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

body {
    font-family: 'Helvetica Neue', Arial, sans-serif;
    background-color: #f4f4f4;
    color: #333;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

/* Header */
header {
    background-color: #333;
    color: #FFF;
    padding: 1rem 0;
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: nowrap; /* Đảm bảo các phần tử không quấn */
}

header .logo {
    display: flex;
    align-items: center;
}

header .logo img {
    height: 50px;
    margin-right: 10px;
}

header .logo h1 {
    font-size: 1.5rem;
    margin: 0;
}

header nav ul {
    list-style: none;
    display: flex;
    margin: 0;
    padding: 0;
    gap: 2rem;
    flex-wrap: nowrap; /* Đảm bảo các mục không quấn */
}

header nav ul li {
    display: flex;
    align-items: center;
}

header nav ul li a {
    color: #fff;
    text-decoration: none;
}

header nav ul li a:hover {
    color: #ff5733;
}


header nav ul li:nth-child(1){
	position:relative;
}


header nav ul li:nth-child(1) input{
	height: 30px;
	width: 100%;
	border-radius: 5px;
	border: none;
	padding-left: 6px;
	outline: none;
}

header nav ul li:nth-child(1) i{
	position: absolute;
	font-size: 15px;
	right: 12px; 
	color: #333;
	line-height: 30px;
}

/* Media Queries */
@media (max-width: 768px) {
    header .container {
        flex-direction: column;
        align-items: center;
    }

    header .logo {
        margin-bottom: 1rem;
    }

    header nav ul {
        flex-direction: column;
        gap: 1rem;
    }

    header nav ul li {
        flex-grow: 1;
    }

    header nav ul li a {
        padding: 10px; /* Padding để tăng kích thước chọn */
        text-align: center; /* Căn giữa nội dung trong mục */
    }

    .hero h2 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .hero {
        padding: 4rem 0;
    }
}

@media (max-width: 480px) {
    header .logo img {
        height: 40px;
        margin-right: 8px;
    }

    header .logo h1 {
        font-size: 1.2rem;
    }

    header nav ul {
        flex-direction: column;
        gap: 0.5rem;
    }

    header nav ul li {
        flex-grow: 1;
    }

    header nav ul li a {
        padding: 8px; /* Giảm padding để các mục trông hợp lý hơn trên màn hình nhỏ */
    }

    .hero h2 {
        font-size: 1.5rem;
    }

    .hero p {
        font-size: 0.9rem;
    }

    .hero .btn {
        padding: 0.5rem 1rem;
    }

    .hero {
        padding: 3rem 0;
    }
}


/* Footer */
footer {
  background-color: #333;
  color: #fff;
  padding: 2rem 0;
}

.footer-content {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  margin-bottom: 2rem;
}

.footer-section {
  padding: 0 1rem;
  margin-bottom: 1.5rem;
}

.footer-section h3 {
  margin-bottom: 1rem;
  color: #ff5733;
}

.footer-section p,
.footer-section a {
  color: #fff;
  margin-bottom: 0.5rem;
  display: block;
  transition: color 0.3s;
}

.footer-section a:hover {
  color: #ff5733;
}

.footer-section a img {
  width: 28px;
  margin-right: 0.5rem;
}

.footer-bottom {
  text-align: center;
  border-top: 1px solid #777;
  padding-top: 1rem;
  color: #777;
}

/* Responsive Styles */
@media (min-width: 768px) {
  .footer-content {
    flex-direction: row;
  }

  .footer-section {
    flex: 1;
    margin-bottom: 0;
  }
}


/*con trỏ lướt lên*/

#scrollToTopBtn {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
/*con trỏ lướt lên*/    background-color: white;
    border: none;
    
    cursor: pointer;
    transition: background-color 0.3s ease;
}

#scrollToTopBtn:hover {
    background-color: light orange;
}

#scrollToTopBtn img {
    width: 60%;
    height: 60%;
	border: solid 2px black;
}








.footer-content button:hover{
	transform: scale(1.05);
	transition: all 0.3s ease;
	font-weight: bold;
}

    .login-section {
        padding: 60px 60px;
        background: #f4f6f9;
        font-family: 'Segoe UI', sans-serif;
	
    }

    .login-container {
        max-width: 400px;
        margin: auto;
        background: #fff;
        padding: 40px 30px;
        border-radius: 10px;
        box-shadow: 0 8px 16px rgba(0,0,0,0.15);
        text-align: center;
    }

    .login-container h2 {
        margin-bottom: 25px;
        color: #333;
    }

    .login-form .form-group {
        text-align: left;
        margin-bottom: 20px;
		
    }

    .login-form label {
        display: block;
        margin-bottom: 5px;
        font-weight: bold;
        color: #333;
    }

    .login-form input[type="text"],
    .login-form input[type="password"] {
        width: 100%;
        padding: 12px;
        border: 1px solid #ccc;
        border-radius: 8px;
        font-size: 16px;
        transition: border-color 0.3s;
    }

    .login-form input:focus {
        border-color: #007bff;
        outline: none;
    }

    .form-options {
        display: flex;
        justify-content: space-between;
        align-items: center;
        font-size: 14px;
        color: #555;
        margin-bottom: 20px;
    }

    .form-options a {
        color: #007bff;
        text-decoration: none;
    }

    .form-options a:hover {
        text-decoration: underline;
    }

    .login-btn {
        width: 100%;
        background-color: #007bff;
        color: white;
        padding: 12px;
        border: none;
        border-radius: 8px;
        font-size: 16px;
        cursor: pointer;
        transition: background-color 0.3s;
    }

    .login-btn:hover {
        background-color: #0056b3;
    }

    .register-text {
        margin-top: 15px;
        font-size: 14px;
        color: #555;
    }

    .register-text a {
        color: #007bff;
        text-decoration: none;
        font-weight: bold;
    }

    .register-text a:hover {
        text-decoration: underline;
    }


@media (max-width: 768px) {
    .login-container {
        width: 90%;
        padding: 30px 20px;
    }

    .login-container h2 {
        font-size: 1.5rem;
    }

    .login-form input[type="text"],
    .login-form input[type="password"] {
        padding: 10px;
        font-size: 15px;
    }

    .login-btn {
        padding: 10px;
        font-size: 15px;
    }

    .form-options {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }

    .register-text {
        font-size: 13px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .login-container {
        padding: 25px 15px;
    }

    .login-container h2 {
        font-size: 1.3rem;
    }

    .login-form label {
        font-size: 14px;
    }

    .login-form input[type="text"],
    .login-form input[type="password"] {
        padding: 8px;
        font-size: 14px;
    }

    .login-btn {
        padding: 10px;
        font-size: 14px;
    }

    .form-options {
        font-size: 12px;
    }

    .register-text {
        font-size: 12px;
    }
}