:root {
    color-scheme: dark;
    font-family: 'Noto Sans KR', 'Noto Sans', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

body {
    background: #080d1a;
    color: #e2e8f0;
    min-height: 100vh;
    font-family: inherit;
    line-height: 1.65;
    letter-spacing: -0.01em;
    margin: 0;
    padding-top: 0;
}

a {
    color: #7dd3fc;
}

.expert-navbar {
    background: rgba(23, 32, 52, 0.85);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(94, 234, 212, 0.22);
}

.navbar-item,
.navbar-link {
    color: rgba(226, 232, 240, 0.92);
}

.expert-navbar .navbar-menu {
    background: transparent;
}

.expert-navbar .navbar-menu .navbar-item {
    color: rgba(226, 232, 240, 0.92);
}

.expert-navbar .navbar-menu .navbar-item:hover,
.expert-navbar .navbar-menu .navbar-item:focus {
    background: rgba(59, 130, 246, 0.15);
    color: #f8fafc;
}

.expert-navbar .navbar-menu .button.is-light {
    background: rgba(15, 23, 42, 0.6);
    color: rgba(248, 250, 252, 0.95);
    border-color: rgba(148, 163, 184, 0.35);
}

.expert-navbar .navbar-menu .button.is-light.is-outlined {
    background: transparent;
}

@media (max-width: 1023px) {
    .expert-navbar .navbar-menu {
        background: rgba(3, 7, 18, 0.95);
        box-shadow: 0 12px 32px rgba(0, 0, 0, 0.45);
        padding: 1rem 1.25rem 1.5rem;
        border-bottom-left-radius: 18px;
        border-bottom-right-radius: 18px;
    }
    .expert-navbar .navbar-menu .navbar-item {
        color: rgba(248, 250, 252, 0.95);
        border-radius: 10px;
        margin-bottom: 0.35rem;
    }
    .expert-navbar .navbar-menu .navbar-item:hover {
        background: rgba(59, 130, 246, 0.15);
        color: #f8fafc;
    }
    .expert-navbar .navbar-menu .button.is-light {
        background: rgba(15, 23, 42, 0.85);
    }
}

.navbar-user-tag {
    color: rgba(226, 232, 240, 0.85);
    margin-right: 0.75rem;
    font-size: 0.9rem;
}

.expert-brand {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    color: rgba(226, 232, 240, 0.95);
}

.expert-logo {
    height: 45px;
    width: auto;
}

.expert-brand-text {
    font-size: 1.05rem;
    color: #020617;
}

.navbar-item.is-disabled {
    color: rgba(148, 163, 184, 0.45);
}

.expert-main {
    padding-top: 0;
    padding-bottom: 3.5rem;
    background: #080d1a;
    min-height: calc(100vh - 64px);
}

.section {
    background: transparent;
}

.navbar-burger {
    cursor: pointer;
    color: rgba(226, 232, 240, 0.92);
    border-radius: 10px;
    padding: 0.5rem;
    transition: background 0.2s ease, color 0.2s ease;
}

.navbar-burger span {
    background-color: rgba(248, 250, 252, 0.92);
}

.navbar-burger:hover,
.navbar-burger:focus {
    background: rgba(59, 130, 246, 0.15);
    color: #f8fafc;
}

.navbar-burger.is-active {
    background: rgba(15, 23, 42, 0.8);
    color: #f8fafc;
}

.navbar-burger.is-active span {
    background-color: #f8fafc;
}

.title {
    color: rgba(248, 250, 252, 0.92);
}

.subtitle {
    color: rgba(203, 213, 225, 0.8);
}

.button.is-primary {
    background: linear-gradient(135deg, #f7931a, #fb8c00);
    border-color: rgba(234, 179, 8, 0.65);
    color: #ffffff;
    box-shadow: none;
    transition: transform 0.15s ease;
}

.button.is-primary:hover,
.button.is-primary:focus {
    background: linear-gradient(135deg, #ff9f1c, #f2711c);
    border-color: rgba(253, 186, 116, 0.8);
    color: #ffffff;
    transform: translateY(-1px);
    box-shadow: none;
}

.button.is-primary:active {
    background: linear-gradient(135deg, #f2711c, #d97706);
    border-color: rgba(217, 119, 6, 0.85);
    transform: translateY(1px);
    box-shadow: none;
}

.expert-error-section {
    min-height: calc(100vh - 120px);
    display: flex;
    align-items: center;
    justify-content: center;
    background: radial-gradient(circle at top, rgba(59, 130, 246, 0.12), transparent 55%);
    padding: 3rem 1.5rem;
}

.expert-error-card {
    max-width: 640px;
    background: rgba(6, 11, 25, 0.92);
    border: 1px solid rgba(148, 163, 184, 0.25);
    border-radius: 24px;
    padding: 3rem 2.5rem;
    text-align: center;
    box-shadow: 0 35px 80px rgba(2, 6, 23, 0.65);
}

.expert-error-card h1 {
    font-size: 2rem;
    margin-top: 1rem;
    margin-bottom: 0.75rem;
    color: rgba(248, 250, 252, 0.95);
}

.expert-error-card p {
    color: rgba(203, 213, 225, 0.85);
    margin: 0 auto 1.25rem;
    max-width: 520px;
}

.expert-error-icon {
    width: 110px;
    height: 110px;
    margin: 0 auto;
    border-radius: 24px;
    background: linear-gradient(135deg, rgba(123, 54, 255, 0.85), rgba(247, 147, 26, 0.85));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 700;
    color: #fff;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.45);
}

.expert-error-icon--warning {
    background: linear-gradient(135deg, rgba(255, 110, 64, 0.85), rgba(253, 186, 116, 0.85));
}

.expert-error-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    justify-content: center;
    margin-bottom: 1rem;
}

.expert-error-hint {
    font-size: 0.9rem;
}

.expert-error-hint a {
    color: #7dd3fc;
    text-decoration: underline;
}