/* ============================================
   Reemarc Agency Platform
   ============================================ */

:root {
  --color-bg: #0f1117;
  --color-bg-elevated: #1a1d27;
  --color-bg-card: #222633;
  --color-surface: #2a2f3d;
  --color-border: rgba(255, 255, 255, 0.08);
  --color-border-strong: rgba(255, 255, 255, 0.15);
  --color-text: #f0f2f7;
  --color-text-muted: #9ba3b8;
  --color-text-dim: #6b7289;
  --color-primary: #5b8def;
  --color-primary-light: #7aa4f5;
  --color-primary-dark: #3d6fd4;
  --color-accent: #34d399;
  --font-display: "Pretendard", "Apple SD Gothic Neo", system-ui, sans-serif;
  --font-body: "Pretendard", "Apple SD Gothic Neo", system-ui, sans-serif;
  --container-max: 1280px;
  --header-height: 72px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --shadow-lg: 0 24px 64px rgba(0, 0, 0, 0.4);
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  display: block;
}

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background: rgba(15, 17, 23, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}

.logo__img {
  display: block;
  height: 21px;
  width: auto;
}

.logo__mark {
  width: 36px;
  height: 36px;
  background: linear-gradient(
    135deg,
    var(--color-primary),
    var(--color-accent)
  );
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  font-weight: 800;
  color: #fff;
}

.logo__badge {
  font-size: 0.6875rem;
  font-weight: 500;
  color: var(--color-text-muted);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  padding: 0.2rem 0.5rem;
  border-radius: 999px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.header__nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.header__link {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  transition: color var(--transition);
}

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

.header__cta {
  font-size: 0.875rem;
  font-weight: 600;
  padding: 0.5rem 1.25rem;
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius-sm);
  transition: background var(--transition);
}

.header__cta:hover {
  background: var(--color-primary-light);
}

/* Hero */
.hero {
  padding: 4rem 0 3rem;
  text-align: center;
}

.hero__eyebrow {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-primary-light);
  background: rgba(91, 141, 239, 0.1);
  border: 1px solid rgba(91, 141, 239, 0.25);
  padding: 0.375rem 1rem;
  border-radius: 999px;
  margin-bottom: 1.5rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.hero__tagline-en {
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
  letter-spacing: -0.01em;
}

.hero__quote {
  font-size: 1.0625rem;
  color: var(--color-text-muted);
  max-width: 520px;
  margin: 0 auto 1.5rem;
  padding: 1.25rem 1.5rem;
  border-left: 3px solid var(--color-accent);
  background: var(--color-bg-elevated);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  text-align: left;
  line-height: 1.7;
  margin-top: 2rem;
}

.hero__quote strong {
  color: var(--color-text);
  font-weight: 700;
}

.hero__title {
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 1rem;
}

.hero__title span {
  background: linear-gradient(
    135deg,
    var(--color-primary-light),
    var(--color-accent)
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__desc {
  font-size: 1.0625rem;
  color: var(--color-text-muted);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.7;
  margin-top: 4rem;
  margin-bottom: 2rem;
}

/* Preview Section */
.preview {
  padding: 2rem 0 4rem;
}

.preview__panel {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.preview__toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.875rem 1.25rem;
  background: var(--color-bg-card);
  border-bottom: 1px solid var(--color-border);
  flex-wrap: wrap;
  gap: 0.75rem;
}

.preview__template-info {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.preview__template-name {
  font-size: 0.9375rem;
  font-weight: 600;
}

.preview__template-url {
  font-size: 0.75rem;
  color: var(--color-text-dim);
  font-family: "SF Mono", "Fira Code", monospace;
}

.preview__controls {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.device-btn {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.4375rem 0.875rem;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-text-muted);
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition);
  font-family: inherit;
}

.device-btn:hover {
  color: var(--color-text);
  background: var(--color-surface);
}

.device-btn.active {
  color: var(--color-text);
  background: var(--color-surface);
  border-color: var(--color-border-strong);
}

.device-btn svg {
  width: 16px;
  height: 16px;
  opacity: 0.7;
}

.device-btn.active svg {
  opacity: 1;
}

.preview__open-btn {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.4375rem 1rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: #fff;
  background: var(--color-primary);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--transition);
  font-family: inherit;
  margin-left: 0.5rem;
}

.preview__open-btn:hover {
  background: var(--color-primary-light);
}

.preview__open-btn svg {
  width: 14px;
  height: 14px;
}

.preview__viewport {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: 2rem;
  background: #12141a;
  min-height: 520px;
  overflow: auto;
}

.preview__frame-wrapper {
  background: #fff;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.5);
  transition:
    width var(--transition),
    height var(--transition);
  flex-shrink: 0;
}

.preview__frame-wrapper--desktop {
  width: 100%;
  max-width: 1200px;
  height: 680px;
}

.preview__frame-wrapper--tablet {
  width: 768px;
  height: 1024px;
  border-radius: 20px;
  border: 8px solid #2a2f3d;
}

.preview__frame-wrapper--mobile {
  width: 375px;
  height: 812px;
  border-radius: 32px;
  border: 10px solid #2a2f3d;
  position: relative;
}

.preview__frame-wrapper--mobile::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 120px;
  height: 24px;
  background: #2a2f3d;
  border-radius: 0 0 16px 16px;
  z-index: 2;
}

.preview__iframe {
  width: 100%;
  height: 100%;
  border: none;
  display: block;
}

/* Templates Grid */
.templates {
  padding: 2rem 0 6rem;
}

.section-header {
  margin-bottom: 2.5rem;
}

.section-header__title {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
}

.section-header__desc {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

.templates__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1.5rem;
}

.template-card {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  transition: all var(--transition);
}

.template-card:hover,
.template-card.active {
  border-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(91, 141, 239, 0.15);
}

.template-card.active {
  box-shadow:
    0 0 0 2px var(--color-primary),
    0 12px 40px rgba(91, 141, 239, 0.2);
}

.template-card__thumb {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--color-bg-card);
}

.template-card__thumb iframe {
  width: 200%;
  height: 200%;
  border: none;
  transform: scale(0.5);
  transform-origin: top left;
  pointer-events: none;
}

.template-card__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(15, 17, 23, 0.6) 0%,
    transparent 50%
  );
  display: flex;
  align-items: flex-end;
  padding: 1rem;
  opacity: 0;
  transition: opacity var(--transition);
}

.template-card:hover .template-card__overlay {
  opacity: 1;
}

.template-card__preview-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: #fff;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(8px);
  padding: 0.375rem 0.75rem;
  border-radius: 999px;
}

.template-card__body {
  padding: 1.25rem 1.5rem 1.5rem;
}

.template-card__tag {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-accent);
  background: rgba(52, 211, 153, 0.1);
  padding: 0.25rem 0.625rem;
  border-radius: 999px;
  margin-bottom: 0.625rem;
}

.template-card__title {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 0.375rem;
  letter-spacing: -0.01em;
}

.template-card__desc {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 1rem;
}

.template-card__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  border-top: 1px solid var(--color-border);
}

.template-card__features {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.template-card__feature {
  font-size: 0.6875rem;
  color: var(--color-text-dim);
  background: var(--color-bg-card);
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
}

.template-card__link {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-primary-light);
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  transition: color var(--transition);
}

.template-card__link:hover {
  color: var(--color-accent);
}

.template-card__link svg {
  width: 14px;
  height: 14px;
}

/* AI Search Section */
.ai-search {
  padding: 0 0 5rem;
}

.ai-search__card {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 3rem;
  box-shadow: var(--shadow-lg);
}

.ai-search__header {
  text-align: center;
  margin-bottom: 2.5rem;
}

.ai-search__label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  margin-bottom: 0.75rem;
}

.ai-search__title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 0.75rem;
}

.ai-search__subtitle {
  font-size: 1rem;
  color: var(--color-text-muted);
  max-width: 520px;
  margin: 0 auto;
  line-height: 1.7;
}

.ai-search__shift {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}

.shift-item {
  flex: 1;
  min-width: 240px;
  max-width: 360px;
  padding: 1.5rem;
  border-radius: var(--radius-md);
  text-align: center;
}

.shift-item--before {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
}

.shift-item--before p {
  font-size: 0.9375rem;
  color: var(--color-text-dim);
  text-decoration: line-through;
  text-decoration-color: rgba(107, 114, 137, 0.5);
}

.shift-item--after {
  background: linear-gradient(
    135deg,
    rgba(91, 141, 239, 0.15),
    rgba(52, 211, 153, 0.1)
  );
  border: 1px solid rgba(91, 141, 239, 0.3);
}

.shift-item--after p {
  font-size: 1rem;
  color: var(--color-text);
  line-height: 1.6;
}

.shift-item--after strong {
  color: var(--color-primary-light);
}

.shift-item__tag {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.75rem;
  color: var(--color-text-dim);
}

.shift-item--after .shift-item__tag {
  color: var(--color-accent);
}

.shift-item__arrow {
  color: var(--color-text-dim);
  flex-shrink: 0;
}

.ai-search__platforms {
  text-align: center;
  margin-bottom: 2.5rem;
}

.ai-search__platforms-label {
  font-size: 0.8125rem;
  color: var(--color-text-dim);
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.platform-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
}

.platform-pill {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: all var(--transition);
}

.platform-pill:hover {
  border-color: var(--color-primary);
  color: var(--color-text);
}

.platform-pill__icon {
  width: 24px;
  height: 24px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 800;
  color: #fff;
}

.platform-pill__icon--google {
  background: #4285f4;
}
.platform-pill__icon--chatgpt {
  background: #10a37f;
}
.platform-pill__icon--perplexity {
  background: #1a7f7f;
}
.platform-pill__icon--claude {
  background: #d97757;
}
.platform-pill__icon--gemini {
  background: #8e75b2;
}

.ai-search__layers {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.layer-item {
  padding: 1.25rem;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  text-align: center;
}

.layer-item__code {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--color-primary-light);
  background: rgba(91, 141, 239, 0.12);
  padding: 0.2rem 0.625rem;
  border-radius: 4px;
  margin-bottom: 0.5rem;
  letter-spacing: 0.05em;
}

.layer-item__name {
  display: block;
  font-size: 0.9375rem;
  font-weight: 700;
  margin-bottom: 0.375rem;
}

.layer-item__desc {
  font-size: 0.8125rem;
  color: var(--color-text-dim);
  line-height: 1.5;
}

/* Services Section */
.services {
  padding: 5rem 0;
  border-top: 1px solid var(--color-border);
}

.services__grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1rem;
}

.service-item {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.5rem 1.25rem;
  transition: all var(--transition);
}

.service-item:hover {
  border-color: var(--color-border-strong);
  transform: translateY(-2px);
}

.service-item--highlight {
  border-color: rgba(91, 141, 239, 0.4);
  background: linear-gradient(
    135deg,
    rgba(91, 141, 239, 0.08),
    rgba(52, 211, 153, 0.05)
  );
}

.service-item--highlight .service-item__title {
  color: var(--color-primary-light);
}

.service-item__icon {
  font-size: 1.5rem;
  margin-bottom: 0.75rem;
}

.service-item__title {
  font-size: 0.9375rem;
  font-weight: 700;
  margin-bottom: 0.375rem;
  letter-spacing: -0.01em;
}

.service-item__desc {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  line-height: 1.55;
}

/* Portfolio Section */
.portfolio {
  padding: 5rem 0;
  border-top: 1px solid var(--color-border);
}

.portfolio .preview__panel {
  margin-bottom: 2.5rem;
}

.portfolio .templates__grid {
  padding: 0;
}

/* CTA Section */
.cta-section {
  padding: 5rem 0;
  text-align: center;
  background: linear-gradient(
    135deg,
    rgba(91, 141, 239, 0.12),
    rgba(52, 211, 153, 0.08)
  );
  border-top: 1px solid var(--color-border);
}

.cta-section__title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}

.cta-section__desc {
  font-size: 1rem;
  color: var(--color-text-muted);
  margin-bottom: 2rem;
}

.cta-section__btn {
  display: inline-flex;
  align-items: center;
  padding: 0.875rem 2rem;
  font-size: 0.9375rem;
  font-weight: 600;
  color: #fff;
  background: var(--color-primary);
  border-radius: var(--radius-sm);
  transition: background var(--transition);
}

.cta-section__btn:hover {
  background: var(--color-primary-light);
}

/* Footer */
.footer {
  padding: 3rem 0;
  border-top: 1px solid var(--color-border);
  text-align: center;
}

.footer__logo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1.125rem;
  margin-bottom: 0.75rem;
}

.footer__tagline-en {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  margin-bottom: 0.5rem;
  font-weight: 500;
}

.footer__desc {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
}

.footer__contact {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.footer__contact a {
  font-size: 0.875rem;
  color: var(--color-text-dim);
  transition: color var(--transition);
}

.footer__contact a:hover {
  color: var(--color-primary-light);
}

.footer__copy {
  margin-top: 2rem;
  font-size: 0.75rem;
  color: var(--color-text-dim);
}

/* Responsive */
@media (max-width: 768px) {
  .header__nav {
    display: none;
  }

  .hero {
    padding: 2.5rem 0 2rem;
  }

  .hero__title span {
    display: block;
    margin-top: 0.2em;
  }

  .hero__desc {
    margin-top: 2rem;
    margin-bottom: 2rem;
  }

  .preview__toolbar {
    flex-direction: column;
    align-items: stretch;
  }

  .preview__controls {
    justify-content: center;
    flex-wrap: wrap;
  }

  .preview__viewport {
    padding: 1rem;
    min-height: 400px;
  }

  .preview__frame-wrapper--desktop {
    height: 480px;
  }

  .preview__frame-wrapper--tablet {
    width: 100%;
    max-width: 768px;
    height: 600px;
  }

  .preview__frame-wrapper--mobile {
    width: 100%;
    max-width: 375px;
    height: 640px;
  }

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

  .ai-search__card {
    padding: 1.5rem;
  }

  .ai-search__shift {
    flex-direction: column;
  }

  .shift-item__arrow {
    transform: rotate(90deg);
  }

  .ai-search__layers {
    grid-template-columns: 1fr;
  }

  .services__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero__quote {
    font-size: 0.9375rem;
    padding: 1rem 1.25rem;
  }
}

@media (max-width: 1100px) {
  .services__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 480px) {
  .services__grid {
    grid-template-columns: 1fr;
  }
}