/* ===========================
   CONSTRUCTION COMPANY WEBSITE
   MAIN STYLES & COMPONENTS
   =========================== */

/* ========== RESET & BASE STYLES ========== */

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

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

body {
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--dark-gray);
  background-color: var(--background-color);
}

/* ========== TYPOGRAPHY ========== */

h1, h2, h3, h4, h5, h6 {
  line-height: var(--line-height-tight);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--space-md);
  color: var(--primary-color);
}

h1 {
  font-size: var(--font-size-5xl);
}

h2 {
  font-size: var(--font-size-4xl);
}

h3 {
  font-size: var(--font-size-3xl);
}

h4 {
  font-size: var(--font-size-2xl);
}

h5 {
  font-size: var(--font-size-xl);
}

h6 {
  font-size: var(--font-size-lg);
}

p {
  margin-bottom: var(--space-md);
  line-height: var(--line-height-relaxed);
}

a {
  color: var(--accent-color);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--secondary-color);
}

/* ========== LAYOUT ========== */

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

.row {
  display: flex;
  flex-wrap: wrap;
  margin-left: calc(var(--space-md) * -1);
  margin-right: calc(var(--space-md) * -1);
}

.col {
  flex: 1;
  min-width: 0;
  padding-left: var(--space-md);
  padding-right: var(--space-md);
}

.section {
  padding: var(--space-3xl) var(--container-padding);
}

.section--alt {
  background-color: var(--light-gray);
}

/* ========== HEADER & NAVIGATION ========== */

header {
  background-color: var(--navbar-bg);
  color: var(--navbar-text);
  padding: var(--space-lg) 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
  border-bottom: 1px solid var(--navbar-border);
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--primary-color);
  text-decoration: none;
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: var(--space-sm);
  flex: 1 1 auto;
  min-width: 0;
  overflow: hidden;
}

.logo-text {
  display: inline-block;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  letter-spacing: -0.5px;
  max-width: 220px;
  min-width: 50px;
  vertical-align: middle;
}

/* Logo image in navbar */
.logo-img {
  height: 48px;
  width: auto;
  display: block;
}

@media (max-width: 576px) {
  .logo-img { height: 36px; }
}

nav {
  display: flex;
  align-items: center;
  gap: var(--space-2xl);
}

nav ul {
  list-style: none;
  display: flex;
  gap: var(--space-2xl);
  align-items: center;
}

nav a {
  color: var(--dark-gray);
  font-weight: var(--font-weight-medium);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--border-radius-md);
  transition: all var(--transition-fast);
}

nav a:hover {
  color: var(--primary-color);
  background-color: var(--navbar-hover-bg);
}

nav a.active {
  color: var(--secondary-color);
  font-weight: var(--font-weight-bold);
}

nav a.nav-cta {
  border: 2px solid var(--primary-color);
  color: var(--primary-color);
}

nav a.nav-cta:hover {
  background-color: var(--primary-color);
  color: var(--white);
  border-color: var(--primary-color);
}

nav a.nav-cta.is-current-page {
  background-color: var(--primary-color);
  color: var(--white);
  border-color: var(--primary-color);
  box-shadow: 0 4px 12px rgba(16, 24, 32, 0.15);
}

nav a.nav-cta.is-current-page:hover {
  background-color: var(--dark-gray);
  color: var(--white);
  border-color: var(--dark-gray);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--primary-color);
  font-size: var(--font-size-2xl);
  cursor: pointer;
  padding: 0;
}

/* ========== BUTTONS ========== */

.btn {
  display: inline-block;
  padding: var(--space-md) var(--space-lg);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  text-align: center;
  border: 2px solid transparent;
  border-radius: var(--border-radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  line-height: 1;
}

.btn-primary {
  background-color: var(--secondary-color);
  color: var(--white);
}

.btn-primary:hover {
  background-color: #d69b20;
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  background-color: transparent;
  color: var(--secondary-color);
  border-color: var(--secondary-color);
}

.btn-secondary:hover {
  background-color: var(--secondary-color);
  color: var(--white);
  transform: translateY(-2px);
}

.btn-white {
  background-color: var(--white);
  color: var(--surface-color);
}

.btn-white:hover {
  background-color: #eef2f7;
  transform: translateY(-2px);
}

.btn-lg {
  padding: var(--space-lg) var(--space-2xl);
  font-size: var(--font-size-lg);
}

.btn-sm {
  padding: var(--space-sm) var(--space-md);
  font-size: var(--font-size-sm);
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

/* ========== CARDS ========== */

.card {
  background-color: var(--white);
  border: 1px solid var(--light-gray);
  border-radius: var(--border-radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
}

.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.card-header {
  margin-bottom: var(--space-lg);
}

.card-body {
  margin-bottom: var(--space-md);
}

.card-footer {
  padding-top: var(--space-lg);
  border-top: 1px solid var(--light-gray);
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-lg);
}

.service-card {
  position: relative;
  min-height: 300px;
  border-radius: 1.25rem;
  overflow: hidden;
  background-size: cover;
  background-position: center;
  box-shadow: 0 10px 24px rgba(44, 62, 80, 0.08);
  transition: transform 0.32s ease, box-shadow 0.32s ease, filter 0.32s ease;
  cursor: pointer;
  isolation: isolate;
}

.service-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(10, 16, 22, 0.22) 0%, rgba(10, 16, 22, 0.68) 100%);
  transition: background 0.32s ease;
  z-index: 0;
}

.service-card--civil {
  background-image: url('../assets/images/building.webp');
}

.service-card--road {
  background-image: url('../assets/images/base.jpg');
}

.service-card--government {
  background-image: url('../assets/images/engonsite.jpg');
}

.service-card--infrastructure {
  background-image: url('../assets/images/concreate.jpg');
}

.service-card--water {
  background-image: url('../assets/images/drill.avif');
}

.service-card:hover {
  transform: translateY(-8px) scale(1.013);
  box-shadow: 0 26px 48px rgba(18, 27, 35, 0.18);
}

.service-card:hover::before {
  background: linear-gradient(180deg, rgba(10, 16, 22, 0.12) 0%, rgba(10, 16, 22, 0.78) 100%);
}

.service-card:hover .service-card__content {
  transform: translateY(-3px);
}

.service-card:hover .service-card__content h3,
.service-card:hover .service-card__content p {
  text-shadow: 0 4px 16px rgba(0, 0, 0, 0.38);
}

.service-card .service-card__content {
  position: absolute;
  inset: 0;
  z-index: 1;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--space-xl);
  transition: transform 0.32s ease;
}

.service-card__content h3 {
  color: var(--white);
  margin: 0 0 var(--space-sm) 0;
  font-size: clamp(1.3rem, 2vw, 1.7rem);
  line-height: 1.2;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.service-card__content p {
  color: rgba(255, 255, 255, 0.9);
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.6;
  max-width: 95%;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.service-card.bubble-drop {
  animation: service-bubble-drop 0.42s ease-out;
}

@keyframes service-bubble-drop {
  0% {
    transform: translateY(-8px) scale(1.013);
  }
  40% {
    transform: translateY(6px) scale(0.995);
  }
  65% {
    transform: translateY(-3px) scale(1.006);
  }
  100% {
    transform: translateY(0) scale(1);
  }
}

@media (prefers-reduced-motion: reduce) {
  .service-card,
  .service-card::before,
  .service-card__content,
  .service-card.bubble-drop {
    transition: none;
    animation: none;
  }
}

/* ========== FORMS ========== */

.form-group {
  margin-bottom: var(--space-lg);
}

label {
  display: block;
  margin-bottom: var(--space-sm);
  font-weight: var(--font-weight-medium);
  color: var(--primary-color);
}

input,
textarea,
select {
  width: 100%;
  padding: var(--space-md);
  border: 1px solid var(--medium-gray);
  border-radius: var(--border-radius-md);
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--dark-gray);
  background-color: var(--white);
  transition: all var(--transition-fast);
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

textarea {
  resize: vertical;
  min-height: 120px;
}

/* ========== FOOTER ========== */

footer {
  background-color: var(--surface-color);
  color: var(--white);
  padding: var(--space-3xl) 0 var(--space-xl) 0;
  margin-top: var(--space-4xl);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}

.footer-section h3 {
  color: var(--white);
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-lg);
}

.footer-section ul {
  list-style: none;
}

.footer-section li {
  margin-bottom: var(--space-md);
}

.footer-section a {
  color: var(--light-gray);
  transition: color var(--transition-fast);
}

.footer-section a:hover {
  color: var(--secondary-color);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--space-xl);
  text-align: center;
  font-size: var(--font-size-sm);
  color: var(--medium-gray);
}

/* ========== HERO CAROUSEL ========== */

.hero-slider-section {
  position: relative;
  padding: 0;
  background: var(--primary-color);
  overflow: hidden;
}

.hero-slider {
  position: relative;
  min-height: 620px;
}

.hero-slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.8s ease-in-out, visibility 0.8s ease-in-out, transform 0.8s ease-in-out;
  transform: scale(1.04);
}

.hero-slide.is-active {
  opacity: 1;
  visibility: visible;
  transform: scale(1);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(16, 22, 32, 0.84) 0%, rgba(16, 22, 32, 0.58) 40%, rgba(16, 22, 32, 0.56) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  min-height: 620px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  color: var(--white);
  padding-top: 5rem;
  padding-bottom: 5rem;
}

.hero-content h1,
.hero-content h2 {
  color: var(--white);
  text-shadow: 0 4px 18px rgba(0, 0, 0, 0.35);
  max-width: 620px;
}

.eyebrow {
  display: inline-block;
  margin-bottom: var(--space-md);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: #dfeaf6;
}

.hero-content p {
  color: rgba(255, 255, 255, 0.9);
  max-width: 620px;
  font-size: 1.07rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2rem;
}

.hero-slider-controls {
  position: absolute;
  left: 50%;
  bottom: 2rem;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 1rem;
  background: rgba(16, 23, 31, 0.26);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  padding: 0.55rem 0.85rem;
  backdrop-filter: blur(4px);
}

.slider-arrow {
  width: 2.2rem;
  height: 2.2rem;
  border: none;
  background: rgba(255, 255, 255, 0.12);
  color: var(--white);
  border-radius: 50%;
  cursor: pointer;
  font-size: 1.5rem;
  line-height: 1;
}

.slider-arrow:hover {
  background: rgba(255, 255, 255, 0.2);
}

.slider-dots {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.dot {
  width: 0.7rem;
  height: 0.7rem;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.45);
  cursor: pointer;
}

.dot.is-active {
  background: var(--white);
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.18);
}

/* ========== INTRO & CONTACT LAYOUT ========== */

.intro-layout {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 2rem;
  align-items: center;
}

.intro-copy {
  max-width: 620px;
}

.intro-image-wrap,
.contact-image-wrap {
  overflow: hidden;
  border-radius: 1.25rem;
  box-shadow: 0 16px 32px rgba(20, 30, 40, 0.12);
}

.intro-image,
.contact-image {
  display: block;
  width: 100%;
  height: 360px;
  object-fit: cover;
}

/* ========== PAGE HERO & SECTION CTA ========== */

.page-hero h1,
.section-cta h2,
.section-cta h1,
.hero-content h1,
.hero-content h2 {
  color: #f8fbff;
  text-shadow: 0 2px 14px rgba(0, 0, 0, 0.38);
}

.section-cta p {
  color: rgba(255, 255, 255, 0.92);
}

/* ========== CONTACT OVERVIEW ========== */

.contact-overview {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 2rem;
  align-items: center;
  margin-bottom: 2.5rem;
}

/* Page hero banners */
.page-hero {
  position: relative;
  background-size: cover;
  background-position: center;
  padding: 4rem 1rem;
  text-align: center;
  color: var(--white);
}

.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(16, 22, 32, 0.42) 0%, rgba(16, 22, 32, 0.66) 100%);
  z-index: 0;
}

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

.section-cta {
  background: linear-gradient(135deg, var(--secondary-color) 0%, #c38615 100%);
  color: var(--white);
  text-align: center;
}

/* Specific hero images for pages (use existing assets) */
.page-hero--about { background-image: url('../assets/images/engmeet.webp'); }
.page-hero--contact { background-image: url('../assets/images/droneshot.jpg'); }

/* ========== CERTIFICATES / ACHIEVEMENTS ========== */
.certificates-section { padding-top: 3rem; padding-bottom: 3rem; }
.cert-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  align-items: center;
}
.cert-grid--page { max-width: 980px; margin: 0 auto; }
.cert-item { text-align: center; }
.cert-img {
  width: 100%;
  height: 260px;
  object-fit: contain;
  border-radius: 12px;
  box-shadow: var(--shadow-md);
  opacity: 0;
  transform: translateY(14px);
  transition: transform 600ms cubic-bezier(.2,.9,.3,1), opacity 480ms ease;
}
.cert-img.is-visible { opacity: 1; transform: translateY(0); }
.cert-left { transform: translateX(-40px); }
.cert-center { transform: translateY(14px); }
.cert-right { transform: translateX(40px); }
.cert-left.is-visible, .cert-right.is-visible { transform: translateX(0); }

@media (max-width: 900px) {
  .cert-grid { grid-template-columns: 1fr; }
  .cert-img { height: 320px; }
}

/* Service grid layout tweak: 3 on top, 2 beneath (large screens)
   Place 4th in column 1 and 5th in column 3 to visually center the pair */
@media (min-width: 992px) {
  .service-grid { grid-template-columns: repeat(3, 1fr); }
  .service-card { min-height: 320px; }
  .service-card:nth-child(4) { grid-column: 1; }
  .service-card:nth-child(5) { grid-column: 3; }
}

.contact-copy {
  max-width: 620px;
}

/* ========== UTILITY CLASSES ========== */

.text-center {
  text-align: center;
}

.text-left {
  text-align: left;
}

.text-right {
  text-align: right;
}

.mt-1 { margin-top: var(--space-md); }
.mt-2 { margin-top: var(--space-lg); }
.mt-3 { margin-top: var(--space-xl); }
.mt-4 { margin-top: var(--space-2xl); }

.mb-1 { margin-bottom: var(--space-md); }
.mb-2 { margin-bottom: var(--space-lg); }
.mb-3 { margin-bottom: var(--space-xl); }
.mb-4 { margin-bottom: var(--space-2xl); }

.pt-1 { padding-top: var(--space-md); }
.pt-2 { padding-top: var(--space-lg); }
.pt-3 { padding-top: var(--space-xl); }

.pb-1 { padding-bottom: var(--space-md); }
.pb-2 { padding-bottom: var(--space-lg); }
.pb-3 { padding-bottom: var(--space-xl); }

.flex {
  display: flex;
}

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.gap-1 { gap: var(--space-md); }
.gap-2 { gap: var(--space-lg); }
.gap-3 { gap: var(--space-xl); }

.hidden {
  display: none !important;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

@media (max-width: 768px) {
  .hero-slider {
    min-height: 540px;
  }

  .hero-content {
    min-height: 540px;
    padding-top: 4rem;
    padding-bottom: 4rem;
  }

  .intro-layout,
  .contact-overview {
    grid-template-columns: 1fr;
  }

  .hero-actions {
    width: 100%;
  }

  .hero-actions .btn {
    flex: 1 1 100%;
  }
}

@media (max-width: 576px) {
  .hero-slider {
    min-height: 500px;
  }

  .hero-content {
    min-height: 500px;
    padding-top: 3.5rem;
    padding-bottom: 5.25rem;
  }

  .hero-content h1,
  .hero-content h2 {
    font-size: 2.2rem;
  }

  .hero-content p {
    font-size: 1rem;
  }

  .hero-slider-controls {
    bottom: 1.1rem;
    gap: 0.6rem;
    padding: 0.45rem 0.7rem;
  }

  .slider-arrow {
    width: 2rem;
    height: 2rem;
    font-size: 1.2rem;
  }

  .intro-image,
  .contact-image {
    height: 280px;
  }
}

/* ========== WHATSAPP FLOATING BUTTON ========== */

.whatsapp-float {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  width: 3.5rem;
  height: 3.5rem;
  background-color: #25d366;
  color: #ffffff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  box-shadow: 0 4px 12px rgba(37, 211, 102, 0.35);
  z-index: 9999;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.whatsapp-float:hover {
  background-color: #1ebe57;
  transform: scale(1.08) translateY(-2px);
  box-shadow: 0 8px 20px rgba(37, 211, 102, 0.45);
}

.whatsapp-float:active {
  transform: scale(0.96);
}

/* Pulse animation ring */
.whatsapp-float::before {
  content: "";
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 2px solid rgba(37, 211, 102, 0.3);
  animation: whatsapp-pulse 2s ease-out infinite;
  pointer-events: none;
}

@keyframes whatsapp-pulse {
  0% {
    transform: scale(1);
    opacity: 0.6;
  }
  100% {
    transform: scale(1.5);
    opacity: 0;
  }
}

/* Mobile adjustment */
@media (max-width: 576px) {
  .whatsapp-float {
    width: 3rem;
    height: 3rem;
    font-size: 1.5rem;
    bottom: 1rem;
    right: 1rem;
  }
}


/* ========== MOBILE LOGO TEXT BULLETPROOF FIX ========== */

.logo-text {
  display: inline-block !important;
  visibility: visible !important;
  opacity: 1 !important;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 220px;
  min-width: 50px;
  vertical-align: middle;
}

@media (max-width: 576px) {
  .logo-text {
    display: inline-block !important;
    visibility: visible !important;
    opacity: 1 !important;
    max-width: 160px;
    font-size: 0.95rem;
  }

  .logo-img {
    height: 34px !important;
  }
}

@media (max-width: 400px) {
  .logo-text {
    max-width: 130px;
    font-size: 0.85rem;
  }

  .logo-img {
    height: 30px !important;
  }
}

@media (max-width: 340px) {
  .logo-text {
    max-width: 110px;
    font-size: 0.8rem;
  }
}


/* ========== NUCLEAR LOGO FIX ========== */
/* This MUST be the LAST rule in the file to win all specificity battles */

header .header-content a.logo span.logo-text {
  display: inline-block !important;
  visibility: visible !important;
  opacity: 1 !important;
  white-space: nowrap !important;
  overflow: hidden !important;
  text-overflow: ellipsis !important;
  color: var(--primary-color) !important;
  font-size: inherit !important;
}

@media (max-width: 576px) {
  header .header-content a.logo span.logo-text {
    display: inline-block !important;
    visibility: visible !important;
    opacity: 1 !important;
    max-width: 160px !important;
    font-size: 0.95rem !important;
    color: var(--primary-color) !important;
  }
}

@media (max-width: 400px) {
  header .header-content a.logo span.logo-text {
    max-width: 130px !important;
    font-size: 0.85rem !important;
  }
}

@media (max-width: 340px) {
  header .header-content a.logo span.logo-text {
    max-width: 110px !important;
    font-size: 0.8rem !important;
  }
}