/* Premium Modern Design System */
:root {
  --primary-gradient: linear-gradient(135deg, #4ecdc4 0%, #44a08d 50%, #093637 100%);
  --secondary-gradient: linear-gradient(135deg, #96ceb4 0%, #ffd93d 100%);
  --accent-gradient: linear-gradient(135deg, #ff9ff3 0%, #f368e0 100%);
  --primary-color: #4ecdc4;
  --secondary-color: #44a08d;
  --accent-color: #f368e0;
  --success-color: #2ecc71;
  --warning-color: #f39c12;
  --danger-color: #e74c3c;
  --dark-color: #2c3e50;
  --light-color: #f8fafc;
  --border-radius: 2rem;
  --input-radius: 1.2rem;
  --shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --shadow-xl: 0 35px 60px -12px rgba(0, 0, 0, 0.35);
  --font-main: 'Inter', 'Segoe UI', Arial, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Courier New', monospace;
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  font-family: var(--font-main);
  background: #f5f7fb;
  min-height: 100vh;
  color: #1f2937;
  line-height: 1.6;
  position: relative;
  overflow-x: hidden;
}

body::before { display: none; }

/* Modern Navbar */
.navbar { background: #ffffff !important; border-bottom: 1px solid #e5e7eb; box-shadow: none; position: relative; z-index: 1000; }

.navbar::before { display: none; }

.navbar-brand { font-weight: 800; font-size: 1.5rem; color: #111827 !important; letter-spacing: -0.02em; }

.navbar-brand::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--accent-gradient);
  border-radius: 1px;
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.navbar-brand:hover::after {
  transform: scaleX(1);
}

.navbar-nav .nav-link { color: #374151 !important; font-weight: 600; font-size: 1rem; transition: color 0.2s ease; border-radius: 0.5rem; margin: 0 0.25rem; padding: 0.5rem 0.75rem; }

.navbar-nav .nav-link::before { display: none; }
.navbar-nav .nav-link:hover { color: #111827 !important; }

/* Language Switcher */
.form-select-sm {
  background: #ffffff;
  border: 1px solid #d1d5db;
  color: #111827;
  border-radius: 0.5rem;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.35rem 0.875rem;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-select-sm:focus {
  background: #ffffff;
  border-color: #6366f1;
  box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.15);
}

.form-select-sm option {
  background: #ffffff;
  color: #111827;
}

/* Main Container */
.container-fluid { padding: 2rem 1rem; }

/* Card Design */
.card { background: #ffffff; border: 1px solid #e5e7eb; border-radius: 1rem; box-shadow: 0 1px 2px rgba(0,0,0,0.04); overflow: hidden; position: relative; transition: box-shadow 0.2s ease, transform 0.2s ease; }

.card::before { display: none; }
.card:hover { transform: translateY(-2px); box-shadow: 0 10px 15px -3px rgba(0,0,0,0.1); }

.card-header { background: #f9fafb !important; border-bottom: 1px solid #e5e7eb; padding: 2rem 1.5rem !important; text-align: center; color: #111827; }

.card-header::before { display: none; }

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

.card-header h1 {
  font-weight: 800;
  font-size: clamp(1.5rem, 4vw, 2.25rem);
  margin-bottom: 0.25rem;
  letter-spacing: -0.02em;
  word-break: break-word;
  overflow-wrap: anywhere;
}

.card-header p { font-size: 1rem; opacity: 0.8; margin: 0; font-weight: 500; }

.card-body { padding: 2rem 1.5rem !important; }

/* Form Controls */
.form-control { border: 1px solid #d1d5db; border-radius: 0.75rem; padding: 0.875rem 1rem; font-size: 1rem; transition: border-color 0.2s ease, box-shadow 0.2s ease; background: #ffffff; font-family: var(--font-mono); }

.form-control:focus { border-color: #6366f1; box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.15); background: #ffffff; }

.form-label { font-weight: 700; color: #111827; margin-bottom: 0.5rem; font-size: 1rem; }

.form-label::after { display: none; }

.form-text {
  color: #6b7280;
  font-size: 0.95rem;
  margin-top: 0.5rem;
}

/* Buttons */
.btn { border-radius: 0.75rem; font-weight: 700; padding: 0.875rem 1.25rem; font-size: 1rem; border: 1px solid transparent; position: relative; background: #111827; color: white; transition: background-color 0.2s ease, box-shadow 0.2s ease, transform 0.1s ease; }

.btn::before { display: none; }
.btn:hover { transform: translateY(-1px); box-shadow: 0 8px 20px rgba(0,0,0,0.08); }

.btn-lg { padding: 1rem 1.5rem; font-size: 1.05rem; }

.btn-success { background: #16a34a; }
.btn-success:hover { background: #15803d; }

.btn-outline-secondary { border-color: #9ca3af; color: #374151; background: transparent; }
.btn-outline-secondary:hover { background: #e5e7eb; color: #111827; }

.btn-outline-info { border-color: #6366f1; color: #3730a3; background: transparent; }
.btn-outline-info:hover { background: #eef2ff; color: #1f2937; }

/* Textarea */
textarea.form-control { font-family: var(--font-mono); font-size: 0.95rem; line-height: 1.6; resize: vertical; min-height: 350px; background: #ffffff; }

/* Alert */
.alert {
  border: none;
  border-radius: var(--input-radius);
  padding: 1.3rem 1.8rem;
  font-weight: 600;
  font-size: 1.1rem;
  background: linear-gradient(135deg, #fef2f2, #fee2e2);
  color: #dc2626;
  border-left: 5px solid var(--danger-color);
  box-shadow: 0 4px 15px rgba(239, 83, 80, 0.2);
}

/* Features Card */
.card.bg-light { background: #f9fafb !important; border: 1px solid #e5e7eb; border-radius: 0.75rem; box-shadow: none; }

/* Privacy page specific improvements */
.card-header.text-center { color: #111827 !important; background: #f9fafb !important; }
.card-body { color: #374151; }
.card-body h2 { color: #111827; margin-top: 0.5rem; margin-bottom: 0.75rem; }
.card-body p, .card-body li { color: #374151; }

.card.bg-light .card-title {
  color: var(--dark-color);
  font-weight: 700;
  margin-bottom: 1rem;
  font-size: 1.3rem;
}

.card.bg-light ul li {
  padding: 0.6rem 0;
  color: #4b5563;
  font-size: 1.05rem;
  transition: all 0.2s ease;
}

.card.bg-light ul li:hover {
  color: var(--dark-color);
  transform: translateX(5px);
}

.card.bg-light ul li i {
  color: var(--success-color);
  margin-right: 0.75rem;
}

/* Footer */
.footer { background: #ffffff; border-top: 1px solid #e5e7eb; color: #6b7280; padding: 1.25rem 0; margin-top: 2rem; font-size: 0.95rem; }

.footer a { color: #111827; text-decoration: underline; font-weight: 600; }
.footer a:hover { color: #4b5563; text-decoration: none; }

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(50px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

.card {
  animation: fadeInUp 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Responsive Design */
@media (max-width: 992px) {
  .container-fluid { padding: 1.5rem !important; }
  .card-body { padding: 1.75rem 1.25rem !important; }
  .card-header { padding: 1.75rem 1.25rem 1.25rem 1.25rem !important; }
  .card-header h1 { font-size: clamp(1.5rem, 3.2vw, 2.125rem); }
}

@media (max-width: 576px) {
  .container-fluid { padding: 1rem !important; }
  .navbar-brand { font-size: 1.25rem; }
  .navbar-nav .nav-link { padding: 0.5rem 0.5rem; }
  #langForm { margin-left: 0 !important; width: 100%; }
  .navbar .form-select-sm { width: 100%; }
  .card-header { padding: 1.5rem 1rem 1rem 1rem !important; }
  .card-header h1 { font-size: clamp(1.25rem, 6.5vw, 1.75rem); }
  .card-body { padding: 1.25rem 1rem !important; }
  .btn-lg { padding: 0.875rem 1.25rem; font-size: 1rem; }
  textarea.form-control { min-height: 220px; }
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: #f1f5f9;
  border-radius: 5px;
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(135deg, var(--accent-color), var(--primary-color));
}

/* Loading Animation */
.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: #fff;
  animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* Glass Morphism Effect */
.glass {
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

/* Gradient Text */
.gradient-text {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}