/* =============================================
   WOLCHEON — CSS Style Sheet
   Base: Navy + Gray Minimal Design
   ============================================= */

:root {
  --navy:       #0d1b2e;
  --navy-dark:  #081220;
  --navy-mid:   #152740;
  --navy-light: #1e3a5f;
  --accent:     #c8a96e;        /* warm gold accent */
  --accent-dim: rgba(200,169,110,0.15);
  --gray-50:    #f8f9fa;
  --gray-100:   #eef0f3;
  --gray-200:   #d8dde4;
  --gray-400:   #8e99a8;
  --gray-600:   #4e5c6e;
  --gray-800:   #1f2b38;
  --white:      #ffffff;
  --text-main:  #1a2535;
  --text-sub:   #4e5c6e;
  --text-light: #8e99a8;
  --border:     rgba(0,0,0,0.08);

  --ff-serif: 'Noto Serif KR', Georgia, serif;
  --ff-sans:  'Noto Sans KR', 'Apple SD Gothic Neo', sans-serif;

  --radius-sm: 4px;
  --radius:    8px;
  --radius-lg: 16px;

  --transition: 0.3s ease;
  --shadow-sm: 0 1px 4px rgba(0,0,0,0.08);
  --shadow:    0 4px 20px rgba(0,0,0,0.10);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.14);
}

/* ── RESET ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--ff-sans);
  color: var(--text-main);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button, input, select, textarea {
  font-family: var(--ff-sans);
  font-size: 1rem;
}

/* ── CONTAINER ── */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 32px;
}

/* ── SECTION BASE ── */
.section {
  padding: 100px 0;
}
.section-label {
  display: inline-block;
  font-family: var(--ff-sans);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--accent);
}
.section-title {
  font-family: var(--ff-serif);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  color: var(--navy);
  line-height: 1.35;
  margin-bottom: 16px;
}
.section-title.centered { text-align: center; }
.section-title em { font-style: normal; color: var(--accent); }
.section-sub {
  font-size: 1rem;
  color: var(--text-sub);
  margin-bottom: 56px;
}
.section-sub.centered { text-align: center; }

/* ============================================
   NAVIGATION
   ============================================ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 0;
  background: transparent;
  transition: background var(--transition), box-shadow var(--transition), padding var(--transition);
}
.nav.scrolled {
  background: var(--navy-dark);
  box-shadow: 0 2px 20px rgba(0,0,0,0.25);
  padding: 4px 0;
}
.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 20px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: padding var(--transition);
}
.nav.scrolled .nav-inner { padding: 14px 32px; }

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}
.logo-img {
  height: 40px;
  width: 40px;
  object-fit: contain;
  filter: invert(1) brightness(2);
  border-radius: 4px;
}
.logo-text {
  font-family: var(--ff-serif);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: 2px;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav-link {
  font-size: 0.875rem;
  font-weight: 500;
  color: rgba(255,255,255,0.75);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: color var(--transition);
  letter-spacing: 0.5px;
}
.nav-link:hover { color: var(--white); }
.nav-link.active { color: var(--white); }
.nav-cta {
  border: 1px solid rgba(200,169,110,0.5);
  color: var(--accent) !important;
  padding: 8px 18px;
  border-radius: var(--radius-sm);
  transition: background var(--transition), color var(--transition);
}
.nav-cta:hover {
  background: var(--accent);
  color: var(--navy-dark) !important;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  background: var(--navy-dark);
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: 120px 0 80px;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 80% at 70% 50%, rgba(30,58,95,0.6) 0%, transparent 60%),
    linear-gradient(180deg, var(--navy-dark) 0%, #0a1a30 100%);
}
.hero-bg-text {
  position: absolute;
  right: -2%;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--ff-serif);
  font-size: clamp(160px, 22vw, 300px);
  font-weight: 700;
  color: rgba(255,255,255,0.025);
  line-height: 1;
  pointer-events: none;
  user-select: none;
  letter-spacing: -10px;
}
.hero-content {
  position: relative;
  z-index: 1;
}
.hero-label {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 24px;
  padding: 6px 14px;
  border: 1px solid rgba(200,169,110,0.3);
  border-radius: 2px;
}
.hero-title {
  font-family: var(--ff-serif);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  color: var(--white);
  line-height: 1.2;
  margin-bottom: 20px;
  letter-spacing: -0.5px;
}
.hero-title em {
  font-style: normal;
  color: var(--accent);
}
.hero-sub {
  font-size: clamp(1rem, 1.5vw, 1.25rem);
  color: rgba(255,255,255,0.65);
  margin-bottom: 12px;
  font-weight: 300;
  letter-spacing: 0.5px;
}
.hero-desc {
  font-size: 1rem;
  color: var(--accent);
  font-weight: 500;
  margin-bottom: 44px;
  letter-spacing: 1px;
}
.hero-btns {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 64px;
}
.hero-stats {
  display: flex;
  align-items: center;
  gap: 0;
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 36px;
  max-width: 540px;
}
.stat-item {
  flex: 1;
  text-align: center;
}
.stat-num {
  display: block;
  font-family: var(--ff-serif);
  font-size: clamp(1.6rem, 2.5vw, 2.25rem);
  font-weight: 700;
  color: var(--white);
  line-height: 1;
  margin-bottom: 8px;
}
.stat-num small {
  font-size: 0.55em;
  font-weight: 400;
  color: var(--accent);
  margin-left: 2px;
}
.stat-label {
  display: block;
  font-size: 0.7rem;
  color: rgba(255,255,255,0.45);
  letter-spacing: 0.5px;
}
.stat-divider {
  width: 1px;
  height: 40px;
  background: rgba(255,255,255,0.1);
}
.scroll-down {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255,255,255,0.3);
  font-size: 1.1rem;
  animation: bounce 2s infinite;
}
@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(8px); }
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  letter-spacing: 0.5px;
}
.btn-primary {
  background: var(--accent);
  color: var(--navy-dark);
}
.btn-primary:hover {
  background: #b8954a;
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(200,169,110,0.35);
}
.btn-outline {
  background: transparent;
  color: var(--white);
  border: 1px solid rgba(255,255,255,0.3);
}
.btn-outline:hover {
  border-color: var(--white);
  background: rgba(255,255,255,0.07);
}
.btn-full { width: 100%; justify-content: center; }

/* ============================================
   ABOUT SECTION
   ============================================ */
.about-section {
  background: var(--gray-50);
}
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 80px;
  align-items: start;
}
.about-left .section-title {
  font-size: clamp(2rem, 3vw, 3rem);
  line-height: 1.25;
  margin-bottom: 24px;
}
.title-line {
  width: 48px;
  height: 3px;
  background: var(--accent);
  border-radius: 2px;
}
.about-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}
.about-text {
  font-size: 1rem;
  color: var(--text-sub);
  line-height: 1.8;
  margin-bottom: 36px;
}
.about-compare {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 36px;
}
.compare-card {
  flex: 1;
  padding: 20px 16px;
  border-radius: var(--radius);
  text-align: center;
  font-size: 0.9rem;
  font-weight: 500;
  line-height: 1.5;
}
.compare-no {
  background: var(--gray-100);
  border: 1px solid var(--gray-200);
  color: var(--text-sub);
  opacity: 0.7;
}
.compare-yes {
  background: var(--navy);
  color: var(--white);
}
.compare-icon {
  font-size: 1.2rem;
  margin-bottom: 10px;
}
.compare-no .compare-icon { color: var(--gray-400); }
.compare-yes .compare-icon { color: var(--accent); }
.compare-arrow {
  color: var(--gray-400);
  font-size: 1rem;
  flex-shrink: 0;
}
.about-principles {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.principle {
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding: 16px 20px;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius-sm);
}
.principle-num {
  font-family: var(--ff-serif);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent);
  flex-shrink: 0;
  letter-spacing: 1px;
}
.principle p {
  font-size: 0.9rem;
  color: var(--text-main);
  font-weight: 500;
  line-height: 1.5;
}
.about-block { margin-bottom: 32px; }

/* ============================================
   FRAMEWORK SECTION
   ============================================ */
.framework-section {
  background: var(--white);
}
.framework-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}
.fw-card {
  position: relative;
  padding: 32px 28px;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  background: var(--white);
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
  overflow: hidden;
}
.fw-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}
.fw-card:hover::before { transform: scaleX(1); }
.fw-card:hover {
  border-color: rgba(200,169,110,0.3);
  box-shadow: var(--shadow);
  transform: translateY(-3px);
}
.fw-num {
  position: absolute;
  top: 20px;
  right: 20px;
  font-family: var(--ff-serif);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--gray-100);
  line-height: 1;
}
.fw-icon {
  font-size: 1.5rem;
  color: var(--accent);
  margin-bottom: 16px;
}
.fw-card h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 10px;
  line-height: 1.4;
}
.fw-card p {
  font-size: 0.85rem;
  color: var(--text-sub);
  line-height: 1.65;
}

/* Flow diagram */
.fw-flow {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px;
  padding: 28px 32px;
  background: var(--navy);
  border-radius: var(--radius);
}
.flow-step {
  padding: 10px 18px;
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  color: rgba(255,255,255,0.8);
  letter-spacing: 0.5px;
}
.flow-step-final {
  background: rgba(200,169,110,0.15);
  border-color: rgba(200,169,110,0.4);
  color: var(--accent);
}
.flow-arrow {
  color: rgba(255,255,255,0.25);
  font-size: 0.75rem;
}

/* ============================================
   STANDARD SECTION
   ============================================ */
.standard-section {
  background: var(--navy-dark);
  color: var(--white);
}
.standard-section .section-title { color: var(--white); }
.standard-section .section-sub { color: rgba(255,255,255,0.5); }

/* Formula */
.formula-box {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 60px;
  padding: 36px 40px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-lg);
}
.formula-part {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}
.formula-val {
  font-family: var(--ff-serif);
  font-size: clamp(1rem, 2vw, 1.5rem);
  font-weight: 700;
  color: var(--white);
  white-space: nowrap;
}
.formula-desc {
  font-size: 0.7rem;
  color: rgba(255,255,255,0.35);
  letter-spacing: 0.5px;
  text-transform: uppercase;
  white-space: nowrap;
}
.formula-op {
  font-family: var(--ff-serif);
  font-size: 1.75rem;
  color: var(--accent);
  font-weight: 700;
  line-height: 1;
  margin-bottom: 20px;
}
.formula-result .formula-val { color: var(--accent); }

/* Standards grid */
.standards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 52px;
}
.std-card {
  padding: 32px 28px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius);
  transition: border-color var(--transition);
}
.std-card-highlight {
  background: rgba(200,169,110,0.08);
  border-color: rgba(200,169,110,0.25);
}
.std-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}
.std-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: rgba(255,255,255,0.5);
  letter-spacing: 0.5px;
}
.std-badge {
  font-size: 0.7rem;
  font-weight: 600;
  color: rgba(255,255,255,0.4);
  padding: 3px 8px;
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 2px;
  letter-spacing: 0.3px;
}
.std-badge-gold {
  color: var(--accent);
  border-color: rgba(200,169,110,0.3);
}
.std-number {
  font-family: var(--ff-serif);
  font-size: clamp(2.5rem, 4vw, 3.5rem);
  font-weight: 700;
  color: var(--white);
  line-height: 1;
  margin-bottom: 16px;
}
.std-number span {
  font-size: 0.45em;
  font-weight: 400;
  color: rgba(255,255,255,0.4);
  margin-left: 2px;
}
.std-card-highlight .std-number { color: var(--accent); }
.std-bar-wrap {
  height: 3px;
  background: rgba(255,255,255,0.06);
  border-radius: 2px;
  margin-bottom: 16px;
}
.std-bar {
  height: 100%;
  background: rgba(255,255,255,0.25);
  border-radius: 2px;
  transition: width 1.2s ease;
}
.std-bar-gold { background: var(--accent); }
.std-note {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.4);
  line-height: 1.6;
}

.standard-message {
  text-align: center;
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 40px;
}
.standard-message p {
  font-family: var(--ff-serif);
  font-size: clamp(1rem, 1.5vw, 1.25rem);
  color: rgba(255,255,255,0.5);
  line-height: 1.8;
}
.standard-message strong {
  color: var(--white);
  font-weight: 600;
}

/* ============================================
   SOLUTION SECTION
   ============================================ */
.solution-section {
  background: var(--gray-50);
}
.solution-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 36px;
}
.sol-card {
  padding: 36px 28px;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.sol-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 3px;
  background: var(--accent);
  transform: scaleX(0);
  transition: transform var(--transition);
}
.sol-card:hover::after { transform: scaleX(1); }
.sol-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
  border-color: transparent;
}
.sol-card-feature {
  background: var(--navy);
  border-color: transparent;
}
.sol-card-feature h3,
.sol-card-feature p { color: var(--white) !important; }
.sol-card-feature .sol-num { color: rgba(255,255,255,0.15); }
.sol-card-feature .sol-includes span {
  border-color: rgba(255,255,255,0.15);
  color: rgba(255,255,255,0.55);
}
.sol-card-feature:hover { background: var(--navy-light); }

.sol-icon {
  font-size: 1.75rem;
  color: var(--accent);
  margin-bottom: 8px;
}
.sol-num {
  font-family: var(--ff-serif);
  font-size: 3rem;
  font-weight: 700;
  color: var(--gray-100);
  line-height: 1;
  margin-bottom: 12px;
  transition: color var(--transition);
}
.sol-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 12px;
  line-height: 1.4;
}
.sol-card p {
  font-size: 0.875rem;
  color: var(--text-sub);
  line-height: 1.7;
  margin-bottom: 24px;
}
.sol-includes {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.sol-includes span {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-light);
  padding: 4px 10px;
  border: 1px solid var(--gray-200);
  border-radius: 2px;
  letter-spacing: 0.3px;
}

.solution-note {
  text-align: center;
  font-size: 0.9rem;
  color: var(--text-sub);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 20px;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
}
.solution-note i { color: var(--accent); }

/* ============================================
   CONTACT SECTION
   ============================================ */
.contact-section {
  background: var(--white);
}
.contact-wrap {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 64px;
  align-items: start;
}
.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 24px 0;
  border-bottom: 1px solid var(--gray-100);
}
.contact-item:last-child { border-bottom: none; }
.ci-icon {
  width: 44px;
  height: 44px;
  background: var(--navy);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 1rem;
  flex-shrink: 0;
}
.contact-item h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 6px;
}
.contact-item p {
  font-size: 0.825rem;
  color: var(--text-sub);
  line-height: 1.6;
}

/* Form */
.contact-form {
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 36px;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.form-group {
  margin-bottom: 20px;
}
.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--gray-600);
  margin-bottom: 8px;
  letter-spacing: 0.3px;
}
.req { color: var(--accent); }
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-sm);
  background: var(--white);
  color: var(--text-main);
  font-size: 0.9rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  appearance: none;
}
.form-group select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%238e99a8' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--navy-light);
  box-shadow: 0 0 0 3px rgba(30,58,95,0.08);
}
.form-group textarea { resize: vertical; min-height: 100px; }
.form-privacy {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  text-align: center;
  font-size: 0.78rem;
  color: var(--text-light);
  margin-top: 12px;
  line-height: 1.6;
}
.form-privacy i {
  color: var(--accent);
  flex-shrink: 0;
  font-size: 0.75rem;
}
.form-privacy strong {
  color: var(--navy);
  font-weight: 600;
}
.form-success {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-top: 16px;
  padding: 16px;
  background: rgba(13,27,46,0.06);
  border: 1px solid rgba(13,27,46,0.12);
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  color: var(--navy);
  font-weight: 500;
}
.form-success i { color: #2a7a4a; font-size: 1.1rem; }

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: var(--navy-dark);
  padding: 48px 0 32px;
}
.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
}
.footer-logo {
  display: flex;
  align-items: center;
  gap: 14px;
}
.footer-logo-img {
  height: 36px;
  width: 36px;
  object-fit: contain;
  filter: invert(1) brightness(2);
  opacity: 0.6;
}
.footer-brand {
  display: block;
  font-family: var(--ff-serif);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: 2px;
}
.footer-tagline {
  display: block;
  font-size: 0.7rem;
  color: rgba(255,255,255,0.35);
  letter-spacing: 1px;
  margin-top: 2px;
}
.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  justify-content: center;
}
.footer-nav a {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.4);
  transition: color var(--transition);
  letter-spacing: 0.5px;
}
.footer-nav a:hover { color: rgba(255,255,255,0.8); }

/* Family Site */
.footer-family {
  display: flex;
  align-items: center;
  gap: 16px;
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: 20px;
  width: 100%;
  justify-content: center;
  flex-wrap: wrap;
}
.family-label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: rgba(255,255,255,0.25);
  white-space: nowrap;
}
.family-links {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.family-links a {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.78rem;
  font-weight: 500;
  color: rgba(255,255,255,0.4);
  padding: 5px 12px;
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 2px;
  transition: color var(--transition), border-color var(--transition), background var(--transition);
  letter-spacing: 0.3px;
}
.family-links a i {
  font-size: 0.65rem;
  opacity: 0.6;
}
.family-links a:hover {
  color: var(--accent);
  border-color: rgba(200,169,110,0.35);
  background: rgba(200,169,110,0.06);
}

.footer-copy {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.2);
  letter-spacing: 0.5px;
}

/* ============================================
   SCROLL REVEAL ANIMATION
   ============================================ */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 900px) {
  .framework-grid { grid-template-columns: repeat(2, 1fr); }
  .standards-grid { grid-template-columns: repeat(2, 1fr); }
  .solution-grid  { grid-template-columns: 1fr; }
  .about-grid     { grid-template-columns: 1fr; gap: 40px; }
  .contact-wrap   { grid-template-columns: 1fr; gap: 40px; }
}

@media (max-width: 768px) {
  .section { padding: 72px 0; }
  .container { padding: 0 20px; }

  .nav-menu {
    position: fixed;
    top: 0; right: 0;
    width: 260px;
    height: 100vh;
    background: var(--navy-dark);
    flex-direction: column;
    align-items: flex-start;
    padding: 80px 32px 32px;
    gap: 4px;
    transform: translateX(100%);
    transition: transform var(--transition);
    box-shadow: -8px 0 32px rgba(0,0,0,0.3);
    z-index: 999;
  }
  .nav-menu.open { transform: translateX(0); }
  .nav-link { font-size: 1rem; padding: 12px 0; width: 100%; border-bottom: 1px solid rgba(255,255,255,0.06); border-radius: 0; }
  .nav-cta { border: 1px solid rgba(200,169,110,0.4); padding: 12px 0; margin-top: 8px; text-align: left; }
  .hamburger { display: flex; z-index: 1000; }

  .hero-stats { flex-direction: column; gap: 24px; max-width: 100%; }
  .stat-divider { width: 40px; height: 1px; }
  .framework-grid { grid-template-columns: 1fr; }
  .standards-grid { grid-template-columns: 1fr; }
  .formula-box { gap: 8px; padding: 24px 20px; }
  .formula-op { font-size: 1.25rem; }
  .form-row { grid-template-columns: 1fr; }
  .fw-flow { gap: 6px; }
  .flow-step { padding: 8px 12px; font-size: 0.78rem; }
  .about-compare { flex-direction: column; }
  .compare-arrow { transform: rotate(90deg); }
}

@media (max-width: 480px) {
  .hero-title { font-size: 2rem; }
  .hero-btns { flex-direction: column; }
  .btn { width: 100%; justify-content: center; }
  .formula-box { flex-direction: column; align-items: center; }
  .formula-op { margin-bottom: 0; }
}