/*
 * Finding AI Main Stylesheet
 * Components, Layout, and UI Elements
 */

/* Import base styles */
@import url('base.css');

/* Import Google Fonts with display=swap for performance */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@300;400;500;600;700;800&family=Inter:wght@300;400;500;600;700;800&display=swap');

/* Layout Components */

/* Header */
.header {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-gray-200);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-50);
  transition: all var(--transition-base);
}

.header.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-md);
}

.header__container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-4);
  max-width: 1200px;
  margin: 0 auto;
}

.header__logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-xl);
  color: var(--color-gray-900);
  gap: var(--space-3);
}

.header__logo img {
  height: 40px;
  width: auto;
}

.header__logo:hover {
  color: var(--color-primary-blue);
  text-decoration: none;
}

/* Navigation */
.nav {
  display: none;
}

.nav__list {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav__item {
  margin: 0;
}

.nav__link {
  color: var(--color-gray-700);
  text-decoration: none;
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-base);
  padding: var(--space-2) var(--space-1);
  border-radius: var(--radius);
  transition: all var(--transition-fast);
  position: relative;
}

.nav__link:hover {
  color: var(--color-primary-blue);
}

.nav__link.active {
  color: var(--color-primary-blue);
}

.nav__link.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-primary);
  border-radius: var(--radius);
}

@media (min-width: 768px) {
  .nav {
    display: block;
  }
  
  .header__container {
    padding: var(--space-4) var(--space-6);
  }
}

@media (min-width: 1024px) {
  .header__container {
    padding: var(--space-4) var(--space-8);
  }
}

/* Mobile Navigation */
.mobile-nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  width: 24px;
  height: 24px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
}

.mobile-nav-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--color-gray-700);
  margin: 2px 0;
  transition: all var(--transition-base);
  transform-origin: center;
}

.mobile-nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(4px, 4px);
}

.mobile-nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.mobile-nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(4px, -4px);
}

.mobile-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(10px);
  z-index: var(--z-40);
  padding: var(--space-20) var(--space-4);
  transform: translateX(100%);
  transition: transform var(--transition-base);
}

.mobile-nav.active {
  transform: translateX(0);
}

.mobile-nav__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  list-style: none;
  margin: 0;
  padding: 0;
}

.mobile-nav__link {
  color: var(--color-gray-900);
  text-decoration: none;
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-xl);
}

@media (min-width: 768px) {
  .mobile-nav-toggle {
    display: none;
  }
  
  .mobile-nav {
    display: none;
  }
}

/* CTA Button */
.cta-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  background: var(--gradient-primary);
  color: var(--color-white);
  text-decoration: none;
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-base);
  border-radius: var(--radius-xl);
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-sm);
  white-space: nowrap;
}

.cta-button:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
  color: var(--color-white);
}

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

.cta-button--secondary {
  background: var(--color-white);
  color: var(--color-primary-blue);
  border: 2px solid var(--color-primary-blue);
}

.cta-button--secondary:hover {
  background: var(--color-primary-blue);
  color: var(--color-white);
}

.cta-button--large {
  padding: var(--space-4) var(--space-8);
  font-size: var(--font-size-lg);
}

/* Main Content */
.main {
  margin-top: 80px; /* Account for fixed header */
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, var(--color-gray-50) 0%, rgba(37, 99, 235, 0.05) 100%);
  padding: var(--space-16) 0 var(--space-20);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%232563eb' fill-opacity='0.03'%3E%3Cpath d='M30 30c0-11.046-8.954-20-20-20s-20 8.954-20 20 8.954 20 20 20 20-8.954 20-20zm0 0c0 11.046 8.954 20 20 20s20-8.954 20-20-8.954-20-20-20-20 8.954-20 20z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  pointer-events: none;
}

.hero__content {
  position: relative;
  z-index: 1;
}

.hero__tagline {
  font-size: var(--font-size-lg);
  color: var(--color-primary-blue);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-4);
}

.hero__title {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-extrabold);
  line-height: var(--line-height-tight);
  margin-bottom: var(--space-6);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__description {
  font-size: var(--font-size-lg);
  color: var(--color-gray-600);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-8);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero__actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  align-items: center;
}

@media (min-width: 640px) {
  .hero {
    padding: var(--space-20) 0 var(--space-24);
  }
  
  .hero__title {
    font-size: var(--font-size-5xl);
  }
  
  .hero__actions {
    flex-direction: row;
    justify-content: center;
  }
}

@media (min-width: 1024px) {
  .hero {
    padding: var(--space-24) 0 var(--space-32);
  }
  
  .hero__title {
    font-size: var(--font-size-6xl);
  }
}

/* Section */
.section {
  padding: var(--space-16) 0;
}

.section--alt {
  background-color: var(--color-gray-50);
}

.section__header {
  text-align: center;
  margin-bottom: var(--space-12);
}

.section__subtitle {
  color: var(--color-primary-blue);
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-base);
  margin-bottom: var(--space-2);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.section__title {
  margin-bottom: var(--space-4);
}

.section__description {
  font-size: var(--font-size-lg);
  color: var(--color-gray-600);
  max-width: 600px;
  margin: 0 auto;
}

/* Grid */
.grid {
  display: grid;
  gap: var(--space-8);
}

.grid--2 {
  grid-template-columns: 1fr;
}

.grid--3 {
  grid-template-columns: 1fr;
}

.grid--4 {
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .grid--2 {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .grid--4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

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

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

/* Card */
.card {
  background: var(--color-white);
  border-radius: var(--radius-2xl);
  padding: var(--space-8);
  border: 1px solid var(--color-gray-200);
  transition: all var(--transition-base);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
  border-color: var(--color-primary-blue);
}

.card__icon {
  width: 48px;
  height: 48px;
  background: var(--gradient-primary);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-4);
  color: var(--color-white);
  font-size: var(--font-size-2xl);
}

.card__title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--space-3);
  color: var(--color-gray-900);
}

.card__description {
  color: var(--color-gray-600);
  flex-grow: 1;
  margin-bottom: 0;
}

/* Steps */
.steps {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}

.step {
  display: flex;
  flex-direction: column;
  text-align: center;
  position: relative;
}

.step__number {
  width: 48px;
  height: 48px;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-lg);
  margin: 0 auto var(--space-4);
}

.step__title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--space-2);
}

.step__description {
  color: var(--color-gray-600);
}

@media (min-width: 768px) {
  .steps {
    flex-direction: row;
    align-items: flex-start;
  }
  
  .step {
    flex: 1;
  }
  
  .step:not(:last-child)::after {
    content: '→';
    position: absolute;
    top: 24px;
    right: -50px;
    font-size: var(--font-size-2xl);
    color: var(--color-primary-blue);
    z-index: 1;
  }
}

/* FAQ */
.faq {
  max-width: 800px;
  margin: 0 auto;
}

.faq__item {
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-xl);
  margin-bottom: var(--space-4);
  overflow: hidden;
}

.faq__question {
  width: 100%;
  text-align: left;
  background: var(--color-white);
  border: none;
  padding: var(--space-6);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-gray-900);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: all var(--transition-fast);
}

.faq__question:hover {
  background: var(--color-gray-50);
}

.faq__question[aria-expanded="true"] {
  background: var(--color-gray-50);
  color: var(--color-primary-blue);
}

.faq__icon {
  font-size: var(--font-size-xl);
  transition: transform var(--transition-fast);
}

.faq__question[aria-expanded="true"] .faq__icon {
  transform: rotate(180deg);
}

.faq__answer {
  padding: 0 var(--space-6) var(--space-6);
  color: var(--color-gray-600);
  line-height: var(--line-height-loose);
  display: none;
}

.faq__answer.show {
  display: block;
  animation: slideDown var(--transition-base) ease-out;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Form */
.form {
  max-width: 600px;
  margin: 0 auto;
}

.form__group {
  margin-bottom: var(--space-6);
}

.form__label {
  display: block;
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--space-2);
  color: var(--color-gray-900);
}

.form__label--required::after {
  content: ' *';
  color: var(--color-error);
}

.form__input,
.form__textarea,
.form__select {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border: 2px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  font-size: var(--font-size-base);
  font-family: inherit;
  background: var(--color-white);
  transition: all var(--transition-fast);
}

.form__input:focus,
.form__textarea:focus,
.form__select:focus {
  outline: none;
  border-color: var(--color-primary-blue);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form__input.error,
.form__textarea.error,
.form__select.error {
  border-color: var(--color-error);
}

.form__textarea {
  resize: vertical;
  min-height: 120px;
}

.form__checkbox-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.form__checkbox {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.form__checkbox input[type="checkbox"] {
  width: 18px;
  height: 18px;
  margin: 0;
}

.form__error {
  color: var(--color-error);
  font-size: var(--font-size-sm);
  margin-top: var(--space-1);
}

.form__submit {
  width: 100%;
  padding: var(--space-4);
  font-size: var(--font-size-lg);
}

/* Footer */
.footer {
  background: var(--color-gray-900);
  color: var(--color-gray-300);
  padding: var(--space-16) 0 var(--space-8);
  margin-top: var(--space-20);
}

.footer__content {
  display: grid;
  gap: var(--space-8);
  margin-bottom: var(--space-12);
}

.footer__section h3 {
  color: var(--color-white);
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-4);
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.footer__links a {
  color: var(--color-gray-300);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer__links a:hover {
  color: var(--color-white);
}

.footer__social {
  display: flex;
  gap: var(--space-4);
}

.footer__social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--color-gray-800);
  border-radius: var(--radius-full);
  color: var(--color-gray-300);
  text-decoration: none;
  transition: all var(--transition-fast);
}

.footer__social a:hover {
  background: var(--color-primary-blue);
  color: var(--color-white);
}

.footer__bottom {
  border-top: 1px solid var(--color-gray-800);
  padding-top: var(--space-8);
  text-align: center;
  color: var(--color-gray-400);
  font-size: var(--font-size-sm);
}

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

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

/* Utility Classes */
.text-center {
  text-align: center;
}

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

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

.mb-0 {
  margin-bottom: 0 !important;
}

.mt-8 {
  margin-top: var(--space-8);
}

.mb-8 {
  margin-bottom: var(--space-8);
}

.hidden {
  display: none;
}

.visible {
  display: block;
}

/* Loading states */
.loading {
  opacity: 0.6;
  pointer-events: none;
}

.spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid var(--color-gray-300);
  border-radius: 50%;
  border-top-color: var(--color-primary-blue);
  animation: spin 1s ease-in-out infinite;
}

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

/* Toast notifications */
.toast {
  position: fixed;
  top: var(--space-20);
  right: var(--space-4);
  background: var(--color-success);
  color: var(--color-white);
  padding: var(--space-4) var(--space-6);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  z-index: var(--z-50);
  transform: translateX(100%);
  transition: transform var(--transition-base);
}

.toast.show {
  transform: translateX(0);
}

.toast--error {
  background: var(--color-error);
}

.toast--warning {
  background: var(--color-warning);
}

/* Print styles */
@media print {
  .header,
  .mobile-nav,
  .cta-button,
  .footer {
    display: none !important;
  }
  
  .main {
    margin-top: 0 !important;
  }
  
  * {
    background: transparent !important;
    color: black !important;
    box-shadow: none !important;
  }
  
  a[href]:after {
    content: " (" attr(href) ")";
  }
}