/* ============================================
   云海聊天 - 登录页面样式
   ============================================ */

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

@import url('https://fonts.googleapis.com/css2?family=Comfortaa:wght@400;600;700&display=swap');

body {
    font-family: 'Comfortaa', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    background: #ffffff;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ========== 应用根容器 ========== */
#app {
    width: 100%;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    padding: 0;
}

/* ========== 登录页面包装 ========== */
.login-page {
    width: 100%;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.login-page .login-header,
.login-page .login-form {
    width: 100%;
    max-width: 400px;
}

/* ========== Logo 头部 ========== */
.login-header {
    text-align: center;
    margin-bottom: 35px;
}

.logo {
    margin-bottom: 15px;
    display: inline-block;
}

.logo img {
    width: 100px;
    height: 100px;
    object-fit: cover;
    border-radius: 50%;
}

.login-header h1 {
    font-size: 26px;
    font-weight: 700;
    color: #1a1a2e;
    letter-spacing: 2px;
    margin-bottom: 5px;
}

.login-header p {
    font-size: 13px;
    color: #999;
    letter-spacing: 1px;
}

/* ========== 表单 ========== */
.login-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
    width: 100%;
}

.form-group {
    padding: 0;
}

.form-group input {
    width: 100%;
    border: none;
    border-bottom: none;
    outline: none;
    padding: 14px 0;
    font-size: 15px;
    color: #333;
    background: transparent;
}

.form-group input::placeholder {
    color: #bbb;
}

/* ========== 登录按钮 ========== */
.login-btn {
    width: 100%;
    padding: 14px;
    border: none;
    border-radius: 12px;
    background: #0075f2;
    color: #fff;
    font-size: 16px;
    font-weight: 600;
    letter-spacing: 3px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.login-btn:hover {
    background: #357abd;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(74, 144, 217, 0.35);
}

.login-btn:active {
    transform: translateY(0);
    background: #2b6cb0;
}

.login-btn.loading {
    pointer-events: none;
    opacity: 0.8;
}

.login-btn.loading .btn-text {
    display: none;
}

.login-btn.loading .btn-loading {
    display: flex;
    align-items: center;
    justify-content: center;
}

.spinner {
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* ========== 错误提示 ========== */
.error-msg {
    text-align: center;
    color: #e74c3c;
    font-size: 13px;
    padding: 10px 15px;
    background: #fef0ef;
    border-radius: 8px;
    border: 1px solid #fde2e2;
    animation: shake 0.4s ease;
}

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

@keyframes yh-spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* ========== 响应式 ========== */
@media (max-width: 480px) {
    .login-page {
        padding: 15px;
    }

    .login-header h1 {
        font-size: 22px;
    }

    .form-group input {
        padding: 12px 0;
        font-size: 14px;
    }

    .login-btn {
        padding: 12px;
        font-size: 15px;
    }
}