/* ==============================================
   BASE & RESET
   ============================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --color-bg:          #f5f7fc;
  --color-bg-2:        #eef1f8;
  --color-bg-card:     #ffffff;
  --color-bg-card-alt: #f0f4fb;
  --color-border:      rgba(59,130,246,0.12);
  --color-border-glow: rgba(59,130,246,0.3);

  --color-primary:     #2563eb;
  --color-primary-dk:  #1d4ed8;
  --color-primary-lt:  #60a5fa;
  --color-primary-glow: rgba(59,130,246,0.10);

  --color-yellow:      #f59e0b;
  --color-red:         #ef4444;
  --color-youtube:     #ff0000;

  --color-text:        #0f172a;
  --color-text-muted:  #475569;
  --color-text-dim:    #94a3b8;

  --font-main: 'Noto Sans KR', sans-serif;

  --radius-sm:   6px;
  --radius-md:   12px;
  --radius-lg:   20px;
  --radius-xl:   28px;

  --shadow-card: 0 4px 24px rgba(59,130,246,0.10);
  --shadow-glow: 0 0 40px rgba(59,130,246,0.12);
  --transition:  all 0.3s cubic-bezier(0.4,0,0.2,1);
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-main);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

.container { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }

/* ==============================================
   BUTTONS
   ============================================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-main);
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
  text-decoration: none;
}

.btn-sm   { padding: 8px 18px;  font-size: 0.85rem; border-radius: var(--radius-sm); }
.btn-lg   { padding: 14px 28px; font-size: 1rem; }
.btn-xl   { padding: 16px 36px; font-size: 1.05rem; }
.btn-full { width: 100%; justify-content: center; padding: 16px; font-size: 1rem; }

.btn-primary {
  background: linear-gradient(180deg, #60a5fa 0%, #2563eb 50%, #1d4ed8 100%);
  color: #ffffff;
  box-shadow: 0 4px 0 #1e40af, 0 6px 16px rgba(37,99,235,0.35), inset 0 1px 0 rgba(255,255,255,0.3);
  text-shadow: 0 1px 0 rgba(0,0,0,0.15);
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}
.btn-primary:hover {
  background: linear-gradient(180deg, #93c5fd 0%, #3b82f6 50%, #2563eb 100%);
  transform: translateY(-3px);
  box-shadow: 0 6px 0 #1e40af, 0 10px 28px rgba(37,99,235,0.45), inset 0 1px 0 rgba(255,255,255,0.35);
}
.btn-primary:active {
  transform: translateY(2px);
  box-shadow: 0 1px 0 #1e40af, 0 2px 8px rgba(37,99,235,0.25), inset 0 1px 0 rgba(255,255,255,0.2);
}

.btn-youtube {
  background: var(--color-youtube);
  color: #fff;
}
.btn-youtube:hover {
  background: #cc0000;
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(255,0,0,0.3);
}

/* ==============================================
   SECTION LABELS / SHARED
   ============================================== */
.section-label {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-primary);
  background: var(--color-primary-glow);
  border: 1px solid var(--color-border-glow);
  padding: 4px 14px;
  border-radius: 100px;
  margin-bottom: 18px;
}
.section-label.light {
  color: #93c5fd;
  background: rgba(96,165,250,0.12);
  border-color: rgba(96,165,250,0.25);
}

.section-title {
  font-size: clamp(1.7rem, 3vw, 2.6rem);
  font-weight: 900;
  line-height: 1.35;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}
.section-title span { color: var(--color-primary); }
.section-title em {
  font-style: normal;
  color: var(--color-primary);
  position: relative;
  display: inline-block;
}
.section-title em::after {
  content: '';
  position: absolute;
  left: 0; bottom: -3px;
  width: 100%; height: 2px;
  background: linear-gradient(90deg, var(--color-primary), transparent);
  border-radius: 2px;
}
.title-line-muted {
  font-size: 0.58em;
  font-weight: 500;
  color: var(--color-text-muted);
  letter-spacing: 0.02em;
  display: inline-block;
  margin-bottom: 4px;
}
.title-line-sub {
  font-size: 0.5em;
  font-weight: 500;
  color: var(--color-text-muted);
  letter-spacing: 0.01em;
  display: inline-block;
  margin-top: 6px;
}

.section-desc {
  font-size: 1rem;
  color: var(--color-text-muted);
  line-height: 1.8;
  max-width: 600px;
}

/* ==============================================
   HERO SECTION
   ============================================== */
.hero-section {
  position: relative;
  padding: 28px 0 100px;
  overflow: hidden;
}

.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(59,130,246,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59,130,246,0.05) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}
.hero-bg-grid::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 70% 55% at 50% 0%, rgba(59,130,246,0.08) 0%, transparent 70%);
}

.hero-inner { text-align: center; position: relative; z-index: 1; }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-primary);
  background: var(--color-primary-glow);
  border: 1px solid var(--color-border-glow);
  padding: 6px 18px;
  border-radius: 100px;
  margin-bottom: 28px;
  letter-spacing: 0.03em;
  position: relative;
  overflow: hidden;
}
.hero-badge::after {
  content: '';
  position: absolute;
  top: 0; left: -100%;
  width: 60%; height: 100%;
  background: linear-gradient(90deg, transparent 0%, rgba(59,130,246,0.35) 50%, transparent 100%);
  animation: badge-shimmer 2.4s ease-in-out infinite;
}
@keyframes badge-shimmer {
  0%   { left: -100%; }
  60%  { left: 150%; }
  100% { left: 150%; }
}

.hero-title {
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 40px;
}
.hero-title em { font-style: normal; color: var(--color-primary); }

.hero-sub {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  line-height: 1.8;
  margin-bottom: 48px;
}

/* Video */
.video-wrapper { max-width: 760px; margin: 0 auto 40px; }

.video-frame {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-card), var(--shadow-glow);
}
.video-frame iframe { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }

.video-caption {
  margin-top: 12px;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-weight: 500;
}
.video-caption i { color: var(--color-youtube); }

/* unmute overlay */
.unmute-overlay {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding-bottom: 24px;
  cursor: pointer;
  z-index: 10;
  pointer-events: none;
}
.unmute-inner {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(0,0,0,0.72);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 999px;
  padding: 10px 22px;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  pointer-events: auto;
  transition: background 0.2s, transform 0.2s;
  animation: unmute-pulse 2.5s ease-in-out infinite;
}
.unmute-inner:hover { background: rgba(0,0,0,0.88); transform: scale(1.04); }
@keyframes unmute-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(255,255,255,0.0); }
  50%       { box-shadow: 0 0 0 6px rgba(255,255,255,0.12); }
}
.unmute-icon-wrap { font-size: 1.1rem; color: #fff; flex-shrink: 0; }
.unmute-text { font-size: 0.78rem; color: rgba(255,255,255,0.65); font-weight: 400; white-space: nowrap; }
.unmute-sub  { font-size: 0.82rem; color: #fff; font-weight: 600; white-space: nowrap; }
.unmute-overlay.hidden { opacity: 0; pointer-events: none; transition: opacity 0.5s ease; }

@media (max-width: 480px) {
  .unmute-inner { padding: 8px 16px; gap: 7px; }
  .unmute-text  { display: none; }
  .unmute-sub   { font-size: 0.8rem; }
}

.hero-cta-main {
  padding: 16px 36px;
  font-size: 0.95rem;
  letter-spacing: 0.01em;
  box-shadow: 0 6px 32px rgba(37,99,235,0.3);
  white-space: normal;
  text-align: center;
  line-height: 1.5;
}
.hero-cta-main:hover { box-shadow: 0 10px 40px rgba(37,99,235,0.45); }

.hero-cta-group {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ==============================================
   PROCESS SECTION
   ============================================== */
.process-section {
  padding: 100px 0;
  background: var(--color-bg-2);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}
.process-section .section-desc { margin-bottom: 56px; }

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 40px;
}

.step-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  position: relative;
  transition: var(--transition);
}
.step-card:hover {
  transform: translateY(-6px);
  border-color: rgba(37,99,235,0.2);
  box-shadow: var(--shadow-card);
}
.step-card--highlight {
  background: linear-gradient(160deg, #eff6ff 0%, #dbeafe 100%);
  border-color: rgba(37,99,235,0.25);
  box-shadow: 0 0 32px rgba(37,99,235,0.10);
}

.step-badge {
  position: absolute;
  top: -12px; left: 28px;
  background: var(--color-primary);
  color: #ffffff;
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  padding: 4px 12px;
  border-radius: 100px;
}

.step-number {
  font-size: 3rem;
  font-weight: 900;
  color: rgba(37,99,235,0.12);
  line-height: 1;
  margin-bottom: 16px;
  letter-spacing: -0.03em;
}
.step-card--highlight .step-number { color: rgba(37,99,235,0.22); }

.step-icon-wrap {
  width: 48px; height: 48px;
  background: var(--color-primary-glow);
  border: 1px solid var(--color-border-glow);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  font-size: 1.2rem;
  margin-bottom: 18px;
}

.step-title { font-size: 1.1rem; font-weight: 700; margin-bottom: 14px; line-height: 1.45; }
.step-title-sub {
  display: block;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--color-primary);
  letter-spacing: 0.01em;
  margin-top: 4px;
}
.step-desc { font-size: 0.9rem; color: var(--color-text-muted); line-height: 1.8; margin-bottom: 20px; }
.step-desc strong { color: var(--color-text); }
.step-list { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.step-list li { display: flex; align-items: flex-start; gap: 10px; font-size: 0.85rem; color: var(--color-text-muted); }
.step-list li i { color: var(--color-primary); flex-shrink: 0; margin-top: 2px; font-size: 0.8rem; }

/* Free Notice */
.free-notice {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  background: rgba(224,82,82,0.06);
  border: 1px solid rgba(224,82,82,0.2);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  margin-top: 32px;
}
.free-notice-icon {
  width: 40px; height: 40px;
  background: rgba(224,82,82,0.1);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  color: #e05252; font-size: 1.1rem; flex-shrink: 0;
}
.free-notice-text { font-size: 0.88rem; color: var(--color-text-muted); line-height: 1.7; }
.free-notice-text strong { color: var(--color-text); font-size: 0.95rem; }

/* Journal Image */
.journal-img-section {
  margin: 40px 0 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  background: var(--color-bg-card);
  box-shadow: var(--shadow-card);
}
.journal-img-label {
  display: flex; align-items: center; gap: 8px;
  padding: 13px 20px;
  font-size: 0.83rem; font-weight: 600;
  color: var(--color-text-muted);
  background: var(--color-bg-card-alt);
  border-bottom: 1px solid var(--color-border);
}
.journal-img-label i { color: var(--color-primary); }
.journal-img-wrap { position: relative; overflow: hidden; }
.journal-img-wrap img { width: 100%; height: auto; display: block; }

/* ==============================================
   INDICATOR CODE LOCK
   ============================================== */
.ilock-wrap {
  position: relative;
  width: 100%;
  -webkit-transform: translateZ(0);
          transform: translateZ(0);
  -webkit-mask-image: -webkit-radial-gradient(white, black);
  background: #e8f0fe;
  overflow: hidden;
}
.ilock-img { width: 100%; height: auto; display: block; vertical-align: top; }
.ilock-bg  { display: none; }
.ilock-overlay {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  z-index: 3;
}
.ilock-card {
  display: flex; flex-direction: column; align-items: center; text-align: center;
  gap: 12px; padding: 28px 32px;
  background: rgba(255,255,255,0.92);
  border: 1px solid rgba(37,99,235,0.3);
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 48px rgba(37,99,235,0.18);
}
.ilock-icon  { font-size: 2.4rem; color: var(--color-primary); filter: drop-shadow(0 0 14px rgba(37,99,235,0.5)); }
.ilock-title { font-size: 1.15rem; font-weight: 800; color: #0f172a; margin: 0; letter-spacing: -0.01em; }
.ilock-desc  { font-size: 0.84rem; color: rgba(15,23,42,0.6); line-height: 1.65; margin: 0; }
.ilock-btn   { padding: 10px 26px; font-size: 0.9rem; margin-top: 4px; }

@media (max-width: 480px) {
  .ilock-card  { padding: 20px 16px; gap: 10px; }
  .ilock-icon  { font-size: 2rem; }
  .ilock-title { font-size: 1rem; }
}

/* ==============================================
   REVIEWS SECTION
   ============================================== */
.reviews-section { padding: 100px 0; }
.reviews-section .section-desc { margin-bottom: 52px; }

.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.review-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  display: flex; flex-direction: column; gap: 18px;
  transition: var(--transition);
}
.review-card:hover { transform: translateY(-4px); border-color: rgba(37,99,235,0.2); box-shadow: var(--shadow-card); }
.review-card--featured { background: linear-gradient(160deg, #eff6ff 0%, #dbeafe 100%); border-color: rgba(37,99,235,0.22); }
.review-text { font-size: 0.9rem; color: var(--color-text-muted); line-height: 1.8; font-style: normal; flex: 1; }
.review-text strong { color: var(--color-text); }
.review-author { display: flex; align-items: center; gap: 12px; padding-top: 16px; border-top: 1px solid var(--color-border); }
.review-avatar {
  width: 40px; height: 40px;
  background: var(--color-primary-glow);
  border: 1px solid var(--color-border-glow);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: var(--color-primary); font-weight: 700; font-size: 0.95rem; flex-shrink: 0;
}
.review-name { font-weight: 600; font-size: 0.9rem; }
.review-meta { font-size: 0.78rem; color: var(--color-text-dim); margin-top: 2px; }

/* ==============================================
   CTA SECTION
   ============================================== */
.cta-section {
  padding: 100px 0;
  background: #0f172a;
  border-top: none;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 20% 50%, rgba(59,130,246,0.18) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 80% 30%, rgba(99,102,241,0.14) 0%, transparent 55%);
  pointer-events: none;
}
.cta-inner { max-width: 680px; margin: 0 auto; text-align: center; position: relative; z-index: 1; }
.cta-title { font-size: clamp(1.8rem, 4vw, 2.8rem); font-weight: 900; line-height: 1.25; margin-bottom: 28px; letter-spacing: -0.02em; }
.cta-title { font-size: clamp(1.8rem, 4vw, 2.8rem); font-weight: 900; line-height: 1.25; margin-bottom: 28px; letter-spacing: -0.02em; color: #f8fafc; }
.cta-title em { font-style: normal; color: #60a5fa; }
.cta-reason {
  font-size: 1rem; color: rgba(203,213,225,0.85); line-height: 1.9; text-align: left;
  background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.10);
  border-radius: var(--radius-lg); padding: 28px 32px; margin-bottom: 28px;
  backdrop-filter: blur(8px);
}
.cta-reason strong { color: #f1f5f9; }
.cta-divider { width: 48px; height: 2px; background: linear-gradient(90deg, #60a5fa, #818cf8); border-radius: 2px; margin: 0 auto 24px; opacity: 0.7; }
.cta-ask { font-size: 1.05rem; color: rgba(203,213,225,0.8); line-height: 1.8; margin-bottom: 36px; }
.cta-ask strong { color: #f1f5f9; }
.cta-buttons { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-bottom: 60px; }

/* ==============================================
   FOOTER
   ============================================== */
.site-footer { border-top: 1px solid var(--color-border); padding: 48px 0; }
.footer-inner { text-align: center; display: flex; flex-direction: column; gap: 14px; }
.footer-logo { font-weight: 700; font-size: 1rem; color: var(--color-text-muted); display: flex; align-items: center; justify-content: center; gap: 8px; }
.footer-logo i { color: var(--color-youtube); }
.footer-notice { font-size: 0.8rem; color: var(--color-text-dim); line-height: 1.8; }
.footer-copy   { font-size: 0.78rem; color: var(--color-text-dim); }

/* ==============================================
   FLOATING CTA
   ============================================== */
.floating-cta {
  position: fixed;
  bottom: 24px; left: 50%;
  transform: translateX(-50%);
  z-index: 999;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s ease, transform 0.3s ease;
  transform: translateX(-50%) translateY(16px);
}
.floating-cta.show { opacity: 1; pointer-events: auto; transform: translateX(-50%) translateY(0); }
.floating-cta.hide-near-form { opacity: 0 !important; pointer-events: none !important; }
.floating-cta-btn {
  display: flex; align-items: center; gap: 10px;
  padding: 14px 28px; font-size: 0.95rem; font-weight: 700;
  border-radius: 50px;
  box-shadow: 0 8px 32px rgba(37,99,235,0.4), 0 0 0 1px rgba(37,99,235,0.25);
  white-space: nowrap; letter-spacing: 0.01em;
}

/* ==============================================
   SCROLL ANIMATIONS
   ============================================== */
.fade-in { opacity: 0; transform: translateY(28px); transition: opacity 0.65s ease, transform 0.65s ease; }
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* ==============================================
   RESPONSIVE
   ============================================== */
@media (max-width: 900px) {
  .steps-grid   { grid-template-columns: 1fr; max-width: 520px; margin-left: auto; margin-right: auto; }
  .reviews-grid { grid-template-columns: 1fr; max-width: 520px; margin-left: auto; margin-right: auto; }
}

@media (max-width: 640px) {
  .container { padding: 0 16px; }
  .hero-section { padding: 24px 0 60px; }
  .hero-title { font-size: 1.75rem; }
  .hero-sub   { font-size: 0.92rem; }
  .hero-cta-group { flex-direction: column; align-items: center; }
  .process-section, .reviews-section, .cta-section { padding: 72px 0; }
  .cta-reason { padding: 22px 20px; }
  .cta-buttons { flex-direction: column; align-items: center; }
  .btn-xl { width: 100%; justify-content: center; }

  .floating-cta { bottom: 16px; width: calc(100% - 32px); left: 16px; transform: translateY(16px); }
  .floating-cta.show { transform: translateY(0); }
  .floating-cta-btn { width: 100%; justify-content: center; padding: 15px 20px; }
}