================================================================================
STYLE.CSS - MAIN STYLESHEET
================================================================================

:root {
  --primary-color: #CCDCEC;
  --secondary-color: #34546C;
  --background-color: #FFFFFF;
  --text-color: #000000;
  --border-color: #E0E0E0;
  --success-color: #4CAF50;
  --error-color: #F44336;
  --warning-color: #FF9800;
  --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
  color: var(--text-color);
  background-color: var(--primary-color);
  background: linear-gradient(135deg, #CCDCEC 0%, #B3C5E6 100%);
  min-height: 100vh;
  line-height: 1.6;
  font-size: 16px;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1;
}

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

h1 {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--secondary-color);
  margin-bottom: 1rem;
  line-height: 1.2;
}

h2 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--secondary-color);
  margin-bottom: 1rem;
  line-height: 1.2;
}

h3 {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--secondary-color);
  margin-bottom: 0.5rem;
}

h4 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--secondary-color);
}

p {
  margin-bottom: 1rem;
  color: var(--text-color);
  line-height: 1.8;
}

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

a:hover {
  opacity: 0.8;
}

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

header {
  background-color: #1a2633;
  border-bottom: 3px solid #1a2633;
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 4px 12px rgba(26, 38, 51, 0.5);
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: white;
}

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

nav a {
  color: white;
  font-weight: 500;
  padding: 0.5rem 0;
  border-bottom: 2px solid transparent;
  transition: all 0.3s ease;
}

nav a:hover {
  border-bottom-color: var(--primary-color);
  opacity: 0.8;
}

.login-btn {
  background-color: var(--primary-color);
  color: var(--secondary-color);
  padding: 0.75rem 1.5rem;
  border-radius: 25px;
  font-weight: 600;
  transition: all 0.3s ease;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.login-btn:hover {
  background-color: white;
  opacity: 1;
  transform: translateY(-2px);
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

/* Mobile Menu */
.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: white;
}

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

.hero {
  background: linear-gradient(135deg, var(--secondary-color) 0%, #2a3d52 100%);
  padding: 6rem 1rem;
  text-align: center;
  min-height: 500px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="20" cy="20" r="2" fill="rgba(204, 220, 236, 0.1)"/><circle cx="80" cy="80" r="3" fill="rgba(204, 220, 236, 0.1)"/><circle cx="50" cy="50" r="1.5" fill="rgba(204, 220, 236, 0.1)"/></svg>');
  opacity: 0.3;
}

.hero-content {
  max-width: 600px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.hero h1 {
  color: white;
  margin-bottom: 1.5rem;
  font-size: 2.2rem;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
  letter-spacing: -0.5px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.hero p {
  color: var(--primary-color);
  font-size: 1.1rem;
  margin-bottom: 2rem;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.cta-button {
  display: inline-block;
  background-color: var(--primary-color);
  color: var(--secondary-color);
  padding: 1rem 3rem;
  border-radius: 30px;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 0.3s ease;
  min-height: 48px;
  min-width: 48px;
  text-align: center;
  line-height: 1.5;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

.cta-button:hover {
  background-color: white;
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

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

.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: 4px;
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  border: none;
  transition: all 0.3s ease;
  min-height: 44px;
  min-width: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn-primary {
  background-color: var(--primary-color);
  color: var(--secondary-color);
  box-shadow: 0 4px 8px rgba(52, 84, 108, 0.15);
  transition: all 0.3s ease;
  font-weight: 600;
  border: none;
}

.btn-primary:hover {
  background-color: #1a2633;
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 6px 12px rgba(26, 38, 51, 0.4);
}

.btn-secondary {
  background-color: transparent;
  color: var(--secondary-color);
  border: 2px solid var(--secondary-color);
  transition: all 0.3s ease;
}

.btn-secondary:hover {
  background-color: var(--secondary-color);
  color: white;
  box-shadow: 0 4px 8px rgba(52, 84, 108, 0.2);
}

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

.btn-danger:hover {
  background-color: #da190b;
}

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

.btn-success:hover {
  background-color: #45a049;
}

/* ============================================================ */
/* MAIN CONTAINER */
/* ============================================================ */

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* ============================================================ */
/* SECTIONS */
/* ============================================================ */

.section {
  padding: 4rem 1rem;
  margin: 2rem 0;
}

.section h2 {
  text-align: center;
  margin-bottom: 2rem;
}

.section-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin: 2rem 0;
}

.card {
  background-color: white;
  border: none;
  border-radius: 12px;
  padding: 2rem;
  box-shadow: 0 4px 12px rgba(52, 84, 108, 0.1);
  transition: all 0.3s ease;
  border-left: 4px solid var(--secondary-color);
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 8px 24px rgba(52, 84, 108, 0.15);
  border-left: 4px solid var(--primary-color);
}

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

/* ============================================================ */
/* TESTIMONIALS */
/* ============================================================ */

.testimonial {
  background-color: white;
  padding: 2rem;
  border-radius: 12px;
  border-left: 5px solid var(--secondary-color);
  margin: 1rem 0;
  box-shadow: 0 4px 12px rgba(52, 84, 108, 0.1);
  transition: all 0.3s ease;
}

.testimonial:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 20px rgba(52, 84, 108, 0.15);
}

.testimonial-author {
  font-weight: 600;
  color: var(--secondary-color);
  margin-top: 1rem;
}

.rating {
  color: #FFB800;
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

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

footer {
  background-color: #1a2633;
  color: white;
  padding: 3rem 1rem;
  margin-top: 2rem;
  box-shadow: 0 -4px 12px rgba(26, 38, 51, 0.5);
  width: 100%;
}

footer a {
  color: var(--primary-color);
}

footer a:hover {
  text-decoration: underline;
}

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

.footer-section h4 {
  color: var(--primary-color);
  margin-bottom: 1rem;
}

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

.footer-section ul li {
  margin-bottom: 0.5rem;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  padding-top: 2rem;
  text-align: center;
  font-size: 0.9rem;
}

/* ============================================================ */
/* FORMS */
/* ============================================================ */

form {
  max-width: 500px;
  margin: 2rem auto;
  padding: 2rem;
  background-color: white;
  border: none;
  border-radius: 12px;
  box-shadow: 0 4px 16px rgba(52, 84, 108, 0.12);
}

.form-group {
  margin-bottom: 1.5rem;
}

label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: var(--secondary-color);
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="tel"],
textarea,
select {
  width: 100%;
  padding: 0.75rem;
  border: 2px solid #E0E0E0;
  border-radius: 6px;
  font-size: 1rem;
  font-family: inherit;
  transition: all 0.3s ease;
  background-color: #F8FBFD;
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--secondary-color);
  background-color: white;
  box-shadow: 0 0 0 4px rgba(52, 84, 108, 0.1);
}

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

.form-error {
  color: var(--error-color);
  font-size: 0.9rem;
  margin-top: 0.25rem;
}

.form-success {
  color: var(--success-color);
  padding: 1rem;
  background-color: rgba(76, 175, 80, 0.1);
  border-radius: 4px;
  margin-bottom: 1rem;
}

/* ============================================================ */
/* ALERTS & MESSAGES */
/* ============================================================ */

.alert {
  padding: 1rem;
  border-radius: 4px;
  margin-bottom: 1rem;
}

.alert-success {
  background-color: #d4edda;
  color: #155724;
  border: 1px solid #c3e6cb;
}

.alert-error {
  background-color: #f8d7da;
  color: #721c24;
  border: 1px solid #f5c6cb;
}

.alert-warning {
  background-color: #fff3cd;
  color: #856404;
  border: 1px solid #ffeaa7;
}

.alert-info {
  background-color: #d1ecf1;
  color: #0c5460;
  border: 1px solid #bee5eb;
}

/* ============================================================ */
/* RESPONSIVE DESIGN - TABLET */
/* ============================================================ */

@media (max-width: 768px) {
  h1 {
    font-size: 1.8rem;
  }

  h2 {
    font-size: 1.5rem;
  }

  nav ul {
    gap: 1rem;
  }

  nav a {
    font-size: 0.9rem;
  }

  .hero {
    padding: 4rem 1rem;
    min-height: 350px;
  }

  .hero h1 {
    font-size: 1.8rem;
  }

  .section {
    padding: 2rem 1rem;
  }

  .section-grid {
    grid-template-columns: 1fr;
  }

  .footer-content {
    grid-template-columns: 1fr;
  }

  .card {
    border-left: 3px solid var(--secondary-color);
  }
}

/* ============================================================ */
/* RESPONSIVE DESIGN - MOBILE */
/* ============================================================ */

@media (max-width: 480px) {
  body {
    font-size: 14px;
  }

  .header-container {
    flex-wrap: wrap;
  }

  .mobile-menu-toggle {
    display: block;
  }

  nav {
    display: none;
    width: 100%;
  }

  nav.active {
    display: block;
  }

  nav ul {
    flex-direction: column;
    gap: 0.5rem;
    padding: 1rem 0;
  }

  nav a {
    display: block;
    padding: 0.75rem;
  }

  h1 {
    font-size: 1.5rem;
  }

  h2 {
    font-size: 1.2rem;
  }

  .hero {
    padding: 3rem 1rem;
    min-height: 300px;
  }

  .hero h1 {
    font-size: 1.4rem;
  }

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

  .cta-button {
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
  }

  form {
    padding: 1rem;
  }

  .section-grid {
    gap: 1rem;
  }

  .card {
    padding: 1rem;
  }

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

/* ============================================================ */
/* UTILITY CLASSES */
/* ============================================================ */

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

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

.mt-1 {
  margin-top: 0.5rem;
}

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

.mt-3 {
  margin-top: 1.5rem;
}

.mb-1 {
  margin-bottom: 0.5rem;
}

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

.mb-3 {
  margin-bottom: 1.5rem;
}

.hidden {
  display: none;
}

.visible {
  display: block;
}

/* ============================================================ */