/**
 * ISANGE MODERN ALUMINIUM LTD — Main Stylesheet v2 (Redesign)
 * Frontend only — no PHP/backend logic touched.
 * Same class hooks as before so existing templates keep working;
 * we'll refine markup page-by-page next.
 */

/* ===================================================================
   BASE / RESET
=================================================================== */
* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  color: var(--color-text-body);
  background-color: var(--color-white);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: var(--fw-bold);
  color: var(--color-navy);
  line-height: var(--lh-tight);
  letter-spacing: -0.01em;
  margin: 0 0 var(--space-sm);
}

p { margin: 0 0 var(--space-sm); color: var(--color-text-body); }
a { text-decoration: none; transition: color var(--transition-fast); }
img { max-width: 100%; display: block; }
.container { max-width: var(--container-max); }

section { padding: var(--space-2xl) 0; }
.section-sm { padding: var(--space-xl) 0; }
.bg-light-gray { background-color: var(--color-bg-light); }
.bg-navy { background-color: var(--color-navy); color: var(--color-text-on-navy); }
.bg-navy h1, .bg-navy h2, .bg-navy h3, .bg-navy h4, .bg-navy p { color: var(--color-white); }
.bg-navy .text-muted { color: var(--color-text-on-navy-muted) !important; }

/* ===================================================================
   TYPOGRAPHY / SECTION TITLES
=================================================================== */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-size: var(--fs-xs);
  font-weight: var(--fw-bold);
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--color-orange);
  margin-bottom: var(--space-xs);
}
.eyebrow::before {
  content: '';
  width: 22px;
  height: 2px;
  background: var(--color-orange);
  display: inline-block;
}

.section-title {
  font-size: var(--fs-h2);
  margin-bottom: var(--space-xs);
  letter-spacing: -0.02em;
}
.section-title .highlight { color: var(--color-orange); }

.section-subtitle {
  color: var(--color-text-muted);
  max-width: 620px;
  font-size: 1.02rem;
  margin: 0 auto var(--space-lg);
}
.text-center .section-subtitle { margin-left: auto; margin-right: auto; }

/* ===================================================================
   BUTTONS
=================================================================== */
.btn {
  font-family: var(--font-body);
  font-weight: var(--fw-semibold);
  font-size: 0.92rem;
  padding: 0.85rem 1.9rem;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  border: 1.5px solid transparent;
  letter-spacing: -0.01em;
}

.btn-brand {
  background-color: var(--color-orange);
  color: var(--color-white);
  border-color: var(--color-orange);
  box-shadow: 0 8px 20px rgba(242, 121, 28, 0.28);
}
.btn-brand:hover {
  background-color: var(--color-orange-dark);
  border-color: var(--color-orange-dark);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(242, 121, 28, 0.35);
}

.btn-outline-light-nav {
  background: rgba(255, 255, 255, 0.04);
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.35);
  backdrop-filter: blur(6px);
}
.btn-outline-light-nav:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--color-white);
  color: var(--color-white);
  transform: translateY(-2px);
}

.btn-outline-navy {
  background: transparent;
  color: var(--color-navy);
  border-color: var(--color-border-strong);
}
.btn-outline-navy:hover {
  background: var(--color-navy);
  border-color: var(--color-navy);
  color: var(--color-white);
  transform: translateY(-2px);
}

.btn-link-arrow {
  color: var(--color-navy);
  font-weight: var(--fw-semibold);
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0;
  border-bottom: 1.5px solid var(--color-border-strong);
  padding-bottom: 2px;
}
.btn-link-arrow i { transition: transform var(--transition-fast); font-size: 0.85rem; }
.btn-link-arrow:hover { color: var(--color-orange); border-color: var(--color-orange); }
.btn-link-arrow:hover i { transform: translateX(4px); }

.btn-icon-whatsapp {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--color-orange-tint);
  color: var(--color-orange);
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 1.15rem;
  transition: all var(--transition-fast);
}
.btn-icon-whatsapp:hover { background: var(--color-orange); color: var(--color-white); transform: scale(1.08); }

/* ===================================================================
   TOPBAR
=================================================================== */
.topbar {
  background: var(--color-navy);
  color: var(--color-text-on-navy-muted);
  font-size: var(--fs-xs);
  padding: 10px 0;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.topbar-contact span { margin-right: 1.75rem; display: inline-flex; align-items: center; gap: 6px; }
.topbar-contact a { color: var(--color-text-on-navy-muted); }
.topbar-contact a:hover { color: var(--color-orange); }
.topbar-contact i { color: var(--color-orange); font-size: 0.85rem; }
.topbar-social a {
  color: var(--color-text-on-navy-muted);
  margin-left: 16px;
  font-size: 0.92rem;
  transition: color var(--transition-fast);
}
.topbar-social a:hover { color: var(--color-orange); }

/* ===================================================================
   NAVBAR
=================================================================== */
.site-navbar {
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(10px);
  box-shadow: 0 1px 0 var(--color-border);
  min-height: var(--navbar-height);
  z-index: 1030;
  transition: box-shadow var(--transition-fast);
}
.site-navbar.scrolled { box-shadow: var(--shadow-card); }
.site-navbar .navbar { min-height: var(--navbar-height); padding: 0; }

.navbar-brand img { height: 68px; max-width: 240px; width: auto; }

.nav-link {
  font-family: var(--font-body);
  font-weight: var(--fw-medium);
  font-size: 0.88rem;
  letter-spacing: -0.01em;
  color: var(--color-text-body) !important;
  padding: 1.7rem 1.1rem !important;
  position: relative;
  transition: color var(--transition-fast);
}
.nav-link.active,
.nav-link:hover { color: var(--color-navy) !important; }
.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 20px; left: 1.1rem; right: 1.1rem;
  height: 2px;
  background: var(--color-orange);
  border-radius: 2px;
}

/* ===================================================================
   HERO
=================================================================== */
.hero {
  position: relative;
  background-color: var(--color-navy);
  background-size: cover;
  background-position: center;
  color: var(--color-white);
  padding: var(--space-2xl) 0 calc(var(--space-2xl) + 70px);
  min-height: 680px;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(12,26,46,0.95) 0%, rgba(12,26,46,0.78) 45%, rgba(12,26,46,0.4) 100%),
    linear-gradient(0deg, rgba(12,26,46,0.3) 0%, transparent 30%);
}
.hero::after {
  content: '';
  position: absolute;
  top: -20%; right: -10%;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(242,121,28,0.15) 0%, transparent 70%);
  pointer-events: none;
}
.hero .container { position: relative; z-index: 2; }

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--color-orange-light);
  font-weight: var(--fw-semibold);
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: var(--space-sm);
}

.hero-title {
  font-size: var(--fs-hero);
  font-weight: var(--fw-extrabold);
  color: var(--color-white);
  max-width: 660px;
  margin-bottom: var(--space-sm);
  letter-spacing: -0.02em;
}
.hero-title .highlight { color: var(--color-orange); }

.hero-subtext {
  font-size: 1.1rem;
  color: var(--color-text-on-navy-muted);
  max-width: 520px;
  margin-bottom: var(--space-md);
  line-height: 1.7;
}

.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; }

/* ===================================================================
   STATS BAR
=================================================================== */
.stats-bar {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-stat-bar);
  margin-top: -78px;
  position: relative;
  z-index: 3;
  padding: var(--space-md) var(--space-lg);
  border: 1px solid rgba(255,255,255,0.5);
}
.stat-item { display: flex; align-items: center; gap: 16px; }
.stat-icon {
  width: 54px; height: 54px;
  border-radius: var(--radius-sm);
  background: var(--color-orange-tint);
  color: var(--color-orange);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
}
.stat-number {
  font-family: var(--font-numbers);
  font-size: var(--fs-stat);
  font-weight: var(--fw-extrabold);
  color: var(--color-navy);
  line-height: 1;
  letter-spacing: -0.02em;
}
.stat-label {
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
  font-weight: var(--fw-medium);
  margin-top: 2px;
}

/* ===================================================================
   CARDS — Services
=================================================================== */
.card-service {
  background: var(--color-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-xs);
  transition: all var(--transition-base);
  height: 100%;
  border: 1px solid var(--color-border);
}
.card-service:hover {
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-6px);
  border-color: transparent;
}
.card-service-img { position: relative; overflow: hidden; height: 210px; background: var(--color-bg-soft); }
.card-service-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s var(--ease-standard); }
.card-service:hover .card-service-img img { transform: scale(1.08); }

.card-service-icon {
  width: 58px; height: 58px;
  border-radius: var(--radius-sm);
  background: var(--color-navy);
  color: var(--color-white);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem;
  position: absolute;
  bottom: -29px; left: 22px;
  box-shadow: 0 10px 24px rgba(12, 26, 46, 0.3);
  transition: background var(--transition-fast);
}
.card-service:hover .card-service-icon { background: var(--color-orange); }

.card-service-body { padding: 42px 22px 24px; }
.card-service-body h4 { font-size: 1.1rem; margin-bottom: 8px; letter-spacing: -0.01em; }
.card-service-body p { color: var(--color-text-muted); font-size: 0.92rem; margin-bottom: 14px; }

/* Category quick-cards */
.card-category {
  background: var(--color-white);
  border-radius: var(--radius-md);
  padding: var(--space-md) var(--space-sm);
  text-align: center;
  border: 1px solid var(--color-border);
  transition: all var(--transition-base);
  height: 100%;
}
.card-category:hover { box-shadow: var(--shadow-card-hover); transform: translateY(-4px); border-color: transparent; }
.card-category .icon-badge {
  width: 62px; height: 62px;
  border-radius: 50%;
  background: var(--color-orange-tint);
  color: var(--color-orange);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.65rem;
  margin: 0 auto var(--space-xs);
  transition: all var(--transition-fast);
}
.card-category.active { background: var(--color-navy); border-color: var(--color-navy); }
.card-category.active .icon-badge { background: var(--color-orange); color: var(--color-white); }
.card-category.active p { color: var(--color-text-on-navy-muted); }
.card-category.active h6 { color: var(--color-white); }

/* Product card */
.card-product {
  background: var(--color-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: all var(--transition-base);
  height: 100%;
}
.card-product:hover { box-shadow: var(--shadow-card-hover); transform: translateY(-6px); border-color: transparent; }
.card-product-img { height: 200px; overflow: hidden; background: var(--color-bg-soft); }
.card-product-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s var(--ease-standard); }
.card-product:hover .card-product-img img { transform: scale(1.08); }
.card-product-body { padding: 18px 20px; }
.card-product-body h5 { font-size: 1rem; margin-bottom: 4px; letter-spacing: -0.01em; }
.card-product-body p { font-size: 0.85rem; color: var(--color-text-muted); margin: 0; }

/* Project card */
.card-project { position: relative; border-radius: var(--radius-md); overflow: hidden; height: 300px; display: block; }
.card-project img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.7s var(--ease-standard); }
.card-project:hover img { transform: scale(1.1); }
.card-project-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(12,26,46,0.92) 0%, rgba(12,26,46,0.15) 60%, transparent 100%);
  display: flex; align-items: flex-end;
  padding: 24px;
}
.card-project-overlay h5 { color: var(--color-white); margin-bottom: 4px; font-size: 1.05rem; }
.card-project-overlay span { color: var(--color-text-on-navy-muted); font-size: 0.85rem; display: inline-flex; align-items: center; gap: 5px; }

/* Filter pills */
.filter-pills { display: flex; flex-wrap: wrap; gap: 10px; }
.filter-pill {
  padding: 9px 22px;
  border-radius: var(--radius-pill);
  border: 1.5px solid var(--color-border);
  background: var(--color-white);
  color: var(--color-text-body);
  font-size: 0.86rem;
  font-weight: var(--fw-medium);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.filter-pill:hover { border-color: var(--color-navy); color: var(--color-navy); }
.filter-pill.active { background: var(--color-navy); border-color: var(--color-navy); color: var(--color-white); }

/* ===================================================================
   WHY CHOOSE US
=================================================================== */
.why-choose { background: var(--color-navy); color: var(--color-white); position: relative; overflow: hidden; }
.why-choose::before {
  content: '';
  position: absolute;
  bottom: -30%; left: -5%;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(242,121,28,0.08) 0%, transparent 70%);
}
.why-item { display: flex; gap: 18px; align-items: flex-start; position: relative; z-index: 1; }
.why-icon {
  width: 56px; height: 56px;
  border-radius: var(--radius-sm);
  background: rgba(242, 121, 28, 0.12);
  color: var(--color-orange);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.35rem;
  flex-shrink: 0;
}
.why-item h5 { color: var(--color-white); font-size: 1.02rem; margin-bottom: 6px; }
.why-item p { color: var(--color-text-on-navy-muted); font-size: 0.88rem; margin: 0; line-height: 1.6; }

/* ===================================================================
   TESTIMONIALS
=================================================================== */
.testimonial-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  height: 100%;
  transition: all var(--transition-base);
}
.testimonial-card:hover { box-shadow: var(--shadow-card-hover); transform: translateY(-4px); }
.testimonial-rating { color: var(--color-orange); font-size: 0.85rem; margin-bottom: 14px; }
.testimonial-msg { font-size: 0.98rem; color: var(--color-text-dark); margin-bottom: var(--space-sm); line-height: 1.75; }
.testimonial-client { display: flex; align-items: center; gap: 12px; padding-top: var(--space-xs); border-top: 1px solid var(--color-border); }
.testimonial-client img { width: 46px; height: 46px; border-radius: 50%; object-fit: cover; }
.testimonial-client strong { display: block; font-size: 0.9rem; color: var(--color-navy); }
.testimonial-client span { font-size: 0.78rem; color: var(--color-text-muted); }

/* ===================================================================
   CTA BAND
=================================================================== */
.cta-band {
  background: linear-gradient(120deg, var(--color-navy) 0%, var(--color-navy-soft) 100%);
  color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-lg) var(--space-xl);
  position: relative;
  overflow: hidden;
}
.cta-band::after {
  content: '';
  position: absolute;
  top: -50%; right: -5%;
  width: 350px; height: 350px;
  background: radial-gradient(circle, rgba(242,121,28,0.18) 0%, transparent 70%);
}
.cta-band h3 { color: var(--color-white); margin-bottom: 4px; font-size: 1.5rem; position: relative; z-index: 1; }
.cta-band p { color: var(--color-text-on-navy-muted); margin-bottom: 0; position: relative; z-index: 1; }
.cta-band .btn { position: relative; z-index: 1; }

/* ===================================================================
   FOOTER
=================================================================== */
.site-footer { background: var(--color-navy); color: var(--color-text-on-navy-muted); }
.footer-top { padding: var(--space-2xl) 0 var(--space-lg); }
.footer-logo { display: inline-block; margin-bottom: var(--space-sm); }
.footer-logo img { height: 52px; }
.footer-about { font-size: 0.9rem; margin-bottom: var(--space-sm); line-height: 1.7; }
.footer-social a {
  width: 38px; height: 38px;
  border-radius: 50%;
  background: rgba(255,255,255,0.06);
  color: var(--color-white);
  display: inline-flex; align-items: center; justify-content: center;
  margin-right: 8px;
  font-size: 0.9rem;
  transition: all var(--transition-fast);
}
.footer-social a:hover { background: var(--color-orange); transform: translateY(-2px); }

.footer-heading { color: var(--color-white); font-size: 0.98rem; margin-bottom: var(--space-sm); font-weight: var(--fw-semibold); }
.footer-links { list-style: none; padding: 0; margin: 0; }
.footer-links li { margin-bottom: 11px; }
.footer-links a { color: var(--color-text-on-navy-muted); font-size: 0.89rem; transition: all var(--transition-fast); }
.footer-links a:hover { color: var(--color-orange); padding-left: 3px; }

.footer-contact { list-style: none; padding: 0; margin: 0; }
.footer-contact li { display: flex; gap: 10px; margin-bottom: 13px; font-size: 0.89rem; align-items: flex-start; }
.footer-contact i { color: var(--color-orange); margin-top: 3px; flex-shrink: 0; }
.footer-contact a { color: var(--color-text-on-navy-muted); }
.footer-contact a:hover { color: var(--color-orange); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: var(--space-sm) 0;
  font-size: 0.84rem;
}
.footer-legal a { color: var(--color-text-on-navy-muted); }
.footer-legal a:hover { color: var(--color-orange); }
.footer-legal .divider { margin: 0 10px; color: rgba(255,255,255,0.25); }

/* ===================================================================
   FLOATING ELEMENTS
=================================================================== */
.back-to-top {
  position: fixed; bottom: 26px; right: 26px;
  width: 46px; height: 46px;
  border-radius: 50%;
  background: var(--color-navy);
  color: var(--color-white);
  border: none;
  display: none;
  align-items: center; justify-content: center;
  z-index: 999;
  box-shadow: var(--shadow-elevated);
  transition: all var(--transition-fast);
}
.back-to-top:hover { background: var(--color-orange); transform: translateY(-3px); }
.back-to-top.show { display: flex; }

.whatsapp-float {
  position: fixed; bottom: 26px; left: 26px;
  width: 56px; height: 56px;
  border-radius: 50%;
  background: #25D366;
  color: var(--color-white);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.6rem;
  z-index: 999;
  box-shadow: var(--shadow-elevated);
  transition: transform var(--transition-fast);
}
.whatsapp-float:hover { color: var(--color-white); transform: scale(1.08); }

/* ===================================================================
   SCROLL ANIMATION HOOKS
=================================================================== */
.fade-up { opacity: 0; transform: translateY(28px); transition: opacity 0.7s var(--ease-standard), transform 0.7s var(--ease-standard); }
.fade-up.in-view { opacity: 1; transform: translateY(0); }

/* ===================================================================
   PAGE HEADER (interior pages)
=================================================================== */
.page-header {
  background: var(--color-navy);
  background-size: cover;
  background-position: center;
  position: relative;
  padding: var(--space-xl) 0;
  color: var(--color-white);
  text-align: center;
  overflow: hidden;
}
.page-header::before { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(12,26,46,0.9) 0%, rgba(12,26,46,0.75) 100%); }
.page-header .container { position: relative; z-index: 2; }
.page-header h1 { color: var(--color-white); margin-bottom: 10px; font-size: var(--fs-h1); }
.breadcrumb-nav { font-size: 0.86rem; color: var(--color-text-on-navy-muted); }
.breadcrumb-nav a { color: var(--color-text-on-navy-muted); }
.breadcrumb-nav a:hover { color: var(--color-orange); }
.breadcrumb-nav .active { color: var(--color-orange); }