/* ==========================================================================
   PT. Purwa Teknologi Interaktif — app.css
   purwateknologi.com | Where Technology Begins
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. CSS Custom Properties (Design Tokens)
   -------------------------------------------------------------------------- */
:root {
  --color-primary:     #1E3A8A;
  --color-primary-dark:#162d6e;
  --color-accent:      #06B6D4;
  --color-accent-dark: #0891b2;
  --color-dark:        #1F2937;
  --color-gray:        #6B7280;
  --color-light-gray:  #F3F4F6;
  --color-white:       #FFFFFF;
  --color-border:      #E5E7EB;

  --font-base:         'Poppins', sans-serif;
  --font-size-xs:      0.75rem;
  --font-size-sm:      0.875rem;
  --font-size-base:    1rem;
  --font-size-lg:      1.125rem;
  --font-size-xl:      1.25rem;
  --font-size-2xl:     1.5rem;
  --font-size-3xl:     1.875rem;
  --font-size-4xl:     2.25rem;
  --font-size-5xl:     3rem;

  --radius-sm:   0.375rem;
  --radius-md:   0.75rem;
  --radius-lg:   1rem;
  --radius-xl:   1.5rem;
  --radius-full: 9999px;

  --shadow-sm:  0 1px 3px rgba(0,0,0,.08);
  --shadow-md:  0 4px 16px rgba(0,0,0,.10);
  --shadow-lg:  0 10px 40px rgba(0,0,0,.12);
  --shadow-card:0 2px 12px rgba(30,58,138,.08);

  --transition: 0.25s ease;
  --container:  1200px;
}

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

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

body {
  font-family: var(--font-base);
  font-size: var(--font-size-base);
  color: var(--color-dark);
  background-color: var(--color-white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

ul, ol { list-style: none; }

button, input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}

/* --------------------------------------------------------------------------
   3. Utility Classes
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
}

.section { padding: 5rem 0; }
.section--gray { background-color: var(--color-light-gray); }
.section--dark { background-color: var(--color-dark); color: var(--color-white); }
.section--blue { background: linear-gradient(135deg, var(--color-primary) 0%, #1a4db8 100%); color: var(--color-white); }

.text-center  { text-align: center; }
.text-left    { text-align: left; }
.text-primary { color: var(--color-primary); }
.text-accent  { color: var(--color-accent); }
.text-gray    { color: var(--color-gray); }
.text-white   { color: var(--color-white); }

.font-bold   { font-weight: 700; }
.font-semi   { font-weight: 600; }
.font-medium { font-weight: 500; }

.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 0.75rem; }
.mt-4 { margin-top: 1rem; }
.mt-6 { margin-top: 1.5rem; }
.mt-8 { margin-top: 2rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mb-8 { margin-bottom: 2rem; }

.grid      { display: grid; gap: 1.5rem; }
.grid-2    { grid-template-columns: 1fr; }
.grid-3    { grid-template-columns: 1fr; }
.grid-4    { grid-template-columns: 1fr; }

.flex          { display: flex; }
.flex-center   { display: flex; align-items: center; justify-content: center; }
.flex-between  { display: flex; align-items: center; justify-content: space-between; }
.flex-wrap     { flex-wrap: wrap; }
.gap-2         { gap: 0.5rem; }
.gap-4         { gap: 1rem; }

.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.875rem;
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.badge--accent { background: rgba(6,182,212,.15); color: var(--color-accent-dark); }
.badge--blue   { background: rgba(30,58,138,.1);  color: var(--color-primary); }

/* --------------------------------------------------------------------------
   4. Typography
   -------------------------------------------------------------------------- */
.section-label {
  display: inline-block;
  color: var(--color-accent);
  font-size: var(--font-size-sm);
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

.section-title {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  line-height: 1.25;
  color: var(--color-dark);
  margin-bottom: 1rem;
}

.section-title--white { color: var(--color-white); }

.section-desc {
  font-size: var(--font-size-lg);
  color: var(--color-gray);
  max-width: 640px;
  line-height: 1.75;
}

.section-desc--white { color: rgba(255,255,255,0.8); }

/* --------------------------------------------------------------------------
   5. Buttons
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: 600;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transition);
  white-space: nowrap;
  text-decoration: none;
}

.btn--primary {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}
.btn--primary:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn--accent {
  background: var(--color-accent);
  color: var(--color-white);
  border-color: var(--color-accent);
}
.btn--accent:hover {
  background: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn--outline {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn--outline:hover {
  background: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-2px);
}

.btn--outline-white {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255,255,255,0.6);
}
.btn--outline-white:hover {
  background: rgba(255,255,255,0.15);
  border-color: var(--color-white);
}

.btn--sm {
  padding: 0.5rem 1.25rem;
  font-size: var(--font-size-xs);
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
}

/* --------------------------------------------------------------------------
   6. Cards
   -------------------------------------------------------------------------- */
.card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.card__img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
}

.card__body {
  padding: 1.5rem;
}

.card__tag {
  display: inline-block;
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.5rem;
}

.card__title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-dark);
  line-height: 1.35;
  margin-bottom: 0.75rem;
}

.card__desc {
  font-size: var(--font-size-sm);
  color: var(--color-gray);
  line-height: 1.7;
  margin-bottom: 1rem;
}

.card__meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: var(--font-size-xs);
  color: var(--color-gray);
  padding-top: 1rem;
  border-top: 1px solid var(--color-border);
}

/* --------------------------------------------------------------------------
   7. Navigation
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 999;
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition);
}
.site-header.scrolled { box-shadow: var(--shadow-md); }

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.navbar__brand {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  text-decoration: none;
}

.navbar__logo {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 800;
  font-size: var(--font-size-lg);
  flex-shrink: 0;
}

.navbar__logo-img {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  display: block;
  object-fit: contain;
  flex-shrink: 0;
}

.navbar__brand-text {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  line-height: 1.2;
  min-width: 0;
}
.navbar__brand-name {
  font-size: var(--font-size-sm);
  font-weight: 700;
  color: var(--color-primary);
}
.navbar__brand-tagline {
  font-size: 0.65rem;
  color: var(--color-gray);
  font-weight: 400;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.navbar__nav {
  display: none;
  align-items: center;
  gap: 0.25rem;
}

.navbar__link {
  padding: 0.5rem 0.875rem;
  border-radius: var(--radius-sm);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-dark);
  transition: all var(--transition);
  white-space: nowrap;
}
.navbar__link:hover,
.navbar__link.active {
  color: var(--color-primary);
  background: rgba(30,58,138,.07);
}

/* Dropdown Menu Styles */
.navbar__dropdown {
  position: relative;
}

.navbar__dropdown-toggle {
  border: none;
  background: transparent;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.navbar__dropdown-toggle:hover {
  color: var(--color-primary);
  background: rgba(30,58,138,.07);
}

.dropdown-arrow {
  font-size: 0.65rem;
  transition: transform var(--transition);
}

.navbar__dropdown:hover .dropdown-arrow,
.navbar__dropdown-toggle[aria-expanded="true"] .dropdown-arrow {
  transform: rotate(180deg);
}

.navbar__dropdown-menu {
  position: absolute;
  top: 100%;
  left: -10px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  min-width: 200px;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all var(--transition);
  margin-top: 0.5rem;
  overflow: hidden;
}

.navbar__dropdown:hover .navbar__dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.navbar__dropdown-item {
  display: block;
  padding: 0.75rem 1rem;
  color: var(--color-dark);
  transition: all var(--transition);
  white-space: nowrap;
  border-left: 3px solid transparent;
}

.navbar__dropdown-item:hover {
  background-color: var(--color-light-gray);
  color: var(--color-primary);
  border-left-color: var(--color-primary);
}

.navbar__dropdown-item.active {
  background-color: rgba(30,58,138,.07);
  color: var(--color-primary);
  border-left-color: var(--color-primary);
}

.navbar__cta {
  display: none;
}

.navbar__toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  border-radius: var(--radius-sm);
  transition: background var(--transition);
}
.navbar__toggle:hover { background: var(--color-light-gray); }
.navbar__toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-dark);
  border-radius: 2px;
  transition: all var(--transition);
}
.navbar__toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.navbar__toggle.open span:nth-child(2) { opacity: 0; }
.navbar__toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile menu */
.mobile-menu {
  display: none;
  flex-direction: column;
  padding: 1rem 1.25rem 1.5rem;
  border-top: 1px solid var(--color-border);
  background: white;
  gap: 0.25rem;
}
.mobile-menu.open { display: flex; }
.mobile-menu .navbar__link {
  display: block;
  padding: 0.75rem 1rem;
}
.mobile-menu .btn { margin-top: 0.75rem; justify-content: center; }

/* Mobile Dropdown Menu */
.mobile-dropdown-toggle {
  display: block;
  width: 100%;
  text-align: left;
  padding: 0.75rem 1rem;
  color: var(--color-dark);
  background: none;
  border: none;
  cursor: pointer;
  font-size: var(--font-size-sm);
  font-weight: 500;
  font-family: inherit;
  transition: all var(--transition);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.mobile-dropdown-toggle:hover {
  background: rgba(30,58,138,.07);
  color: var(--color-primary);
}

.mobile-dropdown-toggle[aria-expanded="true"] {
  color: var(--color-primary);
  background: rgba(30,58,138,.07);
}

.mobile-dropdown-toggle[aria-expanded="true"] .dropdown-arrow {
  transform: rotate(180deg);
}

.mobile-dropdown-menu {
  background: rgba(30,58,138,.03);
  border-left: 2px solid var(--color-primary);
  margin-left: 1rem;
  overflow: hidden;
  max-height: 0;
  transition: max-height var(--transition);
  display: block;
}

.mobile-dropdown-menu.open {
  max-height: 500px;
  display: block;
}

.navbar__link--submenu {
  padding-left: 2rem;
  font-weight: 400;
  color: var(--color-gray);
  border-radius: 0;
}

.navbar__link--submenu:hover {
  background: transparent;
  color: var(--color-primary);
}

/* --------------------------------------------------------------------------
   8. Hero Section
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  min-height: calc(100vh - 70px);
  display: flex;
  align-items: center;
  overflow: hidden;
  background: linear-gradient(135deg, #0f1f4e 0%, var(--color-primary) 50%, #0e7490 100%);
  color: var(--color-white);
  padding-top: 2.5rem;
}

.hero__bg-dots {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(255,255,255,.07) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
}

.hero__glow {
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(6,182,212,.25) 0%, transparent 70%);
  top: -100px;
  right: -100px;
  pointer-events: none;
}

.hero .container {
  width: 100%;
}

.hero__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  width: 100%;
}

.hero__content {
  position: relative;
  z-index: 1;
}

.hero__visual {
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: center;
  align-items: center;
}

/* ── Orbit Animation ── */
.orbit-container {
  position: relative;
  width: 360px;
  height: 360px;
}

.orbit-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px dashed rgba(6,182,212,0.35);
}

.orbit-ring-1 { inset: 0; }
.orbit-ring-2 { inset: 36px; }
.orbit-ring-3 { inset: 72px; }

@keyframes orbit-cw  { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
@keyframes orbit-ccw { from { transform: rotate(0deg); } to { transform: rotate(-360deg); } }

.orbit-ring-1 { animation: orbit-cw  20s linear infinite; }
.orbit-ring-2 { animation: orbit-ccw 14s linear infinite; }

.orbit-dot {
  position: absolute;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-accent);
  top: -6px;
  left: 50%;
  margin-left: -6px;
  box-shadow: 0 0 0 4px rgba(6,182,212,0.2);
}

.orbit-center {
  position: absolute;
  inset: 80px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: #fff;
  text-align: center;
  box-shadow: 0 20px 60px rgba(6,182,212,0.45);
  animation: floatOrbitCenter 6s ease-in-out infinite;
}

.orbit-purwa-char {
  font-size: 2.8rem;
  font-weight: 800;
  line-height: 1;
}

.orbit-purwa-sub {
  font-size: 0.55rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  opacity: 0.85;
  margin-top: 0.2rem;
}

@keyframes floatOrbitCenter {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-12px); }
}

@media (max-width: 768px) {
  .hero__grid {
    grid-template-columns: 1fr;
  }
  .hero__visual { display: none; }
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(6,182,212,.2);
  border: 1px solid rgba(6,182,212,.4);
  color: var(--color-accent);
  padding: 0.375rem 1rem;
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-top: 1rem;
  margin-bottom: 1.5rem;
}

.hero__title {
  font-size: clamp(2rem, 6vw, var(--font-size-5xl));
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 1.25rem;
  letter-spacing: -0.02em;
}

.hero__title span { color: var(--color-accent); }

.hero__tagline {
  font-size: var(--font-size-xl);
  font-weight: 300;
  color: rgba(255,255,255,0.75);
  margin-bottom: 1.25rem;
  letter-spacing: 0.05em;
  font-style: italic;
}

.hero__desc {
  font-size: var(--font-size-lg);
  color: rgba(255,255,255,0.8);
  line-height: 1.75;
  margin-bottom: 2.5rem;
}

.hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.15);
}

.hero__stat-value {
  font-size: var(--font-size-3xl);
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1;
}

.hero__stat-label {
  font-size: var(--font-size-xs);
  color: rgba(255,255,255,0.65);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: 0.5rem;
  padding-bottom: 0.75rem;
}

/* --------------------------------------------------------------------------
   9. Value / Trust Section
   -------------------------------------------------------------------------- */
.value-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border);
  text-align: center;
  transition: all var(--transition);
}
.value-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-accent);
}

.value-card__icon {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(30,58,138,.1), rgba(6,182,212,.15));
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.25rem;
  font-size: 1.75rem;
}

.value-card__title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 0.5rem;
}

.value-card__desc {
  font-size: var(--font-size-sm);
  color: var(--color-gray);
  line-height: 1.7;
}

/* --------------------------------------------------------------------------
   10. Services Section
   -------------------------------------------------------------------------- */
.service-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 2rem 1.75rem;
  border: 1px solid var(--color-border);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}
.service-card:hover::before { transform: scaleX(1); }
.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.service-card__num {
  font-size: 3rem;
  font-weight: 800;
  color: rgba(30,58,138,.08);
  line-height: 1;
  margin-bottom: 0.75rem;
  font-variant-numeric: tabular-nums;
}

.service-card__icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  color: white;
  font-size: 1.4rem;
}

.service-card__title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 0.75rem;
}

.service-card__desc {
  font-size: var(--font-size-sm);
  color: var(--color-gray);
  line-height: 1.7;
}

/* --------------------------------------------------------------------------
   11. Portfolio Grid
   -------------------------------------------------------------------------- */
.portfolio-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.portfolio-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
  box-shadow: var(--shadow-card);
}

.portfolio-card__img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.portfolio-card:hover .portfolio-card__img { transform: scale(1.04); }

.portfolio-card__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(15,31,78,.92) 0%, transparent 55%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.5rem;
  opacity: 0;
  transition: opacity var(--transition);
}
.portfolio-card:hover .portfolio-card__overlay { opacity: 1; }

.portfolio-card__title {
  color: var(--color-white);
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin-bottom: 0.375rem;
}

.portfolio-card__desc {
  color: rgba(255,255,255,0.8);
  font-size: var(--font-size-sm);
  margin-bottom: 1rem;
}

/* --------------------------------------------------------------------------
   12. Article / Blog Cards
   -------------------------------------------------------------------------- */
.article-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border);
  transition: all var(--transition);
}
.article-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.article-card__img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
}

.article-card__body { padding: 1.5rem; }

.article-card__cat {
  display: inline-block;
  color: var(--color-accent);
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.5rem;
}

.article-card__title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-dark);
  line-height: 1.35;
  margin-bottom: 0.75rem;
}
.article-card__title a:hover { color: var(--color-primary); }

.article-card__excerpt {
  font-size: var(--font-size-sm);
  color: var(--color-gray);
  line-height: 1.7;
  margin-bottom: 1.25rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-card__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  border-top: 1px solid var(--color-border);
  font-size: var(--font-size-xs);
  color: var(--color-gray);
}

.article-card__author {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.article-card__avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  object-fit: cover;
  background: var(--color-light-gray);
}

/* --------------------------------------------------------------------------
   13. Team Section
   -------------------------------------------------------------------------- */
.team-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 2rem 1.5rem;
  text-align: center;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border);
  transition: all var(--transition);
}
.team-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.team-card__photo {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 1.25rem;
  border: 3px solid var(--color-light-gray);
  background: var(--color-light-gray);
}

.team-card__name {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 0.25rem;
}

.team-card__position {
  font-size: var(--font-size-sm);
  color: var(--color-accent);
  font-weight: 500;
  margin-bottom: 0.875rem;
}

.team-card__bio {
  font-size: var(--font-size-sm);
  color: var(--color-gray);
  line-height: 1.65;
  margin-bottom: 1rem;
}

.team-card__social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--color-light-gray);
  color: var(--color-primary);
  font-size: 0.85rem;
  transition: all var(--transition);
}
.team-card__social a:hover {
  background: var(--color-primary);
  color: white;
}

/* --------------------------------------------------------------------------
   14. Events Section
   -------------------------------------------------------------------------- */
.event-card {
  display: flex;
  gap: 1.25rem;
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border);
  transition: all var(--transition);
}
.event-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.event-card__date {
  flex-shrink: 0;
  width: 60px;
  text-align: center;
  background: var(--color-primary);
  border-radius: var(--radius-md);
  padding: 0.75rem 0.5rem;
  color: white;
}

.event-card__day {
  font-size: var(--font-size-2xl);
  font-weight: 800;
  line-height: 1;
}

.event-card__month {
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  opacity: 0.8;
}

.event-card__content { flex: 1; }

.event-card__title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 0.375rem;
}

.event-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  font-size: var(--font-size-xs);
  color: var(--color-gray);
  margin-bottom: 0.625rem;
}

.event-card__desc {
  font-size: var(--font-size-sm);
  color: var(--color-gray);
  line-height: 1.65;
}

/* --------------------------------------------------------------------------
   15. Philosophy Section
   -------------------------------------------------------------------------- */
.philosophy-section {
  background: linear-gradient(135deg, #0f1f4e 0%, var(--color-primary) 100%);
  color: var(--color-white);
  padding: 6rem 0;
  position: relative;
  overflow: hidden;
}

.philosophy-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 28px 28px;
}

.philosophy-quote {
  position: relative;
  font-size: clamp(1.25rem, 3vw, var(--font-size-3xl));
  font-weight: 300;
  font-style: italic;
  line-height: 1.6;
  padding: 0 0 0 2rem;
  border-left: 4px solid var(--color-accent);
  color: rgba(255,255,255,.92);
}

.philosophy-word {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 2rem;
}
.philosophy-word__term {
  font-size: var(--font-size-2xl);
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
}
.philosophy-word__meaning { color: var(--color-accent-dark); font-weight: 600; margin-bottom: 0.5rem; }
.philosophy-word__desc { font-size: var(--font-size-sm); color: var(--color-gray); }

/* --------------------------------------------------------------------------
   16. CTA Section
   -------------------------------------------------------------------------- */
.cta-section {
  background: linear-gradient(135deg, var(--color-primary) 0%, #0e7490 100%);
  color: var(--color-white);
  padding: 5rem 0;
  text-align: center;
}

.cta-section__title {
  font-size: clamp(1.75rem, 4vw, var(--font-size-4xl));
  font-weight: 800;
  margin-bottom: 1rem;
  line-height: 1.2;
}

.cta-section__desc {
  font-size: var(--font-size-lg);
  color: rgba(255,255,255,0.8);
  max-width: 600px;
  margin: 0 auto 2rem;
}

/* --------------------------------------------------------------------------
   17. Footer
   -------------------------------------------------------------------------- */
.site-footer {
  background: var(--color-dark);
  color: rgba(255,255,255,0.8);
  padding: 4rem 0 0;
}

.footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(255,255,255,.1);
}

.footer__brand-logo {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  margin-bottom: 1rem;
}

.footer__brand-name {
  font-size: var(--font-size-base);
  font-weight: 700;
  color: var(--color-white);
  line-height: 1.3;
}

.footer__brand-sub {
  font-size: var(--font-size-xs);
  color: rgba(255,255,255,.5);
  letter-spacing: 0.05em;
}

.footer__tagline {
  font-size: var(--font-size-sm);
  color: var(--color-accent);
  font-style: italic;
  margin-bottom: 1rem;
}

.footer__desc {
  font-size: var(--font-size-sm);
  color: rgba(255,255,255,.6);
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.footer__heading {
  font-size: var(--font-size-sm);
  font-weight: 700;
  color: var(--color-white);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1.25rem;
}

.footer__links { display: flex; flex-direction: column; gap: 0.625rem; }
.footer__links a {
  font-size: var(--font-size-sm);
  color: rgba(255,255,255,.65);
  transition: color var(--transition);
}
.footer__links a:hover { color: var(--color-accent); }

.footer__contact-item {
  display: flex;
  align-items: flex-start;
  gap: 0.625rem;
  font-size: var(--font-size-sm);
  color: rgba(255,255,255,.65);
  margin-bottom: 0.75rem;
}

.footer__bottom {
  padding: 1.5rem 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  text-align: center;
  font-size: var(--font-size-xs);
  color: rgba(255,255,255,.45);
}

/* --------------------------------------------------------------------------
   18. Article Single Page
   -------------------------------------------------------------------------- */
.article-header {
  background: linear-gradient(135deg, var(--color-primary) 0%, #0e4c8a 100%);
  color: white;
  padding: 4rem 0 3rem;
}

.article-body {
  max-width: 760px;
  margin: 0 auto;
  padding: 3rem 1.25rem;
}

.article-body h2 {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-dark);
  margin: 2.25rem 0 1rem;
}

.article-body h3 {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--color-dark);
  margin: 1.75rem 0 0.75rem;
}

.article-body p {
  margin-bottom: 1.25rem;
  color: var(--color-dark);
  line-height: 1.85;
}

.article-body ul, .article-body ol {
  margin: 1rem 0 1.5rem 1.5rem;
  list-style: initial;
  color: var(--color-dark);
  line-height: 1.8;
}

.article-body ul li, .article-body ol li { margin-bottom: 0.5rem; }

.article-body blockquote {
  border-left: 4px solid var(--color-accent);
  padding: 1rem 1.5rem;
  background: var(--color-light-gray);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 2rem 0;
  font-style: italic;
  color: var(--color-gray);
}

.article-body img {
  border-radius: var(--radius-md);
  margin: 2rem 0;
  width: 100%;
}

/* --------------------------------------------------------------------------
   19. Contact Section
   -------------------------------------------------------------------------- */
.contact-form {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border);
}

.form-group { margin-bottom: 1.25rem; }

.form-label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: 0.5rem;
}

.form-control {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-sm);
  color: var(--color-dark);
  background: var(--color-white);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}
.form-control:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(6,182,212,.15);
}

textarea.form-control {
  resize: vertical;
  min-height: 140px;
}

/* --------------------------------------------------------------------------
   20. Page Header (inner pages)
   -------------------------------------------------------------------------- */
.page-header {
  background: linear-gradient(135deg, var(--color-primary) 0%, #133399 100%);
  color: white;
  padding: 4rem 0 3.5rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.page-header::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 28px 28px;
}
.page-header__content { position: relative; z-index: 1; }
.page-header__breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-size: var(--font-size-sm);
  color: rgba(255,255,255,.65);
  margin-bottom: 1rem;
}
.page-header__breadcrumb a { color: var(--color-accent); }
.page-header__title {
  font-size: clamp(1.75rem, 5vw, var(--font-size-4xl));
  font-weight: 800;
  margin-bottom: 0.75rem;
}
.page-header__desc {
  font-size: var(--font-size-lg);
  color: rgba(255,255,255,.75);
  max-width: 580px;
  margin: 0 auto;
}

/* --------------------------------------------------------------------------
   21. Scroll animations
   -------------------------------------------------------------------------- */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in {
  opacity: 0;
  transition: opacity 0.6s ease;
}
.fade-in.visible { opacity: 1; }

/* stagger delays */
.delay-1 { transition-delay: 0.1s !important; }
.delay-2 { transition-delay: 0.2s !important; }
.delay-3 { transition-delay: 0.3s !important; }
.delay-4 { transition-delay: 0.4s !important; }

/* --------------------------------------------------------------------------
   22. Responsive — 480px
   -------------------------------------------------------------------------- */
@media (min-width: 480px) {
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
  .portfolio-grid { grid-template-columns: repeat(2, 1fr); }
}

/* --------------------------------------------------------------------------
   23. Responsive — 768px (tablet)
   -------------------------------------------------------------------------- */
@media (min-width: 768px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .portfolio-grid { grid-template-columns: repeat(2, 1fr); }

  .navbar__nav  { display: flex; }
  .navbar__cta  { display: flex; }
  .navbar__toggle { display: none; }

  .footer__grid { grid-template-columns: 2fr 1fr 1fr; }

  .footer__bottom { flex-direction: row; justify-content: space-between; text-align: left; }
}

/* --------------------------------------------------------------------------
   24. Responsive — 1024px (desktop)
   -------------------------------------------------------------------------- */
@media (min-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-4 { grid-template-columns: repeat(4, 1fr); }
  .portfolio-grid { grid-template-columns: repeat(3, 1fr); }

  .footer__grid { grid-template-columns: 2fr 1fr 1fr 1fr; }
}

/* --------------------------------------------------------------------------
   25. Miscellaneous
   -------------------------------------------------------------------------- */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.pagination li {
  display: inline-flex;
}

.pagination li a,
.pagination li span {
  min-width: 2.25rem;
  height: 2.25rem;
  padding: 0 0.75rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-sm);
  line-height: 1;
  background: var(--color-white);
  color: var(--color-dark);
  transition: all var(--transition);
}

.pagination li a:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: translateY(-1px);
}

.pagination li.active span {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-white);
  font-weight: 600;
}

.pagination li.disabled span {
  opacity: 0.55;
  cursor: not-allowed;
}

.divider {
  width: 60px;
  height: 4px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  margin: 0.75rem 0 1.5rem;
}
.divider--center { margin-left: auto; margin-right: auto; }

.pill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.75rem;
}
.pill {
  background: var(--color-light-gray);
  color: var(--color-dark);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: 500;
}

.back-to-top {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  width: 44px;
  height: 44px;
  background: var(--color-primary);
  color: white;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  opacity: 0;
  transition: all var(--transition);
  z-index: 900;
}
.back-to-top.visible { opacity: 1; }
.back-to-top:hover { background: var(--color-accent); transform: translateY(-2px); }

/* skeleton loader */
.skeleton {
  background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s infinite;
  border-radius: var(--radius-sm);
}
@keyframes skeleton-loading {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}