/* ==========================================================================
   Bandwidth Technologies - Global Stylesheet
   Palette: Primary Orange #FF7A00, Primary Blue #005A9C, Neutral Grays
   Typography: Poppins (headings) & Lato (body)
   ========================================================================== */
:root {
  --color-orange: #ff7a00;
  --color-orange-dark: #e86c00;
  --color-blue: #005a9c;
  --color-blue-dark: #004272;
  --color-blue-light: #0f7cd3;
  --color-gray-100: #f2f2f2;
  --color-gray-300: #d9d9d9;
  --color-gray-700: #555555;
  --color-gray-900: #333333;
  --color-white: #ffffff;
  --color-surface: #ffffff;
  --color-surface-alt: #f7f7fb;

  --font-heading: "Poppins", "Montserrat", "Segoe UI", sans-serif;
  --font-body: "Lato", "Open Sans", "Segoe UI", sans-serif;

  --shadow-soft: 0 10px 30px rgba(0, 90, 156, 0.08);
  --shadow-card: 0 15px 35px rgba(0, 0, 0, 0.08);
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 10px;
}

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

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-gray-900);
  line-height: 1.6;
  background-color: var(--color-surface);
  min-height: 100vh;
  transition: background-color 0.3s ease, color 0.3s ease;
}

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

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

h1,
h2,
h3,
h4 {
  font-family: var(--font-heading);
  margin-top: 0;
  color: var(--color-gray-900);
}

p {
  color: var(--color-gray-700);
}

/* Loader ------------------------------------------------------------------ */
.page-loader {
  position: fixed;
  inset: 0;
  background: radial-gradient(circle at top, rgba(0, 90, 156, 0.25), rgba(0, 0, 0, 0.75));
  display: grid;
  place-items: center;
  z-index: 999;
  transition: opacity 0.4s ease, visibility 0.4s ease;
}

.page-loader::after {
  content: "";
  position: absolute;
  inset: 10%;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 40px;
}

.page-loader.hidden {
  opacity: 0;
  visibility: hidden;
}

.loader-card {
  position: relative;
  padding: 2.5rem 3rem;
  border-radius: 28px;
  background: var(--color-surface);
  box-shadow: 0 25px 70px rgba(0, 0, 0, 0.25);
  text-align: center;
  min-width: 280px;
}

.loader-logo {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-blue);
  margin-bottom: 1rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
}

.loader-logo img {
  width: 64px;
  height: 64px;
  object-fit: contain;
}

.loader-logo span {
  color: var(--color-orange);
}

.loader-bar {
  width: 220px;
  height: 5px;
  border-radius: 999px;
  background: rgba(0, 90, 156, 0.15);
  overflow: hidden;
  margin: 1.5rem auto 1rem;
}

.loader-bar span {
  display: block;
  height: 100%;
  width: 70%;
  background: linear-gradient(90deg, var(--color-orange), var(--color-blue));
  border-radius: 999px;
  animation: loadingBar 1.4s ease-in-out infinite;
}

@keyframes loadingBar {
  0% {
    transform: translateX(-100%);
  }
  50% {
    transform: translateX(20%);
  }
  100% {
    transform: translateX(100%);
  }
}

/* Theme states ------------------------------------------------------------- */
body.dark-mode {
  --color-surface: #0f172a;
  --color-surface-alt: #0b1424;
  --color-gray-100: #111f34;
  --color-gray-300: #202b44;
  --color-gray-700: #c7d2eb;
  --color-gray-900: #f4f6ff;
  --shadow-soft: 0 12px 30px rgba(0, 0, 0, 0.55);
  --shadow-card: 0 25px 55px rgba(0, 0, 0, 0.6);
  background-color: var(--color-surface);
  color: var(--color-gray-900);
}

body.dark-mode header.site-header {
  background: rgba(10, 18, 32, 0.95);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

body.dark-mode .mode-toggle {
  border-color: rgba(255, 255, 255, 0.4);
  color: #f8fafc;
}

body.dark-mode .mode-toggle:hover {
  background: rgba(255, 255, 255, 0.08);
}

body.dark-mode .card-icon {
  background: rgba(255, 255, 255, 0.08);
  color: #f8fafc;
}

body.dark-mode footer {
  background: #010a1c;
  color: #f8fafc;
}

body.dark-mode .social-links a {
  border-color: rgba(255, 255, 255, 0.5);
}

body.dark-mode .social-links a:hover {
  background: rgba(255, 255, 255, 0.25);
}

/* Layout Helpers ---------------------------------------------------------- */
.container {
  width: min(1200px, 90vw);
  margin: 0 auto;
  padding: 4rem 0;
}

.section-title {
  font-size: clamp(2rem, 5vw, 2.8rem);
  text-align: center;
  margin-bottom: 1rem;
}

.section-subtitle {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 3rem;
  color: var(--color-gray-700);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.8rem;
  border-radius: 999px;
  border: none;
  font-weight: 600;
  letter-spacing: 0.5px;
  font-family: var(--font-heading);
  cursor: pointer;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-orange), var(--color-blue));
  color: var(--color-white);
  box-shadow: var(--shadow-soft);
}

.btn-primary:hover {
  transform: translateY(-2px);
}

.btn-outline {
  border: 2px solid var(--color-blue);
  color: var(--color-blue);
  background-color: transparent;
}

.badge {
  display: inline-block;
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  background: rgba(255, 122, 0, 0.15);
  color: var(--color-orange);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.4px;
}

/* Header / Navigation ----------------------------------------------------- */
header.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.95);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0, 90, 156, 0.08);
}

.nav-bar {
  width: min(1200px, 90vw);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.2rem 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--color-blue);
}

.logo img {
  width: 46px;
  height: 46px;
  object-fit: contain;
  filter: drop-shadow(0 6px 12px rgba(0, 0, 0, 0.1));
}

.logo-text span {
  color: var(--color-orange);
}

nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

nav ul {
  display: flex;
  list-style: none;
  gap: 1.5rem;
  margin: 0;
  padding: 0;
}

nav a {
  font-weight: 600;
  color: var(--color-gray-900);
  position: relative;
  padding-bottom: 0.2rem;
}

nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.2rem;
  width: 0;
  height: 2px;
  background: var(--color-orange);
  transition: width 0.2s ease;
}

nav a:hover::after,
nav a.active::after {
  width: 100%;
}

.nav-cta {
  display: inline-flex;
}

.nav-utilities {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.8rem;
  cursor: pointer;
  color: var(--color-blue);
}

.mode-toggle {
  border: 1px solid rgba(0, 90, 156, 0.4);
  background: transparent;
  color: var(--color-blue);
  padding: 0.55rem 1.2rem;
  border-radius: 999px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease;
}

.mode-toggle::before {
  content: "🌙";
  margin-right: 0.35rem;
}

.mode-toggle.is-dark::before {
  content: "☀️";
}

.mode-toggle.is-dark {
  color: var(--color-orange);
  border-color: rgba(255, 122, 0, 0.5);
}

.mode-toggle:hover {
  background: rgba(0, 90, 156, 0.08);
}

/* Hero Section ------------------------------------------------------------ */
.hero {
  color: var(--color-white);
  padding: 6rem 0 5rem;
  text-align: left;
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, rgba(0, 90, 156, 0.88), rgba(15, 124, 211, 0.9));
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url("https://images.unsplash.com/photo-1518770660439-4636190af475?auto=format&fit=crop&w=1600&q=80")
    center/cover no-repeat;
  opacity: 0.35;
  z-index: 0;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: url("https://www.transparenttextures.com/patterns/diagmonds.png");
  opacity: 0.15;
  pointer-events: none;
  z-index: 0;
}

.hero .container {
  position: relative;
  z-index: 1;
  padding: 5rem 0;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.hero h1 {
  font-size: clamp(2.8rem, 8vw, 4.2rem);
  color: var(--color-white);
  margin-bottom: 1rem;
}

.hero p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.1rem;
  max-width: 780px;
  margin: 0 0 2rem;
}

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

/* Cards and Grids --------------------------------------------------------- */
.grid {
  display: grid;
  gap: 1.5rem;
}

.grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.card {
  padding: 2rem;
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(0, 90, 156, 0.08);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-card);
}

.card-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-sm);
  background: rgba(0, 90, 156, 0.08);
  color: var(--color-blue);
  display: grid;
  place-items: center;
  font-size: 1.6rem;
  margin-bottom: 1rem;
}

.card h3 {
  margin-bottom: 0.5rem;
}

/* Project showcase -------------------------------------------------------- */
.project-showcase {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.project-showcase__header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 1rem;
}

.project-showcase__header .section-subtitle {
  margin-bottom: 0;
  text-align: left;
}

.project-featured {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem;
  padding: 2.5rem;
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(0, 90, 156, 0.08);
}

.project-featured img {
  width: 100%;
  height: 320px;
  object-fit: cover;
  border-radius: var(--radius-md);
}

.project-featured h3 {
  margin-top: 0;
}

.project-stats {
  list-style: none;
  padding: 0;
  margin: 1.5rem 0 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1rem;
}

.project-stats li {
  background: rgba(0, 90, 156, 0.08);
  border-radius: var(--radius-sm);
  padding: 1rem;
  font-weight: 600;
  color: var(--color-blue);
}

.project-stats strong {
  display: block;
  font-size: 1.4rem;
  color: var(--color-orange);
}

.project-mini-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
}

.project-mini-card {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  min-height: 220px;
  padding: 1.5rem;
  color: var(--color-white);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: 0.6rem;
  background: #0f172a;
  box-shadow: var(--shadow-soft);
  isolation: isolate;
}

.project-mini-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.15), rgba(0, 0, 0, 0.75)),
    var(--card-image, none) center/cover no-repeat;
  z-index: -1;
  transition: transform 0.4s ease;
}

.project-mini-card:hover::before {
  transform: scale(1.05);
}

.project-mini-card p {
  color: rgba(255, 255, 255, 0.85);
  margin: 0;
}

.project-mini-card--djoliba {
  --card-image: url("https://images.unsplash.com/photo-1520607162513-77705c0f0d4a?auto=format&fit=crop&w=900&q=60");
}

.project-mini-card--senelec {
  --card-image: url("https://images.unsplash.com/photo-1487058792275-0ad4aaf24ca7?auto=format&fit=crop&w=900&q=60");
}

.project-mini-card--lte {
  --card-image: url("https://images.unsplash.com/photo-1506744038136-46273834b3fb?auto=format&fit=crop&w=900&q=60");
}

/* Partner logos ----------------------------------------------------------- */
.partner-strip {
  display: flex;
  align-items: center;
  gap: 2rem;
  overflow: hidden;
  position: relative;
}

.partner-track {
  display: flex;
  gap: 2rem;
  animation: marquee 30s linear infinite;
}

.partner-logo {
  padding: 1rem 1.5rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-gray-300);
  background: var(--color-surface);
  min-width: 150px;
  text-align: center;
  font-weight: 600;
  color: var(--color-blue);
}

@keyframes marquee {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-50%);
  }
}

/* Why Choose Us ----------------------------------------------------------- */
.why-grid {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.why-card {
  border-left: 4px solid var(--color-orange);
}

/* About page specifics ---------------------------------------------------- */
.about-intro-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.image-banner {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.values-grid {
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

/* Services page ----------------------------------------------------------- */
.service-detail {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 1.2fr;
  gap: 2rem;
  align-items: center;
  padding: 2.5rem;
  border-radius: var(--radius-lg);
  background: var(--color-gray-100);
  margin-bottom: 2rem;
}

.service-detail:nth-child(even) {
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
}

.service-detail img {
  border-radius: var(--radius-md);
  height: 260px;
}

/* Projects page ----------------------------------------------------------- */
.project-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
}

.project-card {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.project-card img {
  height: 180px;
}

.project-card .card-body {
  padding: 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.project-card button {
  align-self: flex-start;
}

.project-details {
  margin-top: 3rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.project-detail {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  padding: 1.8rem;
  border: 1px solid rgba(0, 90, 156, 0.1);
  box-shadow: var(--shadow-soft);
}

.project-detail ul {
  padding-left: 1.2rem;
  margin: 1rem 0 0;
  color: var(--color-gray-700);
}

.project-detail h3 {
  margin-top: 0;
}

.floating-cta {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 0.9rem 1.4rem;
  border-radius: 999px;
  background: linear-gradient(120deg, var(--color-orange), var(--color-blue));
  color: var(--color-white);
  text-decoration: none;
  box-shadow: 0 18px 35px rgba(0, 90, 156, 0.3);
  z-index: 20;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.floating-cta strong {
  display: block;
  font-size: 0.95rem;
}

.floating-cta small {
  font-size: 0.75rem;
  opacity: 0.85;
}

.floating-cta span {
  font-size: 1.5rem;
}

.floating-cta:hover {
  transform: translateY(-4px);
  box-shadow: 0 22px 45px rgba(0, 90, 156, 0.35);
}

.floating-cta::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  border: 1px solid rgba(255, 255, 255, 0.4);
  pointer-events: none;
}

.floating-cta-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

/* Partners page ----------------------------------------------------------- */
.partner-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1.2rem;
}

.partner-grid .partner-logo {
  min-width: auto;
}

.partner-categories {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

/* Contact page ------------------------------------------------------------ */
.contact-wrapper {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.contact-card {
  padding: 2rem;
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
}

.contact-form {
  display: grid;
  gap: 1rem;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-gray-300);
  font-family: var(--font-body);
  font-size: 1rem;
}

.contact-form textarea {
  resize: vertical;
  min-height: 140px;
}

.map-frame {
  border: none;
  width: 100%;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
  min-height: 260px;
}

/* Footer ------------------------------------------------------------------ */
footer {
  background: var(--color-gray-900);
  color: var(--color-white);
  padding: 3rem 0 2rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
}

.footer-nav ul {
  padding: 0;
  margin: 0;
  list-style: none;
  display: grid;
  gap: 0.5rem;
}

.social-links {
  display: flex;
  gap: 0.8rem;
}

.social-links a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.3);
  display: grid;
  place-items: center;
  transition: background 0.2s;
}

.social-links a:hover {
  background: rgba(255, 255, 255, 0.2);
}

.footer-bottom {
  margin-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  padding-top: 1.5rem;
  text-align: center;
  font-size: 0.9rem;
}

/* Utility sections -------------------------------------------------------- */
.page-hero {
  --page-hero-image: url("https://images.unsplash.com/photo-1469474968028-56623f02e42e?auto=format&fit=crop&w=1600&q=80");
  position: relative;
  overflow: hidden;
  background: linear-gradient(120deg, rgba(0, 90, 156, 0.95), rgba(255, 122, 0, 0.9));
  color: var(--color-white);
  text-align: center;
  padding: 5rem 0;
}

.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--page-hero-image) center/cover no-repeat;
  opacity: 0.3;
  z-index: 0;
}

.page-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.1), rgba(0, 0, 0, 0.45));
  z-index: 0;
}

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

.page-hero h1 {
  color: var(--color-white);
  margin-bottom: 0.5rem;
}

.breadcrumb {
  color: rgba(255, 255, 255, 0.85);
}

.page-hero--about {
  --page-hero-image: url("https://images.unsplash.com/photo-1529333166437-7750a6dd5a70?auto=format&fit=crop&w=1600&q=80");
}

.page-hero--services {
  --page-hero-image: url("https://images.unsplash.com/photo-1498050108023-c5249f4df085?auto=format&fit=crop&w=1600&q=80");
}

.page-hero--projects {
  --page-hero-image: url("https://images.unsplash.com/photo-1520607162513-77705c0f0d4a?auto=format&fit=crop&w=1600&q=80");
}

.page-hero--partners {
  --page-hero-image: url("https://images.unsplash.com/photo-1521737604893-d14cc237f11d?auto=format&fit=crop&w=1600&q=80");
}

.page-hero--contact {
  --page-hero-image: url("https://images.unsplash.com/photo-1506744038136-46273834b3fb?auto=format&fit=crop&w=1600&q=80");
}

/* Responsive tweaks ------------------------------------------------------- */
@media (max-width: 960px) {
  .service-detail {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }

  nav {
    position: absolute;
    top: 100%;
    right: 0;
    width: min(300px, 80vw);
    background: var(--color-surface);
    border: 1px solid rgba(0, 90, 156, 0.15);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-card);
    padding: 1.5rem;
    transform-origin: top right;
    transform: scale(0.9);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease, transform 0.25s ease;
  }

  nav.open {
    opacity: 1;
    transform: scale(1);
    pointer-events: all;
  }

  nav ul {
    flex-direction: column;
  }

  nav {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.2rem;
  }

  .nav-cta {
    width: 100%;
    justify-content: center;
  }

  .nav-utilities {
    width: 100%;
    flex-direction: column;
    align-items: stretch;
  }

  .nav-utilities .mode-toggle {
    width: 100%;
    text-align: center;
  }

  .hero {
    text-align: left;
  }

  .partner-track {
    animation-duration: 20s;
  }
}

@media (max-width: 520px) {
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .card,
  .service-detail,
  .contact-card {
    padding: 1.5rem;
  }

  .floating-cta {
    right: 1rem;
    left: 1rem;
    bottom: 1rem;
    justify-content: center;
    border-radius: var(--radius-md);
  }
}