.achievement-page {
    max-width: 1180px;
    margin: 0 auto;
    padding-top: 38px;
    padding-bottom: 72px
}

.achievement-hero {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 34px;
    border: 1px solid #dbeafe;
    border-radius: 24px;
    background: linear-gradient(135deg, #eff6ff, #fff 58%, #f5f3ff);
    box-shadow: 0 18px 50px rgba(37, 99, 235, .08);
    margin-bottom: 24px
}

.achievement-hero h1 {
    font-size: clamp(30px, 5vw, 48px);
    margin: 8px 0 10px
}

.achievement-hero p {
    margin: 0;
    color: #64748b
}

.achievement-kicker {
    display: inline-flex;
    padding: 8px 13px;
    border-radius: 999px;
    background: #dbeafe;
    color: #1d4ed8;
    font-weight: 700
}

.achievement-loading,
.achievement-error,
.achievement-empty {
    padding: 46px 24px;
    text-align: center;
    border: 1px dashed #cbd5e1;
    border-radius: 20px;
    background: #fff;
    color: #64748b
}

.achievement-error span {
    font-size: 44px
}

.achievement-error button,
.achievement-inline-login {
    border: 0;
    border-radius: 10px;
    padding: 10px 16px;
    background: #2563eb;
    color: #fff;
    font-weight: 700;
    cursor: pointer
}

.achievement-overview {
    display: grid;
    grid-template-columns: auto 1fr;
    align-items: center;
    gap: 28px;
    padding: 28px;
    border-radius: 22px;
    background: #0f172a;
    color: #fff;
    margin-bottom: 22px
}

.achievement-ring {
    --achievement-percent: 0;
    width: 138px;
    height: 138px;
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
    background: conic-gradient(#60a5fa calc(var(--achievement-percent)*1%), rgba(255, 255, 255, .14) 0)
}

.achievement-ring:after {
    content: "";
    position: absolute;
    inset: 11px;
    border-radius: 50%;
    background: #0f172a
}

.achievement-ring strong,
.achievement-ring span {
    position: relative;
    z-index: 1
}

.achievement-ring strong {
    font-size: 28px
}

.achievement-ring span {
    font-size: 12px;
    color: #cbd5e1
}

.achievement-overview-copy h2 {
    margin: 0 0 8px
}

.achievement-overview-copy p {
    margin: 0 0 18px;
    color: #cbd5e1
}

.achievement-overall-progress {
    height: 10px;
    border-radius: 999px;
    background: rgba(255, 255, 255, .14);
    overflow: hidden
}

.achievement-overall-progress span {
    display: block;
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, #60a5fa, #a78bfa);
    transition: width .35s ease
}

.achievement-filters {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    align-items: center;
    margin-bottom: 12px
}

.achievement-filters button,
.achievement-filters select {
    border: 1px solid #dbe3ee;
    border-radius: 12px;
    background: #fff;
    padding: 11px 15px;
    font: inherit;
    cursor: pointer
}

.achievement-filters button.active {
    background: #2563eb;
    border-color: #2563eb;
    color: #fff;
    font-weight: 700
}

.achievement-filters select {
    margin-left: auto
}

.achievement-result-count {
    color: #64748b;
    margin: 12px 0 16px
}

.achievement-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px
}

.achievement-card {
    display: grid;
    grid-template-columns: 64px 1fr;
    gap: 15px;
    padding: 20px;
    border: 1px solid #e2e8f0;
    border-radius: 18px;
    background: #fff;
    transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease
}

.achievement-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 32px rgba(15, 23, 42, .08)
}

.achievement-card.is-unlocked {
    border-color: #bfdbfe;
    background: linear-gradient(145deg, #fff, #eff6ff)
}

.achievement-card.is-locked {
    filter: saturate(.65)
}

.achievement-icon {
    width: 58px;
    height: 58px;
    border-radius: 16px;
    display: grid;
    place-items: center;
    font-size: 30px;
    background: #f1f5f9
}

.is-unlocked .achievement-icon {
    background: #dbeafe
}

.achievement-title-row {
    display: flex;
    justify-content: space-between;
    gap: 10px;
    align-items: flex-start
}

.achievement-title-row h3 {
    margin: 0;
    font-size: 18px
}

.achievement-state {
    font-size: 11px;
    font-weight: 700;
    white-space: nowrap;
    padding: 5px 8px;
    border-radius: 999px;
    background: #e2e8f0;
    color: #475569
}

.is-unlocked .achievement-state {
    background: #dcfce7;
    color: #15803d
}

.achievement-content p {
    margin: 6px 0 13px;
    color: #64748b;
    font-size: 14px
}

.achievement-progress {
    height: 8px;
    border-radius: 999px;
    background: #e2e8f0;
    overflow: hidden
}

.achievement-progress span {
    display: block;
    height: 100%;
    border-radius: inherit;
    background: #94a3b8
}

.is-unlocked .achievement-progress span {
    background: linear-gradient(90deg, #3b82f6, #8b5cf6)
}

.achievement-content small {
    display: block;
    text-align: right;
    margin-top: 6px;
    color: #64748b
}

.achievement-preview {
    margin-top: 26px
}

.achievement-preview-header {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    align-items: end;
    margin-bottom: 14px
}

.achievement-preview-header h2 {
    margin: 0
}

.achievement-preview-header p {
    margin: 4px 0 0;
    color: #64748b
}

.achievement-preview-link {
    white-space: nowrap
}

.achievement-preview-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px
}

.achievement-card.is-compact {
    grid-template-columns: 50px 1fr;
    padding: 14px
}

.achievement-card.is-compact .achievement-icon {
    width: 46px;
    height: 46px;
    font-size: 24px
}

.achievement-card.is-compact .achievement-title-row h3 {
    font-size: 15px
}

.achievement-card.is-compact .achievement-content p {
    display: none
}

.achievement-card.is-compact .achievement-state {
    display: none
}

@media(max-width:760px) {
    .achievement-hero {
        align-items: flex-start;
        flex-direction: column;
        padding: 25px
    }

    .achievement-overview {
        grid-template-columns: 1fr;
        text-align: center
    }

    .achievement-ring {
        margin: auto
    }

    .achievement-grid,
    .achievement-preview-grid {
        grid-template-columns: 1fr
    }

    .achievement-filters select {
        margin-left: 0;
        width: 100%
    }

    .achievement-title-row {
        display: block
    }

    .achievement-state {
        display: inline-flex;
        margin-top: 7px
    }
}

@media(max-width:480px) {
    .achievement-card {
        grid-template-columns: 50px 1fr;
        padding: 15px
    }

    .achievement-icon {
        width: 46px;
        height: 46px;
        font-size: 24px
    }

    .achievement-preview-header {
        align-items: flex-start;
        flex-direction: column
    }
}
/* ===== Badge UI 3.2 ===== */
.achievement-card {
    position: relative;
    overflow: hidden;
}

.achievement-card.is-unlocked::before {
    content: "";
    position: absolute;
    inset: 0 auto 0 0;
    width: 4px;
    background: linear-gradient(180deg, #3b82f6, #8b5cf6);
}

.achievement-card.is-locked .achievement-icon {
    filter: grayscale(1);
    opacity: .72;
}

.achievement-card.is-locked::after {
    content: "🔒";
    position: absolute;
    right: 14px;
    bottom: 12px;
    font-size: 14px;
    opacity: .45;
}

.achievement-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-top: 7px;
}

.achievement-meta small {
    margin-top: 0;
    text-align: left;
}

.achievement-unlocked-date {
    color: #15803d !important;
    font-weight: 700;
}

.achievement-card.is-unlocked .achievement-icon {
    box-shadow: inset 0 0 0 1px rgba(37, 99, 235, .12), 0 10px 24px rgba(37, 99, 235, .12);
}

@media (max-width: 640px) {
    .achievement-meta {
        align-items: flex-start;
        flex-direction: column;
        gap: 3px;
    }

    .achievement-card {
        grid-template-columns: 52px minmax(0, 1fr);
        padding: 16px;
    }

    .achievement-icon {
        width: 48px;
        height: 48px;
        font-size: 25px;
        border-radius: 14px;
    }
}

/* V0.93 - 3.5: Achievement page hoàn chỉnh */
.achievement-stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin:0 0 22px}.achievement-stats article{display:flex;align-items:center;gap:13px;padding:18px;border:1px solid #e2e8f0;border-radius:16px;background:#fff;box-shadow:0 8px 24px rgba(15,23,42,.04)}.achievement-stats article>span{width:44px;height:44px;display:grid;place-items:center;border-radius:13px;background:#eff6ff;font-size:22px}.achievement-stats strong,.achievement-stats small{display:block}.achievement-stats strong{font-size:22px;color:#0f172a}.achievement-stats small{margin-top:2px;color:#64748b}.achievement-toolbar{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:12px}.achievement-toolbar .achievement-filters{margin:0}.achievement-toolbar select{border:1px solid #dbe3ee;border-radius:12px;background:#fff;padding:11px 15px;font:inherit;cursor:pointer;margin-left:auto}.achievement-search{display:flex;align-items:center;gap:7px;min-width:220px;padding:0 12px;border:1px solid #dbe3ee;border-radius:12px;background:#fff}.achievement-search input{width:100%;border:0;outline:0;padding:11px 0;font:inherit;background:transparent}.achievement-card{cursor:pointer;outline:none}.achievement-card:focus-visible{box-shadow:0 0 0 4px rgba(37,99,235,.18);border-color:#2563eb}.achievement-meta{display:flex;align-items:center;justify-content:space-between;gap:10px}.achievement-content .achievement-meta small{margin-top:6px;text-align:left}.achievement-unlocked-date{color:#15803d!important}.achievement-modal[hidden]{display:none}.achievement-modal{position:fixed;inset:0;z-index:10000;display:grid;place-items:center;padding:20px}.achievement-modal-backdrop{position:absolute;inset:0;border:0;background:rgba(15,23,42,.62);backdrop-filter:blur(5px);cursor:default}.achievement-modal-panel{position:relative;z-index:1;width:min(470px,100%);padding:30px;border-radius:24px;background:#fff;box-shadow:0 28px 80px rgba(15,23,42,.3);animation:achievementModalIn .22s ease}.achievement-modal-close{position:absolute;top:14px;right:14px;width:36px;height:36px;border:0;border-radius:50%;background:#f1f5f9;font-size:24px;cursor:pointer}.achievement-modal-icon{width:78px;height:78px;display:grid;place-items:center;border-radius:22px;background:linear-gradient(145deg,#dbeafe,#ede9fe);font-size:42px;margin-bottom:16px}.achievement-modal-state{display:inline-flex;padding:6px 10px;border-radius:999px;background:#e2e8f0;color:#475569;font-size:12px;font-weight:800}.achievement-modal-state.is-unlocked{background:#dcfce7;color:#15803d}.achievement-modal-panel h2{margin:12px 0 7px;font-size:26px}.achievement-modal-panel>p{color:#64748b}.achievement-modal-category{display:inline-flex;margin:5px 0 16px;padding:7px 10px;border-radius:9px;background:#eff6ff;color:#1d4ed8;font-size:13px;font-weight:700}.achievement-modal-progress{height:10px}.achievement-modal-progress span{background:linear-gradient(90deg,#3b82f6,#8b5cf6)}.achievement-modal-numbers{display:flex;justify-content:space-between;gap:12px;margin-top:9px}.achievement-modal-numbers small{color:#64748b}.achievement-modal-tip{margin:20px 0 0!important;padding:13px 15px;border-radius:12px;background:#f8fafc;color:#475569!important;font-size:14px}.achievement-modal-open{overflow:hidden}@keyframes achievementModalIn{from{opacity:0;transform:translateY(12px) scale(.97)}to{opacity:1;transform:none}}
@media(max-width:900px){.achievement-stats{grid-template-columns:repeat(2,minmax(0,1fr))}.achievement-toolbar select{margin-left:0}.achievement-search{flex:1}}
@media(max-width:640px){.achievement-page{padding-top:20px}.achievement-hero{align-items:flex-start;flex-direction:column;padding:24px}.achievement-overview{grid-template-columns:1fr;text-align:center}.achievement-ring{margin:auto}.achievement-grid{grid-template-columns:1fr}.achievement-stats{grid-template-columns:1fr 1fr}.achievement-toolbar{align-items:stretch}.achievement-toolbar .achievement-filters{width:100%}.achievement-toolbar .achievement-filters button{flex:1;padding:10px 8px}.achievement-search,.achievement-toolbar select{width:100%}.achievement-card{grid-template-columns:52px 1fr;padding:16px}.achievement-icon{width:50px;height:50px;font-size:26px}.achievement-title-row{display:block}.achievement-state{display:inline-flex;margin-top:7px}.achievement-meta{display:block}.achievement-modal-panel{padding:24px}.achievement-modal-icon{width:66px;height:66px;font-size:36px}}
@media(max-width:420px){.achievement-stats{grid-template-columns:1fr}}