/* ============================================================
   CYBER FOR EVERYONE — Gunmetal + Civic Blue
   ============================================================ */

:root {
  /* Type Scale */
  --text-xs:   clamp(0.75rem,  0.7rem  + 0.25vw, 0.875rem);
  --text-sm:   clamp(0.875rem, 0.8rem  + 0.35vw, 1rem);
  --text-base: clamp(1rem,     0.95rem + 0.25vw, 1.125rem);
  --text-lg:   clamp(1.125rem, 1rem    + 0.75vw, 1.5rem);
  --text-xl:   clamp(1.5rem,   1.2rem  + 1.25vw, 2.25rem);
  --text-2xl:  clamp(2rem,     1.2rem  + 2.5vw,  3.5rem);
  --text-3xl:  clamp(2.5rem,   1rem    + 4vw,    5rem);

  /* Spacing */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.375rem;
  --radius-lg: 0.5rem;

  /* Motion */
  --transition: 200ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Fonts */
  --font-display: 'Clash Display', 'Helvetica Neue', sans-serif;
  --font-body:    'Satoshi', 'Inter', sans-serif;
  --font-mono:    'JetBrains Mono', 'SF Mono', monospace;
}

/* === DARK (default) === */
:root,
[data-theme='dark'] {
  --bg:              #0f1214;
  --bg-raised:       #161a1e;
  --bg-card:         #1a1e23;
  --border:          #272d34;
  --border-subtle:   #1f2428;
  --text-primary:    #cdd0d4;
  --text-secondary:  #8892a0;
  --text-tertiary:   #55616e;
  --accent:          #3d7aa8;
  --accent-dim:      rgba(61, 122, 168, 0.1);
  --accent-select:   rgba(61, 122, 168, 0.2);
  --accent-glow:     rgba(61, 122, 168, 0.06);
  --threat-high:     #9e4545;
  --threat-med:      #8a7640;
  --threat-low:      #4e6e5a;
  --threat-ok:       #3d6e5a;
  --shadow:          0 1px 3px rgba(0,0,0,0.5);
  --status-dot:      #3d7aa8;
}

/* === LIGHT === */
[data-theme='light'] {
  --bg:              #f1f3f5;
  --bg-raised:       #ffffff;
  --bg-card:         #ffffff;
  --border:          #d4d9df;
  --border-subtle:   #e5e8ec;
  --text-primary:    #1a1f26;
  --text-secondary:  #5a6473;
  --text-tertiary:   #8a95a3;
  --accent:          #1d5a8a;
  --accent-dim:      rgba(29, 90, 138, 0.07);
  --accent-select:   rgba(29, 90, 138, 0.12);
  --accent-glow:     rgba(29, 90, 138, 0.04);
  --threat-high:     #8b2e2e;
  --threat-med:      #7a6020;
  --threat-low:      #2e5e3e;
  --threat-ok:       #1e5535;
  --shadow:          0 1px 3px rgba(0,0,0,0.07);
  --status-dot:      #1d5a8a;
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme]) {
    --bg:              #f1f3f5;
    --bg-raised:       #ffffff;
    --bg-card:         #ffffff;
    --border:          #d4d9df;
    --border-subtle:   #e5e8ec;
    --text-primary:    #1a1f26;
    --text-secondary:  #5a6473;
    --text-tertiary:   #8a95a3;
    --accent:          #1d5a8a;
    --accent-dim:      rgba(29, 90, 138, 0.07);
    --accent-select:   rgba(29, 90, 138, 0.12);
    --accent-glow:     rgba(29, 90, 138, 0.04);
    --threat-high:     #8b2e2e;
    --threat-med:      #7a6020;
    --threat-low:      #2e5e3e;
    --threat-ok:       #1e5535;
    --shadow:          0 1px 3px rgba(0,0,0,0.07);
    --status-dot:      #1d5a8a;
  }
}

/* ============================================================
   LAYOUT
   ============================================================ */

.container {
  width: 100%;
  max-width: 1080px;
  margin-inline: auto;
  padding-inline: var(--space-6);
}

section {
  padding-block: clamp(var(--space-16), 7vw, var(--space-24));
}

/* ============================================================
   FADE-IN ANIMATION
   ============================================================ */

.fade-in {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s cubic-bezier(0.16,1,0.3,1), transform 0.6s cubic-bezier(0.16,1,0.3,1);
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================================
   HEADER
   ============================================================ */

.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.header--scrolled {
  border-bottom-color: var(--border-subtle);
  box-shadow: var(--shadow);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 62px;
}

.header__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--text-primary);
}
.header__logo:hover { opacity: 0.8; }

.header__logo-mark {
  width: 26px;
  height: 30px;
  color: var(--accent);
  flex-shrink: 0;
}

.header__logo-text {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  line-height: 1.35;
  color: var(--text-primary);
}

.header__nav {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}
.header__nav a {
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  text-decoration: none;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  transition: color var(--transition);
}
.header__nav a:hover { color: var(--text-primary); }

.header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: var(--radius-md);
  color: var(--text-tertiary);
  transition: color var(--transition), background var(--transition);
}
.theme-toggle:hover {
  color: var(--text-primary);
  background: var(--accent-dim);
}

.mobile-toggle {
  display: none;
  width: 34px;
  height: 34px;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
}

@media (max-width: 768px) {
  .header__nav { display: none; }
  .mobile-toggle { display: flex; }
  .header__nav.active {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border-subtle);
    padding: var(--space-6);
    gap: var(--space-5);
  }
}

/* ============================================================
   HERO
   ============================================================ */

.hero {
  min-height: 82vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero__content {
  max-width: 680px;
  position: relative;
  z-index: 2;
}

.hero__label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  letter-spacing: 0.06em;
  margin-bottom: var(--space-6);
}

.hero__title {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.06;
  color: var(--text-primary);
  margin-bottom: var(--space-6);
}

.hero__desc {
  font-size: var(--text-base);
  color: var(--text-secondary);
  max-width: 460px;
  line-height: 1.7;
  margin-bottom: var(--space-10);
}

.hero__actions {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}

/* Hero decoration */
.hero__deco {
  position: absolute;
  right: 0;
  top: 0;
  bottom: 0;
  width: 42%;
  pointer-events: none;
  overflow: hidden;
}

.hero__deco-line {
  position: absolute;
  right: 22%;
  top: 15%;
  width: 1px;
  height: 240px;
  background: linear-gradient(to bottom, transparent, var(--border), transparent);
  opacity: 0.5;
}
.hero__deco-line--2 {
  right: 28%;
  top: 30%;
  height: 150px;
  opacity: 0.25;
}

.hero__deco-shield {
  position: absolute;
  right: -8%;
  top: 50%;
  transform: translateY(-50%);
  width: 340px;
  opacity: 0.04;
  color: var(--accent);
}
.hero__deco-shield svg {
  width: 100%;
  height: auto;
}

@media (max-width: 768px) {
  .hero__deco { display: none; }
}

/* ============================================================
   BUTTONS
   ============================================================ */

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 500;
  padding: 11px 22px;
  border-radius: var(--radius-md);
  text-decoration: none;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition:
    background var(--transition),
    color var(--transition),
    border-color var(--transition),
    transform var(--transition),
    opacity var(--transition);
}

.btn--primary {
  background: var(--accent);
  color: #fff;
}
.btn--primary:hover {
  opacity: 0.88;
  transform: translateY(-1px);
}
.btn--primary:active { transform: translateY(0); }

.btn--ghost {
  border: 1px solid var(--border);
  color: var(--text-secondary);
  background: transparent;
}
.btn--ghost:hover {
  border-color: var(--text-tertiary);
  color: var(--text-primary);
}

/* ============================================================
   DIVIDER
   ============================================================ */

.divider {
  border: 0;
  height: 1px;
  background: var(--border-subtle);
  margin: 0;
}

/* ============================================================
   SECTION HEADERS
   ============================================================ */

.section-label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: var(--space-4);
}

.section-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 600;
  letter-spacing: -0.015em;
  color: var(--text-primary);
  margin-bottom: var(--space-3);
}

.section-desc {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  max-width: 480px;
  line-height: 1.65;
}

.section-subdesc {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.65;
  margin-top: var(--space-2);
}

.section-header {
  margin-bottom: clamp(var(--space-10), 4vw, var(--space-16));
}

/* ============================================================
   STATS
   ============================================================ */

.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
  padding-block: clamp(var(--space-10), 4vw, var(--space-16));
}

@media (max-width: 640px) {
  .stats-row { grid-template-columns: repeat(2, 1fr); }
}

.stat { text-align: center; }

.stat__value {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1;
  margin-bottom: var(--space-1);
  letter-spacing: -0.02em;
}

.stat__label {
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* ============================================================
   MISSION SPLIT
   ============================================================ */

.mission-section {
  padding-block: clamp(var(--space-16), 7vw, var(--space-24));
}

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(var(--space-10), 5vw, var(--space-16));
  align-items: start;
}

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

/* Threat Panel */
.threat-panel {
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-card);
}

.threat-panel__bar {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--border-subtle);
}

.threat-panel__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--border);
}

.threat-panel__label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-tertiary);
  letter-spacing: 0.05em;
  margin-left: var(--space-1);
}

.threat-panel__body {
  padding: var(--space-5) var(--space-5);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  line-height: 2;
  color: var(--text-tertiary);
  min-height: 280px;
}

.threat-line { display: flex; align-items: baseline; gap: var(--space-2); }
.threat-line--high { color: var(--threat-high); }
.threat-line--med  { color: var(--threat-med); }
.threat-line--low  { color: var(--threat-low); }
.threat-status     { color: var(--threat-ok); margin-top: var(--space-2); }

.threat-tag {
  font-weight: 400;
  flex-shrink: 0;
}
.threat-tag--ok { color: var(--threat-ok); }

/* Mission list */
.mission-list {
  display: grid;
  gap: var(--space-4);
  margin-top: var(--space-6);
}

.mission-item {
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.5;
}

.mission-item::before {
  content: '—';
  color: var(--accent);
  flex-shrink: 0;
}

/* ============================================================
   CURRICULUM GRID
   ============================================================ */

.curriculum-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

@media (max-width: 768px) {
  .curriculum-grid { grid-template-columns: 1fr; }
}
@media (min-width: 480px) and (max-width: 768px) {
  .curriculum-grid { grid-template-columns: repeat(2, 1fr); }
}

.curriculum-cell {
  padding: var(--space-8) var(--space-6);
  background: var(--bg-card);
  transition: background var(--transition);
}
.curriculum-cell:hover {
  background: var(--bg-raised);
}

.curriculum-cell__num {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--accent);
  margin-bottom: var(--space-4);
  opacity: 0.7;
}

.curriculum-cell__title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-2);
  letter-spacing: -0.01em;
}

.curriculum-cell__desc {
  font-size: var(--text-xs);
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ============================================================
   GET INVOLVED
   ============================================================ */

.involve-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

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

.involve-card {
  padding: var(--space-8) var(--space-6);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  transition: border-color var(--transition), background var(--transition);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.involve-card:hover {
  border-color: var(--border);
  background: var(--bg-raised);
}

.involve-card__icon {
  width: 32px;
  height: 32px;
  color: var(--accent);
}
.involve-card__icon svg {
  width: 100%;
  height: 100%;
}

.involve-card__title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.involve-card__desc {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.65;
  flex: 1;
  max-width: none;
}

.involve-card__link {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--accent);
  text-decoration: none;
  letter-spacing: 0.03em;
  transition: opacity var(--transition);
  margin-top: auto;
}
.involve-card__link:hover { opacity: 0.7; }

/* ============================================================
   CONTACT
   ============================================================ */

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(var(--space-10), 5vw, var(--space-16));
  align-items: start;
}

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

.contact-form {
  display: grid;
  gap: var(--space-4);
}

.form-group { display: grid; gap: var(--space-1); }

.form-group label {
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 10px 14px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: var(--text-sm);
  transition: border-color var(--transition);
  appearance: none;
  -webkit-appearance: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--accent);
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

.contact-info {
  display: grid;
  gap: var(--space-6);
  padding-top: var(--space-2);
}

.contact-info__item {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.contact-info__label {
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.contact-info__value {
  font-size: var(--text-sm);
  color: var(--text-primary);
}
.contact-info__value a {
  color: var(--text-primary);
  text-decoration: none;
  transition: color var(--transition);
}
.contact-info__value a:hover { color: var(--accent); }

.status-badge {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--status-dot);
  flex-shrink: 0;
  box-shadow: 0 0 0 3px var(--accent-dim);
  animation: pulse 2.5s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 3px var(--accent-dim); }
  50%       { box-shadow: 0 0 0 6px transparent; }
}

/* ============================================================
   FOOTER
   ============================================================ */

.footer {
  border-top: 1px solid var(--border-subtle);
  padding-block: var(--space-10);
}

.footer__inner {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-6);
}

.footer__left {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--text-secondary);
  transition: color var(--transition);
}
.footer__logo:hover { color: var(--text-primary); }

.footer__logo-mark {
  width: 20px;
  height: 24px;
  color: var(--accent);
  flex-shrink: 0;
  opacity: 0.6;
}

.footer__logo-text {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.footer__tagline {
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  max-width: 260px;
  line-height: 1.5;
}

.footer__right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: var(--space-3);
}

.footer__copy {
  font-size: var(--text-xs);
  color: var(--text-tertiary);
}

.footer__links {
  display: flex;
  gap: var(--space-6);
}

.footer__links a {
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  text-decoration: none;
  letter-spacing: 0.03em;
  transition: color var(--transition);
}
.footer__links a:hover { color: var(--text-primary); }

@media (max-width: 560px) {
  .footer__inner { flex-direction: column; }
  .footer__right { align-items: flex-start; }
}