/* dogalgazadana.com.tr — Mat-Tek Mühendislik niş sitesi
   Custom CSS — Tailwind CDN ile beraber kullanılır */

:root {
  --gas-blue: #0073B7;
  --gas-blue-dark: #005a8f;
  --gas-blue-light: #2a8fd0;
  --flame: #FF6B35;
  --flame-dark: #e55a26;
  --bg-light: #F8FAFC;
  --bg-white: #FFFFFF;
  --ink: #1A2332;
  --ink-soft: #2d3a4a;
  --muted: #5B6B7B;
  --line: #E2E8F0;
  --line-strong: #CBD5E1;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.05);
  --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 12px 32px rgba(15, 23, 42, 0.12);
  --radius: 14px;
  --radius-lg: 22px;
  --container: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 17px;
  line-height: 1.7;
  color: var(--ink);
  background: var(--bg-white);
  -webkit-font-smoothing: antialiased;
  margin: 0;
}

a {
  color: var(--gas-blue);
  text-decoration: none;
  transition: color 0.2s ease;
}
a:hover { color: var(--gas-blue-dark); }

h1, h2, h3, h4 {
  color: var(--ink);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin: 0 0 0.6em;
}
h1 { font-size: clamp(2rem, 4.5vw, 3.4rem); }
h2 { font-size: clamp(1.6rem, 3.2vw, 2.4rem); }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.05rem; }

p { margin: 0 0 1em; color: var(--ink-soft); }

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

/* Container */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* HEADER */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--line);
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  gap: 24px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--ink);
}
.brand__icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--gas-blue) 0%, var(--gas-blue-dark) 100%);
  border-radius: 12px;
  flex-shrink: 0;
}
.brand__icon svg { width: 26px; height: 26px; color: var(--flame); }
.brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}
.brand__name {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.brand__tag {
  font-size: 0.72rem;
  color: var(--muted);
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.nav {
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav a {
  color: var(--ink-soft);
  font-weight: 500;
  font-size: 0.95rem;
  padding: 8px 12px;
  border-radius: 8px;
  transition: all 0.2s ease;
}
.nav a:hover {
  color: var(--gas-blue);
  background: rgba(0, 115, 183, 0.06);
}
.nav a.is-active {
  color: var(--gas-blue);
  background: rgba(0, 115, 183, 0.08);
}

.header-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  background: var(--gas-blue);
  color: white;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.92rem;
  transition: background 0.2s ease;
}
.header-cta:hover { background: var(--gas-blue-dark); color: white; }

.menu-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  padding: 8px 10px;
  cursor: pointer;
  color: var(--ink);
}

@media (max-width: 940px) {
  .nav, .header-cta { display: none; }
  .menu-toggle { display: inline-flex; align-items: center; gap: 6px; }
  .nav.is-open {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    background: white;
    padding: 16px;
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow-md);
  }
  .nav.is-open a { padding: 12px 14px; }
  .header-cta.is-open { display: inline-flex; }
}

/* BUTTONS */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 26px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}
.btn--primary {
  background: var(--gas-blue);
  color: white;
}
.btn--primary:hover {
  background: var(--gas-blue-dark);
  color: white;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}
.btn--accent {
  background: var(--flame);
  color: white;
}
.btn--accent:hover {
  background: var(--flame-dark);
  color: white;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}
.btn--ghost {
  background: white;
  color: var(--gas-blue);
  border: 2px solid var(--gas-blue);
}
.btn--ghost:hover {
  background: var(--gas-blue);
  color: white;
}
.btn--lg { padding: 16px 32px; font-size: 1.05rem; }

/* HERO */
.hero {
  background: linear-gradient(135deg, #f0f7fc 0%, #e6f1f8 100%);
  position: relative;
  overflow: hidden;
  padding: 80px 0 100px;
}
.hero::before {
  content: '';
  position: absolute;
  top: -10%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(0, 115, 183, 0.10) 0%, transparent 70%);
  pointer-events: none;
}
.hero__inner {
  position: relative;
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 60px;
  align-items: center;
}
.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(255, 107, 53, 0.12);
  color: var(--flame-dark);
  border-radius: 100px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 18px;
}
.hero h1 {
  margin-bottom: 18px;
}
.hero__lead {
  font-size: 1.15rem;
  color: var(--muted);
  margin-bottom: 32px;
  max-width: 540px;
}
.hero__ctas {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.hero__media {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  aspect-ratio: 4 / 5;
  background: linear-gradient(135deg, var(--gas-blue) 0%, var(--gas-blue-dark) 100%);
}
.hero__media img,
.hero__media .hero__svg {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.hero__badge {
  position: absolute;
  bottom: 24px;
  left: 24px;
  right: 24px;
  background: white;
  padding: 18px 22px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  gap: 14px;
  box-shadow: var(--shadow-md);
}
.hero__badge-icon {
  width: 44px;
  height: 44px;
  background: rgba(0, 115, 183, 0.10);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gas-blue);
  flex-shrink: 0;
}
.hero__badge-text { font-size: 0.95rem; line-height: 1.4; color: var(--ink); }
.hero__badge-text strong { display: block; color: var(--ink); font-weight: 700; }
.hero__badge-text span { color: var(--muted); font-size: 0.85rem; }

@media (max-width: 880px) {
  .hero { padding: 50px 0 70px; }
  .hero__inner { grid-template-columns: 1fr; gap: 36px; }
  .hero__media { aspect-ratio: 16 / 12; max-height: 440px; }
}

/* SECTION */
.section {
  padding: 90px 0;
}
.section--soft { background: var(--bg-light); }
.section--ink { background: var(--ink); color: #cbd5e1; }
.section--ink h2, .section--ink h3 { color: white; }
.section--ink p { color: #94a3b8; }
.section__head {
  max-width: 720px;
  margin: 0 auto 56px;
  text-align: center;
}
.section__eyebrow {
  display: inline-block;
  color: var(--flame);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.section__lead {
  font-size: 1.1rem;
  color: var(--muted);
  margin-top: 12px;
}

/* PROCESS STEPS */
.process-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.process-step {
  background: white;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 32px 28px;
  position: relative;
  transition: all 0.25s ease;
}
.process-step:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  border-color: var(--gas-blue-light);
}
.process-step__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--gas-blue), var(--gas-blue-dark));
  color: white;
  font-weight: 800;
  font-size: 1.2rem;
  border-radius: 12px;
  margin-bottom: 20px;
}
.process-step h3 {
  margin-bottom: 10px;
  font-size: 1.2rem;
}
.process-step p { font-size: 0.95rem; margin: 0; }

@media (max-width: 880px) {
  .process-grid { grid-template-columns: 1fr; }
}
@media (min-width: 881px) and (max-width: 1080px) {
  .process-grid { grid-template-columns: repeat(2, 1fr); }
}

/* SERVICE CARDS */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.service-card {
  background: white;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 36px 30px;
  display: flex;
  flex-direction: column;
  transition: all 0.25s ease;
}
.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.service-card__icon {
  width: 56px;
  height: 56px;
  background: rgba(0, 115, 183, 0.10);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gas-blue);
  margin-bottom: 22px;
}
.service-card__icon svg { width: 28px; height: 28px; }
.service-card h3 { margin-bottom: 10px; }
.service-card p { flex: 1; font-size: 0.95rem; margin-bottom: 20px; }
.service-card__link {
  font-weight: 600;
  color: var(--gas-blue);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.95rem;
}
.service-card__link::after {
  content: '→';
  transition: transform 0.2s ease;
}
.service-card__link:hover::after { transform: translateX(4px); }

@media (max-width: 880px) {
  .cards-grid { grid-template-columns: 1fr; }
}
@media (min-width: 881px) and (max-width: 1080px) {
  .cards-grid { grid-template-columns: repeat(2, 1fr); }
}

/* REGION GRID (ilçeler) */
.region-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 14px;
}
.region-pill {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  background: white;
  border: 1px solid var(--line);
  border-radius: 12px;
  font-weight: 500;
  color: var(--ink-soft);
  font-size: 0.95rem;
  transition: all 0.2s ease;
}
.region-pill:hover {
  border-color: var(--gas-blue);
  background: rgba(0, 115, 183, 0.04);
  color: var(--gas-blue);
}
.region-pill__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--flame);
  flex-shrink: 0;
}

/* FAQ */
.faq-list {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.faq-item {
  background: white;
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  transition: border-color 0.2s ease;
}
.faq-item[open] { border-color: var(--gas-blue-light); }
.faq-item summary {
  padding: 22px 26px;
  cursor: pointer;
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--ink);
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '+';
  font-size: 1.5rem;
  color: var(--gas-blue);
  font-weight: 400;
  flex-shrink: 0;
  transition: transform 0.2s ease;
}
.faq-item[open] summary::after { content: '−'; }
.faq-item__body {
  padding: 0 26px 24px;
  color: var(--ink-soft);
  line-height: 1.7;
}
.faq-item__body p:last-child { margin-bottom: 0; }

/* CONTACT */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-bottom: 56px;
}
.contact-card {
  background: white;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 26px;
  text-align: center;
}
.contact-card__icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  background: rgba(0, 115, 183, 0.10);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gas-blue);
}
.contact-card h3 { font-size: 1.05rem; margin-bottom: 6px; }
.contact-card a {
  font-weight: 600;
  font-size: 1rem;
  display: block;
}
.contact-card span { color: var(--muted); font-size: 0.9rem; }

@media (max-width: 880px) {
  .contact-grid { grid-template-columns: 1fr; }
}

/* QUICK CONTACT (form yerine) */
.quick-contact {
  background: white;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 48px 40px;
  box-shadow: var(--shadow-sm);
}
.quick-contact__head {
  text-align: center;
  margin-bottom: 36px;
}
.quick-contact__head h2 {
  margin-bottom: 10px;
  font-size: clamp(1.5rem, 2.6vw, 2rem);
}
.quick-contact__head p {
  color: var(--muted);
  font-size: 1.05rem;
  margin: 0;
}
.quick-contact__ctas {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
.quick-cta {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 24px 26px;
  border-radius: 16px;
  text-decoration: none;
  transition: all 0.25s ease;
  position: relative;
  overflow: hidden;
}
.quick-cta--whatsapp {
  background: linear-gradient(135deg, #25D366 0%, #128C7E 100%);
  color: white;
}
.quick-cta--phone {
  background: linear-gradient(135deg, var(--gas-blue) 0%, var(--gas-blue-dark) 100%);
  color: white;
}
.quick-cta:hover {
  color: white;
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}
.quick-cta__icon {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  background: rgba(255, 255, 255, 0.18);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.quick-cta__icon svg { width: 30px; height: 30px; color: white; }
.quick-cta__body {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.quick-cta__label {
  font-size: 0.85rem;
  font-weight: 500;
  opacity: 0.9;
  letter-spacing: 0.02em;
}
.quick-cta__value {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}
.quick-cta__hint {
  font-size: 0.82rem;
  opacity: 0.85;
}
.quick-contact__note {
  text-align: center;
  margin: 28px 0 0;
  color: var(--muted);
  font-size: 0.95rem;
}
.quick-contact__note a {
  color: var(--gas-blue);
  font-weight: 600;
}

@media (max-width: 720px) {
  .quick-contact { padding: 32px 22px; }
  .quick-contact__ctas { grid-template-columns: 1fr; }
  .quick-cta { padding: 20px 22px; }
  .quick-cta__icon { width: 48px; height: 48px; }
  .quick-cta__value { font-size: 1.1rem; }
}

/* FOOTER */
.site-footer {
  background: var(--ink);
  color: #94a3b8;
  padding: 70px 0 30px;
  margin-top: auto;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 50px;
}
.footer-col h4 {
  color: white;
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 18px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.footer-col ul { list-style: none; padding: 0; margin: 0; }
.footer-col li { margin-bottom: 10px; font-size: 0.95rem; }
.footer-col a {
  color: #cbd5e1;
  transition: color 0.15s ease;
}
.footer-col a:hover { color: white; }

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.footer-brand__lockup {
  display: flex;
  align-items: center;
  gap: 12px;
}
.footer-brand__icon {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--gas-blue), var(--gas-blue-dark));
  border-radius: 11px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.footer-brand__icon svg { width: 24px; height: 24px; color: var(--flame); }
.footer-brand__name {
  color: white;
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
}
.footer-brand p {
  color: #94a3b8;
  font-size: 0.92rem;
  line-height: 1.6;
  margin: 0;
}

.footer-mattek {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid #2d3a4a;
  display: flex;
  align-items: center;
  gap: 12px;
}
.footer-mattek img {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background: white;
  padding: 4px;
  flex-shrink: 0;
}
.footer-mattek__text { font-size: 0.85rem; line-height: 1.4; }
.footer-mattek__text span { display: block; color: #64748b; font-size: 0.78rem; }
.footer-mattek__text a { color: white; font-weight: 600; }

.footer-bottom {
  border-top: 1px solid #2d3a4a;
  padding-top: 24px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  font-size: 0.85rem;
}
.footer-bottom__legal { color: #64748b; }
.footer-bottom__links { display: flex; gap: 22px; }

@media (max-width: 880px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
  .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 540px) {
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}

/* WHATSAPP FAB */
.whatsapp-fab {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 60px;
  height: 60px;
  background: #25D366;
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 20px rgba(37, 211, 102, 0.4);
  z-index: 60;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.whatsapp-fab:hover {
  transform: scale(1.06);
  color: white;
  box-shadow: 0 12px 28px rgba(37, 211, 102, 0.5);
}
.whatsapp-fab svg { width: 32px; height: 32px; }

/* PAGE HERO (alt sayfalar için) */
.page-hero {
  background: linear-gradient(135deg, var(--gas-blue) 0%, var(--gas-blue-dark) 100%);
  color: white;
  padding: 80px 0 70px;
  position: relative;
  overflow: hidden;
}
.page-hero::after {
  content: '';
  position: absolute;
  top: 0;
  right: -100px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(255, 107, 53, 0.18) 0%, transparent 70%);
  pointer-events: none;
}
.page-hero__inner { position: relative; max-width: 760px; }
.page-hero h1 { color: white; margin-bottom: 16px; }
.page-hero__lead { font-size: 1.15rem; color: rgba(255, 255, 255, 0.85); margin: 0; }
.breadcrumb {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 16px;
}
.breadcrumb a { color: rgba(255, 255, 255, 0.85); }
.breadcrumb a:hover { color: white; }

/* ARTICLE / RICH CONTENT */
.prose {
  max-width: 760px;
  margin: 0 auto;
  font-size: 1.05rem;
}
.prose h2 {
  margin-top: 2.2em;
  font-size: 1.7rem;
}
.prose h2:first-child { margin-top: 0; }
.prose h3 { margin-top: 1.6em; font-size: 1.25rem; }
.prose p { margin: 0 0 1.1em; }
.prose ul, .prose ol { padding-left: 24px; margin: 0 0 1.2em; }
.prose ul li, .prose ol li { margin-bottom: 8px; color: var(--ink-soft); }
.prose strong { color: var(--ink); }
.prose blockquote {
  border-left: 4px solid var(--gas-blue);
  padding: 14px 22px;
  margin: 24px 0;
  background: var(--bg-light);
  border-radius: 0 10px 10px 0;
  color: var(--ink-soft);
  font-style: italic;
}

.callout {
  background: linear-gradient(135deg, rgba(0, 115, 183, 0.06), rgba(0, 115, 183, 0.02));
  border: 1px solid rgba(0, 115, 183, 0.18);
  border-left: 4px solid var(--gas-blue);
  border-radius: 12px;
  padding: 22px 26px;
  margin: 28px 0;
}
.callout strong { color: var(--gas-blue); display: block; margin-bottom: 4px; }
.callout p:last-child { margin-bottom: 0; }

/* CTA STRIP */
.cta-strip {
  background: linear-gradient(135deg, var(--flame) 0%, #f55918 100%);
  color: white;
  padding: 56px 0;
  text-align: center;
}
.cta-strip h2 { color: white; margin-bottom: 12px; }
.cta-strip p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.1rem;
  max-width: 620px;
  margin: 0 auto 28px;
}
.cta-strip .btn--white {
  background: white;
  color: var(--flame);
}
.cta-strip .btn--white:hover { background: var(--bg-light); color: var(--flame-dark); }

/* TABLE (kapasite, fiyat aralıkları) */
.spec-table {
  width: 100%;
  border-collapse: collapse;
  margin: 28px 0;
  font-size: 0.95rem;
  background: white;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--line);
}
.spec-table th {
  background: var(--bg-light);
  text-align: left;
  padding: 14px 18px;
  font-weight: 700;
  color: var(--ink);
  font-size: 0.88rem;
  letter-spacing: 0.02em;
}
.spec-table td {
  padding: 14px 18px;
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
}

/* MAP IFRAME */
.map-wrap {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  height: 360px;
}
.map-wrap iframe { width: 100%; height: 100%; border: 0; }

/* UTILITIES */
.text-center { text-align: center; }
.mt-4 { margin-top: 32px; }
.mb-4 { margin-bottom: 32px; }
.gradient-text {
  background: linear-gradient(135deg, var(--gas-blue), var(--flame));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Skip to content (a11y) */
.skip-link {
  position: absolute;
  top: -40px;
  left: 16px;
  background: var(--gas-blue);
  color: white;
  padding: 8px 14px;
  border-radius: 8px;
  z-index: 100;
}
.skip-link:focus { top: 16px; color: white; }