/* ============================================
   YZ CLOUD Portfolio — CSS
   ============================================ */

/* --- CSS Variables --- */
:root {
  --bg: #0a0a0f;
  --bg-light: #0e0e16;
  --bg-card: #14141e;
  --text: #e4e4e7;
  --text-muted: #8888a0;
  --accent-1: #4f46e5;
  --accent-2: #7c3aed;
  --gradient: linear-gradient(135deg, var(--accent-1), var(--accent-2));
  --green: #22c55e;
  --yellow: #eab308;
  --red: #ef4444;
  --border: rgba(255,255,255,0.06);
  --border-hover: rgba(79,70,229,0.35);
  --radius: 16px;
  --radius-sm: 8px;
  --container: 1100px;
  --header-h: 72px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- Reset & Base --- */
*,*::before,*::after { margin:0; padding:0; box-sizing:border-box; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: 'Pretendard', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }
button { font-family: inherit; }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

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

/* --- Scroll Reveal --- */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1), transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}
.reveal--delay-1 { transition-delay: 0.15s; }
.reveal--delay-2 { transition-delay: 0.3s; }
.reveal--delay-3 { transition-delay: 0.45s; }
.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   HEADER
   ============================================ */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: var(--header-h);
  transition: background var(--transition), box-shadow var(--transition);
}
.header.scrolled {
  background: rgba(10,10,15,0.82);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 var(--border);
}
.header__inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Logo */
.header__logo {
  display: flex;
  align-items: baseline;
  gap: 2px;
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}
.logo-y {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-size: 1.5rem;
}
.logo-zet { color: var(--text); }
.logo-cloud {
  color: var(--text-muted);
  font-weight: 400;
  font-size: 0.7rem;
  margin-left: 6px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

/* Nav */
.header__nav { display: flex; gap: 32px; }
.nav__link {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color var(--transition);
  position: relative;
}
.nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 2px;
  background: var(--gradient);
  transition: width var(--transition);
}
.nav__link:hover,
.nav__link.active { color: var(--text); }
.nav__link:hover::after,
.nav__link.active::after { width: 100%; }

/* Hamburger */
.header__menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.header__menu-btn span {
  display: block;
  width: 24px; height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}
.header__menu-btn.active span:nth-child(1) { transform: rotate(45deg) translate(5px,5px); }
.header__menu-btn.active span:nth-child(2) { opacity: 0; }
.header__menu-btn.active span:nth-child(3) { transform: rotate(-45deg) translate(5px,-5px); }

/* ============================================
   HERO
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero__bg { position: absolute; inset: 0; z-index: 0; }
.hero__orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.3;
}
.hero__orb--1 {
  width: 600px; height: 600px;
  background: var(--accent-1);
  top: -200px; right: -100px;
  animation: orbFloat 12s ease-in-out infinite;
}
.hero__orb--2 {
  width: 500px; height: 500px;
  background: var(--accent-2);
  bottom: -150px; left: -100px;
  animation: orbFloat 15s ease-in-out infinite reverse;
}
.hero__orb--3 {
  width: 300px; height: 300px;
  background: #06b6d4;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  animation: orbFloat 10s ease-in-out infinite 2s;
}

.hero__grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}

@keyframes orbFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -40px) scale(1.05); }
  66% { transform: translate(-20px, 20px) scale(0.95); }
}

.hero__content {
  position: relative; z-index: 1;
  text-align: center; padding: 0 24px;
}
.hero__label {
  font-size: 0.85rem; font-weight: 600;
  letter-spacing: 0.2em; color: var(--accent-1);
  margin-bottom: 20px;
}
.hero__title {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 800; line-height: 1.15;
  letter-spacing: -0.03em; margin-bottom: 24px;
}
.hero__subtitle {
  font-size: clamp(1rem, 2vw, 1.15rem);
  color: var(--text-muted);
  max-width: 540px; margin: 0 auto 40px;
  line-height: 1.8;
}

.hero__actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 14px 32px; border-radius: 50px;
  font-size: 0.95rem; font-weight: 600;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
  cursor: pointer; border: none;
}
.btn--primary {
  background: var(--gradient); color: #fff;
  box-shadow: 0 4px 24px rgba(79,70,229,0.3);
}
.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(79,70,229,0.45);
}
.btn--outline {
  background: transparent; color: var(--text);
  border: 1px solid rgba(255,255,255,0.15);
}
.btn--outline:hover {
  background: rgba(255,255,255,0.05);
  border-color: rgba(255,255,255,0.25);
  transform: translateY(-2px);
}
.btn--full { width: 100%; }

.hero__scroll-indicator {
  position: absolute; bottom: 40px; left: 50%;
  transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  color: var(--text-muted); font-size: 0.65rem;
  letter-spacing: 0.2em; font-weight: 500;
}
.hero__scroll-line {
  width: 1px; height: 40px;
  background: linear-gradient(to bottom, var(--text-muted), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}
@keyframes scrollPulse {
  0%, 100% { opacity: 1; transform: scaleY(1); }
  50% { opacity: 0.3; transform: scaleY(0.6); }
}

/* ============================================
   SECTIONS (common)
   ============================================ */
.section { padding: 120px 0; position: relative; }
.section__header { text-align: center; margin-bottom: 56px; }
.section__label {
  display: inline-block;
  font-size: 0.72rem; font-weight: 600;
  letter-spacing: 0.2em; color: var(--accent-1);
  margin-bottom: 14px;
}
.section__title {
  font-size: clamp(1.75rem, 4vw, 2.6rem);
  font-weight: 800; letter-spacing: -0.02em; line-height: 1.3;
}
.section__subtitle {
  color: var(--text-muted);
  font-size: 1rem; line-height: 1.8;
  margin-top: 16px;
}

/* ============================================
   ABOUT / WHO WE ARE — Value Cards
   ============================================ */
.value-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.value-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 24px;
  text-align: center;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}
.value-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-hover);
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}
.value-card__icon {
  width: 44px; height: 44px;
  margin: 0 auto 16px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 12px;
  background: rgba(79,70,229,0.1);
  color: var(--accent-1);
}
.value-card__icon svg { width: 22px; height: 22px; }
.value-card__highlight {
  font-size: 2.2rem; font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.1; margin-bottom: 6px;
}
.value-card__title {
  font-size: 1.05rem; font-weight: 700;
  margin-bottom: 10px;
}
.value-card__desc {
  font-size: 0.88rem; color: var(--text-muted);
  line-height: 1.6;
}

/* ============================================
   PRICING
   ============================================ */
.pricing { background: var(--bg-light); }

.pricing__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 820px;
  margin: 0 auto;
}
.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px 32px;
  position: relative;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}
.pricing-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.35);
}
.pricing-card--popular {
  border-color: var(--accent-1);
  box-shadow: 0 0 40px rgba(79,70,229,0.12);
}
.pricing-card--popular:hover {
  border-color: var(--accent-2);
  box-shadow: 0 20px 60px rgba(79,70,229,0.2);
}
.pricing-card__badge {
  position: absolute;
  top: -13px; left: 50%;
  transform: translateX(-50%);
  background: var(--gradient);
  color: #fff;
  font-size: 0.72rem; font-weight: 700;
  padding: 5px 20px;
  border-radius: 50px;
  letter-spacing: 0.05em;
  white-space: nowrap;
}
.pricing-card__header { margin-bottom: 24px; }
.pricing-card__plan {
  font-size: 0.78rem; font-weight: 700;
  letter-spacing: 0.12em; color: var(--text-muted);
  margin-bottom: 4px;
}
.pricing-card__subtitle {
  font-size: 1.05rem; font-weight: 600; color: var(--text);
}
.pricing-card__price { margin-bottom: 28px; }
.pricing-card__original {
  font-size: 1rem; color: var(--text-muted);
  text-decoration: line-through;
  display: block; margin-bottom: 4px;
}
.pricing-card__current { display: flex; align-items: baseline; gap: 2px; }
.pricing-card__amount {
  font-size: 3.5rem; font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}
.pricing-card__unit {
  font-size: 1.3rem; font-weight: 700;
  color: var(--text);
}
.pricing-card__deal {
  display: inline-block;
  margin-top: 8px;
  font-size: 0.72rem; font-weight: 700;
  color: var(--green);
  background: rgba(34,197,94,0.1);
  padding: 3px 12px;
  border-radius: 50px;
  letter-spacing: 0.02em;
}
.pricing-card__features {
  margin-bottom: 28px;
  display: flex; flex-direction: column; gap: 12px;
}
.pricing-card__features li {
  display: flex; align-items: center; gap: 10px;
  font-size: 0.9rem; color: var(--text-muted);
}
.pricing-card__features svg {
  width: 18px; height: 18px;
  color: var(--accent-1);
  flex-shrink: 0;
}
.pricing-card__note {
  font-size: 0.72rem;
  color: var(--text-muted);
  text-align: center;
  margin-top: 12px;
  opacity: 0.7;
}

/* ============================================
   WHY 10만원
   ============================================ */
.why-cheap__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.why-cheap__title {
  font-size: clamp(1.6rem, 3.5vw, 2.2rem);
  font-weight: 800; line-height: 1.3;
  margin: 14px 0 20px; letter-spacing: -0.02em;
}
.why-cheap__desc {
  color: var(--text-muted);
  font-size: 1rem; line-height: 1.9;
}
.why-cheap__desc strong {
  color: var(--text);
  font-weight: 600;
}
.why-cheap__cards {
  display: flex; flex-direction: column; gap: 16px;
}
.why-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  display: flex; align-items: center; gap: 20px;
  transition: transform var(--transition), border-color var(--transition);
}
.why-card:hover {
  transform: translateX(8px);
  border-color: var(--border-hover);
}
.why-card__icon {
  width: 48px; height: 48px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 12px;
  background: rgba(79,70,229,0.1);
  color: var(--accent-1);
  flex-shrink: 0;
}
.why-card__icon svg { width: 22px; height: 22px; }
.why-card__label {
  font-size: 0.7rem; font-weight: 700;
  letter-spacing: 0.1em; color: var(--accent-1);
  margin-bottom: 2px; display: block;
}
.why-card__title {
  font-size: 1rem; font-weight: 600;
}

/* ============================================
   BENEFITS
   ============================================ */
.benefits { background: var(--bg-light); }

.benefits__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.benefit-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 28px;
  text-align: center;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}
.benefit-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-hover);
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}
.benefit-card__num {
  display: inline-block;
  font-size: 0.78rem; font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 16px;
  letter-spacing: 0.05em;
}
.benefit-card__title {
  font-size: 1.1rem; font-weight: 700;
  margin-bottom: 8px;
}
.benefit-card__desc {
  font-size: 0.88rem; color: var(--text-muted);
  line-height: 1.6;
}

/* ============================================
   PORTFOLIO
   ============================================ */
.portfolio__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.portfolio-card {
  position: relative; border-radius: var(--radius);
  overflow: hidden; aspect-ratio: 4 / 3;
  cursor: pointer; border: 1px solid var(--border);
  transition: transform var(--transition), box-shadow var(--transition);
}
.portfolio-card--wide { grid-column: span 2; aspect-ratio: 21 / 9; }
.portfolio-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}
.portfolio-card__bg {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
}
.portfolio-card__mockup {
  position: relative; z-index: 1;
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}
.portfolio-card:hover .portfolio-card__mockup {
  transform: scale(1.05) translateY(-8px);
}

.mockup-browser {
  width: 200px; border-radius: 8px;
  overflow: hidden; box-shadow: 0 8px 32px rgba(0,0,0,0.3);
  background: #1a1a2e;
}
.mockup-browser--lg { width: 320px; }
.mockup-browser__dots {
  display: flex; gap: 6px; padding: 8px 12px;
  background: rgba(0,0,0,0.3);
}
.mockup-browser__dots span {
  width: 8px; height: 8px; border-radius: 50%;
  background: rgba(255,255,255,0.15);
}
.mockup-browser__dots span:first-child { background: #ff5f57; }
.mockup-browser__dots span:nth-child(2) { background: #febc2e; }
.mockup-browser__dots span:nth-child(3) { background: #28c840; }
.mockup-browser__content { height: 120px; }
.mockup-browser--lg .mockup-browser__content { height: 160px; }

.mockup-phone {
  width: 100px; border-radius: 16px;
  overflow: hidden; box-shadow: 0 8px 32px rgba(0,0,0,0.3);
  border: 3px solid rgba(255,255,255,0.1);
}
.mockup-phone__screen { height: 180px; }

.portfolio-card__overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(10,10,15,0.97) 0%, rgba(10,10,15,0.6) 40%, transparent 70%);
  display: flex; flex-direction: column; justify-content: flex-end;
  padding: 28px;
  opacity: 1;
  transition: background var(--transition);
}
.portfolio-card:hover .portfolio-card__overlay {
  background: linear-gradient(to top, rgba(10,10,15,0.98) 0%, rgba(10,10,15,0.7) 50%, rgba(10,10,15,0.2) 100%);
}
.portfolio-card__category {
  font-size: 0.72rem; font-weight: 600;
  color: var(--accent-1); letter-spacing: 0.1em; margin-bottom: 6px;
}
.portfolio-card__title { font-size: 1.15rem; font-weight: 700; margin-bottom: 4px; }
.portfolio-card__desc { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 8px; }
.portfolio-card__badge {
  display: inline-block;
  font-size: 0.65rem; font-weight: 700;
  padding: 3px 10px; border-radius: 50px;
  background: rgba(79,70,229,0.15);
  color: var(--accent-1);
  letter-spacing: 0.04em;
}

/* Click indicator */
.portfolio-card__cta {
  position: absolute;
  top: 16px; right: 16px;
  display: flex; align-items: center; gap: 6px;
  padding: 7px 14px;
  background: rgba(79,70,229,0.2);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(79,70,229,0.25);
  border-radius: 50px;
  color: #fff;
  font-size: 0.7rem; font-weight: 600;
  letter-spacing: 0.02em;
  opacity: 0;
  transform: translateY(-4px);
  transition: opacity 0.35s ease, transform 0.35s ease, background 0.35s ease;
  z-index: 2;
  pointer-events: none;
}
.portfolio-card__cta svg {
  width: 14px; height: 14px;
}
.portfolio-card:hover .portfolio-card__cta {
  opacity: 1;
  transform: translateY(0);
}

/* Ripple ring on card */
.portfolio-card__ring {
  position: absolute;
  top: 50%; left: 50%;
  width: 60px; height: 60px;
  transform: translate(-50%, -50%);
  z-index: 2;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.4s ease;
}
.portfolio-card:not(:hover) .portfolio-card__ring {
  opacity: 1;
}
.portfolio-card__ring span {
  position: absolute; inset: 0;
  border: 2px solid rgba(79,70,229,0.4);
  border-radius: 50%;
  animation: clickRipple 2.5s ease-out infinite;
}
.portfolio-card__ring span:nth-child(2) {
  animation-delay: 0.8s;
}
@keyframes clickRipple {
  0% { transform: scale(0.5); opacity: 0.7; }
  100% { transform: scale(2.5); opacity: 0; }
}

/* Play icon center */
.portfolio-card__play {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 48px; height: 48px;
  background: rgba(79,70,229,0.25);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(79,70,229,0.3);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  z-index: 2;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.4s ease, transform 0.4s ease;
}
.portfolio-card:not(:hover) .portfolio-card__play {
  opacity: 0.8;
  animation: playPulse 2.5s ease-in-out infinite;
}
.portfolio-card:hover .portfolio-card__play {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1.1);
  background: rgba(79,70,229,0.4);
}
.portfolio-card__play svg {
  width: 20px; height: 20px;
  color: #fff;
  margin-left: 2px;
}
@keyframes playPulse {
  0%, 100% { transform: translate(-50%, -50%) scale(1); }
  50% { transform: translate(-50%, -50%) scale(1.08); }
}

/* ============================================
   PREVIEW MODAL (iframe)
   ============================================ */
.preview-modal {
  position: fixed; inset: 0;
  z-index: 2000;
  background: rgba(0,0,0,0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex; flex-direction: column;
  opacity: 0; visibility: hidden;
  transition: opacity 0.35s ease, visibility 0.35s ease;
}
.preview-modal.active {
  opacity: 1; visibility: visible;
}
.preview-modal__header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 20px;
  background: rgba(14,14,22,0.95);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.preview-modal__info {
  display: flex; align-items: center; gap: 12px;
}
.preview-modal__badge {
  font-size: 0.68rem; font-weight: 700;
  padding: 4px 12px; border-radius: 50px;
  background: var(--gradient); color: #fff;
  letter-spacing: 0.04em;
}
.preview-modal__title {
  font-size: 0.9rem; font-weight: 600; color: var(--text);
}
.preview-modal__actions {
  display: flex; gap: 8px;
}
.preview-modal__btn {
  width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-muted);
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
}
.preview-modal__btn:hover {
  background: rgba(255,255,255,0.1);
  color: var(--text);
}
.preview-modal__btn svg { width: 18px; height: 18px; }
.preview-modal__close:hover {
  background: rgba(239,68,68,0.15);
  color: var(--red);
  border-color: rgba(239,68,68,0.3);
}
.preview-modal__body {
  flex: 1; overflow: hidden;
  padding: 0;
}
.preview-modal__body iframe {
  width: 100%; height: 100%;
  background: #fff;
}

/* ============================================
   FAQ
   ============================================ */
.faq { background: var(--bg-light); }

.faq__list {
  max-width: 720px;
  margin: 0 auto;
  display: flex; flex-direction: column; gap: 12px;
}
.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: border-color var(--transition);
}
.faq-item.active { border-color: var(--border-hover); }
.faq-item__question {
  width: 100%;
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px 24px;
  background: none; border: none;
  color: var(--text); font-size: 0.95rem; font-weight: 600;
  cursor: pointer; text-align: left;
  transition: color var(--transition);
}
.faq-item__question:hover { color: #fff; }
.faq-item__question span { flex: 1; }
.faq-item__chevron {
  width: 20px; height: 20px;
  color: var(--text-muted);
  transition: transform var(--transition);
  flex-shrink: 0;
}
.faq-item.active .faq-item__chevron { transform: rotate(180deg); }
.faq-item__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  padding: 0 24px;
}
.faq-item.active .faq-item__answer {
  max-height: 200px;
  padding: 0 24px 20px;
}
.faq-item__answer p {
  font-size: 0.9rem; color: var(--text-muted);
  line-height: 1.75;
}

.faq__more-btn {
  display: block; margin: 32px auto 0;
  background: none; border: 1px solid var(--border);
  color: var(--text-muted); font-size: 0.88rem; font-weight: 600;
  padding: 12px 32px; border-radius: 50px;
  cursor: pointer;
  transition: border-color var(--transition), color var(--transition);
}
.faq__more-btn:hover {
  border-color: var(--border-hover);
  color: var(--text);
}

/* ============================================
   AS CENTER
   ============================================ */

/* Issue Monitor */
.issue-monitor {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 32px;
}
.issue-monitor__header {
  display: flex; align-items: center; gap: 10px;
  padding: 16px 24px;
  background: rgba(255,255,255,0.02);
  border-bottom: 1px solid var(--border);
  font-size: 0.82rem; font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.02em;
}
.issue-monitor__dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--green);
  animation: dotPulse 2s ease-in-out infinite;
}
@keyframes dotPulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(34,197,94,0.5); }
  50% { opacity: 0.8; box-shadow: 0 0 0 6px rgba(34,197,94,0); }
}

.issue-monitor__list { padding: 8px 0; }
.issue-row {
  display: grid;
  grid-template-columns: 40px 1fr auto auto;
  align-items: center; gap: 16px;
  padding: 14px 24px;
  font-size: 0.88rem;
  border-bottom: 1px solid rgba(255,255,255,0.03);
  opacity: 0;
  transform: translateX(-12px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}
.issue-row.visible {
  opacity: 1;
  transform: translateX(0);
}
.issue-row:last-child { border-bottom: none; }
.issue-row__id {
  font-weight: 700; color: var(--text-muted);
  font-size: 0.82rem;
}
.issue-row__title { font-weight: 500; }
.issue-row__date { font-size: 0.78rem; color: var(--text-muted); }
.issue-row__status {
  font-size: 0.68rem; font-weight: 700;
  padding: 4px 12px; border-radius: 50px;
  letter-spacing: 0.05em;
}
.issue-row__status--resolved {
  color: var(--green);
  background: rgba(34,197,94,0.1);
}
.issue-row__status--processing {
  color: var(--yellow);
  background: rgba(234,179,8,0.1);
}
.issue-row__status--waiting {
  color: var(--text-muted);
  background: rgba(255,255,255,0.05);
}

/* Support Cards */
.support-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.support-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 28px;
  text-align: center;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}
.support-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-hover);
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}
.support-card__icon {
  width: 48px; height: 48px;
  margin: 0 auto 16px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 12px;
  background: rgba(79,70,229,0.1);
  color: var(--accent-1);
}
.support-card__icon svg { width: 24px; height: 24px; }
.support-card__title {
  font-size: 1.1rem; font-weight: 700;
  margin-bottom: 10px;
}
.support-card__desc {
  font-size: 0.88rem; color: var(--text-muted);
  line-height: 1.65;
}

.as-center__cta {
  text-align: center;
  margin-top: 40px;
}
.as-center__cta p {
  color: var(--text-muted);
  font-size: 0.92rem;
  margin-bottom: 16px;
}

/* ============================================
   CONTACT
   ============================================ */
.contact__inner {
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
}
.contact__title {
  font-size: clamp(1.75rem, 4vw, 2.6rem);
  font-weight: 800; line-height: 1.3;
  margin: 16px 0 20px; letter-spacing: -0.02em;
}
.contact__desc {
  color: var(--text-muted);
  font-size: 1rem; line-height: 1.8;
  margin-bottom: 40px;
}
.contact__links {
  display: flex; gap: 16px;
  justify-content: center; flex-wrap: wrap;
}
.contact-item {
  display: flex; align-items: center; gap: 16px;
  padding: 20px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
  text-align: left;
}
.contact-item:hover {
  transform: translateY(-4px);
  border-color: var(--border-hover);
  box-shadow: 0 12px 40px rgba(0,0,0,0.3);
}
.contact-item__icon {
  width: 44px; height: 44px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 12px;
  background: rgba(79,70,229,0.1);
  color: var(--accent-1);
  flex-shrink: 0;
}
.contact-item__icon svg { width: 22px; height: 22px; }
.contact-item__label {
  display: block; font-size: 0.72rem;
  color: var(--text-muted); margin-bottom: 2px;
}
.contact-item__value { font-size: 0.9rem; font-weight: 600; }

/* ============================================
   FOOTER
   ============================================ */
.footer {
  border-top: 1px solid var(--border);
  padding: 48px 0 32px;
}
.footer__inner {
  display: flex; justify-content: space-between;
  align-items: center; margin-bottom: 32px;
}
.footer__desc {
  color: var(--text-muted);
  font-size: 0.85rem; margin-top: 8px;
}
.footer__links { display: flex; gap: 24px; }
.footer__links a {
  color: var(--text-muted); font-size: 0.85rem;
  transition: color var(--transition);
}
.footer__links a:hover { color: var(--text); }
.footer__bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px; text-align: center;
}
.footer__bottom p { color: var(--text-muted); font-size: 0.78rem; }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .value-grid { grid-template-columns: repeat(2, 1fr); }
  .pricing__grid { max-width: 100%; }
}

@media (max-width: 768px) {
  :root { --header-h: 64px; }

  /* Mobile Nav */
  .header__menu-btn { display: flex; }
  .header__nav {
    position: fixed; top: 0; right: 0;
    width: 280px; height: 100vh;
    background: var(--bg-light);
    flex-direction: column;
    padding: 100px 40px 40px; gap: 24px;
    transform: translateX(100%);
    transition: transform var(--transition);
    border-left: 1px solid var(--border);
  }
  .header__nav.active { transform: translateX(0); }
  .nav__link { font-size: 1.05rem; }

  /* Value */
  .value-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .value-card { padding: 28px 20px; }
  .value-card__highlight { font-size: 1.8rem; }

  /* Pricing */
  .pricing__grid { grid-template-columns: 1fr; }

  /* Why */
  .why-cheap__inner { grid-template-columns: 1fr; gap: 36px; }

  /* Benefits */
  .benefits__grid { grid-template-columns: 1fr; }

  /* Portfolio */
  .portfolio__grid { grid-template-columns: 1fr; }
  .portfolio-card--wide { grid-column: span 1; }
  .portfolio-card { aspect-ratio: 16 / 10; }

  /* Issue Monitor */
  .issue-row { grid-template-columns: 32px 1fr auto; gap: 10px; padding: 12px 16px; }
  .issue-row__date { display: none; }

  /* Support */
  .support-grid { grid-template-columns: 1fr; }

  /* Contact */
  .contact__links { flex-direction: column; align-items: center; }
  .contact-item { width: 100%; max-width: 360px; }

  /* Footer */
  .footer__inner { flex-direction: column; gap: 24px; text-align: center; }
  .footer__links { flex-wrap: wrap; justify-content: center; }

  .section { padding: 80px 0; }
  .section__header { margin-bottom: 40px; }
  .hero__scroll-indicator { display: none; }
}

@media (max-width: 480px) {
  .hero__title { font-size: 2rem; }
  .hero__actions { flex-direction: column; align-items: center; }
  .hero__actions .btn { width: 100%; max-width: 280px; }
  .value-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
  .value-card { padding: 24px 16px; }
  .value-card__highlight { font-size: 1.5rem; }
  .value-card__title { font-size: 0.92rem; }
  .value-card__desc { font-size: 0.8rem; }
  .pricing-card { padding: 32px 24px; }
  .pricing-card__amount { font-size: 2.8rem; }
  .faq-item__question { padding: 16px 20px; font-size: 0.9rem; }
  .issue-row { font-size: 0.82rem; }
}