/* ================================================================
   O & I MONTAGE SERVICES — PREMIUM DESIGN SYSTEM v2.0
   Identity: Glass · Licht · Präzision
   Duisburg & NRW  |  oundimontageservices.com
   ================================================================ */

/* ── 1. Variables ─────────────────────────────────────────────── */
:root {
  --bg:         #040c18;
  --bg2:        #071528;
  --bg3:        #0c1f38;
  --glass:      rgba(255,255,255,0.04);
  --glass2:     rgba(255,255,255,0.08);
  --border:     rgba(255,255,255,0.07);
  --border2:    rgba(255,255,255,0.13);
  --blue:       #0d6efd;
  --blue-dark:  #0a55d4;
  --blue-glow:  rgba(13,110,253,0.22);
  --gold:       #d4a843;
  --gold-light: #e8c56a;
  --gold-glow:  rgba(212,168,67,0.14);
  --white:      #ffffff;
  --text:       #8ba4bc;
  --muted:      #465f77;
  --radius:     14px;
  --radius-lg:  22px;
  --shadow:     0 28px 80px rgba(0,0,0,0.55);
  --ease:       cubic-bezier(0.4,0,0.2,1);
}

/* ── 2. Base ──────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }

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

/* Custom scrollbar */
::-webkit-scrollbar         { width: 5px; }
::-webkit-scrollbar-track   { background: var(--bg); }
::-webkit-scrollbar-thumb   { background: var(--blue); border-radius: 3px; }

/* Selection */
::selection { background: var(--gold); color: #000; }

/* ── 3. Preloader ─────────────────────────────────────────────── */
#oi-preloader {
  position: fixed; inset: 0; z-index: 99999;
  background: var(--bg);
  display: flex; align-items: center; justify-content: center;
  flex-direction: column; gap: 28px;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}
#oi-preloader.hidden { opacity: 0; visibility: hidden; pointer-events: none; }
.preload-brand {
  font-family: 'Roboto', sans-serif;
  font-size: 2.2rem; font-weight: 700;
  color: #fff; letter-spacing: 0.35em; text-transform: uppercase;
}
.preload-brand span { color: var(--gold); }
.preload-track  { width: 180px; height: 2px; background: var(--border2); border-radius: 2px; overflow: hidden; }
.preload-fill   { height: 100%; width: 0; background: linear-gradient(90deg, var(--blue), var(--gold)); animation: pfill 1.6s var(--ease) forwards; }
@keyframes pfill { to { width: 100%; } }
.preload-tagline { font-size: 11px; color: var(--muted); letter-spacing: 0.25em; text-transform: uppercase; }

/* ── 4. Custom Cursor ─────────────────────────────────────────── */
.oi-cursor {
  width: 8px; height: 8px; background: var(--blue);
  border-radius: 50%; position: fixed; pointer-events: none;
  z-index: 9999; transform: translate(-50%,-50%);
  transition: width 0.2s, height 0.2s, background 0.2s;
}
.oi-cursor-ring {
  width: 32px; height: 32px;
  border: 1.5px solid rgba(13,110,253,0.5);
  border-radius: 50%; position: fixed; pointer-events: none;
  z-index: 9998; transform: translate(-50%,-50%);
  transition: transform 0.1s var(--ease), width 0.3s, height 0.3s;
}
.oi-cursor.grow  { width: 18px; height: 18px; background: var(--gold); }
.oi-cursor-ring.grow { width: 52px; height: 52px; border-color: rgba(212,168,67,0.4); }
@media (hover: none) { .oi-cursor, .oi-cursor-ring { display: none; } }

/* ── 5. Topbar ────────────────────────────────────────────────── */
.oi-topbar {
  background: #020810;
  border-bottom: 1px solid var(--border);
  padding: 9px 0;
}
.oi-topbar-inner {
  max-width: 1320px; margin: 0 auto;
  padding: 0 40px;
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 10px;
}
.oi-topbar-item {
  display: flex; align-items: center; gap: 10px;
  color: var(--muted); font-size: 13px; text-decoration: none;
  transition: color 0.2s;
}
.oi-topbar-item:hover { color: var(--gold); }
.oi-topbar-item i { color: var(--blue); font-size: 14px; }
.oi-topbar-right { display: flex; gap: 24px; align-items: center; }
.oi-topbar-social a {
  color: var(--muted); font-size: 13px; margin-left: 14px;
  transition: color 0.2s;
}
.oi-topbar-social a:hover { color: var(--gold); }

/* ── 6. Navbar ────────────────────────────────────────────────── */
.oi-navbar {
  position: sticky; top: 0; z-index: 1000;
  background: rgba(4,12,24,0.82);
  backdrop-filter: blur(22px);
  -webkit-backdrop-filter: blur(22px);
  border-bottom: 1px solid var(--border);
  padding: 14px 40px;
  transition: padding 0.3s ease, background 0.3s ease, box-shadow 0.3s ease;
}
.oi-navbar.sticky-solid {
  padding: 10px 40px;
  background: rgba(2,8,16,0.97);
  box-shadow: 0 4px 40px rgba(0,0,0,0.6);
}
.oi-navbar-inner { max-width: 1320px; margin: 0 auto; }
.oi-brand { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.oi-brand img { height: 36px; }
.oi-brand-name {
  font-family: 'Roboto', sans-serif; font-weight: 700;
  color: #fff; font-size: 1.2rem; letter-spacing: 0.12em; text-transform: uppercase;
}
.oi-brand-name span { color: var(--gold); }

.oi-nav-link {
  color: #7a9ab8 !important;
  font-size: 12px; font-weight: 700;
  letter-spacing: 0.1em; text-transform: uppercase;
  padding: 8px 14px !important;
  border-radius: 8px;
  position: relative;
  transition: color 0.25s ease !important;
}
.oi-nav-link::after {
  content: ''; position: absolute;
  bottom: 2px; left: 50%; right: 50%;
  height: 1.5px; background: var(--gold);
  transition: left 0.3s ease, right 0.3s ease;
}
.oi-nav-link:hover, .oi-nav-link.active { color: #fff !important; }
.oi-nav-link:hover::after, .oi-nav-link.active::after { left: 14px; right: 14px; }

.oi-nav-cta {
  background: linear-gradient(135deg, var(--blue) 0%, var(--blue-dark) 100%);
  color: #fff !important;
  padding: 10px 22px !important;
  border-radius: 50px;
  font-size: 12px; font-weight: 700; letter-spacing: 0.06em;
  box-shadow: 0 4px 20px var(--blue-glow);
  transition: transform 0.3s ease, box-shadow 0.3s ease !important;
}
.oi-nav-cta:hover { transform: translateY(-2px); box-shadow: 0 8px 28px var(--blue-glow) !important; color: #fff !important; }
.oi-nav-cta::after { display: none; }
.navbar-toggler { border-color: var(--border2) !important; }
.navbar-toggler-icon { filter: invert(0.7); }

/* ── 7. Hero ──────────────────────────────────────────────────── */
.oi-hero {
  min-height: 100vh;
  background: var(--bg);
  position: relative; overflow: hidden;
  display: flex; align-items: center;
}

/* Background image layer */
.hero-bg-img {
  position: absolute; inset: 0;
  background-image: url('../img/carousel-1.jpg');
  background-size: cover; background-position: center 30%;
  opacity: 0.14;
  animation: hero-drift 18s ease-in-out infinite alternate;
}
@keyframes hero-drift {
  from { transform: scale(1.06); opacity: 0.14; }
  to   { transform: scale(1.0);  opacity: 0.20; }
}

/* Glass roof light shafts */
.hero-shafts { position: absolute; inset: 0; overflow: hidden; pointer-events: none; }
.shaft {
  position: absolute;
  top: -20%; height: 140%;
  background: linear-gradient(to bottom, transparent 0%, rgba(212,168,67,0.08) 40%, rgba(212,168,67,0.04) 70%, transparent 100%);
  border-radius: 50%;
  animation: shaft-pulse 6s ease-in-out infinite;
}
.shaft::after {
  content: ''; position: absolute; inset: 0;
  background: inherit; filter: blur(12px); opacity: 0.6;
}
.s1 { left: 8%;  width: 2px;  transform: rotate(12deg);  animation-delay: 0s; }
.s2 { left: 22%; width: 4px;  transform: rotate(7deg);   animation-delay: 1.5s; opacity: 0.8; }
.s3 { left: 40%; width: 2px;  transform: rotate(-4deg);  animation-delay: 3s; }
.s4 { left: 60%; width: 5px;  transform: rotate(10deg);  animation-delay: 0.8s; opacity: 0.7; }
.s5 { left: 75%; width: 2px;  transform: rotate(-7deg);  animation-delay: 2.5s; }
.s6 { left: 90%; width: 3px;  transform: rotate(5deg);   animation-delay: 1s; opacity: 0.6; }
@keyframes shaft-pulse {
  0%, 100% { opacity: 0.3; }
  50%       { opacity: 0.9; }
}

/* Floating gold particles */
.hero-particles { position: absolute; inset: 0; pointer-events: none; }
.particle {
  position: absolute;
  width: 2px; height: 2px;
  background: var(--gold); border-radius: 50%;
  animation: particle-rise linear infinite;
  opacity: 0;
}
@keyframes particle-rise {
  0%   { transform: translateY(0) translateX(0);  opacity: 0; }
  10%  { opacity: 0.7; }
  90%  { opacity: 0.3; }
  100% { transform: translateY(-70vh) translateX(20px); opacity: 0; }
}

/* Grid overlay for depth */
.hero-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.oi-hero-content {
  position: relative; z-index: 4;
  padding: 0 0 0 60px;
  max-width: 720px;
}

.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  background: var(--gold-glow);
  border: 1px solid rgba(212,168,67,0.25);
  color: var(--gold);
  font-size: 11px; font-weight: 700; letter-spacing: 0.18em; text-transform: uppercase;
  padding: 7px 18px; border-radius: 50px;
  margin-bottom: 30px;
  backdrop-filter: blur(10px);
}

.hero-h1 {
  font-family: 'Roboto', sans-serif;
  font-size: clamp(3.2rem, 7vw, 5.8rem);
  font-weight: 700; color: #fff;
  line-height: 1.0; letter-spacing: -0.03em;
  margin-bottom: 0;
}
.hero-h1 .line-accent {
  display: block;
  background: linear-gradient(110deg, var(--blue) 0%, var(--gold) 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: 1.05rem; color: #7a9ab8;
  line-height: 1.75; max-width: 520px;
  margin: 26px 0 42px;
}

.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 58px; }

.btn-primary-oi {
  display: inline-flex; align-items: center; gap: 10px;
  background: linear-gradient(135deg, var(--blue) 0%, #0848c8 100%);
  color: #fff; font-weight: 700; font-size: 15px;
  padding: 17px 36px; border-radius: 50px; text-decoration: none;
  box-shadow: 0 10px 35px var(--blue-glow);
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease), color 0.2s;
  border: none; cursor: pointer;
}
.btn-primary-oi:hover { transform: translateY(-4px); box-shadow: 0 18px 50px rgba(13,110,253,0.5); color: #fff; }
.btn-primary-oi .arrow { transition: transform 0.3s ease; }
.btn-primary-oi:hover .arrow { transform: translateX(5px); }

.btn-ghost-oi {
  display: inline-flex; align-items: center; gap: 10px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.14);
  color: #fff; font-weight: 600; font-size: 15px;
  padding: 17px 36px; border-radius: 50px; text-decoration: none;
  backdrop-filter: blur(10px);
  transition: background 0.3s ease, color 0.2s, transform 0.3s ease;
}
.btn-ghost-oi:hover { background: rgba(255,255,255,0.1); color: #fff; transform: translateY(-3px); }

/* Hero stats */
.hero-stats { display: flex; gap: 44px; flex-wrap: wrap; }
.hero-stat { text-align: left; }
.hero-stat-num {
  font-family: 'Roboto', sans-serif;
  font-size: 2.2rem; font-weight: 700; color: #fff; line-height: 1;
  display: block;
}
.hero-stat-num .gold-num { color: var(--gold); }
.hero-stat-desc {
  font-size: 11px; color: var(--muted);
  letter-spacing: 0.08em; text-transform: uppercase; font-weight: 700;
  display: block; margin-top: 6px;
}

/* Scroll cue */
.hero-scroll-cue {
  position: absolute; bottom: 36px; left: 60px; z-index: 4;
  display: flex; align-items: center; gap: 16px;
  color: var(--muted); font-size: 11px; font-weight: 700; letter-spacing: 0.18em; text-transform: uppercase;
}
.scroll-bar { width: 42px; height: 1px; background: var(--muted); position: relative; overflow: hidden; }
.scroll-bar::after {
  content: ''; position: absolute; left: -100%; top: 0; width: 100%;
  height: 100%; background: var(--gold);
  animation: scrollbar-sweep 2.2s ease-in-out infinite;
}
@keyframes scrollbar-sweep { to { left: 100%; } }

/* Hero right image panel */
.hero-right-panel {
  position: absolute; right: 0; top: 0; bottom: 0;
  width: 40%; z-index: 2; overflow: hidden;
}
.hero-right-panel::before {
  content: ''; position: absolute; inset: 0; z-index: 2;
  background: linear-gradient(90deg, var(--bg) 0%, rgba(4,12,24,0.3) 100%);
}
.hero-right-panel img { width: 100%; height: 100%; object-fit: cover; opacity: 0.4; }

/* ── 8. Trust Bar ─────────────────────────────────────────────── */
.oi-trustbar {
  background: var(--bg2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.trustbar-grid {
  max-width: 1320px; margin: 0 auto;
  padding: 0 40px;
  display: grid; grid-template-columns: repeat(4, 1fr);
}
.trustbar-item {
  display: flex; align-items: center; gap: 16px;
  padding: 22px 24px;
  border-right: 1px solid var(--border);
  transition: background 0.3s ease;
}
.trustbar-item:last-child { border-right: none; }
.trustbar-item:hover { background: var(--glass); }
.t-icon {
  width: 42px; height: 42px; flex-shrink: 0;
  background: var(--gold-glow);
  border: 1px solid rgba(212,168,67,0.2);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  color: var(--gold); font-size: 17px;
}
.t-title { font-weight: 700; font-size: 13px; color: #fff; line-height: 1.2; }
.t-sub   { font-size: 11px; color: var(--muted); margin-top: 2px; }

/* ── 9. Section Utilities ─────────────────────────────────────── */
.oi-sec          { padding: 100px 0; }
.oi-sec-dark     { background: var(--bg); }
.oi-sec-mid      { background: var(--bg2); }
.oi-sec-light    { background: #f4f7ff; }
.oi-inner        { max-width: 1320px; margin: 0 auto; padding: 0 40px; }

.sec-tag {
  display: inline-block;
  font-size: 10px; font-weight: 700; letter-spacing: 0.25em; text-transform: uppercase;
  color: var(--gold);
  padding: 5px 14px; border: 1px solid rgba(212,168,67,0.3); border-radius: 50px;
  margin-bottom: 14px;
}

.sec-h-dark {
  font-family: 'Roboto', sans-serif;
  font-size: clamp(1.9rem, 3.5vw, 2.9rem);
  font-weight: 700; color: #fff; line-height: 1.12; letter-spacing: -0.02em;
  margin-bottom: 16px;
}
.sec-h-light {
  font-family: 'Roboto', sans-serif;
  font-size: clamp(1.9rem, 3.5vw, 2.9rem);
  font-weight: 700; color: #0f1e30; line-height: 1.12; letter-spacing: -0.02em;
  margin-bottom: 16px;
}
.sec-h-dark  .acc { color: var(--blue); }
.sec-h-light .acc { color: var(--blue); }
.sec-h-dark  .gold-acc { color: var(--gold); }
.sec-h-light .gold-acc { color: var(--gold); }

.sec-body-dark  { color: #5a7a96; font-size: 15px; line-height: 1.8; }
.sec-body-light { color: #4a6070; font-size: 15px; line-height: 1.8; }

/* ── 10. About / Identity Section ────────────────────────────── */
.about-img-wrap {
  position: relative; height: 100%; min-height: 460px;
  border-radius: var(--radius-lg); overflow: hidden;
  box-shadow: var(--shadow);
}
.about-img-wrap img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.7s ease; }
.about-img-wrap:hover img { transform: scale(1.04); }
.about-img-badge {
  position: absolute; bottom: 24px; left: 24px;
  background: rgba(4,12,24,0.9);
  border: 1px solid rgba(212,168,67,0.3);
  border-radius: var(--radius);
  padding: 18px 22px;
  backdrop-filter: blur(16px);
}
.aib-num {
  font-family: 'Roboto', sans-serif;
  font-size: 2.4rem; font-weight: 700; color: var(--gold); line-height: 1;
}
.aib-label { font-size: 11px; color: #4a6278; text-transform: uppercase; font-weight: 700; letter-spacing: 0.1em; margin-top: 4px; }

.about-check-list { list-style: none; padding: 0; margin: 0; }
.about-check-list li {
  display: flex; align-items: flex-start; gap: 14px;
  font-size: 14px; color: #6a8899; line-height: 1.6;
  padding: 10px 0; border-bottom: 1px solid var(--border);
}
.about-check-list li:last-child { border-bottom: none; }
.about-check-list li::before {
  content: '';
  width: 22px; height: 22px; flex-shrink: 0;
  background: var(--blue-glow);
  border: 1px solid rgba(13,110,253,0.3);
  border-radius: 50%;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12'%3E%3Cpath d='M2 6l3 3 5-5' stroke='%230d6efd' stroke-width='1.5' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: center;
  margin-top: 1px;
}

/* Stats row */
.stats-row {
  display: grid; grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg); overflow: hidden;
  margin-top: 48px; background: var(--border);
  gap: 1px;
}
.stat-box {
  background: var(--bg3);
  padding: 32px 20px; text-align: center;
  transition: background 0.3s ease;
}
.stat-box:hover { background: #0e2440; }
.stat-num {
  font-family: 'Roboto', sans-serif;
  font-size: 2.8rem; font-weight: 700; color: #fff; line-height: 1;
  display: block;
}
.stat-num .g { color: var(--gold); }
.stat-label {
  font-size: 10px; color: var(--muted);
  letter-spacing: 0.12em; text-transform: uppercase; font-weight: 700;
  display: block; margin-top: 8px;
}

/* ── 11. Featured Service Hero (Terrassenüberdachung) ─────────── */
.oi-featured-service {
  position: relative; border-radius: var(--radius-lg);
  overflow: hidden; min-height: 460px;
  border: 1px solid rgba(212,168,67,0.2);
  box-shadow: 0 0 0 1px rgba(212,168,67,0.08), var(--shadow);
}
.oi-featured-service > img {
  position: absolute; inset: 0;
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.7s ease; opacity: 0.55;
}
.oi-featured-service:hover > img { transform: scale(1.05); }
.oi-featured-service::before {
  content: ''; position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(135deg, rgba(4,12,24,0.96) 0%, rgba(4,12,24,0.75) 50%, rgba(4,12,24,0.4) 100%);
}
.featured-service-body {
  position: relative; z-index: 2;
  padding: 48px;
  height: 100%; display: flex; flex-direction: column; justify-content: flex-end;
}
.feat-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(212,168,67,0.12);
  border: 1px solid rgba(212,168,67,0.3);
  color: var(--gold); font-size: 10px; font-weight: 700; letter-spacing: 0.2em;
  padding: 5px 14px; border-radius: 50px; margin-bottom: 16px;
  width: fit-content;
}
.feat-title {
  font-family: 'Roboto', sans-serif;
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 700; color: #fff; line-height: 1.1;
  margin-bottom: 16px; letter-spacing: -0.02em;
}
.feat-desc { font-size: 15px; color: #7a9ab8; line-height: 1.75; margin-bottom: 28px; max-width: 520px; }
.feat-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 32px; }
.feat-tag {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  color: #c8dae8; font-size: 12px; font-weight: 600;
  padding: 5px 14px; border-radius: 50px;
}

/* ── 12. Service Cards ────────────────────────────────────────── */
.oi-svc-card {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden; height: 100%;
  position: relative;
  transition: transform 0.35s var(--ease), border-color 0.35s ease, box-shadow 0.35s ease;
}
.oi-svc-card::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, var(--blue-glow) 0%, transparent 60%);
  opacity: 0; transition: opacity 0.35s ease;
}
.oi-svc-card:hover {
  transform: translateY(-8px);
  border-color: rgba(13,110,253,0.28);
  box-shadow: 0 20px 60px rgba(0,0,0,0.5), 0 0 0 1px rgba(13,110,253,0.15);
}
.oi-svc-card:hover::before { opacity: 1; }
.svc-img { height: 190px; overflow: hidden; position: relative; }
.svc-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.7s ease; }
.oi-svc-card:hover .svc-img img { transform: scale(1.08); }
.svc-img-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(4,12,24,0.92) 0%, transparent 55%);
}
.svc-icon {
  position: absolute; bottom: 14px; left: 16px;
  width: 40px; height: 40px;
  background: linear-gradient(135deg, var(--blue), var(--blue-dark));
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 17px;
  box-shadow: 0 4px 16px var(--blue-glow);
}
.svc-body { padding: 20px 22px 26px; position: relative; z-index: 1; }
.svc-title { font-weight: 700; font-size: 14px; color: #fff; margin-bottom: 10px; line-height: 1.35; }
.svc-text  { font-size: 13px; color: var(--muted); line-height: 1.7; margin: 0; }
.svc-cat-label {
  display: flex; align-items: center; gap: 8px;
  font-size: 11px; font-weight: 700; letter-spacing: 0.15em; text-transform: uppercase;
  color: var(--blue); margin-bottom: 20px;
}
.svc-cat-label::before { content: ''; flex: 1; height: 1px; background: var(--border); }
.svc-cat-label::after  { content: ''; width: 24px; height: 1px; background: var(--border); }

/* ── 13. Weather Demo (Unique Feature) ───────────────────────── */
.oi-weather-section {
  background: var(--bg);
  padding: 100px 0; position: relative; overflow: hidden;
}
.oi-weather-section::before {
  content: ''; position: absolute; inset: 0;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(13,110,253,0.05) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 50%, rgba(212,168,67,0.04) 0%, transparent 60%);
  pointer-events: none;
}
.weather-compare {
  position: relative; height: 520px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  user-select: none;
  cursor: ew-resize;
}
.wc-panel {
  position: absolute; top: 0; bottom: 0;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  overflow: hidden;
}
.wc-before { left: 0; width: 50%; z-index: 2; }
.wc-after  { left: 0; right: 0; z-index: 1; }

.wc-before-bg {
  position: absolute; inset: 0;
  background: linear-gradient(160deg, #0a1825 0%, #0d2235 100%);
}
.wc-after-bg {
  position: absolute; inset: 0;
  background: linear-gradient(160deg, #102040 0%, #1a3b6e 100%);
}
/* Sunshine glow on "with roof" side */
.wc-sun-glow {
  position: absolute; top: -40%; left: 50%;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(255,220,80,0.18) 0%, transparent 70%);
  transform: translateX(-50%);
  animation: sun-pulse 3s ease-in-out infinite;
}
@keyframes sun-pulse {
  0%, 100% { opacity: 0.6; transform: translateX(-50%) scale(1); }
  50%       { opacity: 1; transform: translateX(-50%) scale(1.1); }
}
/* Sun rays on right side */
.sun-ray {
  position: absolute; top: 0; left: 50%;
  width: 2px; height: 60%;
  background: linear-gradient(to bottom, rgba(255,220,80,0.15), transparent);
  transform-origin: top center;
  animation: ray-fade 3s ease-in-out infinite;
}
@keyframes ray-fade { 0%, 100% { opacity: 0.3; } 50% { opacity: 0.8; } }

#rain-canvas {
  position: absolute; inset: 0; z-index: 3; pointer-events: none;
}

.wc-label {
  position: absolute; z-index: 10;
  top: 20px;
  background: rgba(0,0,0,0.65);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.12);
  color: #fff; font-size: 12px; font-weight: 700;
  letter-spacing: 0.08em; text-transform: uppercase;
  padding: 8px 18px; border-radius: 50px;
}
.wc-label-l { left: 20px; }
.wc-label-r { right: 20px; z-index: 3; }

.wc-tagline {
  position: absolute; bottom: 28px; z-index: 10;
  color: #fff; font-size: 1.1rem; font-weight: 700;
  text-align: center; line-height: 1.4;
  text-shadow: 0 2px 12px rgba(0,0,0,0.8);
}
.wc-tagline-l { left: 5%; right: 52%; }
.wc-tagline-r { left: 52%; right: 5%; }
.wc-tagline-r .highlight { color: var(--gold); }

/* Divider */
.wc-divider {
  position: absolute; top: 0; bottom: 0;
  left: 50%; z-index: 20;
  width: 3px;
  background: #fff;
  transform: translateX(-50%);
  pointer-events: none;
}
.wc-handle {
  position: absolute; top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 48px; height: 48px;
  background: #fff; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: var(--blue); font-size: 18px;
  box-shadow: 0 4px 24px rgba(0,0,0,0.5);
  cursor: ew-resize; pointer-events: all;
}

/* ── 14. Process Section ─────────────────────────────────────── */
.oi-process-section { background: #f4f7ff; padding: 100px 0; }

.process-line-wrap {
  position: relative; margin-bottom: 48px;
  display: flex; align-items: center;
}
.process-line {
  position: absolute; top: 50%; left: 0; right: 0;
  height: 2px; background: linear-gradient(90deg, var(--blue), var(--gold));
  z-index: 0; opacity: 0.25;
}
.process-num-wrap {
  position: relative; z-index: 1;
  display: flex; gap: 0;
  justify-content: space-between; width: 100%;
}

.proc-card {
  background: #fff;
  border: 1px solid #e4eaf6;
  border-radius: var(--radius);
  padding: 32px 26px;
  height: 100%;
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
  position: relative; overflow: hidden;
}
.proc-card::after {
  content: '';
  position: absolute; bottom: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--blue), var(--gold));
  transform: scaleX(0); transform-origin: left;
  transition: transform 0.4s var(--ease);
}
.proc-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 50px rgba(13,110,253,0.12);
  border-color: rgba(13,110,253,0.15);
}
.proc-card:hover::after { transform: scaleX(1); }
.proc-num {
  font-family: 'Roboto', sans-serif;
  font-size: 3.5rem; font-weight: 700; line-height: 1;
  color: rgba(13,110,253,0.1); margin-bottom: 18px;
  display: block;
}
.proc-card:hover .proc-num { color: rgba(13,110,253,0.2); }
.proc-icon {
  width: 48px; height: 48px;
  background: linear-gradient(135deg, var(--blue-glow), rgba(13,110,253,0.05));
  border: 1px solid rgba(13,110,253,0.2);
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  color: var(--blue); font-size: 20px; margin-bottom: 18px;
}
.proc-title { font-weight: 700; font-size: 14px; color: #1a2940; margin-bottom: 10px; }
.proc-text  { font-size: 13px; color: #5a6f82; line-height: 1.7; margin: 0; }

/* ── 15. Portfolio ───────────────────────────────────────────── */
.oi-portfolio-section { background: var(--bg2); padding: 100px 0; }

.portfolio-filters {
  display: flex; flex-wrap: wrap; gap: 8px;
  justify-content: center; margin-bottom: 44px;
}
.pf-btn {
  background: var(--glass);
  border: 1px solid var(--border);
  color: var(--muted); font-size: 11px; font-weight: 700;
  letter-spacing: 0.1em; text-transform: uppercase;
  padding: 8px 18px; border-radius: 50px;
  cursor: pointer; transition: all 0.25s ease;
}
.pf-btn:hover, .pf-btn.active {
  background: var(--blue); border-color: var(--blue); color: #fff;
}

.oi-port-item { margin-bottom: 20px; }
.oi-port-box {
  position: relative;
  border-radius: var(--radius); overflow: hidden;
  border: 1px solid var(--border);
}
.oi-port-box img {
  width: 100%; height: 260px; object-fit: cover; display: block;
  transition: transform 0.6s ease;
}
.oi-port-box:hover img { transform: scale(1.08); }
.oi-port-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(4,12,24,0.96) 0%, transparent 55%);
  opacity: 0; transition: opacity 0.35s ease;
  display: flex; align-items: flex-end; padding: 22px;
}
.oi-port-box:hover .oi-port-overlay { opacity: 1; }
.port-title-ov {
  color: #fff; font-weight: 700; font-size: 13px;
  text-transform: uppercase; letter-spacing: 0.06em;
}
.port-zoom {
  position: absolute; top: 14px; right: 14px;
  width: 38px; height: 38px;
  background: var(--blue); border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 18px;
  opacity: 0; transform: scale(0.6);
  transition: all 0.3s ease;
  text-decoration: none;
}
.oi-port-box:hover .port-zoom { opacity: 1; transform: scale(1); }

/* ── 16. Testimonials ───────────────────────────────────────── */
.oi-testi-section { background: var(--bg); padding: 100px 0; }

.oi-testi-card {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px; height: 100%;
  position: relative; overflow: hidden;
  transition: transform 0.3s ease, border-color 0.3s ease;
}
.oi-testi-card::before {
  content: '\201C';
  position: absolute; top: 8px; left: 22px;
  font-size: 8rem; line-height: 1; color: rgba(13,110,253,0.07);
  font-family: Georgia, serif; pointer-events: none;
}
.oi-testi-card:hover { transform: translateY(-5px); border-color: rgba(13,110,253,0.2); }

.testi-stars { color: var(--gold); font-size: 13px; margin-bottom: 16px; letter-spacing: 2px; }
.testi-text  {
  font-size: 15px; color: #7a9ab8; line-height: 1.85;
  margin-bottom: 28px; font-style: italic;
}
.testi-author { display: flex; align-items: center; gap: 16px; }
.testi-author img { width: 50px; height: 50px; border-radius: 50%; object-fit: cover; border: 2px solid var(--blue); }
.testi-name { font-weight: 700; color: #fff; font-size: 14px; }
.testi-role { font-size: 12px; color: var(--muted); margin-top: 2px; }

/* ── 17. Contact / Callback Section ─────────────────────────── */
.oi-contact-section { background: var(--bg2); padding: 100px 0; }

.contact-card {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 48px;
  backdrop-filter: blur(10px);
  height: 100%;
}

.oi-input {
  background: rgba(255,255,255,0.04) !important;
  border: 1px solid rgba(255,255,255,0.09) !important;
  color: #fff !important;
  border-radius: 10px !important;
  padding: 14px 18px !important;
  font-size: 14px !important;
  transition: border-color 0.3s ease, background 0.3s ease, box-shadow 0.3s ease !important;
  height: auto !important;
}
.oi-input::placeholder { color: #3a5570 !important; }
.oi-input:focus {
  border-color: var(--blue) !important;
  background: rgba(255,255,255,0.07) !important;
  box-shadow: 0 0 0 3px var(--blue-glow) !important;
  outline: none !important;
}

.btn-submit-oi {
  width: 100%; background: linear-gradient(135deg, var(--blue) 0%, var(--blue-dark) 100%);
  border: none; color: #fff; font-weight: 700; font-size: 15px;
  padding: 16px 32px; border-radius: 50px;
  box-shadow: 0 10px 35px var(--blue-glow);
  transition: transform 0.3s ease, box-shadow 0.3s ease; cursor: pointer;
  display: flex; align-items: center; justify-content: center; gap: 10px;
}
.btn-submit-oi:hover { transform: translateY(-3px); box-shadow: 0 18px 48px rgba(13,110,253,0.5); }

.contact-info-row {
  display: flex; gap: 18px; align-items: flex-start;
  padding: 20px 0; border-bottom: 1px solid var(--border);
}
.contact-info-row:first-child { padding-top: 0; }
.contact-info-row:last-child  { border-bottom: none; padding-bottom: 0; }
.ci-icon {
  width: 46px; height: 46px; flex-shrink: 0;
  background: rgba(13,110,253,0.08); border: 1px solid rgba(13,110,253,0.2);
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  color: var(--blue); font-size: 18px;
}
.ci-label { font-size: 10px; color: var(--muted); text-transform: uppercase; font-weight: 700; letter-spacing: 0.1em; margin-bottom: 3px; }
.ci-value { font-size: 15px; color: #fff; font-weight: 600; }
.ci-value a { color: #fff; text-decoration: none; transition: color 0.2s; }
.ci-value a:hover { color: var(--gold); }

/* ── 18. Footer ─────────────────────────────────────────────── */
.oi-footer {
  background: #020810;
  padding: 76px 0 0;
  border-top: 1px solid var(--border);
}
.footer-brand-name {
  font-family: 'Roboto', sans-serif;
  font-weight: 700; font-size: 1.3rem; color: #fff;
  letter-spacing: 0.12em; text-transform: uppercase;
}
.footer-brand-name span { color: var(--gold); }
.footer-desc { font-size: 13px; color: var(--muted); line-height: 1.85; margin: 16px 0 26px; }
.footer-head { font-size: 10px; font-weight: 700; letter-spacing: 0.22em; text-transform: uppercase; color: var(--gold); margin-bottom: 20px; }
.footer-link {
  display: flex; align-items: center; gap: 6px;
  color: var(--muted); font-size: 13px; text-decoration: none;
  padding: 5px 0; transition: color 0.2s, gap 0.2s;
}
.footer-link::before { content: '→'; opacity: 0; transition: opacity 0.2s; font-size: 11px; color: var(--gold); }
.footer-link:hover { color: #fff; gap: 12px; }
.footer-link:hover::before { opacity: 1; }

.footer-social-link {
  width: 40px; height: 40px;
  background: var(--glass); border: 1px solid var(--border);
  border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--muted); font-size: 15px; text-decoration: none;
  transition: all 0.3s ease;
}
.footer-social-link:hover {
  background: var(--blue); border-color: var(--blue);
  color: #fff; transform: translateY(-3px);
  box-shadow: 0 8px 20px var(--blue-glow);
}

.footer-bottom {
  border-top: 1px solid var(--border);
  margin-top: 56px; padding: 24px 0;
}
.footer-copy   { font-size: 12px; color: #2a4050; }
.footer-copy a { color: var(--blue); text-decoration: none; }
.footer-legal  { display: flex; gap: 20px; flex-wrap: wrap; }
.footer-legal a { font-size: 12px; color: #2a4050; text-decoration: none; transition: color 0.2s; }
.footer-legal a:hover { color: var(--gold); }

/* ── 19. Back-to-Top ─────────────────────────────────────────── */
.oi-btt {
  position: fixed; bottom: 28px; right: 28px; z-index: 990;
  width: 46px; height: 46px;
  background: linear-gradient(135deg, var(--blue), var(--blue-dark));
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 17px; text-decoration: none;
  box-shadow: 0 6px 22px var(--blue-glow);
  opacity: 0; visibility: hidden; transform: translateY(20px);
  transition: all 0.35s var(--ease);
}
.oi-btt.show { opacity: 1; visibility: visible; transform: translateY(0); }
.oi-btt:hover { color: #fff; transform: translateY(-4px); box-shadow: 0 10px 32px rgba(13,110,253,0.6); }

/* ── 20. Reveal Animations ───────────────────────────────────── */
.reveal {
  opacity: 0; transform: translateY(36px);
  transition: opacity 0.75s var(--ease), transform 0.75s var(--ease);
}
.reveal.in { opacity: 1; transform: translateY(0); }
.reveal-d1 { transition-delay: 0.1s; }
.reveal-d2 { transition-delay: 0.2s; }
.reveal-d3 { transition-delay: 0.3s; }
.reveal-d4 { transition-delay: 0.4s; }

/* ── 21. Responsive ──────────────────────────────────────────── */
@media (max-width: 1200px) {
  .oi-inner { padding: 0 28px; }
  .hero-right-panel { width: 35%; }
}
@media (max-width: 991px) {
  .oi-sec { padding: 72px 0; }
  .oi-hero-content { padding: 120px 28px 80px; max-width: 100%; }
  .hero-right-panel { display: none; }
  .hero-scroll-cue { left: 28px; }
  .oi-inner { padding: 0 20px; }
  .trustbar-grid { grid-template-columns: repeat(2,1fr); }
  .trustbar-item:nth-child(2) { border-right: none; }
  .stats-row { grid-template-columns: repeat(2,1fr); }
  .weather-compare { height: auto; flex-direction: column; display: flex; }
  .wc-before, .wc-after { position: relative; width: 100%; height: 260px; flex-shrink: 0; }
  .wc-divider { display: none; }
  .oi-topbar-right { display: none; }
}
@media (max-width: 576px) {
  .hero-actions { flex-direction: column; }
  .hero-stats { gap: 24px; }
  .stats-row { grid-template-columns: 1fr 1fr; }
  .trustbar-grid { grid-template-columns: 1fr; }
  .trustbar-item { border-right: none; border-bottom: 1px solid var(--border); }
  .trustbar-item:last-child { border-bottom: none; }
  .contact-card { padding: 28px 20px; }
  .oi-footer { padding: 56px 0 0; }
}