/* EDU Mail Subscription Plugin Styles - Modern Look (v1.3.0) */
:root {
    --edu-primary-color: #0073e6; /* একটি আধুনিক নীল রঙ */
    --edu-primary-hover-color: #005bb5;
    --edu-secondary-color: #6c757d;
    --edu-secondary-hover-color: #5a6268;
    --edu-success-color: #28a745;
    --edu-error-color: #dc3545;
    --edu-info-color: #17a2b8;
    --edu-light-bg: #f8f9fa;
    --edu-dark-text: #343a40;
    --edu-light-text: #6c757d;
    --edu-border-color: #dee2e6;
    --edu-input-border-color: #ced4da;
    --edu-border-radius: 0.375rem; /* 6px */
    --edu-box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    --edu-box-shadow-lg: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
    --edu-font-primary: 'Inter', 'Hind Siliguri', sans-serif;
}

.edu-mail-form-container, .edu-mail-dashboard {
    max-width: 600px;
    margin: 40px auto;
    padding: 30px 35px;
    background-color: #ffffff;
    border: 1px solid var(--edu-border-color);
    border-radius: var(--edu-border-radius);
    box-shadow: var(--edu-box-shadow-lg);
    font-family: var(--edu-font-primary);
    color: var(--edu-dark-text);
}

.edu-mail-form-container h3, .edu-mail-dashboard h3 {
    color: var(--edu-dark-text);
    margin-top: 0;
    margin-bottom: 25px;
    font-weight: 600;
    font-size: 1.75rem;
    text-align: center;
    line-height: 1.3;
}
.edu-mail-dashboard h4 { /* Applied to all h4 in dashboard for consistency */
    font-size: 1.25rem;
    color: var(--edu-primary-color);
    margin-top: 35px;
    margin-bottom: 15px;
    border-bottom: 2px solid var(--edu-primary-color);
    padding-bottom: 10px;
    font-weight: 500;
}

.edu-form-group {
    margin-bottom: 22px;
}
.edu-form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--edu-dark-text);
    font-size: 0.95rem;
}
.edu-form-group input[type='text'],
.edu-form-group input[type='email'],
.edu-form-group input[type='password'],
.edu-form-group input[type='url'],
.edu-form-group input[type='number'],
.edu-form-group select,
.edu-form-group textarea {
    width: 100%;
    padding: 12px 18px;
    border: 1px solid var(--edu-input-border-color);
    border-radius: var(--edu-border-radius);
    box-sizing: border-box;
    font-size: 1rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    background-color: #fff;
    color: var(--edu-dark-text);
}
.edu-form-group input:focus,
.edu-form-group select:focus,
.edu-form-group textarea:focus {
    border-color: var(--edu-primary-color);
    box-shadow: 0 0 0 0.2rem rgba(0, 115, 230, 0.25);
    outline: none;
}
.edu-form-group select {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-image: url('data:image/svg+xml;charset=US-ASCII,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22292.4%22%20height%3D%22292.4%22%3E%3Cpath%20fill%3D%22%230073e6%22%20d%3D%22M287%2069.4a17.6%2017.6%200%200%200-13-5.4H18.4c-5%200-9.3%201.8-12.9%205.4A17.6%2017.6%200%200%200%200%2082.2c0%205%201.8%209.3%205.4%2012.9l128%20127.9c3.6%203.6%207.8%205.4%2012.8%205.4s9.2-1.8%2012.8-5.4L287%2095c3.5-3.5%205.4-7.8%205.4-12.8%200-5-1.9-9.2-5.4-12.9z%22%2F%3E%3C%2Fsvg%3E');
    background-repeat: no-repeat;
    background-position: right 0.9rem center;
    background-size: 0.65em auto;
    padding-right: 2.5rem;
}

.password-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}
.password-wrapper input[type='password'],
.password-wrapper input[type='text'] {
    flex-grow: 1;
}
.toggle-password {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    cursor: pointer;
    color: #777;
    user-select: none;
    font-size: 1.2rem;
}

.edu-input-group {
    display: flex;
    align-items: center;
    border: 1px solid var(--edu-input-border-color);
    border-radius: var(--edu-border-radius);
    overflow: hidden;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.edu-input-group:focus-within {
    border-color: var(--edu-primary-color);
    box-shadow: 0 0 0 0.2rem rgba(0, 115, 230, 0.25);
}
.edu-input-group input[type='text'] {
    border: none;
    flex-grow: 1;
    min-width: 0;
    border-radius: 0;
    padding-right:0;
}
.edu-input-group input[type='text']:focus {
    box-shadow: none;
}
.edu-input-group .edu-domain-text {
    background-color: var(--edu-light-bg);
    color: var(--edu-dark-text);
    white-space: nowrap;
    font-size: 1rem;
    padding: 12px 18px;
    border-left: 1px solid var(--edu-input-border-color);
}

.edu-button {
    background-color: var(--edu-primary-color);
    color: white;
    padding: 12px 25px;
    border: none;
    border-radius: var(--edu-border-radius);
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    transition: background-color 0.2s ease, transform 0.1s ease, box-shadow 0.2s ease;
    box-shadow: var(--edu-box-shadow);
}
.edu-button:hover, .edu-button:focus {
    background-color: var(--edu-primary-hover-color);
    transform: translateY(-1px);
    box-shadow: var(--edu-box-shadow-lg);
}
.edu-button:active {
    transform: translateY(0px);
    box-shadow: inset 0 1px 2px rgba(0,0,0,0.1);
}
.edu-button:disabled {
    background-color: #ccc;
    cursor: not-allowed;
    box-shadow: none;
    transform: none;
}

#edu_total_price {
    font-weight: bold;
    color: var(--edu-primary-color);
    font-size: 1.2rem;
}

.edu-mail-message {
    padding: 15px 20px;
    margin-bottom: 20px;
    border-radius: var(--edu-border-radius);
    border: 1px solid transparent;
    font-size: 0.95rem;
    line-height: 1.5;
    display: flex;
    align-items: center;
}
.edu-mail-message::before {
    font-family: 'dashicons';
    margin-right: 10px;
    font-size: 1.3rem;
}
.edu-mail-message.error {
    color: #721c24;
    background-color: #f8d7da;
    border-color: #f5c6cb;
}
.edu-mail-message.error::before { content: '\f534'; color: #721c24; }

.edu-mail-message.success {
    color: #155724;
    background-color: #d4edda;
    border-color: #c3e6cb;
}
.edu-mail-message.success::before { content: '\f147'; color: #155724; }

.edu-mail-message.info {
    color: #0c5460;
    background-color: #d1ecf1;
    border-color: #bee5eb;
}
.edu-mail-message.info::before { content: '\f348'; color: #0c5460; }

.required {
    color: var(--edu-error-color);
    margin-left: 2px;
}
.edu-form-footer {
    text-align: center;
    margin-top: 25px;
    font-size: 0.9rem;
    color: var(--edu-light-text);
}
.edu-form-footer a {
    color: var(--edu-primary-color);
    text-decoration: none;
    font-weight: 500;
}
.edu-form-footer a:hover {
    text-decoration: underline;
    color: var(--edu-primary-hover-color);
}

.edu-mail-dashboard p {
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 15px;
}
.edu-created-mails-list {
    list-style: none;
    padding-left: 0;
    margin-top: 10px;
}
.edu-created-mails-list li {
    background-color: var(--edu-light-bg);
    padding: 10px 15px;
    margin-bottom: 8px;
    border-radius: var(--edu-border-radius);
    border-left: 4px solid var(--edu-primary-color);
    font-size: 0.95rem;
    color: var(--edu-dark-text);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .edu-mail-form-container, .edu-mail-dashboard {
        margin: 20px 15px;
        padding: 25px 20px;
    }
    .edu-mail-form-container h3, .edu-mail-dashboard h3 {
        font-size: 1.5rem;
    }
    .edu-mail-dashboard h4 {
        font-size: 1.15rem;
    }
}