/* CvSU Color Theme */
:root {
    --cvsu-green: #006400;
    --cvsu-dark-green: #004d00;
    --cvsu-gold: #FFD700;
    --cvsu-light-green: #008000;
    --cvsu-white: #FFFFFF;
    --cvsu-light-gray: #f8f9fa;
    --cvsu-gray: #6c757d;
    --cvsu-dark: #343a40;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, var(--cvsu-green) 0%, var(--cvsu-dark-green) 100%);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.cvsu-container {
    background: var(--cvsu-white);
    border-radius: 15px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
    overflow: hidden;
    width: 100%;
    max-width: 450px;
    position: relative;
}

.cvsu-header {
    background: var(--cvsu-green);
    color: var(--cvsu-white);
    padding: 30px 20px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cvsu-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--cvsu-gold);
}

.cvsu-logo {
    width: 80px;
    height: 80px;
    margin: 0 auto 15px;
    background: url("resources/cvsulogo.png") no-repeat center center;
    background-color: var(--cvsu-dark-green);
    background-size: cover;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 14px;
    border: 3px solid var(--cvsu-gold);
}

.cvsu-title {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 5px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.cvsu-subtitle {
    font-size: 14px;
    opacity: 0.9;
    font-weight: 300;
}

.cvsu-body {
    padding: 40px 30px;
}

.form-group {
    margin-bottom: 25px;
    position: relative;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--cvsu-dark);
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-input {
    width: 100%;
    padding: 15px 20px;
    border: 2px solid #e9ecef;
    border-radius: 10px;
    font-size: 16px;
    transition: all 0.3s ease;
    background: var(--cvsu-light-gray);
}

.form-input:focus {
    outline: none;
    border-color: var(--cvsu-green);
    background: var(--cvsu-white);
    box-shadow: 0 0 0 3px rgba(0, 100, 0, 0.1);
}

.otp-input {
    letter-spacing: 10px;
    font-size: 24px;
    font-weight: bold;
    text-align: center;
    padding: 15px;
}

.btn {
    width: 100%;
    padding: 15px;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--cvsu-green) 0%, var(--cvsu-light-green) 100%);
    color: var(--cvsu-white);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--cvsu-dark-green) 0%, var(--cvsu-green) 100%);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 100, 0, 0.3);
}

.btn-success {
    background: linear-gradient(135deg, #28a745 0%, #20c997 100%);
    color: var(--cvsu-white);
}

.btn-success:hover {
    background: linear-gradient(135deg, #218838 0%, #1e9e8a 100%);
    transform: translateY(-2px);
}

.btn-secondary {
    background: var(--cvsu-gray);
    color: var(--cvsu-white);
}

.btn-secondary:hover {
    background: #5a6268;
    transform: translateY(-2px);
}

.message {
    padding: 15px;
    border-radius: 10px;
    margin-bottom: 20px;
    text-align: center;
    font-weight: 500;
}

.message.success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.message.error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.back-link {
    text-align: center;
    margin-top: 25px;
}

.back-link a {
    color: var(--cvsu-green);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.back-link a:hover {
    color: var(--cvsu-dark-green);
    text-decoration: underline;
}

.instructions {
    background: #e7f3ff;
    padding: 15px;
    border-radius: 10px;
    margin-bottom: 20px;
    border-left: 4px solid var(--cvsu-green);
    font-size: 14px;
}

.timer {
    text-align: center;
    color: var(--cvsu-gray);
    font-size: 14px;
    margin-bottom: 20px;
    font-weight: 500;
}

.password-strength {
    margin-top: 5px;
    font-size: 12px;
}

.weak { color: #dc3545; }
.medium { color: #ffc107; }
.strong { color: #28a745; }

/* Responsive Design */
@media (max-width: 480px) {
    .cvsu-container {
        margin: 10px;
        max-width: none;
    }
    
    .cvsu-body {
        padding: 30px 20px;
    }
    
    .cvsu-header {
        padding: 20px 15px;
    }
    
    .cvsu-title {
        font-size: 20px;
    }
}