/* WhatsApp Login Page Styles */
:root {
    --whatsapp-primary: #25D366;
    --whatsapp-secondary: #128C7E;
    --whatsapp-dark: #075E54;
    --whatsapp-light: #DCF8C6;
    --whatsapp-bg-dark: #0a0a0a;
    --whatsapp-card-bg: #1e1e1e;
    --whatsapp-text-primary: #ffffff;
    --whatsapp-text-secondary: #b3b3b3;
    --whatsapp-border: #2a2a2a;
    --whatsapp-input-bg: #2a2a2a;
    --whatsapp-hover: #333333;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, var(--whatsapp-bg-dark) 0%, #1a1a1a 100%);
    min-height: 100vh;
    color: var(--whatsapp-text-primary);
    overflow-x: hidden;
}

.login-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 20px;
    position: relative;
}

    .login-container::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="%23ffffff" stroke-width="0.5" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
        opacity: 0.1;
        z-index: -1;
    }

.login-card {
    background: var(--whatsapp-card-bg);
    border-radius: 20px;
    padding: 40px;
    width: 100%;
    max-width: 440px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
    border: 1px solid var(--whatsapp-border);
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}

    .login-card::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 4px;
        background: linear-gradient(90deg, var(--whatsapp-primary), var(--whatsapp-secondary));
    }

.login-header {
    text-align: center;
    margin-bottom: 40px;
}

.whatsapp-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--whatsapp-primary), var(--whatsapp-secondary));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    box-shadow: 0 10px 30px rgba(37, 211, 102, 0.3);
}

    .whatsapp-icon i {
        font-size: 40px;
        color: white;
    }

.login-header h2 {
    color: var(--whatsapp-text-primary);
    margin-bottom: 8px;
    font-weight: 600;
    font-size: 28px;
}

.login-header p {
    color: var(--whatsapp-text-secondary);
    font-size: 16px;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.form-group {
    position: relative;
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.input-icon {
    position: absolute;
    left: 15px;
    color: var(--whatsapp-text-secondary);
    font-size: 16px;
    z-index: 2;
}

.form-control {
    width: 100%;
    padding: 15px 15px 15px 50px;
    background: var(--whatsapp-input-bg);
    border: 2px solid transparent;
    border-radius: 12px;
    color: var(--whatsapp-text-primary);
    font-size: 16px;
    transition: all 0.3s ease;
}

    .form-control::placeholder {
        color: var(--whatsapp-text-secondary);
    }

    .form-control:focus {
        outline: none;
        border-color: var(--whatsapp-primary);
        background: var(--whatsapp-hover);
        box-shadow: 0 0 0 4px rgba(37, 211, 102, 0.1);
    }

.password-toggle {
    position: absolute;
    right: 15px;
    background: none;
    border: none;
    color: var(--whatsapp-text-secondary);
    cursor: pointer;
    padding: 5px;
    transition: color 0.3s ease;
}

    .password-toggle:hover {
        color: var(--whatsapp-primary);
    }

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 10px 0;
}

.checkbox-wrapper {
    display: flex;
    align-items: center;
    cursor: pointer;
    font-size: 14px;
    color: var(--whatsapp-text-secondary);
}

    .checkbox-wrapper input[type="checkbox"] {
        display: none;
    }

.checkmark {
    width: 18px;
    height: 18px;
    border: 2px solid var(--whatsapp-border);
    border-radius: 4px;
    margin-right: 10px;
    position: relative;
    transition: all 0.3s ease;
}

.checkbox-wrapper input[type="checkbox"]:checked + .checkmark {
    background: var(--whatsapp-primary);
    border-color: var(--whatsapp-primary);
}

    .checkbox-wrapper input[type="checkbox"]:checked + .checkmark::after {
        content: '✓';
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        color: white;
        font-size: 12px;
        font-weight: bold;
    }

.forgot-password {
    color: var(--whatsapp-primary);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s ease;
}

    .forgot-password:hover {
        color: var(--whatsapp-secondary);
        text-decoration: underline;
    }

.login-btn {
    background: linear-gradient(135deg, var(--whatsapp-primary), var(--whatsapp-secondary));
    color: white;
    border: none;
    padding: 16px 30px;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 5px 15px rgba(37, 211, 102, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

    .login-btn:hover {
        transform: translateY(-2px);
        box-shadow: 0 8px 25px rgba(37, 211, 102, 0.4);
    }

    .login-btn:active {
        transform: translateY(0);
    }

.divider {
    text-align: center;
    position: relative;
    margin: 20px 0;
}

    .divider::before {
        content: '';
        position: absolute;
        top: 50%;
        left: 0;
        right: 0;
        height: 1px;
        background: var(--whatsapp-border);
    }

    .divider span {
        background: var(--whatsapp-card-bg);
        padding: 0 20px;
        color: var(--whatsapp-text-secondary);
        font-size: 14px;
    }

.social-login {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.social-btn {
    padding: 14px 20px;
    border: 2px solid var(--whatsapp-border);
    border-radius: 12px;
    background: transparent;
    color: var(--whatsapp-text-primary);
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    font-size: 15px;
}

    .social-btn:hover {
        border-color: var(--whatsapp-primary);
        background: var(--whatsapp-hover);
    }

.google-btn:hover {
    border-color: #db4437;
}

.register-link {
    text-align: center;
    margin-top: 20px;
    color: var(--whatsapp-text-secondary);
    font-size: 14px;
}

    .register-link a {
        color: var(--whatsapp-primary);
        text-decoration: none;
        font-weight: 600;
    }

        .register-link a:hover {
            text-decoration: underline;
        }

.login-footer {
    margin-top: 30px;
    text-align: center;
}

    .login-footer p {
        color: var(--whatsapp-text-secondary);
        font-size: 12px;
    }

/* Responsive Design */
@media (max-width: 768px) {
    .login-container {
        padding: 10px;
    }

    .login-card {
        padding: 30px 25px;
        margin: 10px;
    }

    .whatsapp-icon {
        width: 60px;
        height: 60px;
    }

        .whatsapp-icon i {
            font-size: 30px;
        }

    .login-header h2 {
        font-size: 24px;
    }

    .form-control {
        padding: 12px 12px 12px 45px;
        font-size: 14px;
    }

    .input-icon {
        left: 12px;
        font-size: 14px;
    }

    .login-btn {
        padding: 14px 25px;
        font-size: 15px;
    }
}

@media (max-width: 480px) {
    .login-card {
        padding: 25px 20px;
    }

    .form-options {
        flex-direction: column;
        gap: 15px;
        align-items: flex-start;
    }

    .checkbox-wrapper {
        font-size: 13px;
    }

    .forgot-password {
        font-size: 13px;
    }
}