html {
    scroll-behavior: smooth;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #F2F2F2 0%, #ffffff 25%, #F2F2F2 50%, #ffffff 75%, #F2F2F2 100%);
    background-attachment: fixed;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    position: relative;
    overflow-x: hidden;
    transition: background 0.3s;
    scroll-behavior: smooth;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 50%, rgba(241, 90, 93, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(228, 58, 62, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, rgba(210, 32, 39, 0.08) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
    transition: background 0.3s;
}

.login-container {
    max-width: 420px;
    width: 100%;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    padding: 30px;
    border-radius: 20px;
    box-shadow: 0 8px 32px rgba(210, 32, 39, 0.15);
    border: 1px solid rgba(210, 32, 39, 0.1);
    position: relative;
    z-index: 1;
    transition: all 0.3s;
}

.login-header {
    text-align: center;
    margin-bottom: 25px;
}

.login-header-logo {
    height: 50px;
    width: auto;
    max-width: 150px;
    object-fit: contain;
    margin-bottom: 15px;
    display: block;
    margin-left: auto;
    margin-right: auto;
}

.login-header h1 {
    color: #222222;
    font-size: 24px;
    margin-bottom: 10px;
    transition: color 0.3s;
    font-weight: 600;
    line-height: 1.3;
}

.login-header .role-badge {
    display: inline-block;
    background: linear-gradient(135deg, rgba(210, 32, 39, 0.8) 0%, rgba(228, 58, 62, 0.8) 50%, rgba(241, 90, 93, 0.8) 100%);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: white;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 4px 15px rgba(210, 32, 39, 0.4);
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #222222;
    font-size: 14px;
    transition: color 0.3s;
}

.form-group input {
    width: 100%;
    padding: 12px;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(210, 32, 39, 0.2);
    border-radius: 10px;
    font-size: 14px;
    color: #222222;
    transition: all 0.3s;
    font-family: inherit;
}

.form-group input::placeholder {
    color: rgba(34, 34, 34, 0.5);
}

.form-group input:focus {
    outline: none;
    border-color: rgba(210, 32, 39, 0.8);
    background: rgba(255, 255, 255, 1);
    box-shadow: 0 0 0 3px rgba(210, 32, 39, 0.2), 0 4px 15px rgba(210, 32, 39, 0.3);
}

.btn {
    width: 100%;
    padding: 12px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    margin-top: 10px;
}

.btn-primary {
    background: linear-gradient(135deg, rgba(210, 32, 39, 0.9) 0%, rgba(228, 58, 62, 0.9) 50%, rgba(241, 90, 93, 0.9) 100%);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 4px 15px rgba(210, 32, 39, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(210, 32, 39, 0.6);
    background: linear-gradient(135deg, rgba(210, 32, 39, 1) 0%, rgba(228, 58, 62, 1) 50%, rgba(241, 90, 93, 1) 100%);
}

.btn-secondary {
    background: rgba(34, 34, 34, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: white;
    margin-top: 15px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.btn-secondary:hover {
    background: rgba(0, 0, 0, 0.9);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.5);
}

.alert {
    padding: 12px 15px;
    border-radius: 10px;
    margin-bottom: 20px;
    font-size: 14px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s;
}

.alert-error {
    background: rgba(210, 32, 39, 0.1);
    color: #D22027;
    border: 1px solid rgba(210, 32, 39, 0.3);
    box-shadow: 0 4px 15px rgba(210, 32, 39, 0.1);
}

.alert-success {
    background: rgba(40, 167, 69, 0.1);
    color: #155724;
    border: 1px solid rgba(40, 167, 69, 0.3);
    box-shadow: 0 4px 15px rgba(40, 167, 69, 0.1);
}

.hidden {
    display: none;
}

.links {
    text-align: center;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid rgba(210, 32, 39, 0.2);
}

.links a {
    color: #222222;
    text-decoration: none;
    font-size: 14px;
    margin: 0 10px;
    transition: all 0.3s;
}

.links a:hover {
    text-decoration: underline;
    color: #D22027;
}

.icon {
    font-size: 48px;
    text-align: center;
    margin-bottom: 20px;
    color: #D22027;
    filter: drop-shadow(0 2px 4px rgba(210, 32, 39, 0.3));
}

/* Dark Mode Toggle */
.dark-mode-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(210, 32, 39, 0.2);
    border-radius: 25px;
    padding: 8px 15px;
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s;
}

.dark-mode-toggle:hover {
    box-shadow: 0 6px 20px rgba(210, 32, 39, 0.3);
    transform: translateY(-2px);
}

.dark-mode-toggle span {
    font-size: 14px;
    font-weight: 600;
    color: #222222;
}

.toggle-switch {
    width: 50px;
    height: 26px;
    background: #ccc;
    border-radius: 13px;
    position: relative;
    transition: background 0.3s;
}

.toggle-switch::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: white;
    top: 3px;
    left: 3px;
    transition: left 0.3s;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

body.dark-mode .toggle-switch {
    background: #D22027;
}

body.dark-mode .toggle-switch::after {
    left: 27px;
}

/* Dark Mode Styles */
body.dark-mode {
    background: linear-gradient(135deg, #1a1a1a 0%, #000000 25%, #1a1a1a 50%, #000000 75%, #1a1a1a 100%);
}

body.dark-mode::before {
    background: 
        radial-gradient(circle at 20% 50%, rgba(241, 90, 93, 0.2) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(228, 58, 62, 0.2) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, rgba(210, 32, 39, 0.15) 0%, transparent 50%);
}

body.dark-mode .login-container {
    background: rgba(34, 34, 34, 0.8);
    border: 1px solid rgba(210, 32, 39, 0.3);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
}

body.dark-mode .login-header h1 {
    color: #F2F2F2;
}

body.dark-mode .form-group label {
    color: #F2F2F2;
}

body.dark-mode .form-group input {
    background: rgba(34, 34, 34, 0.6);
    border: 1px solid rgba(210, 32, 39, 0.3);
    color: #F2F2F2;
}

body.dark-mode .form-group input::placeholder {
    color: rgba(242, 242, 242, 0.5);
}

body.dark-mode .form-group input:focus {
    background: rgba(34, 34, 34, 0.8);
    border-color: rgba(210, 32, 39, 0.8);
}

body.dark-mode .links {
    border-top: 1px solid rgba(210, 32, 39, 0.3);
}

body.dark-mode .links a {
    color: #F2F2F2;
}

body.dark-mode .links a:hover {
    color: #F15A5D;
}

body.dark-mode .alert-error {
    background: rgba(210, 32, 39, 0.3);
    color: #F2F2F2;
    border: 1px solid rgba(210, 32, 39, 0.5);
}

body.dark-mode .alert-success {
    background: rgba(40, 167, 69, 0.3);
    color: #F2F2F2;
    border: 1px solid rgba(40, 167, 69, 0.5);
}

body.dark-mode .dark-mode-toggle {
    background: rgba(34, 34, 34, 0.9);
    border: 1px solid rgba(210, 32, 39, 0.3);
}

body.dark-mode .dark-mode-toggle span {
    color: #F2F2F2;
}

@media (max-width: 768px) {
    body {
        padding: 15px;
    }

    .login-container {
        padding: 25px 20px;
        border-radius: 15px;
    }

    .login-header-logo {
        height: 40px;
        max-width: 120px;
    }
    
    .login-header h1 {
        font-size: 20px;
    }

    .form-group {
        margin-bottom: 18px;
    }

    .form-group input {
        padding: 11px 14px;
        font-size: 14px;
    }

    .btn {
        padding: 11px;
        font-size: 15px;
    }

    .links {
        margin-top: 18px;
        padding-top: 18px;
    }

    .links a {
        font-size: 13px;
        margin: 0 8px;
        display: inline-block;
        margin-bottom: 5px;
    }

    .dark-mode-toggle {
        top: 10px;
        right: 10px;
        padding: 6px 12px;
    }
    
    .dark-mode-toggle span {
        font-size: 12px;
    }
    
    .toggle-switch {
        width: 40px;
        height: 22px;
    }
    
    .toggle-switch::after {
        width: 16px;
        height: 16px;
        top: 3px;
        left: 3px;
    }
    
    body.dark-mode .toggle-switch::after {
        left: 21px;
    }
}

@media (max-width: 480px) {
    body {
        padding: 10px;
    }

    .login-container {
        padding: 20px 15px;
        border-radius: 12px;
        max-width: 100%;
    }

    .login-header {
        margin-bottom: 20px;
    }

    .login-header-logo {
        height: 35px;
        max-width: 100px;
        margin-bottom: 12px;
    }
    
    .login-header h1 {
        font-size: 18px;
        margin-bottom: 8px;
        line-height: 1.4;
    }

    .login-header .role-badge {
        padding: 4px 12px;
        font-size: 11px;
    }

    .form-group {
        margin-bottom: 16px;
    }

    .form-group label {
        font-size: 13px;
        margin-bottom: 6px;
    }

    .form-group input {
        padding: 10px 12px;
        font-size: 14px;
        border-radius: 8px;
    }

    .btn {
        padding: 10px;
        font-size: 14px;
        margin-top: 8px;
        border-radius: 7px;
    }

    .alert {
        padding: 10px 12px;
        font-size: 13px;
        margin-bottom: 16px;
        border-radius: 8px;
    }

    .links {
        margin-top: 15px;
        padding-top: 15px;
        display: flex;
        flex-direction: column;
        gap: 8px;
        align-items: center;
    }

    .links a {
        font-size: 12px;
        margin: 0;
        display: block;
        padding: 5px 0;
    }

    .dark-mode-toggle {
        top: 8px;
        right: 8px;
        padding: 5px 10px;
        border-radius: 20px;
    }
    
    .dark-mode-toggle span {
        font-size: 11px;
    }
    
    .toggle-switch {
        width: 36px;
        height: 20px;
    }
    
    .toggle-switch::after {
        width: 14px;
        height: 14px;
        top: 3px;
        left: 3px;
    }
    
    body.dark-mode .toggle-switch::after {
        left: 19px;
    }
}