/* ===== SOLUTION PAGE — GOVERNANCE ===== */

/* Active nav indicator */
.active-nav { color: var(--blue-600) !important; font-weight: 700 !important; }
.active-link { color: var(--blue-600) !important; background: var(--blue-50) !important; }

/* ===== HERO ===== */
.sol-hero {
  position: relative;
  min-height: 520px;
  display: flex;
  align-items: flex-end;
  padding: 80px 0 0;
  overflow: hidden;
}

.sol-hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.sol-hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 40%;
}

.sol-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(15, 23, 42, 0.3) 0%,
    rgba(15, 23, 42, 0.6) 40%,
    rgba(15, 23, 42, 0.85) 100%
  );
}

.sol-hero-content {
  position: relative;
  z-index: 1;
  padding: 80px 24px 48px;
  max-width: 800px;
}

.sol-hero-badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #F97316;
  background: rgba(249, 115, 22, 0.12);
  border: 1px solid rgba(249, 115, 22, 0.3);
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 24px;
}

.sol-hero-content h1 {
  font-size: clamp(32px, 5vw, 52px);
  font-weight: 900;
  color: #fff;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}

.sol-hero-content > p {
  font-size: 16px;
  color: rgba(255,255,255,0.75);
  line-height: 1.7;
  max-width: 640px;
  margin-bottom: 36px;
}

/* Hero stats */
.sol-hero-stats {
  display: flex;
  gap: 40px;
}

.sol-stat {
  display: flex;
  flex-direction: column;
}

.sol-stat-num {
  font-size: 32px;
  font-weight: 900;
  color: #F97316;
  letter-spacing: -0.02em;
  line-height: 1;
  margin-bottom: 4px;
  font-family: 'Inter', sans-serif;
}

.sol-stat-label {
  font-size: 12px;
  color: rgba(255,255,255,0.55);
  font-weight: 500;
}

/* ===== ADVANTAGES ===== */
.sol-advantages {
  padding: 80px 0;
  background: var(--white);
}

.sol-adv-card {
  display: flex;
  gap: 48px;
  align-items: flex-start;
  margin-bottom: 64px;
  padding: 40px;
  background: var(--gray-50);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-xl);
  transition: all 0.3s;
}

.sol-adv-card:last-child {
  margin-bottom: 0;
}

.sol-adv-card:hover {
  box-shadow: var(--shadow-lg);
  border-color: var(--blue-100);
  transform: translateY(-3px);
}

.sol-adv-reverse {
  flex-direction: row-reverse;
}

/* Visual side */
.sol-adv-visual {
  flex-shrink: 0;
  width: 320px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.sol-adv-num {
  font-size: 48px;
  font-weight: 900;
  color: var(--blue-100);
  letter-spacing: -0.04em;
  line-height: 1;
  font-family: 'Inter', sans-serif;
}

.sol-adv-img {
  width: 100%;
  border-radius: 16px;
  object-fit: cover;
  box-shadow: 0 4px 16px rgba(0,0,0,0.08);
}

.sol-adv-icon {
  width: 72px;
  height: 72px;
  background: linear-gradient(135deg, var(--blue-500), var(--blue-600));
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(14,165,233,0.25);
}

.sol-adv-icon svg {
  width: 36px;
  height: 36px;
  stroke: #fff;
}

/* Body side */
.sol-adv-body {
  flex: 1;
}

.sol-adv-body h3 {
  font-size: 22px;
  font-weight: 800;
  color: var(--gray-900);
  margin-bottom: 14px;
  letter-spacing: -0.02em;
}

.sol-adv-body > p {
  font-size: 14px;
  color: var(--gray-500);
  line-height: 1.75;
  margin-bottom: 20px;
}

.sol-adv-list {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.sol-adv-list li {
  font-size: 13px;
  color: var(--gray-600);
  line-height: 1.5;
  padding: 10px 14px;
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-sm);
  position: relative;
  padding-left: 28px;
  transition: all 0.2s;
}

.sol-adv-list li::before {
  content: '';
  position: absolute;
  left: 12px;
  top: 14px;
  width: 6px;
  height: 6px;
  background: var(--blue-500);
  border-radius: 50%;
}

.sol-adv-list li:hover {
  border-color: var(--blue-200);
  background: var(--blue-50);
}

/* ===== CTA ===== */
.sol-cta {
  padding: 60px 0;
  background: var(--gray-50);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .sol-adv-card,
  .sol-adv-reverse {
    flex-direction: column;
    padding: 28px;
    gap: 24px;
  }
  .sol-adv-visual {
    width: 100%;
    flex-direction: row;
    justify-content: flex-start;
  }
  .sol-adv-list {
    grid-template-columns: 1fr;
  }
  .sol-hero-stats {
    flex-wrap: wrap;
    gap: 24px;
  }
}

@media (max-width: 480px) {
  .sol-hero-content h1 {
    font-size: 28px;
  }
}


/* ===== 3-COLUMN ADVANTAGE TILES ===== */
.sol-adv-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.sol-adv-tile {
  background: var(--gray-50);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-xl);
  padding: 36px 28px;
  transition: all 0.3s;
  text-align: center;
}

.sol-adv-tile:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--blue-100);
}

.sol-tile-icon {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--blue-500), var(--blue-600));
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  box-shadow: 0 6px 20px rgba(14,165,233,0.25);
}

.sol-tile-icon svg {
  width: 32px;
  height: 32px;
  stroke: #fff;
}

.sol-adv-tile h3 {
  font-size: 17px;
  font-weight: 800;
  color: var(--gray-900);
  margin-bottom: 12px;
}

.sol-adv-tile p {
  font-size: 13px;
  color: var(--gray-500);
  line-height: 1.7;
}

/* ===== SCENARIOS SECTION ===== */
.sol-scenarios {
  padding: 80px 0;
  background: var(--gray-50);
}

/* ===== ARCHITECTURE SECTION ===== */
.sol-architecture {
  padding: 80px 0;
  background: var(--white);
}

.sol-arch-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.sol-arch-col {
  background: var(--gray-50);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-xl);
  padding: 32px;
  text-align: center;
  transition: all 0.3s;
}

.sol-arch-col:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--blue-100);
}

.sol-arch-header {
  font-size: 16px;
  font-weight: 800;
  color: var(--gray-900);
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--blue-100);
}

.sol-arch-items {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin-bottom: 20px;
}

.sol-arch-items span {
  font-size: 12px;
  font-weight: 600;
  color: var(--blue-600);
  background: var(--blue-50);
  border: 1px solid var(--blue-200);
  padding: 6px 14px;
  border-radius: 100px;
}

.sol-arch-arrow {
  font-size: 24px;
  color: var(--blue-400);
  margin-bottom: 12px;
}

.sol-arch-target {
  font-size: 15px;
  font-weight: 800;
  color: var(--white);
  background: linear-gradient(135deg, var(--blue-500), var(--blue-600));
  padding: 12px 24px;
  border-radius: var(--radius-md);
  display: inline-block;
  box-shadow: 0 4px 14px rgba(14,165,233,0.3);
}

@media (max-width: 900px) {
  .sol-adv-grid-3 { grid-template-columns: 1fr; }
  .sol-arch-grid { grid-template-columns: 1fr; }
}


/* ===== ARCHITECTURE DIAGRAM ===== */
.sol-arch-diagram {
  max-width: 700px;
  margin: 0 auto;
}

.sol-arch-layer {
  background: var(--gray-50);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-lg);
  padding: 24px 32px;
  text-align: center;
  transition: all 0.3s;
}

.sol-arch-layer:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--blue-100);
}

.sol-arch-layer-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--blue-500);
  margin-bottom: 14px;
}

.sol-arch-layer-items {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
}

.sol-arch-layer-items span {
  font-size: 13px;
  font-weight: 600;
  color: var(--gray-700);
  background: var(--white);
  border: 1px solid var(--gray-200);
  padding: 8px 18px;
  border-radius: var(--radius-sm);
  transition: all 0.2s;
}

.sol-arch-layer-items span:hover {
  border-color: var(--blue-300);
  color: var(--blue-600);
  background: var(--blue-50);
}

.sol-arch-connector {
  text-align: center;
  font-size: 20px;
  color: var(--blue-300);
  padding: 8px 0;
}


/* ===== PHASE LIST (for migration page) ===== */
.sol-phase-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.sol-phase-list li {
  font-size: 13px;
  color: var(--gray-600);
  line-height: 1.5;
  padding: 8px 12px 8px 24px;
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-sm);
  position: relative;
}

.sol-phase-list li::before {
  content: '';
  position: absolute;
  left: 10px;
  top: 13px;
  width: 6px;
  height: 6px;
  background: var(--blue-500);
  border-radius: 50%;
}

/* ===== PROCESS GRID (4-step timeline) ===== */
.sol-process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.sol-process-step {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  position: relative;
  transition: all 0.3s;
}

.sol-process-step:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  border-color: var(--blue-100);
}

.sol-process-step::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--blue-400), var(--blue-500));
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.sol-process-num {
  font-size: 36px;
  font-weight: 900;
  color: var(--blue-100);
  letter-spacing: -0.04em;
  line-height: 1;
  margin-bottom: 12px;
  font-family: 'Inter', sans-serif;
}

.sol-process-step h4 {
  font-size: 16px;
  font-weight: 800;
  color: var(--gray-900);
  margin-bottom: 16px;
}

.sol-process-step ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.sol-process-step li {
  font-size: 12px;
  color: var(--gray-500);
  padding-left: 14px;
  position: relative;
  line-height: 1.5;
}

.sol-process-step li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 6px;
  width: 5px;
  height: 5px;
  background: var(--blue-400);
  border-radius: 50%;
}

@media (max-width: 900px) {
  .sol-process-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .sol-process-grid { grid-template-columns: 1fr; }
}


/* ===== 2x2 ADVANTAGE GRID ===== */
.sol-adv-grid-2x2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

@media (max-width: 768px) {
  .sol-adv-grid-2x2 { grid-template-columns: 1fr; }
}


/* ===== CUSTOMER CASE CARD ===== */
.sol-case-card {
  background: var(--gray-50);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-xl);
  padding: 40px;
  max-width: 800px;
  margin: 0 auto;
}

.sol-case-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
}

.sol-case-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--blue-500), var(--blue-600));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.sol-case-icon svg {
  width: 24px;
  height: 24px;
  stroke: #fff;
}

.sol-case-header h3 {
  font-size: 20px;
  font-weight: 800;
  color: var(--gray-900);
}

.sol-case-desc {
  font-size: 14px;
  color: var(--gray-500);
  line-height: 1.75;
  margin-bottom: 28px;
}

.sol-case-results {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.sol-case-stat {
  text-align: center;
  padding: 16px 8px;
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-md);
}

.sol-case-num {
  display: block;
  font-size: 28px;
  font-weight: 900;
  color: var(--blue-600);
  letter-spacing: -0.02em;
  line-height: 1;
  margin-bottom: 6px;
  font-family: 'Inter', sans-serif;
}

.sol-case-stat span:last-child {
  font-size: 11px;
  color: var(--gray-400);
  font-weight: 500;
}

@media (max-width: 768px) {
  .sol-case-results { grid-template-columns: repeat(2, 1fr); }
  .sol-case-card { padding: 24px; }
}


/* ===== CASE SECTIONS (challenge + solution) ===== */
.sol-case-sections {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 28px;
}

.sol-case-section {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-md);
  padding: 20px;
}

.sol-case-section h4 {
  font-size: 13px;
  font-weight: 700;
  color: var(--blue-600);
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.sol-case-section ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.sol-case-section li {
  font-size: 12px;
  color: var(--gray-600);
  line-height: 1.6;
  padding-left: 14px;
  position: relative;
}

.sol-case-section li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 7px;
  width: 5px;
  height: 5px;
  background: var(--blue-400);
  border-radius: 50%;
}

@media (max-width: 768px) {
  .sol-case-sections { grid-template-columns: 1fr; }
}