/* ==========================================================================
   UZKYPET CONSTRUCTION LIMITED - CORPORATE DESIGN SYSTEM & STYLESHEET
   Domain: https://uzkypet.com
   Positioning: Nigerian Indigenous EPCIC&M Solutions Provider
   Stack: Vanilla HTML5 + CSS3 + Vanilla JavaScript (No Frameworks)
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. DESIGN TOKENS & CSS CUSTOM PROPERTIES
   -------------------------------------------------------------------------- */
@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&family=Plus+Jakarta+Sans:wght@600;700;800&display=swap');

:root {
  --color-navy-darkest: #050E1A;
  --color-navy-dark: #0A192F;
  --color-navy: #0F2342;
  --color-navy-surface: #142C52;
  --color-navy-light: #1E3A68;
  --color-orange: #E65C00;
  --color-orange-bright: #FF6B00;
  --color-orange-hover: #CC5200;
  --color-orange-soft: rgba(230, 92, 0, 0.12);
  --color-white: #FFFFFF;
  --color-light-bg: #F4F6F9;
  --color-light-surface: #FFFFFF;
  --color-light-alt: #EBF0F6;
  --color-text-dark: #0F172A;
  --color-text-muted: #475569;
  --color-text-light: #F8FAFC;
  --color-text-light-muted: #94A3B8;
  --color-border-light: #E2E8F0;
  --color-border-dark: rgba(255, 255, 255, 0.12);
  --color-teal-accent: #0D9488;
  --font-heading: 'Plus Jakarta Sans', 'Manrope', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Manrope', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-size-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --font-size-sm: clamp(0.875rem, 0.83rem + 0.25vw, 1rem);
  --font-size-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --font-size-lg: clamp(1.125rem, 1.05rem + 0.35vw, 1.25rem);
  --font-size-xl: clamp(1.35rem, 1.2rem + 0.75vw, 1.75rem);
  --font-size-2xl: clamp(1.75rem, 1.5rem + 1.25vw, 2.25rem);
  --font-size-3xl: clamp(2.25rem, 1.8rem + 2vw, 3.25rem);
  --font-size-4xl: clamp(2.75rem, 2.2rem + 2.75vw, 4.25rem);
  --container-width: 1280px;
  --container-padding: clamp(1.25rem, 3vw, 2.5rem);
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;
  --space-3xl: 8rem;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --shadow-sm: 0 2px 4px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 12px 24px -4px rgba(15, 23, 42, 0.12);
  --shadow-dark: 0 16px 32px rgba(5, 14, 26, 0.4);
  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

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

img, video, svg { max-width: 100%; height: auto; }

a { transition: color var(--transition-fast); }

button, input, select, textarea { font: inherit; }

:focus-visible { outline: 2px solid var(--color-orange); outline-offset: 3px; }

.container {
  width: 100%;
  max-width: var(--container-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.h1 { font-size: var(--font-size-4xl) !important; font-weight: 800 !important; }
.h2 { font-size: var(--font-size-3xl) !important; font-weight: 800 !important; }
.h3 { font-size: var(--font-size-2xl) !important; font-weight: 700 !important; }
.h4 { font-size: var(--font-size-xl) !important; font-weight: 700 !important; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-heading);
  font-size: var(--font-size-xs) !important;
  font-weight: 700 !important;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-orange);
  margin-bottom: var(--space-xs);
}

.eyebrow::before {
  content: '';
  display: inline-block;
  width: 1.5rem;
  height: 2px;
  background-color: var(--color-orange);
}

.lead { font-size: var(--font-size-lg); line-height: 1.5; opacity: 0.9; }

.section-header { max-width: 800px; margin-bottom: var(--space-xl); }
.section-header--center { margin-left: auto; margin-right: auto; text-align: center; }
.section-header--center .eyebrow { justify-content: center; }
.section-header--center .eyebrow::before { display: none; }

.section-dark { background-color: var(--color-navy-dark); color: var(--color-text-light); }
.section-dark .eyebrow { color: var(--color-orange-bright); }
.section-light { background-color: var(--color-light-bg); color: var(--color-text-dark); }
.section-white { background-color: var(--color-white); color: var(--color-text-dark); }

/* Buttons */
.btn, .elementor-button {
  display: inline-flex !important;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 0.875rem 1.75rem !important;
  font-family: var(--font-heading) !important;
  font-size: var(--font-size-sm) !important;
  font-weight: 700 !important;
  letter-spacing: 0.02em;
  border-radius: var(--radius-sm) !important;
  border: 1px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition-fast);
}
.btn--primary { background-color: var(--color-orange); color: var(--color-white); box-shadow: 0 4px 14px rgba(230, 92, 0, 0.35); }
.btn--primary:hover { background-color: var(--color-orange-hover); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(230, 92, 0, 0.45); }
.btn--secondary { background-color: transparent; color: var(--color-white); border-color: rgba(255, 255, 255, 0.3); }
.btn--secondary:hover { background-color: rgba(255, 255, 255, 0.1); border-color: var(--color-white); transform: translateY(-2px); }
.btn--outline-navy { background-color: transparent; color: var(--color-navy); border-color: var(--color-navy); }
.btn--outline-navy:hover { background-color: var(--color-navy); color: var(--color-white); transform: translateY(-2px); }
.btn-icon { width: 1.125rem; height: 1.125rem; fill: currentColor; transition: transform var(--transition-fast); }
.btn:hover .btn-icon { transform: translateX(4px); }

.card { background-color: var(--color-white); border: 1px solid var(--color-border-light); border-radius: var(--radius-md); padding: var(--space-lg); transition: all var(--transition-normal); }
.card--dark { background-color: var(--color-navy); border-color: var(--color-border-dark); color: var(--color-text-light); }
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.card--dark:hover { border-color: rgba(230, 92, 0, 0.4); box-shadow: var(--shadow-dark); }

/* Header */
.site-header { position: sticky; top: 0; left: 0; right: 0; z-index: 1000; background-color: rgba(10, 25, 47, 0.95); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); border-bottom: 1px solid rgba(255, 255, 255, 0.08); }
.header__container { display: flex; align-items: center; justify-content: space-between; height: 80px; flex-wrap: nowrap; }
.brand-logo { display: flex; align-items: center; gap: 0.875rem; }
.brand-logo__img { width: 44px; height: 44px; border-radius: var(--radius-sm); object-fit: cover; }
.brand-logo__text { display: flex; flex-direction: column; }
.brand-logo__name { font-family: var(--font-heading); font-size: 1.125rem !important; font-weight: 800 !important; letter-spacing: -0.01em; color: var(--color-white) !important; line-height: 1.1; }
.brand-logo__name span { color: var(--color-orange); }
.brand-logo__tagline { font-size: 0.7rem; font-weight: 600; letter-spacing: 0.05em; color: var(--color-text-light-muted); text-transform: uppercase; }
.nav-menu { display: flex; align-items: center; gap: 2rem; list-style: none; margin: 0; padding: 0; }
.nav-menu li { list-style: none; }
.nav-menu__link { position: relative; font-family: var(--font-heading); font-size: var(--font-size-sm); font-weight: 600; color: var(--color-text-light-muted); padding: 0.5rem 0; text-decoration: none; display: inline-block; }
.nav-menu__link:hover, .nav-menu__link--active { color: var(--color-white); }
.nav-menu__link::after { content: ''; position: absolute; bottom: 0; left: 0; width: 0; height: 2px; background-color: var(--color-orange); transition: width var(--transition-fast); }
.nav-menu__link:hover::after, .nav-menu__link--active::after { width: 100%; }
.header__actions { display: flex; align-items: center; gap: 1rem; }
.mobile-nav-toggle { display: none; background: none; border: none; color: var(--color-white); cursor: pointer; padding: 0.5rem; z-index: 1002; }
.mobile-nav-toggle svg { width: 28px; height: 28px; fill: currentColor; }
.mobile-menu { position: fixed; top: 0; right: -100%; width: 85%; max-width: 400px; height: 100vh; background-color: var(--color-navy-darkest); z-index: 1001; padding: 6rem 2rem 3rem; display: flex; flex-direction: column; justify-content: space-between; transition: right var(--transition-normal); box-shadow: -10px 0 30px rgba(0, 0, 0, 0.5); }
.mobile-menu.is-active { right: 0; }
.mobile-menu__backdrop { position: fixed; inset: 0; background-color: rgba(5, 14, 26, 0.7); backdrop-filter: blur(4px); z-index: 1000; opacity: 0; visibility: hidden; transition: all var(--transition-normal); }
.mobile-menu__backdrop.is-active { opacity: 1; visibility: visible; }
.mobile-menu__links { display: flex; flex-direction: column; gap: 1.5rem; }
.mobile-menu__link { font-family: var(--font-heading); font-size: 1.35rem; font-weight: 700; color: var(--color-text-light); border-bottom: 1px solid rgba(255, 255, 255, 0.08); padding-bottom: 1rem; text-decoration: none; display: block; }
.mobile-menu__link--active { color: var(--color-orange); }

/* Hero */
.hero { position: relative; background-color: var(--color-navy-darkest); color: var(--color-text-light); padding-top: clamp(4rem, 8vw, 7rem); padding-bottom: clamp(4rem, 8vw, 7rem); overflow: hidden; }
.hero__title { margin-top: var(--space-xs); margin-bottom: var(--space-md); color: var(--color-white) !important; }
.hero__subtitle { font-size: var(--font-size-xl) !important; font-weight: 600 !important; color: var(--color-orange-bright) !important; margin-bottom: var(--space-sm); line-height: 1.3; }
.hero__paragraph { font-size: var(--font-size-base); color: var(--color-text-light-muted); margin-bottom: var(--space-lg); max-width: 640px; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 1rem; }
.hero__badge-card { background-color: rgba(15, 35, 66, 0.85); backdrop-filter: blur(10px); border: 1px solid rgba(255, 255, 255, 0.15); border-left: 4px solid var(--color-orange); border-radius: var(--radius-md); padding: var(--space-lg); }

.page-hero { position: relative; background-color: var(--color-navy-dark); color: var(--color-text-light); padding-top: clamp(4rem, 6vw, 6rem); padding-bottom: clamp(3rem, 5vw, 5rem); border-bottom: 1px solid var(--color-border-dark); overflow: hidden; }

/* Stats */
.snapshot-section { position: relative; margin-top: -3rem; z-index: 10; }
.stat-card { background-color: var(--color-navy) !important; border: 1px solid rgba(255, 255, 255, 0.1); border-top: 3px solid var(--color-orange); border-radius: var(--radius-md); padding: var(--space-lg); color: var(--color-text-light); box-shadow: var(--shadow-dark); transition: transform var(--transition-fast); text-align: center; }
.stat-card:hover { transform: translateY(-4px); }

/* Split layout / about-preview */
.about-preview { padding-top: var(--space-3xl); padding-bottom: var(--space-3xl); }
.split-layout__image, .split-layout__image img { width: 100%; height: 480px; object-fit: cover; border-radius: var(--radius-md); box-shadow: var(--shadow-lg); }

/* Why / benefits */
.why-section { padding-top: var(--space-3xl); padding-bottom: var(--space-3xl); background-color: var(--color-white); }
.benefit-card { background-color: var(--color-light-bg) !important; border: 1px solid var(--color-border-light); border-radius: var(--radius-md); padding: var(--space-lg); transition: all var(--transition-normal); height: 100%; }
.benefit-card:hover { background-color: var(--color-white) !important; border-color: var(--color-orange); transform: translateY(-4px); box-shadow: var(--shadow-md); }
.benefit-card__title { font-size: var(--font-size-lg); margin-bottom: 0.75rem; color: var(--color-navy) !important; }
.benefit-card__desc, .benefit-card p { font-size: var(--font-size-sm); color: var(--color-text-muted); line-height: 1.5; }

/* Services */
.services-section { padding-top: var(--space-3xl); padding-bottom: var(--space-3xl); }
.service-card { background-color: var(--color-white) !important; border: 1px solid var(--color-border-light); border-radius: var(--radius-md); overflow: hidden; transition: all var(--transition-normal); height: 100%; }
.service-card:hover { border-color: var(--color-orange); box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.service-card__media { position: relative; overflow: hidden; }
.service-card__media img { width: 100%; height: 220px; object-fit: cover; }
.service-card__title { font-size: var(--font-size-xl) !important; color: var(--color-navy) !important; margin-bottom: 0.75rem; margin-top: 1rem; }
.service-card__desc { font-size: var(--font-size-sm); color: var(--color-text-muted); margin-bottom: var(--space-md); }

.service-detail-item { background-color: var(--color-white); border: 1px solid var(--color-border-light); border-radius: var(--radius-lg); padding: var(--space-xl); margin-bottom: var(--space-xl); }
.service-detail-item__number { font-family: var(--font-heading); font-size: 1.125rem; font-weight: 800; color: var(--color-orange); letter-spacing: 0.05em; margin-bottom: 0.5rem; }
.service-detail-item__title { font-size: var(--font-size-2xl) !important; color: var(--color-navy) !important; margin-bottom: var(--space-sm); }
.service-detail-item__capabilities { margin-top: var(--space-md); display: flex; flex-wrap: wrap; gap: 0.75rem; }
.capability-tag { display: inline-flex; align-items: center; gap: 0.5rem; font-size: var(--font-size-xs); font-weight: 600; color: var(--color-text-dark); background-color: var(--color-light-bg); padding: 0.5rem 0.875rem; border-radius: var(--radius-sm); border-left: 3px solid var(--color-navy); }
.service-detail-item__media img { width: 100%; height: 380px; object-fit: cover; border-radius: var(--radius-md); }

/* Projects */
.projects-section { padding-top: var(--space-3xl); padding-bottom: var(--space-3xl); background-color: var(--color-navy-dark); color: var(--color-text-light); }
.project-card { background-color: var(--color-navy) !important; border: 1px solid var(--color-border-dark); border-radius: var(--radius-md); overflow: hidden; transition: all var(--transition-normal); height: 100%; }
.project-card:hover { border-color: var(--color-orange); transform: translateY(-4px); box-shadow: var(--shadow-dark); }
.project-card__image { height: 240px; width: 100%; object-fit: cover; }
.project-card__tag { display: inline-block; font-size: 0.75rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; color: var(--color-orange-bright); margin-bottom: 0.5rem; }
.project-card__title { font-size: var(--font-size-xl) !important; color: var(--color-white) !important; margin-bottom: 0.75rem; margin-top: 0.5rem; }
.project-card__desc { font-size: var(--font-size-sm); color: var(--color-text-light-muted); line-height: 1.5; margin-bottom: 1rem; }
.project-card__disclaimer { font-size: var(--font-size-xs); color: #64748B; font-style: italic; border-top: 1px solid rgba(255, 255, 255, 0.08); padding-top: 0.75rem; display: block; }

/* Standards */
.standards-section { padding-top: var(--space-3xl); padding-bottom: var(--space-3xl); background-color: var(--color-navy-darkest); color: var(--color-text-light); border-top: 1px solid var(--color-border-dark); border-bottom: 1px solid var(--color-border-dark); }
.standard-card { background-color: rgba(15, 35, 66, 0.6) !important; border: 1px solid rgba(255, 255, 255, 0.1); border-radius: var(--radius-md); padding: var(--space-md); text-align: center; transition: all var(--transition-fast); }
.standard-card:hover { background-color: var(--color-navy) !important; border-color: var(--color-orange); transform: translateY(-4px); }
.standard-card__code { font-family: var(--font-heading); font-size: 1.75rem !important; font-weight: 800 !important; color: var(--color-orange-bright) !important; margin-bottom: 0.25rem; }
.standard-card__desc { font-size: 0.75rem; color: var(--color-text-light-muted); line-height: 1.3; }

/* Equipment */
.equipment-section { padding-top: var(--space-3xl); padding-bottom: var(--space-3xl); background-color: var(--color-white); }
.equipment-card { background-color: var(--color-light-bg) !important; border: 1px solid var(--color-border-light); border-radius: var(--radius-md); padding: var(--space-md); display: flex; align-items: center; gap: 1rem; }
.equipment-card__icon { width: 44px; height: 44px; background-color: var(--color-navy); color: var(--color-orange); border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.equipment-card__title { font-size: var(--font-size-sm); font-weight: 700; color: var(--color-navy); }

/* Values */
.values-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 1rem; }
.value-card { background-color: var(--color-white) !important; border: 1px solid var(--color-border-light); border-top: 4px solid var(--color-navy); border-radius: var(--radius-md); padding: var(--space-md); text-align: center; transition: all var(--transition-fast); height: 100%; }
.value-card:hover { border-top-color: var(--color-orange); transform: translateY(-4px); box-shadow: var(--shadow-md); }
.value-card__letter { font-family: var(--font-heading); font-size: 2.25rem !important; font-weight: 800 !important; color: var(--color-orange) !important; line-height: 1; margin-bottom: 0.25rem; }
.value-card__title { font-size: var(--font-size-sm); font-weight: 700; color: var(--color-navy); }

/* Contact */
.contact-section { padding-top: var(--space-3xl); padding-bottom: var(--space-3xl); }
.contact-info-card { background-color: var(--color-navy) !important; color: var(--color-text-light); border-radius: var(--radius-lg); padding: var(--space-xl); border: 1px solid var(--color-border-dark); box-shadow: var(--shadow-dark); height: 100%; }
.contact-info-item { display: flex; gap: 1.25rem; margin-bottom: var(--space-lg); }
.contact-info-item:last-child { margin-bottom: 0; }
.contact-info-icon { width: 48px; height: 48px; background-color: rgba(255, 255, 255, 0.08); border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; color: var(--color-orange-bright); flex-shrink: 0; }
.contact-info-icon svg { width: 24px; height: 24px; fill: currentColor; }
.contact-info-label { font-size: var(--font-size-xs); text-transform: uppercase; letter-spacing: 0.08em; color: var(--color-text-light-muted); margin-bottom: 0.25rem; }
.contact-info-value { font-size: var(--font-size-base); font-weight: 600; color: var(--color-white); line-height: 1.4; }
.contact-form-wrapper { background-color: var(--color-white) !important; border: 1px solid var(--color-border-light); border-radius: var(--radius-lg); padding: var(--space-xl); box-shadow: var(--shadow-md); }

/* Final CTA */
.cta-section { position: relative; padding-top: var(--space-3xl); padding-bottom: var(--space-3xl); background-color: var(--color-navy-darkest); color: var(--color-text-light); text-align: center; overflow: hidden; }
.cta-section::before { content: ''; position: absolute; top: 0; left: 50%; transform: translateX(-50%); width: 100%; height: 2px; background: linear-gradient(90deg, transparent, var(--color-orange), transparent); }
.cta-content { max-width: 760px; margin-left: auto; margin-right: auto; }
.cta-title { font-size: var(--font-size-3xl) !important; color: var(--color-white) !important; margin-bottom: var(--space-md); }
.cta-desc { font-size: var(--font-size-lg); color: var(--color-text-light-muted); margin-bottom: var(--space-xl); }
.cta-actions { display: flex; align-items: center; justify-content: center; gap: 1.25rem; flex-wrap: wrap; }

/* Footer */
.site-footer { background-color: var(--color-navy-darkest) !important; color: var(--color-text-light-muted); border-top: 1px solid var(--color-border-dark); padding-top: var(--space-3xl); padding-bottom: var(--space-xl); }
.footer-brand__desc { font-size: var(--font-size-sm); line-height: 1.6; margin-top: 1rem; margin-bottom: 1.5rem; color: var(--color-text-light-muted); }
.footer-heading { font-family: var(--font-heading); font-size: var(--font-size-sm) !important; font-weight: 700 !important; text-transform: uppercase; letter-spacing: 0.08em; color: var(--color-white) !important; margin-bottom: 1.25rem; }
.footer-links { display: flex; flex-direction: column; gap: 0.75rem; list-style: none; margin: 0; padding: 0; }
.footer-links__link { font-size: var(--font-size-sm); color: var(--color-text-light-muted); text-decoration: none; }
.footer-links__link:hover { color: var(--color-orange-bright); }
.footer-services-grid { display: grid; grid-template-columns: 1fr; gap: 0.5rem; }
.footer-services-grid a { font-size: 0.85rem; color: var(--color-text-light-muted); text-decoration: none; }
.footer-services-grid a:hover { color: var(--color-orange-bright); }
.footer-bottom { border-top: 1px solid var(--color-border-dark); padding-top: var(--space-lg); display: flex; align-items: center; justify-content: space-between; font-size: var(--font-size-xs); flex-wrap: wrap; gap: 1rem; }
.back-to-top { display: inline-flex; align-items: center; gap: 0.5rem; color: var(--color-orange-bright); font-weight: 700; text-decoration: none; }

.reveal { opacity: 1; }

/* Responsive */
@media (max-width: 1024px) {
  .values-grid { grid-template-columns: repeat(4, 1fr); }
}
@media (max-width: 768px) {
  .nav-menu, .header__actions .btn { display: none; }
  .mobile-nav-toggle { display: block; }
  .values-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-bottom { flex-direction: column; text-align: center; }
}
@media (max-width: 480px) {
  .values-grid { grid-template-columns: 1fr; }
}