/* ============================================================
   PETRA PRECAST CONSTRUCTION — Main Stylesheet
   ============================================================ */

:root {
  --navy:       #0d2137;
  --navy-mid:   #1a3a5c;
  --orange:     #e8721a;
  --orange-lt:  #f5a623;
  --green:      #27ae60;
  --blue-acc:   #2980b9;
  --text:       #212529;
  --text-muted: #6c757d;
  --border:     #dee2e6;
  --bg-light:   #f8f9fa;
  --bg-dark:    #0d2137;
  --white:      #ffffff;
  --radius:     12px;
  --shadow:     0 4px 24px rgba(0,0,0,0.10);
  --shadow-lg:  0 8px 48px rgba(0,0,0,0.16);
  --transition: 0.3s ease;
}

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

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

body {
  font-family: 'Open Sans', sans-serif;
  color: var(--text);
  background: var(--white);
  overflow-x: hidden;
}

h1,h2,h3,h4,h5 { font-family: 'Montserrat', sans-serif; line-height: 1.25; }

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

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding: 96px 0; }

/* ── BUTTONS ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 8px;
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transition);
  white-space: nowrap;
}
.btn-primary { background: var(--orange); color: var(--white); border-color: var(--orange); }
.btn-primary:hover { background: #d06315; border-color: #d06315; transform: translateY(-2px); box-shadow: 0 4px 16px rgba(232,114,26,0.35); }
.btn-outline { background: transparent; color: var(--white); border-color: var(--white); }
.btn-outline:hover { background: var(--white); color: var(--navy); }
.btn-outline-sm { background: transparent; color: var(--orange); border: 2px solid var(--orange); padding: 8px 20px; font-size: 0.85rem; }
.btn-outline-sm:hover { background: var(--orange); color: var(--white); }
.btn-ghost { background: transparent; color: var(--text-muted); border-color: var(--border); }
.btn-ghost:hover { background: var(--bg-light); color: var(--text); }
.btn-lg { padding: 16px 36px; font-size: 1rem; }
.btn-block { width: 100%; justify-content: center; }

/* ── SECTION HEADERS ── */
.section-tag {
  display: inline-block;
  background: rgba(232,114,26,0.12);
  color: var(--orange);
  padding: 6px 16px;
  border-radius: 50px;
  font-size: 0.8rem;
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.section-title { font-size: clamp(1.8rem, 3vw, 2.6rem); color: var(--navy); margin-bottom: 16px; }
.section-subtitle { font-size: 1.05rem; color: var(--text-muted); max-width: 600px; line-height: 1.7; }
.section-header.text-center { text-align: center; }
.section-header.text-center .section-subtitle { margin: 0 auto; }
.highlight { color: var(--orange); }
.text-center { text-align: center; }

/* ── NAVBAR ── */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 18px 0;
  transition: all var(--transition);
}
.navbar.scrolled {
  background: rgba(13,33,55,0.97);
  backdrop-filter: blur(12px);
  padding: 12px 0;
  box-shadow: 0 2px 20px rgba(0,0,0,0.3);
}
.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.logo-icon {
  width: 44px; height: 44px;
  background: var(--orange);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.2rem;
}
.logo-text { display: flex; flex-direction: column; }
.logo-main { font-family: 'Montserrat', sans-serif; font-weight: 900; font-size: 1.1rem; color: white; letter-spacing: 2px; line-height: 1; }
.logo-sub { font-size: 0.65rem; color: rgba(255,255,255,0.7); letter-spacing: 0.5px; font-family: 'Montserrat', sans-serif; font-weight: 400; }
.nav-links {
  display: flex;
  list-style: none;
  gap: 32px;
}
.nav-links a {
  color: rgba(255,255,255,0.85);
  font-family: 'Montserrat', sans-serif;
  font-weight: 500;
  font-size: 0.88rem;
  transition: color var(--transition);
  letter-spacing: 0.3px;
}
.nav-links a:hover { color: var(--orange-lt); }
.nav-cta { padding: 10px 22px; font-size: 0.85rem; }
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 24px; height: 2px;
  background: white;
  border-radius: 2px;
  transition: all var(--transition);
}

/* ── HERO ── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--navy);
  position: relative;
  overflow: hidden;
  padding: 120px 0 80px;
}
.hero-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
}
.hero-pattern {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(135deg, rgba(232,114,26,0.08) 25%, transparent 25%),
    linear-gradient(225deg, rgba(232,114,26,0.08) 25%, transparent 25%),
    linear-gradient(45deg, rgba(232,114,26,0.04) 25%, transparent 25%),
    linear-gradient(315deg, rgba(26,58,92,0.6) 25%, transparent 25%);
  background-size: 60px 60px;
  background-position: 0 0, 30px 0, 30px -30px, 0px 30px;
}
.hero-bg::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0; right: 0;
  height: 120px;
  background: linear-gradient(to bottom, transparent, var(--white));
}
.hero-content { position: relative; z-index: 1; max-width: 780px; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(232,114,26,0.2);
  border: 1px solid rgba(232,114,26,0.4);
  color: var(--orange-lt);
  padding: 8px 20px;
  border-radius: 50px;
  font-size: 0.85rem;
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  margin-bottom: 24px;
}
.hero-title {
  font-size: clamp(2.4rem, 5vw, 4rem);
  color: white;
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 24px;
}
.hero-subtitle {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.75);
  line-height: 1.7;
  margin-bottom: 40px;
  max-width: 580px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 64px; }
.hero-stats {
  display: flex;
  align-items: center;
  gap: 0;
  flex-wrap: wrap;
  gap: 0;
}
.stat {
  display: flex;
  flex-direction: column;
  padding: 0 36px;
}
.stat:first-child { padding-left: 0; }
.stat-number {
  font-family: 'Montserrat', sans-serif;
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--orange-lt);
  line-height: 1;
}
.stat-suffix { font-family: 'Montserrat', sans-serif; font-size: 2.4rem; font-weight: 800; color: var(--orange-lt); }
.stat-label { font-size: 0.8rem; color: rgba(255,255,255,0.6); margin-top: 4px; font-family: 'Montserrat', sans-serif; font-weight: 500; }
.stat-divider { width: 1px; height: 48px; background: rgba(255,255,255,0.2); flex-shrink: 0; }
.scroll-down {
  position: absolute;
  bottom: 40px; left: 50%;
  transform: translateX(-50%);
  color: rgba(255,255,255,0.5);
  font-size: 1.2rem;
  animation: bounce 2s infinite;
  z-index: 1;
}

/* ── ABOUT ── */
.about { background: var(--white); }
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
}
.about-img-wrapper {
  position: relative;
  border-radius: var(--radius);
  overflow: visible;
}
.about-img-placeholder {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-mid) 100%);
  border-radius: var(--radius);
  height: 480px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.2);
  font-size: 5rem;
  gap: 16px;
}
.about-img-placeholder p { font-size: 0.9rem; font-family: 'Montserrat', sans-serif; color: rgba(255,255,255,0.3); text-align: center; }
.about-badge-float {
  position: absolute;
  bottom: -24px; right: -24px;
  background: var(--orange);
  color: white;
  padding: 16px 24px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: var(--shadow-lg);
  font-size: 1.5rem;
}
.about-badge-float div { display: flex; flex-direction: column; }
.about-badge-float strong { font-family: 'Montserrat', sans-serif; font-size: 0.95rem; font-weight: 700; }
.about-badge-float span { font-size: 0.75rem; opacity: 0.85; }
.about-text .section-title { margin-bottom: 20px; }
.about-text .lead { font-size: 1.1rem; color: var(--text); margin-bottom: 16px; font-weight: 600; }
.about-text p { color: var(--text-muted); line-height: 1.8; margin-bottom: 32px; }
.about-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 40px;
}
.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}
.feature-icon {
  width: 40px; height: 40px;
  background: rgba(232,114,26,0.12);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--orange);
  flex-shrink: 0;
}
.feature-item div { display: flex; flex-direction: column; gap: 2px; }
.feature-item strong { font-family: 'Montserrat', sans-serif; font-size: 0.9rem; font-weight: 700; color: var(--navy); }
.feature-item span { font-size: 0.8rem; color: var(--text-muted); }

/* ── WHY PRECAST ── */
.why-precast { background: var(--bg-light); }
.section-header { margin-bottom: 64px; }
.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-bottom: 64px;
}
.card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 36px 28px;
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.card-icon {
  width: 56px; height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 20px;
}
.card-icon.orange { background: rgba(232,114,26,0.12); color: var(--orange); }
.card-icon.blue   { background: rgba(41,128,185,0.12); color: var(--blue-acc); }
.card-icon.green  { background: rgba(39,174,96,0.12); color: var(--green); }
.card h3 { font-size: 1.05rem; font-weight: 700; color: var(--navy); margin-bottom: 10px; }
.card p { font-size: 0.9rem; color: var(--text-muted); line-height: 1.7; }
.blockmaster-partner {
  background: var(--white);
  border: 2px solid var(--orange);
  border-radius: var(--radius);
  padding: 36px;
  display: flex;
  align-items: center;
  gap: 48px;
}
.partner-logo-area { flex-shrink: 0; text-align: center; }
.partner-label { font-size: 0.75rem; color: var(--text-muted); font-family: 'Montserrat', sans-serif; font-weight: 600; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 8px; }
.partner-link { display: block; }
.partner-logo-box {
  background: var(--navy);
  color: white;
  padding: 20px 28px;
  border-radius: 10px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  min-width: 160px;
  font-size: 1.8rem;
  transition: background var(--transition);
}
.partner-logo-box:hover { background: var(--orange); }
.partner-logo-box strong { font-family: 'Montserrat', sans-serif; font-weight: 800; font-size: 1.1rem; letter-spacing: 1px; }
.partner-logo-box span { font-size: 0.7rem; opacity: 0.7; }
.blockmaster-partner p { color: var(--text-muted); line-height: 1.8; font-size: 0.95rem; }

/* ── PROCESS ── */
.process { background: var(--white); }

/*
 * Vertical stepper layout — works at all screen sizes.
 * The connecting line runs through the left-side circles.
 * On desktop, the card occupies the full remaining width.
 */
.process-track {
  position: relative;
  max-width: 860px;
  margin: 64px auto 0;
  /* left padding makes room for the circle column */
  padding-left: 96px;
}

/* Grey rail running through all circles */
.process-track-line {
  position: absolute;
  left: 31px;       /* horizontally centred on the 64px circle */
  top: 32px;        /* starts at centre of circle 1 */
  bottom: 32px;     /* ends at centre of circle 5 */
  width: 4px;
  background: var(--border);
  border-radius: 2px;
  z-index: 0;
}

/* Orange fill on top of the grey rail */
.process-track-fill {
  position: absolute;
  left: 31px;
  top: 32px;
  width: 4px;
  height: calc(100% - 64px);
  background: linear-gradient(to bottom, var(--orange), var(--orange-lt));
  border-radius: 2px;
  z-index: 1;
}

/* One step = circle (absolute-left) + content card (fills right) */
.process-step {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 32px;
  margin-bottom: 40px;
}
.process-step:last-child { margin-bottom: 0; }

/* Pull the circle back into the left padding channel */
.ps-top {
  position: absolute;
  left: -96px;
  top: 0;
  z-index: 2;
  flex-shrink: 0;
}

.ps-circle {
  width: 64px; height: 64px;
  border-radius: 50%;
  background: var(--white);
  border: 3px solid var(--orange);
  color: var(--orange);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Montserrat', sans-serif;
  font-weight: 800;
  font-size: 1.15rem;
  box-shadow: 0 0 0 5px rgba(232,114,26,0.15);
  transition: all var(--transition);
}

.ps-circle.featured,
.process-step:hover .ps-circle {
  background: var(--orange);
  color: white;
  box-shadow: 0 0 0 7px rgba(232,114,26,0.2);
}

/* Content card fills the full right column */
.ps-card {
  flex: 1;
  background: var(--bg-light);
  border: 1px solid var(--border);
  border-left: 4px solid transparent;
  border-radius: var(--radius);
  padding: 24px 28px;
  transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
}

.ps-card.featured,
.process-step:hover .ps-card {
  border-left-color: var(--orange);
  box-shadow: var(--shadow);
  background: var(--white);
}

.ps-days {
  display: inline-block;
  font-size: 0.72rem;
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  color: var(--orange);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  background: rgba(232,114,26,0.1);
  padding: 3px 10px;
  border-radius: 50px;
  margin-bottom: 10px;
}

.ps-card h3 {
  font-size: 1.15rem;
  color: var(--navy);
  margin-bottom: 10px;
  line-height: 1.3;
}

.ps-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 14px;
}

.ps-card ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.ps-card li {
  font-size: 0.875rem;
  color: var(--text-muted);
  display: flex;
  align-items: flex-start;
  gap: 9px;
  line-height: 1.5;
}

.ps-card li i {
  color: var(--green);
  font-size: 0.7rem;
  flex-shrink: 0;
  margin-top: 4px;
}

/* Mobile: tighten spacing, shrink circle */
@media (max-width: 600px) {
  .process-track { padding-left: 72px; }
  .process-track-line { left: 23px; }
  .process-track-fill { left: 23px; }
  .ps-top { left: -72px; }
  .ps-circle { width: 48px; height: 48px; font-size: 0.95rem; }
  .ps-card { padding: 18px 16px; }
  .ps-card h3 { font-size: 1rem; }
}

/* ── SERVICES ── */
.services { background: var(--bg-light); }
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.service-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
}
.service-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.service-img { position: relative; }
.service-img-placeholder {
  height: 200px;
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-mid) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.25);
  font-size: 4rem;
}
.service-badge {
  position: absolute;
  top: 16px; right: 16px;
  background: var(--orange);
  color: white;
  font-size: 0.72rem;
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 50px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.service-body { padding: 28px; }
.service-body h3 { font-size: 1.1rem; color: var(--navy); margin-bottom: 10px; }
.service-body p { font-size: 0.88rem; color: var(--text-muted); line-height: 1.7; margin-bottom: 20px; }
.service-specs {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}
.service-specs span {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  color: var(--text-muted);
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
}
.service-specs i { color: var(--orange); }

/* ── CALCULATOR ── */
.calculator-section { background: var(--bg-light); }
.calculator-wrapper {
  background: var(--white);
  border-radius: 20px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  max-width: 900px;
  margin: 0 auto;
}

/* Progress */
.calc-progress {
  background: var(--navy);
  padding: 32px 40px 24px;
}
.progress-steps {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}
.progress-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  flex: 1;
  position: relative;
}
.step-dot {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: rgba(255,255,255,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.4);
  font-size: 0.85rem;
  transition: all var(--transition);
  position: relative;
  z-index: 1;
}
.progress-step.active .step-dot {
  background: var(--orange);
  color: white;
  box-shadow: 0 0 0 6px rgba(232,114,26,0.25);
}
.progress-step.completed .step-dot {
  background: var(--green);
  color: white;
}
.progress-step span {
  font-size: 0.72rem;
  color: rgba(255,255,255,0.5);
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  white-space: nowrap;
}
.progress-step.active span { color: var(--orange-lt); }
.progress-step.completed span { color: rgba(255,255,255,0.8); }
.progress-line {
  flex: 1;
  height: 2px;
  background: rgba(255,255,255,0.15);
  margin-bottom: 26px;
  transition: background var(--transition);
}
.progress-line.completed { background: var(--green); }
.progress-bar-track {
  height: 4px;
  background: rgba(255,255,255,0.1);
  border-radius: 2px;
  overflow: hidden;
}
.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--orange), var(--orange-lt));
  border-radius: 2px;
  transition: width 0.4s ease;
}

/* Steps */
.calc-body { padding: 40px; }
.calc-step { display: none; animation: fadeIn 0.3s ease; }
.calc-step.active { display: block; }
.step-title {
  font-size: 1.4rem;
  color: var(--navy);
  margin-bottom: 8px;
}
.step-desc { color: var(--text-muted); margin-bottom: 32px; font-size: 0.95rem; line-height: 1.6; }

/* Form elements */
.form-group { margin-bottom: 24px; }
.form-label {
  display: block;
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  font-size: 0.88rem;
  color: var(--navy);
  margin-bottom: 10px;
}
.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--border);
  border-radius: 8px;
  font-family: 'Open Sans', sans-serif;
  font-size: 0.95rem;
  color: var(--text);
  background: var(--white);
  transition: border-color var(--transition);
  outline: none;
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--orange);
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.form-textarea { resize: vertical; min-height: 100px; }
.optional-tag {
  font-weight: 400;
  font-size: 0.78rem;
  color: var(--text-muted);
  font-family: 'Open Sans', sans-serif;
}
.required { color: var(--orange); }

/* Option cards (building type) */
.option-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.option-card { cursor: pointer; }
.option-card input { display: none; }
.option-card-inner {
  border: 2px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 16px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  transition: all var(--transition);
  color: var(--text-muted);
}
.option-card input:checked + .option-card-inner {
  border-color: var(--orange);
  background: rgba(232,114,26,0.06);
  color: var(--navy);
}
.option-card-inner:hover { border-color: var(--orange); }
.option-card-inner i { color: var(--orange); }
.option-card-inner strong { font-family: 'Montserrat', sans-serif; font-weight: 700; font-size: 0.95rem; color: var(--navy); }
.option-card-inner span { font-size: 0.78rem; color: var(--text-muted); }

/* Number selector */
.number-selector {
  display: flex;
  align-items: center;
  gap: 0;
  border: 2px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  width: fit-content;
}
.num-btn {
  width: 44px; height: 44px;
  border: none;
  background: var(--bg-light);
  cursor: pointer;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--navy);
  transition: background var(--transition);
}
.num-btn:hover { background: var(--orange); color: white; }
.num-input {
  width: 64px;
  height: 44px;
  border: none;
  border-left: 2px solid var(--border);
  border-right: 2px solid var(--border);
  text-align: center;
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 1rem;
  color: var(--navy);
  outline: none;
}

/* Checkbox grid */
.checkbox-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.checkbox-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border: 2px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.88rem;
  color: var(--text);
  transition: all var(--transition);
  font-family: 'Open Sans', sans-serif;
}
.checkbox-item input { width: 16px; height: 16px; accent-color: var(--orange); }
.checkbox-item:hover { border-color: var(--orange); background: rgba(232,114,26,0.04); }

/* Toggle tabs */
.toggle-tabs {
  display: flex;
  background: var(--bg-light);
  border-radius: 8px;
  padding: 4px;
  width: fit-content;
}
.toggle-tab {
  padding: 10px 24px;
  border: none;
  background: transparent;
  cursor: pointer;
  border-radius: 6px;
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--text-muted);
  transition: all var(--transition);
}
.toggle-tab.active {
  background: var(--white);
  color: var(--navy);
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

/* Size cards */
.size-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}
.size-card { cursor: pointer; }
.size-card input { display: none; }
.size-card-inner {
  border: 2px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 12px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  transition: all var(--transition);
}
.size-card input:checked + .size-card-inner {
  border-color: var(--orange);
  background: rgba(232,114,26,0.06);
}
.size-card-inner:hover { border-color: var(--orange); }
.size-card-inner strong { font-family: 'Montserrat', sans-serif; font-weight: 700; font-size: 0.88rem; color: var(--navy); }
.size-sqm { font-size: 1.1rem; font-family: 'Montserrat', sans-serif; font-weight: 800; color: var(--orange); }
.size-desc { font-size: 0.75rem; color: var(--text-muted); }

/* Upload zone */
.upload-zone {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 40px;
  text-align: center;
  cursor: pointer;
  position: relative;
  transition: all var(--transition);
}
.upload-zone:hover, .upload-zone.dragover {
  border-color: var(--orange);
  background: rgba(232,114,26,0.04);
}
.upload-input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
  width: 100%;
  height: 100%;
}
.upload-content i { color: var(--orange); margin-bottom: 12px; }
.upload-content p { color: var(--text-muted); margin-bottom: 6px; font-size: 0.9rem; }
.upload-hint { font-size: 0.82rem !important; }
.upload-formats { font-size: 0.78rem !important; color: #aaa !important; margin-top: 6px; }
.upload-success {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--green);
}
.upload-success p { color: var(--text); font-size: 0.9rem; }
.remove-file {
  background: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 4px 12px;
  font-size: 0.78rem;
  cursor: pointer;
  color: var(--text-muted);
  transition: all var(--transition);
}
.remove-file:hover { border-color: #e74c3c; color: #e74c3c; }
.calc-preview {
  background: rgba(41,128,185,0.08);
  border: 1px solid rgba(41,128,185,0.2);
  border-radius: 8px;
  padding: 12px 16px;
  font-size: 0.88rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 8px;
}
.calc-preview i { color: var(--blue-acc); }
.calc-preview strong { color: var(--navy); font-size: 1rem; }

/* Finish cards */
.finish-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.finish-card {
  cursor: pointer;
  position: relative;
}
.finish-card input { display: none; }
.finish-popular-badge {
  position: absolute;
  top: -10px; left: 50%;
  transform: translateX(-50%);
  background: var(--orange);
  color: white;
  font-size: 0.7rem;
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  padding: 3px 14px;
  border-radius: 50px;
  white-space: nowrap;
  z-index: 1;
}
.finish-card-inner {
  border: 2px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: all var(--transition);
  height: 100%;
}
.finish-card input:checked + .finish-card-inner {
  border-color: var(--orange);
  background: rgba(232,114,26,0.04);
}
.finish-card-inner:hover { border-color: var(--orange); }
.finish-card.featured .finish-card-inner {
  border-color: var(--orange);
  background: rgba(232,114,26,0.04);
}
.finish-header {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--orange);
}
.finish-header strong { font-family: 'Montserrat', sans-serif; font-size: 1rem; color: var(--navy); margin-left: 4px; }
.finish-list { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.finish-list li { font-size: 0.82rem; color: var(--text-muted); display: flex; align-items: center; gap: 8px; }
.finish-list i { color: var(--green); font-size: 0.7rem; flex-shrink: 0; }
.finish-price-hint {
  font-size: 0.78rem;
  color: var(--orange);
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  border-top: 1px solid var(--border);
  padding-top: 10px;
  margin-top: auto;
}

/* Location note */
.location-note {
  background: rgba(41,128,185,0.08);
  border: 1px solid rgba(41,128,185,0.2);
  border-radius: 8px;
  padding: 16px;
  display: flex;
  gap: 12px;
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.6;
}
.location-note i { color: var(--blue-acc); flex-shrink: 0; margin-top: 2px; }

/* Radio row */
.radio-row {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}
.radio-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  cursor: pointer;
  color: var(--text);
}
.radio-item input { accent-color: var(--orange); }

/* Consent checkbox */
.checkbox-consent {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  cursor: pointer;
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.6;
}
.checkbox-consent input { width: 18px; height: 18px; flex-shrink: 0; accent-color: var(--orange); margin-top: 2px; }

/* Step navigation */
.step-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

/* Estimate result */
.estimate-header {
  text-align: center;
  margin-bottom: 36px;
}
.estimate-icon {
  width: 72px; height: 72px;
  background: rgba(232,114,26,0.12);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--orange);
  font-size: 1.8rem;
  margin: 0 auto 20px;
}
.estimate-header h3 { font-size: 1.8rem; color: var(--navy); margin-bottom: 10px; }
.estimate-disclaimer { font-size: 0.85rem; color: var(--text-muted); max-width: 500px; margin: 0 auto; line-height: 1.6; }

.estimate-summary-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 36px;
}
.summary-item {
  background: var(--bg-light);
  padding: 16px 20px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.summary-label { font-size: 0.72rem; color: var(--text-muted); font-family: 'Montserrat', sans-serif; font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; }
.summary-value { font-size: 0.9rem; color: var(--navy); font-family: 'Montserrat', sans-serif; font-weight: 700; }

.estimate-cost-display {
  text-align: center;
  background: var(--navy);
  border-radius: var(--radius);
  padding: 40px;
  margin-bottom: 36px;
  color: white;
}
.cost-range-label { font-size: 0.85rem; opacity: 0.7; margin-bottom: 12px; font-family: 'Montserrat', sans-serif; text-transform: uppercase; letter-spacing: 1px; }
.cost-range { display: flex; align-items: center; justify-content: center; gap: 16px; margin-bottom: 12px; flex-wrap: wrap; }
.cost-from, .cost-to {
  font-family: 'Montserrat', sans-serif;
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  color: var(--orange-lt);
}
.cost-to-label { font-size: 1.5rem; opacity: 0.6; }
.cost-note { font-size: 0.8rem; opacity: 0.6; }

.cost-breakdown { margin-bottom: 24px; }
.cost-breakdown h4, .estimate-extras h4 {
  font-size: 1rem;
  color: var(--navy);
  margin-bottom: 16px;
  font-family: 'Montserrat', sans-serif;
}
.breakdown-table { display: flex; flex-direction: column; gap: 2px; }
.breakdown-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  background: var(--bg-light);
  border-radius: 6px;
  font-size: 0.88rem;
}
.breakdown-row.total {
  background: var(--navy);
  color: white;
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 0.95rem;
  border-radius: 8px;
}
.breakdown-label { color: var(--text-muted); }
.breakdown-row.total .breakdown-label { color: rgba(255,255,255,0.8); }
.breakdown-value { font-family: 'Montserrat', sans-serif; font-weight: 700; color: var(--navy); }
.breakdown-row.total .breakdown-value { color: var(--orange-lt); }

.estimate-note-box {
  background: rgba(39,174,96,0.08);
  border: 1px solid rgba(39,174,96,0.25);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  gap: 14px;
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 32px;
}
.estimate-note-box i { color: var(--green); font-size: 1.1rem; flex-shrink: 0; }
.estimate-note-box strong { color: var(--text); }

.estimate-cta { text-align: center; }
.estimate-cta p { color: var(--text-muted); margin-bottom: 20px; font-size: 0.9rem; line-height: 1.6; }
.estimate-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* ── CONTACT ── */
.contact-section { background: var(--white); }
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 64px;
  align-items: start;
}
.contact-card {
  background: var(--navy);
  border-radius: var(--radius);
  padding: 36px;
  display: flex;
  flex-direction: column;
  gap: 28px;
  margin-bottom: 24px;
}
.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}
.contact-icon {
  width: 44px; height: 44px;
  background: rgba(232,114,26,0.2);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--orange);
  flex-shrink: 0;
  font-size: 1rem;
}
.contact-info-item strong { font-family: 'Montserrat', sans-serif; font-size: 0.9rem; color: white; display: block; margin-bottom: 4px; }
.contact-info-item p { font-size: 0.85rem; color: rgba(255,255,255,0.6); margin: 0; line-height: 1.5; }
.social-links { display: flex; gap: 12px; }
.social-btn {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--bg-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--navy);
  font-size: 0.95rem;
  transition: all var(--transition);
  border: 2px solid var(--border);
}
.social-btn:hover { background: var(--orange); color: white; border-color: var(--orange); }
.contact-form-wrap {
  background: var(--bg-light);
  border-radius: var(--radius);
  padding: 40px;
}
.form-feedback {
  margin-top: 16px;
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 0.88rem;
  text-align: center;
}
.form-feedback.success { background: rgba(39,174,96,0.1); color: var(--green); border: 1px solid rgba(39,174,96,0.3); }
.form-feedback.error { background: rgba(231,76,60,0.1); color: #e74c3c; border: 1px solid rgba(231,76,60,0.3); }

/* ── FOOTER ── */
.footer { background: var(--navy); color: rgba(255,255,255,0.75); }
.footer-top { padding: 80px 0 48px; }
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 48px;
}
.footer-brand p { font-size: 0.88rem; line-height: 1.8; margin: 20px 0 24px; color: rgba(255,255,255,0.55); }
.footer-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(232,114,26,0.15);
  border: 1px solid rgba(232,114,26,0.3);
  color: var(--orange-lt);
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 0.78rem;
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
}
.footer-links h4, .footer-contact h4 {
  font-family: 'Montserrat', sans-serif;
  font-size: 0.9rem;
  font-weight: 700;
  color: white;
  margin-bottom: 20px;
  letter-spacing: 0.5px;
}
.footer-links ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-links a { font-size: 0.85rem; color: rgba(255,255,255,0.55); transition: color var(--transition); }
.footer-links a:hover { color: var(--orange-lt); }
.footer-contact p {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.55);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.footer-contact i { color: var(--orange); width: 16px; }
.footer-social { display: flex; gap: 10px; margin-top: 20px; }
.footer-social a {
  width: 36px; height: 36px;
  border-radius: 8px;
  background: rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.6);
  font-size: 0.85rem;
  transition: all var(--transition);
}
.footer-social a:hover { background: var(--orange); color: white; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 20px 0;
}
.footer-bottom .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}
.footer-bottom p { font-size: 0.8rem; color: rgba(255,255,255,0.4); }
.footer-bottom a { color: var(--orange-lt); }

/* ── BACK TO TOP ── */
.back-to-top {
  position: fixed;
  bottom: 32px; right: 32px;
  width: 48px; height: 48px;
  border-radius: 50%;
  background: var(--orange);
  color: white;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  box-shadow: var(--shadow);
  opacity: 0;
  transform: translateY(20px);
  transition: all var(--transition);
  z-index: 999;
}
.back-to-top.visible { opacity: 1; transform: translateY(0); }
.back-to-top:hover { background: #d06315; transform: translateY(-3px); }

/* ── ANIMATIONS ── */
@keyframes fadeIn { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: translateY(0); } }
@keyframes bounce { 0%,100% { transform: translateX(-50%) translateY(0); } 50% { transform: translateX(-50%) translateY(-10px); } }

/* Hero animations — triggered by JS adding .visible immediately on load */
.hero .animate-fade-up { opacity: 0; transform: translateY(32px); transition: opacity 0.7s ease, transform 0.7s ease; }
.hero .animate-fade-up.visible { opacity: 1; transform: translateY(0); }

/* Scroll-triggered animations for below-the-fold sections */
.animate-fade-up { opacity: 0; transform: translateY(32px); transition: opacity 0.7s ease, transform 0.7s ease; }
.animate-fade-up.visible { opacity: 1; transform: translateY(0); }
.animate-left { opacity: 0; transform: translateX(-40px); transition: opacity 0.7s ease, transform 0.7s ease; }
.animate-left.visible { opacity: 1; transform: translateX(0); }
.animate-right { opacity: 0; transform: translateX(40px); transition: opacity 0.7s ease, transform 0.7s ease; }
.animate-right.visible { opacity: 1; transform: translateX(0); }
.animate-up { opacity: 0; transform: translateY(40px); transition: opacity 0.7s ease, transform 0.7s ease; }
.animate-up.visible { opacity: 1; transform: translateY(0); }

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }

/* ── RESPONSIVE ── */
@media (max-width: 1024px) {
  .cards-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
  .about-grid { gap: 40px; }
}

@media (max-width: 768px) {
  .section { padding: 64px 0; }
  .nav-links, .nav-cta { display: none; }
  .hamburger { display: flex; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 70px; left: 0; right: 0;
    background: rgba(13,33,55,0.98);
    padding: 24px;
    gap: 20px;
  }
  .about-grid { grid-template-columns: 1fr; }
  .about-img-wrapper { display: none; }
  .services-grid { grid-template-columns: 1fr; }
  .cards-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .option-cards { grid-template-columns: 1fr; }
  .finish-cards { grid-template-columns: 1fr; }
  .size-cards { grid-template-columns: repeat(2, 1fr); }
  .blockmaster-partner { flex-direction: column; gap: 24px; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom .container { flex-direction: column; text-align: center; }
  .hero-stats { gap: 20px; }
  .stat-divider { display: none; }
  .stat { padding: 0; }
  .estimate-summary-bar { grid-template-columns: 1fr 1fr; }
  .calc-body { padding: 24px; }
  .calc-progress { padding: 20px; }
  .progress-step span { display: none; }
  .checkbox-grid { grid-template-columns: 1fr; }
  .estimate-actions { flex-direction: column; }
}

@media (max-width: 480px) {
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .size-cards { grid-template-columns: 1fr 1fr; }
  .estimate-summary-bar { grid-template-columns: 1fr; }
}