/* ===== 로그인 페이지 전용 CSS ===== */
/* login.css */

/* CSS 변수 정의 (기존 스타일과 일치) */
:root {
    --primary-color: #F54233;
    --background-color: #f4f4f9;
    --text-color: #161616;
    --light-gray: #e7e7e7;
    --dark-gray: #4d4d4d;
    --white: #ffffff;
    --shadow-light: rgba(0, 0, 0, 0.1);
    --shadow-medium: rgba(0, 0, 0, 0.15);
    --border-radius: 12px;
    --transition: all 0.3s ease;
}

/* 로그인 페이지 바디 스타일 리셋 */
body.login-page {
    margin: 0;
    padding: 0;
    background: black;
    color: var(--text-color);
    font-family: 'Arial', sans-serif;
    height: 100vh;
    overflow-x: hidden;
    position: relative;
}

/* 배경 애니메이션 효과
body.login-page::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 80%, rgba(245, 66, 51, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 20%, rgba(245, 66, 51, 0.08) 0%, transparent 50%),
                radial-gradient(circle at 40% 40%, rgba(255, 255, 255, 0.02) 0%, transparent 50%);
    pointer-events: none;
    z-index: 1;
} */

/* 로그인 컨테이너 */
.login-container {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 2rem;
    box-sizing: border-box;
}

/* 로고 스타일 */
.main-logo {
    width: 400px;
    height: auto;
    max-width: 90vw;
    margin-bottom: 1rem;
    filter: drop-shadow(0 4px 20px rgba(0, 0, 0, 0.3));
    transition: var(--transition);
}

/* .main-logo:hover {
    transform: scale(1.02);
    filter: drop-shadow(0 6px 25px rgba(0, 0, 0, 0.4));
} */

.care5g_logo {
    width: 220px;
    height: auto;
    max-width: 70vw;
    margin-bottom: 3rem;
    filter: drop-shadow(0 2px 15px rgba(0, 0, 0, 0.2));
    transition: var(--transition);
}

/* .care5g_logo:hover {
    transform: scale(1.02);
} */

/* 로그인 폼 */
.login-form {
    background: rgb(14, 14, 14);
    padding: 3rem;
    border-radius: var(--border-radius);
    width: 350px;
    max-width: 60vw;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
    transition: var(--transition);
}

/* .login-form::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), #ff6b5b);
    border-radius: var(--border-radius) var(--border-radius) 0 0;
} */

/* .login-form:hover {
    transform: translateY(-5px);
    box-shadow: 0 25px 70px rgba(0, 0, 0, 0.35),
                0 10px 25px rgba(0, 0, 0, 0.25);
} */

/* 폼 제목 */
.login-form h2 {
    text-align: center;
    color: var(--light-gray);
    margin: 0 0 2rem 0;
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    position: relative;
}

.login-form h2::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), #ff6b5b);
    border-radius: 2px;
}

/* 폼 그룹 */
.form-group {
    margin-bottom: 2rem;
    position: relative;
}

.form-group label {
    display: block;
    margin-bottom: 0.8rem;
    color: var(--light-gray);
    font-weight: 600;
    font-size: 1rem;
    letter-spacing: 0.3px;
    transition: var(--transition);
}

.form-group input {
    width: 100%;
    padding: 1rem;
    border: 2px solid var(--light-gray);
    border-radius: 8px;
    font-size: 1rem;
    background-color: var(--white);
    color: var(--text-color);
    transition: var(--transition);
    box-sizing: border-box;
    position: relative;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(245, 66, 51, 0.1);
    transform: translateY(-2px);
}

.form-group input:focus + label,
.form-group input:not(:placeholder-shown) + label {
    color: var(--primary-color);
    transform: scale(0.95);
}

/* 플레이스홀더 스타일 */
.form-group input::placeholder {
    color: #999;
    opacity: 0.7;
}

/* 입력 필드 호버 효과 */
.form-group input:hover:not(:focus) {
    border-color: #ccc;
    transform: translateY(-1px);
}

/* 제출 버튼 */
.login-form button[type="submit"] {
    width: 100%;
    padding: 1.2rem;
    background: linear-gradient(135deg, var(--primary-color), #ff6b5b);
    color: var(--white);
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    cursor: pointer;
    transition: var(--transition);
    text-transform: uppercase;
    position: relative;
    overflow: hidden;
    margin-top: 1rem;
}

.login-form button[type="submit"]::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.6s ease;
}

.login-form button[type="submit"]:hover::before {
    left: 100%;
}

.login-form button[type="submit"]:hover {
    background: linear-gradient(135deg, #d63527, #e74c3c);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(245, 66, 51, 0.4);
}

.login-form button[type="submit"]:active {
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(245, 66, 51, 0.3);
}

/* 로딩 상태 */
.login-form button[type="submit"]:disabled {
    background: var(--light-gray);
    color: #999;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* ===== 반응형 디자인 ===== */

/* 태블릿 (1024px 이하) */
@media (max-width: 1024px) {
    .login-container {
        padding: 1.5rem;
    }
    
    .main-logo {
        width: 250px;
        margin-bottom: 0.8rem;
    }
    
    .care5g_logo {
        width: 170px;
        margin-bottom: 2.5rem;
    }
    
    .login-form {
        padding: 2.5rem;
        max-width: 400px;
    }
    
    .login-form h2 {
        font-size: 1.8rem;
        margin-bottom: 2rem;
    }
    
    .form-group {
        margin-bottom: 1.8rem;
    }
    
    .form-group input {
        padding: 0.9rem;
        font-size: 0.95rem;
    }
    
    .login-form button[type="submit"] {
        padding: 1.1rem;
        font-size: 1rem;
    }
}

/* 모바일 (768px 이하) */
@media (max-width: 768px) {
    .login-container {
        padding: 1rem;
        justify-content: flex-start;
        padding-top: 5vh;
    }
    
    .main-logo {
        width: 200px;
        margin-bottom: 0.6rem;
    }
    
    .care5g_logo {
        width: 140px;
        margin-bottom: 2rem;
    }
    
    .login-form {
        padding: 2rem;
        max-width: 300px;
        margin: 0 auto;
    }
    
    .login-form h2 {
        font-size: 1.6rem;
        margin-bottom: 1.8rem;
    }
    
    .form-group {
        margin-bottom: 1.5rem;
    }
    
    .form-group label {
        font-size: 0.9rem;
        margin-bottom: 0.6rem;
    }
    
    .form-group input {
        padding: 0.8rem;
        font-size: 0.9rem;
    }
    
    .login-form button[type="submit"] {
        padding: 1rem;
        font-size: 0.95rem;
    }
}

/* 작은 모바일 (480px 이하) */
@media (max-width: 480px) {
    .login-container {
        padding: 0.8rem;
        padding-top: 3vh;
    }
    
    .main-logo {
        width: 180px;
        margin-bottom: 0.5rem;
    }
    
    .care5g_logo {
        width: 120px;
        margin-bottom: 1.5rem;
    }
    
    .login-form {
        padding: 1.5rem;
        max-width: 320px;
        border-radius: 10px;
    }
    
    .login-form h2 {
        font-size: 1.4rem;
        margin-bottom: 1.5rem;
    }
    
    .form-group {
        margin-bottom: 1.3rem;
    }
    
    .form-group label {
        font-size: 0.85rem;
        margin-bottom: 0.5rem;
    }
    
    .form-group input {
        padding: 0.7rem;
        font-size: 0.85rem;
        border-radius: 6px;
    }
    
    .login-form button[type="submit"] {
        padding: 0.9rem;
        font-size: 0.9rem;
        border-radius: 6px;
    }
}

/* 초소형 모바일 (360px 이하) */
@media (max-width: 360px) {
    .login-container {
        padding: 0.5rem;
        padding-top: 2vh;
    }
    
    .main-logo {
        width: 160px;
    }
    
    .care5g_logo {
        width: 100px;
        margin-bottom: 1rem;
    }
    
    .login-form {
        padding: 1.2rem;
        max-width: 280px;
    }
    
    .login-form h2 {
        font-size: 1.2rem;
        margin-bottom: 1.2rem;
    }
    
    .form-group input {
        padding: 0.6rem;
        font-size: 0.8rem;
    }
    
    .login-form button[type="submit"] {
        padding: 0.8rem;
        font-size: 0.85rem;
    }
}

/* ===== 접근성 및 특수 효과 ===== */

/* 포커스 접근성 향상 */
.form-group input:focus-visible {
    outline: 3px solid rgba(245, 66, 51, 0.5);
    outline-offset: 2px;
}

.login-form button[type="submit"]:focus-visible {
    outline: 3px solid rgba(245, 66, 51, 0.5);
    outline-offset: 2px;
}

/* 에러 상태 스타일 */
.form-group.error input {
    border-color: #e74c3c;
    background-color: #fff5f5;
    animation: shake 0.5s ease-in-out;
}

.form-group.error label {
    color: #e74c3c;
}

/* 흔들림 애니메이션 */
@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

/* 성공 상태 스타일 */
.form-group.success input {
    border-color: #27ae60;
    background-color: #f8fff8;
}

.form-group.success label {
    color: #27ae60;
}

/* 다크 모드 지원 */
/* @media (prefers-color-scheme: dark) {
    .login-form {
        background: rgba(255, 255, 255, 0.95);
    }
    
    .form-group input {
        background-color: var(--white);
    }
} */

/* 애니메이션 감소 설정 */
@media (prefers-reduced-motion: reduce) {
    * {
        transition: none !important;
        animation: none !important;
    }
    
    .login-form:hover {
        transform: none;
    }
    
    .main-logo:hover,
    .care5g_logo:hover {
        transform: none;
    }
}

/* 프린트 스타일 */
@media print {
    body.login-page {
        background: white;
    }
    
    .login-form {
        box-shadow: none;
        border: 1px solid #ccc;
    }
    
    .login-form button[type="submit"] {
        background: #ccc;
        color: black;
    }
}