/* ==========================================================================
   Yemma Labs — Components
   Buttons, cards, forms, nav, footer.
   ========================================================================== */

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-body);
  font-size: var(--text-body);
  font-weight: var(--weight-medium);
  padding: var(--space-3) var(--space-6);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  min-height: 44px;
  min-width: 44px;
  transition: transform var(--transition-fast),
              box-shadow var(--transition-fast),
              background-color var(--transition-fast);
  text-decoration: none;
  line-height: 1;
}

.btn:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.btn-primary {
  background-color: var(--color-accent);
  color: #FAF7F2;
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
  color: #FAF7F2;
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn-secondary:hover {
  background-color: var(--color-primary);
  color: var(--color-bg);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-secondary:active {
  transform: translateY(0);
}

.btn-ghost {
  background-color: transparent;
  color: var(--color-accent);
  padding: var(--space-2) var(--space-4);
}

.btn-ghost:hover {
  color: var(--color-primary);
}

/* Arrow button variant */
.btn-arrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

.btn-arrow .arrow {
  display: inline-block;
  transition: transform var(--transition-fast);
}

.btn-arrow:hover .arrow {
  transform: translateX(4px);
}

/* Large button modifier */
.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-body-lg);
}

/* ---------- Navigation ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background-color: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition-base);
}

.site-header.scrolled {
  box-shadow: var(--shadow-sm);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

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

.nav-logo img,
.nav-logo svg {
  height: 34px;
  width: auto;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.nav-link {
  position: relative;
  font-family: var(--font-body);
  font-size: var(--text-body);
  font-weight: var(--weight-medium);
  color: var(--color-text);
  text-decoration: none;
  padding: var(--space-2) 0;
  transition: color var(--transition-fast);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-accent);
  transition: width var(--transition-base);
}

.nav-link:hover {
  color: var(--color-accent);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

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

.nav-cta {
  margin-left: var(--space-4);
}

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: var(--space-2);
  background: none;
  border: none;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-primary);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.nav-toggle.open span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

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

.nav-toggle.open span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    bottom: 0;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    gap: var(--space-6);
    padding-top: var(--space-12);
    background-color: var(--color-bg);
    transform: translateX(100%);
    transition: transform var(--transition-smooth);
    z-index: var(--z-overlay);
  }

  .nav-links.open {
    transform: translateX(0);
  }

  .nav-cta {
    margin-left: 0;
    margin-top: var(--space-4);
  }
}

/* ---------- Homepage Transparent Header ---------- */

.page-home .site-header,
.page-contact .site-header {
  position: fixed;
  width: 100%;
  padding-top: var(--space-4);
  background-color: transparent;
  border-bottom: 1px solid transparent;
  transition: padding-top var(--transition-smooth),
              background-color var(--transition-smooth),
              box-shadow var(--transition-base),
              border-bottom-color var(--transition-smooth);
}

.page-home .site-header.scrolled,
.page-contact .site-header.scrolled {
  padding-top: 0;
}

.page-home .site-header.scrolled {
  background-color: var(--color-bg);
  border-bottom-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}

.page-home .nav-logo svg text {
  transition: fill var(--transition-smooth);
  fill: var(--color-bg);
}

.page-home .site-header.scrolled .nav-logo svg text {
  fill: var(--color-primary);
}

.page-home .nav-logo svg text[opacity] {
  fill: rgba(250, 247, 242, 0.7);
}

.page-home .site-header.scrolled .nav-logo svg text[opacity] {
  fill: var(--color-primary);
}

.page-home .nav-link {
  color: rgba(250, 247, 242, 0.9);
}

.page-home .site-header.scrolled .nav-link {
  color: var(--color-text);
}

.page-home .nav-link:hover {
  color: var(--color-bg);
}

.page-home .site-header.scrolled .nav-link:hover {
  color: var(--color-accent);
}

.page-home .nav-cta {
  background-color: transparent;
  border: 1px solid rgba(250, 247, 242, 0.6);
  color: var(--color-bg);
  transition: background-color var(--transition-smooth),
              border-color var(--transition-smooth),
              color var(--transition-smooth);
}

.page-home .nav-cta:hover {
  background-color: rgba(250, 247, 242, 0.15);
  border-color: var(--color-bg);
}

.page-home .site-header.scrolled .nav-cta {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  color: #fff;
}

.page-home .site-header.scrolled .nav-cta:hover {
  background-color: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
}

.page-home .nav-toggle span {
  background-color: var(--color-bg);
  transition: background-color var(--transition-smooth),
              transform var(--transition-base),
              opacity var(--transition-base);
}

.page-home .site-header.scrolled .nav-toggle span {
  background-color: var(--color-primary);
}

@media (max-width: 768px) {
  .page-home .nav-links {
    background-color: var(--color-primary);
  }

  .page-home .nav-links .nav-link {
    color: rgba(250, 247, 242, 0.9);
  }

  .page-home .site-header.scrolled .nav-links {
    background-color: var(--color-bg);
  }

  .page-home .site-header.scrolled .nav-links .nav-link {
    color: var(--color-text);
  }
}

/* Contact page — always-white nav (dark background throughout) */
.page-contact .nav-logo svg text {
  fill: var(--color-bg);
}

.page-contact .nav-logo svg text[opacity] {
  fill: rgba(250, 247, 242, 0.7);
}

.page-contact .nav-link {
  color: rgba(250, 247, 242, 0.9);
}

.page-contact .nav-link:hover {
  color: var(--color-bg);
}

.page-contact .nav-toggle span {
  background-color: var(--color-bg);
}

.page-contact .site-header.scrolled {
  background-color: var(--color-primary);
  border-bottom-color: rgba(255, 255, 255, 0.1);
}

@media (max-width: 768px) {
  .page-contact .nav-links {
    background-color: var(--color-primary);
  }

  .page-contact .nav-links .nav-link {
    color: rgba(250, 247, 242, 0.9);
  }
}

/* ---------- Cards ---------- */

.card {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-8);
  transition: transform var(--transition-slow),
              box-shadow var(--transition-slow);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.card-image {
  width: 100%;
  aspect-ratio: 16 / 10;
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: var(--space-6);
  background-color: var(--color-surface);
}

.card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.card:hover .card-image img {
  transform: scale(1.02);
}

.card-title {
  font-family: var(--font-heading);
  font-size: var(--text-h3);
  font-weight: var(--weight-semibold);
  color: var(--color-primary);
  margin-bottom: var(--space-2);
}

.card-text {
  color: var(--color-text-muted);
  font-size: var(--text-body);
}

/* Skeleton loading state */
.skeleton {
  background: linear-gradient(
    90deg,
    var(--color-surface) 25%,
    var(--color-border) 50%,
    var(--color-surface) 75%
  );
  background-size: 200% 100%;
  animation: skeleton-pulse 1.5s ease-in-out infinite;
  border-radius: var(--radius-sm);
}

@keyframes skeleton-pulse {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.skeleton-text {
  height: 16px;
  margin-bottom: var(--space-2);
}

.skeleton-text:last-child {
  width: 60%;
}

.skeleton-title {
  height: 24px;
  width: 70%;
  margin-bottom: var(--space-4);
}

.skeleton-image {
  aspect-ratio: 16 / 10;
  margin-bottom: var(--space-6);
  border-radius: var(--radius-md);
}

/* ---------- Forms ---------- */

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

.form-label {
  display: block;
  font-size: var(--text-small);
  font-weight: var(--weight-medium);
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.form-input,
.form-textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-body);
  font-size: var(--text-body);
  color: var(--color-text);
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition-fast),
              box-shadow var(--transition-fast);
  min-height: 44px;
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-placeholder);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(27, 63, 110, 0.1);
}

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

.form-input.error:focus,
.form-textarea.error:focus {
  box-shadow: 0 0 0 3px rgba(192, 57, 43, 0.1);
}

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

.form-error {
  display: none;
  font-size: var(--text-small);
  color: var(--color-error);
  margin-top: var(--space-1);
}

.form-group.has-error .form-error {
  display: block;
}

.form-submit {
  width: 100%;
}

.form-submit.sending {
  pointer-events: none;
  opacity: 0.8;
  animation: pulse 1.2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 0.8; }
  50% { opacity: 0.6; }
}

/* Form success state */
.form-success {
  text-align: center;
  padding: var(--space-12) var(--space-8);
}

.form-success h3 {
  margin-bottom: var(--space-4);
  color: var(--color-success);
}

.form-success p {
  color: var(--color-text-muted);
  font-size: var(--text-body-lg);
}

/* Dark form variant */
.form-dark .form-label {
  color: var(--color-bg);
  font-weight: var(--weight-medium);
}

.form-dark .form-input,
.form-dark .form-textarea {
  background-color: rgba(255, 255, 255, 0.07);
  border-color: rgba(255, 255, 255, 0.15);
  color: var(--color-bg);
}

.form-dark .form-input::placeholder,
.form-dark .form-textarea::placeholder {
  color: rgba(250, 247, 242, 0.4);
}

.form-dark .form-input:focus,
.form-dark .form-textarea:focus {
  border-color: rgba(255, 255, 255, 0.4);
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.08);
}

.form-dark .form-input.error,
.form-dark .form-textarea.error {
  border-color: var(--color-error);
}

.form-dark .form-submit {
  width: 100%;
  background-color: var(--color-bg);
  color: var(--color-primary);
  border: none;
  font-weight: var(--weight-medium);
  border-radius: 100px;
}

.form-dark .form-submit:hover {
  background-color: #fff;
}

.form-dark .form-success h3 {
  color: var(--color-bg);
}

.form-dark .form-success p {
  color: rgba(250, 247, 242, 0.7);
}

/* ---------- Footer ---------- */

.site-footer {
  background-color: var(--color-bg);
  color: var(--color-text);
  padding: var(--space-16) 0 var(--space-8);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--space-12);
  margin-bottom: var(--space-12);
  align-items: start;
}

.footer-grid > div:last-child {
  text-align: right;
}

.footer-brand .footer-logo {
  margin-bottom: var(--space-4);
}

.footer-brand .footer-logo svg {
  height: 28px;
}

.footer-tagline {
  color: var(--color-text-muted);
  font-size: var(--text-body);
  max-width: 300px;
}

.footer-heading {
  font-family: var(--font-heading);
  font-size: var(--text-small);
  font-weight: var(--weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-gold);
  margin-bottom: var(--space-4);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-link {
  color: var(--color-text-muted);
  font-size: var(--text-body);
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: var(--color-text);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-border);
  font-size: var(--text-small);
  color: var(--color-text-muted);
}

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--space-2);
    text-align: center;
  }
}

/* ---------- Pricing Cards ---------- */

.pricing-card {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-8);
  display: flex;
  flex-direction: column;
}

.pricing-card.featured {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
  position: relative;
}

.pricing-card.featured::before {
  content: 'Most Popular';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translate(-50%, -50%);
  background-color: var(--color-primary);
  color: var(--color-bg);
  font-size: var(--text-small);
  font-weight: var(--weight-medium);
  padding: var(--space-1) var(--space-4);
  border-radius: var(--radius-pill);
}

.pricing-name {
  font-family: var(--font-heading);
  font-size: var(--text-h3);
  font-weight: var(--weight-semibold);
  color: var(--color-primary);
  margin-bottom: var(--space-2);
}

.pricing-price {
  font-family: var(--font-heading);
  font-size: var(--text-h2);
  font-weight: var(--weight-bold);
  color: var(--color-text);
  margin-bottom: var(--space-6);
}

.pricing-price span {
  font-size: var(--text-body);
  font-weight: var(--weight-regular);
  color: var(--color-text-muted);
}

.pricing-features {
  flex: 1;
  margin-bottom: var(--space-8);
}

.pricing-feature {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-2) 0;
  font-size: var(--text-body);
  color: var(--color-text-muted);
}

.pricing-feature::before {
  content: '';
  display: inline-block;
  width: 20px;
  height: 20px;
  min-width: 20px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='%234A7C59'%3E%3Cpath fill-rule='evenodd' d='M16.707 5.293a1 1 0 010 1.414l-8 8a1 1 0 01-1.414 0l-4-4a1 1 0 011.414-1.414L8 12.586l7.293-7.293a1 1 0 011.414 0z' clip-rule='evenodd'/%3E%3C/svg%3E");
  margin-top: 2px;
}

/* ---------- Steps (How it Works) ---------- */

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
  counter-reset: step-counter;
}

.step {
  text-align: center;
  counter-increment: step-counter;
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background-color: var(--color-primary);
  color: var(--color-bg);
  font-family: var(--font-heading);
  font-size: var(--text-h3);
  font-weight: var(--weight-bold);
  margin-bottom: var(--space-6);
}

.step h3 {
  margin-bottom: var(--space-3);
}

.step p {
  color: var(--color-text-muted);
}

/* Connector lines between steps */
.steps-with-lines {
  position: relative;
}

.steps-with-lines::before,
.steps-with-lines::after {
  content: '';
  position: absolute;
  top: 28px;
  height: 2px;
  background-color: var(--color-border);
  z-index: 0;
}

.steps-with-lines::before {
  left: calc(100% / 6);
  right: calc(100% / 6 * 3 + var(--space-4));
}

.steps-with-lines::after {
  left: calc(100% / 6 * 3 + var(--space-4));
  right: calc(100% / 6);
}

@media (max-width: 768px) {
  .steps {
    grid-template-columns: 1fr;
    gap: var(--space-12);
  }

  .steps-with-lines::before,
  .steps-with-lines::after {
    display: none;
  }
}

/* ---------- Section Divider with Pattern ---------- */

.section-divider {
  height: 1px;
  background-color: var(--color-border);
  margin: 0;
  border: none;
}