/* ==========================================================
   BAMBU AD ANALYZER — animated premium experience
   ========================================================== */

.bambu-analyzer {
    --bx-primary: #0b1020;
    --bx-accent: #6c5cff;
    --bx-accent-2: #ff4da6;
    --bx-accent-3: #22d3a8;
    --bx-text: #0b1020;
    --bx-muted: #5b6478;
    --bx-surface: #ffffff;
    --bx-surface-2: #f4f6fb;
    --bx-border: rgba(11, 16, 32, .08);
    --bx-shadow: 0 20px 60px rgba(11, 16, 32, .12);
    --bx-shadow-lg: 0 40px 80px rgba(11, 16, 32, .18);
    --bx-radius: 20px;

    position: relative;
    isolation: isolate;
    padding: 80px 20px 120px;
    overflow: hidden;
    background: radial-gradient(1200px 600px at 20% -10%, #eef0ff 0%, transparent 60%),
                radial-gradient(900px 500px at 90% 10%, #ffe8f4 0%, transparent 55%),
                linear-gradient(180deg, #fafbff 0%, #ffffff 100%);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, system-ui, sans-serif;
    color: var(--bx-text);
}

/* Animated background */
.bambu-analyzer__bg {
    position: absolute; inset: 0; z-index: -1; overflow: hidden; pointer-events: none;
}
.bambu-blob {
    position: absolute; border-radius: 50%; filter: blur(60px); opacity: .55;
    animation: bx-float 18s ease-in-out infinite;
}
.bambu-blob--1 { width: 520px; height: 520px; background: #6c5cff; top: -120px; left: -80px; }
.bambu-blob--2 { width: 440px; height: 440px; background: #ff4da6; top: 40%; right: -100px; animation-delay: -4s; }
.bambu-blob--3 { width: 380px; height: 380px; background: #22d3a8; bottom: -120px; left: 30%; animation-delay: -8s; }
@keyframes bx-float {
    0%, 100% { transform: translate(0,0) scale(1); }
    33%      { transform: translate(40px,-30px) scale(1.08); }
    66%      { transform: translate(-30px,50px) scale(.95); }
}
.bambu-grid-lines {
    position: absolute; inset: 0;
    background-image:
        linear-gradient(rgba(11,16,32,.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(11,16,32,.04) 1px, transparent 1px);
    background-size: 48px 48px;
    mask-image: radial-gradient(ellipse at center, #000 30%, transparent 80%);
}

/* Hero */
.bambu-analyzer__hero { max-width: 900px; margin: 0 auto 48px; text-align: center; }
.bambu-analyzer__badge {
    display: inline-block; padding: 8px 16px; border-radius: 999px;
    background: linear-gradient(135deg, #6c5cff 0%, #ff4da6 100%);
    color: #fff; font-weight: 600; font-size: .85rem;
    box-shadow: 0 8px 24px rgba(108,92,255,.35);
    animation: bx-pulse 2.4s ease-in-out infinite;
}
@keyframes bx-pulse {
    0%, 100% { box-shadow: 0 8px 24px rgba(108,92,255,.35); }
    50%      { box-shadow: 0 12px 36px rgba(255,77,166,.5); }
}
.bambu-analyzer__title {
    font-size: clamp(2.2rem, 5vw, 4rem);
    font-weight: 800; letter-spacing: -.03em; line-height: 1.05;
    margin: 24px 0 20px;
}
.bambu-analyzer__title .bambu-kinetic {
    display: block;
    animation: bx-rise .7s cubic-bezier(.2,.8,.2,1) both;
}
.bambu-analyzer__title .bambu-kinetic:nth-child(2) { animation-delay: .12s; }
.bambu-analyzer__title .bambu-kinetic:nth-child(3) { animation-delay: .24s; }
.bambu-kinetic--accent {
    background: linear-gradient(135deg, #6c5cff 0%, #ff4da6 50%, #22d3a8 100%);
    background-size: 200% 200%;
    -webkit-background-clip: text; background-clip: text; color: transparent;
    animation: bx-rise .7s cubic-bezier(.2,.8,.2,1) both, bx-shine 6s ease-in-out infinite;
}
@keyframes bx-rise { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }
@keyframes bx-shine { 0%, 100% { background-position: 0% 50%; } 50% { background-position: 100% 50%; } }
.bambu-analyzer__subtitle {
    font-size: 1.15rem; color: var(--bx-muted); max-width: 680px; margin: 0 auto 32px;
    line-height: 1.6;
}
.bambu-analyzer__stats {
    display: flex; gap: 24px; justify-content: center; flex-wrap: wrap;
}
.bambu-analyzer__stats > div {
    background: var(--bx-surface); padding: 14px 22px; border-radius: 14px;
    box-shadow: var(--bx-shadow); min-width: 140px;
}
.bambu-analyzer__stats strong {
    display: block; font-size: 1.4rem; font-weight: 800; color: var(--bx-accent);
}
.bambu-analyzer__stats span { font-size: .82rem; color: var(--bx-muted); }

/* Wizard container */
.bambu-wizard {
    max-width: 820px; margin: 0 auto;
    background: var(--bx-surface); border-radius: 28px;
    box-shadow: var(--bx-shadow-lg);
    padding: 32px; position: relative;
    border: 1px solid var(--bx-border);
}

/* Progress */
.bambu-progress { margin-bottom: 32px; }
.bambu-progress__bar {
    height: 6px; border-radius: 999px;
    background: linear-gradient(90deg, var(--bx-accent), var(--bx-accent-2));
    width: 25%; transition: width .6s cubic-bezier(.2,.8,.2,1);
    box-shadow: 0 2px 8px rgba(108,92,255,.35);
}
.bambu-progress__steps { display: flex; justify-content: space-between; margin-top: 12px; }
.bambu-progress__step {
    width: 32px; height: 32px; border-radius: 50%;
    background: var(--bx-surface-2); color: var(--bx-muted);
    font-weight: 700; font-size: .85rem;
    display: inline-flex; align-items: center; justify-content: center;
    border: 2px solid transparent;
    transition: all .35s;
}
.bambu-progress__step--active {
    background: linear-gradient(135deg, var(--bx-accent), var(--bx-accent-2));
    color: #fff; transform: scale(1.1);
    box-shadow: 0 6px 16px rgba(108,92,255,.45);
}
.bambu-progress__step--done { background: var(--bx-accent-3); color: #fff; }

/* Steps */
.bambu-step { display: none; animation: bx-fade-in .5s ease both; }
.bambu-step--active { display: block; }
.bambu-step__head { margin-bottom: 24px; }
.bambu-step__num {
    display: inline-block; font-family: 'SF Mono', Menlo, monospace;
    font-size: .85rem; color: var(--bx-accent);
    letter-spacing: .2em; font-weight: 700;
}
.bambu-step__head h2 { font-size: 1.7rem; margin: 6px 0 6px; font-weight: 800; letter-spacing: -.02em; }
.bambu-step__head p { color: var(--bx-muted); margin: 0; font-size: .95rem; }

/* Fields */
.bambu-field { margin-bottom: 20px; }
.bambu-field label {
    display: block; font-size: .82rem; font-weight: 700;
    color: var(--bx-text); margin-bottom: 8px;
    text-transform: uppercase; letter-spacing: .08em;
}
.bambu-field input, .bambu-field select {
    width: 100%; padding: 14px 16px; font-size: 1rem;
    border: 2px solid var(--bx-border); border-radius: 12px;
    background: var(--bx-surface-2); color: var(--bx-text);
    transition: all .2s; font-family: inherit;
}
.bambu-field input:focus, .bambu-field select:focus {
    outline: none; border-color: var(--bx-accent);
    background: var(--bx-surface);
    box-shadow: 0 0 0 4px rgba(108,92,255,.15);
}

/* Chips */
.bambu-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.bambu-chips span {
    padding: 10px 16px; border: 2px solid var(--bx-border);
    border-radius: 999px; background: var(--bx-surface-2);
    font-size: .92rem; font-weight: 600; cursor: pointer;
    transition: all .2s; user-select: none;
}
.bambu-chips span:hover { border-color: var(--bx-accent); transform: translateY(-2px); }
.bambu-chips span.bx-active {
    background: linear-gradient(135deg, var(--bx-accent), var(--bx-accent-2));
    color: #fff; border-color: transparent;
    box-shadow: 0 8px 20px rgba(108,92,255,.35);
}

/* Dropzone */
.bambu-dropzone {
    position: relative; border: 2.5px dashed rgba(108,92,255,.4);
    border-radius: 20px; padding: 48px 24px; text-align: center;
    background: linear-gradient(135deg, rgba(108,92,255,.04), rgba(255,77,166,.04));
    transition: all .25s; cursor: pointer; overflow: hidden;
}
.bambu-dropzone.bx-drag, .bambu-dropzone:hover {
    border-color: var(--bx-accent); transform: scale(1.01);
    background: linear-gradient(135deg, rgba(108,92,255,.08), rgba(255,77,166,.08));
}
.bambu-dropzone input {
    position: absolute; inset: 0; opacity: 0; cursor: pointer;
}
.bambu-dropzone__icon { font-size: 2.5rem; animation: bx-bounce 2s ease-in-out infinite; }
@keyframes bx-bounce { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }
.bambu-dropzone__text { margin: 12px 0 6px; font-size: 1.05rem; }
.bambu-dropzone__hint { color: var(--bx-muted); font-size: .85rem; }
.bambu-dropzone__preview {
    display: none; max-width: 100%; max-height: 260px; margin: 16px auto 0;
    border-radius: 12px; box-shadow: var(--bx-shadow);
}
.bambu-dropzone.bx-has-file .bambu-dropzone__preview { display: block; }
.bambu-dropzone.bx-has-file .bambu-dropzone__icon,
.bambu-dropzone.bx-has-file .bambu-dropzone__text,
.bambu-dropzone.bx-has-file .bambu-dropzone__hint { display: none; }

/* Actions */
.bambu-step__actions {
    display: flex; justify-content: space-between; gap: 12px; margin-top: 32px;
}
.bambu-step__actions button {
    padding: 14px 28px; font-size: 1rem; font-weight: 700;
    border-radius: 12px; border: 0; cursor: pointer;
    transition: all .2s; font-family: inherit;
    display: inline-flex; align-items: center; gap: 8px;
}
.bambu-btn-back {
    background: var(--bx-surface-2); color: var(--bx-text);
}
.bambu-btn-back:hover { background: rgba(11,16,32,.08); }
.bambu-btn-next, .bambu-btn-submit {
    background: linear-gradient(135deg, var(--bx-accent), var(--bx-accent-2));
    color: #fff; margin-left: auto;
    box-shadow: 0 10px 24px rgba(108,92,255,.4);
    position: relative; overflow: hidden;
}
.bambu-btn-next:hover, .bambu-btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 32px rgba(108,92,255,.55);
}
.bambu-btn-submit { padding: 16px 36px; font-size: 1.08rem; }
.bambu-btn-submit__loader {
    display: none; width: 18px; height: 18px;
    border: 2.5px solid rgba(255,255,255,.3);
    border-top-color: #fff; border-radius: 50%;
    animation: bx-spin .8s linear infinite;
}
.bambu-btn-submit.bx-loading .bambu-btn-submit__text { display: none; }
.bambu-btn-submit.bx-loading .bambu-btn-submit__loader { display: inline-block; }
@keyframes bx-spin { to { transform: rotate(360deg); } }

/* Loader */
.bambu-loader {
    text-align: center; padding: 40px 0;
}
.bambu-loader__ring {
    width: 96px; height: 96px; margin: 0 auto 24px;
    border-radius: 50%; position: relative;
    background: conic-gradient(from 0deg, var(--bx-accent), var(--bx-accent-2), var(--bx-accent-3), var(--bx-accent));
    animation: bx-spin 2s linear infinite;
}
.bambu-loader__ring::after {
    content: ''; position: absolute; inset: 8px;
    background: var(--bx-surface); border-radius: 50%;
}
.bambu-loader__steps {
    max-width: 420px; margin: 0 auto; text-align: left;
}
.bambu-loader__step {
    opacity: .3; padding: 6px 0; font-size: 1rem;
    transition: all .4s;
}
.bambu-loader__step.bx-done { opacity: 1; color: var(--bx-accent-3); font-weight: 600; }
.bambu-loader__step.bx-done::before { content: '✓ '; color: var(--bx-accent-3); font-weight: 800; }

/* Result */
.bambu-result { animation: bx-fade-in .8s ease both; }
.bambu-result__score {
    text-align: center; margin-bottom: 40px;
}
.bambu-score-ring { position: relative; width: 220px; height: 220px; margin: 0 auto 16px; }
.bambu-score-ring svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.bambu-score-ring__track {
    fill: none; stroke: rgba(11,16,32,.06); stroke-width: 14;
}
.bambu-score-ring__fill {
    fill: none; stroke: url(#bx-grad); stroke-width: 14; stroke-linecap: round;
    stroke-dasharray: 540; stroke-dashoffset: 540;
    transition: stroke-dashoffset 1.6s cubic-bezier(.2,.8,.2,1);
    stroke: var(--bx-accent);
}
.bambu-score-ring__center {
    position: absolute; inset: 0;
    display: flex; flex-direction: column; align-items: center; justify-content: center;
}
.bambu-score-ring__num {
    font-size: 3.8rem; font-weight: 800; letter-spacing: -.03em;
    background: linear-gradient(135deg, var(--bx-accent), var(--bx-accent-2));
    -webkit-background-clip: text; background-clip: text; color: transparent;
    line-height: 1;
}
.bambu-score-ring__label { color: var(--bx-muted); font-weight: 600; font-size: .9rem; margin-top: 4px; }
.bambu-result__verdict {
    font-size: 1.3rem; font-weight: 700; margin-top: 12px;
}

.bambu-result__chart {
    background: var(--bx-surface-2); border-radius: var(--bx-radius);
    padding: 24px; margin-bottom: 32px;
}
.bambu-result__chart h3 { margin: 0 0 16px; font-size: 1.1rem; font-weight: 700; }
.bambu-result__chart canvas { max-height: 320px; }

.bambu-result__cols {
    display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 32px;
}
@media (max-width: 680px) { .bambu-result__cols { grid-template-columns: 1fr; } }
.bambu-result__col {
    padding: 24px; border-radius: var(--bx-radius);
    animation: bx-slide-up .6s ease both;
}
.bambu-result__col--good {
    background: linear-gradient(135deg, rgba(34,211,168,.12), rgba(34,211,168,.04));
    border: 1px solid rgba(34,211,168,.25);
}
.bambu-result__col--bad {
    background: linear-gradient(135deg, rgba(255,77,166,.12), rgba(255,77,166,.04));
    border: 1px solid rgba(255,77,166,.25);
    animation-delay: .15s;
}
.bambu-result__col h3 { margin: 0 0 12px; font-size: 1.05rem; font-weight: 700; }
.bambu-result__col ul { margin: 0; padding: 0; list-style: none; }
.bambu-result__col li {
    padding: 8px 0; border-bottom: 1px dashed rgba(11,16,32,.08);
    font-size: .95rem; line-height: 1.5;
}
.bambu-result__col li:last-child { border-bottom: 0; }

.bambu-result__reco {
    padding: 28px; border-radius: var(--bx-radius); margin-bottom: 32px;
    background: linear-gradient(135deg, #0b1020 0%, #1a1f3a 100%);
    color: #fff;
}
.bambu-result__reco h3 {
    margin: 0 0 16px; font-size: 1.15rem; font-weight: 700;
    color: #fff;
}
.bambu-result__reco ol {
    margin: 0; padding-left: 24px;
    counter-reset: reco; list-style: none;
}
.bambu-result__reco li {
    counter-increment: reco; position: relative;
    padding: 12px 0 12px 20px; line-height: 1.6;
    border-bottom: 1px solid rgba(255,255,255,.08);
}
.bambu-result__reco li::before {
    content: counter(reco);
    position: absolute; left: -20px; top: 14px;
    background: linear-gradient(135deg, var(--bx-accent), var(--bx-accent-2));
    width: 26px; height: 26px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: .78rem; font-weight: 800;
}
.bambu-result__reco li:last-child { border-bottom: 0; }

.bambu-result__cta {
    text-align: center; padding: 32px 24px; border-radius: var(--bx-radius);
    background: linear-gradient(135deg, var(--bx-accent) 0%, var(--bx-accent-2) 100%);
    color: #fff;
}
.bambu-result__cta h3 { margin: 0 0 8px; font-size: 1.6rem; font-weight: 800; color: #fff; }
.bambu-result__cta p { margin: 0 0 20px; opacity: .92; }
.bambu-result__cta-btns { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.bambu-cta-primary, .bambu-cta-ghost {
    padding: 14px 28px; border-radius: 12px; font-weight: 700;
    font-size: 1rem; text-decoration: none; transition: all .2s;
    display: inline-block;
}
.bambu-cta-primary {
    background: #fff; color: var(--bx-accent);
    box-shadow: 0 8px 20px rgba(0,0,0,.18);
}
.bambu-cta-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 28px rgba(0,0,0,.28); }
.bambu-cta-ghost {
    background: rgba(255,255,255,.15); color: #fff;
    border: 1.5px solid rgba(255,255,255,.4);
}
.bambu-cta-ghost:hover { background: rgba(255,255,255,.25); }

.bambu-error {
    padding: 16px 20px; border-radius: 12px;
    background: rgba(255,77,166,.12); color: #b32476;
    border: 1px solid rgba(255,77,166,.3);
    font-weight: 600; text-align: center;
}

@keyframes bx-fade-in { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
@keyframes bx-slide-up { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: translateY(0); } }

/* Mobile tweaks */
@media (max-width: 640px) {
    .bambu-analyzer { padding: 48px 12px 80px; }
    .bambu-wizard { padding: 20px; border-radius: 20px; }
    .bambu-step__head h2 { font-size: 1.35rem; }
    .bambu-score-ring { width: 180px; height: 180px; }
    .bambu-score-ring__num { font-size: 3rem; }
    .bambu-step__actions { flex-direction: column-reverse; }
    .bambu-step__actions button { width: 100%; justify-content: center; }
    .bambu-btn-next, .bambu-btn-submit { margin-left: 0; }
}