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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(135deg, #0a5d61 0%, #199c9f 50%, #0d7a7c 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    font-size: 14px;
}

.login-container {
    width: 100%;
    max-width: 380px;
}

.login-box {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 20px;
    padding: 32px;
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.12),
        0 2px 8px rgba(0, 0, 0, 0.08),
        inset 0 1px 0 rgba(255, 255, 255, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.5);
}

.login-box h1 {
    text-align: center;
    color: #199c9f;
    margin-bottom: 8px;
    font-size: 1.5em;
    font-weight: 600;
    letter-spacing: -0.5px;
}

.login-box .tooltip-trigger {
    position: relative;
    display: inline-block;
    cursor: help;
    color: #199c9f;
    font-weight: 600;
    text-decoration: underline;
    text-decoration-style: dotted;
    transition: all 0.3s ease;
}

.login-box .tooltip-trigger:hover {
    color: #ffd700;
    transform: scale(1.1);
}

.login-box .tooltip {
    visibility: hidden;
    opacity: 0;
    position: absolute;
    bottom: 125%;
    left: 50%;
    transform: translateX(-50%) translateY(-10px);
    background: rgba(25, 156, 159, 0.95);
    color: #fff;
    padding: 8px 12px;
    border-radius: 8px;
    font-size: 0.85em;
    white-space: nowrap;
    pointer-events: none;
    transition: all 0.3s ease;
    z-index: 1000;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.login-box .tooltip::after {
    content: "";
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 6px solid transparent;
    border-top-color: rgba(25, 156, 159, 0.95);
}

.login-box .tooltip-trigger:hover .tooltip {
    visibility: visible;
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.subtitle {
    text-align: center;
    color: #718096;
    margin-bottom: 24px;
    font-size: 0.875em;
    font-weight: 400;
}

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

label {
    display: block;
    margin-bottom: 6px;
    font-weight: 500;
    color: #4a5568;
    font-size: 0.813em;
}

.input {
    width: 100%;
    padding: 10px 14px;
    border: 1.5px solid #e2e8f0;
    border-radius: 10px;
    font-size: 0.875em;
    transition: all 0.2s ease;
    background: rgba(255, 255, 255, 0.8);
}

.input:focus {
    outline: none;
    border-color: #199c9f;
    background: rgba(255, 255, 255, 1);
    box-shadow: 0 0 0 3px rgba(25, 156, 159, 0.1);
}

.btn {
    width: 100%;
    padding: 12px;
    border: none;
    border-radius: 10px;
    font-size: 0.875em;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    margin-top: 8px;
}

.btn-primary {
    background: linear-gradient(135deg, #199c9f 0%, #0d7a7c 100%);
    color: white;
    box-shadow: 0 4px 12px rgba(25, 156, 159, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(25, 156, 159, 0.4);
}

.error-message {
    padding: 10px;
    background: rgba(248, 215, 218, 0.6);
    color: #721c24;
    border-radius: 8px;
    margin-bottom: 18px;
    border: 1px solid rgba(245, 198, 203, 0.5);
    text-align: center;
    font-size: 0.813em;
}