/* ============================================================
   NADIREX INTERNATIONAL - Design System
   Palette: Blue #326AAE · Red #E40505
   Style:  Apple-inspired corporate, light mode only
   ============================================================ */

/* ---------- Base & Tokens ---------- */
:root {
  --brand:       #326AAE;
  --brand-dark:  #1b3f6b;
  --brand-light: #4a8ad4;
  --accent:      #D33A2F;
  --accent-glow: rgba(211, 58, 47, .25);
  --ease-out-expo: cubic-bezier(.16, 1, .3, 1);
  --ease-spring:  cubic-bezier(.34, 1.56, .64, 1);
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

::selection {
  background: rgba(50, 106, 174, .14);
  color: #1b3f6b;
}

body {
  overflow-x: hidden;
}

/* ---------- Navbar ---------- */
.nav-link {
  position: relative;
  padding: .5rem .875rem;
  font-size: .9375rem;
  font-weight: 600;
  color: rgba(255,255,255,.85);
  border-radius: .5rem;
  transition: color .3s, background .3s;
  text-decoration: none;
  letter-spacing: -.01em;
}
.nav-link:hover {
  color: #fff;
  background: rgba(255,255,255,.1);
}
.nav-link.active {
  color: #fff;
}
.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: .875rem;
  right: .875rem;
  height: 2px;
  background: #fff;
  border-radius: 1px;
  opacity: .6;
}

.nav-link-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: .5rem 1.25rem;
  font-size: .875rem;
  font-weight: 600;
  color: #fff;
  border: 1.5px solid rgba(255,255,255,.35);
  border-radius: .75rem;
  text-decoration: none;
  transition: background .3s, border-color .3s, color .3s;
}
.nav-link-cta:hover {
  background: rgba(255,255,255,.12);
  border-color: rgba(255,255,255,.55);
}
.nav-link-cta.active {
  background: rgba(255,255,255,.15);
  border-color: rgba(255,255,255,.6);
}
#navbar.nav-scrolled .nav-link-cta {
  color: var(--brand);
  border-color: var(--brand);
}
#navbar.nav-scrolled .nav-link-cta:hover {
  background: rgba(50,106,174,.06);
}
#navbar.nav-scrolled .nav-link-cta.active {
  background: rgba(50,106,174,.1);
  border-color: var(--brand);
}

/* Scrolled state */
#navbar.nav-scrolled {
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  box-shadow: 0 1px 0 rgba(0,0,0,.06), 0 4px 20px rgba(0,0,0,.04);
  border-color: transparent;
}
#navbar.nav-scrolled .nav-link {
  color: #374151;
}
#navbar.nav-scrolled .nav-link:hover {
  color: var(--brand);
  background: rgba(50,106,174,.06);
}
#navbar.nav-scrolled .nav-link.active {
  color: var(--brand);
}
#navbar.nav-scrolled .nav-link.active::after {
  background: var(--brand);
  opacity: .8;
}
/* Logo swap: dark-bg variant visible by default, light-bg on scroll */
.nav-logo-light { display: none; }
.nav-logo-dark  { display: block; }
#navbar.nav-scrolled .nav-logo-light { display: block; }
#navbar.nav-scrolled .nav-logo-dark  { display: none; }
#navbar.nav-scrolled .hamburger-line {
  background-color: #374151 !important;
}
#navbar.nav-scrolled #mobile-menu-btn i,
#navbar.nav-scrolled #mobile-menu-btn svg {
  color: #374151 !important;
  stroke: #374151 !important;
}

/* ---------- Drawer (Mobile Menu) ---------- */
#drawer-backdrop {
  position: fixed;
  inset: 0;
  z-index: 40;
  background: rgba(0,0,0,.35);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  opacity: 0;
  pointer-events: none;
  transition: opacity .35s ease;
}
#drawer-panel {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  z-index: 50;
  width: 320px;
  max-width: 85vw;
  background: #fff;
  box-shadow: -8px 0 40px rgba(0,0,0,.10);
  transform: translateX(100%);
  transition: transform .45s var(--ease-out-expo);
  display: flex;
  flex-direction: column;
}
body.drawer-open {
  overflow: hidden;
}
body.drawer-open #drawer-backdrop {
  opacity: 1;
  pointer-events: auto;
}
body.drawer-open #drawer-panel {
  transform: translateX(0);
}

.drawer-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: .875rem 0;
  font-size: 1.05rem;
  font-weight: 500;
  color: #374151;
  border-bottom: 1px solid #f3f4f6;
  text-decoration: none;
  transition: color .2s, padding-left .3s;
}
.drawer-link:hover {
  color: var(--brand);
  padding-left: .5rem;
}
.drawer-link::after {
  content: '';
  width: 6px;
  height: 6px;
  border-right: 1.5px solid #d1d5db;
  border-bottom: 1.5px solid #d1d5db;
  transform: rotate(-45deg);
  transition: border-color .2s, transform .2s;
  flex-shrink: 0;
}
.drawer-link:hover::after {
  border-color: var(--brand);
  transform: rotate(-45deg) translate(2px, -2px);
}

/* ---------- Scroll Reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity .8s var(--ease-out-expo),
              transform .8s var(--ease-out-expo);
}
.reveal.reveal-left  { transform: translateX(-40px); }
.reveal.reveal-right { transform: translateX(40px); }
.reveal.reveal-scale { transform: scale(.95); }
.reveal.active {
  opacity: 1;
  transform: translate(0) scale(1);
}

/* Stagger children */
.reveal-stagger > .reveal:nth-child(1) { transition-delay:   0ms; }
.reveal-stagger > .reveal:nth-child(2) { transition-delay: 100ms; }
.reveal-stagger > .reveal:nth-child(3) { transition-delay: 200ms; }
.reveal-stagger > .reveal:nth-child(4) { transition-delay: 300ms; }
.reveal-stagger > .reveal:nth-child(5) { transition-delay: 400ms; }

/* ---------- Hero ---------- */
.hero-gradient {
  background: linear-gradient(135deg,
    rgba(11, 32, 62, .96) 0%,
    rgba(22, 52, 92, .94) 30%,
    rgba(30, 65, 112, .92) 60%,
    rgba(11, 32, 62, .96) 100%);
  background-size: 160% 160%;
  animation: gradient-drift 25s ease infinite;
}

@keyframes gradient-drift {
  0%, 100% { background-position: 0% 50%; }
  50%      { background-position: 100% 50%; }
}

/* Hero orbs - soft ambient glow */
@keyframes orb-float {
  0%, 100% { transform: translateY(0) scale(1); }
  50%      { transform: translateY(-25px) scale(1.05); }
}
@keyframes orb-float-reverse {
  0%, 100% { transform: translateY(0) scale(1); }
  50%      { transform: translateY(20px) scale(.96); }
}

.hero-orb-1 { animation: orb-float 8s ease-in-out infinite; }
.hero-orb-2 { animation: orb-float-reverse 10s ease-in-out infinite; }
.hero-orb-3 { animation: orb-float 13s ease-in-out 2s infinite; }

/* Floating micro-elements (dots, lines, circles) */
@keyframes drift-a {
  0%, 100% { transform: translate(0, 0); opacity: .6; }
  25%      { transform: translate(30px, -35px); opacity: 1; }
  50%      { transform: translate(10px, -50px); opacity: .7; }
  75%      { transform: translate(-20px, -15px); opacity: .9; }
}
@keyframes drift-b {
  0%, 100% { transform: translate(0, 0) rotate(25deg); opacity: .5; }
  25%      { transform: translate(-25px, 30px) rotate(35deg); opacity: .9; }
  50%      { transform: translate(-40px, 10px) rotate(15deg); opacity: .6; }
  75%      { transform: translate(-10px, 25px) rotate(30deg); opacity: 1; }
}
@keyframes drift-c {
  0%, 100% { transform: translate(0, 0) scale(1); opacity: .5; }
  25%      { transform: translate(-30px, -20px) scale(1.3); opacity: 1; }
  50%      { transform: translate(20px, -35px) scale(.8); opacity: .7; }
  75%      { transform: translate(35px, 10px) scale(1.1); opacity: .9; }
}

.float-a  { animation: drift-a 10s ease-in-out infinite; }
.float-b  { animation: drift-b 13s ease-in-out infinite; }
.float-c  { animation: drift-c 11s ease-in-out infinite; }
.float-a2 { animation: drift-a 14s ease-in-out 3s infinite; }
.float-b2 { animation: drift-b 9s ease-in-out 5s infinite; }
.float-c2 { animation: drift-c 15s ease-in-out 1s infinite; }

/* Scroll indicator */
@keyframes scroll-bounce {
  0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
  40%  { transform: translateY(6px); }
  60%  { transform: translateY(3px); }
}
.scroll-indicator-dot {
  animation: scroll-bounce 2s ease infinite;
}

/* Hero parallax image */
.hero-parallax-img {
  will-change: transform;
  transform: scale(1.15);
}

/* ---------- Service Cards ---------- */
.service-card {
  position: relative;
  background: #fff;
  border: 1px solid #f3f4f6;
  border-radius: 1.25rem;
  padding: 2rem;
  transition: transform .5s var(--ease-out-expo),
              box-shadow .5s var(--ease-out-expo),
              border-color .3s;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--brand), var(--brand-light));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .5s var(--ease-out-expo);
}
.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(50,106,174,.10),
              0 2px 8px rgba(0,0,0,.04);
  border-color: rgba(50,106,174,.15);
}
.service-card:hover::before { transform: scaleX(1); }

.service-card .card-icon {
  transition: transform .4s var(--ease-spring), background .3s;
}
.service-card:hover .card-icon {
  transform: scale(1.08);
  background: var(--brand) !important;
}
.service-card:hover .card-icon i,
.service-card:hover .card-icon svg {
  color: #fff !important;
  stroke: #fff !important;
}
.service-card .card-arrow {
  opacity: 0;
  transform: translateX(-8px);
  transition: opacity .3s, transform .3s var(--ease-out-expo);
}
.service-card:hover .card-arrow {
  opacity: 1;
  transform: translateX(0);
}

/* ---------- Credential Numbers ---------- */
.credential-number {
  font-variant-numeric: tabular-nums;
  line-height: 1;
}

/* ---------- CTA Section ---------- */
.cta-section {
  background:
    radial-gradient(ellipse at 20% 80%, rgba(74,138,212,.12) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(228,5,5,.05) 0%, transparent 50%),
    linear-gradient(135deg, #f8fafc, #eef2f7);
}

/* ---------- Buttons ---------- */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  padding: .875rem 2rem;
  font-size: .9375rem;
  font-weight: 600;
  color: #fff;
  background: var(--accent);
  border-radius: .875rem;
  text-decoration: none;
  transition: all .3s var(--ease-out-expo);
  box-shadow: 0 2px 12px var(--accent-glow);
  letter-spacing: -.01em;
}
.btn-primary:hover {
  background: #b83026;
  transform: translateY(-2px);
  box-shadow: 0 6px 24px var(--accent-glow);
}

/* White CTA for dark backgrounds (hero) */
.btn-hero {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  padding: .875rem 2rem;
  font-size: .9375rem;
  font-weight: 600;
  color: var(--brand-dark);
  background: #fff;
  border-radius: .875rem;
  text-decoration: none;
  transition: all .3s var(--ease-out-expo);
  box-shadow: 0 4px 20px rgba(255,255,255,.15);
  letter-spacing: -.01em;
}
.btn-hero:hover {
  background: #f0f6ff;
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(255,255,255,.20);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  padding: .875rem 2rem;
  font-size: .9375rem;
  font-weight: 600;
  color: var(--brand);
  background: transparent;
  border: 1.5px solid rgba(50,106,174,.2);
  border-radius: .875rem;
  text-decoration: none;
  transition: all .3s var(--ease-out-expo);
  letter-spacing: -.01em;
}
.btn-secondary:hover {
  background: rgba(50,106,174,.06);
  border-color: rgba(50,106,174,.35);
  transform: translateY(-1px);
}

.btn-white {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  padding: .875rem 2rem;
  font-size: .9375rem;
  font-weight: 600;
  color: #fff;
  background: rgba(255,255,255,.12);
  backdrop-filter: blur(8px);
  border: 1.5px solid rgba(255,255,255,.2);
  border-radius: .875rem;
  text-decoration: none;
  transition: all .3s var(--ease-out-expo);
  letter-spacing: -.01em;
}
.btn-white:hover {
  background: rgba(255,255,255,.22);
  border-color: rgba(255,255,255,.35);
  transform: translateY(-1px);
}

/* ---------- Image Treatment ---------- */
.img-reveal {
  overflow: hidden;
  border-radius: 1.25rem;
}
.img-reveal img {
  transition: transform .8s var(--ease-out-expo);
}
.img-reveal:hover img {
  transform: scale(1.03);
}

/* ---------- Grain Overlay ---------- */
.grain::after {
  content: '';
  position: absolute;
  inset: 0;
  opacity: .025;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 180px;
}

/* ---------- Overline ---------- */
.overline {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--brand);
}
.overline::before {
  content: '';
  width: 1.5rem;
  height: 2px;
  background: var(--accent);
  border-radius: 1px;
}

/* ---------- Section Spacing ---------- */
.section-padding {
  padding-top: 6rem;
  padding-bottom: 6rem;
}
@media (min-width: 1024px) {
  .section-padding {
    padding-top: 8rem;
    padding-bottom: 8rem;
  }
}

/* ---------- Parallax images on scroll ---------- */
.parallax-img {
  will-change: transform;
  transition: transform .1s linear;
}

/* ---------- Scrollbar (desktop) ---------- */
@media (min-width: 1024px) {
  ::-webkit-scrollbar       { width: 8px; }
  ::-webkit-scrollbar-track  { background: #f8fafc; }
  ::-webkit-scrollbar-thumb  { background: #cbd5e1; border-radius: 999px; }
  ::-webkit-scrollbar-thumb:hover { background: #94a3b8; }
}

/* ---------- Event Cards ---------- */
.event-card {
  position: relative;
  background: #fff;
  border: 1px solid #f3f4f6;
  border-radius: 1.25rem;
  overflow: hidden;
  transition: transform .5s var(--ease-out-expo),
              box-shadow .5s var(--ease-out-expo),
              border-color .3s;
}
.event-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--brand), var(--brand-light));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .5s var(--ease-out-expo);
  z-index: 1;
}
.event-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(50,106,174,.10),
              0 2px 8px rgba(0,0,0,.04);
  border-color: rgba(50,106,174,.15);
}
.event-card:hover::before { transform: scaleX(1); }

/* ---------- Filter Controls ---------- */
.filter-select {
  appearance: none;
  padding: .625rem 2.25rem .625rem .875rem;
  font-size: .875rem;
  font-weight: 500;
  color: #374151;
  background: #f9fafb;
  border: 1px solid #e5e7eb;
  border-radius: .75rem;
  transition: border-color .2s, box-shadow .2s;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%239ca3af' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right .75rem center;
  min-width: 160px;
}
.filter-select:focus {
  outline: none;
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(50,106,174,.1);
}
.filter-input {
  padding: .625rem .875rem;
  font-size: .875rem;
  color: #374151;
  background: #f9fafb;
  border: 1px solid #e5e7eb;
  border-radius: .75rem;
  transition: border-color .2s, box-shadow .2s;
}
.filter-input:focus {
  outline: none;
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(50,106,174,.1);
}
.filter-input::placeholder { color: #9ca3af; }

/* ---------- Pagination ---------- */
.pagination-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.5rem;
  height: 2.5rem;
  padding: 0 .75rem;
  font-size: .875rem;
  font-weight: 600;
  color: #6b7280;
  background: #fff;
  border: 1px solid #e5e7eb;
  border-radius: .75rem;
  text-decoration: none;
  transition: all .2s;
}
.pagination-btn:hover {
  color: var(--brand);
  border-color: var(--brand);
  background: rgba(50,106,174,.04);
}
.pagination-active {
  color: #fff !important;
  background: var(--brand) !important;
  border-color: var(--brand) !important;
}

/* ---------- Line Clamp ---------- */
.line-clamp-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.line-clamp-3 {
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ---------- Contact Cards ---------- */
.contact-card {
  background: #fff;
  border: 1px solid #f3f4f6;
  border-radius: 1rem;
  padding: 1.25rem;
  transition: transform .5s var(--ease-out-expo),
              box-shadow .5s var(--ease-out-expo),
              border-color .3s;
}
.contact-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(50,106,174,.08),
              0 1px 4px rgba(0,0,0,.03);
  border-color: rgba(50,106,174,.15);
}

/* ---------- Utility ---------- */
.text-balance { text-wrap: balance; }