/* ===== VARIABLES & RESET ===== */
:root {
  /* Primary colors - clean & professional */
  --primary: #0a2540;      /* Deep navy - trust */
  --primary-light: #1a3a5f;
  --accent: #3b82f6;       /* Bright blue - action */
  --accent-hover: #2563eb;
  
  /* Neutrals */
  --white: #ffffff;
  --off-white: #f8fafc;
  --gray-50: #f1f5f9;
  --gray-100: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1e293b;
  --gray-900: #0f172a;
  
  /* Semantic */
  --text-primary: var(--gray-900);
  --text-secondary: var(--gray-700);
  --text-muted: var(--gray-600);
  --bg-body: var(--white);
  --border-light: var(--gray-100);
  
  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  
  /* Typography */
  --font-sans: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
  --font-size-base: 1rem;
  --line-height-base: 1.6;
  
  /* Borders & shadows */
  --radius: 12px;
  --radius-sm: 6px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.05), 0 1px 2px rgba(0,0,0,0.1);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
  
  /* Transitions */
  --transition: all 0.2s ease;
}

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

html {
  font-size: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  color: var(--text-primary);
  background: var(--bg-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ===== LAYOUT & UTILITY ===== */
.container {
  width: min(100% - 2rem, 1200px);
  margin-inline: auto;
}

.section {
  padding-block: var(--space-2xl);
}

.section-muted {
  background-color: var(--off-white);
}

.section-head {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.section-title {
  font-size: 2.25rem;
  font-weight: 600;
  line-height: 1.2;
  color: var(--primary);
  margin-bottom: var(--space-xs);
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin-inline: auto;
}

.grid {
  display: grid;
  gap: var(--space-lg);
}

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

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

/* Cards */
.card {
  background: var(--white);
  border-radius: var(--radius);
  padding: var(--space-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
  transition: var(--transition);
}

.card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--gray-300);
}

.card-title {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: var(--space-md);
  color: var(--primary);
}

.card-note {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-block: var(--space-md);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-sm);
  font-weight: 500;
  text-decoration: none;
  transition: var(--transition);
  cursor: pointer;
  border: 1px solid transparent;
  font-size: 1rem;
  line-height: 1.4;
  white-space: nowrap;
}

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

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: var(--white);
  color: var(--primary);
  border-color: var(--gray-300);
}

.btn-secondary:hover {
  background: var(--gray-50);
  border-color: var(--gray-600);
}

.btn-light {
  background: var(--white);
  color: var(--primary);
  border: 1px solid var(--gray-100);
}

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

.btn-block {
  display: flex;
  width: 100%;
}

/* Text utilities */
.text-link {
  color: var(--accent);
  text-decoration: none;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

.text-link:hover {
  text-decoration: underline;
}

.muted {
  color: var(--text-muted);
  font-size: 0.875rem;
}

.badge {
  display: inline-block;
  background: var(--gray-100);
  color: var(--gray-700);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  margin-bottom: var(--space-sm);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Lists */
.checklist,
.bullets {
  list-style: none;
  margin: var(--space-md) 0;
}

.checklist li,
.bullets li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: var(--space-sm);
}

.checklist i,
.bullets i {
  color: var(--accent);
  font-size: 1rem;
  margin-top: 0.2rem;
  flex-shrink: 0;
}

.steps {
  list-style: none;
  margin-bottom: var(--space-lg);
}

.steps li {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
  font-weight: 500;
}

.step-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  background: var(--accent);
  color: var(--white);
  border-radius: 50%;
  font-weight: 600;
  font-size: 0.875rem;
}

/* ===== HEADER & NAVIGATION ===== */
.site-header {
  background: var(--white);
  border-bottom: 1px solid var(--border-light);
  padding: var(--space-sm) 0;
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(8px);
  background: rgba(255,255,255,0.95);
}

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

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  text-decoration: none;
  font-weight: 600;
  font-size: 1.25rem;
  color: var(--primary);
}

.brand-logo {
  width: 36px;
  height: 36px;
  object-fit: contain;
  border-radius: var(--radius-sm);
}

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

/* Navigation */
.nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  list-style: none;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  text-decoration: none;
  color: var(--text-secondary);
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  white-space: nowrap;
}

.nav-link i {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.nav-link:hover {
  color: var(--primary);
  background: var(--gray-50);
}

.nav-link.is-active {
  color: var(--accent);
  background: rgba(59,130,246,0.08);
}

.nav-link.is-active i {
  color: var(--accent);
}

.nav-item-lang {
  margin-left: var(--space-sm);
  border-left: 1px solid var(--border-light);
  padding-left: var(--space-sm);
}

.nav-link-lang {
  font-weight: 600;
  background: var(--gray-50);
  min-width: 44px;
  justify-content: center;
}

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-xs);
  flex-direction: column;
  gap: 5px;
  z-index: 200;
}

.nav-toggle-bar {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--primary);
  transition: var(--transition);
  border-radius: 2px;
}

/* ===== HERO SECTION ===== */
.hero {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: var(--white);
  padding: var(--space-2xl) 0;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: var(--space-xl);
  align-items: center;
}

.hero-content {
  max-width: 600px;
}

.eyebrow {
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: rgba(255,255,255,0.8);
  margin-bottom: var(--space-sm);
}

.hero-title {
  font-size: 2.75rem;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--space-md);
  color: var(--white);
}

.hero-subtitle {
  font-size: 1.125rem;
  color: rgba(255,255,255,0.9);
  margin-bottom: var(--space-lg);
}

.hero-actions {
  display: flex;
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
  flex-wrap: wrap;
}

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

.hero-actions .btn-primary:hover {
  background: var(--off-white);
  box-shadow: var(--shadow-lg);
}

.hero-actions .btn-secondary {
  background: rgba(255,255,255,0.15);
  color: var(--white);
  border-color: rgba(255,255,255,0.3);
}

.hero-actions .btn-secondary:hover {
  background: rgba(255,255,255,0.25);
  border-color: var(--white);
}

.trust-row {
  display: flex;
  gap: var(--space-lg);
  flex-wrap: wrap;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: rgba(255,255,255,0.9);
  font-size: 0.9375rem;
}

.trust-item i {
  color: rgba(255,255,255,0.7);
}

/* Hero card */
.hero-card .card {
  background: var(--white);
  color: var(--text-primary);
  padding: var(--space-lg);
}

.hero-card .card-title {
  color: var(--primary);
}

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

.hero-card .btn:hover {
  background: var(--accent-hover);
}

/* ===== FEATURES ===== */
.feature {
  padding: var(--space-lg);
  background: var(--white);
  border-radius: var(--radius);
  border: 1px solid var(--border-light);
  transition: var(--transition);
}

.feature:hover {
  transform: translateY(-4px);
  border-color: var(--gray-300);
  box-shadow: var(--shadow-md);
}

.feature-icon {
  font-size: 2rem;
  color: var(--accent);
  margin-bottom: var(--space-md);
}

.feature-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: var(--space-xs);
  color: var(--primary);
}

.feature-text {
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
}

/* ===== PROJECT SHOWCASE ===== */
.project {
  background: var(--white);
  padding: var(--space-lg);
  border-radius: var(--radius);
  border: 1px solid var(--border-light);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.project:hover {
  box-shadow: var(--shadow-md);
}

.project-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 0.25rem;
}

.project-text {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  margin-bottom: var(--space-md);
  flex: 1;
}

/* ===== CTA SECTION ===== */
.cta {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: var(--white);
}

.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-xl);
  flex-wrap: wrap;
}

.cta-title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: var(--space-xs);
  color: var(--white);
}

.cta-text {
  font-size: 1.125rem;
  color: rgba(255,255,255,0.9);
}

.cta-actions .btn-primary {
  background: var(--white);
  color: var(--primary);
  padding: 0.875rem 2rem;
}

.cta-actions .btn-primary:hover {
  background: var(--off-white);
  box-shadow: var(--shadow-lg);
}

/* ===== FOOTER ===== */
.site-footer {
  background: var(--gray-900);
  color: var(--gray-300);
  padding-top: var(--space-xl);
}

.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-xl);
  padding-bottom: var(--space-xl);
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
}

.footer-brand strong {
  font-size: 1rem;
  color: var(--white);
}

.footer-logo {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
}

.footer-col strong {
  display: block;
  color: var(--white);
  margin-bottom: var(--space-md);
  font-weight: 600;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: var(--space-xs);
}

.footer-links a {
  color: var(--gray-300);
  text-decoration: none;
  font-size: 0.9375rem;
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--white);
  text-decoration: underline;
}

.footer-bottom {
  border-top: 1px solid var(--gray-800);
  padding-block: var(--space-lg);
  text-align: center;
}

/* ===== SKIP LINK ===== */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--accent);
  color: white;
  padding: var(--space-xs) var(--space-md);
  text-decoration: none;
  border-radius: 0 0 var(--radius-sm) 0;
  z-index: 300;
}

.skip-link:focus {
  top: 0;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 992px) {
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .hero-inner {
    grid-template-columns: 1fr;
  }
  
  .hero-card {
    max-width: 480px;
    margin-inline: auto;
  }
}

@media (max-width: 768px) {
  .section {
    padding-block: var(--space-xl);
  }
  
  .section-title {
    font-size: 1.875rem;
  }
  
  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
  }
  
  .hero-title {
    font-size: 2rem;
  }
  
  .hero-actions {
    flex-direction: column;
  }
  
  .hero-actions .btn {
    width: 100%;
  }
  
  .trust-row {
    gap: var(--space-md);
    justify-content: space-between;
  }
  
  .cta-inner {
    flex-direction: column;
    text-align: center;
  }
  
  .footer-inner {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
  
  /* Mobile navigation */
  .nav-toggle {
    display: flex;
  }
  
  .nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--white);
    padding: 80px var(--space-lg) var(--space-lg);
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
    z-index: 150;
  }
  
  .nav.active {
    right: 0;
  }
  
  .nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-md);
  }
  
  .nav-item {
    width: 100%;
  }
  
  .nav-link {
    width: 100%;
    padding: var(--space-sm);
  }
  
  .nav-item-lang {
    margin-left: 0;
    border-left: none;
    padding-left: 0;
    border-top: 1px solid var(--border-light);
    padding-top: var(--space-md);
    margin-top: var(--space-md);
  }
  
  /* Toggle animation */
  .nav-toggle.active .nav-toggle-bar:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }
  
  .nav-toggle.active .nav-toggle-bar:nth-child(2) {
    opacity: 0;
  }
  
  .nav-toggle.active .nav-toggle-bar:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
  }
}

@media (max-width: 480px) {
  .container {
    width: 100% - 1rem;
  }
  
  .hero-title {
    font-size: 1.75rem;
  }
  
  .trust-row {
    flex-direction: column;
    gap: var(--space-xs);
  }
  
  .card {
    padding: var(--space-md);
  }
  
  .brand-name {
    display: none; /* Hide on very small screens to save space */
  }
}

/* ===== ACCESSIBILITY & PRINT ===== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

@media print {
  .site-header,
  .hero-actions,
  .cta,
  .site-footer,
  .nav-toggle {
    display: none;
  }
  
  body {
    background: white;
    color: black;
  }
  
  a {
    color: black;
    text-decoration: underline;
  }
}

/* ===== CONTACT FORM STYLES ===== */
/* Add this to your existing style.css file */

/* Form Container */
.section .container form.card {
  max-width: 680px;
  margin: 0 auto;
  background: var(--white);
  border-radius: var(--radius);
  padding: var(--space-xl);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-light);
}

/* Form Labels */
form.card label {
  display: block;
  margin-bottom: var(--space-xs);
  font-weight: 500;
  color: var(--primary);
  font-size: 0.9375rem;
}

/* Form Inputs */
form.card input,
form.card textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  margin-bottom: var(--space-lg);
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.5;
  color: var(--text-primary);
  background: var(--white);
  transition: var(--transition);
}

/* Input Focus States */
form.card input:focus,
form.card textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

/* Input Placeholder Styling */
form.card input::placeholder,
form.card textarea::placeholder {
  color: var(--gray-600);
  opacity: 0.7;
}

/* Textarea Specific */
form.card textarea {
  resize: vertical;
  min-height: 120px;
}

/* Submit Button */
form.card .btn-primary {
  width: 100%;
  margin-top: var(--space-sm);
  padding: 0.875rem 1.5rem;
  font-size: 1rem;
  font-weight: 500;
  background: var(--accent);
  color: var(--white);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
}

form.card .btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

form.card .btn-primary:active {
  transform: translateY(0);
}

/* Required Field Indicator - Option 1: Using a span (recommended) */
.required-asterisk {
  color: var(--accent);
  margin-left: 2px;
}

/* Form Spacing for Mobile */
@media (max-width: 768px) {
  .section .container form.card {
    padding: var(--space-lg);
    margin: 0 var(--space-sm);
  }
  
  form.card input,
  form.card textarea {
    margin-bottom: var(--space-md);
  }
}

/* Form Validation Styling (optional) */
form.card input:invalid:not(:placeholder-shown),
form.card textarea:invalid:not(:placeholder-shown) {
  border-color: #dc2626;
}

form.card input:invalid:not(:placeholder-shown):focus,
form.card textarea:invalid:not(:placeholder-shown):focus {
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

/* Success/Error Message Styling */
.form-success {
  background: #10b981;
  color: white;
  padding: var(--space-md);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-lg);
  text-align: center;
}

.form-error {
  background: #dc2626;
  color: white;
  padding: var(--space-md);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-lg);
  text-align: center;
}

/* Form Grid Layout (if you want 2 columns later) */
.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
}

.form-grid .full-width {
  grid-column: span 2;
}

/* Optional: Add icon inside button */
.btn-primary i {
  margin-right: 0.5rem;
}