/* ============================================================
   emoji.css — Design "candy-lab / emoji playground"
   Thème : dark · rainbow burst · bubbly · maximalist joyful
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Nunito:ital,wght@0,400;0,600;0,700;0,800;0,900;1,400&family=IBM+Plex+Mono:wght@400;500&display=swap');

/* ── VARIABLES ─────────────────────────────────────────── */
:root {
    --bg:      #0d0d14;
    --bg2:     #13131e;
    --bg3:     #1a1a2e;
    --panel:   #16162a;
    --border:  rgba(255,255,255,.09);
    --border2: rgba(255,255,255,.05);

    --pink:    #f472b6;
    --orange:  #fb923c;
    --yellow:  #fbbf24;
    --green:   #4ade80;
    --teal:    #2dd4bf;
    --blue:    #60a5fa;
    --violet:  #a78bfa;

    --text:    #f0f0f8;
    --text2:   #9090b8;
    --text3:   #4a4a6a;

    --mono:    'IBM Plex Mono', 'Fira Code', monospace;
    --display: 'Nunito', system-ui, sans-serif;

    --r:       16px;
    --r-sm:    10px;
    --shadow:  0 16px 48px rgba(0,0,0,.5);
}

/* ── RESET ─────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
    font-family: var(--display);
    font-weight: 400;
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    min-height: 100vh;
    overflow-x: hidden;
}

/* ── FLOATING EMOJI CANVAS ─────────────────────────────── */
#float-canvas {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    opacity: .18;
}

/* ── SCROLL PROGRESS ───────────────────────────────────── */
#scroll-bar {
    position: fixed;
    top: 0; left: 0;
    height: 3px;
    width: 0%;
    z-index: 200;
    background: linear-gradient(90deg,
        var(--pink), var(--orange), var(--yellow),
        var(--green), var(--teal), var(--blue), var(--violet), var(--pink));
    background-size: 300% 100%;
    animation: rainbowShift 3s linear infinite;
    transition: width .08s linear;
}
@keyframes rainbowShift {
    0%   { background-position: 0% 50%; }
    100% { background-position: 100% 50%; }
}

/* ── HEADER ────────────────────────────────────────────── */
header {
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    background: rgba(13,13,20,.82);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 4px 30px rgba(0,0,0,.4);
}

.wrap { max-width: 1100px; margin: 0 auto; padding: 0 20px; }

.hero {
    display: flex;
    gap: 16px;
    align-items: flex-start;
    justify-content: space-between;
    padding: 18px 0 14px;
    flex-wrap: wrap;
}

.title { display: flex; gap: 14px; align-items: center; flex-wrap: wrap; }

/* Logo badge */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: rgba(255,255,255,.04);
    font-weight: 700;
    font-size: .85rem;
    box-shadow: var(--shadow);
    white-space: nowrap;
}
.badge .dot {
    width: 10px; height: 10px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--pink), var(--violet));
    box-shadow: 0 0 8px var(--pink);
    animation: dotPulse 2s ease-in-out infinite;
}
@keyframes dotPulse {
    0%,100% { transform: scale(1); box-shadow: 0 0 6px var(--pink); }
    50%      { transform: scale(1.3); box-shadow: 0 0 14px var(--pink); }
}

header h1 {
    font-size: clamp(1.1rem, 2.5vw, 1.4rem);
    font-weight: 800;
    letter-spacing: -.3px;
    background: linear-gradient(90deg, var(--text) 40%, var(--violet));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.sub {
    font-size: .82rem;
    color: var(--text2);
    margin-top: 4px;
    line-height: 1.5;
    max-width: 620px;
}

/* Action buttons */
.actions { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.btn {
    cursor: pointer;
    user-select: none;
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 9px 14px;
    border-radius: 12px;
    border: 1px solid var(--border);
    background: rgba(255,255,255,.05);
    color: var(--text);
    font-family: var(--display);
    font-size: .83rem;
    font-weight: 700;
    transition: transform .15s, background .15s, box-shadow .15s;
    white-space: nowrap;
}
.btn:hover { background: rgba(255,255,255,.09); transform: translateY(-2px); }
.btn:active { transform: translateY(0); }
.btn.primary {
    background: linear-gradient(135deg, rgba(244,114,182,.2), rgba(167,139,250,.2));
    border-color: rgba(244,114,182,.4);
    box-shadow: 0 4px 20px rgba(244,114,182,.15);
}
.btn.primary:hover { box-shadow: 0 6px 28px rgba(244,114,182,.25); }
.btn.run {
    background: linear-gradient(135deg, rgba(74,222,128,.18), rgba(45,212,191,.18));
    border-color: rgba(74,222,128,.4);
}
.btn.danger {
    background: rgba(248,113,113,.1);
    border-color: rgba(248,113,113,.3);
    color: #fca5a5;
}

/* ── MAIN LAYOUT ───────────────────────────────────────── */
main { position: relative; z-index: 2; padding: 20px 0 60px; }

.grid {
    display: grid;
    grid-template-columns: 1.25fr .75fr;
    gap: 16px;
    align-items: start;
}

/* ── CARDS ─────────────────────────────────────────────── */
.card {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: var(--r);
    overflow: hidden;
    box-shadow: var(--shadow);
    position: relative;
    opacity: 0;
    transform: translateY(16px);
    transition: opacity .45s ease, transform .45s ease, border-color .25s, box-shadow .25s;
}
.card.visible { opacity: 1; transform: translateY(0); }

/* Rainbow top border on hover */
.card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: linear-gradient(90deg,
        var(--pink), var(--orange), var(--yellow),
        var(--green), var(--teal), var(--blue), var(--violet));
    opacity: 0;
    transition: opacity .3s;
}
.card:hover::before { opacity: 1; }
.card:hover { border-color: rgba(255,255,255,.14); }

.card .hd {
    padding: 14px 18px 12px;
    border-bottom: 1px solid var(--border);
    background: rgba(255,255,255,.025);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}
.card .hd h2 {
    margin: 0;
    font-size: 1rem;
    font-weight: 800;
    color: var(--text);
}
.card .bd { padding: 18px; }

/* ── PILL / TAG ────────────────────────────────────────── */
.pill {
    font-family: var(--mono);
    font-size: .65rem;
    padding: 4px 10px;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: rgba(0,0,0,.25);
    color: var(--text2);
    white-space: nowrap;
    letter-spacing: .5px;
}

.tag {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: rgba(255,255,255,.04);
    font-size: .78rem;
    color: var(--text2);
    margin: 0 6px 6px 0;
    transition: border-color .15s, color .15s;
}
.tag:hover { border-color: var(--violet); color: var(--violet); }

/* ── FORM FIELDS ───────────────────────────────────────── */
.k {
    display: grid;
    gap: 14px;
    grid-template-columns: 1fr 1fr;
}

.field label {
    display: block;
    font-size: .75rem;
    font-weight: 700;
    color: var(--text2);
    margin-bottom: 7px;
    letter-spacing: .3px;
    text-transform: uppercase;
}
.field input,
.field select,
.field textarea {
    width: 100%;
    padding: 10px 13px;
    border-radius: 12px;
    border: 1px solid var(--border);
    background: rgba(6,6,14,.7);
    color: var(--text);
    outline: none;
    font-family: var(--display);
    font-size: .9rem;
    transition: border-color .2s, box-shadow .2s;
}
.field input:focus,
.field select:focus,
.field textarea:focus {
    border-color: rgba(167,139,250,.5);
    box-shadow: 0 0 0 3px rgba(167,139,250,.1);
}
.field textarea {
    min-height: 100px;
    font-family: var(--mono);
    font-size: .8rem;
    line-height: 1.6;
    resize: vertical;
}
.field textarea[readonly] {
    background: rgba(0,0,0,.35);
    color: var(--green);
    font-family: var(--mono);
    font-size: .78rem;
}

.hint {
    font-size: .75rem;
    color: var(--text2);
    margin-top: 7px;
    line-height: 1.55;
}
.hint b { color: var(--text); }

.hr { height: 1px; background: var(--border); margin: 18px 0; }

.row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }

/* ── NOTES / ALERTS ────────────────────────────────────── */
.note {
    border-radius: var(--r-sm);
    padding: 11px 14px;
    font-size: .85rem;
    line-height: 1.6;
    margin: 12px 0;
    border: 1px dashed;
}
.note      { border-color: rgba(96,165,250,.4);   background: rgba(96,165,250,.07);   color: #bfdbfe; }
.note.warn { border-color: rgba(251,191,36,.4);   background: rgba(251,191,36,.07);   color: #fde68a; }
.note.ok   { border-color: rgba(74,222,128,.4);   background: rgba(74,222,128,.07);   color: #bbf7d0; }

/* ── PRE / CODE ────────────────────────────────────────── */
code { font-family: var(--mono); font-size: .82em; color: var(--teal); }
pre {
    margin: 12px 0;
    padding: 16px;
    border-radius: var(--r-sm);
    border: 1px solid var(--border);
    background: rgba(0,0,0,.35);
    overflow-x: auto;
    font-family: var(--mono);
    font-size: .78rem;
    line-height: 1.65;
    color: var(--green);
}

/* ── LISTS ─────────────────────────────────────────────── */
ul { list-style: none; margin: 10px 0; padding: 0; }
ul li {
    position: relative;
    padding-left: 18px;
    margin-bottom: 8px;
    font-size: .9rem;
    color: var(--text2);
    line-height: 1.6;
}
ul li::before {
    content: '◈';
    position: absolute;
    left: 0;
    font-size: .65rem;
    color: var(--violet);
    top: 4px;
}
ul li b { color: var(--text); font-weight: 700; }

/* ── TOC SIDEBAR ───────────────────────────────────────── */
.toc a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 12px;
    border-radius: var(--r-sm);
    color: var(--text2);
    text-decoration: none;
    font-size: .88rem;
    font-weight: 600;
    transition: background .15s, color .15s, padding-left .15s;
    border: 1px solid transparent;
}
.toc a:hover {
    background: rgba(255,255,255,.05);
    color: var(--text);
    padding-left: 16px;
    border-color: var(--border);
}
.toc a small { color: var(--text3); font-weight: 400; font-size: .75rem; display: block; margin-top: 1px; }

/* ── EMOJI WALL ────────────────────────────────────────── */
.wall-title {
    font-size: .85rem;
    font-weight: 800;
    color: var(--text2);
    margin-bottom: 12px;
    letter-spacing: .5px;
    text-transform: uppercase;
}

.emoji-wall {
    display: grid;
    grid-template-columns: repeat(10, 1fr);
    gap: 6px;
}

.em {
    font-size: 22px;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 44px;
    border-radius: 12px;
    border: 1px solid var(--border);
    background: rgba(255,255,255,.04);
    cursor: pointer;
    transition: transform .15s cubic-bezier(.34,1.56,.64,1), background .15s, box-shadow .15s, border-color .15s;
    position: relative;
    overflow: hidden;
}
.em::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at center, rgba(255,255,255,.12) 0%, transparent 70%);
    opacity: 0;
    transition: opacity .15s;
}
.em:hover {
    transform: translateY(-4px) scale(1.15);
    background: rgba(255,255,255,.08);
    border-color: rgba(255,255,255,.2);
    box-shadow: 0 8px 20px rgba(0,0,0,.4);
    z-index: 2;
}
.em:hover::after { opacity: 1; }
.em:active { transform: scale(.9); }

/* ── VS PREVIEW ────────────────────────────────────────── */
#vs_preview {
    font-size: 32px;
    display: inline-block;
    transition: transform .25s cubic-bezier(.34,1.56,.64,1);
    vertical-align: middle;
}
#vs_preview.bump { animation: bump .3s cubic-bezier(.34,1.56,.64,1); }
@keyframes bump {
    0%   { transform: scale(1); }
    50%  { transform: scale(1.6) rotate(10deg); }
    100% { transform: scale(1); }
}

/* ── SECTION CARDS (théorie, etc.) ─────────────────────── */
.section-card {
    margin-top: 16px;
}

/* H3 dans les sections */
.card .bd h3 {
    font-size: .85rem;
    font-weight: 800;
    color: var(--text);
    margin: 16px 0 8px;
    text-transform: uppercase;
    letter-spacing: .5px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.card .bd h3::before {
    content: '';
    display: inline-block;
    width: 3px;
    height: 14px;
    border-radius: 2px;
    background: linear-gradient(180deg, var(--pink), var(--violet));
    flex-shrink: 0;
}

/* ── TOAST ─────────────────────────────────────────────── */
#toast {
    position: fixed;
    left: 50%;
    bottom: 24px;
    transform: translateX(-50%) translateY(20px);
    padding: 11px 18px;
    border-radius: 14px;
    border: 1px solid var(--border);
    background: rgba(13,13,20,.9);
    backdrop-filter: blur(14px);
    color: var(--text);
    font-size: .85rem;
    font-weight: 600;
    box-shadow: var(--shadow);
    z-index: 300;
    display: none;
    pointer-events: none;
    max-width: min(680px, 92vw);
    text-align: center;
    transition: transform .25s, opacity .25s;
}
#toast.show {
    display: block;
    animation: toastIn .25s ease both;
}
@keyframes toastIn {
    from { opacity: 0; transform: translateX(-50%) translateY(10px); }
    to   { opacity: 1; transform: translateX(-50%) translateY(0); }
}

/* ── FOOTER ────────────────────────────────────────────── */
footer {
    position: relative;
    z-index: 2;
    padding: 20px 20px;
    color: var(--text3);
    text-align: center;
    font-size: .78rem;
    border-top: 1px solid var(--border);
    font-family: var(--mono);
}
footer span { color: var(--text2); }

/* ── MUTED ─────────────────────────────────────────────── */
.muted { color: var(--text2); }

/* ── SCROLL TO TOP ─────────────────────────────────────── */
#top-btn {
    position: fixed;
    right: 22px; bottom: 26px;
    width: 44px; height: 44px;
    border-radius: 50%;
    background: var(--bg2);
    border: 1px solid var(--border);
    color: var(--text);
    font-size: 1.1rem;
    display: flex; align-items: center; justify-content: center;
    text-decoration: none;
    box-shadow: var(--shadow);
    opacity: 0; pointer-events: none;
    transform: translateY(10px);
    transition: opacity .3s, transform .3s, border-color .2s;
    z-index: 200;
}
#top-btn.show { opacity: 1; pointer-events: auto; transform: translateY(0); }
#top-btn:hover { border-color: var(--violet); box-shadow: 0 0 20px rgba(167,139,250,.3); }

/* ── RESPONSIVE ────────────────────────────────────────── */
@media (max-width: 920px) {
    .grid { grid-template-columns: 1fr; }
    .actions { justify-content: flex-start; }
}
@media (max-width: 620px) {
    .k { grid-template-columns: 1fr; }
    .emoji-wall { grid-template-columns: repeat(7, 1fr); }
    .hero { flex-direction: column; }
}
@media (max-width: 400px) {
    .emoji-wall { grid-template-columns: repeat(5, 1fr); }
}