:root {
    --bhel-blue: #075ca8;
    --bhel-deep: #05345f;
    --bhel-ink: #071827;
    --bhel-silver: #d9e2ec;
    --bhel-glass: rgba(255, 255, 255, 0.72);
    --bhel-glass-border: rgba(255, 255, 255, 0.46);
    --bhel-shadow: 0 24px 80px rgba(5, 35, 65, 0.18);
}

html {
    scroll-behavior: smooth;
}

body {
    color: var(--bhel-ink);
    background:
        radial-gradient(circle at 12% 10%, rgba(7, 92, 168, 0.16), transparent 26rem),
        radial-gradient(circle at 90% 0%, rgba(148, 163, 184, 0.24), transparent 28rem),
        linear-gradient(135deg, #eef5fb 0%, #f8fafc 46%, #dce8f3 100%);
}

.bhel-glass {
    background: var(--bhel-glass);
    border: 1px solid var(--bhel-glass-border);
    box-shadow: var(--bhel-shadow);
    backdrop-filter: blur(22px);
    -webkit-backdrop-filter: blur(22px);
}

.bhel-card {
    border-radius: 24px;
    border: 1px solid rgba(255, 255, 255, 0.56);
    background: rgba(255, 255, 255, 0.68);
    box-shadow: 0 18px 58px rgba(5, 35, 65, 0.11);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    transition: transform 220ms ease, box-shadow 220ms ease, border-color 220ms ease;
}

.bhel-card:hover {
    transform: translateY(-4px);
    border-color: rgba(7, 92, 168, 0.26);
    box-shadow: 0 24px 70px rgba(5, 35, 65, 0.16);
}

.bhel-input {
    width: 100%;
    border-radius: 16px;
    border: 1px solid rgba(148, 163, 184, 0.36);
    background: rgba(255, 255, 255, 0.78);
    padding: 0.875rem 1rem;
    color: #0f172a;
    outline: none;
    transition: box-shadow 180ms ease, border-color 180ms ease, background 180ms ease;
}

.bhel-input:focus {
    border-color: rgba(7, 92, 168, 0.72);
    background: #fff;
    box-shadow: 0 0 0 4px rgba(7, 92, 168, 0.13);
}

.bhel-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.55rem;
    border-radius: 16px;
    background: linear-gradient(135deg, var(--bhel-blue), #0f7fd0);
    color: white;
    font-weight: 800;
    box-shadow: 0 14px 32px rgba(7, 92, 168, 0.28);
    transition: transform 180ms ease, box-shadow 180ms ease, filter 180ms ease;
}

.bhel-btn:hover {
    transform: translateY(-2px);
    filter: saturate(1.08);
    box-shadow: 0 18px 40px rgba(7, 92, 168, 0.34);
}

.bhel-auth-bg {
    min-height: 100vh;
    overflow-x: hidden;
    background:
        radial-gradient(circle at 18% 18%, rgba(14, 165, 233, 0.22), transparent 20rem),
        radial-gradient(circle at 82% 28%, rgba(203, 213, 225, 0.34), transparent 24rem),
        linear-gradient(135deg, #052f57 0%, #075ca8 45%, #f8fafc 100%);
}

.bhel-particle {
    position: absolute;
    width: 0.55rem;
    height: 0.55rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.72);
    animation: bhelFloat 7s ease-in-out infinite;
}

.bhel-industrial-grid {
    background-image:
        linear-gradient(rgba(7, 92, 168, 0.07) 1px, transparent 1px),
        linear-gradient(90deg, rgba(7, 92, 168, 0.07) 1px, transparent 1px);
    background-size: 34px 34px;
}

.bhel-alert-shell {
    animation: bhelModalIn 260ms cubic-bezier(0.22, 1, 0.36, 1) both;
}

.bhel-alert-icon {
    animation: bhelIconPop 620ms cubic-bezier(0.22, 1, 0.36, 1) both;
}

.bhel-skeleton {
    background: linear-gradient(90deg, rgba(226, 232, 240, 0.72), rgba(255, 255, 255, 0.86), rgba(226, 232, 240, 0.72));
    background-size: 200% 100%;
    animation: bhelShimmer 1.4s linear infinite;
}

@keyframes bhelFloat {
    0%, 100% { transform: translate3d(0, 0, 0); opacity: 0.75; }
    50% { transform: translate3d(10px, -24px, 0); opacity: 1; }
}

@keyframes bhelModalIn {
    from { opacity: 0; transform: translateY(14px) scale(0.96); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes bhelIconPop {
    0% { transform: scale(0.62); opacity: 0; }
    70% { transform: scale(1.08); opacity: 1; }
    100% { transform: scale(1); opacity: 1; }
}

@keyframes bhelShimmer {
    from { background-position: 200% 0; }
    to { background-position: -200% 0; }
}

@media (max-width: 768px) {
    .bhel-card {
        border-radius: 18px;
    }
}