/* ══════════════════════════════════════════════════════════════
   shared.css — Common styles used by both index.html and
   certifications.html (variables, reset, cursor, nav, orbital
   menu, footer, scrollbar, accessibility).
   ══════════════════════════════════════════════════════════════ */

/* ─── CSS Variables ─── */
:root {
    --black: #12121f;
    --purple: #b388ff;
    --blue: #5ad1ff;
    --red: #ff6b6b;
    --green: #39ff14;
    --dark: #151530;
    --card: #191932;
    --border: #353560;
    --glow-p: 0 0 10px #b388ff, 0 0 30px #b388ff80;
    --glow-b: 0 0 10px #5ad1ff, 0 0 30px #5ad1ff80;
    --glow-g: 0 0 10px #39ff14, 0 0 20px #39ff1480;
    --pixel: 'Press Start 2P', monospace;
    --mono: 'Share Tech Mono', monospace;
}

/* ─── Reset ─── */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    background: var(--black);
    color: #eeeeff;
    font-family: var(--mono);
    font-size: 16px;
    overflow-x: hidden;
    cursor: none;
}

/* ─── Custom Cursor ─── */
#cursor {
    position: fixed;
    top: 0;
    left: 0;
    width: 16px;
    height: 16px;
    border: 2px solid var(--purple);
    pointer-events: none;
    z-index: 9999;
    transition: transform .08s linear;
    image-rendering: pixelated;
    will-change: transform;
}

#cursor-dot {
    position: fixed;
    top: 0;
    left: 0;
    width: 4px;
    height: 4px;
    background: var(--purple);
    pointer-events: none;
    z-index: 9999;
    will-change: transform;
}

/* ─── Scanlines overlay ─── */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background: repeating-linear-gradient(0deg, transparent, transparent 2px,
            rgba(0, 0, 0, .08) 2px, rgba(0, 0, 0, .08) 4px);
    pointer-events: none;
    z-index: 9990;
    animation: scanScroll 8s linear infinite;
}

@keyframes scanScroll {
    from {
        background-position: 0 0;
    }

    to {
        background-position: 0 100%;
    }
}

/* ─── Noise texture overlay ─── */
body::after {
    content: '';
    position: fixed;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.03'/%3E%3C/svg%3E");
    pointer-events: none;
    z-index: 9989;
    opacity: .4;
}

/* ─── Starfield canvas ─── */
#starfield {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
}

/* ─── Navigation bar ─── */
#nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 500;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 32px;
    background: rgba(18, 18, 31, .97);
    border-bottom: 1px solid var(--border);
    contain: layout paint;
}

.nav-logo {
    font-family: var(--pixel);
    font-size: clamp(12px, 1.4vw, 16px);
    color: var(--purple);
    text-shadow: var(--glow-p);
    text-decoration: none;
    cursor: pointer;
}

.nav-links {
    display: flex;
    gap: 20px;
    align-items: center;
}

.nav-links a {
    font-family: var(--pixel);
    font-size: clamp(10px, 1.1vw, 13px);
    color: #aaa;
    text-decoration: none;
    transition: color .2s, text-shadow .2s;
    letter-spacing: 1px;
}

.nav-links a:hover {
    color: var(--blue);
    text-shadow: var(--glow-b);
}

.nav-links a.active {
    color: var(--purple);
    text-shadow: var(--glow-p);
}

/* ─── Shared keyframes ─── */
@keyframes flicker {

    0%,
    95%,
    100% {
        opacity: 1;
    }

    96%,
    98% {
        opacity: .3;
    }
}

@keyframes blink {
    50% {
        opacity: 0;
    }
}

/* ─── Footer ─── */
footer {
    text-align: center;
    padding: 24px;
    border-top: 1px solid var(--border);
    font-family: var(--pixel);
    font-size: 9px;
    color: #666;
    background: var(--black);
    position: relative;
    z-index: 1;
}

footer span {
    color: var(--purple);
}

footer a {
    color: var(--blue);
    text-decoration: none;
}

footer a:hover {
    text-shadow: var(--glow-b);
}

/* ─── Reveal animation (used by both pages) ─── */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all .6s ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ─── Scrollbar ─── */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: var(--black);
}

::-webkit-scrollbar-thumb {
    background: var(--border);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--purple);
}

/* ══════════════════════════════════════════════════════════════
   SPACESHIP TOGGLE (mobile only)
   ══════════════════════════════════════════════════════════════ */
.ship-toggle {
    display: none;
    /* shown via @media below */
    background: none;
    border: 2px solid var(--purple);
    color: var(--purple);
    font-size: 22px;
    padding: 4px 10px;
    cursor: pointer;
    border-radius: 4px;
    transition: transform .25s, box-shadow .25s;
    position: relative;
    z-index: 501;
    line-height: 1;
}

.ship-toggle:hover,
.ship-toggle:focus-visible {
    transform: scale(1.15) rotate(-8deg);
    box-shadow: var(--glow-p);
    outline: none;
}

.ship-toggle[aria-expanded="true"] {
    box-shadow: var(--glow-p);
}

/* ══════════════════════════════════════════════════════════════
   ORBITAL MENU OVERLAY (mobile full-screen nav)
   ══════════════════════════════════════════════════════════════ */
.orbital-menu {
    position: fixed;
    inset: 0;
    z-index: 900;
    background: radial-gradient(ellipse at center,
            rgba(18, 18, 31, .97) 0%,
            rgba(10, 10, 15, .99) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity .35s ease, visibility .35s;
}

.orbital-menu.open {
    opacity: 1;
    visibility: visible;
}

.orbital-close {
    position: absolute;
    top: 24px;
    right: 28px;
    background: none;
    border: 2px solid var(--red);
    color: var(--red);
    font-size: 18px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    font-family: var(--pixel);
    transition: transform .2s, box-shadow .2s;
    z-index: 910;
    display: flex;
    align-items: center;
    justify-content: center;
}

.orbital-close:hover {
    transform: scale(1.2) rotate(90deg);
    box-shadow: 0 0 20px var(--red);
}

.orbital-center {
    position: absolute;
    display: flex;
    align-items: center;
    justify-content: center;
}

.orbital-ship {
    font-size: 48px;
    filter: drop-shadow(0 0 20px var(--purple));
    animation: shipPulse 2s ease-in-out infinite;
    z-index: 2;
}

@keyframes shipPulse {

    0%,
    100% {
        transform: scale(1);
        filter: drop-shadow(0 0 20px var(--purple));
    }

    50% {
        transform: scale(1.08);
        filter: drop-shadow(0 0 35px var(--blue));
    }
}

.orbital-ring {
    position: absolute;
    width: 260px;
    height: 260px;
    border: 1px solid rgba(179, 136, 255, .15);
    border-radius: 50%;
    animation: ringRotate 12s linear infinite;
}

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

/* Orbit links: positioned using CSS custom property --i as angle index */
.orbit-link {
    position: absolute;
    text-decoration: none;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    /* transform: rotate(calc(var(--i) * 60deg)) translateX(0) rotate(calc(var(--i) * -60deg)) scale(0); */
    transform: rotate(calc(var(--i) * 51.4deg)) translateX(0) rotate(calc(var(--i) * -51.4deg)) scale(0);
    opacity: 0;
    transition: transform .45s cubic-bezier(.34, 1.56, .64, 1), opacity .3s ease;
    transition-delay: calc(var(--i) * 70ms);
}

/* .orbital-menu.open .orbit-link {
    transform: rotate(calc(var(--i) * 60deg)) translateX(130px) rotate(calc(var(--i) * -60deg)) scale(1);
    opacity: 1;
} */

.orbital-menu.open .orbit-link {
    transform: rotate(calc(var(--i) * 51.4deg)) translateX(130px) rotate(calc(var(--i) * -51.4deg)) scale(1);
    opacity: 1;
}

.orbit-emoji {
    font-size: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: rgba(179, 136, 255, .08);
    border: 2px solid rgba(179, 136, 255, .25);
    transition: transform .25s, border-color .25s, box-shadow .25s;
}

.orbit-link:hover .orbit-emoji,
.orbit-link:focus .orbit-emoji {
    transform: scale(1.2);
    border-color: var(--blue);
    box-shadow: 0 0 25px rgba(90, 209, 255, .5);
}

.orbit-label {
    font-family: var(--pixel);
    font-size: 7px;
    color: var(--blue);
    letter-spacing: 1px;
    text-shadow: 0 0 10px rgba(90, 209, 255, .4);
    opacity: 0;
    transform: translateY(-4px);
    transition: opacity .2s, transform .2s;
}

.orbit-link:hover .orbit-label,
.orbit-link:focus .orbit-label {
    opacity: 1;
    transform: translateY(0);
}

/* ══════════════════════════════════════════════════════════════
   RESPONSIVE — shared breakpoints
   ══════════════════════════════════════════════════════════════ */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .ship-toggle {
        display: flex;
    }

    #nav {
        padding: 12px 16px;
    }

    /* Smaller orbit on compact screens */
    .orbital-ring {
        width: 200px;
        height: 200px;
    }

    /* .orbital-menu.open .orbit-link {
        transform: rotate(calc(var(--i) * 60deg)) translateX(105px) rotate(calc(var(--i) * -60deg)) scale(1);
    } */

    .orbital-menu.open .orbit-link {
        transform: rotate(calc(var(--i) * 51.4deg)) translateX(105px) rotate(calc(var(--i) * -51.4deg)) scale(1);
    }

    /* Larger touch targets */
    .orbit-emoji {
        width: 60px;
        height: 60px;
        font-size: 30px;
    }

    /* Always show labels on mobile (no hover state on touch) */
    .orbit-label {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ─── Reduced motion a11y ─── */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    #starfield {
        display: none;
    }

    body::before {
        animation: none;
    }
}