:root {
    --primary: #0066cc;
    --primary-dark: #004d99;
    --primary-light: #4d94ff;
    --secondary: #00a8ff;
    --accent: #ff6b6b;
    --accent-light: #ff9999;
    --dark: #1a1a2e;
    --darker: #0d0d1a;
    --light: #f8f9fa;
    --lighter: #ffffff;
    --gradient: linear-gradient(135deg, var(--primary), var(--secondary));
    --gradient-dark: linear-gradient(135deg, var(--primary-dark), #0097e6);
    --gradient-accent: linear-gradient(135deg, var(--accent), #ff8e8e);
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 25px 50px rgba(0, 0, 0, 0.15);
    --border-radius: 16px;
    --border-radius-lg: 24px;
    --transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.7;
    color: #333;
    overflow-x: hidden;
    background-color: var(--lighter);
}

.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background: var(--gradient-dark);
    padding: 20px;
}

.login-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 0;
}

.login-background::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="%23ffffff" fill-opacity="0.05" d="M0,96L48,112C96,128,192,160,288,186.7C384,213,480,235,576,213.3C672,192,768,128,864,128C960,128,1056,192,1152,192C1248,192,1344,128,1392,96L1440,64L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>');
    background-size: cover;
    background-position: center bottom;
}

.floating-elements {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    overflow: hidden;
}

.floating-element {
    position: absolute;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    animation: float 8s ease-in-out infinite;
}

.floating-element:nth-child(1) {
    width: 80px;
    height: 80px;
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.floating-element:nth-child(2) {
    width: 120px;
    height: 120px;
    top: 20%;
    right: 10%;
    animation-delay: 2s;
}

.floating-element:nth-child(3) {
    width: 60px;
    height: 60px;
    bottom: 20%;
    left: 15%;
    animation-delay: 4s;
}

.floating-element:nth-child(4) {
    width: 100px;
    height: 100px;
    bottom: 10%;
    right: 15%;
    animation-delay: 6s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
    }
    50% {
        transform: translateY(-25px) rotate(10deg);
    }
}

.login-card-wrapper {
    position: relative;
    z-index: 2;
    width: 100%;
    max-width: 440px;
}

.login-card {
    background: var(--lighter);
    border-radius: var(--border-radius-lg);
    padding: 40px 35px;
    box-shadow: var(--shadow-xl);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    animation: slideUp 0.6s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.login-header {
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    flex-direction: column;
    margin-bottom: 15px;
}

.logo-container {
    margin-bottom: 10px;
}

.login-logo {
    height: 80px;
    width: auto;
    border-radius: 8px;
}

.login-title {
    font-family: 'Poppins', sans-serif;
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 6px;
    background: var(--gradient);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

.login-subtitle {
    color: #6c757d;
    font-size: 1rem;
    margin-bottom: 0;
    max-width: 250px;
}

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

.form-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--dark);
    font-size: 0.95rem;
}

.input-group {
    position: relative;
    display: flex;
    align-items: center;
    border-radius: var(--border-radius);
    overflow: hidden;
}

.form-control {
    width: 100%;
    padding: 16px 20px;
    border: 2px solid #e8f0fe;
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
    background-color: #f8fafc;
    font-family: 'Inter', sans-serif;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    background-color: var(--lighter);
    border-radius: var(--border-radius);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

.password-toggle {
    position: absolute;
    right: 15px;
    border: none;
    background: none;
    color: var(--primary);
    cursor: pointer;
    z-index: 5;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
}

.password-toggle i {
    border: none;
    background: none;
    text-decoration: none;
}

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.form-check {
    display: flex;
    align-items: center;
}

.form-check-input {
    margin-right: 8px;
    width: 18px;
    height: 18px;
    border: 2px solid #dee2e6;
    border-radius: 4px;
    cursor: pointer;
}

.form-check-input:checked {
    background-color: var(--primary);
    border-color: var(--primary);
}

.form-check-label {
    font-size: 0.9rem;
    color: #6c757d;
    cursor: pointer;
}

.forgot-password {
    color: var(--primary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition);
}

.forgot-password:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

.login-btn {
    width: 100%;
    padding: 16px 24px;
    background: var(--gradient);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-bottom: 14px;
    position: relative;
    overflow: hidden;
}

.login-btn::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: var(--transition);
}

.login-btn:hover::before {
    left: 100%;
}

.login-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-text {
    position: relative;
    z-index: 1;
}

.btn-icon {
    position: relative;
    z-index: 1;
    transition: var(--transition);
}

.login-btn:hover .btn-icon {
    transform: translateX(5px);
}

.back-to-home {
    margin-bottom: 25px;
}

.back-btn {
    width: 100%;
    padding: 14px 24px;
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    position: relative;
    overflow: hidden;
}

.back-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 102, 204, 0.1), transparent);
    transition: var(--transition);
}

.back-btn:hover::before {
    left: 100%;
}

.back-btn:hover {
    background: var(--primary);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.back-btn:hover i {
    transform: translateX(-3px);
}

.back-btn i {
    transition: var(--transition);
}

.login-btn:focus,
.back-btn:focus,
.form-control:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.3);
}

@media (max-width: 575.98px) {
    .login-container {
        padding: 15px;
    }
    
    .login-card {
        padding: 30px 25px;
    }
    
    .login-title {
        font-size: 1.8rem;
    }
    
    .login-logo {
        height: 70px;
    }
    
    .back-btn {
        padding: 12px 20px;
        font-size: 0.95rem;
    }
}

@media (max-width: 767.98px) {
    .form-options {
        flex-direction: column;
        gap: 15px;
        align-items: flex-start;
    }
}

@media (max-width: 991.98px) {
    .login-card-wrapper {
        max-width: 400px;
    }
}