:root {
    --color-purple-600: #7c3aed;
    --color-purple-800: #5b21b6;
    --color-white: #ffffff;
    --color-white-10: rgba(255, 255, 255, 0.1);
    --color-white-50: rgba(255, 255, 255, 0.5);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    background: linear-gradient(to bottom right, var(--color-purple-600), var(--color-purple-800));
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
}

.container {
    width: 100%;
    max-width: 1024px;
    padding: 2rem;
}

.content {
    animation: fadeInUp 0.5s ease-out;
}

.logo-title {
    text-align: center;
    margin-bottom: 2rem;
}

.icon {
    width: 4rem;
    height: 4rem;
    margin-bottom: 1rem;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.logo-img {
    width: 180px;
    height: auto;
    margin-bottom: 1rem;
    display: block;
    margin-left: auto;
    margin-right: auto;
}

h1 {
    font-size: 2.5rem;
    font-weight: 700;
}

.cards-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.card {
    background: var(--color-white-10);
    backdrop-filter: blur(10px);
    border-radius: 0.5rem;
    padding: 1.5rem;
    border: 1px solid var(--color-white-50);
}

.card-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.card-header .icon {
    width: 1.25rem;
    height: 1.25rem;
}

h2 {
    font-size: 1.25rem;
    font-weight: 600;
}

.card-content {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

label {
    font-size: 0.875rem;
    font-weight: 500;
}

input {
    background: var(--color-white-10);
    border: 1px solid var(--color-white-50);
    border-radius: 0.25rem;
    padding: 0.5rem;
    color: var(--color-white);
    font-size: 1rem;
}

input::placeholder {
    color: var(--color-white-50);
}

.input-error {
    border-color: #ff4d4f;
}

.input-error-text {
    color: #ff4d4f;
    font-size: 0.875rem;
}

select {
    background: var(--color-white-10);
    border: 1px solid var(--color-white-50);
    border-radius: 0.25rem;
    padding: 0.5rem;
    color: var(--color-white);
    font-size: 1rem;
}

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

.rooms-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
}

.rooms-title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-white);
}

.rooms-refresh {
    padding: 0.5rem 0.75rem;
    font-size: 0.875rem;
}

.rooms-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    max-height: 260px;
    overflow: auto;
    padding-right: 0.25rem;
}

.rooms-empty {
    font-size: 0.875rem;
    color: var(--color-white-50);
}

.room-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    padding: 0.75rem;
    border-radius: 0.5rem;
    border: 1px solid var(--color-white-50);
    background: var(--color-white-10);
}

.room-info {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    min-width: 0;
}

.room-title {
    font-size: 0.95rem;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.room-meta {
    font-size: 0.85rem;
    color: var(--color-white-50);
}

.room-join {
    padding: 0.5rem 0.75rem;
    font-size: 0.9rem;
    flex: 0 0 auto;
}

.divider {
    height: 1px;
    background: rgba(255, 255, 255, 0.2);
    margin: 0.25rem 0;
}

.btn {
    padding: 0.75rem 1rem;
    border: none;
    border-radius: 0.25rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-primary {
    background-color: var(--color-white);
    color: var(--color-purple-800);
}

.btn-primary:hover {
    background-color: var(--color-white-50);
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: var(--color-purple-600);
    color: var(--color-white);
    border: 1px solid var(--color-white-50);
}

.btn-secondary:hover {
    background-color: var(--color-purple-800);
    transform: translateY(-2px);
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 768px) {
    .cards-container {
        grid-template-columns: 1fr;
    }
}