/* ============================================================
   SKYNODE TECHNOLOGIES — STYLESHEET
   1 Tokens  2 Reset  3 Typography  4 Layout & buttons
   5 Accessibility  6 Header  7 Hero  8 Pathways  9 Pillars
   10 Possibilities  11 Approach  12 Footer
   Colours, sizes and spacing live in the tokens; change them
   once there and the whole site updates.
   ============================================================ */

/* ---------- 1. DESIGN TOKENS ---------- */
:root {
  --navy: #071B49;  --blue: #0878F9;  --cyan: #18C8F5;  --white: #FFFFFF;
  --light-blue: #F4F8FF;  --soft-blue: #EAF3FF;
  --text-dark: #0B1F44;  --text-body: #42526B;  --border: #DCE7F5;

  --color-text: var(--text-dark);
  --color-text-muted: var(--text-body);
  --color-accent: var(--blue);
  --color-border: var(--border);

  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --text-sm: 0.9375rem;  --text-base: 1rem;  --text-lg: 1.125rem;
  --text-xl: clamp(1.25rem, 1.1rem + 0.7vw, 1.5rem);
  --text-2xl: clamp(1.5rem, 1.3rem + 1vw, 2rem);
  --text-3xl: clamp(1.75rem, 1.4rem + 1.6vw, 2.5rem);
  --text-display: clamp(2.25rem, 1.6rem + 3vw, 3.75rem);
  --leading-tight: 1.15;  --leading-body: 1.65;

  --space-1: 0.25rem; --space-2: 0.5rem; --space-3: 0.75rem; --space-4: 1rem;
  --space-6: 1.5rem;  --space-8: 2rem;   --space-12: 3rem;   --space-16: 4rem; --space-24: 6rem;
  --section-gap: clamp(3.5rem, 2rem + 6vw, 6rem);

  --radius-sm: 6px; --radius-md: 12px; --radius-lg: 20px; --radius-full: 999px;
  --shadow-sm: 0 1px 2px rgba(7, 27, 73, 0.06);
  --shadow-md: 0 4px 16px rgba(7, 27, 73, 0.08);
  --shadow-lg: 0 16px 40px rgba(7, 27, 73, 0.10);

  --container-width: 1200px;
  --gutter: clamp(1.25rem, 5vw, 2.5rem);
  --transition: 200ms ease;
}

/* ---------- 2. RESET ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: var(--space-24); }
img, picture, svg { display: block; max-width: 100%; height: auto; }
button, input, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; background: none; border: none; }
ul, ol { list-style: none; padding: 0; }

/* ---------- 3. TYPOGRAPHY ---------- */
body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-text-muted);
  background-color: var(--white);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
h1, h2, h3, h4 { color: var(--color-text); line-height: var(--leading-tight); font-weight: 700; letter-spacing: -0.02em; text-wrap: balance; }
h1 { font-size: var(--text-display); font-weight: 800; }
h2 { font-size: var(--text-3xl); }
h3 { font-size: var(--text-xl); letter-spacing: -0.01em; }
p { max-width: 68ch; }
a { color: var(--color-accent); text-decoration-thickness: 1px; text-underline-offset: 3px; transition: color var(--transition); }
a:hover { color: var(--navy); }

.eyebrow { display: block; font-size: 0.8125rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--color-accent); margin-bottom: var(--space-3); }
.eyebrow--pill { display: inline-block; padding: var(--space-1) var(--space-3); background: var(--soft-blue); border-radius: var(--radius-full); margin-bottom: var(--space-6); }
.eyebrow--light { color: var(--cyan); }
.accent { color: var(--color-accent); }

/* ---------- 4. LAYOUT, ICONS, BUTTONS ---------- */
.container { width: 100%; max-width: var(--container-width); margin-inline: auto; padding-inline: var(--gutter); }
.section { padding-block: var(--section-gap); }
.section--alt { background-color: var(--light-blue); }
.section--dark { background-color: var(--navy); color: var(--soft-blue); }
.section--dark h2, .section--dark h3 { color: var(--white); }
.section__head { text-align: center; margin-bottom: var(--space-12); }
.section__head p { margin-inline: auto; }

.sprite { position: absolute; width: 0; height: 0; overflow: hidden; }
.icon { width: 1.25em; height: 1.25em; flex-shrink: 0; fill: none; stroke: currentColor; stroke-width: 1.75; stroke-linecap: round; stroke-linejoin: round; }

.button {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
  padding: var(--space-3) var(--space-6); border-radius: var(--radius-md);
  font-weight: 600; font-size: var(--text-base); text-decoration: none; white-space: nowrap;
  border: 1px solid transparent;
  transition: background-color var(--transition), color var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}
.button .icon { width: 1.1em; height: 1.1em; transition: transform var(--transition); }
.button:hover .icon { transform: translateX(3px); }
.button--primary { background-color: var(--color-accent); color: var(--white); box-shadow: var(--shadow-sm); }
.button--primary:hover { background-color: var(--navy); color: var(--white); box-shadow: var(--shadow-md); }
.button--ghost { background-color: var(--white); color: var(--color-text); border-color: var(--color-border); }
.button--ghost:hover { border-color: var(--color-accent); color: var(--color-accent); }
.button--light { background-color: var(--white); color: var(--navy); }
.button--light:hover { background-color: var(--soft-blue); color: var(--navy); }
.button--cyan { background-color: var(--cyan); color: var(--navy); }
.button--cyan:hover { background-color: var(--white); color: var(--navy); }

/* ---------- 5. ACCESSIBILITY ---------- */
.visually-hidden { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.skip-link { position: absolute; top: var(--space-2); left: var(--space-2); z-index: 200; padding: var(--space-3) var(--space-4); background-color: var(--navy); color: var(--white); border-radius: var(--radius-md); text-decoration: none; transform: translateY(-150%); transition: transform var(--transition); }
.skip-link:focus { transform: translateY(0); color: var(--white); }
:focus-visible { outline: 3px solid var(--cyan); outline-offset: 3px; border-radius: var(--radius-sm); }
.section--dark :focus-visible, .site-footer :focus-visible, .panel :focus-visible { outline-color: var(--white); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}

/* ---------- 6. HEADER ---------- */
/* Transparent at the top, solid with a soft shadow once script.js adds .is-scrolled. */
.site-header { position: sticky; top: 0; z-index: 100; background-color: transparent; border-bottom: 1px solid transparent; transition: background-color var(--transition), border-color var(--transition), box-shadow var(--transition); }
.site-header.is-scrolled { background-color: rgba(255, 255, 255, 0.97); backdrop-filter: blur(8px); border-bottom-color: var(--color-border); box-shadow: var(--shadow-md); }
.site-header__inner { display: flex; align-items: center; justify-content: space-between; gap: var(--space-6); padding-block: var(--space-3); }

/* Logo: tall enough that the icon and SKYNODE wordmark both read clearly. */
.site-logo { display: block; flex-shrink: 0; }
.site-logo img { height: 56px; width: auto; }

.nav-toggle { display: flex; align-items: center; justify-content: center; width: 44px; height: 44px; z-index: 101; }
.nav-toggle__icon, .nav-toggle__icon::before, .nav-toggle__icon::after { display: block; width: 22px; height: 2px; background-color: var(--navy); border-radius: var(--radius-full); transition: transform var(--transition), opacity var(--transition); }
.nav-toggle__icon::before, .nav-toggle__icon::after { content: ""; position: relative; }
.nav-toggle__icon::before { top: -6px; }
.nav-toggle__icon::after { top: 4px; }
.nav-toggle.is-active .nav-toggle__icon { background-color: transparent; }
.nav-toggle.is-active .nav-toggle__icon::before { top: 0; transform: rotate(45deg); }
.nav-toggle.is-active .nav-toggle__icon::after { top: -2px; transform: rotate(-45deg); }

.primary-nav__list { display: flex; align-items: center; gap: var(--space-8); }
.primary-nav__list a { position: relative; display: block; padding-block: var(--space-2); color: var(--color-text); font-weight: 500; text-decoration: none; }
.primary-nav__list a:hover, .primary-nav__list a[aria-current] { color: var(--color-accent); }
.primary-nav__list a[aria-current]::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 2px; background: var(--color-accent); border-radius: var(--radius-full); }

@media (max-width: 859px) {
  .site-logo img { height: 48px; }
  .primary-nav { position: fixed; inset: 0; z-index: 100; display: flex; flex-direction: column; justify-content: center; align-items: center; gap: var(--space-8); background-color: var(--white); transform: translateX(100%); visibility: hidden; transition: transform var(--transition), visibility 0s var(--transition); }
  .primary-nav.is-open { transform: translateX(0); visibility: visible; transition: transform var(--transition); }
  .primary-nav__list { flex-direction: column; gap: var(--space-4); text-align: center; }
  .primary-nav__list a { font-size: var(--text-xl); }
}
@media (min-width: 860px) {
  .nav-toggle { display: none; }
  .site-logo img { height: 64px; }
  .primary-nav { flex: 1; display: flex; align-items: center; }
  .primary-nav__list { margin-inline: auto; }
}

/* ---------- 7. HERO ---------- */
.hero { padding-block: clamp(2rem, 4vw, var(--space-16)) var(--section-gap); background: linear-gradient(180deg, var(--white) 0%, var(--light-blue) 100%); overflow: hidden; }
.hero__inner { display: grid; grid-template-columns: 1fr; align-items: center; gap: var(--space-12); }
.hero__content { max-width: 40rem; animation: rise 700ms ease both; }
.hero__lead { font-size: var(--text-lg); margin-top: var(--space-6); max-width: 38ch; }
.hero__actions { display: flex; flex-wrap: wrap; gap: var(--space-4); margin-top: var(--space-8); }
.hero__note { margin-top: var(--space-8); padding-left: var(--space-4); border-left: 3px solid var(--cyan); font-size: var(--text-sm); max-width: 32ch; }

.hero__visual { position: relative; width: min(100%, 440px); margin-inline: auto; }
.orbital { width: 100%; }
.orbital__ring { transform-origin: 240px 240px; animation: orbit-rotate 40s linear infinite; }
.orbital__ring--1 { animation-duration: 34s; }
.orbital__ring--2 { animation-duration: 46s; animation-direction: reverse; }
.orbital__ring--3 { animation-duration: 52s; }
@keyframes orbit-rotate { to { transform: rotate(360deg); } }
@keyframes rise { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: none; } }
@keyframes float { 50% { transform: translateY(-6px); } }

.float-icon { position: absolute; display: grid; place-items: center; width: 44px; height: 44px; background: var(--white); color: var(--blue); border: 1px solid var(--border); border-radius: var(--radius-md); box-shadow: var(--shadow-md); animation: float 6s ease-in-out infinite; }
.float-icon--1 { top: 6%; left: 40%; }
.float-icon--2 { top: 20%; right: 0; animation-delay: -1.5s; }
.float-icon--3 { top: 56%; left: 2%; animation-delay: -3s; }
.float-icon--4 { bottom: 8%; right: 4%; animation-delay: -4.5s; }

@media (min-width: 900px) {
  .hero__inner { grid-template-columns: 1.05fr 1fr; gap: var(--space-16); }
  .hero__visual { width: 100%; max-width: 500px; margin-inline: 0 0; justify-self: end; }
}

/* ---------- 8. TRAINING + SOLUTIONS SPLIT ---------- */
.pathways { padding-bottom: var(--section-gap); }
.pathways__grid { position: relative; display: grid; grid-template-columns: 1fr; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-lg); }
.panel { position: relative; isolation: isolate; overflow: hidden; display: flex; flex-direction: column; align-items: flex-start; gap: var(--space-4); padding: clamp(1.75rem, 4vw, 3rem); color: var(--soft-blue); }
.panel h2 { color: var(--white); font-size: var(--text-2xl); max-width: 20ch; }
.panel::before { content: ""; position: absolute; z-index: -1; width: 420px; height: 420px; right: -120px; bottom: -160px; border-radius: 50%; border: 1px solid rgba(24, 200, 245, 0.25); box-shadow: 0 0 0 60px rgba(24, 200, 245, 0.04), 0 0 0 120px rgba(24, 200, 245, 0.03); }
.panel--learn { background: linear-gradient(135deg, color-mix(in srgb, var(--blue) 55%, var(--navy)), var(--navy)); }
.panel--work { background: linear-gradient(135deg, var(--navy), color-mix(in srgb, var(--navy) 80%, black)); }
.panel__eyebrow { font-size: 0.8125rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--cyan); }
.panel__icon { display: grid; place-items: center; width: 52px; height: 52px; border-radius: 50%; background: var(--blue); color: var(--white); font-size: 1.4rem; }
.panel__icon--cyan { background: var(--cyan); color: var(--navy); }
.tags { display: flex; flex-wrap: wrap; gap: var(--space-2); margin-block: var(--space-2) var(--space-4); }
.tags li { padding: var(--space-1) var(--space-3); border: 1px solid rgba(255, 255, 255, 0.35); border-radius: var(--radius-sm); font-size: 0.8125rem; color: var(--white); }
.panel .button { margin-top: auto; }
.pathways__or { position: absolute; z-index: 2; top: 50%; left: 50%; transform: translate(-50%, -50%); display: grid; place-items: center; width: 44px; height: 44px; border-radius: 50%; background: var(--white); color: var(--blue); font-size: 0.75rem; font-weight: 700; box-shadow: var(--shadow-md); }
@media (min-width: 860px) { .pathways__grid { grid-template-columns: 1fr 1fr; } }

/* ---------- 9. PILLARS ---------- */
.pillars { display: grid; grid-template-columns: 1fr; gap: var(--space-6); }
.card { display: flex; flex-direction: column; gap: var(--space-3); padding: var(--space-8) var(--space-6); background: var(--white); border: 1px solid var(--color-border); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition); }
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--cyan); }
.card__icon { display: grid; place-items: center; width: 52px; height: 52px; border-radius: var(--radius-md); background: var(--soft-blue); color: var(--blue); font-size: 1.5rem; margin-bottom: var(--space-2); }
.card h3 { font-size: 1.125rem; }
.card p { font-size: var(--text-sm); }
.card__link { display: inline-flex; align-items: center; gap: var(--space-2); margin-top: auto; padding-top: var(--space-3); font-size: var(--text-sm); font-weight: 600; text-decoration: none; }
.card__link .icon { width: 1em; height: 1em; transition: transform var(--transition); }
.card__link:hover .icon { transform: translateX(3px); }
@media (min-width: 600px) { .pillars { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1020px) { .pillars { grid-template-columns: repeat(4, 1fr); } }

/* ---------- 10. POSSIBILITIES (dark) ---------- */
.possibilities { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-8) var(--space-6); }
.possibilities li { display: flex; flex-direction: column; align-items: center; gap: var(--space-2); text-align: center; }
.possibilities .icon { width: 2.5rem; height: 2.5rem; color: var(--cyan); stroke-width: 1.5; margin-bottom: var(--space-2); }
.possibilities h3 { font-size: var(--text-base); }
.possibilities p { font-size: var(--text-sm); color: var(--soft-blue); opacity: 0.85; }
.why__note { margin: var(--space-12) auto 0; text-align: center; font-size: var(--text-sm); opacity: 0.75; }
@media (min-width: 700px) { .possibilities { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 1020px) {
  .possibilities { grid-template-columns: repeat(6, 1fr); gap: 0; }
  .possibilities li { padding-inline: var(--space-4); }
  .possibilities li + li { border-left: 1px solid rgba(255, 255, 255, 0.15); }
}

/* ---------- 11. APPROACH ---------- */
.approach { display: grid; grid-template-columns: 1fr; gap: var(--space-12); align-items: center; }
.approach__copy { display: flex; flex-direction: column; align-items: flex-start; gap: var(--space-4); }
.approach__copy .button { margin-top: var(--space-2); }

/* Mobile: a vertical timeline. Desktop: a horizontal five-step row. */
.journey { display: grid; gap: var(--space-6); }
.journey li { position: relative; display: grid; grid-template-columns: 64px 1fr; column-gap: var(--space-4); align-items: center; }
.journey li::before { content: ""; position: absolute; left: 31px; top: 64px; bottom: calc(-1 * var(--space-6)); width: 2px; background: linear-gradient(var(--blue), var(--cyan)); opacity: 0.35; }
.journey li:last-child::before { display: none; }
.journey__icon { grid-row: span 2; display: grid; place-items: center; width: 64px; height: 64px; border-radius: 50%; background: var(--white); color: var(--blue); border: 2px solid var(--blue); box-shadow: var(--shadow-md); font-size: 1.5rem; }
.journey h3 { font-size: var(--text-base); text-transform: uppercase; letter-spacing: 0.06em; color: var(--blue); align-self: end; }
.journey p { font-size: var(--text-sm); align-self: start; }
@media (min-width: 1020px) {
  .approach { grid-template-columns: 0.8fr 1.6fr; gap: var(--space-16); }
  .journey { grid-template-columns: repeat(5, 1fr); gap: var(--space-4); }
  .journey li { display: flex; flex-direction: column; align-items: center; text-align: center; gap: var(--space-2); }
  .journey li::before { left: calc(50% + 40px); right: calc(-50% + 40px); top: 31px; bottom: auto; width: auto; height: 2px; }
  .journey__icon { margin-bottom: var(--space-2); }
}

/* ---------- 12. FOOTER ---------- */
.site-footer { background: var(--navy); color: var(--soft-blue); padding-top: var(--space-16); font-size: var(--text-sm); }
.footer__grid { display: grid; grid-template-columns: 1fr; gap: var(--space-8); padding-bottom: var(--space-12); }
.footer__brand p { margin-top: var(--space-4); max-width: 34ch; }
/* White tile keeps the logo's white background looking intentional on navy. */
.footer__logo { display: inline-block; padding: var(--space-2) var(--space-3); background: var(--white); border-radius: var(--radius-md); }
.footer__logo img { height: 72px; width: auto; }
.footer__title { font-size: var(--text-base); color: var(--white); margin-bottom: var(--space-4); letter-spacing: 0; }
.site-footer ul { display: grid; gap: var(--space-2); }
.site-footer a { color: var(--soft-blue); text-decoration: none; }
.site-footer a:hover { color: var(--cyan); text-decoration: underline; }
.footer__contact li { display: flex; align-items: flex-start; gap: var(--space-3); }
.footer__contact .icon { margin-top: 0.2em; color: var(--cyan); }
.footer__contact a, .footer__contact span { overflow-wrap: anywhere; }
.footer__bottom { display: flex; flex-direction: column; gap: var(--space-3); padding-block: var(--space-6); border-top: 1px solid rgba(255, 255, 255, 0.15); font-size: 0.8125rem; }
.footer__bottom ul { display: flex; gap: var(--space-6); }
@media (min-width: 600px) { .footer__grid { grid-template-columns: repeat(2, 1fr); } .footer__brand { grid-column: 1 / -1; } }
@media (min-width: 1020px) {
  .footer__grid { grid-template-columns: 1.4fr 0.8fr 1fr 1fr 1.3fr; gap: var(--space-8); }
  .footer__brand { grid-column: auto; }
  .footer__bottom { flex-direction: row; justify-content: space-between; align-items: center; }
}