/**
 * ADONG HOMEPAGE - COMPONENT STYLES
 * 9px 버튼, 25px 컨테이너, 황금비율 기반 컴포넌트 시스템
 */

/* ==========================================
 * BUTTON SYSTEM (9px border-radius)
 * ========================================== */

.btn {
  /* Base button styling */
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-tiny);

  /* Typography */
  font-family: 'Space Grotesk', 'Pretendard GOV', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  font-size: clamp(0.875rem, 1.5vw, 0.9375rem);
  font-weight: var(--font-weight-medium);
  line-height: var(--line-height-tight);
  text-decoration: none;
  text-align: center;
  white-space: nowrap;

  /* Dimensions & Spacing */
  padding: var(--space-small) var(--space-medium);
  min-height: 2.75rem; /* Touch target minimum */
  border-radius: var(--radius-button); /* 9px as specified */

  /* Interactive */
  border: none;
  cursor: pointer;
  user-select: none;

  /* Transitions */
  transition: all var(--transition-fast);

  /* States */
  &:focus-visible {
    outline: 2px solid var(--color-primary-light);
    outline-offset: 2px;
  }

  &:disabled {
    opacity: var(--opacity-disabled);
    cursor: not-allowed;
    pointer-events: none;
  }
}

/* Button Variants */
.btn-primary {
  background: var(--color-primary);
  color: var(--color-text-inverse);
  box-shadow: var(--shadow-sm);

  &:hover:not(:disabled) {
    background: var(--color-primary-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-primary);
  }

  &:active {
    transform: translateY(0);
    box-shadow: var(--shadow-xs);
  }
}

.btn-secondary {
  background: var(--color-surface-primary);
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
  box-shadow: var(--shadow-xs);

  &:hover:not(:disabled) {
    background: var(--color-primary);
    color: var(--color-text-inverse);
    transform: translateY(-1px);
    box-shadow: var(--shadow-primary);
  }

  &:active {
    transform: translateY(0);
    box-shadow: var(--shadow-xs);
  }
}

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

  &:hover:not(:disabled) {
    background: var(--color-bg-secondary);
    border-color: var(--color-border-light);
  }

  &:active {
    background: var(--color-bg-accent-light);
  }
}

/* Button Sizes */
.btn-small {
  padding: var(--space-tiny) var(--space-small);
  font-size: clamp(0.75rem, 2vw, 1.4375rem);
  min-height: 2.25rem;
}

.btn-large {
  padding: var(--space-medium) var(--space-large);
  font-size: clamp(0.875rem, 2vw, 1rem);
  font-weight: var(--font-weight-semibold);
  min-height: 3.25rem;
}

.btn-extra-large {
  padding: var(--space-large) var(--space-huge);
  font-size: clamp(1.125rem, 3.5vw, 3rem);
  font-weight: var(--font-weight-bold);
  min-height: 3.75rem;
  border-radius: var(--radius-lg); /* Slightly larger radius for bigger buttons */
}

/* Mobile specific button */
.btn-mobile {
  width: 100%;
  min-height: 3rem;
  font-weight: var(--font-weight-semibold);
}

/* ==========================================
 * CARD & CONTAINER SYSTEM (25px border-radius)
 * ========================================== */

.card {
  background: var(--color-surface-primary);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-container); /* 25px as specified */
  padding: var(--space-card);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);

  &:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-border-medium);
  }
}

.card-elevated {
  box-shadow: var(--shadow-lg);

  &:hover {
    box-shadow: var(--shadow-xl);
  }
}

.card-flat {
  border: none;
  box-shadow: none;
  background: var(--color-bg-secondary);

  &:hover {
    background: var(--color-bg-accent-light);
    transform: translateY(-1px);
    box-shadow: var(--shadow-xs);
  }
}

/* ==========================================
 * VIDEO & MEDIA CONTAINERS (25px border-radius, 황금비율)
 * ========================================== */

.video-container,
.video-placeholder {
  border-radius: var(--radius-container); /* 25px */
  overflow: hidden;
  position: relative;
  background: var(--color-bg-soft);
  aspect-ratio: 1.618 / 1; /* Golden ratio */
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-sm);

  /* Ensure video content fits properly */
  video,
  iframe {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: inherit;
    transition: transform var(--transition-normal);
  }

  &:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
  }

  &:hover video,
  &:hover iframe {
    transform: scale(1.02);
  }
}

.video-placeholder {
  border: 2px dashed var(--color-border-medium);
  cursor: pointer;
  transition: all var(--transition-normal);
  position: relative;


  &:hover {
    border-color: var(--color-primary-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
  }

  .video-content {
    text-align: center;
    color: var(--color-text-tertiary);
    transition: all var(--transition-fast);
    position: relative;
    z-index: 2;

    .play-icon {
      font-size: var(--font-size-2xl);
      margin-bottom: var(--space-small);
      color: var(--color-primary);
      animation: pulse-icon 2s ease-in-out infinite;
      transition: all var(--transition-fast);
    }

    .video-label {
      font-size: var(--font-size-sm);
      font-weight: var(--font-weight-medium);
      margin: 0;
      opacity: 0.8;
      transition: opacity var(--transition-fast);
    }
  }

  &:hover .play-icon {
    color: var(--color-primary);
    transform: scale(1.1);
    animation-duration: 1s;
  }

  &:hover .video-label {
    opacity: 1;
    color: var(--color-text-secondary);
  }
}


/* Play icon pulse animation */
@keyframes pulse-icon {
  0%, 100% {
    opacity: 0.7;
    transform: scale(1);
  }
  50% {
    opacity: 1;
    transform: scale(1.05);
  }
}

/* 15-second video loop styling */
.video-container.loop-video {
  position: relative;

  &::after {
    content: 'LOOP';
    position: absolute;
    top: var(--space-tiny);
    right: var(--space-tiny);
    background: rgba(0, 0, 0, 0.7);
    color: white;
    padding: var(--space-micro) var(--space-tiny);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    opacity: 0;
    transition: opacity var(--transition-fast);
  }

  &:hover::after {
    opacity: 1;
  }
}

/* ==========================================
 * CHARACTER & IMAGE PLACEHOLDERS
 * ========================================== */

/* Character Image - Simple styling */
.character-image {
  width: 100%;
  height: auto;
  max-width: 15rem;
  border-radius: var(--radius-lg);
  object-fit: contain;
  object-position: center;
}



/* ==========================================
 * FORM COMPONENTS
 * ========================================== */

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

.form-group-full {
  grid-column: 1 / -1;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-medium);
  margin-bottom: var(--space-medium);
}

.form-section-divider {
  margin: var(--space-large) 0 var(--space-medium);
  padding-top: var(--space-medium);
  border-top: 2px solid var(--color-border-light);
}

.form-section-title {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-secondary);
  margin: 0 0 var(--space-medium);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

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

.form-input,
.email-input,
select.form-input {
  width: 100%;
  padding: var(--space-small) var(--space-medium);
  font-size: var(--font-size-base);
  line-height: var(--line-height-tight);
  color: var(--color-text-primary);
  background: var(--color-surface-primary);
  border: 2px solid var(--color-border-light);
  border-radius: var(--radius-input); /* 9px to match buttons */
  transition: all var(--transition-fast);
  font-family: inherit;

  &::placeholder {
    color: var(--color-text-muted);
  }

  &:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
  }

  /* 필수 입력 필드가 비어있고 포커스를 잃었을 때 */
  &:required:invalid {
    border-color: var(--color-error);
  }

  /* 포커스 상태에서는 빨간 테두리 제거 */
  &:required:invalid:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
  }

  /* 값이 입력되지 않았을 때 (select의 경우) */
  &:required:invalid:not(:focus) {
    border-color: var(--color-error);
  }

  &:invalid:not(:placeholder-shown) {
    border-color: var(--color-error);
  }
}

select.form-input {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%238B5CF6' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-small) center;
  padding-right: calc(var(--space-medium) + var(--space-large));
}

.error-message {
  color: var(--color-error);
  font-size: var(--font-size-xs);
  margin-top: var(--space-micro);
  display: none;

  &.show {
    display: block;
  }
}

/* ==========================================
 * MODAL SYSTEM
 * ========================================== */

.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-surface-overlay);
  backdrop-filter: blur(4px);
  z-index: var(--z-modal-backdrop);
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--space-medium);

  &.show {
    display: flex;
  }
}

.modal-container {
  background: var(--color-surface-primary);
  border-radius: var(--radius-container); /* 25px */
  box-shadow: var(--shadow-2xl);
  max-width: 26.25rem; /* Golden ratio based */
  width: 100%;
  max-height: 95vh;
  overflow: hidden;
  animation: modal-enter 0.3s ease-out;
}

.modal-large {
  max-width: 50rem; /* Larger modal for forms */
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-medium) var(--space-large);
  border-bottom: 1px solid var(--color-border-light);
}

.modal-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin: 0;
}

.modal-close {
  background: none;
  border: none;
  font-size: var(--font-size-xl);
  color: var(--color-text-tertiary);
  cursor: pointer;
  padding: var(--space-tiny);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);

  &:hover {
    color: var(--color-text-primary);
    background: var(--color-bg-secondary);
  }
}

.modal-body {
  padding: var(--space-large);
}

.modal-description {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-medium);
  text-align: center;
}

@keyframes modal-enter {
  0% {
    opacity: 0;
    transform: scale(0.9) translateY(-20px);
  }
  100% {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

/* ==========================================
 * NAVIGATION COMPONENTS
 * ========================================== */

.nav-link {
  font-family: 'Space Grotesk', 'Pretendard GOV', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  color: var(--color-text-secondary);
  text-decoration: none;
  font-weight: var(--font-weight-medium);
  padding: var(--space-tiny) var(--space-small);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);

  &:hover {
    color: var(--color-primary);
    background: var(--color-bg-secondary);
  }

  &.active {
    color: var(--color-primary);
    background: var(--color-bg-accent-light);
  }
}

/* Language toggle */
.language-toggle {
  display: flex;
  background: var(--color-bg-secondary);
  border-radius: var(--radius-button);
  padding: var(--space-micro);
  gap: var(--space-micro);
  position: relative;
  overflow: hidden;
}

.language-toggle::before {
  content: '';
  position: absolute;
  top: var(--space-micro);
  bottom: var(--space-micro);
  left: var(--space-micro);
  width: calc(50% - var(--space-micro));
  background: var(--color-primary);
  border-radius: var(--radius-sm);
  transform: translateX(0);
  transition: transform 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
  z-index: 1;
}

.language-toggle.en-active::before {
  transform: translateX(100%);
}

.lang-btn {
  font-family: 'Space Grotesk', 'Pretendard GOV', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  background: transparent;
  border: none;
  padding: var(--space-tiny) var(--space-small);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-tertiary);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s ease;
  position: relative;
  z-index: 2;
  flex: 1;
  text-align: center;

  &.active {
    color: var(--color-text-inverse);
    transform: scale(1.05);
  }

  &:hover:not(.active) {
    color: var(--color-text-primary);
    transform: scale(1.02);
  }

  &:active {
    transform: scale(0.98);
  }
}


/* ==========================================
 * LOADING STATES
 * ========================================== */

.loading {
  position: relative;
  pointer-events: none;

  &::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid transparent;
    border-top: 2px solid currentColor;
    border-radius: 50%;
    animation: spin 1s linear infinite;
  }
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* ==========================================
 * UTILITY COMPONENTS
 * ========================================== */

.divider {
  height: 1px;
  background: var(--color-border-light);
  margin: var(--space-medium) 0;
}

.divider-vertical {
  width: 1px;
  background: var(--color-border-light);
  margin: 0 var(--space-medium);
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-micro) var(--space-tiny);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  border-radius: var(--radius-full);
  background: var(--color-bg-secondary);
  color: var(--color-text-secondary);
}

.badge-primary {
  background: var(--color-primary-light);
  color: var(--color-primary-darker);
}

.highlight {
  color: var(--color-primary);
  font-weight: var(--font-weight-bold);
}

/* ==========================================
 * FEATURE CONTENT UTILITY CLASSES
 * ========================================== */


/* ==========================================
 * USE CASE MODAL
 * ========================================== */

.usecase-modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(8px);
  z-index: var(--z-modal-backdrop);
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--space-medium);
  animation: usecase-modal-fade-in 0.3s ease-out;
  overflow: hidden;
}

.usecase-modal-overlay.show {
  display: flex;
}

.usecase-modal-container {
  background: var(--color-surface-primary);
  border-radius: var(--radius-container);
  box-shadow: var(--shadow-2xl);
  max-width: 50rem;
  width: 100%;
  overflow: hidden;
  animation: usecase-modal-enter 0.3s ease-out;
}

.usecase-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-medium) var(--space-large);
  border-bottom: 1px solid var(--color-border-light);
  background: var(--color-bg-secondary);
}

.usecase-modal-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin: 0;
}

.usecase-modal-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--color-text-tertiary);
  cursor: pointer;
  padding: var(--space-tiny);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  width: 2rem;
  height: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.usecase-modal-close:hover {
  color: var(--color-text-primary);
  background: var(--color-bg-secondary);
}

.usecase-modal-body {
  padding: 0;
}

.usecase-modal-video {
  background: var(--color-bg-soft);
  padding: var(--space-large);
  min-height: 25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.video-coming-soon {
  text-align: center;
  color: var(--color-text-secondary);
}

.coming-soon-icon {
  font-size: 3rem;
  margin-bottom: var(--space-medium);
  opacity: 0.7;
  animation: coming-soon-bounce 2s ease-in-out infinite;
}

.coming-soon-title {
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-small);
}

.coming-soon-description {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin: 0;
}

@keyframes usecase-modal-fade-in {
  0% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}

@keyframes usecase-modal-enter {
  0% {
    opacity: 0;
    transform: scale(0.9) translateY(-30px);
  }
  100% {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

@keyframes coming-soon-bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-10px);
  }
  60% {
    transform: translateY(-5px);
  }
}

/* Mobile responsive */
@media (max-width: 767px) {
  .usecase-modal-container {
    max-width: 95vw;
    margin: var(--space-small);
  }

  .usecase-modal-header {
    padding: var(--space-small) var(--space-medium);
  }

  .usecase-modal-video {
    min-height: 15.625rem;
    padding: var(--space-medium);
  }

  .coming-soon-icon {
    font-size: 2.5rem;
  }
}

/* ==========================================
 * USE CASES SECTION
 * ========================================== */

.usecases-section {
  background: var(--color-bg-primary);
  padding: 0;
  display: flex;
  align-items: center;
  overflow: hidden;
  position: relative;
}


/* Feature Video Modal */
.feature-video-modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.85);
  display: none;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  backdrop-filter: blur(0.5rem);
  opacity: 0;
  transition: opacity 0.4s ease;
}

.feature-video-modal-overlay.show {
  opacity: 1;
}

.feature-video-modal-container {
  position: relative;
  width: 90%;
  max-width: 84.375rem;
  max-height: 98vh;
  background: var(--color-surface-primary);
  border-radius: var(--radius-container);
  box-shadow: var(--shadow-xl);
  overflow: hidden;
  transform: scale(0.8) rotateX(10deg);
  transition: all 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
  opacity: 0;
}

.feature-video-modal-overlay.show .feature-video-modal-container {
  transform: scale(1) rotateX(0deg);
  opacity: 1;
}

.feature-video-modal-close {
  position: absolute;
  top: var(--space-medium);
  right: var(--space-medium);
  width: 2.5rem;
  height: 2.5rem;
  background: rgba(0, 0, 0, 0.7);
  border: none;
  border-radius: 50%;
  color: white;
  font-size: 1.5rem;
  cursor: pointer;
  z-index: 10001;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}

.feature-video-modal-close:hover {
  background: rgba(0, 0, 0, 0.9);
  transform: scale(1.1);
}

.feature-video-modal-content {
  display: flex;
  flex-direction: column;
  min-height: 40rem;
}

.feature-video-modal-video {
  flex: 1;
  background: var(--color-bg-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-huge);
  min-height: 32rem;
}

.feature-video-expanded {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-large);
  max-width: 37.5rem;
  width: 100%;
}

.play-icon-large {
  width: 7.5rem;
  height: 7.5rem;
  background: var(--color-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 3rem;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-lg);
  animation: pulsePlay 2s ease-in-out infinite;
}

.play-icon-large:hover {
  transform: scale(1.1);
  box-shadow: var(--shadow-xl);
}

@keyframes pulsePlay {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

.feature-video-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  text-align: center;
  margin: 0;
}

.feature-video-modal-text {
  padding: var(--space-huge);
  background: var(--color-surface-primary);
  border-top: 1px solid var(--color-border-light);
}

.feature-modal-title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin: 0 0 var(--space-medium) 0;
  line-height: 1.3;
}

.feature-modal-description {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin: 0;
}

/* Mobile responsive */
@media (max-width: 767px) {
  .feature-video-modal-container {
    width: 95%;
    max-height: 95vh;
  }

  .feature-video-modal-video {
    padding: var(--space-large);
    min-height: 250px;
  }

  .play-icon-large {
    width: 80px;
    height: 80px;
    font-size: 32px;
  }

  .feature-video-modal-text {
    padding: var(--space-large);
  }

  .feature-modal-title {
    font-size: var(--font-size-lg);
  }

  .feature-modal-description {
    font-size: var(--font-size-sm);
  }
}




/* feature1 섹션의 비디오 배경 및 모서리 처리 */

/* 모든 섹션의 설명 텍스트 - 영어일 때 한 줄로 표시 */
/* 1024px 이상에서만 줄바꿈 방지 적용 */
@media (min-width: 1024px) {
  .section .feature-description,
  .section p.feature-description,
  .section .section-description,
  .section p.section-description,
  .section .hero-description,
  .section p.hero-description {
    white-space: nowrap !important;
    max-width: none !important;
    overflow: visible !important;
  }
}

/* 1023px 이하에서는 줄바꿈 허용 */
@media (max-width: 1023.98px) {
  .section .feature-description,
  .section p.feature-description,
  .section .section-description,
  .section p.section-description,
  .section .hero-description,
  .section p.hero-description {
    white-space: normal !important;
    max-width: 100% !important;
    word-wrap: break-word !important;
    overflow-wrap: break-word !important;
  }
}

.section .usecase-description,
.section p.usecase-description {
  white-space: normal !important;
  max-width: 100% !important;
  word-wrap: break-word !important;
  overflow-wrap: break-word !important;
}

/* 모바일에서 usecase 디스크립션 안전 패딩 및 Feature 3 줄바꿈 */
@media (max-width: 767px) {
  .usecase-description {
    padding: 0 var(--space-small) !important;
    box-sizing: border-box !important;
    max-width: calc(100% - var(--space-medium)) !important;
  }

  /* Feature 3 긴 텍스트 줄바꿈 처리 - 768px 포함 */
  [data-anchor="feature3"] .feature-description {
    word-break: break-word !important;
    line-height: 1.6 !important;
    hyphens: auto !important;
  }
}

/* ==========================================
   Feature Video Canvas System
   - 16:9 aspect ratio container
   - Scales proportionally with section
   - No cropping with object-fit: contain
   ========================================== */

.feature-video-canvas {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0;
  order: 2;
}

.feature-video-container {
  position: relative;
  width: 100%;
  padding-top: 56.25%; /* 16:9 aspect ratio (9/16 = 0.5625) */
  background: #000000;
  border-radius: 16px;
  overflow: hidden;
}

.feature-video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: contain; /* Prevents cropping */
  border-radius: 16px;
}


/* Feature Video Hover Effect */
.feature-video-trigger {
  position: relative;
  cursor: pointer;
  transition: transform 0.3s ease;
  overflow: hidden;
}

/* 차오르는 호버 효과 제거됨 */
/* .feature-video-trigger::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 0%;
  background: #e5d4f1;
  transition: height 1s ease;
  z-index: 1;
}

.feature-video-trigger:hover::before {
  height: 100%;
} */

.feature-video-trigger:hover {
  transform: scale(1.02);
}

.feature-video-trigger .video-content {
  position: relative;
  z-index: 2;
}

.usecases-grid {
  display: grid !important;
  grid-template-columns: repeat(3, 1fr) !important;
  gap: 15px;
  margin: 0 auto;
  width: 100% !important;
  max-width: var(--container-xl);
  justify-items: center;
}

/* 호버 상태가 아닌 카드들은 평소대로 */

.usecase-card {
  background: var(--color-surface-primary);
  border-radius: var(--radius-container);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: all 0.3s ease;
  border: 1px solid var(--color-border-light);
  position: relative;
  height: auto;
  cursor: pointer;
}

.usecase-card:hover {
  transform: translateY(-0.3125rem);
  box-shadow: 0 0.625rem 1.875rem rgba(0, 0, 0, 0.15);
  border-color: var(--color-primary);
}




.usecase-content {
  padding: 0;
  transition: all 0.3s ease;
}



.usecase-icon {
  font-size: 35px;
  margin-bottom: 18px;
  display: block;
}

.usecase-title {
  font-size: clamp(19px, 22px, 38px);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin-bottom: 15px;
  line-height: 1.3;
}

.usecase-description {
  font-size: 16px;
  color: var(--color-text-secondary);
  line-height: 1.5;
  margin: 0;
  max-width: 100%;
  word-wrap: break-word;
  overflow-wrap: break-word;
  white-space: normal;
}


/* Mobile responsive for use cases */
@media (max-width: 1023.98px) {
  .usecases-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .usecase-description {
    font-size: clamp(13px, 2.2vw, 15px) !important;
    line-height: 1.4 !important;
    max-width: 100% !important;
    word-wrap: break-word !important;
    overflow-wrap: break-word !important;
    white-space: normal !important;
  }

  .usecase-title {
    font-size: clamp(15px, 2.8vw, 18px) !important;
    line-height: 1.3 !important;
    max-width: 100% !important;
    word-wrap: break-word !important;
    overflow-wrap: break-word !important;
  }

  .usecase-card {
    max-width: 100% !important;
    box-sizing: border-box !important;
    overflow: hidden !important;
    padding: var(--space-small) !important;
  }

  .usecase-card * {
    box-sizing: border-box !important;
  }

  .usecase-title,
  .usecase-description {
    max-width: none !important;
    width: 100% !important;
    margin: 0 !important;
    padding: 0 !important;
  }

  /* 다른 텍스트 요소들도 반응형으로 처리 - 1024px 아래에서 줄바꿈 허용 */
  .section-description,
  .feature-description {
    font-size: clamp(14px, 2.5vw, 16px) !important;
    line-height: 1.4 !important;
    max-width: 100% !important;
    word-wrap: break-word !important;
    overflow-wrap: break-word !important;
    white-space: normal !important;
  }

  .hero-description {
    font-size: clamp(15px, 2.8vw, 18px) !important;
    line-height: 1.4 !important;
    max-width: 100% !important;
    word-wrap: break-word !important;
    overflow-wrap: break-word !important;
    white-space: normal !important;
  }

  /* 섹션 제목들도 줄바꿈 허용 */
  .section-title,
  .feature-title,
  .usecase-title {
    white-space: normal !important;
    word-wrap: break-word !important;
    overflow-wrap: break-word !important;
  }
}

@media (max-width: 767px) {
  .usecases-grid {
    grid-template-columns: 1fr;
    gap: var(--space-medium);
  }

  .usecase-description {
    font-size: clamp(12px, 3.2vw, 14px) !important;
    line-height: 1.4 !important;
    max-width: 100% !important;
    word-wrap: break-word !important;
    overflow-wrap: break-word !important;
    white-space: normal !important;
  }

  .usecase-title {
    font-size: clamp(14px, 3.8vw, 17px) !important;
    line-height: 1.3 !important;
    max-width: none !important;
    width: 100% !important;
    word-wrap: break-word !important;
    overflow-wrap: break-word !important;
    margin: 0 !important;
    padding: 0 !important;
  }

  .usecase-card {
    max-width: 100% !important;
    box-sizing: border-box !important;
    overflow: hidden !important;
    padding: var(--space-small) !important;
    min-height: auto !important;
  }

  .usecase-card * {
    box-sizing: border-box !important;
  }

  .usecase-description {
    max-width: none !important;
    width: 100% !important;
    margin: 0 !important;
    padding: 0 !important;
  }

  /* 모바일에서 다른 텍스트 요소들도 반응형으로 처리 */
  .section-description,
  .feature-description {
    font-size: clamp(12px, 3.2vw, 15px) !important;
    line-height: 1.4 !important;
    max-width: 100% !important;
    word-wrap: break-word !important;
    overflow-wrap: break-word !important;
  }

  .hero-description {
    font-size: clamp(13px, 3.5vw, 16px) !important;
    line-height: 1.4 !important;
    max-width: 100% !important;
    word-wrap: break-word !important;
    overflow-wrap: break-word !important;
  }
}

@media (max-width: 480px) {
  .usecase-description {
    font-size: clamp(11px, 3.8vw, 13px) !important;
    line-height: 1.3 !important;
    max-width: none !important;
    width: 100% !important;
    margin: 0 !important;
    padding: 0 !important;
  }

  .usecase-title {
    font-size: clamp(13px, 4.2vw, 15px) !important;
    line-height: 1.2 !important;
    max-width: none !important;
    width: 100% !important;
    margin: 0 !important;
    padding: 0 !important;
  }

  .usecase-card {
    min-height: auto !important;
    padding: var(--space-tiny) !important;
  }

  .section-description,
  .feature-description {
    font-size: clamp(11px, 3.8vw, 13px) !important;
    line-height: 1.3 !important;
  }

  .hero-description {
    font-size: clamp(12px, 4vw, 14px) !important;
    line-height: 1.3 !important;
  }
}

/* ==========================================
 * FEATURE VIDEO STYLES
 * ========================================== */

.feature-video {
  width: 100%;
  height: auto;
  max-width: 100%;
  border-radius: var(--radius-container); /* 25px - 이전 프레임과 동일 */
  background-color: #000000;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  cursor: pointer;
  overflow: hidden;
  object-fit: contain;
}

/* Feature video hover effects removed per user request */

.feature-video::-webkit-media-controls {
  display: none !important;
}

.feature-video::-webkit-media-controls-panel {
  display: none !important;
}

.feature-video::-webkit-media-controls-play-button {
  display: none !important;
}

.feature-video::-webkit-media-controls-start-playback-button {
  display: none !important;
}

/* 호버 효과 제거됨 */

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

/* 비디오 fallback 스타일 */
.video-fallback {
  display: none; /* 비디오가 로드되지 않을 때만 표시 */
}

/* 반응형 비디오 */
@media (max-width: 767px) {
  .feature-video {
    border-radius: var(--radius-medium);
  }
}

/* ==========================================
 * INLINE EMAIL FORM SYSTEM
 * ========================================== */

.inline-email-form {
  width: 100%;
  max-width: 600px;
}

.inline-email-input-group {
  display: flex;
  gap: var(--space-small);
  align-items: stretch;
  width: 100%;
}

.inline-email-input {
  flex: 1;
  min-width: 0; /* Allow flexbox shrinking */

  /* Typography */
  font-family: 'Pretendard GOV', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  font-size: clamp(0.875rem, 1.5vw, 1rem);
  font-weight: var(--font-weight-medium);
  color: rgba(0, 0, 0, 0.9);

  /* Dimensions & Spacing */
  padding: var(--space-small) var(--space-medium);
  min-height: 2.75rem;
  border-radius: var(--radius-button); /* 9px */

  /* Style */
  background: rgba(255, 255, 255, 0.5);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 2px solid rgba(255, 255, 255, 0.3);
  box-shadow: var(--shadow-xs);

  /* Transitions */
  transition: all var(--transition-fast);

  /* Placeholder */
  &::placeholder {
    color: rgba(0, 0, 0, 0.5);
  }

  /* Focus State */
  &:focus {
    outline: none;
    background: rgba(255, 255, 255, 0.7);
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.1);
  }

  /* Invalid State */
  &:invalid:not(:placeholder-shown) {
    border-color: var(--color-error);
  }

  /* Hover State */
  &:hover:not(:focus) {
    background: rgba(255, 255, 255, 0.6);
    border-color: rgba(255, 255, 255, 0.4);
  }
}

.inline-email-note {
  margin-top: var(--space-small);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: var(--line-height-normal);
  text-align: left;
}

/* Centered Variant (for Download CTA section) */
.inline-email-form-centered {
  margin: 0 auto;
}

.inline-email-form-centered .inline-email-input-group {
  justify-content: center;
}

/* Mobile Variant (for Footer) */
.inline-email-form-mobile {
  max-width: 100%;
}

.inline-email-form-mobile .inline-email-input-group {
  flex-direction: column;
  gap: var(--space-small);
}

.inline-email-form-mobile .inline-email-input,
.inline-email-form-mobile .btn {
  width: 100%;
}

/* Button inside inline form */
.inline-email-input-group .btn {
  flex-shrink: 0;
  white-space: nowrap;
  min-width: fit-content;
}

/* Responsive */
@media (max-width: 767px) {
  .inline-email-input-group {
    flex-direction: column;
    gap: var(--space-small);
  }

  .inline-email-input,
  .inline-email-input-group .btn {
    width: 100%;
  }

  .inline-email-note {
    text-align: center;
    font-size: var(--font-size-xs);
  }
}

@media (min-width: 768px) and (max-width: 1023px) {
  .inline-email-form {
    max-width: 500px;
  }
}

@media (min-width: 1024px) {
  .inline-email-form {
    max-width: 600px;
  }

  .inline-email-input {
    font-size: 1rem;
  }
}

/* Error States */
.inline-email-input.invalid {
  border-color: var(--color-error, #DC2626);
  background: rgba(220, 38, 38, 0.05);
}

.inline-error-message {
  display: block;
  color: var(--color-error, #DC2626);
  font-size: var(--font-size-sm, 0.875rem);
  margin-top: var(--space-tiny, 4px);
  animation: fadeIn 0.3s ease;
  transition: opacity 0.3s ease;
}

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