/* muhan.ai — Cosmic Infinity Experience
   Palette:
     #050510 — Infinite Dark
     #0a0a2e — Cosmic Deep
     #818cf8 — Infinity Indigo
     #c084fc — Nebula Purple
     #06b6d4 — Horizon Cyan
     #e0e0f0 — Star White
*/

:root {
    --c-dark: #050510;
    --c-deep: #0a0a2e;
    --c-indigo: #818cf8;
    --c-purple: #c084fc;
    --c-cyan: #06b6d4;
    --c-star: #e0e0f0;
    --c-panel: rgba(20, 15, 50, 0.55);
    --c-panel-border: rgba(129, 140, 248, 0.18);
    --font-display: "Outfit", system-ui, sans-serif;
    --font-body: "Lexend", system-ui, sans-serif;
    --font-mono: "Fira Code", ui-monospace, monospace;
}

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

html, body {
    background: #050510;
    color: var(--c-star);
    font-family: var(--font-body);
    font-weight: 400;
    line-height: 1.75;
    overflow-x: hidden;
    min-height: 100%;
}

body {
    position: relative;
    background:
        radial-gradient(ellipse 90% 60% at 20% 0%, rgba(129, 140, 248, 0.08), transparent 60%),
        radial-gradient(ellipse 70% 50% at 80% 100%, rgba(192, 132, 252, 0.07), transparent 60%),
        linear-gradient(180deg, #050510 0%, #0a0a2e 50%, #050510 100%);
    background-attachment: fixed;
    padding-bottom: 36px;
}

::selection {
    background: rgba(129, 140, 248, 0.35);
    color: #fff;
}

/* ---------- Cosmic backdrop ---------- */

.cosmic-backdrop {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.55;
    mix-blend-mode: screen;
    animation: drift 28s ease-in-out infinite alternate;
}

.orb-1 {
    width: 60vmax;
    height: 60vmax;
    top: -20vmax;
    left: -20vmax;
    background: radial-gradient(circle at 50% 50%, #818cf8, transparent 65%);
}

.orb-2 {
    width: 55vmax;
    height: 55vmax;
    bottom: -25vmax;
    right: -15vmax;
    background: radial-gradient(circle at 50% 50%, #c084fc, transparent 65%);
    animation-duration: 36s;
    animation-delay: -8s;
}

.orb-3 {
    width: 42vmax;
    height: 42vmax;
    top: 35%;
    left: 55%;
    background: radial-gradient(circle at 50% 50%, #06b6d4, transparent 65%);
    opacity: 0.35;
    animation-duration: 42s;
    animation-delay: -14s;
}

@keyframes drift {
    0%   { transform: translate3d(0, 0, 0) scale(1); }
    50%  { transform: translate3d(4vmax, -3vmax, 0) scale(1.08); }
    100% { transform: translate3d(-3vmax, 4vmax, 0) scale(0.96); }
}

.starfield {
    position: absolute;
    inset: 0;
}

.star {
    position: absolute;
    width: 2px;
    height: 2px;
    border-radius: 50%;
    background: #e0e0f0;
    box-shadow: 0 0 6px rgba(224, 224, 240, 0.6);
    animation-name: twinkle;
    animation-iteration-count: infinite;
    animation-timing-function: ease-in-out;
    animation-direction: alternate;
}

.star.size-2 { width: 3px; height: 3px; }
.star.size-3 { width: 1px; height: 1px; box-shadow: 0 0 4px rgba(129, 140, 248, 0.55); background: #818cf8; }

@keyframes twinkle {
    0%   { opacity: 0.1; transform: translateY(0); }
    50%  { opacity: 0.5; transform: translateY(-6px); }
    100% { opacity: 0.2; transform: translateY(4px); }
}

/* ---------- Layout ---------- */

.page {
    position: relative;
    z-index: 1;
}

.section {
    position: relative;
    min-height: 100vh;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 12vh 6vw;
}

.section-hero {
    flex-direction: column;
    text-align: center;
    overflow: hidden;
}

/* ---------- Hero / Lemniscate ---------- */

.lemniscate-wrap {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 0;
}

.lemniscate {
    width: min(1100px, 110vw);
    height: auto;
    opacity: 0.85;
    filter: drop-shadow(0 0 28px rgba(129, 140, 248, 0.35));
}

.lemniscate-track {
    fill: none;
    stroke: url(#infGradFaint);
    stroke-width: 1.2;
}

.lemniscate-path {
    fill: none;
    stroke: url(#infGrad);
    stroke-width: 1.6;
    stroke-linecap: round;
    stroke-dasharray: 320 1600;
    stroke-dashoffset: 0;
    animation: trace 6s linear infinite;
    opacity: 0.85;
}

@keyframes trace {
    0%   { stroke-dashoffset: 0; }
    100% { stroke-dashoffset: -1920; }
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 820px;
    padding: 0 1rem;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.65rem;
    font-family: var(--font-mono);
    font-size: 0.78rem;
    letter-spacing: 0.32em;
    text-transform: uppercase;
    color: var(--c-indigo);
    margin-bottom: 1.6rem;
    opacity: 0.9;
}

.eyebrow-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--c-cyan);
    box-shadow: 0 0 12px var(--c-cyan);
    animation: pulse 2.4s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.4; transform: scale(0.85); }
    50%      { opacity: 1;   transform: scale(1.15); }
}

.hero-title {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: clamp(3rem, 9vw, 7.5rem);
    line-height: 0.95;
    letter-spacing: -0.04em;
    background: linear-gradient(120deg, #06b6d4 0%, #818cf8 45%, #c084fc 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    background-size: 220% 220%;
    animation: shimmer 9s ease-in-out infinite;
    margin-bottom: 1.4rem;
}

.hero-dot {
    color: var(--c-purple);
    -webkit-text-fill-color: var(--c-purple);
}

@keyframes shimmer {
    0%   { background-position: 0% 50%; }
    50%  { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.hero-tagline {
    font-family: var(--font-body);
    font-size: clamp(1rem, 1.6vw, 1.25rem);
    color: rgba(224, 224, 240, 0.78);
    max-width: 560px;
    margin: 0 auto 2.2rem;
}

.hero-meta {
    display: inline-flex;
    align-items: center;
    gap: 1rem;
    padding: 0.6rem 1.1rem;
    border: 1px solid rgba(129, 140, 248, 0.22);
    border-radius: 999px;
    background: rgba(10, 10, 46, 0.55);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.meta-pill {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--c-star);
    opacity: 0.8;
}

.meta-divider {
    width: 1px;
    height: 14px;
    background: rgba(129, 140, 248, 0.4);
}

.scroll-indicator {
    position: absolute;
    bottom: 56px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.6rem;
    z-index: 3;
}

.scroll-line {
    width: 1px;
    height: 42px;
    background: linear-gradient(180deg, transparent, var(--c-indigo));
    animation: scroll-pulse 2.2s ease-in-out infinite;
}

@keyframes scroll-pulse {
    0%, 100% { opacity: 0.2; transform: scaleY(0.6); transform-origin: top; }
    50%      { opacity: 1;   transform: scaleY(1);   transform-origin: top; }
}

.scroll-label {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    letter-spacing: 0.4em;
    text-transform: uppercase;
    color: rgba(224, 224, 240, 0.55);
}

/* ---------- Glassmorphic Panels ---------- */

.section-panels {
    padding: 14vh 6vw;
}

.panel {
    position: relative;
    background: var(--c-panel);
    border: 1px solid var(--c-panel-border);
    border-radius: 14px;
    padding: 3.2rem clamp(1.6rem, 4vw, 3rem);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    box-shadow:
        0 30px 80px rgba(5, 5, 16, 0.55),
        inset 0 1px 0 rgba(255, 255, 255, 0.04);
    transition: transform 600ms cubic-bezier(0.2, 0.7, 0.2, 1),
                opacity 600ms cubic-bezier(0.2, 0.7, 0.2, 1),
                box-shadow 600ms ease;
    transform: translateY(28px);
    opacity: 0;
}

.panel.in-view {
    transform: translateY(0);
    opacity: 1;
    box-shadow:
        0 36px 90px rgba(5, 5, 16, 0.7),
        0 0 60px rgba(129, 140, 248, 0.08),
        inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.panel::before {
    content: "";
    position: absolute;
    inset: -1px;
    border-radius: 14px;
    padding: 1px;
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.45), rgba(129, 140, 248, 0.15) 40%, rgba(192, 132, 252, 0.45));
    -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
    -webkit-mask-composite: xor;
            mask-composite: exclude;
    pointer-events: none;
    opacity: 0.5;
}

.panel-narrow { width: min(560px, 100%); }
.panel-wide   { width: min(720px, 100%); }

.panel-eyebrow {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    letter-spacing: 0.34em;
    text-transform: uppercase;
    color: var(--c-cyan);
    margin-bottom: 1rem;
}

.panel-title {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: clamp(1.6rem, 3.2vw, 2.4rem);
    line-height: 1.1;
    letter-spacing: -0.02em;
    color: var(--c-star);
    margin-bottom: 1.4rem;
}

.panel-body {
    font-family: var(--font-body);
    font-weight: 400;
    font-size: 1rem;
    color: rgba(224, 224, 240, 0.78);
    margin-bottom: 1rem;
}

.panel-body + .panel-body {
    margin-top: 0;
}

.panel-data {
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
    margin-top: 1.6rem;
    padding: 0.6rem 1rem;
    border-radius: 8px;
    background: rgba(5, 5, 16, 0.5);
    border: 1px solid rgba(129, 140, 248, 0.2);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--c-indigo);
}

.data-arrow {
    color: var(--c-cyan);
}

.data-value {
    color: var(--c-purple);
    font-size: 1.1rem;
}

.panel-footer {
    margin-top: 2rem;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: rgba(224, 224, 240, 0.45);
}

.footer-hash {
    color: var(--c-indigo);
}

/* ---------- Lattice (architecture) ---------- */

.lattice {
    margin-top: 2rem;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.lattice-row {
    display: grid;
    grid-template-columns: 56px 180px 1fr;
    align-items: center;
    gap: 1.2rem;
    padding: 0.95rem 1rem;
    border: 1px solid rgba(129, 140, 248, 0.12);
    border-radius: 10px;
    background: linear-gradient(90deg, rgba(10, 10, 46, 0.45), rgba(10, 10, 46, 0.15));
    transition: border-color 300ms ease, transform 300ms ease, background 300ms ease;
}

.lattice-row:hover {
    border-color: rgba(192, 132, 252, 0.45);
    transform: translateX(4px);
    background: linear-gradient(90deg, rgba(20, 15, 50, 0.7), rgba(10, 10, 46, 0.25));
}

.lattice-key {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1.6rem;
    color: var(--c-cyan);
    text-align: center;
    background: linear-gradient(135deg, #06b6d4, #818cf8 60%, #c084fc);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.lattice-name {
    font-family: var(--font-display);
    font-weight: 500;
    font-size: 1rem;
    color: var(--c-star);
    letter-spacing: 0.02em;
}

.lattice-desc {
    font-family: var(--font-body);
    font-size: 0.92rem;
    color: rgba(224, 224, 240, 0.68);
    line-height: 1.55;
}

@media (max-width: 720px) {
    .lattice-row {
        grid-template-columns: 44px 1fr;
        grid-auto-rows: auto;
    }
    .lattice-desc {
        grid-column: 1 / -1;
        padding-top: 0.4rem;
    }
}

/* ---------- Signal grid ---------- */

.signal-grid {
    margin-top: 2rem;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.8rem;
}

.signal-cell {
    padding: 1rem 1.1rem;
    border: 1px solid rgba(129, 140, 248, 0.15);
    border-radius: 10px;
    background: rgba(5, 5, 16, 0.45);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    transition: border-color 300ms ease, background 300ms ease;
}

.signal-cell:hover {
    border-color: rgba(6, 182, 212, 0.4);
    background: rgba(10, 10, 46, 0.6);
}

.signal-label {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: rgba(224, 224, 240, 0.55);
}

.signal-value {
    font-family: var(--font-mono);
    font-size: 1.05rem;
    color: var(--c-indigo);
    letter-spacing: 0.02em;
}

@media (max-width: 520px) {
    .signal-grid {
        grid-template-columns: 1fr;
    }
}

/* ---------- Console ---------- */

.console {
    margin-top: 2rem;
    border: 1px solid rgba(129, 140, 248, 0.2);
    border-radius: 10px;
    background:
        linear-gradient(180deg, rgba(5, 5, 16, 0.7), rgba(10, 10, 46, 0.4));
    padding: 1.4rem 1.4rem 1rem;
    min-height: 130px;
    font-family: var(--font-mono);
}

.console-prompt {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    min-height: 2.2rem;
    font-size: 0.95rem;
    color: var(--c-star);
    flex-wrap: wrap;
}

.console-glyph {
    color: var(--c-purple);
    font-size: 1.2rem;
}

.console-text {
    color: var(--c-star);
    word-break: break-word;
}

.console-cursor {
    display: inline-block;
    width: 8px;
    height: 1.05rem;
    background: var(--c-indigo);
    box-shadow: 0 0 8px rgba(129, 140, 248, 0.6);
    animation: blink 1.05s steps(2, start) infinite;
    vertical-align: middle;
}

@keyframes blink {
    0%, 49%   { opacity: 1; }
    50%, 100% { opacity: 0; }
}

.console-hint {
    margin-top: 0.8rem;
    font-size: 0.7rem;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: rgba(224, 224, 240, 0.45);
}

.console.is-active .console-hint {
    opacity: 0.4;
}

/* ---------- Infinite bar ---------- */

.infinite-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 28px;
    z-index: 50;
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0 1.2rem;
    background: linear-gradient(180deg, rgba(5, 5, 16, 0.55), rgba(5, 5, 16, 0.92));
    border-top: 1px solid rgba(129, 140, 248, 0.22);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--c-indigo);
    overflow: hidden;
    white-space: nowrap;
}

.infinite-bar::before {
    content: "";
    position: absolute;
    top: 0;
    left: -20%;
    width: 40%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--c-cyan), var(--c-purple), transparent);
    animation: bar-sweep 6s linear infinite;
}

@keyframes bar-sweep {
    0%   { transform: translateX(0); }
    100% { transform: translateX(350%); }
}

.bar-label {
    color: rgba(224, 224, 240, 0.55);
}

.bar-counter {
    color: var(--c-indigo);
    letter-spacing: 0.22em;
}

.bar-divider {
    width: 1px;
    height: 12px;
    background: rgba(129, 140, 248, 0.3);
}

.bar-phase {
    color: var(--c-cyan);
}

.bar-zeta {
    color: var(--c-purple);
}

@media (max-width: 640px) {
    .infinite-bar {
        font-size: 0.62rem;
        gap: 0.6rem;
        padding: 0 0.7rem;
    }
    .bar-divider { display: none; }
}

/* ---------- Section spacing tweaks ---------- */

#manifesto, #architecture, #signals, #invocation {
    padding-top: 16vh;
    padding-bottom: 16vh;
}

#invocation { padding-bottom: 22vh; }