/* === Reset & Box-sizing === */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

/* === Variables === */
:root {
    --bg-dark: #111111;
    --bg-card: #1e1e1e;
    --border: #2b53c0;
    --text-light: #ececec;
    --accent: #3c56e7;
    --accent-dark: #2b46c0;
    --transition: 0.2s ease-in-out;
    --radius: 6px;
    --spacing: 1rem;
    --font: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

/* === Base Styles === */
body {
    font-family: var(--font);
    background: var(--bg-dark);
    color: var(--text-light);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* === Top Bar === */
.topbar {
    background: var(--bg-card);
    border-bottom: 2px solid var(--border);
    padding: 0.5rem var(--spacing);
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 100;
    box-shadow: 0 2px 4px rgba(0,0,0,0.5);
}

.topbar__title {
    font-size: 1.25rem;
    color: var(--accent);
}

.topbar__nav .btn {
    margin-left: 0.5rem;
}

/* === Container === */
.container {
    margin: 5rem auto 2rem;
    padding: 0 var(--spacing);
    max-width: 1200px;
    width: 100%;
}

.container__heading {
    margin-bottom: var(--spacing);
    text-align: center;
    color: var(--accent);
}

/* === Relay Grid === */
.relay-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing);
}

/* Country Card */
.country-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: var(--spacing);
    box-shadow: 0 2px 6px rgba(0,0,0,0.7);
    min-width: 300px;
}

.country-card__header {
    display: flex;
    align-items: center;
    margin-bottom: 0.5rem;
}

.country-card__flag {
    width: 24px;
    height: auto;
    margin-right: 0.5rem;
}

.country-card__name {
    font-size: 1rem;
    color: var(--accent);
}

/* Cities */
.country-card__cities {
    max-height: 240px;
    overflow-y: auto;
    padding-right: 0.5rem;
}
@supports (-moz-appearance:none) {
    .country-card__cities {
        scrollbar-color: var(--accent-dark) #1a1a1a;
    }
}

.city-block {
    margin-bottom: 1rem;
}

.city-block__name {
    font-size: 0.95rem;
    margin-bottom: 0.5rem;
    color: var(--text-light);
}

/* Host Buttons */
.host-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.btn {
    background: var(--accent);
    color: #fff;
    border: 1px solid var(--accent-dark);
    border-radius: var(--radius);
    padding: 0.4rem 0.8rem;
    font-size: 0.85rem;
    text-decoration: none;
    cursor: pointer;
    transition: background var(--transition), transform var(--transition);
}

.btn:hover {
    background: var(--accent-dark);
}

.btn--small {
    padding: 0.3rem 0.6rem;
    font-size: 0.8rem;
    width: 100%;
}

.btn--full {
    display: block;
    width: 100%;
}

/* === Password Block === */
.block-container {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: var(--spacing);
    margin-top: var(--spacing);
    max-width: 350px;
    margin-left: auto;
    margin-right: auto;
    box-shadow: 0 2px 6px rgba(0,0,0,0.7);
    width: 90%
}

.block-container__heading {
    margin-bottom: var(--spacing);
    color: var(--accent);
    text-align: center;
}

.form {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.form__input {
    padding: 0.6rem;
    border: 1px solid #444;
    border-radius: var(--radius);
    background: #222;
    color: #eee;
    font-size: 0.9rem;
}

/* === Scrollbar Enhancements === */
.country-card__cities::-webkit-scrollbar {
    width: 4px;
}

.country-card__cities::-webkit-scrollbar-track {
    background: #1a1a1a;
    border-radius: var(--radius);
}

.country-card__cities::-webkit-scrollbar-thumb {
    background: var(--accent-dark);
    border-radius: var(--radius);
}

.login-wrapper {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing);
    min-height: calc(100vh - 0px);
}

.host-buttons__form {
    display: flex;
    flex-grow: 1;
}