/* =============================================
   KL Beton — styles.css
   Mobile-first, no external dependencies
   ============================================= */

/* --- RESET & BASE --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --color-bg:         #f7f7f6;
  --color-white:      #ffffff;
  --color-text:       #1e1e1e;
  --color-text-muted: #5a5a5a;
  --color-heading:    #222222;
  --color-concrete:   #4a4a4a;
  --color-accent:     #e87a00;
  --color-accent-dark:#c46700;
  --color-border:     #e0dedd;
  --color-card-bg:    #ffffff;
  --color-hero-bg:    #1e2124;
  --color-footer-bg:  #1e2124;
  --color-footer-text:#c8c8c4;
  --shadow-card:      0 2px 12px rgba(0,0,0,0.08);
  --shadow-btn:       0 4px 14px rgba(232,122,0,0.3);
  --radius-sm:        6px;
  --radius-md:        10px;
  --radius-lg:        16px;
  --font-sans:        system-ui, -apple-system, "Segoe UI", Helvetica, Arial, sans-serif;
  --max-width:        1160px;
  --section-py:       72px;
}

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

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* --- CONTAINER --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* --- TYPOGRAPHY --- */
h1, h2, h3, h4 {
  color: var(--color-heading);
  line-height: 1.2;
  font-weight: 700;
}

h1 { font-size: clamp(2rem, 5vw, 3rem); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.2rem); }
h3 { font-size: clamp(1.1rem, 2vw, 1.3rem); }

p { color: var(--color-text-muted); }

/* --- BUTTONS --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
  white-space: nowrap;
  line-height: 1;
  text-decoration: none;
}

.btn-primary {
  background: var(--color-accent);
  color: #fff;
  box-shadow: var(--shadow-btn);
}
.btn-primary:hover {
  background: var(--color-accent-dark);
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  color: var(--color-accent);
  border: 2px solid var(--color-accent);
}
.btn-outline:hover {
  background: var(--color-accent);
  color: #fff;
}

.btn-ghost {
  background: rgba(255,255,255,0.12);
  color: #fff;
  border: 1.5px solid rgba(255,255,255,0.3);
}
.btn-ghost:hover {
  background: rgba(255,255,255,0.22);
}

.btn-light {
  background: #fff;
  color: var(--color-accent);
  font-weight: 700;
}
.btn-light:hover {
  background: #f0f0ee;
}

.btn-sm {
  padding: 10px 20px;
  font-size: 0.9rem;
}

/* --- SECTION LABEL --- */
.section-label {
  display: inline-block;
  background: rgba(232,122,0,0.1);
  color: var(--color-accent);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 5px 12px;
  border-radius: 20px;
  margin-bottom: 14px;
}

/* --- SECTION TITLE --- */
.section-title {
  margin-bottom: 12px;
}
.section-intro {
  max-width: 600px;
  font-size: 1.05rem;
  margin-bottom: 48px;
}

/* =============================================
   HEADER / NAV
   ============================================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  box-shadow: 0 1px 8px rgba(0,0,0,0.06);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: 20px;
}

.logo {
  display: flex;
  flex-direction: column;
  line-height: 1;
  flex-shrink: 0;
}
.logo-name {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--color-heading);
  letter-spacing: -0.02em;
}
.logo-name span { color: var(--color-accent); }
.logo-tagline {
  font-size: 0.7rem;
  color: var(--color-text-muted);
  font-weight: 400;
  letter-spacing: 0.03em;
}

.main-nav {
  display: none;
}
.main-nav ul {
  display: flex;
  gap: 4px;
  align-items: center;
}
.main-nav a {
  padding: 8px 14px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-concrete);
  border-radius: var(--radius-sm);
  transition: color 0.15s, background 0.15s;
}
.main-nav a:hover {
  color: var(--color-accent);
  background: rgba(232,122,0,0.07);
}

.header-cta {
  display: none;
}

.menu-toggle {
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 5px;
  border-radius: var(--radius-sm);
}
.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-heading);
  transition: transform 0.25s, opacity 0.25s;
  border-radius: 2px;
}
.menu-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.open span:nth-child(2) { opacity: 0; }
.menu-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile nav drawer */
.mobile-nav {
  display: none;
  flex-direction: column;
  background: var(--color-white);
  border-top: 1px solid var(--color-border);
  padding: 16px 20px 24px;
  gap: 4px;
}
.mobile-nav.open { display: flex; }
.mobile-nav a {
  padding: 12px 16px;
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-concrete);
  border-radius: var(--radius-sm);
  transition: color 0.15s, background 0.15s;
}
.mobile-nav a:hover {
  color: var(--color-accent);
  background: rgba(232,122,0,0.07);
}
.mobile-nav .btn {
  margin-top: 8px;
  text-align: center;
  justify-content: center;
}

/* =============================================
   HERO
   ============================================= */
.hero {
  background: var(--color-hero-bg);
  color: #fff;
  padding: 72px 0 64px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 60% at 90% 50%, rgba(232,122,0,0.12) 0%, transparent 70%),
    repeating-linear-gradient(
      -45deg,
      transparent,
      transparent 30px,
      rgba(255,255,255,0.015) 30px,
      rgba(255,255,255,0.015) 31px
    );
  pointer-events: none;
}

.hero-content { position: relative; z-index: 1; }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(232,122,0,0.15);
  border: 1px solid rgba(232,122,0,0.35);
  color: #f8a94b;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 6px 14px;
  border-radius: 20px;
  margin-bottom: 24px;
}

.hero h1 {
  color: #fff;
  margin-bottom: 20px;
}

.hero-subtitle {
  font-size: clamp(1rem, 2.2vw, 1.2rem);
  color: rgba(255,255,255,0.72);
  max-width: 580px;
  margin-bottom: 36px;
  line-height: 1.7;
}

.hero-contact-quick {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 36px;
}

.hero-contact-item {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-sm);
  padding: 10px 18px;
  font-size: 0.95rem;
  font-weight: 500;
  color: #fff;
  transition: background 0.2s;
  text-decoration: none;
}
.hero-contact-item:hover {
  background: rgba(255,255,255,0.13);
}
.hero-contact-item svg {
  color: var(--color-accent);
  flex-shrink: 0;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 44px;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.hero-tag {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  color: rgba(255,255,255,0.8);
  font-size: 0.8rem;
  padding: 5px 14px;
  border-radius: 20px;
}

/* =============================================
   TRUST SECTION
   ============================================= */
.trust-section {
  background: var(--color-white);
  padding: var(--section-py) 0;
  border-bottom: 1px solid var(--color-border);
}

.trust-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.trust-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  box-shadow: var(--shadow-card);
  transition: transform 0.2s, box-shadow 0.2s;
}
.trust-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.1);
}

.trust-card-icon {
  width: 48px;
  height: 48px;
  background: rgba(232,122,0,0.1);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  color: var(--color-accent);
}

.trust-card h3 {
  margin-bottom: 8px;
}
.trust-card p {
  font-size: 0.95rem;
}

/* =============================================
   OFFER SECTION
   ============================================= */
.offer-section {
  padding: var(--section-py) 0;
  background: var(--color-bg);
}

.offer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.offer-card {
  background: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  display: flex;
  gap: 18px;
  align-items: flex-start;
  box-shadow: var(--shadow-card);
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
}
.offer-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.09);
  border-color: rgba(232,122,0,0.3);
}

.offer-card-icon {
  width: 44px;
  height: 44px;
  background: rgba(232,122,0,0.1);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--color-accent);
}

.offer-card-body h3 {
  font-size: 1rem;
  margin-bottom: 6px;
}
.offer-card-body p {
  font-size: 0.9rem;
  line-height: 1.6;
}

/* =============================================
   HOW TO ORDER
   ============================================= */
.how-section {
  background: var(--color-white);
  padding: var(--section-py) 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

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

.step-card {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

.step-number {
  width: 48px;
  height: 48px;
  background: var(--color-accent);
  color: #fff;
  font-size: 1.2rem;
  font-weight: 800;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(232,122,0,0.3);
}

.step-body h3 {
  margin-bottom: 6px;
  font-size: 1.05rem;
}
.step-body p {
  font-size: 0.92rem;
}

/* =============================================
   CHECKLIST SECTION
   ============================================= */
.checklist-section {
  background: var(--color-bg);
  padding: var(--section-py) 0;
}

.checklist-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
  align-items: start;
}

.checklist-text h2 { margin-bottom: 16px; }
.checklist-text p { max-width: 440px; }

.checklist-items {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.checklist-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.97rem;
  color: var(--color-text);
}
.checklist-item:last-child { border-bottom: none; }

.check-icon {
  width: 28px;
  height: 28px;
  background: rgba(232,122,0,0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
  flex-shrink: 0;
}

/* =============================================
   CONTACT SECTION
   ============================================= */
.contact-section {
  background: var(--color-white);
  padding: var(--section-py) 0;
  border-top: 1px solid var(--color-border);
}

.contact-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
}

.contact-info h2 { margin-bottom: 24px; }

.contact-block {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-bottom: 32px;
}

.contact-line {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.contact-line-icon {
  width: 40px;
  height: 40px;
  background: rgba(232,122,0,0.1);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
  flex-shrink: 0;
}

.contact-line-text strong {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 2px;
}
.contact-line-text a,
.contact-line-text span {
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-text);
}
.contact-line-text a:hover { color: var(--color-accent); }

.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.contact-hours {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
}
.contact-hours h3 {
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1rem;
}
.contact-hours h3 svg { color: var(--color-accent); }

.hours-row {
  display: flex;
  justify-content: space-between;
  padding: 8px 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.92rem;
}
.hours-row:last-child { border-bottom: none; }
.hours-row span:first-child { color: var(--color-text-muted); }
.hours-row span:last-child { font-weight: 600; color: var(--color-text); }

/* =============================================
   CTA FINAL
   ============================================= */
.cta-final {
  background: var(--color-accent);
  padding: 72px 0;
  text-align: center;
}
.cta-final h2 {
  color: #fff;
  margin-bottom: 16px;
}
.cta-final p {
  color: rgba(255,255,255,0.85);
  max-width: 560px;
  margin: 0 auto 36px;
  font-size: 1.05rem;
}
.cta-final-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
}

/* =============================================
   FOOTER
   ============================================= */
.site-footer {
  background: var(--color-footer-bg);
  color: var(--color-footer-text);
  padding: 56px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-brand .logo-name {
  color: #fff;
  font-size: 1.5rem;
  display: block;
  margin-bottom: 8px;
}
.footer-brand .logo-name span { color: var(--color-accent); }
.footer-brand p {
  font-size: 0.9rem;
  color: var(--color-footer-text);
  max-width: 280px;
  line-height: 1.6;
}

.footer-col h4 {
  color: #fff;
  font-size: 0.85rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.footer-col ul { display: flex; flex-direction: column; gap: 8px; }
.footer-col ul a {
  font-size: 0.9rem;
  color: var(--color-footer-text);
  transition: color 0.15s;
}
.footer-col ul a:hover { color: var(--color-accent); }

.footer-col .footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--color-footer-text);
  margin-bottom: 12px;
}
.footer-col .footer-contact-item svg { color: var(--color-accent); flex-shrink: 0; margin-top: 2px; }
.footer-col .footer-contact-item a { color: var(--color-footer-text); transition: color 0.15s; }
.footer-col .footer-contact-item a:hover { color: var(--color-accent); }

.footer-bottom {
  padding: 20px 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.footer-bottom-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px;
  align-items: center;
  font-size: 0.8rem;
  color: rgba(200,200,196,0.6);
}
.footer-disclaimer {
  font-size: 0.78rem;
  color: rgba(200,200,196,0.5);
  line-height: 1.5;
}

/* =============================================
   RESPONSIVE — TABLET (640px+)
   ============================================= */
@media (min-width: 640px) {
  .trust-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .offer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .checklist-layout {
    grid-template-columns: 1fr 1fr;
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* =============================================
   RESPONSIVE — DESKTOP (900px+)
   ============================================= */
@media (min-width: 900px) {
  .main-nav { display: flex; }
  .header-cta { display: flex; gap: 12px; align-items: center; }
  .menu-toggle { display: none; }

  .offer-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .steps-grid {
    grid-template-columns: repeat(4, 1fr);
  }
  .contact-layout {
    grid-template-columns: 1fr 1fr;
  }
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr;
  }
  .footer-bottom-row {
    flex-direction: row;
  }
}

@media (min-width: 1100px) {
  .offer-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* =============================================
   UTILITIES
   ============================================= */
.text-accent { color: var(--color-accent); }
.mt-4  { margin-top: 16px; }
.mt-8  { margin-top: 32px; }
.mb-4  { margin-bottom: 16px; }

/* Skip to main content (accessibility) */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-accent);
  color: #fff;
  padding: 8px 16px;
  font-size: 0.9rem;
  border-radius: 0 0 4px 0;
  transition: top 0.2s;
  z-index: 9999;
}
.skip-link:focus { top: 0; }