/* ═══════════════════════════════════════════════════════════════
   CryptoSAS — Thème dark professionnel
   ═══════════════════════════════════════════════════════════════ */

:root {
    --bg:            #0f1117;
    --surface:       #1a1d27;
    --surface-2:     #222536;
    --surface-3:     #2a2e42;
    --border:        #2d3148;
    --border-light:  #3a3f5c;
    --primary:       #4f6ef7;
    --primary-hover: #6b85f8;
    --primary-dim:   rgba(79,110,247,0.15);
    --text:          #e2e8f0;
    --text-muted:    #94a3b8;
    --text-dim:      #64748b;
    --success:       #22c55e;
    --success-dim:   rgba(34,197,94,0.15);
    --danger:        #ef4444;
    --danger-dim:    rgba(239,68,68,0.15);
    --warning:       #f59e0b;
    --warning-dim:   rgba(245,158,11,0.15);
    --radius:        8px;
    --radius-lg:     12px;
    --shadow:        0 4px 20px rgba(0,0,0,0.4);
    --shadow-sm:     0 2px 8px rgba(0,0,0,0.3);
    --header-h:      60px;
    --sidebar-w:     260px;
}

/* ── Reset ─────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { height: 100%; }

body {
    font-family: system-ui, -apple-system, 'Segoe UI', Helvetica, Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    font-size: 15px;
    line-height: 1.6;
    min-height: 100%;
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── Header ────────────────────────────────────────────────── */
.app-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    height: var(--header-h);
}
.header-inner {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
    height: 100%;
    display: flex;
    align-items: center;
    gap: 24px;
}
.logo {
    font-size: 20px;
    font-weight: 700;
    color: var(--text);
    text-decoration: none;
    letter-spacing: -0.3px;
}
.logo:hover { color: var(--primary); text-decoration: none; }
.header-nav {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-left: auto;
}
.nav-link {
    padding: 6px 12px;
    border-radius: var(--radius);
    color: var(--text-muted);
    font-size: 14px;
    text-decoration: none;
    transition: color .15s, background .15s;
}
.nav-link:hover, .nav-link.active {
    color: var(--text);
    background: var(--surface-2);
    text-decoration: none;
}
.header-user {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-left: 8px;
}
.user-name { font-size: 14px; color: var(--text-muted); }

/* ── Main ──────────────────────────────────────────────────── */
.app-main { min-height: calc(100vh - var(--header-h)); }

/* ── Buttons ───────────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px 16px;
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all .15s;
    text-decoration: none;
    white-space: nowrap;
    line-height: 1.4;
}
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn-primary {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}
.btn-primary:hover:not(:disabled) {
    background: var(--primary-hover);
    border-color: var(--primary-hover);
    text-decoration: none;
    color: #fff;
}
.btn-ghost {
    background: transparent;
    color: var(--text-muted);
    border-color: var(--border);
}
.btn-ghost:hover:not(:disabled) {
    background: var(--surface-2);
    color: var(--text);
    text-decoration: none;
}
.btn-danger {
    background: var(--danger-dim);
    color: var(--danger);
    border-color: transparent;
}
.btn-danger:hover:not(:disabled) {
    background: var(--danger);
    color: #fff;
    text-decoration: none;
}
.btn-outline {
    background: transparent;
    color: var(--text);
    border-color: var(--border-light);
}
.btn-outline:hover:not(:disabled) {
    background: var(--surface-2);
    text-decoration: none;
}
.btn-sm  { padding: 5px 12px; font-size: 13px; }
.btn-lg  { padding: 12px 28px; font-size: 16px; }
.btn-full { width: 100%; }
.btn-icon {
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 4px 6px;
    border-radius: 4px;
    color: var(--text-muted);
    font-size: 14px;
}
.btn-icon:hover { color: var(--text); background: var(--surface-3); }
.btn-icon.btn-danger:hover { color: var(--danger); }
.btn-eye {
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0 10px;
    color: var(--text-muted);
}

/* ── Forms ─────────────────────────────────────────────────── */
.field { margin-bottom: 16px; }
.field label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-muted);
    margin-bottom: 6px;
}
.field label small { font-weight: 400; opacity: .8; }
.field small { font-size: 12px; color: var(--text-dim); margin-top: 4px; display: block; }

input[type="text"],
input[type="email"],
input[type="password"],
input[type="tel"],
input[type="number"],
textarea,
select {
    width: 100%;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    font-size: 14px;
    padding: 9px 12px;
    outline: none;
    transition: border-color .15s;
    font-family: inherit;
}
input:focus, textarea:focus, select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-dim);
}
input::placeholder { color: var(--text-dim); }

.input-group {
    display: flex;
    align-items: stretch;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}
.input-group input {
    border: none;
    border-radius: 0;
    flex: 1;
}
.input-group:focus-within {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-dim);
}

/* Radio cards */
.radio-group { display: flex; flex-direction: column; gap: 8px; }
.radio-card {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    cursor: pointer;
    transition: border-color .15s;
}
.radio-card:hover { border-color: var(--border-light); }
.radio-card input[type="radio"]:checked + .radio-content { color: var(--text); }
.radio-card:has(input:checked) { border-color: var(--primary); background: var(--primary-dim); }
.radio-content { display: flex; flex-direction: column; gap: 2px; }
.radio-content strong { font-size: 14px; }
.radio-content span { font-size: 12px; color: var(--text-muted); }

/* Checkbox */
.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    cursor: pointer;
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.5;
}
.checkbox-label input { margin-top: 2px; flex-shrink: 0; }

/* Password strength */
.password-strength {
    font-size: 12px;
    margin-top: 4px;
    font-weight: 500;
}
.strength-1 { color: var(--danger); }
.strength-2 { color: var(--warning); }
.strength-3 { color: #84cc16; }
.strength-4 { color: var(--success); }

/* ── Auth pages ─────────────────────────────────────────────── */
.auth-container {
    min-height: calc(100vh - var(--header-h));
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
}
.auth-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 40px;
    width: 100%;
    max-width: 440px;
    box-shadow: var(--shadow);
}
.auth-card-wide { max-width: 560px; }
.auth-header { text-align: center; margin-bottom: 32px; }
.auth-icon { font-size: 40px; display: block; margin-bottom: 12px; }
.auth-header h1 { font-size: 24px; font-weight: 700; margin-bottom: 6px; }
.auth-header p { color: var(--text-muted); font-size: 14px; }
.auth-form { display: flex; flex-direction: column; }
.auth-footer {
    margin-top: 24px;
    text-align: center;
    font-size: 13px;
    color: var(--text-muted);
    border-top: 1px solid var(--border);
    padding-top: 20px;
}
.form-row {
    display: flex;
    gap: 12px;
    align-items: center;
    justify-content: flex-end;
    margin-top: 16px;
}

/* ── Alerts ─────────────────────────────────────────────────── */
.alert {
    padding: 10px 14px;
    border-radius: var(--radius);
    font-size: 13px;
    margin-bottom: 16px;
    border: 1px solid transparent;
}
.alert-error   { background: var(--danger-dim);  color: #fca5a5; border-color: rgba(239,68,68,.3); }
.alert-success { background: var(--success-dim); color: #86efac; border-color: rgba(34,197,94,.3); }
.alert-warning { background: var(--warning-dim); color: #fcd34d; border-color: rgba(245,158,11,.3); }

/* ── Vault layout ───────────────────────────────────────────── */
.vault-layout {
    display: flex;
    height: calc(100vh - var(--header-h));
    overflow: hidden;
}

.vault-sidebar {
    width: var(--sidebar-w);
    flex-shrink: 0;
    background: var(--surface);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}
.sidebar-section {
    padding: 16px;
    border-bottom: 1px solid var(--border);
}
.sidebar-section:last-child { border-bottom: none; }
.sidebar-title {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .08em;
    color: var(--text-dim);
    margin-bottom: 10px;
}
.sidebar-quota { margin-top: auto; }

/* Folder tree */
.folder-tree { display: flex; flex-direction: column; gap: 2px; }
.folder-item {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 6px 12px;
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 13px;
    color: var(--text-muted);
    transition: background .1s, color .1s;
    user-select: none;
}
.folder-item:hover { background: var(--surface-2); color: var(--text); }
.folder-item.active { background: var(--primary-dim); color: var(--primary); }
.folder-label { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* Quota bar */
.quota-bar-track {
    height: 6px;
    background: var(--surface-3);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 6px;
}
.quota-bar-lg { height: 10px; border-radius: 5px; }
.quota-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--primary-hover));
    border-radius: inherit;
    transition: width .5s ease;
    min-width: 2px;
}
.quota-bar-danger { background: linear-gradient(90deg, var(--warning), var(--danger)); }
.quota-label { font-size: 12px; color: var(--text-muted); }
.quota-display { display: flex; flex-direction: column; gap: 8px; }
.quota-numbers {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    color: var(--text-muted);
}
.quota-percent { font-size: 13px; text-align: center; color: var(--text-muted); }

/* ── Vault main ──────────────────────────────────────────────── */
.vault-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}
.vault-toolbar {
    padding: 12px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border);
    background: var(--surface);
    gap: 12px;
}
.toolbar-actions { display: flex; gap: 8px; }
.breadcrumb { font-size: 14px; color: var(--text-muted); }

/* Drop zone */
.drop-zone {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    position: relative;
}
.drop-zone.dragover { background: var(--primary-dim); }
.drop-zone-hint {
    display: none;
    position: absolute;
    inset: 0;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    color: var(--text-muted);
    pointer-events: none;
}
.drop-zone:empty .drop-zone-hint,
.drop-zone.dragover .drop-zone-hint { display: flex; }
.drop-icon { font-size: 40px; }

/* File table */
.file-table {
    width: 100%;
    border-collapse: collapse;
}
.file-table th {
    text-align: left;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .06em;
    color: var(--text-dim);
    padding: 8px 12px;
    border-bottom: 1px solid var(--border);
}
.file-table td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--border);
    font-size: 14px;
    vertical-align: middle;
}
.file-table tr:hover td { background: var(--surface); }
.file-table .actions { display: flex; gap: 6px; justify-content: flex-end; }
.file-icon { margin-right: 6px; }
.empty-state {
    text-align: center;
    color: var(--text-dim);
    padding: 48px !important;
    font-size: 14px;
}

.status-bar {
    padding: 6px 20px;
    font-size: 12px;
    color: var(--text-muted);
    border-top: 1px solid var(--border);
    min-height: 28px;
    background: var(--surface);
}

/* ── Modals ─────────────────────────────────────────────────── */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.6);
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    backdrop-filter: blur(4px);
}
.modal {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 440px;
    box-shadow: var(--shadow);
}
.modal-header {
    padding: 20px 24px 16px;
    border-bottom: 1px solid var(--border);
}
.modal-header h3 { font-size: 17px; font-weight: 600; }
.modal-body { padding: 20px 24px; }
.modal-hint {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 16px;
    background: var(--surface-2);
    padding: 10px 12px;
    border-radius: var(--radius);
    border-left: 3px solid var(--primary);
}
.modal-footer {
    padding: 16px 24px;
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    border-top: 1px solid var(--border);
}

/* ── Toasts ─────────────────────────────────────────────────── */
.toast-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 300;
    display: flex;
    flex-direction: column;
    gap: 8px;
    pointer-events: none;
}
.toast {
    padding: 12px 16px;
    border-radius: var(--radius);
    font-size: 13px;
    font-weight: 500;
    max-width: 360px;
    box-shadow: var(--shadow);
    animation: slideIn .2s ease;
}
.toast-success { background: #166534; color: #bbf7d0; border: 1px solid #15803d; }
.toast-error   { background: #7f1d1d; color: #fecaca; border: 1px solid #991b1b; }
.toast-info    { background: var(--surface-3); color: var(--text); border: 1px solid var(--border); }
@keyframes slideIn {
    from { transform: translateX(20px); opacity: 0; }
    to   { transform: translateX(0);    opacity: 1; }
}

/* ── Profile / Settings ─────────────────────────────────────── */
.page-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 32px 20px;
}
.page-title {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 24px;
}
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
    gap: 20px;
}
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}
.card-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
}
.card-header h2 { font-size: 16px; font-weight: 600; }
.card-body { padding: 20px; }

.info-list { display: grid; grid-template-columns: auto 1fr; gap: 8px 16px; align-items: baseline; }
.info-list dt { font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: .06em; color: var(--text-dim); }
.info-list dd { font-size: 14px; }

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 500;
}
.status-success { background: var(--success-dim); color: var(--success); }
.status-warning { background: var(--warning-dim); color: var(--warning); }

/* ── Landing page ───────────────────────────────────────────── */
.hero {
    background: radial-gradient(ellipse 80% 60% at 50% -10%, rgba(79,110,247,.15) 0%, transparent 60%),
                var(--bg);
    padding: 100px 20px 80px;
    text-align: center;
}
.hero-inner { max-width: 700px; margin: 0 auto; }
.hero-badge {
    display: inline-block;
    background: var(--primary-dim);
    color: var(--primary);
    border: 1px solid rgba(79,110,247,.3);
    padding: 4px 14px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 24px;
}
.hero-title {
    font-size: clamp(32px, 5vw, 52px);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.5px;
    margin-bottom: 20px;
}
.hero-subtitle {
    font-size: 18px;
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 36px;
}
.hero-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

.section-inner { max-width: 1100px; margin: 0 auto; padding: 80px 20px; }
.section-title { font-size: 28px; font-weight: 700; text-align: center; margin-bottom: 48px; }

.features { background: var(--surface); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.features-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 24px; }
.feature-card {
    padding: 24px;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
}
.feature-icon { font-size: 28px; margin-bottom: 12px; }
.feature-card h3 { font-size: 16px; font-weight: 600; margin-bottom: 8px; }
.feature-card p { font-size: 14px; color: var(--text-muted); }

.steps { display: flex; align-items: center; justify-content: center; gap: 24px; flex-wrap: wrap; }
.step { text-align: center; max-width: 220px; }
.step-icon {
    width: 48px; height: 48px;
    background: var(--primary-dim);
    color: var(--primary);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 20px; font-weight: 700;
    margin: 0 auto 16px;
}
.step h3 { font-size: 16px; font-weight: 600; margin-bottom: 8px; }
.step p  { font-size: 14px; color: var(--text-muted); }
.step-arrow { font-size: 24px; color: var(--text-dim); }

.cta-section { border-top: 1px solid var(--border); }
.text-center { text-align: center; }
.text-muted  { color: var(--text-muted); }

/* ── 2FA Setup ──────────────────────────────────────────────── */
.totp-setup { display: flex; flex-direction: column; gap: 24px; }
.totp-steps { display: flex; flex-direction: column; gap: 12px; }
.totp-step  { display: flex; align-items: flex-start; gap: 12px; font-size: 14px; }
.step-num {
    width: 24px; height: 24px; flex-shrink: 0;
    background: var(--primary);
    color: #fff;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 13px; font-weight: 700;
}
.qr-container { display: flex; flex-direction: column; align-items: center; gap: 12px; }
.qr-canvas {
    border-radius: var(--radius);
    border: 2px solid var(--border);
}
.totp-secret-display { display: flex; align-items: center; gap: 8px; }
.totp-secret {
    font-family: 'Courier New', monospace;
    font-size: 13px;
    background: var(--surface-2);
    padding: 4px 8px;
    border-radius: 4px;
    letter-spacing: .08em;
    word-break: break-all;
}
.success-state { text-align: center; padding: 20px 0; }
.success-icon  { font-size: 48px; margin-bottom: 16px; }

/* ── Admin ──────────────────────────────────────────────────── */
.nav-link-admin { color: var(--warning) !important; }

.admin-header {
    margin-bottom: 24px;
    border-bottom: 1px solid var(--border);
    padding-bottom: 16px;
}
.admin-nav {
    display: flex;
    gap: 4px;
    margin-top: 12px;
    flex-wrap: wrap;
}
.admin-nav-link {
    padding: 6px 14px;
    border-radius: var(--radius);
    font-size: 13px;
    color: var(--text-muted);
    text-decoration: none;
    border: 1px solid transparent;
    transition: all .15s;
}
.admin-nav-link:hover { background: var(--surface-2); color: var(--text); text-decoration: none; }
.admin-nav-link.active { background: var(--primary-dim); color: var(--primary); border-color: rgba(79,110,247,.3); }

/* Stats grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}
.stat-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 20px 16px;
    text-align: center;
}
.stat-card.stat-success { border-color: rgba(34,197,94,.3); background: var(--success-dim); }
.stat-card.stat-danger  { border-color: rgba(239,68,68,.3);  background: var(--danger-dim); }
.stat-card.stat-warning { border-color: rgba(245,158,11,.3); background: var(--warning-dim); }
.stat-value { font-size: 28px; font-weight: 700; margin-bottom: 4px; }
.stat-label { font-size: 12px; color: var(--text-muted); }

/* Admin tables */
.admin-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}
.admin-table th {
    text-align: left;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .06em;
    color: var(--text-dim);
    padding: 10px 16px;
    border-bottom: 1px solid var(--border);
    background: var(--surface-2);
}
.admin-table td {
    padding: 10px 16px;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}
.admin-table tr:last-child td { border-bottom: none; }
.admin-table tr:hover td { background: var(--surface-2); }
.admin-table-full { width: 100%; }

/* Badges */
.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .04em;
}
.badge-success { background: var(--success-dim); color: var(--success); }
.badge-danger  { background: var(--danger-dim);  color: var(--danger); }
.badge-warning { background: var(--warning-dim); color: var(--warning); }
.badge-primary { background: var(--primary-dim); color: var(--primary); }

/* Mini quota bar (in table) */
.mini-quota { height: 4px; background: var(--surface-3); border-radius: 2px; width: 80px; overflow: hidden; margin-bottom: 3px; }
.mini-quota-bar { height: 100%; border-radius: 2px; }

/* Filter bar */
.filter-bar { margin-bottom: 16px; padding: 16px 20px !important; }
.filter-bar .card-body { padding: 0; }
.filter-bar-inner { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.filter-input  { flex: 1; min-width: 160px; }
.filter-select { min-width: 140px; }
.filter-count  { font-size: 12px; color: var(--text-dim); margin-top: 8px; }

/* Pagination */
.pagination { display: flex; gap: 6px; margin-top: 16px; flex-wrap: wrap; }
.page-link {
    padding: 6px 12px;
    border-radius: var(--radius);
    font-size: 13px;
    color: var(--text-muted);
    text-decoration: none;
    border: 1px solid var(--border);
    background: var(--surface);
    transition: all .15s;
}
.page-link:hover { background: var(--surface-2); text-decoration: none; }
.page-link.active { background: var(--primary); color: #fff; border-color: var(--primary); }

/* ── Utility ─────────────────────────────────────────────────── */
.mt-2  { margin-top: 8px; }
.mt-3  { margin-top: 16px; }
.btn-full { width: 100%; }
.spinner { animation: spin .8s linear infinite; display: inline-block; }
@keyframes spin { to { transform: rotate(360deg); } }