@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@300;400;500;600;700;800&display=swap');

/* ================================
   CSS VARIABLES - THE EXECUTIVE SLATE
   ================================ */
:root {
  /* Light Theme (Default) */
  --background: #FFFFFF;
  --surface: #F8FAFC;
  --surface-highlight: #F1F5F9;
  --text-primary: #0F172A;
  --text-secondary: #64748B;
  --border: #E2E8F0;
  --primary: #0F172A;
  --primary-foreground: #FFFFFF;
  --accent: #0EA5E9;
  --glass-bg: rgba(255, 255, 255, 0.5);
  --glass-border: rgba(226, 232, 240, 0.8);
  --shadow: rgba(15, 23, 42, 0.08);
}

[data-theme="dark"] {
  --background: #020617;
  --surface: #0F172A;
  --surface-highlight: #1E293B;
  --text-primary: #F8FAFC;
  --text-secondary: #94A3B8;
  --border: #1E293B;
  --primary: #FFFFFF;
  --primary-foreground: #0F172A;
  --accent: #38BDF8;
  --glass-bg: rgba(15, 23, 42, 0.5);
  --glass-border: rgba(30, 41, 59, 0.8);
  --shadow: rgba(0, 0, 0, 0.3);
}

/* ================================
   RESET & BASE
   ================================ */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Manrope', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-weight: 400;
  letter-spacing: -0.01em;
  line-height: 1.6;
  background: var(--background);
  color: var(--text-primary);
  transition: background-color 0.3s ease, color 0.3s ease;
}

.container {
  width: min(1200px, 100%);
  margin: 0 auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

section {
  padding-top: 6rem;
  padding-bottom: 6rem;
}

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

/* ================================
   TYPOGRAPHY
   ================================ */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
  color: var(--text-primary);
}

h1 {
  font-size: 3.5rem;
  margin-bottom: 1.5rem;
}

h2 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

h3 {
  font-size: 1.75rem;
  margin-bottom: 0.75rem;
}

p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
  font-size: 1.125rem;
}

/* ================================
   GLASSMORPHISM HEADER
   ================================ */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: 0 4px 24px var(--shadow);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  max-width: 90%;
  margin: 0 auto;
}

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-primary);
  text-decoration: none;
  letter-spacing: -0.04em;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 2rem;
  align-items: center;
}

nav a {
  text-decoration: none;
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.95rem;
  transition: color 0.2s ease;
}

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

.theme-toggle {
  background: transparent;
  border: 1px solid var(--border);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  color: var(--text-primary);
  font-size: 1.2rem;
}

.theme-toggle:hover {
  background: var(--surface);
  transform: translateY(-2px);
}

/* ================================
   BUTTONS
   ================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 9999px;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  border: none;
  text-decoration: none;
  font-family: inherit;
  transition: all 0.2s ease;
  gap: 0.5rem;
}

.btn-primary {
  background: var(--primary);
  color: var(--primary-foreground);
  padding: 0.875rem 1.75rem;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px var(--shadow);
}

.btn-secondary {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-primary);
  padding: 0.875rem 1.75rem;
}

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

/* ================================
   HERO SECTION
   ================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 8rem;
  padding-bottom: 8rem;
}
.dark_image {
 
    background: url(https://images.unsplash.com/photo-1750969185331-e03829f72c7d?crop=entropy&cs=srgb&fm=jpg&q=85);
}
.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, var(--surface) 0%, var(--background) 100%);
  z-index: -1;
}

.hero-content {
  max-width: 800px;
}

.hero h1 {
  font-size: 4rem;
  margin-bottom: 1.5rem;
  animation: fadeInUp 0.6s ease-out;
}

.hero p {
  font-size: 1.35rem;
  margin-bottom: 2.5rem;
  animation: fadeInUp 0.6s ease-out 0.2s both;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  animation: fadeInUp 0.6s ease-out 0.4s both;
}

section.hero.head_img {
    padding: 0 100px;
    gap: 80px;
}
.herocontent_left {
    width: 50%;
}
.herocontent_right {
    width: 50%;
}
section.hero.head_img h1 {
    font-size: 3em;
}
section.hero.head_img p {
    font-size: 18px;
    line-height: 1.4em;
}
.herocontent_right {
    width: 50%;
}
.dark_image {
    background: url(https://images.unsplash.com/photo-1750969185331-e03829f72c7d?crop=entropy&cs=srgb&fm=jpg&q=85);
    width: 100%;
    height: 500px;
    border-radius: 20px;
    object-fit: cover;
    background-size: cover;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ================================
   CARDS
   ================================ */
.card {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2rem;
  transition: all 0.3s ease;
}

.card:hover {
  border-color: var(--text-secondary);
  box-shadow: 0 20px 40px -12px var(--shadow);
  transform: translateY(-4px);
}

.card-icon {
  width: 48px;
  height: 48px;
  background: var(--accent);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  font-size: 1.5rem;
  color: white;
}

.card h3 {
  margin-bottom: 1rem;
}

.card p {
  font-size: 1rem;
}

/* ================================
   GRID SYSTEM
   ================================ */
.grid {
  display: grid;
  gap: 2rem;
}

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

.grid-3 {
  grid-template-columns: repeat(1, 1fr);
}

.grid-4 {
  grid-template-columns: repeat(1, 1fr);
}

@media (min-width: 768px) {
  .grid-2 {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .grid-4 {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* ================================
   FORMS
   ================================ */
.form-group {
  margin-bottom: 1.5rem;
}

label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: var(--text-primary);
  font-size: 0.95rem;
}

input, textarea, select {
  background: transparent;
  border: 1px solid var(--border);
  padding: 0.875rem 1rem;
  border-radius: 8px;
  font-family: inherit;
  width: 100%;
  transition: all 0.2s ease;
  color: var(--text-primary);
  font-size: 1rem;
}

input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.1);
}

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

/* ================================
   TIMELINE / PROCESS
   ================================ */
.timeline {
  position: relative;
  padding-left: 3rem;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--border);
}

.timeline-item {
  position: relative;
  margin-bottom: 3rem;
}

.timeline-item::before {
  content: attr(data-step);
  position: absolute;
  left: -3.75rem;
  width: 32px;
  height: 32px;
  background: var(--accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-size: 0.875rem;
}

/* ================================
   FOOTER
   ================================ */
footer {
  background: var(--surface);
  border-top: 1px solid var(--border);
  padding: 4rem 0 2rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(1, 1fr);
  gap: 3rem;
  margin-bottom: 3rem;
}

@media (min-width: 768px) {
  .footer-content {
    grid-template-columns: repeat(4, 1fr);
  }
}

.footer-section h4 {
  font-size: 1rem;
  margin-bottom: 1rem;
}

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

.footer-section ul li {
  margin-bottom: 0.75rem;
}

.footer-section a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.2s ease;
  font-size: 0.95rem;
}

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

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* ================================
   MOBILE NAVIGATION
   ================================ */
.mobile-menu-btn {
  display: none;
  background: transparent;
  border: none;
  font-size: 1.5rem;
  color: var(--text-primary);
  cursor: pointer;
}

@media (max-width: 768px) {
  .mobile-menu-btn {
    display: block;
  }

  .header-content {
    max-width: 100%;
    padding: 1rem;
  }
  
  nav ul {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgb(18 25 42 / 99%);
    backdrop-filter: blur(12px);
    flex-direction: column;
    padding: 2rem;
    border-top: 1px solid var(--glass-border);
    gap: 1rem;
  }

  nav ul li {
    width: 100%;
  }

  nav ul .btn,
  nav ul .theme-toggle {
    width: 100%;
  }
  
  nav ul.active {
    display: flex;
  }

  .container {
    max-width: 100%;
    padding-left: 1rem;
    padding-right: 1rem;
  }
  
  .hero h1 {
    font-size: 2.5rem;
  }
  
  .hero p {
    font-size: 1.125rem;
  }
  
  h1 {
    font-size: 2.5rem;
  }
  
  h2 {
    font-size: 2rem;
  }

  section.hero.head_img {
    flex-direction: column;
    min-height: auto;
    padding: 7rem 1rem 4rem;
    gap: 2rem;
  }

  .herocontent_left,
  .herocontent_right {
    width: 100%;
  }

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

  .dark_image {
    height: 280px;
  }

  .admin-table {
    display: block;
    overflow-x: auto;
    white-space: nowrap;
  }
}

/* ================================
   UTILITY CLASSES
   ================================ */
.text-center {
  text-align: center;
}

.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.mb-3 { margin-bottom: 3rem; }
.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mt-3 { margin-top: 3rem; }

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

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

/* ================================
   ADMIN STYLES
   ================================ */
.admin-container {
  max-width: 1400px;
  margin: 2rem auto;
  padding: 0 2rem;
}

.admin-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 3rem;
  padding-bottom: 1rem;
  border-bottom: 2px solid var(--border);
}

.admin-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem;
  margin-bottom: 2rem;
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
}

.admin-table th,
.admin-table td {
  padding: 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.admin-table th {
  background: var(--surface-highlight);
  font-weight: 600;
  color: var(--text-primary);
}

.admin-table tr:hover {
  background: var(--surface);
}

.btn-small {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

.btn-danger {
  background: #EF4444;
  color: white;
}

.btn-danger:hover {
  background: #DC2626;
}

.login-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-card {
  max-width: 400px;
  width: 100%;
}

/* ================================
   BLOG STYLES
   ================================ */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(1, 1fr);
  gap: 2.5rem;
}

@media (min-width: 768px) {
  .blog-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

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

.blog-card {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.blog-card img {
  width: 100%;
  height: 250px;
  object-fit: cover;
  border-radius: 12px;
  margin-bottom: 1.5rem;
}

.blog-meta {
  display: flex;
  gap: 1rem;
  margin-bottom: 1rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.blog-content {
  max-width: 800px;
  margin: 0 auto;
  line-height: 1.8;
}

.blog-content img {
  margin: 2rem 0;
  border-radius: 12px;
}

/* ================================
   CASE STUDY STYLES
   ================================ */
.case-study-hero {
  background: var(--surface);
  padding: 4rem 0;
  margin-bottom: 4rem;
  border-radius: 16px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(1, 1fr);
  gap: 2rem;
  margin: 3rem 0;
}

@media (min-width: 768px) {
  .stats-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.stat-card {
  text-align: center;
  padding: 2rem;
}

.stat-number {
  font-size: 3rem;
  font-weight: 800;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: 1rem;
  color: var(--text-secondary);
}