/* ============================================
   LOGIFY - Tech-Forward Minimalism Design System
   ============================================ */

:root {
  /* Colors */
  --primary: #1e3a8a;
  --primary-light: #3b82f6;
  --accent: #06b6d4;
  --accent-light: #0ea5e9;
  --dark: #0f172a;
  --dark-light: #1e293b;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-900: #111827;
  --white: #ffffff;

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;

  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

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

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

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background-color: var(--white);
  color: var(--gray-900);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

h1, h2, h3, h4, h5, h6 {
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
}

h1 {
  font-size: clamp(2rem, 5vw, 3.75rem);
  margin-bottom: var(--spacing-lg);
}

h2 {
  font-size: clamp(1.875rem, 4vw, 2.25rem);
  margin-bottom: var(--spacing-lg);
}

h3 {
  font-size: clamp(1.5rem, 3vw, 1.875rem);
  margin-bottom: var(--spacing-md);
}

p {
  margin-bottom: var(--spacing-md);
  color: var(--gray-700);
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.3s ease;
}

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

/* ============================================
   CONTAINER & LAYOUT
   ============================================ */

.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

@media (min-width: 640px) {
  .container {
    padding: 0 var(--spacing-lg);
  }
}

@media (min-width: 1024px) {
  .container {
    padding: 0 var(--spacing-xl);
  }
}

.section {
  padding: var(--spacing-3xl) 0;
}

@media (min-width: 768px) {
  .section {
    padding: var(--spacing-3xl) 0;
  }
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  border: none;
  border-radius: var(--radius-lg);
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
  white-space: nowrap;
}

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

.btn-primary:hover {
  background-color: #1e40af;
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

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

.btn-secondary:hover {
  background-color: #0891b2;
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

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

.btn-outline:hover {
  background-color: var(--gray-50);
  border-color: var(--accent);
  color: var(--accent);
}

.btn-sm {
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: 0.875rem;
}

.btn-lg {
  padding: var(--spacing-lg) var(--spacing-2xl);
  font-size: 1.125rem;
}

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

.card {
  background-color: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  transition: all 0.3s ease;
  box-shadow: var(--shadow-sm);
}

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

.card-icon {
  width: 3rem;
  height: 3rem;
  background: linear-gradient(135deg, rgba(30, 58, 138, 0.1) 0%, rgba(6, 182, 212, 0.1) 100%);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-md);
  transition: transform 0.3s ease;
}

.card:hover .card-icon {
  transform: scale(1.1);
}

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

header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background-color: var(--white);
  border-bottom: 1px solid var(--gray-200);
  z-index: 1000;
  box-shadow: var(--shadow-sm);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 5rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  font-weight: 700;
  color: var(--primary);
  font-size: 1.5rem;
  font-family: 'Poppins', sans-serif;
}

.logo img {
  height: 4rem;
  width: auto;
}

nav {
  display: none;
  gap: var(--spacing-xl);
  align-items: center;
}

@media (min-width: 768px) {
  nav {
    display: flex;
  }
}

nav a {
  color: var(--gray-700);
  font-weight: 500;
  transition: color 0.3s ease;
}

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

.nav-toggle {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-md);
}

@media (min-width: 768px) {
  .nav-toggle {
    display: none;
  }
}

.nav-toggle span {
  width: 1.5rem;
  height: 0.25rem;
  background-color: var(--gray-700);
  border-radius: 0.125rem;
  transition: all 0.3s ease;
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(0.5rem, 0.5rem);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(0.5rem, -0.5rem);
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
  padding: var(--spacing-3xl) 0;
  background: linear-gradient(135deg, rgba(30, 58, 138, 0.05) 0%, rgba(6, 182, 212, 0.05) 100%);

  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0 !important;
  width: 100%;
  height: 100%;
  background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 600"><defs><pattern id="grid" width="40" height="40" patternUnits="userSpaceOnUse"><path d="M 40 0 L 0 0 0 40" fill="none" stroke="rgba(6,182,212,0.1)" stroke-width="1"/></pattern></defs><rect width="1200" height="600" fill="url(%23grid)" /></svg>');
  pointer-events: none;
}

.hero-content,
.hero-dce-content {
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: rgba(6, 182, 212, 0.1);
  border: 1px solid var(--accent);
  border-radius: 9999px;
  color: var(--accent);
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: var(--spacing-lg);
}

.hero h1 {
  font-size: clamp(2.25rem, 6vw, 3.75rem);
  margin-bottom: var(--spacing-lg);
  color: var(--gray-900);
}

.hero h1 .gradient {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.125rem;
  color: var(--gray-700);
  margin-bottom: var(--spacing-xl);
  line-height: 1.8;
}

.hero-buttons {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-3xl);
}

@media (min-width: 640px) {
  .hero-buttons {
    flex-direction: row;
  }
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--spacing-xl);
  padding-top: var(--spacing-2xl);
  border-top: 1px solid var(--gray-200);
}

.stat {
  text-align: center;
}

.stat-number {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary);
  font-family: 'Poppins', sans-serif;
  margin-bottom: var(--spacing-sm);
}

.stat-label {
  font-size: 0.875rem;
  color: var(--gray-600);
}

/* ============================================
   SERVICES SECTION
   ============================================ */

.services {
  background-color: var(--gray-50);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-3xl);
}

.service-card {
  background-color: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  transition: all 0.3s ease;
}

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

.service-icon {
  width: 3rem;
  height: 3rem;
  background: linear-gradient(135deg, rgba(30, 58, 138, 0.1) 0%, rgba(6, 182, 212, 0.1) 100%);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-md);
  transition: transform 0.3s ease;
  color: var(--primary);
  font-size: 1.5rem;
}

.service-card:hover .service-icon {
  transform: scale(1.1);
}

.service-card h3 {
  margin-bottom: var(--spacing-md);
  color: var(--gray-900);
}

.service-card p {
  color: var(--gray-700);
  font-size: 0.95rem;
}

/* ============================================
   ABOUT SECTION
   ============================================ */

.about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-3xl);
  align-items: center;
  margin-bottom: var(--spacing-3xl);
}

@media (min-width: 768px) {
  .about-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.about-image {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.about-image img {
  width: 100%;
  height: auto;
  display: block;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-2xl);
}

.feature-item {
  padding: var(--spacing-lg);
  background: linear-gradient(135deg, rgba(30, 58, 138, 0.05) 0%, rgba(6, 182, 212, 0.05) 100%);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  transition: all 0.3s ease;
}

.feature-item:hover {
  border-color: var(--accent);
  background: linear-gradient(135deg, rgba(30, 58, 138, 0.1) 0%, rgba(6, 182, 212, 0.1) 100%);
}

.feature-item h4 {
  font-size: 1.125rem;
  margin-bottom: var(--spacing-sm);
  color: var(--gray-900);
}

.feature-item p {
  font-size: 0.95rem;
  color: var(--gray-700);
}

/* ============================================
   USE CASES SECTION
   ============================================ */

.usecases-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-3xl);
}

.usecase-card {
  background-color: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  transition: all 0.3s ease;
}

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

.usecase-card h3 {
  margin-bottom: var(--spacing-md);
  color: var(--gray-900);
}

.usecase-benefits {
  list-style: none;
  margin-top: var(--spacing-md);
}

.usecase-benefits li {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
  font-size: 0.95rem;
  color: var(--gray-700);
}

.usecase-benefits li::before {
  content: '✓';
  color: var(--accent);
  font-weight: bold;
  flex-shrink: 0;
}

.cta-section {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  color: var(--white);
  padding: var(--spacing-3xl) var(--spacing-xl);
  border-radius: var(--radius-xl);
  text-align: center;
}

.cta-section h3 {
  color: var(--white);
  margin-bottom: var(--spacing-md);
}

.cta-section p {
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--spacing-xl);
}

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

.cta-section .btn:hover {
  background-color: var(--gray-100);
}

/* ============================================
   CONTACT SECTION
   ============================================ */

.contact-info {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-3xl);
}

.contact-card {
  background-color: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  text-align: center;
  transition: all 0.3s ease;
}

.contact-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-lg);
}

.contact-icon {
  width: 3rem;
  height: 3rem;
  background: linear-gradient(135deg, rgba(30, 58, 138, 0.1) 0%, rgba(6, 182, 212, 0.1) 100%);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-md);
  color: var(--primary);
  font-size: 1.5rem;
}

.contact-form {
  background-color: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: var(--spacing-2xl);
  max-width: 600px;
  margin: 0 auto;
}

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

.form-group label {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-weight: 600;
  color: var(--gray-900);
  font-size: 0.95rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: var(--spacing-md);
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: 1rem;
  transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 150px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
}

@media (min-width: 640px) {
  .form-row {
    grid-template-columns: 1fr 1fr;
  }
}

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

footer {
  background-color: var(--dark);
  color: var(--gray-200);
  padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

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

.footer-section h4 {
  color: var(--white);
  margin-bottom: var(--spacing-md);
  font-size: 1rem;
}

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

.footer-section ul li {
  margin-bottom: var(--spacing-sm);
}

.footer-section a {
  color: var(--gray-400);
  font-size: 0.95rem;
  transition: color 0.3s ease;
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--spacing-xl);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  font-size: 0.875rem;
  color: var(--gray-400);
}

/* ============================================
   UTILITIES
   ============================================ */

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

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

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }
.mt-2xl { margin-top: var(--spacing-2xl); }
.mt-3xl { margin-top: var(--spacing-3xl); }

.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }
.mb-2xl { margin-bottom: var(--spacing-2xl); }
.mb-3xl { margin-bottom: var(--spacing-3xl); }

.hidden {
  display: none !important;
}

@media (min-width: 768px) {
  .hidden-mobile {
    display: none !important;
  }

  .visible-mobile {
    display: none !important;
  }
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 767px) {
  .container {
    padding: 0 var(--spacing-md);
  }

  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.5rem;
  }

  .section {
    padding: var(--spacing-2xl) 0;
  }

  .hero {
    padding: var(--spacing-2xl) 0;
  }
}

/* Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn 0.6s ease-out;
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.slide-in-left {
  animation: slideInLeft 0.6s ease-out;
}

/* ============================================
   HERO SLIDER STYLES
   ============================================ */

.hero-slider-section {
  position: relative;
  margin-top: 5rem;
}

.slider-wrapper {
  position: relative;
  width: 100%;
  overflow: hidden;
}

.slider-slide {
  display: none;
  animation: fadeIn 0.8s ease-in-out;
}

.slider-slide.active {
  display: block;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

/* DCE Hero Specific Styles */
.hero-dce {
  background: linear-gradient(135deg, rgba(30, 58, 138, 0.05) 0%, rgba(6, 182, 212, 0.05) 100%);
}

.hero-dce-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-3xl);
  align-items: center;
  padding: 0;
}

@media (min-width: 1024px) {
  .hero-dce-content {
    grid-template-columns: 1fr 1fr;
  }
}

.hero-dce-text {
  max-width: 600px;
}

.hero-dce-text h1 {
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  margin-bottom: var(--spacing-lg);
  color: var(--gray-900);
}

.hero-dce-text p {
  font-size: 1.125rem;
  color: var(--gray-700);
  margin-bottom: var(--spacing-xl);
  line-height: 1.8;
}

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

.dce-main-img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  border: 2px solid var(--white);
}

.dce-info {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
  padding-top: var(--spacing-xl);
  border-top: 1px solid var(--gray-200);
}

.dce-info-item {
  font-size: 0.95rem;
  color: var(--gray-700);
}

.dce-info-item strong {
  color: var(--primary);
  display: block;
  margin-bottom: var(--spacing-sm);
}

/* Slider Navigation */
.slider-nav {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: var(--spacing-md);
  z-index: 10;
}

.slider-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.5);
  border: 2px solid var(--white);
  cursor: pointer;
  transition: all 0.3s ease;
}

.slider-dot:hover {
  background-color: rgba(255, 255, 255, 0.8);
}

.slider-dot.active {
  background-color: var(--white);
  width: 30px;
  border-radius: 10px;
}