/* ========================================
   INFOShell - Public Site Styles
   ======================================== */

/* TheJamsil 폰트 */
@font-face {
  font-family: 'TheJamsil';
  font-weight: 100;
  src: url('https://cdn.jsdelivr.net/gh/projectnoonnu/noonfonts_2302_01@1.0/TheJamsil1Thin.woff2') format('woff2');
}
@font-face {
  font-family: 'TheJamsil';
  font-weight: 300;
  src: url('https://cdn.jsdelivr.net/gh/projectnoonnu/noonfonts_2302_01@1.0/TheJamsil2Light.woff2') format('woff2');
}
@font-face {
  font-family: 'TheJamsil';
  font-weight: 400;
  src: url('https://cdn.jsdelivr.net/gh/projectnoonnu/noonfonts_2302_01@1.0/TheJamsil3Regular.woff2') format('woff2');
}
@font-face {
  font-family: 'TheJamsil';
  font-weight: 500;
  src: url('https://cdn.jsdelivr.net/gh/projectnoonnu/noonfonts_2302_01@1.0/TheJamsil4Medium.woff2') format('woff2');
}
@font-face {
  font-family: 'TheJamsil';
  font-weight: 700;
  src: url('https://cdn.jsdelivr.net/gh/projectnoonnu/noonfonts_2302_01@1.0/TheJamsil5Bold.woff2') format('woff2');
}
@font-face {
  font-family: 'TheJamsil';
  font-weight: 800;
  src: url('https://cdn.jsdelivr.net/gh/projectnoonnu/noonfonts_2302_01@1.0/TheJamsil6ExtraBold.woff2') format('woff2');
}

:root {
  --primary: #6366f1;
  --primary-dark: #4f46e5;
  --secondary: #22c55e;
  --bg-dark: #0f0f1a;
  --bg-card: #1a1a2e;
  --bg-card-hover: #252540;
  --text-primary: #ffffff;
  --text-secondary: #a0a0b0;
  --text-muted: #6b6b80;
  --border-color: #2d2d3f;
  --gradient: linear-gradient(135deg, #6366f1 0%, #a855f7 50%, #22c55e 100%);
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  --radius: 12px;
  --radius-lg: 20px;
  --transition: 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'TheJamsil', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ========================================
   Typography
   ======================================== */
.gradient-text {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section__title {
  font-size: 2.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 16px;
}

.section__subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  text-align: center;
  margin-bottom: 48px;
}

/* ========================================
   Buttons
   ======================================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border: none;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition);
}

.btn--primary {
  background: var(--primary);
  color: white;
}

.btn--primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(99, 102, 241, 0.3);
}

.btn--lg {
  padding: 16px 32px;
  font-size: 17px;
}

/* ========================================
   Header
   ======================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(15, 15, 26, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
}

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

.nav__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text-primary);
  font-size: 20px;
  font-weight: 700;
}

.nav__logo-img {
  width: 36px;
  height: 36px;
}

.nav__menu {
  display: flex;
  gap: 32px;
  list-style: none;
}

.nav__menu a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition);
}

.nav__menu a:hover {
  color: var(--text-primary);
}

/* ========================================
   Hero
   ======================================== */
.hero {
  padding: 160px 0 80px;
  background: radial-gradient(ellipse at top, rgba(99, 102, 241, 0.1) 0%, transparent 60%);
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero__title {
  font-size: 3.5rem;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 24px;
}

.hero__description {
  font-size: 1.2rem;
  color: var(--text-secondary);
  margin-bottom: 32px;
}

.hero__buttons {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 48px;
}

.hero__version {
  font-size: 13px;
  color: var(--text-muted);
}

.hero__stats {
  display: flex;
  gap: 48px;
  flex-wrap: wrap;
}

.hero__stat {
  display: flex;
  flex-direction: column;
  min-width: 80px;
}

.hero__stat-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary);
}

.hero__stat-label {
  font-size: 14px;
  color: var(--text-muted);
}

.hero__image {
  position: relative;
  display: flex;
  justify-content: center;
}

.hero__image img {
  width: 100%;
  max-width: 800px;
  height: auto;
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
  border: 1px solid var(--border-color);
}

/* ========================================
   Features
   ======================================== */
.features {
  padding: 100px 0;
}

.features__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: all var(--transition);
}

.feature-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--primary);
  transform: translateY(-4px);
}

.feature-card__icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(99, 102, 241, 0.1);
  border-radius: var(--radius);
  font-size: 24px;
  color: var(--primary);
  margin-bottom: 20px;
}

.feature-card__title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.feature-card__desc {
  color: var(--text-secondary);
  font-size: 15px;
}

/* ========================================
   Screenshots
   ======================================== */
.screenshots {
  padding: 100px 0;
  background: var(--bg-card);
}

.screenshots__slider {
  display: flex;
  gap: 24px;
  justify-content: center;
}

.screenshots__item {
  position: relative;
  width: 350px;
  opacity: 0.5;
  transform: scale(0.9);
  transition: all var(--transition);
  cursor: pointer;
}

.screenshots__item.active {
  opacity: 1;
  transform: scale(1);
}

.screenshots__item img {
  width: 100%;
  border-radius: var(--radius);
  border: 1px solid var(--border-color);
}

.screenshots__item span {
  display: block;
  text-align: center;
  margin-top: 12px;
  font-weight: 500;
  color: var(--text-secondary);
}

/* ========================================
   Download
   ======================================== */
.download {
  padding: 100px 0;
}

.download__card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px 40px;
  max-width: 600px;
  margin: 0 auto 32px;
}

.download__info {
  display: flex;
  align-items: center;
  gap: 20px;
}

.download__icon {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(99, 102, 241, 0.1);
  border-radius: var(--radius);
  font-size: 32px;
  color: var(--primary);
}

.download__details h3 {
  font-size: 1.25rem;
  margin-bottom: 4px;
}

.download__details p {
  color: var(--text-secondary);
  font-size: 14px;
}

.download__size {
  font-size: 13px;
  color: var(--text-muted);
}

.download__notes {
  display: flex;
  justify-content: center;
  gap: 32px;
  color: var(--text-muted);
  font-size: 14px;
}

.download__notes p {
  display: flex;
  align-items: center;
  gap: 8px;
}

.download__notes i {
  color: var(--secondary);
}

/* ========================================
   FAQ
   ======================================== */
.faq {
  padding: 100px 0;
  background: var(--bg-card);
}

.faq__list {
  max-width: 700px;
  margin: 0 auto;
}

.faq__item {
  border-bottom: 1px solid var(--border-color);
}

.faq__question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 0;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 16px;
  font-weight: 500;
  text-align: left;
  cursor: pointer;
  transition: color var(--transition);
}

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

.faq__question i {
  transition: transform var(--transition);
}

.faq__item.active .faq__question i {
  transform: rotate(180deg);
}

.faq__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition);
}

.faq__item.active .faq__answer {
  max-height: 200px;
}

.faq__answer p {
  padding-bottom: 24px;
  color: var(--text-secondary);
}

/* ========================================
   Footer
   ======================================== */
.footer {
  padding: 60px 0 40px;
  border-top: 1px solid var(--border-color);
}

.footer__content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 60px;
}

.footer__logo {
  width: 40px;
  height: 40px;
  margin-bottom: 16px;
}

.footer__brand p {
  color: var(--text-secondary);
  font-size: 14px;
  margin-bottom: 8px;
}

.footer__copyright {
  color: var(--text-muted);
  font-size: 13px;
  margin-top: 20px;
}

.footer__links h4 {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.footer__links ul {
  list-style: none;
}

.footer__links li {
  margin-bottom: 10px;
}

.footer__links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  transition: color var(--transition);
}

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

/* ========================================
   Responsive
   ======================================== */
@media (max-width: 992px) {
  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero__title {
    font-size: 2.5rem;
  }
  
  .hero__buttons {
    justify-content: center;
    flex-wrap: wrap;
  }
  
  .hero__stats {
    justify-content: center;
  }
  
  .hero__image {
    max-width: 500px;
    margin: 0 auto;
  }
  
  .features__grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer__content {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
}

/* ========================================
   Modal
   ======================================== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  width: 90%;
  max-width: 520px;
  max-height: 90vh;
  overflow: hidden;
  transform: scale(0.9);
  transition: transform var(--transition);
}

.modal-overlay.active .modal {
  transform: scale(1);
}

.modal__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-color);
}

.modal__header h3 {
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  gap: 10px;
}

.modal__header i {
  color: var(--primary);
}

.modal__close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 24px;
  cursor: pointer;
  transition: color var(--transition);
}

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

.modal__body {
  padding: 24px;
  max-height: 400px;
  overflow-y: auto;
}

.modal__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.modal__list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 16px;
  background: var(--bg-dark);
  border-radius: var(--radius);
  font-size: 14px;
  line-height: 1.5;
}

.modal__list i {
  color: var(--primary);
  margin-top: 2px;
  flex-shrink: 0;
}

.modal__footer {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  padding: 20px 24px;
  border-top: 1px solid var(--border-color);
}

/* ========================================
   Floating Button
   ======================================== */
.floating-btn {
  position: fixed;
  bottom: 30px;
  right: 30px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 16px 24px;
  background: var(--primary);
  color: white;
  border: none;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 8px 30px rgba(99, 102, 241, 0.4);
  transition: all var(--transition);
  z-index: 1000;
}

.floating-btn:hover {
  background: var(--primary-dark);
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(99, 102, 241, 0.5);
}

.floating-btn i {
  font-size: 18px;
}

/* ========================================
   Responsive
   ======================================== */
@media (max-width: 768px) {
  .nav__menu {
    display: none;
  }
  
  .section__title {
    font-size: 2rem;
  }
  
  .hero {
    padding: 120px 0 60px;
  }
  
  .hero__title {
    font-size: 2rem;
  }
  
  .features__grid {
    grid-template-columns: 1fr;
  }
  
  .screenshots__slider {
    flex-direction: column;
    align-items: center;
  }
  
  .screenshots__item {
    width: 100%;
    max-width: 350px;
    opacity: 1;
    transform: scale(1);
  }
  
  .download__card {
    flex-direction: column;
    text-align: center;
    gap: 24px;
  }
  
  .download__info {
    flex-direction: column;
  }
  
  .download__notes {
    flex-direction: column;
    gap: 12px;
    align-items: center;
  }
  
  .footer__content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .floating-btn span {
    display: none;
  }
  
  .floating-btn {
    padding: 16px;
    border-radius: 50%;
  }
  
  .modal {
    width: 95%;
    margin: 10px;
  }
  
  .modal__footer {
    flex-direction: column;
  }
  
  .modal__footer .btn {
    width: 100%;
    justify-content: center;
  }
}