:root {
    --op-blue: #1E40AF;
    --op-orange: #F97316;
    --op-purple: #9333EA;
    --op-gold: #FBBF24;
    --op-green: #059669;
    --op-cyan: #0891B2;
    --op-ink: #0f172a;
    --op-paper: #f8fafc;
}

body.op-body {
    font-family: 'Source Sans 3', 'Inter', sans-serif;
    background:
        radial-gradient(900px 420px at 0% -10%, rgba(30, 64, 175, 0.08), transparent 55%),
        radial-gradient(800px 380px at 100% 0%, rgba(249, 115, 22, 0.08), transparent 50%),
        var(--op-paper);
    color: var(--op-ink);
}

.display {
    font-family: 'Fraunces', Georgia, serif;
}

.op-input {
    width: 100%;
    border: 1.5px solid #cbd5e1;
    border-radius: 0.85rem;
    padding: 0.8rem 1rem;
    background: #fff;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.op-input:focus {
    outline: none;
    border-color: var(--op-blue);
    box-shadow: 0 0 0 3px rgba(30, 64, 175, 0.18);
}

.op-hero {
    position: relative;
    overflow: hidden;
    color: #fff;
    background: linear-gradient(135deg, #1E40AF 0%, #9333EA 48%, #F97316 100%);
    background-size: 180% 180%;
    animation: opHeroShift 16s ease infinite;
    box-shadow: 0 12px 40px rgba(30, 64, 175, 0.28);
}
.op-hero-orbs,
.op-hero-orbs span {
    pointer-events: none;
}
.op-hero-orbs span {
    position: absolute;
    border-radius: 999px;
    filter: blur(2px);
    opacity: 0.28;
    animation: opFloat 9s ease-in-out infinite;
}
.op-hero-orbs span:nth-child(1) {
    width: 220px; height: 220px; left: -60px; top: -80px;
    background: #FBBF24;
}
.op-hero-orbs span:nth-child(2) {
    width: 180px; height: 180px; right: 8%; bottom: -70px;
    background: #1E40AF;
    animation-delay: -3s;
}
.op-hero-orbs span:nth-child(3) {
    width: 120px; height: 120px; right: 28%; top: -30px;
    background: #fff;
    opacity: 0.12;
    animation-delay: -5s;
}

.op-logo {
    height: 3rem;
    width: auto;
    background: #fff;
    border-radius: 999px;
    padding: 3px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18), 0 0 0 3px rgba(255, 255, 255, 0.35);
    animation: opLogoFloat 4.5s ease-in-out infinite;
}
.op-logo-lg {
    height: 5.5rem;
    padding: 6px;
    display: block;
    margin-left: auto;
    margin-right: auto;
}

.op-nav-link {
    display: inline-flex;
    align-items: center;
    padding: 0.45rem 0.85rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
    font-weight: 600;
    transition: transform 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}
.op-nav-link:hover {
    background: rgba(255, 255, 255, 0.22);
    transform: translateY(-2px);
}
.op-nav-link.is-active {
    background: #fff;
    color: var(--op-blue);
    box-shadow: 0 8px 18px rgba(15, 23, 42, 0.12);
}
.op-nav-link.op-nav-manage {
    background: var(--op-gold);
    color: #1f2937;
}
.op-nav-link.op-nav-out {
    background: rgba(239, 68, 68, 0.9);
}

.op-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1E40AF 0%, #9333EA 100%);
    color: #fff;
    font-weight: 700;
    border: 0;
    border-radius: 0.9rem;
    padding: 0.75rem 1.4rem;
    box-shadow: 0 10px 24px rgba(30, 64, 175, 0.28);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.op-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 16px 30px rgba(147, 51, 234, 0.32);
}
.op-btn-gold {
    background: linear-gradient(135deg, #F97316 0%, #FBBF24 100%);
    color: #1f2937;
    box-shadow: 0 10px 24px rgba(249, 115, 22, 0.28);
}
.op-btn-gold:hover {
    box-shadow: 0 16px 30px rgba(249, 115, 22, 0.38);
}

.op-card {
    background: #fff;
    border-radius: 1.15rem;
    box-shadow: 0 8px 24px rgba(15, 23, 42, 0.06);
    border: 1px solid rgba(148, 163, 184, 0.18);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.op-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 18px 40px rgba(30, 64, 175, 0.12);
}
.op-panel {
    background: #fff;
    border-radius: 1.15rem;
    box-shadow: 0 8px 24px rgba(15, 23, 42, 0.06);
    border: 1px solid rgba(148, 163, 184, 0.18);
}
.op-stat-icon {
    width: 2.6rem;
    height: 2.6rem;
    border-radius: 0.85rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    box-shadow: 0 8px 16px rgba(15, 23, 42, 0.15);
}

.op-tab {
    display: inline-flex;
    padding: 0.5rem 1rem;
    border-radius: 999px;
    font-size: 0.875rem;
    font-weight: 700;
    background: #fff;
    color: #475569;
    border: 1px solid #e2e8f0;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.op-tab:hover { transform: translateY(-2px); }
.op-tab.is-active {
    color: #fff;
    border-color: transparent;
    background: linear-gradient(135deg, #1E40AF 0%, #9333EA 100%);
    box-shadow: 0 8px 18px rgba(30, 64, 175, 0.25);
}

.op-fade {
    animation: opFadeUp 0.7s ease both;
}
.op-delay-1 { animation-delay: 0.08s; }
.op-delay-2 { animation-delay: 0.16s; }
.op-delay-3 { animation-delay: 0.24s; }
.op-delay-4 { animation-delay: 0.32s; }

.op-text-gradient {
    background: linear-gradient(135deg, #1E40AF 0%, #F97316 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.op-login-shell {
    min-height: calc(100vh - 4rem);
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, #1E40AF 0%, #9333EA 48%, #F97316 100%);
    background-size: 180% 180%;
    animation: opHeroShift 16s ease infinite;
}
.op-shine {
    position: relative;
    overflow: hidden;
}
.op-shine::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg, transparent 30%, rgba(255,255,255,0.35) 50%, transparent 70%);
    transform: translateX(-120%);
    animation: opShine 3.8s ease-in-out infinite;
}

.op-footer {
    text-align: center;
    padding: 2rem 1rem 2.5rem;
    color: #64748b;
    font-size: 0.875rem;
}
.op-footer img {
    height: 2.25rem;
    width: auto;
    margin: 0 auto 0.6rem;
    display: block;
}
.hover-scale {
    transition: transform 0.3s ease;
}
.hover-scale:hover {
    transform: translateY(-5px);
}

@keyframes opHeroShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}
@keyframes opFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(18px); }
}
@keyframes opLogoFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-5px); }
}
@keyframes opFadeUp {
    from { opacity: 0; transform: translateY(22px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes opShine {
    0%, 55% { transform: translateX(-120%); }
    100% { transform: translateX(120%); }
}

@media (prefers-reduced-motion: reduce) {
    .op-hero, .op-login-shell, .op-logo, .op-hero-orbs span, .op-fade, .op-shine::after {
        animation: none !important;
    }
    .op-card:hover, .op-btn:hover, .op-nav-link:hover, .hover-scale:hover {
        transform: none;
    }
}

.op-body a.text-teal-700,
.op-body a.text-teal-800 {
    color: #1E40AF;
}
.op-body .bg-teal-50 {
    background-color: #fff7ed;
}
.op-body .border-teal-600 {
    border-color: #F97316;
}

@media print {
    .op-hero,
    .op-footer,
    .op-no-print {
        display: none !important;
    }
    body.op-body {
        background: #fff;
    }
    main {
        padding-top: 0 !important;
    }
}