* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body.panel-body {
    margin: 0;
    min-height: 100vh;
    font-family: var(--font);
    color: var(--text);
    background:
        radial-gradient(circle at 15% 10%, rgba(124, 58, 237, 0.22), transparent 32%),
        radial-gradient(circle at 82% 18%, rgba(6, 182, 212, 0.18), transparent 30%),
        radial-gradient(circle at 50% 100%, rgba(236, 72, 153, 0.12), transparent 28%),
        linear-gradient(135deg, #070816 0%, #0b1024 52%, #07111f 100%);
    overflow-x: hidden;
}

body:before {
    content: '';
    position: fixed;
    inset: 0;
    pointer-events: none;
    opacity: .16;
    background-image:
        linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
    background-size: 48px 48px;
    mask-image: radial-gradient(circle at center, black 0, transparent 72%);
}

.ambient {
    position: fixed;
    border-radius: 999px;
    filter: blur(55px);
    opacity: .45;
    pointer-events: none;
    animation: floatGlow 9s ease-in-out infinite;
}
.ambient-one { width: 280px; height: 280px; background: var(--primary); top: 8%; left: 20%; }
.ambient-two { width: 330px; height: 330px; background: var(--cyan); right: 6%; top: 20%; animation-delay: -3s; }
.ambient-three { width: 240px; height: 240px; background: var(--pink); right: 28%; bottom: 4%; animation-delay: -5s; }

.panel-shell {
    display: flex;
    min-height: 100vh;
    position: relative;
    z-index: 1;
}

.panel-sidebar {
    position: fixed;
    top: 18px;
    left: 18px;
    bottom: 18px;
    width: var(--sidebar-width);
    padding: 20px;
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    background: linear-gradient(180deg, rgba(12, 18, 40, .86), rgba(7, 10, 24, .92));
    backdrop-filter: blur(24px);
    box-shadow: var(--shadow-card);
    overflow-y: auto;
}

.panel-main {
    width: calc(100% - var(--sidebar-width));
    margin-left: calc(var(--sidebar-width) + 36px);
    min-height: 100vh;
}

.panel-topbar {
    height: var(--topbar-height);
    margin: 18px 18px 0 0;
    padding: 0 24px;
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    background: rgba(9, 13, 30, .72);
    backdrop-filter: blur(24px);
    box-shadow: var(--shadow-soft);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
}

.panel-content {
    padding: 24px 18px 44px 0;
}

.reveal-page {
    animation: revealUp .62s ease both;
}

@keyframes revealUp {
    from { opacity: 0; transform: translateY(16px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes floatGlow {
    0%, 100% { transform: translate3d(0,0,0) scale(1); }
    50% { transform: translate3d(16px,-18px,0) scale(1.06); }
}