/* 기본 스타일 초기화 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Noto Sans KR', sans-serif;
}

:root {
    --primary-color: #ff4444;
    --primary-dark: #cc3333;
    --primary-light: #ff6666;
    --secondary-color: #333333;
    --background-color: #1a1a1a;
    --card-background: #2a2a2a;
    --text-color: #ffffff;
    --text-secondary: #aaaaaa;
    --accent-color: #44ff44;
    --border-radius: 10px;
    --transition-speed: 0.3s;
    --box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
}

body {
    background-color: var(--background-color);
    color: var(--text-color);
    min-height: 100vh;
    position: relative;
    padding-bottom: 20px;
    font-weight: 400;
    line-height: 1.6;
}

/* 네비게이션 바 */
.navbar {
    background-color: var(--primary-color);
    padding: 12px 20px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.back-button {
    color: white;
    text-decoration: none;
    display: flex;
    align-items: center;
    font-weight: 500;
    transition: transform var(--transition-speed);
}

.back-button:hover {
    transform: translateX(-5px);
}

.back-button i {
    margin-right: 8px;
}

/* 메인 컨테이너 */
.container {
    max-width: 1200px;
    margin: 20px auto;
    padding: 1.5rem;
    background-color: rgba(42, 42, 42, 0.6);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

/* 헤더 */
.header {
    margin-bottom: 2rem;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.header-title {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    margin-bottom: 15px;
}

.header-title i {
    font-size: 2.5rem;
    color: var(--primary-color);
}

.header h1 {
    font-size: 2.5rem;
    color: var(--primary-color);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    font-weight: 700;
}

.header-actions {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.action-buttons {
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
}

/* 버튼 스타일 */
.create-room-btn, .guide-btn {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 12px 20px;
    font-size: 1rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition-speed);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 500;
    min-width: 140px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

.create-room-btn i, .guide-btn i {
    margin-right: 8px;
    font-size: 1.1rem;
}

.create-room-btn:hover, .guide-btn:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

.create-room-btn:active, .guide-btn:active {
    transform: translateY(0);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.guide-btn {
    background-color: #3498db;
}

.guide-btn:hover {
    background-color: #2980b9;
}

.primary-btn {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: background-color var(--transition-speed);
    font-weight: 500;
}

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

.secondary-btn {
    background-color: #555;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: background-color var(--transition-speed);
    font-weight: 500;
}

.secondary-btn:hover {
    background-color: #444;
}

/* 섹션 타이틀 */
.section-title {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--text-color);
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.section-title i {
    color: var(--primary-color);
}

/* 방 목록 */
.rooms-section {
    margin-top: 1rem;
}

.room-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
    margin-top: 1.5rem;
}

.room-card {
    background-color: var(--card-background);
    border-radius: var(--border-radius);
    padding: 1.2rem;
    display: flex;
    flex-direction: column;
    gap: 15px;
    box-shadow: var(--box-shadow);
    transition: all var(--transition-speed);
    border-left: 4px solid transparent;
    cursor: pointer;
}

.room-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.4);
    border-left: 4px solid var(--primary-color);
}

.room-info {
    display: flex;
    gap: 15px;
}

.room-icon-container {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 40px;
    width: 40px;
    background-color: rgba(255, 68, 68, 0.1);
    border-radius: 50%;
}

.room-icon {
    font-size: 1.2rem;
    color: var(--primary-color);
}

.room-details {
    flex: 1;
}

.room-details h3 {
    margin-bottom: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-color);
}

.room-details p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 5px;
}

.room-details p i {
    font-size: 0.8rem;
    color: #ffcc00;
}

.room-details p i.fa-users {
    color: #3498db;
}

.room-status {
    display: inline-block;
    background-color: #3a3a3a;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    align-self: flex-end;
}

.status-waiting {
    color: var(--accent-color);
    background-color: rgba(68, 255, 68, 0.1);
}

.status-playing {
    color: var(--primary-color);
    background-color: rgba(255, 68, 68, 0.1);
}

/* 검색 컨테이너 */
.search-container {
    display: flex;
    align-items: center;
    gap: 10px;
    background-color: #333;
    border-radius: var(--border-radius);
    padding: 5px;
    max-width: 500px;
    margin: 0 auto;
    width: 100%;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
}

#room-search {
    flex: 1;
    padding: 10px 15px;
    border: none;
    border-radius: 5px;
    font-size: 0.9rem;
    color: var(--text-color);
    background-color: #444;
    outline: none;
    transition: background-color var(--transition-speed);
}

#room-search:focus {
    background-color: #555;
}

#room-search::placeholder {
    color: #aaa;
}

#search-btn {
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 5px;
    padding: 10px;
    cursor: pointer;
    transition: background-color var(--transition-speed);
}

#search-btn:hover {
    background-color: var(--primary-dark);
}

/* 모달 관련 스타일 */
.modal {
    display: none;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: var(--card-background);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    z-index: 1000;
    width: 90%;
    max-width: 500px;
    color: var(--text-color);
    overflow: hidden;
}

.modal-header {
    background-color: var(--primary-color);
    padding: 15px 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-header h2 {
    color: white;
    font-size: 1.3rem;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 10px;
}

.modal-header h2 i {
    font-size: 1.2rem;
}

.modal-body {
    padding: 20px;
}

.modal-footer {
    padding: 15px 20px;
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    background-color: rgba(0, 0, 0, 0.1);
}

.input-group {
    margin-bottom: 20px;
}

.input-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 0.9rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.input-group label i {
    color: var(--primary-color);
}

.input-group input {
    width: 100%;
    padding: 12px;
    border: 1px solid #444;
    border-radius: var(--border-radius);
    background-color: #333;
    color: var(--text-color);
    font-size: 0.95rem;
    transition: border-color var(--transition-speed), box-shadow var(--transition-speed);
}

.input-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(255, 68, 68, 0.2);
}

/* 모달 콘텐츠 스타일 (이름 변경 모달용) */
.modal-content {
    padding: 20px;
    width: 100%;
}

.modal-content h3 {
    text-align: center;
    margin-bottom: 20px;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

/* 환영 메시지 스타일 */
.welcome-message {
    background: linear-gradient(135deg, rgba(255, 68, 68, 0.1), rgba(68, 255, 68, 0.1));
    border-left: 4px solid var(--primary-color);
    padding: 15px;
    margin-bottom: 20px;
    border-radius: var(--border-radius);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.welcome-message p {
    margin: 0;
    color: var(--text-color);
    font-size: 0.95rem;
    line-height: 1.5;
    display: flex;
    align-items: center;
    gap: 10px;
}

.welcome-message i {
    color: var(--primary-color);
    font-size: 1.1rem;
    animation: wave 2s ease-in-out infinite;
}

@keyframes wave {
    0%, 100% { transform: rotate(0deg); }
    25% { transform: rotate(20deg); }
    75% { transform: rotate(-10deg); }
}

.modal-buttons {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 20px;
}

/* 결과 텍스트 */
#result-text {
    margin: 10px 0;
    font-size: 1.1rem;
    line-height: 1.6;
    text-align: center;
}

/* 모달 배경 효과 */
.modal-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    z-index: 999;
    display: none;
    backdrop-filter: blur(3px);
}

/* 유저 ID 표시 */
.user-id-display {
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
    padding: 8px 15px;
    border-radius: 20px;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: background-color var(--transition-speed);
}

.user-id-display i {
    color: var(--primary-color);
}

.user-id-display:hover {
    background-color: rgba(255, 255, 255, 0.2);
}

.clickable {
    cursor: pointer;
}

.clickable:hover {
    text-decoration: underline;
}

/* 모달 활성화 상태 */
.modal.active,
.modal-background.active {
    display: block;
}

/* 숨김 상태 */
.hidden {
    display: none !important;
}

/* 모바일 반응형 스타일 */
@media (max-width: 768px) {
    .header {
        gap: 15px;
    }

    .header-title {
        gap: 10px;
    }

    .header-title i {
        font-size: 2rem;
    }

    .header h1 {
        font-size: 2rem;
    }

    .room-list {
        grid-template-columns: 1fr;
    }

    .action-buttons {
        flex-direction: column;
    }

    .create-room-btn, .guide-btn {
        width: 100%;
    }

    .section-title {
        font-size: 1.3rem;
    }

    .navbar {
        padding: 10px 15px;
    }

    .back-text {
        display: none;
    }

    .back-button i {
        margin-right: 0;
        font-size: 1.2rem;
    }

    .modal {
        width: 95%;
        max-width: 400px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 1rem;
    }

    .room-card {
        padding: 1rem;
    }

    .room-info {
        gap: 10px;
    }

    .room-icon-container {
        height: 35px;
        width: 35px;
    }

    .room-details h3 {
        font-size: 1rem;
    }

    .room-details p {
        font-size: 0.8rem;
    }

    .modal-header {
        padding: 12px 15px;
    }

    .modal-body {
        padding: 15px;
    }

    .modal-footer {
        padding: 12px 15px;
    }

    .input-group input {
        padding: 10px;
    }

    .input-group {
        margin-bottom: 15px;
    }
}