/* ============================================================
   STEM Flight TX — style.css
   Design: Navy + Sky Blue + Light Gray | Rajdhani + Inter
   ============================================================ */

/* === TOKENS === */
:root {
  --navy:        #1B2F5B;
  --navy-deep:   #0f1e3d;
  --navy-mid:    #253f75;
  --blue:        #3A7BD5;
  --blue-light:  #5A96E3;
  --blue-pale:   #E8F1FC;
  --gray-bg:     #F2F5FA;
  --gray-line:   #DDE4EF;
  --gray-text:   #374151;
  --white:       #FFFFFF;
  --text-dark:   #111827;
  --text-body:   #2D3748;

  --font-display: 'Rajdhani', sans-serif;
  --font-body:    'Inter', sans-serif;

  --radius:    12px;
  --radius-lg: 20px;
  --shadow:    0 4px 24px rgba(27,47,91,0.10);
  --shadow-lg: 0 12px 48px rgba(27,47,91,0.16);
  --transition: 0.3s cubic-bezier(0.4,0,0.2,1);
}

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

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

body {
  font-family: var(--font-body);
  color: var(--text-body);
  background: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
}

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

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

ul { list-style: none; }

/* === UTILITY === */
.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 96px 0;
}

.section-label {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 12px;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 700;
  color: var(--navy);
  line-height: 1.15;
  margin-bottom: 24px;
}

.section-intro {
  font-size: 1.1rem;
  color: var(--gray-text);
  max-width: 620px;
  margin-bottom: 56px;
  line-height: 1.7;
}

/* === BUTTONS === */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  padding: 14px 32px;
  border-radius: 8px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: var(--blue);
  color: var(--white);
  border-color: var(--blue);
}
.btn-primary:hover {
  background: var(--navy);
  border-color: var(--navy);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(58,123,213,0.35);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,0.5);
}
.btn-outline:hover {
  background: rgba(255,255,255,0.12);
  border-color: var(--white);
  transform: translateY(-2px);
}

.btn-sm {
  font-size: 0.875rem;
  padding: 10px 22px;
}

.btn-full {
  width: 100%;
  justify-content: center;
}

/* Dark-bg outline variant (for involved cards non-featured) */
.involved-card .btn-outline {
  color: var(--navy);
  border-color: var(--gray-line);
}
.involved-card .btn-outline:hover {
  background: var(--blue-pale);
  border-color: var(--blue);
  color: var(--navy);
}

/* === NAVBAR === */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0;

  background: rgba(11, 20, 45, 0.97);
  backdrop-filter: blur(12px);
  box-shadow: 0 2px 24px rgba(0,0,0,0.25);

  transition: background var(--transition), box-shadow var(--transition);
}

.navbar.scrolled {
  background: rgba(11, 20, 45, 0.97);
  backdrop-filter: blur(12px);
  box-shadow: 0 2px 24px rgba(0,0,0,0.25);
}

.nav-inner {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}
.logo-stem    { color: var(--blue-light); }
.logo-flight  { color: var(--white); }
.logo-tx      { color: #8fafd9; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-links a {
  font-family: var(--font-display);
  font-size: 0.975rem;
  font-weight: 500;
  color: rgba(255,255,255,0.8);
  padding: 8px 14px;
  border-radius: 6px;
  letter-spacing: 0.02em;
  transition: color var(--transition), background var(--transition);
}
.nav-links a:hover {
  color: var(--white);
  background: rgba(255,255,255,0.08);
}
.nav-links .nav-cta {
  background: var(--blue);
  color: var(--white);
  padding: 8px 20px;
}
.nav-links .nav-cta:hover {
  background: var(--blue-light);
}

.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.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;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, var(--navy-deep) 0%, var(--navy) 50%, var(--navy-mid) 100%);
  overflow: hidden;
  padding: 120px 24px 80px;
}

/* Subtle dot-grid background */
.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(58,123,213,0.18) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 640px;
  margin-left: max(24px, calc((100vw - 1160px) / 2));
}

.hero-eyebrow {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--blue-light);
  margin-bottom: 16px;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(3.2rem, 8vw, 5.5rem);
  font-weight: 700;
  color: var(--white);
  line-height: 1.0;
  margin-bottom: 0;
  letter-spacing: -0.01em;
}

.title-accent { color: var(--blue-light); }

/* The brand-signature flight-path swoosh */
.hero-swoosh {
  width: 100%;
  max-width: 480px;
  height: 44px;
  margin: 4px 0 12px;
  overflow: visible;
}
.hero-swoosh svg { width: 100%; height: 100%; }

.swoosh-path {
  stroke-dasharray: 700;
  stroke-dashoffset: 700;
  animation: drawPath 1.8s ease-out 0.6s forwards;
}
.swoosh-dot {
  opacity: 0;
  animation: dotAppear 0.3s ease-out 2.2s forwards;
}
@keyframes drawPath {
  to { stroke-dashoffset: 0; }
}
@keyframes dotAppear {
  to { opacity: 1; }
}

.hero-subtitle {
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 2.5vw, 1.6rem);
  font-weight: 500;
  color: rgba(255,255,255,0.75);
  margin-bottom: 20px;
  letter-spacing: 0.01em;
}

.hero-mission {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.65);
  line-height: 1.75;
  max-width: 520px;
  margin-bottom: 40px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* Hero drone illustration (right side) */
.hero-drone-visual {
  position: absolute;
  right: max(32px, calc((100vw - 1160px) / 2));
  top: 50%;
  transform: translateY(-50%);
  width: clamp(200px, 28vw, 380px);
  display: flex;
  align-items: center;
  justify-content: center;
}

.drone-icon {
  animation: droneFloat 4s ease-in-out infinite;
  filter: drop-shadow(0 12px 32px rgba(58,123,213,0.4));
}
.drone-icon svg { width: 100%; }

.rotor {
  transform-origin: center;
  animation: rotorSpin 0.3s linear infinite;
}

@keyframes droneFloat {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-16px); }
}
@keyframes rotorSpin {
  from { transform: rotateY(0deg); }
  to   { transform: rotateY(360deg); }
}

/* Pulse rings under drone */
.pulse-ring {
  position: absolute;
  width: 60%;
  padding-bottom: 60%;
  border-radius: 50%;
  border: 2px solid rgba(58,123,213,0.3);
  animation: pulse 2.5s ease-out infinite;
  pointer-events: none;
  bottom: -20%;
}
@keyframes pulse {
  0%   { transform: scale(0.5); opacity: 0.7; }
  100% { transform: scale(1.8); opacity: 0; }
}

/* Scroll hint arrow */
.scroll-hint {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255,255,255,0.4);
  animation: bounce 2s ease-in-out infinite;
  z-index: 2;
}
.scroll-hint svg { width: 28px; height: 28px; }
@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(8px); }
}

/* === ABOUT SECTION === */
.about {
  background: var(--white);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.about-lead {
  font-size: 1.15rem;
  font-weight: 500;
  color: var(--navy);
  margin-bottom: 20px;
  line-height: 1.7;
}

.about-text p {
  color: var(--gray-text);
  line-height: 1.8;
  margin-bottom: 16px;
}

.about-cards {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.about-card {
  background: var(--gray-bg);
  border: 1px solid var(--gray-line);
  border-radius: var(--radius);
  padding: 24px;
  transition: box-shadow var(--transition), transform var(--transition);
}
.about-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-3px);
}

.about-card-icon {
  font-size: 1.6rem;
  margin-bottom: 10px;
}

.about-card h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 6px;
}

.about-card p {
  font-size: 0.9rem;
  color: var(--gray-text);
  line-height: 1.6;
}

/* === PROGRAMS SECTION === */
.programs {
  background: var(--gray-bg);
}

.programs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.program-card {
  background: var(--white);
  border: 1px solid var(--gray-line);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  transition: box-shadow var(--transition), transform var(--transition);
  position: relative;
  overflow: hidden;
}
.program-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--blue), var(--blue-light));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}
.program-card:hover::before { transform: scaleX(1); }
.program-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-6px);
}

.program-icon {
  width: 56px;
  height: 56px;
  margin-bottom: 20px;
}
.program-icon svg { width: 100%; height: 100%; }

.program-card h3 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 12px;
}

.program-card p {
  font-size: 0.92rem;
  color: var(--gray-text);
  line-height: 1.7;
  margin-bottom: 20px;
}

.program-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.program-tags li {
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  background: var(--blue-pale);
  color: var(--navy);
  padding: 4px 12px;
  border-radius: 20px;
}

/* === IMPACT SECTION === */
.impact {
  background: linear-gradient(135deg, var(--navy-deep) 0%, var(--navy) 100%);
  color: var(--white);
}

.impact .section-label { color: var(--blue-light); }
.impact .section-title { color: var(--white); }

.impact-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.impact-card {
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-lg);
  padding: 40px 24px;
  text-align: center;
  transition: background var(--transition), transform var(--transition);
}
.impact-card:hover {
  background: rgba(58,123,213,0.2);
  transform: translateY(-4px);
}

.impact-number {
  font-family: var(--font-display);
  font-size: clamp(3rem, 5vw, 4.2rem);
  font-weight: 700;
  color: var(--blue-light);
  line-height: 1;
  margin-bottom: 8px;
}

.impact-label {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 8px;
  letter-spacing: 0.02em;
}

.impact-desc {
  font-size: 0.83rem;
  color: rgba(255,255,255,0.5);
  line-height: 1.5;
}

/* === GALLERY SECTION === */
.gallery { background: var(--white); }

.coming-soon-banner {
  background: linear-gradient(135deg, var(--blue-pale), #dde9f9);
  border: 2px dashed var(--blue);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  text-align: center;
  margin-bottom: 40px;
}

.coming-soon-icon { font-size: 2.5rem; margin-bottom: 12px; }

.coming-soon-banner h3 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  color: var(--navy);
  margin-bottom: 8px;
}
.coming-soon-banner p {
  color: var(--gray-text);
  max-width: 480px;
  margin: 0 auto;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: auto auto;
  gap: 16px;
}
.gallery-item--wide { grid-column: span 2; }

.gallery-placeholder {
  background: var(--gray-bg);
  border: 1px solid var(--gray-line);
  border-radius: var(--radius);
  aspect-ratio: 4/3;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  color: var(--gray-text);
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 500;
  transition: background var(--transition), border-color var(--transition);
}
.gallery-item--wide .gallery-placeholder { aspect-ratio: 16/7; }
.gallery-placeholder:hover {
  background: var(--blue-pale);
  border-color: var(--blue);
}
.gallery-ph-icon { font-size: 2rem; }

/* === WHY DRONES === */
.why-drones { background: var(--gray-bg); }

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

.why-card {
  background: var(--white);
  border: 1px solid var(--gray-line);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: box-shadow var(--transition), transform var(--transition);
}
.why-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-4px);
}

.why-icon {
  font-size: 2rem;
  margin-bottom: 16px;
}

.why-card h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 10px;
}

.why-card p {
  font-size: 0.9rem;
  color: var(--gray-text);
  line-height: 1.7;
}

/* === GET INVOLVED === */
.get-involved {
  background: var(--white);
}

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

.involved-card {
  background: var(--gray-bg);
  border: 1px solid var(--gray-line);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: box-shadow var(--transition), transform var(--transition);
}
.involved-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-5px);
}

.involved-card--featured {
  /* Match other involved cards for consistent sponsorship styling */
  background: var(--gray-bg);
  border: 1px solid var(--gray-line);
  color: var(--navy);
}
.involved-card--featured h3,
.involved-card--featured p { color: var(--navy); }
.involved-card--featured p { color: var(--gray-text); }

.involved-num {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--blue);
}
.involved-card--featured .involved-num { color: var(--blue-light); }

.involved-icon { font-size: 2.2rem; }

.involved-card h3 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--navy);
  margin: 0;
}

.involved-card p {
  font-size: 0.92rem;
  color: var(--gray-text);
  line-height: 1.7;
  flex: 1;
}

.coming-soon-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: 0.06em;
  background: rgba(58,123,213,0.2);
  color: var(--blue-light);
  padding: 4px 12px;
  border-radius: 20px;
}

/* === CONTACT SECTION === */
.contact { background: var(--gray-bg); }

.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 64px;
  align-items: start;
}

.contact-info { display: flex; flex-direction: column; gap: 28px; }

.contact-block {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.contact-block-icon {
  font-size: 1.4rem;
  margin-top: 2px;
  flex-shrink: 0;
}

.contact-block h4 {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--navy);
  margin-bottom: 4px;
}

.contact-block p {
  font-size: 0.92rem;
  color: var(--gray-text);
}

.social-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 8px;
}
.social-link {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--navy);
  font-weight: 500;
  transition: color var(--transition);
}
.social-link:hover { color: var(--blue); }
.social-link svg { width: 18px; height: 18px; }
.social-note {
  font-size: 0.8rem;
  color: var(--gray-text);
  font-style: italic;
}

  /* Coming soon state for socials */
  .social-link.coming-soon,
  .coming-soon {
    opacity: 0.75;
    pointer-events: none;
  }

/* Contact Form */
.contact-form-wrap {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow);
}

.contact-form { display: flex; flex-direction: column; gap: 20px; }

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-field label {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--navy);
}

.form-field input,
.form-field select,
.form-field textarea {
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--text-dark);
  background: var(--gray-bg);
  border: 1.5px solid var(--gray-line);
  border-radius: 8px;
  padding: 12px 16px;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  resize: vertical;
}
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(58,123,213,0.15);
  background: var(--white);
}

.form-field input::placeholder,
.form-field textarea::placeholder { color: #aab4c8; }

.form-note {
  font-size: 0.78rem;
  color: var(--gray-text);
  text-align: center;
  margin-top: -8px;
}

/* Form success state */
.form-success {
  text-align: center;
  padding: 40px 20px;
}
.success-icon { font-size: 3rem; margin-bottom: 16px; }
.form-success h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--navy);
  margin-bottom: 8px;
}
.form-success p { color: var(--gray-text); }

/* === FOOTER === */
.footer {
  background: var(--navy-deep);
  color: rgba(255,255,255,0.7);
  padding: 64px 0 0;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.8fr 1fr;
  gap: 64px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-logo {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.footer-tagline {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--blue-light);
  margin-bottom: 14px;
}

.footer-mission-text {
  font-size: 0.9rem;
  line-height: 1.7;
  max-width: 420px;
}

.footer-links {
  display: flex;
  gap: 48px;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col h4 {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--white);
  margin-bottom: 4px;
}

.footer-col a {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.55);
  transition: color var(--transition);
}
.footer-col a:hover { color: var(--blue-light); }

.footer-bottom {
  padding: 24px 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.footer-bottom p {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.35);
}

.footer-disclaimer { font-size: 0.75rem; }

/* === SCROLL ANIMATIONS === */
.fade-in {
  opacity: 0;
  animation: fadeIn 0.9s ease-out 0.3s forwards;
}

.fade-up {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.65s ease-out, transform 0.65s ease-out;
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes fadeIn {
  to { opacity: 1; }
}

/* Stagger children within a grid */
.programs-grid .fade-up:nth-child(2) { transition-delay: 0.1s; }
.programs-grid .fade-up:nth-child(3) { transition-delay: 0.2s; }
.programs-grid .fade-up:nth-child(4) { transition-delay: 0.3s; }

.impact-grid .fade-up:nth-child(2) { transition-delay: 0.1s; }
.impact-grid .fade-up:nth-child(3) { transition-delay: 0.2s; }
.impact-grid .fade-up:nth-child(4) { transition-delay: 0.3s; }

.why-grid .fade-up:nth-child(2) { transition-delay: 0.1s; }
.why-grid .fade-up:nth-child(3) { transition-delay: 0.2s; }
.why-grid .fade-up:nth-child(4) { transition-delay: 0.1s; }
.why-grid .fade-up:nth-child(5) { transition-delay: 0.2s; }
.why-grid .fade-up:nth-child(6) { transition-delay: 0.3s; }

.about-cards .fade-up:nth-child(2) { transition-delay: 0.1s; }
.about-cards .fade-up:nth-child(3) { transition-delay: 0.2s; }

/* === REDUCED MOTION === */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  .swoosh-path { stroke-dashoffset: 0; }
  .swoosh-dot { opacity: 1; }
}

/* === RESPONSIVE === */

/* Tablet */
@media (max-width: 1024px) {
  .hero-drone-visual { display: none; }
  .hero-content {
    max-width: 100%;
    margin-left: 0;
  }
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .impact-grid { grid-template-columns: repeat(2, 1fr); }
  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .involved-grid { grid-template-columns: 1fr; max-width: 560px; margin: 0 auto; }
  .contact-layout { grid-template-columns: 1fr; gap: 40px; }
  .footer-top { grid-template-columns: 1fr; gap: 40px; }
}

/* Mobile */
@media (max-width: 700px) {
  .section { padding: 72px 0; }
  .section-title { font-size: 1.8rem; }

  .hamburger { display: flex; }

  .nav-links {
    display: none;
    position: fixed;
    top: 68px; left: 0; right: 0;
    background: rgba(11,20,45,0.98);
    backdrop-filter: blur(16px);
    flex-direction: column;
    padding: 24px;
    gap: 4px;
    border-top: 1px solid rgba(255,255,255,0.08);
  }navbar
  .nav-links.open { display: flex; }
  .nav-links a {
    padding: 14px 16px;
    font-size: 1.1rem;
    width: 100%;
  }
  .nav-links .nav-cta { text-align: center; margin-top: 8px; }

  .hero { padding: 110px 24px 80px; }
  .hero-title { font-size: 3rem; }

  .programs-grid { grid-template-columns: 1fr; }
  .impact-grid { grid-template-columns: repeat(2, 1fr); }
  .why-grid { grid-template-columns: 1fr; }

  .gallery-grid {
    grid-template-columns: 1fr;
  }
  .gallery-item--wide { grid-column: span 1; }

  .form-row { grid-template-columns: 1fr; }
  .contact-form-wrap { padding: 28px 20px; }

  .footer-links { flex-direction: column; gap: 28px; }

  .hero-actions { flex-direction: column; }
  .hero-actions .btn { text-align: center; justify-content: center; }
}

@media (max-width: 480px) {
  .impact-grid { grid-template-columns: 1fr; }
}