* {
    box-sizing: border-box;
}

:root {
    --color-bg: #eaf8ff;
    --color-surface: #ffffff;
    --color-surface-soft: #f6eefb;

    --color-primary: #079df2;
    --color-primary-dark: #0878d8;

    --color-accent-purple: #8b5cf6;
    --color-accent-pink: #ec4899;

    --color-panel: #eadff2;
    --color-panel-strong: #dec8ec;

    --color-text: #171717;
    --color-text-muted: #6b7280;

    --color-border: #d8c9e2;
    --color-danger: #dc2626;
    --color-success: #16a34a;

    --shadow-soft: 0 8px 24px rgba(30, 42, 80, 0.10);
    --radius-card: 14px;
    --radius-button: 12px;
}

:root {
    --color-bg: #eaf8ff;
    --color-surface: #ffffff;
    --color-panel: #eadff2;
    --color-primary: #079df2;
    --color-purple: #8b5cf6;
    --color-text: #171717;
    --color-muted: #6b7280;
    --color-border: #d8c9e2;
    --radius-card: 14px;
    --shadow-soft: 0 8px 24px rgba(30, 42, 80, 0.10);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
}

a {
    color: var(--color-primary);
    text-decoration: none;
}

.topbar {
    height: 60px;
    padding: 0 20px;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.topbar-logo {
    font-weight: 700;
    font-size: 20px;
    color: var(--color-text);
}

.topbar-nav {
    display: flex;
    align-items: center;
    gap: 14px;
}

.logout-button {
    border: none;
    background: transparent;
    color: var(--color-primary);
    cursor: pointer;
}

.rooms-page {
    max-width: 1100px;
    margin: 0 auto;
    padding: 28px;
}

.rooms-hero {
    margin-bottom: 20px;
}

.rooms-hero h1 {
    margin: 0 0 8px;
    font-size: 34px;
}

.rooms-hero p {
    margin: 0;
    color: var(--color-muted);
}

.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-soft);
    padding: 18px;
    margin-bottom: 18px;
}

.room-form {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
}

input {
    padding: 10px 12px;
    border: 1px solid var(--color-border);
    border-radius: 9px;
    background: var(--color-panel);
}

.checkbox-row {
    display: flex;
    align-items: center;
    gap: 6px;
}

.btn {
    display: inline-block;
    border: 1px solid var(--color-border);
    border-radius: 10px;
    padding: 9px 13px;
    background: var(--color-panel);
    color: var(--color-text);
    cursor: pointer;
}

.btn-primary {
    background: linear-gradient(90deg, var(--color-primary), var(--color-purple));
    color: white;
    border: none;
}

.rooms-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
}

.room-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.room-card {
    display: flex;
    flex-direction: column;
    gap: 5px;
    padding: 12px;
    border-radius: 12px;
    background: #f8f3fb;
    color: var(--color-text);
}

.room-card span,
.room-card small {
    color: var(--color-muted);
}

.room-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 8px;
}

.error-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background: var(--color-bg);
}

.error-card {
    width: 100%;
    max-width: 520px;
    padding: 36px;
    text-align: center;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-soft);
}

.error-code {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 88px;
    height: 54px;
    margin-bottom: 18px;
    padding: 0 18px;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-purple));
    color: white;
    font-size: 24px;
    font-weight: 700;
}

.error-card h1 {
    margin: 0 0 12px;
    font-size: 30px;
}

.error-card p {
    margin: 0 0 24px;
    color: var(--color-muted);
    line-height: 1.5;
}

.error-actions {
    display: flex;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
}