:root {
    --bg-color: #f6f1e8;
    --text-color: #1d1a16;
    --muted-text: #5c5349;
    --card-bg: #ffffff;
    --border-color: #d4cbbc;
    --primary: #ff7a00;
    --secondary: #1f5eff;
    --shadow: rgba(20, 18, 15, 0.14);
}

body.dark {
    --bg-color: #0f1115;
    --text-color: #f5f5f5;
    --muted-text: #c4c9d6;
    --card-bg: #1b1e24;
    --border-color: #2b2f3a;
    --primary: #ffb703;
    --secondary: #6ee7ff;
    --shadow: rgba(0, 0, 0, 0.4);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: "Noto Sans KR", system-ui, sans-serif;
    background: linear-gradient(180deg, var(--bg-color), #f0f2f7 70%);
    color: var(--text-color);
    min-height: 100vh;
    padding: 2.5rem 1.5rem 3rem;
}

body.dark {
    background: linear-gradient(180deg, var(--bg-color), #0b0d12 70%);
}

.page {
    max-width: 1100px;
    margin: 2rem auto 0;
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
}

.topbar {
    max-width: 1100px;
    margin: 0 auto;
    padding: 1.8rem 2rem;
    background: var(--card-bg);
    border-radius: 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    box-shadow: 0 16px 30px var(--shadow);
}

.brand h1 {
    margin: 0.4rem 0 0.6rem;
    font-size: clamp(2rem, 3vw, 2.8rem);
}

.brand p {
    margin: 0;
    color: var(--muted-text);
}

.brand-kicker {
    text-transform: uppercase;
    letter-spacing: 0.3rem;
    font-size: 0.75rem;
    color: var(--secondary);
    font-weight: 600;
}

.topbar-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.topbar-nav {
    display: flex;
    gap: 0.8rem;
    flex-wrap: wrap;
}

.topbar-nav a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 600;
    font-size: 0.9rem;
    padding: 0.4rem 0.8rem;
    border-radius: 999px;
    border: 1px solid transparent;
}

.topbar-nav a.active {
    border-color: var(--border-color);
    background: rgba(0, 0, 0, 0.05);
}

body.dark .topbar-nav a.active {
    background: rgba(255, 255, 255, 0.08);
}

button {
    border: none;
    border-radius: 999px;
    padding: 0.75rem 1.5rem;
    font-size: 0.95rem;
    font-weight: 600;
    background: var(--primary);
    color: #1d1a16;
    cursor: pointer;
}

button.ghost {
    background: transparent;
    color: var(--text-color);
    border: 1px solid var(--border-color);
}

.theme-switch {
    position: relative;
    display: inline-block;
    width: 54px;
    height: 30px;
}

.theme-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    inset: 0;
    border-radius: 999px;
    background: var(--border-color);
    transition: 0.3s;
}

.slider::before {
    content: "";
    position: absolute;
    height: 22px;
    width: 22px;
    left: 4px;
    bottom: 4px;
    background: #ffffff;
    border-radius: 50%;
    transition: 0.3s;
}

.theme-switch input:checked + .slider {
    background: var(--secondary);
}

.theme-switch input:checked + .slider::before {
    transform: translateX(24px);
}

.panel.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.6rem;
}

.content-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.6rem;
}

.card {
    background: var(--card-bg);
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 0 12px 26px var(--shadow);
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.muted {
    color: var(--muted-text);
}

.content-page {
    margin-top: 2rem;
}

.text-link {
    color: var(--secondary);
    font-weight: 600;
    text-decoration: none;
}

.content-card h2 {
    margin: 0;
}

.content-list {
    margin: 0.2rem 0 0;
    padding-left: 1.2rem;
    color: var(--muted-text);
    display: grid;
    gap: 0.4rem;
}

.note {
    font-size: 0.9rem;
    color: var(--muted-text);
}

.faq h3 {
    margin: 0.4rem 0 0.2rem;
    font-size: 1rem;
}

.faq p {
    margin: 0 0 0.6rem;
    color: var(--muted-text);
}

input[type="file"],
input[type="email"],
textarea {
    width: 100%;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 0.8rem 1rem;
    font-size: 1rem;
    background: transparent;
    color: var(--text-color);
}

textarea {
    resize: vertical;
}

.preview {
    border: 1px dashed var(--border-color);
    border-radius: 12px;
    padding: 1rem;
    min-height: 220px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.preview img {
    max-width: 100%;
    max-height: 260px;
    border-radius: 12px;
    display: none;
}

.status {
    color: var(--muted-text);
    font-size: 0.95rem;
}

#label-container {
    display: grid;
    gap: 0.4rem;
}

.form-status {
    font-size: 0.9rem;
}

.form-status.success {
    color: #1b8e4b;
}

.comments h2 {
    margin-top: 0;
}

.footer {
    text-align: center;
    margin-top: 2rem;
    color: var(--muted-text);
}

@media (max-width: 900px) {
    .topbar {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 600px) {
    body {
        padding: 1.8rem 1rem 2.5rem;
    }

    .topbar {
        padding: 1.4rem;
    }

    .card {
        padding: 1.5rem;
    }
}