/* ═══════════════════════════════════════════════════════════════
   IICEST — International Institute of Chartered Engineers,
   Scientists and Technologists
   style.css — Main Stylesheet
   Design: Precision Engineering | Navy + Cyan | Oswald + Lora
═══════════════════════════════════════════════════════════════ */

/* ─── CSS VARIABLES ─────────────────────────────────────────── */
:root {
  /* Brand Colors */
  --primary:       #19A7CE;
  --primary-dark:  #0D6E8A;
  --primary-light: #5DC8E5;
  --secondary:     #A8B5C2;
  --accent:        #0D1B2A;
  --accent-mid:    #1A2E42;

  /* Neutrals */
  --white:         #FFFFFF;
  --off-white:     #F4F7FA;
  --light-gray:    #E8EDF2;
  --mid-gray:      #9AACBA;
  --dark-gray:     #3D5166;
  --near-black:    #0A1520;

  /* Section Backgrounds */
  --bg-white:      #FFFFFF;
  --bg-tinted:     #F0F5F9;
  --bg-dark:       #0D1B2A;
  --bg-dark-mid:   #12243A;

  /* Typography */
  --font-display:  'Oswald', sans-serif;
  --font-body:     'Lora', serif;
  --font-mono:     'Roboto Mono', monospace;

  /* Spacing */
  --section-pad:   100px;
  --container-max: 1200px;
  --gutter:        clamp(16px, 4vw, 40px);

  /* Transitions */
  --ease:          cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-bounce:   cubic-bezier(0.34, 1.56, 0.64, 1);
  --dur:           0.35s;
  --dur-slow:      0.65s;

  /* Shadows */
  --shadow-sm:     0 2px 12px rgba(13, 27, 42, 0.08);
  --shadow-md:     0 8px 32px rgba(13, 27, 42, 0.12);
  --shadow-lg:     0 20px 60px rgba(13, 27, 42, 0.18);
  --shadow-cyan:   0 8px 32px rgba(25, 167, 206, 0.25);

  /* Border radius */
  --radius-sm:     6px;
  --radius-md:     12px;
  --radius-lg:     20px;
  --radius-xl:     32px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: clamp(15px, 1.05vw, 17px);
  line-height: 1.75;
  color: var(--accent);
  background: var(--bg-white);
  overflow-x: hidden;
}

.logo-mark img {
  width: 42px;
  height: 42px;
  object-fit: cover;
  border-radius: 50%;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { border: none; background: none; cursor: pointer; font: inherit; }

/* ─── TYPOGRAPHY ────────────────────────────────────────────── */
.section-heading {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 600;
  letter-spacing: 0.03em;
  line-height: 1.15;
  text-transform: uppercase;
  color: var(--accent);
}

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

.section-label {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--primary);
  padding: 5px 14px;
  border: 1px solid rgba(25, 167, 206, 0.4);
  border-radius: 100px;
  margin-bottom: 16px;
}
.section-label.light { color: var(--primary-light); border-color: rgba(93, 200, 229, 0.35); }

.section-subtitle {
  font-size: clamp(1rem, 1.2vw, 1.1rem);
  color: var(--dark-gray);
  max-width: 620px;
  margin-top: 12px;
}
.section-subtitle.light { color: var(--secondary); }

.text-accent { color: var(--primary); }

.section-header {
  text-align: center;
  margin-bottom: 64px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* ─── LAYOUT ────────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.section {
  padding: var(--section-pad) 0;
}

.section-dark  { background: var(--bg-dark); }
.section-tinted { background: var(--bg-tinted); }

/* ─── NAVBAR ────────────────────────────────────────────────── */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: transparent;
  transition: background var(--dur) var(--ease),
              box-shadow var(--dur) var(--ease),
              padding var(--dur) var(--ease);
  padding: 20px 0;
}

.navbar.scrolled {
  background: rgba(10, 21, 32, 0.97);
  box-shadow: 0 2px 40px rgba(0,0,0,0.35);
  padding: 12px 0;
  backdrop-filter: blur(12px);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--gutter);
  gap: 24px;
}

/* Logo */
.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
  text-decoration: none;
}

.logo-mark svg {
  width: 42px;
  height: 42px;
  transition: transform var(--dur) var(--ease-bounce);
}
.nav-logo:hover .logo-mark svg { transform: rotate(15deg) scale(1.05); }

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}
.logo-acronym {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--white);
}
.logo-tagline {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.14em;
  color: var(--primary-light);
  text-transform: uppercase;
}

/* Nav links */
.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-link {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.75);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: color var(--dur) var(--ease),
              background var(--dur) var(--ease);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 4px; left: 14px;
  width: 0; height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transition: width var(--dur) var(--ease);
}

.nav-link:hover,
.nav-link.active {
  color: var(--white);
}
.nav-link:hover::after,
.nav-link.active::after { width: calc(100% - 28px); }

/* CTA button */
.btn-nav-cta {
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--primary);
  padding: 10px 22px;
  border-radius: var(--radius-sm);
  transition: background var(--dur) var(--ease), transform var(--dur) var(--ease-bounce);
}
.btn-nav-cta:hover {
  background: var(--primary-light);
  transform: translateY(-2px);
}

/* Nav actions */
.nav-actions { display: flex; align-items: center; gap: 12px; }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 8px;
  border-radius: var(--radius-sm);
}
.hamburger span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--white);
  border-radius: 2px;
  transition: transform 0.3s var(--ease), opacity 0.3s, width 0.3s;
  transform-origin: center;
}
.hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; width: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ─── BUTTONS ───────────────────────────────────────────────── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--primary);
  padding: 14px 32px;
  border-radius: var(--radius-sm);
  border: 2px solid var(--primary);
  transition: all var(--dur) var(--ease);
  position: relative;
  overflow: hidden;
}
.btn-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--primary-light);
  transform: translateX(-100%);
  transition: transform 0.4s var(--ease);
  z-index: 0;
}
.btn-primary:hover::before { transform: translateX(0); }
.btn-primary > * { position: relative; z-index: 1; }
.btn-primary:hover { transform: translateY(-2px); box-shadow: var(--shadow-cyan); }

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--white);
  background: transparent;
  padding: 14px 32px;
  border-radius: var(--radius-sm);
  border: 2px solid rgba(255,255,255,0.35);
  transition: all var(--dur) var(--ease);
}
.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-2px);
}

/* ─── HERO ──────────────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-dark);
  overflow: hidden;
}

/* Animated background */
.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(25, 167, 206, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(25, 167, 206, 0.07) 1px, transparent 1px);
  background-size: 60px 60px;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  animation: orbFloat 12s ease-in-out infinite;
}
.orb-1 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(25, 167, 206, 0.18), transparent 70%);
  top: -120px; left: -100px;
}
.orb-2 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(13, 110, 138, 0.22), transparent 70%);
  bottom: -80px; right: -80px;
  animation-delay: -6s;
  animation-direction: reverse;
}

@keyframes orbFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -40px) scale(1.05); }
  66% { transform: translate(-20px, 25px) scale(0.97); }
}

.circuit-lines {
  position: absolute;
  inset: 0;
  opacity: 0.6;
}
.circuit-lines svg { width: 100%; height: 100%; }

/* Hero content */
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 860px;
  text-align: center;
  padding: 120px var(--gutter) 80px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--primary-light);
  border: 1px solid rgba(25, 167, 206, 0.3);
  padding: 8px 18px;
  border-radius: 100px;
  background: rgba(25, 167, 206, 0.08);
  margin-bottom: 28px;
}

.badge-dot {
  width: 7px; height: 7px;
  background: var(--primary);
  border-radius: 50%;
  animation: blink 2s ease-in-out infinite;
}
@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 6vw, 5rem);
  font-weight: 700;
  letter-spacing: 0.03em;
  line-height: 1.08;
  color: var(--white);
  text-transform: uppercase;
  margin-bottom: 24px;
}

.headline-accent {
  color: var(--primary);
  position: relative;
}
.headline-accent::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--primary-light), transparent);
  border-radius: 2px;
}

.hero-subtitle {
  font-size: clamp(1rem, 1.4vw, 1.2rem);
  color: var(--secondary);
  max-width: 640px;
  margin: 0 auto 40px;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 60px;
}

/* Stats bar */
.hero-stats {
  display: inline-flex;
  align-items: center;
  gap: 0;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  padding: 20px 40px;
  backdrop-filter: blur(10px);
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0 32px;
}
.stat-number {
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--primary);
  line-height: 1;
}
.stat-plus {
  font-family: var(--font-display);
  font-size: 1.4rem;
  color: var(--primary);
}
.stat-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--mid-gray);
  margin-top: 4px;
}
.stat-divider {
  width: 1px;
  height: 48px;
  background: rgba(255,255,255,0.12);
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--mid-gray);
  font-size: 1.2rem;
  animation: scrollBounce 2s ease-in-out infinite;
}
.scroll-line {
  width: 1px;
  height: 36px;
  background: linear-gradient(to bottom, transparent, var(--primary));
}
@keyframes scrollBounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* ─── ABOUT ─────────────────────────────────────────────────── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 80px;
  align-items: center;
}

.about-visual {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}

.about-img-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 1;
  max-width: 380px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.about-emblem {
  width: 100%;
  animation: rotateSlow 30s linear infinite;
}
.about-emblem svg { width: 100%; height: 100%; }

@keyframes rotateSlow {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.about-metrics {
  display: flex;
  gap: 12px;
}

.metric-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 16px 20px;
  background: var(--bg-tinted);
  border: 1px solid var(--light-gray);
  border-radius: var(--radius-md);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--dark-gray);
  transition: all var(--dur) var(--ease);
}
.metric-card i {
  font-size: 1.4rem;
  color: var(--primary);
}
.metric-card:hover {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
  transform: translateY(-4px);
  box-shadow: var(--shadow-cyan);
}
.metric-card:hover i { color: var(--white); }

/* About content */
.about-lead {
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--accent);
  margin-bottom: 16px;
  line-height: 1.7;
}

.about-content p { color: var(--dark-gray); margin-bottom: 16px; }
.about-content .btn-primary { margin-top: 8px; }

.about-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin: 24px 0 28px;
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--dark-gray);
}
.feature-item i {
  color: var(--primary);
  font-size: 1.1rem;
  flex-shrink: 0;
  margin-top: 2px;
}

/* ─── TECHNOLOGY FOCUS ──────────────────────────────────────── */
.tech-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.tech-card {
  position: relative;
  padding: 36px 28px;
  background: var(--bg-dark-mid);
  border: 1px solid rgba(255,255,255,0.05);
  transition: background var(--dur) var(--ease), transform var(--dur) var(--ease);
  cursor: default;
  overflow: hidden;
}
.tech-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(25,167,206,0.12), transparent);
  opacity: 0;
  transition: opacity var(--dur) var(--ease);
}
.tech-card:hover { background: rgba(25, 167, 206, 0.06); }
.tech-card:hover::before { opacity: 1; }

.tech-icon {
  width: 52px; height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(25, 167, 206, 0.12);
  border: 1px solid rgba(25, 167, 206, 0.2);
  border-radius: var(--radius-sm);
  margin-bottom: 18px;
  transition: all var(--dur) var(--ease);
}
.tech-icon i {
  font-size: 1.5rem;
  color: var(--primary);
}
.tech-card:hover .tech-icon {
  background: var(--primary);
  border-color: var(--primary);
}
.tech-card:hover .tech-icon i { color: var(--accent); }

.tech-card h3 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--white);
  margin-bottom: 10px;
  line-height: 1.3;
}

.tech-card p {
  font-size: 0.88rem;
  color: var(--secondary);
  line-height: 1.65;
}

.tech-card-line {
  position: absolute;
  bottom: 0; left: 0;
  width: 0; height: 2px;
  background: var(--primary);
  transition: width 0.5s var(--ease);
}
.tech-card:hover .tech-card-line { width: 100%; }

/* ─── AIMS & OBJECTIVES ─────────────────────────────────────── */
.aims-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
}

.aim-card {
  position: relative;
  padding: 36px 24px 28px;
  background: var(--bg-white);
  border: 1px solid var(--light-gray);
  border-radius: var(--radius-md);
  transition: all var(--dur) var(--ease);
  overflow: hidden;
}
.aim-card::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s var(--ease);
}
.aim-card:hover {
  border-color: rgba(25, 167, 206, 0.3);
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}
.aim-card:hover::after { transform: scaleX(1); }

.aim-number {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 700;
  color: var(--light-gray);
  line-height: 1;
  margin-bottom: 8px;
  transition: color var(--dur) var(--ease);
}
.aim-card:hover .aim-number { color: rgba(25, 167, 206, 0.15); }

.aim-icon {
  width: 44px; height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(25, 167, 206, 0.08);
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
  transition: all var(--dur) var(--ease);
}
.aim-icon i {
  font-size: 1.3rem;
  color: var(--primary);
}
.aim-card:hover .aim-icon {
  background: var(--primary);
}
.aim-card:hover .aim-icon i { color: var(--white); }

.aim-card h3 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 10px;
}

.aim-card p {
  font-size: 0.88rem;
  color: var(--dark-gray);
  line-height: 1.65;
}

/* ─── MISSION & VISION ──────────────────────────────────────── */
.mv-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.mv-card {
  position: relative;
  padding: 52px 44px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.mv-card:hover {
  border-color: rgba(25, 167, 206, 0.4);
  transform: translateY(-4px);
}

.mv-icon-wrap {
  width: 64px; height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(25, 167, 206, 0.12);
  border: 1px solid rgba(25, 167, 206, 0.25);
  border-radius: var(--radius-md);
  margin-bottom: 24px;
  font-size: 1.8rem;
  color: var(--primary);
}

.mv-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--primary-light);
  margin-bottom: 12px;
}

.mv-card h3 {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--white);
  margin-bottom: 20px;
}

.mv-card p {
  font-size: 1rem;
  color: var(--secondary);
  line-height: 1.8;
}

.mv-decoration {
  position: absolute;
  bottom: -40px; left: -40px;
  width: 180px; height: 180px;
  border: 1px solid rgba(25, 167, 206, 0.12);
  border-radius: 50%;
  pointer-events: none;
}
.mv-decoration--right {
  bottom: -40px; left: auto; right: -40px;
}
.mv-card--vision {
  background: rgba(25, 167, 206, 0.04);
}

/* ─── MEMBERSHIP ────────────────────────────────────────────── */
.membership-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.member-card {
  position: relative;
  padding: 32px 24px;
  background: var(--bg-white);
  border: 1px solid var(--light-gray);
  border-radius: var(--radius-md);
  transition: all var(--dur) var(--ease);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.member-card:hover {
  border-color: var(--primary);
  transform: translateY(-8px);
  box-shadow: var(--shadow-md);
}

.member-card--featured {
  background: var(--accent);
  border-color: var(--primary);
}
.member-card--featured h3,
.member-card--featured p { color: var(--secondary); }
.member-card--featured h3 { color: var(--white); }

.featured-ribbon {
  position: absolute;
  top: 18px; right: -24px;
  background: var(--primary);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 5px 28px;
  transform: rotate(45deg);
}

.member-badge {
  width: 52px; height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(25, 167, 206, 0.1);
  border-radius: var(--radius-sm);
  font-size: 1.4rem;
  color: var(--primary);
  margin-bottom: 16px;
  transition: all var(--dur) var(--ease);
}
.member-card:hover .member-badge,
.member-card--featured .member-badge {
  background: var(--primary);
  color: var(--accent);
}

.member-tier {
  font-family: var(--font-mono);
  font-size: 0.67rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 6px;
}
.member-card--featured .member-tier { color: var(--primary-light); }

.member-card h3 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 10px;
}

.member-card p {
  font-size: 0.88rem;
  color: var(--dark-gray);
  line-height: 1.6;
  flex: 1;
}

.member-price {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary);
  margin: 20px 0 20px;
  line-height: 1;
}
.member-price span {
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--mid-gray);
  letter-spacing: 0.08em;
}

.btn-member {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--primary);
  background: transparent;
  border: 1.5px solid var(--primary);
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  transition: all var(--dur) var(--ease);
}
.btn-member:hover {
  background: var(--primary);
  color: var(--accent);
  transform: translateY(-2px);
}

.btn-member--featured {
  background: var(--primary);
  color: var(--accent);
}
.btn-member--featured:hover {
  background: var(--primary-light);
  border-color: var(--primary-light);
}

/* ─── FEES ──────────────────────────────────────────────────── */
.fees-block {
  background: var(--bg-white);
  border: 1px solid var(--light-gray);
  border-radius: var(--radius-lg);
  padding: 36px 40px;
  margin-bottom: 32px;
}

.fees-block-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--light-gray);
}
.fees-block-title i { color: var(--primary); font-size: 1.3rem; }

.form-fees-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-fee-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  background: var(--bg-tinted);
  border: 1px solid var(--light-gray);
  border-radius: var(--radius-md);
  transition: all var(--dur) var(--ease);
}
.form-fee-item:hover {
  border-color: var(--primary);
  background: rgba(25, 167, 206, 0.04);
}

.form-fee-label {
  font-size: 0.95rem;
  color: var(--dark-gray);
}
.form-fee-price {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--primary);
}

.fees-table-wrap {
  background: var(--bg-white);
  border: 1px solid var(--light-gray);
  border-radius: var(--radius-lg);
  padding: 36px 40px;
}

.fees-table { display: flex; flex-direction: column; gap: 0; }

.fee-row {
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 20px;
  padding: 16px 20px;
  border-radius: var(--radius-sm);
  transition: background var(--dur) var(--ease);
}
.fee-row:not(.fee-row--header):hover { background: var(--bg-tinted); }

.fee-row--header {
  background: var(--accent);
  color: var(--white);
  border-radius: var(--radius-sm);
  margin-bottom: 6px;
  font-family: var(--font-display);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.fee-row:not(.fee-row--header) span:first-child {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.95rem;
  color: var(--dark-gray);
}
.fee-row:not(.fee-row--header) span:first-child i { color: var(--primary); }

.fee-amount {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--primary);
  min-width: 80px;
  text-align: right;
}

.fee-btn {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--primary);
  border: 1.5px solid var(--primary);
  padding: 7px 18px;
  border-radius: var(--radius-sm);
  transition: all var(--dur) var(--ease);
  white-space: nowrap;
}
.fee-btn:hover {
  background: var(--primary);
  color: var(--accent);
}
.fee-btn--corp {
  background: var(--primary);
  color: var(--accent);
}

.fee-row--corporate { background: rgba(25, 167, 206, 0.04); }

/* ─── CONTACT ───────────────────────────────────────────────── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 80px;
  align-items: flex-start;
}

.contact-info .section-heading { margin-bottom: 20px; }
.contact-info > p {
  color: var(--dark-gray);
  margin-bottom: 36px;
  line-height: 1.75;
}

.contact-details { display: flex; flex-direction: column; gap: 20px; margin-bottom: 36px; }

.contact-detail-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}
.contact-detail-icon {
  width: 44px; height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(25, 167, 206, 0.08);
  border-radius: var(--radius-sm);
  font-size: 1.2rem;
  color: var(--primary);
  flex-shrink: 0;
}
.contact-detail-item strong {
  display: block;
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 2px;
}
.contact-detail-item span { font-size: 0.9rem; color: var(--dark-gray); }

.contact-social {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--mid-gray);
}

/* Social buttons */
.social-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px; height: 38px;
  background: var(--light-gray);
  border-radius: var(--radius-sm);
  font-size: 1.05rem;
  color: var(--dark-gray);
  transition: all var(--dur) var(--ease);
}
.social-btn:hover {
  background: var(--primary);
  color: var(--white);
  transform: translateY(-3px);
  box-shadow: var(--shadow-cyan);
}

/* Form */
.contact-form-wrap {
  background: var(--bg-tinted);
  border: 1px solid var(--light-gray);
  border-radius: var(--radius-lg);
  padding: 44px 40px;
}

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

.form-group {
  display: flex;
  flex-direction: column;
  margin-bottom: 20px;
}

.form-group label {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 8px;
}
.req { color: var(--primary); }

.input-wrap {
  position: relative;
  display: flex;
  align-items: center;
}
.input-wrap > i {
  position: absolute;
  left: 14px;
  color: var(--mid-gray);
  font-size: 1rem;
  pointer-events: none;
  transition: color var(--dur) var(--ease);
}
.input-wrap:focus-within > i { color: var(--primary); }

.input-wrap input,
.input-wrap textarea {
  width: 100%;
  background: var(--bg-white);
  border: 1.5px solid var(--light-gray);
  border-radius: var(--radius-sm);
  padding: 13px 16px 13px 42px;
  font-family: var(--font-body);
  font-size: 0.93rem;
  color: var(--accent);
  outline: none;
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.input-wrap textarea { resize: vertical; min-height: 140px; padding-top: 14px; }
.input-wrap:focus-within input,
.input-wrap:focus-within textarea {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(25, 167, 206, 0.12);
}
.input-wrap input.error,
.input-wrap textarea.error { border-color: #E55353; }

.textarea-wrap { align-items: flex-start; }
.textarea-wrap > i { top: 15px; }

.field-error {
  font-size: 0.8rem;
  color: #E55353;
  margin-top: 5px;
  min-height: 18px;
  display: block;
}

.btn-submit {
  width: 100%;
  justify-content: center;
  margin-top: 8px;
  padding: 16px 32px;
  font-size: 0.95rem;
  position: relative;
}

.btn-loader {
  display: none;
  width: 16px; height: 16px;
  border: 2px solid transparent;
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin-left: 8px;
}
.btn-submit.loading .btn-loader { display: inline-block; }

@keyframes spin { to { transform: rotate(360deg); } }

.form-success {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  background: rgba(25, 167, 206, 0.08);
  border: 1px solid rgba(25, 167, 206, 0.25);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  margin-top: 20px;
}
.form-success i {
  font-size: 2rem;
  color: var(--primary);
  flex-shrink: 0;
}
.form-success strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 4px;
}
.form-success p { font-size: 0.9rem; color: var(--dark-gray); margin: 0; }

/* ─── FOOTER ────────────────────────────────────────────────── */
.footer { background: var(--near-black); }

.footer-top { padding: 80px 0 60px; }

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 48px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}
.footer-logo svg { width: 40px; height: 40px; }
.footer-acronym {
  display: block;
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--white);
  line-height: 1;
}
.footer-tagline-text {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--primary-light);
}

.footer-desc {
  font-size: 0.88rem;
  color: var(--mid-gray);
  line-height: 1.75;
  margin-bottom: 24px;
  max-width: 300px;
}

.footer-social {
  display: flex;
  gap: 8px;
}

.footer-nav h4,
.footer-contact h4 {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--white);
  margin-bottom: 20px;
}

.footer-nav ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-nav a {
  font-size: 0.88rem;
  color: var(--mid-gray);
  transition: color var(--dur) var(--ease), padding-left var(--dur) var(--ease);
}
.footer-nav a:hover { color: var(--primary); padding-left: 6px; }

.footer-contact p {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--mid-gray);
  margin-bottom: 12px;
}
.footer-contact i { color: var(--primary); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.07);
  padding: 24px 0;
}
.footer-bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-bottom p {
  font-size: 0.82rem;
  color: var(--mid-gray);
}
.footer-bottom-links {
  display: flex;
  gap: 24px;
}
.footer-bottom-links a {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--mid-gray);
  transition: color var(--dur) var(--ease);
}
.footer-bottom-links a:hover { color: var(--primary); }

/* ─── BACK TO TOP ───────────────────────────────────────────── */
.back-to-top {
  position: fixed;
  bottom: 32px; right: 32px;
  z-index: 900;
  width: 48px; height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary);
  color: var(--accent);
  border-radius: var(--radius-sm);
  font-size: 1.2rem;
  box-shadow: var(--shadow-cyan);
  transition: all var(--dur) var(--ease);
  opacity: 0;
  pointer-events: none;
  transform: translateY(20px);
}
.back-to-top.visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}
.back-to-top:hover {
  background: var(--primary-dark);
  transform: translateY(-4px);
}

/* ─── SCROLL ANIMATIONS ─────────────────────────────────────── */
[data-animate] {
  opacity: 0;
  transition: opacity var(--dur-slow) var(--ease),
              transform var(--dur-slow) var(--ease);
}

[data-animate="fade-up"]     { transform: translateY(30px); }
[data-animate="slide-right"] { transform: translateX(-40px); }
[data-animate="slide-left"]  { transform: translateX(40px); }

[data-animate].animated {
  opacity: 1;
  transform: none;
}

/* ─── RESPONSIVE ────────────────────────────────────────────── */

/* Large screens — 1400px */
@media (max-width: 1400px) {
  .tech-grid { grid-template-columns: repeat(4, 1fr); }
  .aims-grid { grid-template-columns: repeat(3, 1fr); }
  .membership-grid { grid-template-columns: repeat(3, 1fr); }
}

/* Laptop — 1100px */
@media (max-width: 1100px) {
  :root { --section-pad: 80px; }
  .about-grid { grid-template-columns: 1fr; gap: 48px; }
  .about-visual { flex-direction: row; max-width: 100%; }
  .about-img-wrap { max-width: 240px; }
  .tech-grid { grid-template-columns: repeat(2, 1fr); }
  .membership-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
  .mv-grid { grid-template-columns: 1fr; gap: 24px; }
}

/* Tablet — 900px */
@media (max-width: 900px) {
  /* Nav: hide links, show hamburger */
  .nav-links {
    position: fixed;
    top: 0; right: 0;
    width: min(320px, 80vw);
    height: 100vh;
    background: var(--near-black);
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    padding: 80px 36px;
    gap: 8px;
    transform: translateX(100%);
    transition: transform 0.4s var(--ease);
    box-shadow: -4px 0 40px rgba(0,0,0,0.4);
  }
  .nav-links.open { transform: translateX(0); }
  .nav-link { font-size: 1.1rem; padding: 12px 0; }
  .nav-link::after { bottom: 0; left: 0; }
  .hamburger { display: flex; }
  .btn-nav-cta { display: none; }

  .aims-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; gap: 48px; }
  .form-row { grid-template-columns: 1fr; gap: 0; }
  .form-fees-grid { grid-template-columns: 1fr; }
}

/* Mobile — 640px */
@media (max-width: 640px) {
  :root { --section-pad: 64px; }

  .hero-content { padding-top: 100px; }
  .hero-stats { flex-direction: column; gap: 20px; padding: 24px 32px; }
  .stat-divider { width: 60%; height: 1px; }

  .tech-grid { grid-template-columns: 1fr; }
  .aims-grid { grid-template-columns: 1fr; }
  .membership-grid { grid-template-columns: 1fr; }

  .about-visual { flex-direction: column; }
  .about-metrics { width: 100%; justify-content: center; }

  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom-inner { flex-direction: column; text-align: center; }
  .footer-bottom-links { justify-content: center; }

  .fees-block, .fees-table-wrap { padding: 24px 20px; }
  .contact-form-wrap { padding: 28px 20px; }

  .fee-row { grid-template-columns: 1fr auto; }
  .fee-row > span:last-child { display: none; }
  .fee-row--header > span:last-child { display: none; }

  .mv-card { padding: 32px 24px; }
  .back-to-top { bottom: 20px; right: 20px; }
}

/* ─── REDUCED MOTION ────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  [data-animate] { opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
}