var(--color-bg-dark);
  border-bottom: 1px solid var(--color-border-dark);
  padding: 12px 20px 20px;
  flex-direction: column;
  gap: 4px;
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.35);
}

.mobile-nav.open {
  display: flex;
  animation: headerNavSlideDown 0.25s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes headerNavSlideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.mobile-nav .nav-link {
  padding: 12px 14px;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--color-text-light-muted);
  border-bottom: none;
}

.mobile-nav .nav-link:hover,
.mobile-nav .nav-link.active {
  background: rgba(255, 255, 255, 0.08);
  color: var(--color-surface-light);
}

.mobile-nav .nav-link.active {
  color: var(--color-orange);
  font-weight: 700;
}

.mobile-nav .nav-link.active::after {
  content: '•';
  color: var(--color-orange);
  font-size: 1.2rem;
  line-height: 1;
}

/* --- BADGES & TAGS --- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.badge-beginner {
  background: #e6fffa;
  color: #0d9488;
}

.badge-intermediate {
  background: #fef3c7;
  color: #d97706;
}

.badge-hardware {
  background: #f3e8ff;
  color: #7c3aed;
}

.badge-mint {
  background: rgba(46, 196, 182, 0.15);
  color: var(--color-mint);
}

/* --- HERO SECTION --- */
.hero-section {
  background: linear-gradient(135deg, var(--color-bg-dark) 0%, #111317 100%);
  color: var(--color-text-light);
  padding: 60px 0 70px;
  position: relative;
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(255,107,53,0.15) 0%, rgba(0,0,0,0) 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: center;
}

.hero-content h1 {
  font-size: 2.75rem;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 16px;
  letter-spacing: -0.03em;
}

.hero-content h1 span {
  color: var(--color-orange);
}

.hero-sub {
  font-size: 1.1rem;
  color: var(--color-text-light-muted);
  margin-bottom: 28px;
  max-width: 540px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.btn-primary {
  background: var(--color-orange);
  color: #fff;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 0.95rem;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
  box-shadow: 0 4px 15px rgba(255, 107, 53, 0.3);
}

.btn-primary:hover {
  background: var(--color-orange-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 107, 53, 0.4);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.08);
  color: var(--color-text-light);
  padding: 12px 24px;
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 0.95rem;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  transition: var(--transition);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.15);
  transform: translateY(-2px);
}

.hero-card-preview {
  background: var(--color-card-dark);
  border: 1px solid var(--color-border-dark);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-lg);
}

.hero-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.hero-preview-img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-radius: var(--radius-md);
  margin-bottom: 16px;
}

/* --- STATS BAR --- */
.stats-bar {
  background: var(--color-surface-light);
  border-bottom: 1px solid var(--color-border);
  padding: 24px 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  text-align: center;
}

.stat-item h3 {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--color-orange);
}

.stat-item p {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  font-weight: 600;
}

/* --- SECTION GENERAL --- */
.section-padding {
  padding: 64px 0;
}

.section-title-wrap {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 44px;
}

.section-tag {
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--color-mint);
  letter-spacing: 0.1em;
  margin-bottom: 8px;
  display: block;
}

.section-title {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--color-text-main);
  margin-bottom: 12px;
}

.section-desc {
  font-size: 1rem;
  color: var(--color-text-muted);
}

/* --- CARDS & GRID --- */
.guides-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 28px;
}

.guide-card {
  background: var(--color-surface-light);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
}

.guide-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: rgba(255, 107, 53, 0.3);
}

.guide-card-img-wrap {
  position: relative;
  height: 190px;
  overflow: hidden;
  background: #edf2f7;
}

.guide-card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.guide-card:hover .guide-card-img {
  transform: scale(1.04);
}

.guide-card-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 2;
}

.guide-card-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.guide-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-bottom: 8px;
}

.guide-card-title {
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: 10px;
  color: var(--color-text-main);
}

.guide-card-desc {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: 20px;
  flex-grow: 1;
}

.guide-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  border-top: 1px solid var(--color-border);
}

.read-btn {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--color-orange);
  display: flex;
  align-items: center;
  gap: 4px;
  transition: var(--transition);
}

.guide-card:hover .read-btn {
  gap: 8px;
}

/* --- CATEGORIES PANEL --- */
.categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.cat-card {
  background: var(--color-surface-light);
  padding: 24px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.cat-card:hover {
  background: #fff;
  border-color: var(--color-mint);
  transform: translateY(-3px);
  box-shadow: var(--shadow-sm);
}

.cat-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: var(--color-mint-light);
  color: var(--color-mint);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 4px;
}

.cat-icon.lavender {
  background: var(--color-lavender-soft);
  color: var(--color-lavender);
}

.cat-icon.orange {
  background: rgba(255,107,53,0.1);
  color: var(--color-orange);
}

.cat-title {
  font-size: 1.1rem;
  font-weight: 700;
}

.cat-desc {
  font-size: 0.88rem;
  color: var(--color-text-muted);
}

/* --- STEP BY STEP HIGHLIGHT --- */
.step-banner {
  background: var(--color-bg-dark);
  color: var(--color-text-light);
  border-radius: var(--radius-lg);
  padding: 40px;
  margin: 40px 0;
}

.steps-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
  margin-top: 30px;
}

.step-item {
  position: relative;
  background: var(--color-card-dark);
  padding: 20px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-dark);
}

.step-number {
  font-size: 2rem;
  font-weight: 900;
  color: var(--color-orange);
  line-height: 1;
  margin-bottom: 8px;
}

.step-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.step-desc {
  font-size: 0.85rem;
  color: var(--color-text-light-muted);
}

/* --- SEARCH & FILTER BAR --- */
.search-filter-box {
  background: var(--color-surface-light);
  padding: 20px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  margin-bottom: 32px;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
}

.search-input-wrap {
  position: relative;
  flex: 1;
  min-width: 260px;
}

.search-input-wrap input {
  width: 100%;
  padding: 12px 16px 12px 42px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.95rem;
  outline: none;
  transition: var(--transition);
}

.search-input-wrap input:focus {
  border-color: var(--color-orange);
  box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.15);
}

.search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-muted);
}

.filter-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 8px 16px;
  border-radius: var(--radius-full);
  background: var(--color-warm-white);
  border: 1px solid var(--color-border);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-muted);
  cursor: pointer;
  transition: var(--transition);
}

.filter-btn.active, .filter-btn:hover {
  background: var(--color-bg-dark);
  color: #fff;
  border-color: var(--color-bg-dark);
}

/* --- GUIDE DETAIL PAGE STYLES --- */
.guide-header-detail {
  background: var(--color-bg-dark);
  color: var(--color-text-light);
  padding: 50px 0 40px;
}

.guide-detail-grid {
  display: grid;
  grid-template-columns: 2.5fr 1fr;
  gap: 40px;
  margin-top: 40px;
}

.article-content {
  background: var(--color-surface-light);
  padding: 36px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.article-content h2 {
  font-size: 1.5rem;
  margin: 28px 0 14px;
  font-weight: 800;
}

.article-content p {
  margin-bottom: 16px;
  color: #334155;
  font-size: 1.02rem;
  line-height: 1.7;
}

.article-content ul, .article-content ol {
  margin: 0 0 20px 20px;
  color: #334155;
}

.article-content li {
  margin-bottom: 8px;
}

.tip-box {
  background: var(--color-mint-light);
  border-left: 4px solid var(--color-mint);
  padding: 18px;
  border-radius: var(--radius-sm);
  margin: 24px 0;
  font-size: 0.95rem;
}

.tip-box-title {
  font-weight: 800;
  color: #0d9488;
  margin-bottom: 4px;
}

.sidebar-card {
  background: var(--color-surface-light);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  padding: 24px;
  margin-bottom: 24px;
}

.sidebar-title {
  font-size: 1.1rem;
  font-weight: 800;
  margin-bottom: 16px;
  border-bottom: 2px solid var(--color-warm-white);
  padding-bottom: 8px;
}

/* --- CONTACT & LEGAL PAGES --- */
.page-header {
  background: var(--color-bg-dark);
  color: var(--color-text-light);
  padding: 50px 0;
  text-align: center;
}

.page-header h1 {
  font-size: 2.25rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.legal-content {
  background: var(--color-surface-light);
  padding: 40px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  margin: 40px 0;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.legal-content h2 {
  font-size: 1.35rem;
  margin: 24px 0 12px;
  color: var(--color-text-main);
  border-bottom: 1px solid #edf2f7;
  padding-bottom: 6px;
}

.legal-content p, .legal-content ul {
  font-size: 0.95rem;
  color: #475569;
  margin-bottom: 14px;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin: 40px 0;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-weight: 700;
  font-size: 0.88rem;
  margin-bottom: 6px;
}

.form-group input, .form-group textarea, .form-group select {
  width: 100%;
  padding: 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.95rem;
}

.form-group input:focus, .form-group textarea:focus {
  border-color: var(--color-orange);
  outline: none;
}

/* --- COOKIE BANNER --- */
.cookie-banner {
  position: fixed;
  bottom: 20px;
  right: 20px;
  left: 20px;
  max-width: 480px;
  margin-left: auto;
  background: var(--color-bg-dark);
  color: var(--color-text-light);
  padding: 20px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-dark);
  box-shadow: 0 15px 30px rgba(0,0,0,0.3);
  z-index: 9999;
  display: none;
  animation: slideUp 0.3s ease-out;
}

@keyframes slideUp {
  from { transform: translateY(100px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.cookie-actions {
  display: flex;
  gap: 10px;
  margin-top: 14px;
}

.btn-cookie-accept {
  background: var(--color-orange);
  color: #fff;
  border: none;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  cursor: pointer;
  font-size: 0.85rem;
}

.btn-cookie-decline {
  background: transparent;
  color: var(--color-text-light-muted);
  border: 1px solid var(--color-border-dark);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  cursor: pointer;
  font-size: 0.85rem;
}

/* --- MANDATORY UNIVERSAL FOOTER --- */
.site-footer {
  background: var(--color-bg-dark);
  color: var(--color-text-light);
  border-top: 1px solid var(--color-border-dark);
  margin-top: auto;
  padding: 50px 0 24px;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand p {
  font-size: 0.88rem;
  color: var(--color-text-light-muted);
  margin-top: 12px;
  max-width: 320px;
}

.footer-title {
  font-size: 0.95rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 16px;
  color: var(--color-surface-light);
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  font-size: 0.88rem;
  color: var(--color-text-light-muted);
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--color-orange);
}

.footer-address {
  font-size: 0.88rem;
  color: var(--color-text-light-muted);
  line-height: 1.6;
}

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid var(--color-border-dark);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.82rem;
  color: var(--color-text-light-muted);
  flex-wrap: wrap;
  gap: 12px;
}

/* RESPONSIVE DESIGN */
@media (max-width: 992px) {
  .nav-desktop {
    display: none;
  }
  .mobile-toggle {
    display: inline-flex;
  }
  .hero-grid {
    grid-template-columns: 1fr;
  }
  .guide-detail-grid {
    grid-template-columns: 1fr;
  }
  .footer-top {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .contact-grid {
    grid-template-columns: 1fr;
  }
  .stats-grid {
    grid-template-columns: 1fr 1fr;
  }
  .footer-top {
    grid-template-columns: 1fr;
  }
  .hero-content h1 {
    font-size: 2.1rem;
  }
}

@media (max-width: 576px) {
  .brand-badge {
    display: none;
  }
  .brand-logo {
    font-size: 1.05rem;
  }
  .btn-header {
    padding: 6px 12px;
    font-size: 0.8rem;
  }
}

@media (max-width: 480px) {
  .btn-header {
    display: none; /* Keep header minimal and clear on small phone screens */
  }
  .brand-logo {
    font-size: 0.98rem;
  }
  .container {
    padding: 0 14px;
  }
}

@media (max-width: 340px) {
  .brand-logo {
    font-size: 0.88rem;
  }
  .brand-logo svg {
    width: 22px;
    height: 22px;
    min-width: 22px;
  }
}