/*
Theme Name: Delta Convergence
Theme URI: https://deltaconvergence.com
Author: Delta Convergence
Author URI: https://deltaconvergence.com
Description: Corporate single-page theme for Delta Convergence – Sage X3 Integrator & Consultant in Africa. Professional ERP / consulting website with smooth anchor navigation.
Version: 1.0.0
License: GNU General Public License v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: delta-convergence
Tags: one-page, corporate, custom-logo, custom-menu, translation-ready
*/

/* ==========================================================================
   CSS Variables
   ========================================================================== */

:root {
  --dc-navy: #1B2A4A;
  --dc-navy-light: #263B66;
  --dc-navy-dark: #111D33;
  --dc-orange: #E87A1E;
  --dc-orange-light: #F59E4B;
  --dc-orange-dark: #C76515;
  --dc-white: #FFFFFF;
  --dc-offwhite: #F7F8FA;
  --dc-gray: #6B7A90;
  --dc-gray-light: #E2E6EC;
  --dc-text: #1E293B;
  --dc-text-light: #64748B;
  --dc-radius: 8px;
  --dc-shadow: 0 4px 24px rgba(27, 42, 74, 0.08);
  --dc-shadow-lg: 0 12px 40px rgba(27, 42, 74, 0.12);
  --dc-transition: all 0.3s ease;
}

/* ==========================================================================
   Reset & Base
   ========================================================================== */

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--dc-text);
  background: var(--dc-white);
  line-height: 1.6;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  text-decoration: none;
  color: inherit;
  transition: var(--dc-transition);
}

ul, ol {
  list-style: none;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Playfair Display', Georgia, serif;
  line-height: 1.2;
  font-weight: 700;
  color: var(--dc-text);
}

/* ==========================================================================
   Typography
   ========================================================================== */

h1 { font-size: 3.5rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

p {
  color: var(--dc-text-light);
  line-height: 1.75;
}

/* ==========================================================================
   Layout
   ========================================================================== */

.dc-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.dc-section {
  padding: 100px 0;
}

.dc-section-header {
  text-align: center;
  margin-bottom: 60px;
}

.dc-section-header .dc-label {
  display: inline-block;
  color: var(--dc-orange);
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 3px;
  font-family: 'Inter', sans-serif;
  margin-bottom: 12px;
}

.dc-section-header h2 {
  margin-bottom: 16px;
}

.dc-section-header p {
  max-width: 640px;
  margin: 0 auto;
  font-size: 1.125rem;
}

.dc-section--alt {
  background: var(--dc-offwhite);
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.dc-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: var(--dc-radius);
  font-family: 'Inter', sans-serif;
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: var(--dc-transition);
  text-decoration: none;
}

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

.dc-btn--primary:hover {
  background: var(--dc-orange-dark);
  box-shadow: 0 8px 24px rgba(232, 122, 30, 0.3);
  transform: translateY(-1px);
}

.dc-btn--outline {
  background: transparent;
  color: var(--dc-white);
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.dc-btn--outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.5);
}

/* ==========================================================================
   Header
   ========================================================================== */

.dc-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  transition: var(--dc-transition);
  padding: 0 20px;
}

.dc-header.scrolled {
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(12px);
  box-shadow: var(--dc-shadow);
  border-bottom: 1px solid var(--dc-gray-light);
}

.dc-header__inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.dc-header__logo img {
  height: 44px;
  width: auto;
}

.dc-header__nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.dc-header__nav a {
  font-family: 'Inter', sans-serif;
  font-size: 0.875rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.85);
}

.dc-header__nav a:hover {
  color: var(--dc-orange);
}

.dc-header.scrolled .dc-header__nav a {
  color: var(--dc-text);
}

.dc-header.scrolled .dc-header__nav a:hover {
  color: var(--dc-orange);
}

.dc-header__cta {
  background: var(--dc-orange) !important;
  color: var(--dc-white) !important;
  padding: 10px 24px !important;
  border-radius: var(--dc-radius) !important;
  font-weight: 600 !important;
}

.dc-header__cta:hover {
  background: var(--dc-orange-dark) !important;
}

/* Mobile Toggle */
.dc-header__toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.dc-header__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--dc-white);
  margin: 6px 0;
  transition: var(--dc-transition);
}

.dc-header.scrolled .dc-header__toggle span {
  background: var(--dc-text);
}

/* Mobile Nav */
.dc-mobile-nav {
  display: none;
  position: fixed;
  top: 80px;
  left: 0;
  right: 0;
  background: var(--dc-white);
  border-top: 1px solid var(--dc-gray-light);
  padding: 20px;
  box-shadow: var(--dc-shadow-lg);
  z-index: 999;
}

.dc-mobile-nav.active {
  display: block;
}

.dc-mobile-nav a {
  display: block;
  padding: 14px 16px;
  font-family: 'Inter', sans-serif;
  font-weight: 500;
  color: var(--dc-text);
  border-radius: var(--dc-radius);
}

.dc-mobile-nav a:hover {
  background: var(--dc-offwhite);
  color: var(--dc-orange);
}

/* ==========================================================================
   Hero
   ========================================================================== */

.dc-hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--dc-navy);
}

.dc-hero__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.7;
}

.dc-hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg,
    rgba(27, 42, 74, 0.75) 0%,
    rgba(27, 42, 74, 0.65) 50%,
    rgba(27, 42, 74, 0.85) 100%);
}

.dc-hero__content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 0 20px;
  max-width: 800px;
}

.dc-hero__badge {
  display: inline-block;
  background: rgba(232, 122, 30, 0.15);
  border: 1px solid rgba(232, 122, 30, 0.3);
  border-radius: 50px;
  padding: 8px 20px;
  margin-bottom: 24px;
  font-family: 'Inter', sans-serif;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--dc-orange-light);
  letter-spacing: 1px;
}

.dc-hero h1 {
  color: var(--dc-white);
  margin-bottom: 16px;
  font-size: 3.5rem;
}

.dc-hero__tagline {
  font-size: 1.375rem;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 12px;
  font-family: 'Inter', sans-serif;
  font-weight: 300;
}

.dc-hero__desc {
  color: rgba(255, 255, 255, 0.55);
  font-size: 1.0625rem;
  max-width: 600px;
  margin: 0 auto 40px;
}

.dc-hero__actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.dc-hero__scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255, 255, 255, 0.4);
  animation: bounce 2s infinite;
  font-size: 1.5rem;
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* ==========================================================================
   About
   ========================================================================== */

.dc-about__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  max-width: 1000px;
  margin: 0 auto;
}

.dc-about__card {
  text-align: center;
  padding: 40px 32px;
  border-radius: var(--dc-radius);
  border: 1px solid var(--dc-gray-light);
  background: var(--dc-white);
  transition: var(--dc-transition);
}

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

.dc-about__icon {
  width: 56px;
  height: 56px;
  background: rgba(232, 122, 30, 0.1);
  border-radius: var(--dc-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
  font-size: 1.5rem;
}

.dc-about__card h3 {
  margin-bottom: 12px;
  font-family: 'Inter', sans-serif;
  font-weight: 700;
}

/* ==========================================================================
   Values
   ========================================================================== */

.dc-values__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  max-width: 1000px;
  margin: 0 auto;
}

.dc-values__card {
  position: relative;
  padding: 40px 32px;
  border-radius: var(--dc-radius);
  border: 1px solid var(--dc-gray-light);
  background: var(--dc-white);
  overflow: hidden;
  transition: var(--dc-transition);
}

.dc-values__card:hover {
  border-color: rgba(232, 122, 30, 0.3);
}

.dc-values__card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--dc-orange);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.5s ease;
}

.dc-values__card:hover::before {
  transform: scaleX(1);
}

.dc-values__icon {
  width: 48px;
  height: 48px;
  background: var(--dc-navy);
  border-radius: var(--dc-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  font-size: 1.25rem;
  color: var(--dc-white);
}

.dc-values__card h3 {
  margin-bottom: 12px;
  font-family: 'Inter', sans-serif;
  font-weight: 700;
}

/* ==========================================================================
   Services
   ========================================================================== */

.dc-services__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  max-width: 1000px;
  margin: 0 auto;
}

.dc-services__card {
  padding: 40px;
  border-radius: var(--dc-radius);
  border: 1px solid var(--dc-gray-light);
  background: var(--dc-white);
  transition: var(--dc-transition);
}

.dc-services__card:hover {
  box-shadow: var(--dc-shadow-lg);
}

.dc-services__card-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
}

.dc-services__card-icon {
  width: 56px;
  height: 56px;
  background: rgba(232, 122, 30, 0.1);
  border-radius: var(--dc-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}

.dc-services__card h3 {
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  font-size: 1.375rem;
}

.dc-services__card p {
  margin-bottom: 24px;
}

.dc-services__features {
  list-style: none;
  padding: 0;
  margin: 0;
}

.dc-services__features li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 8px 0;
  font-family: 'Inter', sans-serif;
  font-size: 0.875rem;
  color: var(--dc-text);
}

.dc-services__features li::before {
  content: '✓';
  color: var(--dc-orange);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 1px;
}

/* ==========================================================================
   Solutions
   ========================================================================== */

.dc-solutions__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  max-width: 1100px;
  margin: 0 auto;
}

.dc-solutions__card {
  padding: 32px 24px;
  border-radius: var(--dc-radius);
  border: 1px solid var(--dc-gray-light);
  background: var(--dc-white);
  transition: var(--dc-transition);
}

.dc-solutions__card:hover {
  border-color: rgba(232, 122, 30, 0.4);
  box-shadow: var(--dc-shadow);
}

.dc-solutions__card-icon {
  width: 48px;
  height: 48px;
  background: var(--dc-navy);
  border-radius: var(--dc-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 1.25rem;
  color: var(--dc-white);
  transition: var(--dc-transition);
}

.dc-solutions__card:hover .dc-solutions__card-icon {
  background: var(--dc-orange);
}

.dc-solutions__card h3 {
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  font-size: 1.125rem;
  margin-bottom: 8px;
}

.dc-solutions__card p {
  font-size: 0.875rem;
}

/* ==========================================================================
   CTA Banner
   ========================================================================== */

.dc-cta {
  position: relative;
  padding: 100px 0;
  background: var(--dc-navy);
  overflow: hidden;
}

.dc-cta__glow1,
.dc-cta__glow2 {
  position: absolute;
  border-radius: 50%;
  background: var(--dc-orange);
  opacity: 0.08;
  filter: blur(80px);
}

.dc-cta__glow1 {
  width: 300px; height: 300px;
  top: -50px; left: -50px;
}

.dc-cta__glow2 {
  width: 400px; height: 400px;
  bottom: -80px; right: -80px;
}

.dc-cta__content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
  padding: 0 20px;
}

.dc-cta h2 {
  color: var(--dc-white);
  margin-bottom: 20px;
}

.dc-cta p {
  color: rgba(255, 255, 255, 0.6);
  font-size: 1.125rem;
  margin-bottom: 36px;
}

/* ==========================================================================
   Contact
   ========================================================================== */

.dc-contact__grid {
  display: grid;
  grid-template-columns: 2fr 3fr;
  gap: 48px;
  max-width: 1000px;
  margin: 0 auto;
}

.dc-contact__info-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 32px;
}

.dc-contact__info-icon {
  width: 48px;
  height: 48px;
  background: rgba(232, 122, 30, 0.1);
  border-radius: var(--dc-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.125rem;
  flex-shrink: 0;
}

.dc-contact__info-item h4 {
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  margin-bottom: 4px;
}

.dc-contact__info-item a:hover {
  color: var(--dc-orange);
}

/* Form */
.dc-form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}

.dc-form input,
.dc-form textarea {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--dc-gray-light);
  border-radius: var(--dc-radius);
  font-family: 'Inter', sans-serif;
  font-size: 0.9375rem;
  background: var(--dc-offwhite);
  color: var(--dc-text);
  transition: var(--dc-transition);
  margin-bottom: 16px;
}

.dc-form input:focus,
.dc-form textarea:focus {
  outline: none;
  border-color: var(--dc-orange);
  box-shadow: 0 0 0 3px rgba(232, 122, 30, 0.1);
}

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

.dc-form button {
  width: auto;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.dc-footer {
  background: var(--dc-navy);
  color: var(--dc-white);
  padding: 80px 0 0;
}

.dc-footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.dc-footer__brand img {
  height: 40px;
  margin-bottom: 16px;
  filter: brightness(0) invert(1);
}

.dc-footer__brand p {
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.875rem;
  max-width: 320px;
}

.dc-footer h4 {
  color: rgba(255, 255, 255, 0.75);
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  font-size: 1rem;
  margin-bottom: 20px;
}

.dc-footer ul li {
  margin-bottom: 8px;
}

.dc-footer ul a {
  color: rgba(255, 255, 255, 0.45);
  font-size: 0.875rem;
  font-family: 'Inter', sans-serif;
}

.dc-footer ul a:hover {
  color: var(--dc-orange);
}

.dc-footer__contact-list li {
  color: rgba(255, 255, 255, 0.45);
  font-size: 0.875rem;
  font-family: 'Inter', sans-serif;
}

.dc-footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 24px 0;
  text-align: center;
}

.dc-footer__bottom p {
  color: rgba(255, 255, 255, 0.3);
  font-size: 0.8125rem;
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 1024px) {
  .dc-solutions__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  h1 { font-size: 2.5rem; }
  h2 { font-size: 2rem; }

  .dc-header__nav { display: none; }
  .dc-header__toggle { display: block; }

  .dc-section { padding: 60px 0; }

  .dc-about__grid,
  .dc-values__grid {
    grid-template-columns: 1fr;
    max-width: 500px;
  }

  .dc-services__grid {
    grid-template-columns: 1fr;
    max-width: 500px;
  }

  .dc-solutions__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .dc-contact__grid {
    grid-template-columns: 1fr;
  }

  .dc-form__row {
    grid-template-columns: 1fr;
  }

  .dc-footer__grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .dc-hero h1 {
    font-size: 2.5rem;
  }

  .dc-hero__tagline {
    font-size: 1.125rem;
  }
}

@media (max-width: 480px) {
  .dc-solutions__grid {
    grid-template-columns: 1fr;
  }

  .dc-hero__actions {
    flex-direction: column;
    align-items: center;
  }

  .dc-hero h1 {
    font-size: 2rem;
  }
}