:root {
    --primary: #4F46E5;
    --primary-hover: #4338CA;
    --secondary: #06B6D4;
    --text: #0F172A;
    --text-muted: #64748B;
    --background: #F8FAFC;
    --white: #FFFFFF;
    --glass: rgba(255, 255, 255, 0.85);
    --shadow-premium: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    transition: all 0.2s ease-out;
}

body {
    font-family: 'Inter', sans-serif !important;
    background: linear-gradient(135deg, #f0f4f8 0%, #d9e2ec 100%) !important;
    min-height: 100vh !important;
    display: flex !important;
    flex-direction: column !important;
    justify-content: space-between !important;
    overflow-x: hidden !important;
}

header.masthead {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%) !important;
    flex: 0 0 auto !important;
    min-height: 160px !important;
    height: 25vh !important;
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
    justify-content: center !important;
    padding: 20px 0 !important;
    position: relative;
}

header.masthead img {
    filter: drop-shadow(0 10px 15px rgba(0,0,0,0.2));
    max-height: clamp(60px, 15vh, 120px) !important;
    z-index: 2;
    animation: fadeInDown 0.8s ease-out;
}

.main-content {
    flex: 1 1 auto !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    margin-top: -50px !important;
    z-index: 10;
    position: relative;
    padding: 20px !important;
}

.main-content .content {
    background: var(--glass) !important;
    backdrop-filter: blur(12px) !important;
    -webkit-backdrop-filter: blur(12px) !important;
    padding: clamp(20px, 4vh, 40px) clamp(30px, 5vw, 60px) !important;
    border-radius: 24px !important;
    box-shadow: var(--shadow-premium) !important;
    border: 1px solid rgba(255, 255, 255, 0.4);
    animation: fadeInUp 0.8s ease-out;
    width: 100%;
    max-width: 480px;
}

.main-content h1 {
    font-size: clamp(20px, 3vh, 24px) !important;
    color: var(--text) !important;
    font-weight: 800 !important;
    margin-bottom: 8px !important;
    letter-spacing: -0.5px;
    text-align: center;
}

.main-content p {
    color: var(--text-muted) !important;
    margin-bottom: clamp(15px, 3vh, 30px) !important;
    font-size: clamp(12px, 1.8vh, 14px) !important;
    text-align: center;
    line-height: 1.4;
}

.login-form .form-group {
    background: rgba(255, 255, 255, 0.5);
    border-radius: 12px;
    padding: 2px 15px;
    margin-bottom: clamp(12px, 2.5vh, 20px) !important;
    border: 1px solid #E2E8F0;
    display: flex;
    align-items: center;
}

.login-form .form-group:focus-within {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.1);
    background: var(--white);
}

.form-group label.icon-bg {
    width: 20px !important;
    height: 20px !important;
    opacity: 0.5;
    margin-right: 12px !important;
    background-size: contain !important;
    background-position: center !important;
}

.form-control {
    border: none !important;
    background: transparent !important;
    font-family: 'Inter', sans-serif !important;
    font-size: 14px !important;
    padding: 12px 0 !important;
    font-weight: 500 !important;
    color: var(--text) !important;
    flex-grow: 1;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, #6366f1 100%) !important;
    border: none !important;
    padding: clamp(12px, 2vh, 16px) !important;
    font-weight: 700 !important;
    font-size: 14px !important;
    letter-spacing: 0.5px !important;
    text-transform: uppercase;
    box-shadow: 0 10px 15px -3px rgba(79, 70, 229, 0.4) !important;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
    border-radius: 12px !important;
    margin-top: 5px;
    width: 100%;
}

footer {
    flex: 0 0 auto !important;
    padding: 20px 0 !important;
    z-index: 5;
    width: 100%;
}

.copyright {
    color: #475569 !important; /* Higher contrast indigo-slate */
    font-weight: 700 !important;
    font-size: 11px !important;
    text-align: center;
    letter-spacing: 0.8px;
    text-transform: uppercase;
}

.password-toggle {
    background: url("images/eye.png") no-repeat center !important;
    background-size: 18px !important;
    opacity: 0.5;
    cursor: pointer;
    width: 28px !important;
    height: 28px !important;
    margin-left: auto;
}

.password-toggle.active {
    background: url("images/eye-slash.png") no-repeat center !important;
    background-size: 18px !important;
}

/* Animations */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Mobile Overrides (Optimized for Visibility) */
@media (max-width: 576px) {
    body {
        height: 100vh !important;
        overflow: hidden !important;
        justify-content: flex-start !important;
    }
    
    header.masthead {
        min-height: 80px !important;
        height: 14vh !important;
        padding: 5px 0 !important;
    }
    
    header.masthead img {
        max-height: 60px !important;
    }
    
    .main-content {
        margin-top: -15px !important;
        padding: 10px !important;
        flex: 1 1 auto !important;
        display: flex !important;
        align-items: center !important;
    }
    
    .main-content .content {
        padding: 20px 15px !important;
        max-width: 95%;
        border-radius: 16px !important;
    }
    
    .main-content h1 {
        font-size: 18px !important;
        margin-bottom: 5px !important;
    }
    
    .login-form .form-group {
        margin-bottom: 12px !important;
    }

    .btn-primary {
        padding: 12px !important;
        font-size: 13px !important;
    }
    
    footer {
        padding: 5px 0 10px 0 !important;
        background: none !important;
        border-top: none !important;
        position: absolute !important;
        bottom: 0 !important;
        width: 100% !important;
    }
    
    .copyright {
        font-size: 9px !important;
        opacity: 0.6 !important;
        color: var(--text-muted) !important;
    }
}

/* Fix for landscape mobile */
@media (max-height: 500px) {
    body { height: auto !important; overflow-y: auto !important; }
    header.masthead { display: none !important; }
}