/* ===================================
   Contact Form Page Styles
   KeyKey (キー・マネジメント・システム)
   =================================== */

/* ----- CSS Variables ----- */
:root {
  --primary-color: #0066cc;
  --secondary-color: #00a6ff;
  --accent-color: #ff6b35;
  --dark-blue: #1C4C95;
  --navy-blue: #000066;
  --text-dark: #333;
  --text-light: #666;
  --bg-light: #f8f9fa;
  --white: #ffffff;
  --border-color: #ddd;
  --error-color: #e74c3c;
  --success-color: #27ae60;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);
}

/* ----- Reset & Base Styles ----- */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Helvetica Neue', 'Yu Gothic', YuGothic, 'Hiragino Kaku Gothic ProN', 'ヒラギノ角ゴ ProN W3', Meiryo, メイリオ, sans-serif;
  color: var(--text-dark);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ----- Hero Section ----- */
.contact-hero {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--dark-blue) 100%);
  color: var(--white);
  padding: 80px 20px 60px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.contact-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 1200 120"><path d="M0,0V46.29c47.79,22.2,103.59,32.17,158,28,70.36-5.37,136.33-33.31,206.8-37.5C438.64,32.43,512.34,53.67,583,72.05c69.27,18,138.3,24.88,209.4,13.08,36.15-6,69.85-17.84,104.45-29.34C989.49,25,1113-14.29,1200,52.47V0Z" opacity=".1" fill="%23ffffff"/></svg>') no-repeat bottom;
  background-size: cover;
  opacity: 0.3;
}

.contact-hero .container {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin: 0 auto;
}

.contact-hero h1 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 15px;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.contact-hero p {
  font-size: 1.1rem;
  opacity: 0.95;
  max-width: 700px;
  margin: 0 auto;
}

/* ----- Container ----- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ----- Contact Methods Section ----- */
.contact-methods {
  background: var(--bg-light);
  padding: 60px 20px;
}

.contact-methods h2 {
  text-align: center;
  font-size: 2rem;
  color: var(--dark-blue);
  margin-bottom: 40px;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  max-width: 1000px;
  margin: 0 auto;
}

.contact-method-card {
  background: var(--white);
  border-radius: 12px;
  padding: 30px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.contact-method-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.contact-method-card .icon {
  font-size: 2.5rem;
  color: var(--primary-color);
  margin-bottom: 15px;
}

.contact-method-card h3 {
  font-size: 1.3rem;
  color: var(--dark-blue);
  margin-bottom: 10px;
}

.contact-method-card a {
  color: var(--primary-color);
  text-decoration: none;
  font-size: 1.1rem;
  font-weight: 600;
  transition: var(--transition);
}

.contact-method-card a:hover {
  color: var(--accent-color);
}

/* ----- Form Section ----- */
.contact-form-section {
  padding: 80px 20px;
  background: var(--white);
}

.contact-form-section h2 {
  text-align: center;
  font-size: 2rem;
  color: var(--dark-blue);
  margin-bottom: 15px;
}

.form-intro {
  text-align: center;
  color: var(--text-light);
  margin-bottom: 50px;
  font-size: 1rem;
}

/* ----- Form Styles ----- */
.contact-form {
  max-width: 800px;
  margin: 0 auto;
  background: var(--white);
  border-radius: 12px;
  padding: 40px;
  box-shadow: var(--shadow-md);
}

.form-group {
  margin-bottom: 30px;
}

.form-group label {
  display: block;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 10px;
}

.form-group .required {
  color: var(--error-color);
  margin-left: 4px;
}

.form-note {
  font-size: 0.85rem;
  color: var(--text-light);
  margin-top: 5px;
}

/* ----- Radio Button Group ----- */
.radio-group {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.radio-label {
  display: flex;
  align-items: center;
  padding: 12px 16px;
  border: 2px solid var(--border-color);
  border-radius: 8px;
  cursor: pointer;
  transition: var(--transition);
  background: var(--white);
  margin: 0 !important;
}

.radio-label:hover {
  border-color: var(--primary-color);
  background: rgba(0, 102, 204, 0.03);
}

.radio-label input[type="radio"] {
  width: 20px;
  height: 20px;
  margin-right: 12px;
  cursor: pointer;
  accent-color: var(--primary-color);
}

.radio-label input[type="radio"]:checked + span {
  color: var(--primary-color);
  font-weight: 600;
}

.radio-label input[type="radio"]:checked {
  background: var(--primary-color);
}

.radio-label span {
  flex: 1;
  font-size: 0.95rem;
  transition: var(--transition);
}

/* ----- Input Fields ----- */
.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 14px 16px;
  font-size: 1rem;
  font-family: inherit;
  border: 2px solid var(--border-color);
  border-radius: 8px;
  transition: var(--transition);
  background: var(--white);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 4px rgba(0, 102, 204, 0.1);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: #aaa;
}

.form-select {
  cursor: pointer;
  background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="%23666"><path d="M7 10l5 5 5-5z"/></svg>');
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 24px;
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
}

.form-textarea {
  min-height: 150px;
  resize: vertical;
  line-height: 1.6;
}

/* ----- Two Column Layout ----- */
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

/* ----- Checkbox Group ----- */
.checkbox-group {
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
}

.checkbox-label {
  display: flex;
  align-items: center;
  padding: 10px 16px;
  border: 2px solid var(--border-color);
  border-radius: 8px;
  cursor: pointer;
  transition: var(--transition);
  background: var(--white);
}

.checkbox-label:hover {
  border-color: var(--primary-color);
  background: rgba(0, 102, 204, 0.03);
}

.checkbox-label input[type="checkbox"] {
  width: 18px;
  height: 18px;
  margin-right: 10px;
  cursor: pointer;
  accent-color: var(--primary-color);
}

.checkbox-label span {
  font-size: 0.95rem;
  transition: var(--transition);
}

.checkbox-label input[type="checkbox"]:checked + span {
  color: var(--primary-color);
  font-weight: 600;
}

/* ----- Submit Button ----- */
.submit-container {
  text-align: center;
  margin-top: 20px !important;
}

.submit-button {
  display: inline-block;
  padding: 16px 60px;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--white);
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
  border: none;
  border-radius: 50px;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

.submit-button::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transition: left 0.5s;
}

.submit-button:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.submit-button:hover::before {
  left: 100%;
}

.submit-button:active {
  transform: translateY(0);
}

.submit-button:disabled {
  background: #ccc;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* ----- Validation States ----- */
.form-input.error,
.form-select.error,
.form-textarea.error {
  border-color: var(--error-color);
}

.form-input.success,
.form-select.success,
.form-textarea.success {
  border-color: var(--success-color);
}

.error-message {
  display: none;
  color: var(--error-color);
  font-size: 0.85rem;
  margin-top: 6px;
  animation: fadeIn 0.3s ease;
}

.error-message.show {
  display: block;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(-5px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ----- Notes Section ----- */
.form-notes {
  background: var(--bg-light);
  border-left: 4px solid var(--primary-color);
  padding: 20px 25px;
  margin-top: 40px;
  border-radius: 8px;
}

.form-notes h3 {
  font-size: 1.1rem;
  color: var(--dark-blue);
  margin-bottom: 10px;
}

.form-notes ul {
  list-style: none;
  padding-left: 0;
}

.form-notes li {
  font-size: 0.9rem;
  color: var(--text-light);
  margin-bottom: 8px;
  padding-left: 20px;
  position: relative;
}

.form-notes li::before {
  content: '●';
  color: var(--primary-color);
  position: absolute;
  left: 0;
}

/* ----- Loading State ----- */
.submit-button.loading {
  pointer-events: none;
  opacity: 0.7;
}

.submit-button.loading::after {
  content: '';
  display: inline-block;
  width: 16px;
  height: 16px;
  margin-left: 10px;
  border: 2px solid var(--white);
  border-top-color: transparent;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* ----- Success Message ----- */
.success-message {
  display: none;
  text-align: center;
  padding: 30px;
  background: var(--success-color);
  color: var(--white);
  border-radius: 12px;
  margin-top: 30px;
  animation: slideDown 0.5s ease;
}

.success-message.show {
  display: block;
}

.success-message h3 {
  font-size: 1.5rem;
  margin-bottom: 10px;
}

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

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

/* Tablet */
@media (max-width: 768px) {
  .contact-hero {
    padding: 60px 20px 40px;
  }

  .contact-hero h1 {
    font-size: 2rem;
  }

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

  .contact-methods h2,
  .contact-form-section h2 {
    font-size: 1.7rem;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .contact-form {
    padding: 30px 20px;
  }

  .form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .radio-group {
    gap: 10px;
  }

  .radio-label {
    padding: 10px 14px;
  }

  .checkbox-group {
    flex-direction: column;
    gap: 10px;
  }

  .submit-button {
    width: 100%;
    padding: 16px 30px;
  }
}

/* Mobile */
@media (max-width: 480px) {
  .contact-hero {
    padding: 40px 15px 30px;
  }

  .contact-hero h1 {
    font-size: 1.7rem;
  }

  .contact-hero p {
    font-size: 0.95rem;
  }

  .contact-methods,
  .contact-form-section {
    padding: 40px 15px;
  }

  .contact-methods h2,
  .contact-form-section h2 {
    font-size: 1.5rem;
  }

  .contact-form {
    padding: 25px 15px;
    border-radius: 8px;
  }

  .form-input,
  .form-select,
  .form-textarea {
    padding: 12px 14px;
    font-size: 0.95rem;
  }

  .radio-label,
  .checkbox-label {
    padding: 10px 12px;
  }

  .radio-label span,
  .checkbox-label span {
    font-size: 0.9rem;
  }

  .submit-container {
    margin-top: 20px;
  }

  .submit-button {
    font-size: 1rem;
    padding: 14px 30px;
  }

  .form-notes {
    padding: 15px 20px;
  }
}

/* Print Styles */
@media print {
  .submit-button {
    display: none;
  }

  .contact-form {
    box-shadow: none;
    border: 1px solid var(--border-color);
  }
}